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Merge tag 'for-linus-4.8' of git://git.code.sf.net/p/openipmi/linux-ipmi
[mirror_ubuntu-artful-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:
1191 BT_ERR("Used reserved LE_Scan_Enable param %d", cp->enable);
1192 break;
35815085 1193 }
5c1a4c8f
JK		 1194
1195 hci_dev_unlock(hdev);
eb9d91f5
AG		 1196}
1197
cf1d081f
JH		 1198static void hci_cc_le_read_white_list_size(struct hci_dev *hdev,
1199 struct sk_buff *skb)
1200{
1201 struct hci_rp_le_read_white_list_size *rp = (void *) skb->data;
1202
1203 BT_DBG("%s status 0x%2.2x size %u", hdev->name, rp->status, rp->size);
1204
45296acd
MH		 1205 if (rp->status)
1206 return;
1207
1208 hdev->le_white_list_size = rp->size;
cf1d081f
JH		 1209}
1210
0f36b589
MH		 1211static void hci_cc_le_clear_white_list(struct hci_dev *hdev,
1212 struct sk_buff *skb)
1213{
1214 __u8 status = *((__u8 *) skb->data);
1215
1216 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1217
45296acd
MH		 1218 if (status)
1219 return;
1220
dcc36c16 1221 hci_bdaddr_list_clear(&hdev->le_white_list);
0f36b589
MH		 1222}
1223
1224static void hci_cc_le_add_to_white_list(struct hci_dev *hdev,
1225 struct sk_buff *skb)
1226{
1227 struct hci_cp_le_add_to_white_list *sent;
1228 __u8 status = *((__u8 *) skb->data);
1229
1230 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1231
45296acd
MH		 1232 if (status)
1233 return;
1234
0f36b589
MH		 1235 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_WHITE_LIST);
1236 if (!sent)
1237 return;
1238
dcc36c16
JH		 1239 hci_bdaddr_list_add(&hdev->le_white_list, &sent->bdaddr,
1240 sent->bdaddr_type);
0f36b589
MH		 1241}
1242
1243static void hci_cc_le_del_from_white_list(struct hci_dev *hdev,
1244 struct sk_buff *skb)
1245{
1246 struct hci_cp_le_del_from_white_list *sent;
1247 __u8 status = *((__u8 *) skb->data);
1248
1249 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1250
45296acd
MH		 1251 if (status)
1252 return;
1253
0f36b589
MH		 1254 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_WHITE_LIST);
1255 if (!sent)
1256 return;
1257
dcc36c16
JH		 1258 hci_bdaddr_list_del(&hdev->le_white_list, &sent->bdaddr,
1259 sent->bdaddr_type);
0f36b589
MH		 1260}
1261
9b008c04
JH		 1262static void hci_cc_le_read_supported_states(struct hci_dev *hdev,
1263 struct sk_buff *skb)
1264{
1265 struct hci_rp_le_read_supported_states *rp = (void *) skb->data;
1266
1267 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1268
45296acd
MH		 1269 if (rp->status)
1270 return;
1271
1272 memcpy(hdev->le_states, rp->le_states, 8);
9b008c04
JH		 1273}
1274
a8e1bfaa
MH		 1275static void hci_cc_le_read_def_data_len(struct hci_dev *hdev,
1276 struct sk_buff *skb)
1277{
1278 struct hci_rp_le_read_def_data_len *rp = (void *) skb->data;
1279
1280 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1281
1282 if (rp->status)
1283 return;
1284
1285 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1286 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
1287}
1288
1289static void hci_cc_le_write_def_data_len(struct hci_dev *hdev,
1290 struct sk_buff *skb)
1291{
1292 struct hci_cp_le_write_def_data_len *sent;
1293 __u8 status = *((__u8 *) skb->data);
1294
1295 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1296
1297 if (status)
1298 return;
1299
1300 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1301 if (!sent)
1302 return;
1303
1304 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
1305 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
1306}
1307
1308static void hci_cc_le_read_max_data_len(struct hci_dev *hdev,
1309 struct sk_buff *skb)
1310{
1311 struct hci_rp_le_read_max_data_len *rp = (void *) skb->data;
1312
1313 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1314
1315 if (rp->status)
1316 return;
1317
1318 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
1319 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
1320 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
1321 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
1322}
1323
6039aa73
GP		 1324static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
1325 struct sk_buff *skb)
f9b49306 1326{
06199cf8 1327 struct hci_cp_write_le_host_supported *sent;
f9b49306
AG		 1328 __u8 status = *((__u8 *) skb->data);
1329
9f1db00c 1330 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f9b49306 1331
45296acd
MH		 1332 if (status)
1333 return;
1334
06199cf8 1335 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
8f984dfa 1336 if (!sent)
f9b49306
AG		 1337 return;
1338
5c1a4c8f
JK		 1339 hci_dev_lock(hdev);
1340
45296acd
MH		 1341 if (sent->le) {
1342 hdev->features[1][0] |= LMP_HOST_LE;
a1536da2 1343 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
45296acd
MH		 1344 } else {
1345 hdev->features[1][0] &= ~LMP_HOST_LE;
a358dc11
MH		 1346 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
1347 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
8f984dfa 1348 }
45296acd
MH		 1349
1350 if (sent->simul)
1351 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
1352 else
1353 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
5c1a4c8f
JK		 1354
1355 hci_dev_unlock(hdev);
f9b49306
AG		 1356}
1357
56ed2cb8
JH		 1358static void hci_cc_set_adv_param(struct hci_dev *hdev, struct sk_buff *skb)
1359{
1360 struct hci_cp_le_set_adv_param *cp;
1361 u8 status = *((u8 *) skb->data);
1362
1363 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1364
1365 if (status)
1366 return;
1367
1368 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
1369 if (!cp)
1370 return;
1371
1372 hci_dev_lock(hdev);
1373 hdev->adv_addr_type = cp->own_address_type;
1374 hci_dev_unlock(hdev);
1375}
1376
5ae76a94
AK		 1377static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
1378{
1379 struct hci_rp_read_rssi *rp = (void *) skb->data;
1380 struct hci_conn *conn;
1381
1382 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1383
1384 if (rp->status)
1385 return;
1386
1387 hci_dev_lock(hdev);
1388
1389 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1390 if (conn)
1391 conn->rssi = rp->rssi;
1392
1393 hci_dev_unlock(hdev);
1394}
1395
5a134fae
AK		 1396static void hci_cc_read_tx_power(struct hci_dev *hdev, struct sk_buff *skb)
1397{
1398 struct hci_cp_read_tx_power *sent;
1399 struct hci_rp_read_tx_power *rp = (void *) skb->data;
1400 struct hci_conn *conn;
1401
1402 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1403
1404 if (rp->status)
1405 return;
1406
1407 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
1408 if (!sent)
1409 return;
1410
1411 hci_dev_lock(hdev);
1412
1413 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
d0455ed9
AK		 1414 if (!conn)
1415 goto unlock;
1416
1417 switch (sent->type) {
1418 case 0x00:
5a134fae 1419 conn->tx_power = rp->tx_power;
d0455ed9
AK		 1420 break;
1421 case 0x01:
1422 conn->max_tx_power = rp->tx_power;
1423 break;
1424 }
5a134fae 1425
d0455ed9 1426unlock:
5a134fae
AK		 1427 hci_dev_unlock(hdev);
1428}
1429
c50b33c8
MH		 1430static void hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, struct sk_buff *skb)
1431{
1432 u8 status = *((u8 *) skb->data);
1433 u8 *mode;
1434
1435 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1436
1437 if (status)
1438 return;
1439
1440 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
1441 if (mode)
1442 hdev->ssp_debug_mode = *mode;
1443}
1444
6039aa73 1445static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
a9de9248 1446{
9f1db00c 1447 BT_DBG("%s status 0x%2.2x", hdev->name, status);
a9de9248
MH		 1448
1449 if (status) {
a9de9248 1450 hci_conn_check_pending(hdev);
314b2381
JH		 1451 return;
1452 }
1453
89352e7d 1454 set_bit(HCI_INQUIRY, &hdev->flags);
1da177e4
LT		 1455}
1456
6039aa73 1457static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1da177e4 1458{
a9de9248 1459 struct hci_cp_create_conn *cp;
1da177e4 1460 struct hci_conn *conn;
1da177e4 1461
9f1db00c 1462 BT_DBG("%s status 0x%2.2x", hdev->name, status);
a9de9248
MH		 1463
1464 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1da177e4
LT		 1465 if (!cp)
1466 return;
1467
1468 hci_dev_lock(hdev);
1469
1470 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1471
6ed93dc6 1472 BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn);
1da177e4
LT		 1473
1474 if (status) {
1475 if (conn && conn->state == BT_CONNECT) {
4c67bc74
MH		 1476 if (status != 0x0c || conn->attempt > 2) {
1477 conn->state = BT_CLOSED;
539c496d 1478 hci_connect_cfm(conn, status);
4c67bc74
MH		 1479 hci_conn_del(conn);
1480 } else
1481 conn->state = BT_CONNECT2;
1da177e4
LT		 1482 }
1483 } else {
1484 if (!conn) {
a5c4e309
JH		 1485 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr,
1486 HCI_ROLE_MASTER);
1487 if (!conn)
893ef971 1488 BT_ERR("No memory for new connection");
1da177e4
LT		 1489 }
1490 }
1491
1492 hci_dev_unlock(hdev);
1493}
1494
a9de9248 1495static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1da177e4 1496{
a9de9248
MH		 1497 struct hci_cp_add_sco *cp;
1498 struct hci_conn *acl, *sco;
1499 __u16 handle;
1da177e4 1500
9f1db00c 1501 BT_DBG("%s status 0x%2.2x", hdev->name, status);
b6a0dc82 1502
a9de9248
MH		 1503 if (!status)
1504 return;
1da177e4 1505
a9de9248
MH		 1506 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
1507 if (!cp)
1508 return;
1da177e4 1509
a9de9248 1510 handle = __le16_to_cpu(cp->handle);
1da177e4 1511
9f1db00c 1512 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
1da177e4 1513
a9de9248 1514 hci_dev_lock(hdev);
1da177e4 1515
a9de9248 1516 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce
AE		 1517 if (acl) {
1518 sco = acl->link;
1519 if (sco) {
1520 sco->state = BT_CLOSED;
1da177e4 1521
539c496d 1522 hci_connect_cfm(sco, status);
5a08ecce
AE		 1523 hci_conn_del(sco);
1524 }
a9de9248 1525 }
1da177e4 1526
a9de9248
MH		 1527 hci_dev_unlock(hdev);
1528}
1da177e4 1529
f8558555
MH		 1530static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
1531{
1532 struct hci_cp_auth_requested *cp;
1533 struct hci_conn *conn;
1534
9f1db00c 1535 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f8558555
MH		 1536
1537 if (!status)
1538 return;
1539
1540 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
1541 if (!cp)
1542 return;
1543
1544 hci_dev_lock(hdev);
1545
1546 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1547 if (conn) {
1548 if (conn->state == BT_CONFIG) {
539c496d 1549 hci_connect_cfm(conn, status);
76a68ba0 1550 hci_conn_drop(conn);
f8558555
MH		 1551 }
1552 }
1553
1554 hci_dev_unlock(hdev);
1555}
1556
1557static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
1558{
1559 struct hci_cp_set_conn_encrypt *cp;
1560 struct hci_conn *conn;
1561
9f1db00c 1562 BT_DBG("%s status 0x%2.2x", hdev->name, status);
f8558555
MH		 1563
1564 if (!status)
1565 return;
1566
1567 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
1568 if (!cp)
1569 return;
1570
1571 hci_dev_lock(hdev);
1572
1573 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1574 if (conn) {
1575 if (conn->state == BT_CONFIG) {
539c496d 1576 hci_connect_cfm(conn, status);
76a68ba0 1577 hci_conn_drop(conn);
f8558555
MH		 1578 }
1579 }
1580
1581 hci_dev_unlock(hdev);
1582}
1583
127178d2 1584static int hci_outgoing_auth_needed(struct hci_dev *hdev,
807deac2 1585 struct hci_conn *conn)
392599b9 1586{
392599b9
JH		 1587 if (conn->state != BT_CONFIG || !conn->out)
1588 return 0;
1589
765c2a96 1590 if (conn->pending_sec_level == BT_SECURITY_SDP)
392599b9
JH		 1591 return 0;
1592
1593 /* Only request authentication for SSP connections or non-SSP
264b8b4e
JH		 1594 * devices with sec_level MEDIUM or HIGH or if MITM protection
1595 * is requested.
1596 */
807deac2 1597 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
7e3691e1 1598 conn->pending_sec_level != BT_SECURITY_FIPS &&
264b8b4e
JH		 1599 conn->pending_sec_level != BT_SECURITY_HIGH &&
1600 conn->pending_sec_level != BT_SECURITY_MEDIUM)
392599b9
JH		 1601 return 0;
1602
392599b9
JH		 1603 return 1;
1604}
1605
6039aa73 1606static int hci_resolve_name(struct hci_dev *hdev,
04124681 1607 struct inquiry_entry *e)
30dc78e1
JH		 1608{
1609 struct hci_cp_remote_name_req cp;
1610
1611 memset(&cp, 0, sizeof(cp));
1612
1613 bacpy(&cp.bdaddr, &e->data.bdaddr);
1614 cp.pscan_rep_mode = e->data.pscan_rep_mode;
1615 cp.pscan_mode = e->data.pscan_mode;
1616 cp.clock_offset = e->data.clock_offset;
1617
1618 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
1619}
1620
b644ba33 1621static bool hci_resolve_next_name(struct hci_dev *hdev)
30dc78e1
JH		 1622{
1623 struct discovery_state *discov = &hdev->discovery;
1624 struct inquiry_entry *e;
1625
b644ba33
JH		 1626 if (list_empty(&discov->resolve))
1627 return false;
1628
1629 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
c810089c
RM		 1630 if (!e)
1631 return false;
1632
b644ba33
JH		 1633 if (hci_resolve_name(hdev, e) == 0) {
1634 e->name_state = NAME_PENDING;
1635 return true;
1636 }
1637
1638 return false;
1639}
1640
1641static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
04124681 1642 bdaddr_t *bdaddr, u8 *name, u8 name_len)
b644ba33
JH		 1643{
1644 struct discovery_state *discov = &hdev->discovery;
1645 struct inquiry_entry *e;
1646
60cb49d2
JH		 1647 /* Update the mgmt connected state if necessary. Be careful with
1648 * conn objects that exist but are not (yet) connected however.
1649 * Only those in BT_CONFIG or BT_CONNECTED states can be
1650 * considered connected.
1651 */
1652 if (conn &&
1653 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
cb77c3ec 1654 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 1655 mgmt_device_connected(hdev, conn, 0, name, name_len);
b644ba33
JH		 1656
1657 if (discov->state == DISCOVERY_STOPPED)
1658 return;
1659
30dc78e1
JH		 1660 if (discov->state == DISCOVERY_STOPPING)
1661 goto discov_complete;
1662
1663 if (discov->state != DISCOVERY_RESOLVING)
1664 return;
1665
1666 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
7cc8380e
RM		 1667 /* If the device was not found in a list of found devices names of which
1668 * are pending. there is no need to continue resolving a next name as it
1669 * will be done upon receiving another Remote Name Request Complete
1670 * Event */
1671 if (!e)
1672 return;
1673
1674 list_del(&e->list);
1675 if (name) {
30dc78e1 1676 e->name_state = NAME_KNOWN;
7cc8380e
RM		 1677 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00,
1678 e->data.rssi, name, name_len);
c3e7c0d9
RM		 1679 } else {
1680 e->name_state = NAME_NOT_KNOWN;
30dc78e1
JH		 1681 }
1682
b644ba33 1683 if (hci_resolve_next_name(hdev))
30dc78e1 1684 return;
30dc78e1
JH		 1685
1686discov_complete:
1687 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
1688}
1689
a9de9248
MH		 1690static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
1691{
127178d2
JH		 1692 struct hci_cp_remote_name_req *cp;
1693 struct hci_conn *conn;
1694
9f1db00c 1695 BT_DBG("%s status 0x%2.2x", hdev->name, status);
127178d2
JH		 1696
1697 /* If successful wait for the name req complete event before
1698 * checking for the need to do authentication */
1699 if (!status)
1700 return;
1701
1702 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
1703 if (!cp)
1704 return;
1705
1706 hci_dev_lock(hdev);
1707
b644ba33
JH		 1708 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1709
d7a5a11d 1710 if (hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 1711 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
30dc78e1 1712
79c6c70c
JH		 1713 if (!conn)
1714 goto unlock;
1715
1716 if (!hci_outgoing_auth_needed(hdev, conn))
1717 goto unlock;
1718
51a8efd7 1719 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
c1f23a2b
JB		 1720 struct hci_cp_auth_requested auth_cp;
1721
977f8fce
JH		 1722 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
1723
c1f23a2b
JB		 1724 auth_cp.handle = __cpu_to_le16(conn->handle);
1725 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
1726 sizeof(auth_cp), &auth_cp);
127178d2
JH		 1727 }
1728
79c6c70c 1729unlock:
127178d2 1730 hci_dev_unlock(hdev);
a9de9248 1731}
1da177e4 1732
769be974
MH		 1733static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
1734{
1735 struct hci_cp_read_remote_features *cp;
1736 struct hci_conn *conn;
1737
9f1db00c 1738 BT_DBG("%s status 0x%2.2x", hdev->name, status);
769be974
MH		 1739
1740 if (!status)
1741 return;
1742
1743 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
1744 if (!cp)
1745 return;
1746
1747 hci_dev_lock(hdev);
1748
1749 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1750 if (conn) {
1751 if (conn->state == BT_CONFIG) {
539c496d 1752 hci_connect_cfm(conn, status);
76a68ba0 1753 hci_conn_drop(conn);
769be974
MH		 1754 }
1755 }
1756
1757 hci_dev_unlock(hdev);
1758}
1759
1760static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
1761{
1762 struct hci_cp_read_remote_ext_features *cp;
1763 struct hci_conn *conn;
1764
9f1db00c 1765 BT_DBG("%s status 0x%2.2x", hdev->name, status);
769be974
MH		 1766
1767 if (!status)
1768 return;
1769
1770 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
1771 if (!cp)
1772 return;
1773
1774 hci_dev_lock(hdev);
1775
1776 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1777 if (conn) {
1778 if (conn->state == BT_CONFIG) {
539c496d 1779 hci_connect_cfm(conn, status);
76a68ba0 1780 hci_conn_drop(conn);
769be974
MH		 1781 }
1782 }
1783
1784 hci_dev_unlock(hdev);
1785}
1786
a9de9248
MH		 1787static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
1788{
b6a0dc82
MH		 1789 struct hci_cp_setup_sync_conn *cp;
1790 struct hci_conn *acl, *sco;
1791 __u16 handle;
1792
9f1db00c 1793 BT_DBG("%s status 0x%2.2x", hdev->name, status);
b6a0dc82
MH		 1794
1795 if (!status)
1796 return;
1797
1798 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
1799 if (!cp)
1800 return;
1801
1802 handle = __le16_to_cpu(cp->handle);
1803
9f1db00c 1804 BT_DBG("%s handle 0x%4.4x", hdev->name, handle);
b6a0dc82
MH		 1805
1806 hci_dev_lock(hdev);
1807
1808 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce
AE		 1809 if (acl) {
1810 sco = acl->link;
1811 if (sco) {
1812 sco->state = BT_CLOSED;
b6a0dc82 1813
539c496d 1814 hci_connect_cfm(sco, status);
5a08ecce
AE		 1815 hci_conn_del(sco);
1816 }
b6a0dc82
MH		 1817 }
1818
1819 hci_dev_unlock(hdev);
1da177e4
LT		 1820}
1821
a9de9248 1822static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1da177e4 1823{
a9de9248
MH		 1824 struct hci_cp_sniff_mode *cp;
1825 struct hci_conn *conn;
1da177e4 1826
9f1db00c 1827 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 1828
a9de9248
MH		 1829 if (!status)
1830 return;
04837f64 1831
a9de9248
MH		 1832 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
1833 if (!cp)
1834 return;
04837f64 1835
a9de9248 1836 hci_dev_lock(hdev);
04837f64 1837
a9de9248 1838 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 1839 if (conn) {
51a8efd7 1840 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
04837f64 1841
51a8efd7 1842 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 1843 hci_sco_setup(conn, status);
1844 }
1845
a9de9248
MH		 1846 hci_dev_unlock(hdev);
1847}
04837f64 1848
a9de9248
MH		 1849static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
1850{
1851 struct hci_cp_exit_sniff_mode *cp;
1852 struct hci_conn *conn;
04837f64 1853
9f1db00c 1854 BT_DBG("%s status 0x%2.2x", hdev->name, status);
04837f64 1855
a9de9248
MH		 1856 if (!status)
1857 return;
04837f64 1858
a9de9248
MH		 1859 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
1860 if (!cp)
1861 return;
04837f64 1862
a9de9248 1863 hci_dev_lock(hdev);
1da177e4 1864
a9de9248 1865 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 1866 if (conn) {
51a8efd7 1867 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1da177e4 1868
51a8efd7 1869 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 1870 hci_sco_setup(conn, status);
1871 }
1872
a9de9248 1873 hci_dev_unlock(hdev);
1da177e4
LT		 1874}
1875
88c3df13
JH		 1876static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
1877{
1878 struct hci_cp_disconnect *cp;
1879 struct hci_conn *conn;
1880
1881 if (!status)
1882 return;
1883
1884 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
1885 if (!cp)
1886 return;
1887
1888 hci_dev_lock(hdev);
1889
1890 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1891 if (conn)
1892 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
04124681 1893 conn->dst_type, status);
88c3df13
JH		 1894
1895 hci_dev_unlock(hdev);
1896}
1897
cb1d68f7
JH		 1898static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
1899{
1900 struct hci_cp_le_create_conn *cp;
1901 struct hci_conn *conn;
1902
1903 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1904
1905 /* All connection failure handling is taken care of by the
1906 * hci_le_conn_failed function which is triggered by the HCI
1907 * request completion callbacks used for connecting.
1908 */
1909 if (status)
1910 return;
1911
1912 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
1913 if (!cp)
1914 return;
1915
1916 hci_dev_lock(hdev);
1917
9d4c1cc1
JH		 1918 conn = hci_conn_hash_lookup_le(hdev, &cp->peer_addr,
1919 cp->peer_addr_type);
cb1d68f7
JH		 1920 if (!conn)
1921 goto unlock;
1922
1923 /* Store the initiator and responder address information which
1924 * is needed for SMP. These values will not change during the
1925 * lifetime of the connection.
1926 */
1927 conn->init_addr_type = cp->own_address_type;
1928 if (cp->own_address_type == ADDR_LE_DEV_RANDOM)
1929 bacpy(&conn->init_addr, &hdev->random_addr);
1930 else
1931 bacpy(&conn->init_addr, &hdev->bdaddr);
1932
1933 conn->resp_addr_type = cp->peer_addr_type;
1934 bacpy(&conn->resp_addr, &cp->peer_addr);
1935
9489eca4
JH		 1936 /* We don't want the connection attempt to stick around
1937 * indefinitely since LE doesn't have a page timeout concept
1938 * like BR/EDR. Set a timer for any connection that doesn't use
1939 * the white list for connecting.
1940 */
1941 if (cp->filter_policy == HCI_LE_USE_PEER_ADDR)
1942 queue_delayed_work(conn->hdev->workqueue,
1943 &conn->le_conn_timeout,
09ae260b 1944 conn->conn_timeout);
9489eca4 1945
cb1d68f7
JH		 1946unlock:
1947 hci_dev_unlock(hdev);
1948}
1949
0fe29fd1
MH		 1950static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
1951{
1952 struct hci_cp_le_read_remote_features *cp;
1953 struct hci_conn *conn;
1954
1955 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1956
1957 if (!status)
1958 return;
1959
1960 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
1961 if (!cp)
1962 return;
1963
1964 hci_dev_lock(hdev);
1965
1966 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1967 if (conn) {
1968 if (conn->state == BT_CONFIG) {
1969 hci_connect_cfm(conn, status);
1970 hci_conn_drop(conn);
1971 }
1972 }
1973
1974 hci_dev_unlock(hdev);
1975}
1976
81d0c8ad
JH		 1977static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
1978{
1979 struct hci_cp_le_start_enc *cp;
1980 struct hci_conn *conn;
1981
1982 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1983
1984 if (!status)
1985 return;
1986
1987 hci_dev_lock(hdev);
1988
1989 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
1990 if (!cp)
1991 goto unlock;
1992
1993 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
1994 if (!conn)
1995 goto unlock;
1996
1997 if (conn->state != BT_CONNECTED)
1998 goto unlock;
1999
2000 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2001 hci_conn_drop(conn);
2002
2003unlock:
2004 hci_dev_unlock(hdev);
2005}
2006
50fc85f1
KP		 2007static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2008{
2009 struct hci_cp_switch_role *cp;
2010 struct hci_conn *conn;
2011
2012 BT_DBG("%s status 0x%2.2x", hdev->name, status);
2013
2014 if (!status)
2015 return;
2016
2017 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
2018 if (!cp)
2019 return;
2020
2021 hci_dev_lock(hdev);
2022
2023 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2024 if (conn)
2025 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
2026
2027 hci_dev_unlock(hdev);
2028}
2029
6039aa73 2030static void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4
LT		 2031{
2032 __u8 status = *((__u8 *) skb->data);
30dc78e1
JH		 2033 struct discovery_state *discov = &hdev->discovery;
2034 struct inquiry_entry *e;
1da177e4 2035
9f1db00c 2036 BT_DBG("%s status 0x%2.2x", hdev->name, status);
1da177e4 2037
a9de9248 2038 hci_conn_check_pending(hdev);
89352e7d
AG		 2039
2040 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
2041 return;
2042
4e857c58 2043 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3e13fa1e
AG		 2044 wake_up_bit(&hdev->flags, HCI_INQUIRY);
2045
d7a5a11d 2046 if (!hci_dev_test_flag(hdev, HCI_MGMT))
30dc78e1
JH		 2047 return;
2048
56e5cb86 2049 hci_dev_lock(hdev);
30dc78e1 2050
343f935b 2051 if (discov->state != DISCOVERY_FINDING)
30dc78e1
JH		 2052 goto unlock;
2053
2054 if (list_empty(&discov->resolve)) {
07d2334a
JP		 2055 /* When BR/EDR inquiry is active and no LE scanning is in
2056 * progress, then change discovery state to indicate completion.
2057 *
2058 * When running LE scanning and BR/EDR inquiry simultaneously
2059 * and the LE scan already finished, then change the discovery
2060 * state to indicate completion.
2061 */
2062 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2063 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2064 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 2065 goto unlock;
2066 }
2067
2068 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
2069 if (e && hci_resolve_name(hdev, e) == 0) {
2070 e->name_state = NAME_PENDING;
2071 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
2072 } else {
07d2334a
JP		 2073 /* When BR/EDR inquiry is active and no LE scanning is in
2074 * progress, then change discovery state to indicate completion.
2075 *
2076 * When running LE scanning and BR/EDR inquiry simultaneously
2077 * and the LE scan already finished, then change the discovery
2078 * state to indicate completion.
2079 */
2080 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
2081 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
2082 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 2083 }
2084
2085unlock:
56e5cb86 2086 hci_dev_unlock(hdev);
1da177e4
LT		 2087}
2088
6039aa73 2089static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2090{
45bb4bf0 2091 struct inquiry_data data;
a9de9248 2092 struct inquiry_info *info = (void *) (skb->data + 1);
1da177e4
LT		 2093 int num_rsp = *((__u8 *) skb->data);
2094
2095 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
2096
45bb4bf0
MH		 2097 if (!num_rsp)
2098 return;
2099
d7a5a11d 2100 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 2101 return;
2102
1da177e4 2103 hci_dev_lock(hdev);
45bb4bf0 2104
e17acd40 2105 for (; num_rsp; num_rsp--, info++) {
af58925c 2106 u32 flags;
3175405b 2107
1da177e4
LT		 2108 bacpy(&data.bdaddr, &info->bdaddr);
2109 data.pscan_rep_mode = info->pscan_rep_mode;
2110 data.pscan_period_mode = info->pscan_period_mode;
2111 data.pscan_mode = info->pscan_mode;
2112 memcpy(data.dev_class, info->dev_class, 3);
2113 data.clock_offset = info->clock_offset;
efb2513f 2114 data.rssi = HCI_RSSI_INVALID;
41a96212 2115 data.ssp_mode = 0x00;
3175405b 2116
af58925c
MH		 2117 flags = hci_inquiry_cache_update(hdev, &data, false);
2118
48264f06 2119 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
efb2513f
MH		 2120 info->dev_class, HCI_RSSI_INVALID,
2121 flags, NULL, 0, NULL, 0);
1da177e4 2122 }
45bb4bf0 2123
1da177e4
LT		 2124 hci_dev_unlock(hdev);
2125}
2126
6039aa73 2127static void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2128{
a9de9248
MH		 2129 struct hci_ev_conn_complete *ev = (void *) skb->data;
2130 struct hci_conn *conn;
1da177e4
LT		 2131
2132 BT_DBG("%s", hdev->name);
2133
2134 hci_dev_lock(hdev);
2135
2136 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9499237a
MH		 2137 if (!conn) {
2138 if (ev->link_type != SCO_LINK)
2139 goto unlock;
2140
2141 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
2142 if (!conn)
2143 goto unlock;
2144
2145 conn->type = SCO_LINK;
2146 }
1da177e4
LT		 2147
2148 if (!ev->status) {
2149 conn->handle = __le16_to_cpu(ev->handle);
769be974
MH		 2150
2151 if (conn->type == ACL_LINK) {
2152 conn->state = BT_CONFIG;
2153 hci_conn_hold(conn);
a9ea3ed9
SJ		 2154
2155 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
2156 !hci_find_link_key(hdev, &ev->bdaddr))
2157 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
2158 else
2159 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
769be974
MH		 2160 } else
2161 conn->state = BT_CONNECTED;
1da177e4 2162
23b9ceb7 2163 hci_debugfs_create_conn(conn);
7d0db0a3
MH		 2164 hci_conn_add_sysfs(conn);
2165
1da177e4 2166 if (test_bit(HCI_AUTH, &hdev->flags))
4dae2798 2167 set_bit(HCI_CONN_AUTH, &conn->flags);
1da177e4
LT		 2168
2169 if (test_bit(HCI_ENCRYPT, &hdev->flags))
4dae2798 2170 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
1da177e4 2171
04837f64
MH		 2172 /* Get remote features */
2173 if (conn->type == ACL_LINK) {
2174 struct hci_cp_read_remote_features cp;
2175 cp.handle = ev->handle;
769be974 2176 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
04124681 2177 sizeof(cp), &cp);
22f433dc 2178
01b1cb87 2179 hci_req_update_scan(hdev);
04837f64
MH		 2180 }
2181
1da177e4 2182 /* Set packet type for incoming connection */
d095c1eb 2183 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
1da177e4
LT		 2184 struct hci_cp_change_conn_ptype cp;
2185 cp.handle = ev->handle;
a8746417 2186 cp.pkt_type = cpu_to_le16(conn->pkt_type);
04124681
GP		 2187 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
2188 &cp);
1da177e4 2189 }
17d5c04c 2190 } else {
1da177e4 2191 conn->state = BT_CLOSED;
17d5c04c 2192 if (conn->type == ACL_LINK)
64c7b77c 2193 mgmt_connect_failed(hdev, &conn->dst, conn->type,
04124681 2194 conn->dst_type, ev->status);
17d5c04c 2195 }
1da177e4 2196
e73439d8
MH		 2197 if (conn->type == ACL_LINK)
2198 hci_sco_setup(conn, ev->status);
1da177e4 2199
769be974 2200 if (ev->status) {
539c496d 2201 hci_connect_cfm(conn, ev->status);
1da177e4 2202 hci_conn_del(conn);
c89b6e6b 2203 } else if (ev->link_type != ACL_LINK)
539c496d 2204 hci_connect_cfm(conn, ev->status);
1da177e4 2205
a9de9248 2206unlock:
1da177e4 2207 hci_dev_unlock(hdev);
1da177e4 2208
a9de9248 2209 hci_conn_check_pending(hdev);
1da177e4
LT		 2210}
2211
70c46425
JH		 2212static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
2213{
2214 struct hci_cp_reject_conn_req cp;
2215
2216 bacpy(&cp.bdaddr, bdaddr);
2217 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
2218 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
2219}
2220
6039aa73 2221static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2222{
a9de9248
MH		 2223 struct hci_ev_conn_request *ev = (void *) skb->data;
2224 int mask = hdev->link_mode;
70c46425
JH		 2225 struct inquiry_entry *ie;
2226 struct hci_conn *conn;
20714bfe 2227 __u8 flags = 0;
1da177e4 2228
6ed93dc6 2229 BT_DBG("%s bdaddr %pMR type 0x%x", hdev->name, &ev->bdaddr,
807deac2 2230 ev->link_type);
1da177e4 2231
20714bfe
FD		 2232 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
2233 &flags);
1da177e4 2234
70c46425
JH		 2235 if (!(mask & HCI_LM_ACCEPT)) {
2236 hci_reject_conn(hdev, &ev->bdaddr);
2237 return;
2238 }
2239
46c4c941
JH		 2240 if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr,
2241 BDADDR_BREDR)) {
2242 hci_reject_conn(hdev, &ev->bdaddr);
2243 return;
2244 }
2245
6a8fc95c
JH		 2246 /* Require HCI_CONNECTABLE or a whitelist entry to accept the
2247 * connection. These features are only touched through mgmt so
2248 * only do the checks if HCI_MGMT is set.
2249 */
d7a5a11d
MH		 2250 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
2251 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
46c4c941
JH		 2252 !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr,
2253 BDADDR_BREDR)) {
2254 hci_reject_conn(hdev, &ev->bdaddr);
2255 return;
70c46425 2256 }
1da177e4 2257
70c46425 2258 /* Connection accepted */
b6a0dc82 2259
70c46425
JH		 2260 hci_dev_lock(hdev);
2261
2262 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
2263 if (ie)
2264 memcpy(ie->data.dev_class, ev->dev_class, 3);
c7bdd502 2265
70c46425
JH		 2266 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
2267 &ev->bdaddr);
2268 if (!conn) {
a5c4e309
JH		 2269 conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr,
2270 HCI_ROLE_SLAVE);
a9de9248 2271 if (!conn) {
70c46425
JH		 2272 BT_ERR("No memory for new connection");
2273 hci_dev_unlock(hdev);
2274 return;
1da177e4 2275 }
70c46425 2276 }
b6a0dc82 2277
70c46425 2278 memcpy(conn->dev_class, ev->dev_class, 3);
b6a0dc82 2279
70c46425 2280 hci_dev_unlock(hdev);
1da177e4 2281
70c46425
JH		 2282 if (ev->link_type == ACL_LINK ||
2283 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
2284 struct hci_cp_accept_conn_req cp;
2285 conn->state = BT_CONNECT;
1da177e4 2286
70c46425 2287 bacpy(&cp.bdaddr, &ev->bdaddr);
b6a0dc82 2288
70c46425
JH		 2289 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
2290 cp.role = 0x00; /* Become master */
2291 else
2292 cp.role = 0x01; /* Remain slave */
b6a0dc82 2293
70c46425
JH		 2294 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
2295 } else if (!(flags & HCI_PROTO_DEFER)) {
2296 struct hci_cp_accept_sync_conn_req cp;
2297 conn->state = BT_CONNECT;
b6a0dc82 2298
70c46425
JH		 2299 bacpy(&cp.bdaddr, &ev->bdaddr);
2300 cp.pkt_type = cpu_to_le16(conn->pkt_type);
b6a0dc82 2301
70c46425
JH		 2302 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
2303 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
2304 cp.max_latency = cpu_to_le16(0xffff);
2305 cp.content_format = cpu_to_le16(hdev->voice_setting);
2306 cp.retrans_effort = 0xff;
1da177e4 2307
70c46425
JH		 2308 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
2309 &cp);
a9de9248 2310 } else {
70c46425 2311 conn->state = BT_CONNECT2;
539c496d 2312 hci_connect_cfm(conn, 0);
1da177e4 2313 }
1da177e4
LT		 2314}
2315
f0d6a0ea
MA		 2316static u8 hci_to_mgmt_reason(u8 err)
2317{
2318 switch (err) {
2319 case HCI_ERROR_CONNECTION_TIMEOUT:
2320 return MGMT_DEV_DISCONN_TIMEOUT;
2321 case HCI_ERROR_REMOTE_USER_TERM:
2322 case HCI_ERROR_REMOTE_LOW_RESOURCES:
2323 case HCI_ERROR_REMOTE_POWER_OFF:
2324 return MGMT_DEV_DISCONN_REMOTE;
2325 case HCI_ERROR_LOCAL_HOST_TERM:
2326 return MGMT_DEV_DISCONN_LOCAL_HOST;
2327 default:
2328 return MGMT_DEV_DISCONN_UNKNOWN;
2329 }
2330}
2331
6039aa73 2332static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
04837f64 2333{
a9de9248 2334 struct hci_ev_disconn_complete *ev = (void *) skb->data;
160b9251 2335 u8 reason;
9fcb18ef 2336 struct hci_conn_params *params;
04837f64 2337 struct hci_conn *conn;
12d4a3b2 2338 bool mgmt_connected;
3846220b 2339 u8 type;
04837f64 2340
9f1db00c 2341 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
04837f64
MH		 2342
2343 hci_dev_lock(hdev);
2344
2345 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
f7520543
JH		 2346 if (!conn)
2347 goto unlock;
7d0db0a3 2348
abf54a50
AG		 2349 if (ev->status) {
2350 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
2351 conn->dst_type, ev->status);
2352 goto unlock;
37d9ef76 2353 }
f7520543 2354
3846220b
AG		 2355 conn->state = BT_CLOSED;
2356
12d4a3b2 2357 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
160b9251
SJ		 2358
2359 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
2360 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
2361 else
2362 reason = hci_to_mgmt_reason(ev->reason);
2363
12d4a3b2
JH		 2364 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2365 reason, mgmt_connected);
abf54a50 2366
22f433dc
JH		 2367 if (conn->type == ACL_LINK) {
2368 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2369 hci_remove_link_key(hdev, &conn->dst);
2370
01b1cb87 2371 hci_req_update_scan(hdev);
22f433dc 2372 }
2210246c 2373
9fcb18ef
AG		 2374 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2375 if (params) {
2376 switch (params->auto_connect) {
2377 case HCI_AUTO_CONN_LINK_LOSS:
2378 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2379 break;
2380 /* Fall through */
2381
4b9e7e75 2382 case HCI_AUTO_CONN_DIRECT:
9fcb18ef 2383 case HCI_AUTO_CONN_ALWAYS:
418025d1
JH		 2384 list_del_init(&params->action);
2385 list_add(&params->action, &hdev->pend_le_conns);
2386 hci_update_background_scan(hdev);
9fcb18ef
AG		 2387 break;
2388
2389 default:
2390 break;
2391 }
2392 }
2393
3846220b 2394 type = conn->type;
2210246c 2395
3a6d576b 2396 hci_disconn_cfm(conn, ev->reason);
3846220b
AG		 2397 hci_conn_del(conn);
2398
2399 /* Re-enable advertising if necessary, since it might
2400 * have been disabled by the connection. From the
2401 * HCI_LE_Set_Advertise_Enable command description in
2402 * the core specification (v4.0):
2403 * "The Controller shall continue advertising until the Host
2404 * issues an LE_Set_Advertise_Enable command with
2405 * Advertising_Enable set to 0x00 (Advertising is disabled)
2406 * or until a connection is created or until the Advertising
2407 * is timed out due to Directed Advertising."
2408 */
2409 if (type == LE_LINK)
f2252570 2410 hci_req_reenable_advertising(hdev);
f7520543
JH		 2411
2412unlock:
04837f64
MH		 2413 hci_dev_unlock(hdev);
2414}
2415
6039aa73 2416static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2417{
a9de9248 2418 struct hci_ev_auth_complete *ev = (void *) skb->data;
04837f64 2419 struct hci_conn *conn;
1da177e4 2420
9f1db00c 2421 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2422
2423 hci_dev_lock(hdev);
2424
04837f64 2425 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
d7556e20
WR		 2426 if (!conn)
2427 goto unlock;
2428
2429 if (!ev->status) {
160b9251
SJ		 2430 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2431
aa64a8b5 2432 if (!hci_conn_ssp_enabled(conn) &&
807deac2 2433 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
d7556e20 2434 BT_INFO("re-auth of legacy device is not possible.");
2a611692 2435 } else {
4dae2798 2436 set_bit(HCI_CONN_AUTH, &conn->flags);
d7556e20 2437 conn->sec_level = conn->pending_sec_level;
2a611692 2438 }
d7556e20 2439 } else {
160b9251
SJ		 2440 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
2441 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
2442
e1e930f5 2443 mgmt_auth_failed(conn, ev->status);
d7556e20 2444 }
1da177e4 2445
51a8efd7
JH		 2446 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2447 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
1da177e4 2448
d7556e20 2449 if (conn->state == BT_CONFIG) {
aa64a8b5 2450 if (!ev->status && hci_conn_ssp_enabled(conn)) {
d7556e20
WR		 2451 struct hci_cp_set_conn_encrypt cp;
2452 cp.handle = ev->handle;
2453 cp.encrypt = 0x01;
2454 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2455 &cp);
052b30b0 2456 } else {
d7556e20 2457 conn->state = BT_CONNECTED;
539c496d 2458 hci_connect_cfm(conn, ev->status);
76a68ba0 2459 hci_conn_drop(conn);
052b30b0 2460 }
d7556e20
WR		 2461 } else {
2462 hci_auth_cfm(conn, ev->status);
052b30b0 2463
d7556e20
WR		 2464 hci_conn_hold(conn);
2465 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 2466 hci_conn_drop(conn);
d7556e20
WR		 2467 }
2468
51a8efd7 2469 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
d7556e20
WR		 2470 if (!ev->status) {
2471 struct hci_cp_set_conn_encrypt cp;
2472 cp.handle = ev->handle;
2473 cp.encrypt = 0x01;
2474 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2475 &cp);
d7556e20 2476 } else {
51a8efd7 2477 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
d7556e20 2478 hci_encrypt_cfm(conn, ev->status, 0x00);
1da177e4
LT		 2479 }
2480 }
2481
d7556e20 2482unlock:
1da177e4
LT		 2483 hci_dev_unlock(hdev);
2484}
2485
6039aa73 2486static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2487{
127178d2
JH		 2488 struct hci_ev_remote_name *ev = (void *) skb->data;
2489 struct hci_conn *conn;
2490
a9de9248 2491 BT_DBG("%s", hdev->name);
1da177e4 2492
a9de9248 2493 hci_conn_check_pending(hdev);
127178d2
JH		 2494
2495 hci_dev_lock(hdev);
2496
b644ba33 2497 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
30dc78e1 2498
d7a5a11d 2499 if (!hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 2500 goto check_auth;
a88a9652 2501
b644ba33
JH		 2502 if (ev->status == 0)
2503 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
04124681 2504 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
b644ba33
JH		 2505 else
2506 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2507
2508check_auth:
79c6c70c
JH		 2509 if (!conn)
2510 goto unlock;
2511
2512 if (!hci_outgoing_auth_needed(hdev, conn))
2513 goto unlock;
2514
51a8efd7 2515 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
127178d2 2516 struct hci_cp_auth_requested cp;
977f8fce
JH		 2517
2518 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2519
127178d2
JH		 2520 cp.handle = __cpu_to_le16(conn->handle);
2521 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2522 }
2523
79c6c70c 2524unlock:
127178d2 2525 hci_dev_unlock(hdev);
a9de9248
MH		 2526}
2527
821f3766
JH		 2528static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
2529 u16 opcode, struct sk_buff *skb)
2530{
2531 const struct hci_rp_read_enc_key_size *rp;
2532 struct hci_conn *conn;
2533 u16 handle;
2534
2535 BT_DBG("%s status 0x%02x", hdev->name, status);
2536
2537 if (!skb || skb->len < sizeof(*rp)) {
2538 BT_ERR("%s invalid HCI Read Encryption Key Size response",
2539 hdev->name);
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) {
2557 BT_ERR("%s failed to read key size for handle %u", hdev->name,
2558 handle);
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)) {
2667 BT_ERR("Sending HCI Read Encryption Key Size failed");
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
AE		 3199 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
3200 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
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:
3252 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3253 break;
a9de9248
MH		 3254 }
3255 }
3256
3eff45ea 3257 queue_work(hdev->workqueue, &hdev->tx_work);
a9de9248
MH		 3258}
3259
76ef7cf7
AE		 3260static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3261 __u16 handle)
3262{
3263 struct hci_chan *chan;
3264
3265 switch (hdev->dev_type) {
ca8bee5d 3266 case HCI_PRIMARY:
76ef7cf7
AE		 3267 return hci_conn_hash_lookup_handle(hdev, handle);
3268 case HCI_AMP:
3269 chan = hci_chan_lookup_handle(hdev, handle);
3270 if (chan)
3271 return chan->conn;
3272 break;
3273 default:
3274 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
3275 break;
3276 }
3277
3278 return NULL;
3279}
3280
6039aa73 3281static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
25e89e99
AE		 3282{
3283 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3284 int i;
3285
3286 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3287 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3288 return;
3289 }
3290
3291 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
807deac2 3292 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
25e89e99
AE		 3293 BT_DBG("%s bad parameters", hdev->name);
3294 return;
3295 }
3296
3297 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
807deac2 3298 ev->num_hndl);
25e89e99
AE		 3299
3300 for (i = 0; i < ev->num_hndl; i++) {
3301 struct hci_comp_blocks_info *info = &ev->handles[i];
76ef7cf7 3302 struct hci_conn *conn = NULL;
25e89e99
AE		 3303 __u16 handle, block_count;
3304
3305 handle = __le16_to_cpu(info->handle);
3306 block_count = __le16_to_cpu(info->blocks);
3307
76ef7cf7 3308 conn = __hci_conn_lookup_handle(hdev, handle);
25e89e99
AE		 3309 if (!conn)
3310 continue;
3311
3312 conn->sent -= block_count;
3313
3314 switch (conn->type) {
3315 case ACL_LINK:
bd1eb66b 3316 case AMP_LINK:
25e89e99
AE		 3317 hdev->block_cnt += block_count;
3318 if (hdev->block_cnt > hdev->num_blocks)
3319 hdev->block_cnt = hdev->num_blocks;
3320 break;
3321
3322 default:
3323 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3324 break;
3325 }
3326 }
3327
3328 queue_work(hdev->workqueue, &hdev->tx_work);
3329}
3330
6039aa73 3331static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
04837f64 3332{
a9de9248 3333 struct hci_ev_mode_change *ev = (void *) skb->data;
04837f64
MH		 3334 struct hci_conn *conn;
3335
9f1db00c 3336 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
04837f64
MH		 3337
3338 hci_dev_lock(hdev);
3339
3340 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
a9de9248
MH		 3341 if (conn) {
3342 conn->mode = ev->mode;
a9de9248 3343
8fc9ced3
GP		 3344 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3345 &conn->flags)) {
a9de9248 3346 if (conn->mode == HCI_CM_ACTIVE)
58a681ef 3347 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3348 else
58a681ef 3349 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3350 }
e73439d8 3351
51a8efd7 3352 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8 3353 hci_sco_setup(conn, ev->status);
04837f64
MH		 3354 }
3355
3356 hci_dev_unlock(hdev);
3357}
3358
6039aa73 3359static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3360{
052b30b0
MH		 3361 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3362 struct hci_conn *conn;
3363
a9de9248 3364 BT_DBG("%s", hdev->name);
052b30b0
MH		 3365
3366 hci_dev_lock(hdev);
3367
3368 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
b6f98044
WR		 3369 if (!conn)
3370 goto unlock;
3371
3372 if (conn->state == BT_CONNECTED) {
052b30b0
MH		 3373 hci_conn_hold(conn);
3374 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
76a68ba0 3375 hci_conn_drop(conn);
052b30b0
MH		 3376 }
3377
d7a5a11d 3378 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
2f407f0a 3379 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
03b555e1 3380 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
807deac2 3381 sizeof(ev->bdaddr), &ev->bdaddr);
d7a5a11d 3382 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
a770bb5a
WR		 3383 u8 secure;
3384
3385 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3386 secure = 1;
3387 else
3388 secure = 0;
3389
744cf19e 3390 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
a770bb5a 3391 }
980e1a53 3392
b6f98044 3393unlock:
052b30b0 3394 hci_dev_unlock(hdev);
a9de9248
MH		 3395}
3396
cb6f3f7a
JH		 3397static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3398{
3399 if (key_type == HCI_LK_CHANGED_COMBINATION)
3400 return;
3401
3402 conn->pin_length = pin_len;
3403 conn->key_type = key_type;
3404
3405 switch (key_type) {
3406 case HCI_LK_LOCAL_UNIT:
3407 case HCI_LK_REMOTE_UNIT:
3408 case HCI_LK_DEBUG_COMBINATION:
3409 return;
3410 case HCI_LK_COMBINATION:
3411 if (pin_len == 16)
3412 conn->pending_sec_level = BT_SECURITY_HIGH;
3413 else
3414 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3415 break;
3416 case HCI_LK_UNAUTH_COMBINATION_P192:
3417 case HCI_LK_UNAUTH_COMBINATION_P256:
3418 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3419 break;
3420 case HCI_LK_AUTH_COMBINATION_P192:
3421 conn->pending_sec_level = BT_SECURITY_HIGH;
3422 break;
3423 case HCI_LK_AUTH_COMBINATION_P256:
3424 conn->pending_sec_level = BT_SECURITY_FIPS;
3425 break;
3426 }
3427}
3428
6039aa73 3429static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3430{
55ed8ca1
JH		 3431 struct hci_ev_link_key_req *ev = (void *) skb->data;
3432 struct hci_cp_link_key_reply cp;
3433 struct hci_conn *conn;
3434 struct link_key *key;
3435
a9de9248 3436 BT_DBG("%s", hdev->name);
55ed8ca1 3437
d7a5a11d 3438 if (!hci_dev_test_flag(hdev, HCI_MGMT))
55ed8ca1
JH		 3439 return;
3440
3441 hci_dev_lock(hdev);
3442
3443 key = hci_find_link_key(hdev, &ev->bdaddr);
3444 if (!key) {
6ed93dc6
AE		 3445 BT_DBG("%s link key not found for %pMR", hdev->name,
3446 &ev->bdaddr);
55ed8ca1
JH		 3447 goto not_found;
3448 }
3449
6ed93dc6
AE		 3450 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3451 &ev->bdaddr);
55ed8ca1 3452
55ed8ca1 3453 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
60b83f57 3454 if (conn) {
fe8bc5ac
JH		 3455 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3456
66138ce8
MH		 3457 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3458 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
807deac2 3459 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
60b83f57
WR		 3460 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3461 goto not_found;
3462 }
55ed8ca1 3463
60b83f57 3464 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
f3fb0b58
JH		 3465 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3466 conn->pending_sec_level == BT_SECURITY_FIPS)) {
8fc9ced3
GP		 3467 BT_DBG("%s ignoring key unauthenticated for high security",
3468 hdev->name);
60b83f57
WR		 3469 goto not_found;
3470 }
3471
cb6f3f7a 3472 conn_set_key(conn, key->type, key->pin_len);
55ed8ca1
JH		 3473 }
3474
3475 bacpy(&cp.bdaddr, &ev->bdaddr);
9b3b4460 3476 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
55ed8ca1
JH		 3477
3478 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3479
3480 hci_dev_unlock(hdev);
3481
3482 return;
3483
3484not_found:
3485 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3486 hci_dev_unlock(hdev);
a9de9248
MH		 3487}
3488
6039aa73 3489static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3490{
052b30b0
MH		 3491 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3492 struct hci_conn *conn;
7652ff6a
JH		 3493 struct link_key *key;
3494 bool persistent;
55ed8ca1 3495 u8 pin_len = 0;
052b30b0 3496
a9de9248 3497 BT_DBG("%s", hdev->name);
052b30b0
MH		 3498
3499 hci_dev_lock(hdev);
3500
3501 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
82c13d42
JH		 3502 if (!conn)
3503 goto unlock;
3504
3505 hci_conn_hold(conn);
3506 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3507 hci_conn_drop(conn);
3508
fe8bc5ac 3509 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
82c13d42 3510 conn_set_key(conn, ev->key_type, conn->pin_length);
052b30b0 3511
d7a5a11d 3512 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7652ff6a
JH		 3513 goto unlock;
3514
3515 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3516 ev->key_type, pin_len, &persistent);
3517 if (!key)
3518 goto unlock;
3519
cb6f3f7a
JH		 3520 /* Update connection information since adding the key will have
3521 * fixed up the type in the case of changed combination keys.
3522 */
3523 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3524 conn_set_key(conn, key->type, key->pin_len);
3525
7652ff6a 3526 mgmt_new_link_key(hdev, key, persistent);
55ed8ca1 3527
6d5650c4
JH		 3528 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3529 * is set. If it's not set simply remove the key from the kernel
3530 * list (we've still notified user space about it but with
3531 * store_hint being 0).
3532 */
3533 if (key->type == HCI_LK_DEBUG_COMBINATION &&
d7a5a11d 3534 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
0378b597
JH		 3535 list_del_rcu(&key->list);
3536 kfree_rcu(key, rcu);
82c13d42 3537 goto unlock;
6d5650c4 3538 }
7652ff6a 3539
82c13d42
JH		 3540 if (persistent)
3541 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3542 else
3543 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3544
7652ff6a 3545unlock:
052b30b0 3546 hci_dev_unlock(hdev);
a9de9248
MH		 3547}
3548
6039aa73 3549static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 3550{
a9de9248 3551 struct hci_ev_clock_offset *ev = (void *) skb->data;
04837f64 3552 struct hci_conn *conn;
1da177e4 3553
9f1db00c 3554 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 3555
3556 hci_dev_lock(hdev);
3557
04837f64 3558 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 3559 if (conn && !ev->status) {
3560 struct inquiry_entry *ie;
3561
cc11b9c1
AE		 3562 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3563 if (ie) {
1da177e4
LT		 3564 ie->data.clock_offset = ev->clock_offset;
3565 ie->timestamp = jiffies;
3566 }
3567 }
3568
3569 hci_dev_unlock(hdev);
3570}
3571
6039aa73 3572static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a8746417
MH		 3573{
3574 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3575 struct hci_conn *conn;
3576
9f1db00c 3577 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a8746417
MH		 3578
3579 hci_dev_lock(hdev);
3580
3581 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3582 if (conn && !ev->status)
3583 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3584
3585 hci_dev_unlock(hdev);
3586}
3587
6039aa73 3588static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
85a1e930 3589{
a9de9248 3590 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
85a1e930
MH		 3591 struct inquiry_entry *ie;
3592
3593 BT_DBG("%s", hdev->name);
3594
3595 hci_dev_lock(hdev);
3596
cc11b9c1
AE		 3597 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3598 if (ie) {
85a1e930
MH		 3599 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3600 ie->timestamp = jiffies;
3601 }
3602
3603 hci_dev_unlock(hdev);
3604}
3605
6039aa73
GP		 3606static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3607 struct sk_buff *skb)
a9de9248
MH		 3608{
3609 struct inquiry_data data;
3610 int num_rsp = *((__u8 *) skb->data);
3611
3612 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3613
3614 if (!num_rsp)
3615 return;
3616
d7a5a11d 3617 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3618 return;
3619
a9de9248
MH		 3620 hci_dev_lock(hdev);
3621
3622 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
138d22ef
SJ		 3623 struct inquiry_info_with_rssi_and_pscan_mode *info;
3624 info = (void *) (skb->data + 1);
a9de9248 3625
e17acd40 3626 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3627 u32 flags;
3628
a9de9248
MH		 3629 bacpy(&data.bdaddr, &info->bdaddr);
3630 data.pscan_rep_mode = info->pscan_rep_mode;
3631 data.pscan_period_mode = info->pscan_period_mode;
3632 data.pscan_mode = info->pscan_mode;
3633 memcpy(data.dev_class, info->dev_class, 3);
3634 data.clock_offset = info->clock_offset;
3635 data.rssi = info->rssi;
41a96212 3636 data.ssp_mode = 0x00;
3175405b 3637
af58925c
MH		 3638 flags = hci_inquiry_cache_update(hdev, &data, false);
3639
48264f06 3640 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3641 info->dev_class, info->rssi,
af58925c 3642 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3643 }
3644 } else {
3645 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3646
e17acd40 3647 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3648 u32 flags;
3649
a9de9248
MH		 3650 bacpy(&data.bdaddr, &info->bdaddr);
3651 data.pscan_rep_mode = info->pscan_rep_mode;
3652 data.pscan_period_mode = info->pscan_period_mode;
3653 data.pscan_mode = 0x00;
3654 memcpy(data.dev_class, info->dev_class, 3);
3655 data.clock_offset = info->clock_offset;
3656 data.rssi = info->rssi;
41a96212 3657 data.ssp_mode = 0x00;
af58925c
MH		 3658
3659 flags = hci_inquiry_cache_update(hdev, &data, false);
3660
48264f06 3661 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3662 info->dev_class, info->rssi,
af58925c 3663 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3664 }
3665 }
3666
3667 hci_dev_unlock(hdev);
3668}
3669
6039aa73
GP		 3670static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3671 struct sk_buff *skb)
a9de9248 3672{
41a96212
MH		 3673 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3674 struct hci_conn *conn;
3675
a9de9248 3676 BT_DBG("%s", hdev->name);
41a96212 3677
41a96212
MH		 3678 hci_dev_lock(hdev);
3679
3680 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 3681 if (!conn)
3682 goto unlock;
41a96212 3683
cad718ed
JH		 3684 if (ev->page < HCI_MAX_PAGES)
3685 memcpy(conn->features[ev->page], ev->features, 8);
3686
ccd556fe
JH		 3687 if (!ev->status && ev->page == 0x01) {
3688 struct inquiry_entry *ie;
41a96212 3689
cc11b9c1
AE		 3690 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3691 if (ie)
02b7cc62 3692 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
769be974 3693
bbb0eada 3694 if (ev->features[0] & LMP_HOST_SSP) {
58a681ef 3695 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
bbb0eada
JK		 3696 } else {
3697 /* It is mandatory by the Bluetooth specification that
3698 * Extended Inquiry Results are only used when Secure
3699 * Simple Pairing is enabled, but some devices violate
3700 * this.
3701 *
3702 * To make these devices work, the internal SSP
3703 * enabled flag needs to be cleared if the remote host
3704 * features do not indicate SSP support */
3705 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3706 }
eb9a8f3f
MH		 3707
3708 if (ev->features[0] & LMP_HOST_SC)
3709 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
ccd556fe
JH		 3710 }
3711
3712 if (conn->state != BT_CONFIG)
3713 goto unlock;
3714
671267bf 3715 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 3716 struct hci_cp_remote_name_req cp;
3717 memset(&cp, 0, sizeof(cp));
3718 bacpy(&cp.bdaddr, &conn->dst);
3719 cp.pscan_rep_mode = 0x02;
3720 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 3721 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 3722 mgmt_device_connected(hdev, conn, 0, NULL, 0);
392599b9 3723
127178d2 3724 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 3725 conn->state = BT_CONNECTED;
539c496d 3726 hci_connect_cfm(conn, ev->status);
76a68ba0 3727 hci_conn_drop(conn);
41a96212
MH		 3728 }
3729
ccd556fe 3730unlock:
41a96212 3731 hci_dev_unlock(hdev);
a9de9248
MH		 3732}
3733
6039aa73
GP		 3734static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3735 struct sk_buff *skb)
a9de9248 3736{
b6a0dc82
MH		 3737 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3738 struct hci_conn *conn;
3739
9f1db00c 3740 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
b6a0dc82
MH		 3741
3742 hci_dev_lock(hdev);
3743
3744 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9dc0a3af
MH		 3745 if (!conn) {
3746 if (ev->link_type == ESCO_LINK)
3747 goto unlock;
3748
618353b1
KP		 3749 /* When the link type in the event indicates SCO connection
3750 * and lookup of the connection object fails, then check
3751 * if an eSCO connection object exists.
3752 *
3753 * The core limits the synchronous connections to either
3754 * SCO or eSCO. The eSCO connection is preferred and tried
3755 * to be setup first and until successfully established,
3756 * the link type will be hinted as eSCO.
3757 */
9dc0a3af
MH		 3758 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3759 if (!conn)
3760 goto unlock;
9dc0a3af 3761 }
b6a0dc82 3762
732547f9
MH		 3763 switch (ev->status) {
3764 case 0x00:
b6a0dc82
MH		 3765 conn->handle = __le16_to_cpu(ev->handle);
3766 conn->state = BT_CONNECTED;
618353b1 3767 conn->type = ev->link_type;
7d0db0a3 3768
23b9ceb7 3769 hci_debugfs_create_conn(conn);
7d0db0a3 3770 hci_conn_add_sysfs(conn);
732547f9
MH		 3771 break;
3772
81218d20 3773 case 0x10: /* Connection Accept Timeout */
1a4c958c 3774 case 0x0d: /* Connection Rejected due to Limited Resources */
705e5711 3775 case 0x11: /* Unsupported Feature or Parameter Value */
732547f9 3776 case 0x1c: /* SCO interval rejected */
1038a00b 3777 case 0x1a: /* Unsupported Remote Feature */
732547f9 3778 case 0x1f: /* Unspecified error */
27539bc4 3779 case 0x20: /* Unsupported LMP Parameter value */
2dea632f 3780 if (conn->out) {
732547f9
MH		 3781 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3782 (hdev->esco_type & EDR_ESCO_MASK);
2dea632f
FD		 3783 if (hci_setup_sync(conn, conn->link->handle))
3784 goto unlock;
732547f9
MH		 3785 }
3786 /* fall through */
3787
3788 default:
b6a0dc82 3789 conn->state = BT_CLOSED;
732547f9
MH		 3790 break;
3791 }
b6a0dc82 3792
539c496d 3793 hci_connect_cfm(conn, ev->status);
b6a0dc82
MH		 3794 if (ev->status)
3795 hci_conn_del(conn);
3796
3797unlock:
3798 hci_dev_unlock(hdev);
a9de9248
MH		 3799}
3800
efdcf8e3
MH		 3801static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3802{
3803 size_t parsed = 0;
3804
3805 while (parsed < eir_len) {
3806 u8 field_len = eir[0];
3807
3808 if (field_len == 0)
3809 return parsed;
3810
3811 parsed += field_len + 1;
3812 eir += field_len + 1;
3813 }
3814
3815 return eir_len;
3816}
3817
6039aa73
GP		 3818static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3819 struct sk_buff *skb)
1da177e4 3820{
a9de9248
MH		 3821 struct inquiry_data data;
3822 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3823 int num_rsp = *((__u8 *) skb->data);
9d939d94 3824 size_t eir_len;
1da177e4 3825
a9de9248 3826 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1da177e4 3827
a9de9248
MH		 3828 if (!num_rsp)
3829 return;
1da177e4 3830
d7a5a11d 3831 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3832 return;
3833
a9de9248
MH		 3834 hci_dev_lock(hdev);
3835
e17acd40 3836 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3837 u32 flags;
3838 bool name_known;
561aafbc 3839
a9de9248 3840 bacpy(&data.bdaddr, &info->bdaddr);
138d22ef
SJ		 3841 data.pscan_rep_mode = info->pscan_rep_mode;
3842 data.pscan_period_mode = info->pscan_period_mode;
3843 data.pscan_mode = 0x00;
a9de9248 3844 memcpy(data.dev_class, info->dev_class, 3);
138d22ef
SJ		 3845 data.clock_offset = info->clock_offset;
3846 data.rssi = info->rssi;
41a96212 3847 data.ssp_mode = 0x01;
561aafbc 3848
d7a5a11d 3849 if (hci_dev_test_flag(hdev, HCI_MGMT))
0d3b7f64
JH		 3850 name_known = eir_get_data(info->data,
3851 sizeof(info->data),
3852 EIR_NAME_COMPLETE, NULL);
561aafbc
JH		 3853 else
3854 name_known = true;
3855
af58925c
MH		 3856 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3857
9d939d94 3858 eir_len = eir_get_length(info->data, sizeof(info->data));
af58925c 3859
48264f06 3860 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
af58925c
MH		 3861 info->dev_class, info->rssi,
3862 flags, info->data, eir_len, NULL, 0);
a9de9248
MH		 3863 }
3864
3865 hci_dev_unlock(hdev);
3866}
1da177e4 3867
1c2e0041
JH		 3868static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3869 struct sk_buff *skb)
3870{
3871 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3872 struct hci_conn *conn;
3873
9f1db00c 3874 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
1c2e0041
JH		 3875 __le16_to_cpu(ev->handle));
3876
3877 hci_dev_lock(hdev);
3878
3879 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3880 if (!conn)
3881 goto unlock;
3882
9eb1fbfa
JH		 3883 /* For BR/EDR the necessary steps are taken through the
3884 * auth_complete event.
3885 */
3886 if (conn->type != LE_LINK)
3887 goto unlock;
3888
1c2e0041
JH		 3889 if (!ev->status)
3890 conn->sec_level = conn->pending_sec_level;
3891
3892 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3893
3894 if (ev->status && conn->state == BT_CONNECTED) {
bed71748 3895 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
76a68ba0 3896 hci_conn_drop(conn);
1c2e0041
JH		 3897 goto unlock;
3898 }
3899
3900 if (conn->state == BT_CONFIG) {
3901 if (!ev->status)
3902 conn->state = BT_CONNECTED;
3903
539c496d 3904 hci_connect_cfm(conn, ev->status);
76a68ba0 3905 hci_conn_drop(conn);
1c2e0041
JH		 3906 } else {
3907 hci_auth_cfm(conn, ev->status);
3908
3909 hci_conn_hold(conn);
3910 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 3911 hci_conn_drop(conn);
1c2e0041
JH		 3912 }
3913
3914unlock:
3915 hci_dev_unlock(hdev);
3916}
3917
6039aa73 3918static u8 hci_get_auth_req(struct hci_conn *conn)
17fa4b9d 3919{
17fa4b9d 3920 /* If remote requests no-bonding follow that lead */
acabae96
MA		 3921 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3922 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
58797bf7 3923 return conn->remote_auth | (conn->auth_type & 0x01);
17fa4b9d 3924
b7f94c88
MA		 3925 /* If both remote and local have enough IO capabilities, require
3926 * MITM protection
3927 */
3928 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3929 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3930 return conn->remote_auth | 0x01;
3931
7e74170a
TM		 3932 /* No MITM protection possible so ignore remote requirement */
3933 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
17fa4b9d
JH		 3934}
3935
a83ed81e
MH		 3936static u8 bredr_oob_data_present(struct hci_conn *conn)
3937{
3938 struct hci_dev *hdev = conn->hdev;
3939 struct oob_data *data;
3940
3941 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
3942 if (!data)
3943 return 0x00;
3944
455c2ff0
MH		 3945 if (bredr_sc_enabled(hdev)) {
3946 /* When Secure Connections is enabled, then just
3947 * return the present value stored with the OOB
3948 * data. The stored value contains the right present
3949 * information. However it can only be trusted when
3950 * not in Secure Connection Only mode.
3951 */
3952 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
3953 return data->present;
659c7fb0 3954
455c2ff0
MH		 3955 /* When Secure Connections Only mode is enabled, then
3956 * the P-256 values are required. If they are not
3957 * available, then do not declare that OOB data is
3958 * present.
659c7fb0 3959 */
455c2ff0
MH		 3960 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
3961 !memcmp(data->hash256, ZERO_KEY, 16))
659c7fb0
MH		 3962 return 0x00;
3963
455c2ff0 3964 return 0x02;
659c7fb0 3965 }
a83ed81e 3966
455c2ff0
MH		 3967 /* When Secure Connections is not enabled or actually
3968 * not supported by the hardware, then check that if
3969 * P-192 data values are present.
3970 */
3971 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
3972 !memcmp(data->hash192, ZERO_KEY, 16))
3973 return 0x00;
3974
3975 return 0x01;
a83ed81e
MH		 3976}
3977
6039aa73 3978static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
0493684e
MH		 3979{
3980 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3981 struct hci_conn *conn;
3982
3983 BT_DBG("%s", hdev->name);
3984
3985 hci_dev_lock(hdev);
3986
3987 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
03b555e1
JH		 3988 if (!conn)
3989 goto unlock;
3990
3991 hci_conn_hold(conn);
3992
d7a5a11d 3993 if (!hci_dev_test_flag(hdev, HCI_MGMT))
03b555e1
JH		 3994 goto unlock;
3995
2f407f0a
JH		 3996 /* Allow pairing if we're pairable, the initiators of the
3997 * pairing or if the remote is not requesting bonding.
3998 */
d7a5a11d 3999 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
2f407f0a 4000 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
807deac2 4001 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
17fa4b9d
JH		 4002 struct hci_cp_io_capability_reply cp;
4003
4004 bacpy(&cp.bdaddr, &ev->bdaddr);
7a7f1e7c
HG		 4005 /* Change the IO capability from KeyboardDisplay
4006 * to DisplayYesNo as it is not supported by BT spec. */
4007 cp.capability = (conn->io_capability == 0x04) ?
a767631a 4008 HCI_IO_DISPLAY_YESNO : conn->io_capability;
b7f94c88
MA		 4009
4010 /* If we are initiators, there is no remote information yet */
4011 if (conn->remote_auth == 0xff) {
b16c6604 4012 /* Request MITM protection if our IO caps allow it
4ad51a75 4013 * except for the no-bonding case.
b16c6604 4014 */
6fd6b915 4015 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
9f743d74 4016 conn->auth_type != HCI_AT_NO_BONDING)
6c53823a 4017 conn->auth_type |= 0x01;
b7f94c88
MA		 4018 } else {
4019 conn->auth_type = hci_get_auth_req(conn);
b7f94c88 4020 }
17fa4b9d 4021
82c295b1
JH		 4022 /* If we're not bondable, force one of the non-bondable
4023 * authentication requirement values.
4024 */
d7a5a11d 4025 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
82c295b1
JH		 4026 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
4027
4028 cp.authentication = conn->auth_type;
a83ed81e 4029 cp.oob_data = bredr_oob_data_present(conn);
ce85ee13 4030
17fa4b9d 4031 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
807deac2 4032 sizeof(cp), &cp);
03b555e1
JH		 4033 } else {
4034 struct hci_cp_io_capability_neg_reply cp;
4035
4036 bacpy(&cp.bdaddr, &ev->bdaddr);
9f5a0d7b 4037 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
0493684e 4038
03b555e1 4039 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
807deac2 4040 sizeof(cp), &cp);
03b555e1
JH		 4041 }
4042
4043unlock:
4044 hci_dev_unlock(hdev);
4045}
4046
6039aa73 4047static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
03b555e1
JH		 4048{
4049 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
4050 struct hci_conn *conn;
4051
4052 BT_DBG("%s", hdev->name);
4053
4054 hci_dev_lock(hdev);
4055
4056 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4057 if (!conn)
4058 goto unlock;
4059
03b555e1 4060 conn->remote_cap = ev->capability;
03b555e1
JH		 4061 conn->remote_auth = ev->authentication;
4062
4063unlock:
0493684e
MH		 4064 hci_dev_unlock(hdev);
4065}
4066
6039aa73
GP		 4067static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4068 struct sk_buff *skb)
a5c29683
JH		 4069{
4070 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
55bc1a37 4071 int loc_mitm, rem_mitm, confirm_hint = 0;
7a828908 4072 struct hci_conn *conn;
a5c29683
JH		 4073
4074 BT_DBG("%s", hdev->name);
4075
4076 hci_dev_lock(hdev);
4077
d7a5a11d 4078 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7a828908 4079 goto unlock;
a5c29683 4080
7a828908
JH		 4081 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4082 if (!conn)
4083 goto unlock;
4084
4085 loc_mitm = (conn->auth_type & 0x01);
4086 rem_mitm = (conn->remote_auth & 0x01);
4087
4088 /* If we require MITM but the remote device can't provide that
6c53823a
JH		 4089 * (it has NoInputNoOutput) then reject the confirmation
4090 * request. We check the security level here since it doesn't
4091 * necessarily match conn->auth_type.
6fd6b915 4092 */
6c53823a
JH		 4093 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4094 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
7a828908
JH		 4095 BT_DBG("Rejecting request: remote device can't provide MITM");
4096 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
807deac2 4097 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4098 goto unlock;
4099 }
4100
4101 /* If no side requires MITM protection; auto-accept */
a767631a
MA		 4102 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4103 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
55bc1a37
JH		 4104
4105 /* If we're not the initiators request authorization to
4106 * proceed from user space (mgmt_user_confirm with
ba15a58b 4107 * confirm_hint set to 1). The exception is if neither
02f3e254
JH		 4108 * side had MITM or if the local IO capability is
4109 * NoInputNoOutput, in which case we do auto-accept
ba15a58b
JH		 4110 */
4111 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
02f3e254 4112 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
ba15a58b 4113 (loc_mitm || rem_mitm)) {
55bc1a37
JH		 4114 BT_DBG("Confirming auto-accept as acceptor");
4115 confirm_hint = 1;
4116 goto confirm;
4117 }
4118
9f61656a 4119 BT_DBG("Auto-accept of user confirmation with %ums delay",
807deac2 4120 hdev->auto_accept_delay);
9f61656a
JH		 4121
4122 if (hdev->auto_accept_delay > 0) {
4123 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
7bc18d9d
JH		 4124 queue_delayed_work(conn->hdev->workqueue,
4125 &conn->auto_accept_work, delay);
9f61656a
JH		 4126 goto unlock;
4127 }
4128
7a828908 4129 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
807deac2 4130 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4131 goto unlock;
4132 }
4133
55bc1a37 4134confirm:
39adbffe
JH		 4135 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4136 le32_to_cpu(ev->passkey), confirm_hint);
7a828908
JH		 4137
4138unlock:
a5c29683
JH		 4139 hci_dev_unlock(hdev);
4140}
4141
6039aa73
GP		 4142static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4143 struct sk_buff *skb)
1143d458
BG		 4144{
4145 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4146
4147 BT_DBG("%s", hdev->name);
4148
d7a5a11d 4149 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 4150 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
1143d458
BG		 4151}
4152
92a25256
JH		 4153static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4154 struct sk_buff *skb)
4155{
4156 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4157 struct hci_conn *conn;
4158
4159 BT_DBG("%s", hdev->name);
4160
4161 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4162 if (!conn)
4163 return;
4164
4165 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4166 conn->passkey_entered = 0;
4167
d7a5a11d 4168 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4169 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4170 conn->dst_type, conn->passkey_notify,
4171 conn->passkey_entered);
4172}
4173
4174static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4175{
4176 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4177 struct hci_conn *conn;
4178
4179 BT_DBG("%s", hdev->name);
4180
4181 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4182 if (!conn)
4183 return;
4184
4185 switch (ev->type) {
4186 case HCI_KEYPRESS_STARTED:
4187 conn->passkey_entered = 0;
4188 return;
4189
4190 case HCI_KEYPRESS_ENTERED:
4191 conn->passkey_entered++;
4192 break;
4193
4194 case HCI_KEYPRESS_ERASED:
4195 conn->passkey_entered--;
4196 break;
4197
4198 case HCI_KEYPRESS_CLEARED:
4199 conn->passkey_entered = 0;
4200 break;
4201
4202 case HCI_KEYPRESS_COMPLETED:
4203 return;
4204 }
4205
d7a5a11d 4206 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4207 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4208 conn->dst_type, conn->passkey_notify,
4209 conn->passkey_entered);
4210}
4211
6039aa73
GP		 4212static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4213 struct sk_buff *skb)
0493684e
MH		 4214{
4215 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4216 struct hci_conn *conn;
4217
4218 BT_DBG("%s", hdev->name);
4219
4220 hci_dev_lock(hdev);
4221
4222 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2a611692
JH		 4223 if (!conn)
4224 goto unlock;
4225
c1d4fa7a
JH		 4226 /* Reset the authentication requirement to unknown */
4227 conn->remote_auth = 0xff;
4228
2a611692
JH		 4229 /* To avoid duplicate auth_failed events to user space we check
4230 * the HCI_CONN_AUTH_PEND flag which will be set if we
4231 * initiated the authentication. A traditional auth_complete
4232 * event gets always produced as initiator and is also mapped to
4233 * the mgmt_auth_failed event */
fa1bd918 4234 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
e1e930f5 4235 mgmt_auth_failed(conn, ev->status);
0493684e 4236
76a68ba0 4237 hci_conn_drop(conn);
2a611692
JH		 4238
4239unlock:
0493684e
MH		 4240 hci_dev_unlock(hdev);
4241}
4242
6039aa73
GP		 4243static void hci_remote_host_features_evt(struct hci_dev *hdev,
4244 struct sk_buff *skb)
41a96212
MH		 4245{
4246 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4247 struct inquiry_entry *ie;
cad718ed 4248 struct hci_conn *conn;
41a96212
MH		 4249
4250 BT_DBG("%s", hdev->name);
4251
4252 hci_dev_lock(hdev);
4253
cad718ed
JH		 4254 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4255 if (conn)
4256 memcpy(conn->features[1], ev->features, 8);
4257
cc11b9c1
AE		 4258 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4259 if (ie)
02b7cc62 4260 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
41a96212
MH		 4261
4262 hci_dev_unlock(hdev);
4263}
4264
6039aa73
GP		 4265static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4266 struct sk_buff *skb)
2763eda6
SJ		 4267{
4268 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4269 struct oob_data *data;
4270
4271 BT_DBG("%s", hdev->name);
4272
4273 hci_dev_lock(hdev);
4274
d7a5a11d 4275 if (!hci_dev_test_flag(hdev, HCI_MGMT))
e1ba1f15
SJ		 4276 goto unlock;
4277
6928a924 4278 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
6665d057
MH		 4279 if (!data) {
4280 struct hci_cp_remote_oob_data_neg_reply cp;
519ca9d0 4281
6665d057
MH		 4282 bacpy(&cp.bdaddr, &ev->bdaddr);
4283 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4284 sizeof(cp), &cp);
4285 goto unlock;
4286 }
2763eda6 4287
6665d057
MH		 4288 if (bredr_sc_enabled(hdev)) {
4289 struct hci_cp_remote_oob_ext_data_reply cp;
519ca9d0 4290
6665d057 4291 bacpy(&cp.bdaddr, &ev->bdaddr);
d7a5a11d 4292 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6665d057
MH		 4293 memset(cp.hash192, 0, sizeof(cp.hash192));
4294 memset(cp.rand192, 0, sizeof(cp.rand192));
4295 } else {
4296 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4297 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
519ca9d0 4298 }
6665d057
MH		 4299 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4300 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4301
4302 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4303 sizeof(cp), &cp);
2763eda6 4304 } else {
6665d057 4305 struct hci_cp_remote_oob_data_reply cp;
2763eda6
SJ		 4306
4307 bacpy(&cp.bdaddr, &ev->bdaddr);
6665d057
MH		 4308 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4309 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4310
4311 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
519ca9d0 4312 sizeof(cp), &cp);
2763eda6
SJ		 4313 }
4314
e1ba1f15 4315unlock:
2763eda6
SJ		 4316 hci_dev_unlock(hdev);
4317}
4318
a77a6a14
AW		 4319#if IS_ENABLED(CONFIG_BT_HS)
4320static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4321{
4322 struct hci_ev_channel_selected *ev = (void *)skb->data;
4323 struct hci_conn *hcon;
4324
4325 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4326
4327 skb_pull(skb, sizeof(*ev));
4328
4329 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4330 if (!hcon)
4331 return;
4332
4333 amp_read_loc_assoc_final_data(hdev, hcon);
4334}
4335
d5e91192
AE		 4336static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4337 struct sk_buff *skb)
4338{
4339 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4340 struct hci_conn *hcon, *bredr_hcon;
4341
4342 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4343 ev->status);
4344
4345 hci_dev_lock(hdev);
4346
4347 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4348 if (!hcon) {
4349 hci_dev_unlock(hdev);
4350 return;
4351 }
4352
4353 if (ev->status) {
4354 hci_conn_del(hcon);
4355 hci_dev_unlock(hdev);
4356 return;
4357 }
4358
4359 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4360
4361 hcon->state = BT_CONNECTED;
4362 bacpy(&hcon->dst, &bredr_hcon->dst);
4363
4364 hci_conn_hold(hcon);
4365 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 4366 hci_conn_drop(hcon);
d5e91192 4367
23b9ceb7 4368 hci_debugfs_create_conn(hcon);
d5e91192
AE		 4369 hci_conn_add_sysfs(hcon);
4370
cf70ff22 4371 amp_physical_cfm(bredr_hcon, hcon);
d5e91192 4372
cf70ff22 4373 hci_dev_unlock(hdev);
d5e91192
AE		 4374}
4375
27695fb4
AE		 4376static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4377{
4378 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4379 struct hci_conn *hcon;
4380 struct hci_chan *hchan;
4381 struct amp_mgr *mgr;
4382
4383 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4384 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4385 ev->status);
4386
4387 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4388 if (!hcon)
4389 return;
4390
4391 /* Create AMP hchan */
4392 hchan = hci_chan_create(hcon);
4393 if (!hchan)
4394 return;
4395
4396 hchan->handle = le16_to_cpu(ev->handle);
4397
4398 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4399
4400 mgr = hcon->amp_mgr;
4401 if (mgr && mgr->bredr_chan) {
4402 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4403
4404 l2cap_chan_lock(bredr_chan);
4405
4406 bredr_chan->conn->mtu = hdev->block_mtu;
4407 l2cap_logical_cfm(bredr_chan, hchan, 0);
4408 hci_conn_hold(hcon);
4409
4410 l2cap_chan_unlock(bredr_chan);
4411 }
4412}
4413
606e2a10
AE		 4414static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4415 struct sk_buff *skb)
4416{
4417 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4418 struct hci_chan *hchan;
4419
4420 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4421 le16_to_cpu(ev->handle), ev->status);
4422
4423 if (ev->status)
4424 return;
4425
4426 hci_dev_lock(hdev);
4427
4428 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4429 if (!hchan)
4430 goto unlock;
4431
4432 amp_destroy_logical_link(hchan, ev->reason);
4433
4434unlock:
4435 hci_dev_unlock(hdev);
4436}
4437
9eef6b3a
AE		 4438static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4439 struct sk_buff *skb)
4440{
4441 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4442 struct hci_conn *hcon;
4443
4444 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4445
4446 if (ev->status)
4447 return;
4448
4449 hci_dev_lock(hdev);
4450
4451 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4452 if (hcon) {
4453 hcon->state = BT_CLOSED;
4454 hci_conn_del(hcon);
4455 }
4456
4457 hci_dev_unlock(hdev);
4458}
a77a6a14 4459#endif
9eef6b3a 4460
6039aa73 4461static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 4462{
4463 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
912b42ef 4464 struct hci_conn_params *params;
fcd89c09 4465 struct hci_conn *conn;
68d6f6de 4466 struct smp_irk *irk;
837d502e 4467 u8 addr_type;
fcd89c09 4468
9f1db00c 4469 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
fcd89c09
VT		 4470
4471 hci_dev_lock(hdev);
4472
fbd96c15
JH		 4473 /* All controllers implicitly stop advertising in the event of a
4474 * connection, so ensure that the state bit is cleared.
4475 */
a358dc11 4476 hci_dev_clear_flag(hdev, HCI_LE_ADV);
fbd96c15 4477
e7d9ab73 4478 conn = hci_lookup_le_connect(hdev);
b62f328b 4479 if (!conn) {
a5c4e309 4480 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
b62f328b
VT		 4481 if (!conn) {
4482 BT_ERR("No memory for new connection");
230fd16a 4483 goto unlock;
b62f328b 4484 }
29b7988a
AG		 4485
4486 conn->dst_type = ev->bdaddr_type;
b9b343d2 4487
cb1d68f7
JH		 4488 /* If we didn't have a hci_conn object previously
4489 * but we're in master role this must be something
4490 * initiated using a white list. Since white list based
4491 * connections are not "first class citizens" we don't
4492 * have full tracking of them. Therefore, we go ahead
4493 * with a "best effort" approach of determining the
4494 * initiator address based on the HCI_PRIVACY flag.
4495 */
4496 if (conn->out) {
4497 conn->resp_addr_type = ev->bdaddr_type;
4498 bacpy(&conn->resp_addr, &ev->bdaddr);
d7a5a11d 4499 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
cb1d68f7
JH		 4500 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4501 bacpy(&conn->init_addr, &hdev->rpa);
4502 } else {
4503 hci_copy_identity_address(hdev,
4504 &conn->init_addr,
4505 &conn->init_addr_type);
4506 }
cb1d68f7 4507 }
9489eca4
JH		 4508 } else {
4509 cancel_delayed_work(&conn->le_conn_timeout);
b62f328b 4510 }
fcd89c09 4511
80c24ab8
JH		 4512 if (!conn->out) {
4513 /* Set the responder (our side) address type based on
4514 * the advertising address type.
4515 */
4516 conn->resp_addr_type = hdev->adv_addr_type;
4517 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4518 bacpy(&conn->resp_addr, &hdev->random_addr);
4519 else
4520 bacpy(&conn->resp_addr, &hdev->bdaddr);
4521
4522 conn->init_addr_type = ev->bdaddr_type;
4523 bacpy(&conn->init_addr, &ev->bdaddr);
a720d735
MH		 4524
4525 /* For incoming connections, set the default minimum
4526 * and maximum connection interval. They will be used
4527 * to check if the parameters are in range and if not
4528 * trigger the connection update procedure.
4529 */
4530 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4531 conn->le_conn_max_interval = hdev->le_conn_max_interval;
80c24ab8 4532 }
7be2edbb 4533
edb4b466
MH		 4534 /* Lookup the identity address from the stored connection
4535 * address and address type.
4536 *
4537 * When establishing connections to an identity address, the
4538 * connection procedure will store the resolvable random
4539 * address first. Now if it can be converted back into the
4540 * identity address, start using the identity address from
4541 * now on.
4542 */
4543 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
68d6f6de
JH		 4544 if (irk) {
4545 bacpy(&conn->dst, &irk->bdaddr);
4546 conn->dst_type = irk->addr_type;
4547 }
4548
2d3c2260
JH		 4549 if (ev->status) {
4550 hci_le_conn_failed(conn, ev->status);
837d502e
JH		 4551 goto unlock;
4552 }
4553
08853f18
JH		 4554 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4555 addr_type = BDADDR_LE_PUBLIC;
4556 else
4557 addr_type = BDADDR_LE_RANDOM;
4558
2d3c2260
JH		 4559 /* Drop the connection if the device is blocked */
4560 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4561 hci_conn_drop(conn);
cd17decb
AG		 4562 goto unlock;
4563 }
4564
b644ba33 4565 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 4566 mgmt_device_connected(hdev, conn, 0, NULL, 0);
83bc71b4 4567
7b5c0d52 4568 conn->sec_level = BT_SECURITY_LOW;
fcd89c09 4569 conn->handle = __le16_to_cpu(ev->handle);
0fe29fd1 4570 conn->state = BT_CONFIG;
fcd89c09 4571
e04fde60
MH		 4572 conn->le_conn_interval = le16_to_cpu(ev->interval);
4573 conn->le_conn_latency = le16_to_cpu(ev->latency);
4574 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4575
23b9ceb7 4576 hci_debugfs_create_conn(conn);
fcd89c09
VT		 4577 hci_conn_add_sysfs(conn);
4578
0fe29fd1
MH		 4579 if (!ev->status) {
4580 /* The remote features procedure is defined for master
4581 * role only. So only in case of an initiated connection
4582 * request the remote features.
4583 *
4584 * If the local controller supports slave-initiated features
4585 * exchange, then requesting the remote features in slave
4586 * role is possible. Otherwise just transition into the
4587 * connected state without requesting the remote features.
4588 */
4589 if (conn->out ||
4590 (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
4591 struct hci_cp_le_read_remote_features cp;
4592
4593 cp.handle = __cpu_to_le16(conn->handle);
4594
4595 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
4596 sizeof(cp), &cp);
4597
4598 hci_conn_hold(conn);
4599 } else {
4600 conn->state = BT_CONNECTED;
4601 hci_connect_cfm(conn, ev->status);
4602 }
4603 } else {
4604 hci_connect_cfm(conn, ev->status);
4605 }
fcd89c09 4606
5477610f
JH		 4607 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4608 conn->dst_type);
f161dd41 4609 if (params) {
95305baa 4610 list_del_init(&params->action);
f161dd41
JH		 4611 if (params->conn) {
4612 hci_conn_drop(params->conn);
f8aaf9b6 4613 hci_conn_put(params->conn);
f161dd41
JH		 4614 params->conn = NULL;
4615 }
4616 }
a4790dbd 4617
fcd89c09 4618unlock:
223683a5 4619 hci_update_background_scan(hdev);
fcd89c09
VT		 4620 hci_dev_unlock(hdev);
4621}
4622
1855d92d
MH		 4623static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4624 struct sk_buff *skb)
4625{
4626 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4627 struct hci_conn *conn;
4628
4629 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4630
4631 if (ev->status)
4632 return;
4633
4634 hci_dev_lock(hdev);
4635
4636 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4637 if (conn) {
4638 conn->le_conn_interval = le16_to_cpu(ev->interval);
4639 conn->le_conn_latency = le16_to_cpu(ev->latency);
4640 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4641 }
4642
4643 hci_dev_unlock(hdev);
4644}
4645
a4790dbd 4646/* This function requires the caller holds hdev->lock */
fd45ada9
AA		 4647static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
4648 bdaddr_t *addr,
4649 u8 addr_type, u8 adv_type)
a4790dbd
AG		 4650{
4651 struct hci_conn *conn;
4b9e7e75 4652 struct hci_conn_params *params;
a4790dbd 4653
1c1abcab
JH		 4654 /* If the event is not connectable don't proceed further */
4655 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
fd45ada9 4656 return NULL;
1c1abcab
JH		 4657
4658 /* Ignore if the device is blocked */
dcc36c16 4659 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
fd45ada9 4660 return NULL;
1c1abcab 4661
f99353cf
JH		 4662 /* Most controller will fail if we try to create new connections
4663 * while we have an existing one in slave role.
4664 */
4665 if (hdev->conn_hash.le_num_slave > 0)
fd45ada9 4666 return NULL;
f99353cf 4667
1c1abcab
JH		 4668 /* If we're not connectable only connect devices that we have in
4669 * our pend_le_conns list.
4670 */
49c50922
JH		 4671 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
4672 addr_type);
4b9e7e75 4673 if (!params)
fd45ada9 4674 return NULL;
4b9e7e75 4675
28a667c9
JP		 4676 if (!params->explicit_connect) {
4677 switch (params->auto_connect) {
4678 case HCI_AUTO_CONN_DIRECT:
4679 /* Only devices advertising with ADV_DIRECT_IND are
4680 * triggering a connection attempt. This is allowing
4681 * incoming connections from slave devices.
4682 */
4683 if (adv_type != LE_ADV_DIRECT_IND)
4684 return NULL;
4685 break;
4686 case HCI_AUTO_CONN_ALWAYS:
4687 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4688 * are triggering a connection attempt. This means
4689 * that incoming connectioms from slave device are
4690 * accepted and also outgoing connections to slave
4691 * devices are established when found.
4692 */
4693 break;
4694 default:
fd45ada9 4695 return NULL;
28a667c9 4696 }
4b9e7e75 4697 }
a4790dbd
AG		 4698
4699 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
e804d25d 4700 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER);
f161dd41 4701 if (!IS_ERR(conn)) {
28a667c9
JP		 4702 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
4703 * by higher layer that tried to connect, if no then
4704 * store the pointer since we don't really have any
f161dd41
JH		 4705 * other owner of the object besides the params that
4706 * triggered it. This way we can abort the connection if
4707 * the parameters get removed and keep the reference
4708 * count consistent once the connection is established.
4709 */
28a667c9
JP		 4710
4711 if (!params->explicit_connect)
4712 params->conn = hci_conn_get(conn);
4713
fd45ada9 4714 return conn;
f161dd41 4715 }
a4790dbd
AG		 4716
4717 switch (PTR_ERR(conn)) {
4718 case -EBUSY:
4719 /* If hci_connect() returns -EBUSY it means there is already
4720 * an LE connection attempt going on. Since controllers don't
4721 * support more than one connection attempt at the time, we
4722 * don't consider this an error case.
4723 */
4724 break;
4725 default:
4726 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
fd45ada9 4727 return NULL;
a4790dbd 4728 }
fd45ada9
AA		 4729
4730 return NULL;
a4790dbd
AG		 4731}
4732
4af605d8 4733static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
2f010b55
MH		 4734 u8 bdaddr_type, bdaddr_t *direct_addr,
4735 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
4af605d8 4736{
b9a6328f 4737 struct discovery_state *d = &hdev->discovery;
1c1abcab 4738 struct smp_irk *irk;
fd45ada9 4739 struct hci_conn *conn;
474ee066 4740 bool match;
c70a7e4c 4741 u32 flags;
6818375e
SJ		 4742 u8 *ptr, real_len;
4743
56b40fbf
JH		 4744 switch (type) {
4745 case LE_ADV_IND:
4746 case LE_ADV_DIRECT_IND:
4747 case LE_ADV_SCAN_IND:
4748 case LE_ADV_NONCONN_IND:
4749 case LE_ADV_SCAN_RSP:
4750 break;
4751 default:
4752 BT_ERR_RATELIMITED("Unknown advetising packet type: 0x%02x",
4753 type);
4754 return;
4755 }
4756
6818375e
SJ		 4757 /* Find the end of the data in case the report contains padded zero
4758 * bytes at the end causing an invalid length value.
4759 *
4760 * When data is NULL, len is 0 so there is no need for extra ptr
4761 * check as 'ptr < data + 0' is already false in such case.
4762 */
4763 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
4764 if (ptr + 1 + *ptr > data + len)
4765 break;
4766 }
4767
4768 real_len = ptr - data;
4769
4770 /* Adjust for actual length */
4771 if (len != real_len) {
4772 BT_ERR_RATELIMITED("%s advertising data length corrected",
4773 hdev->name);
4774 len = real_len;
4775 }
b9a6328f 4776
2f010b55
MH		 4777 /* If the direct address is present, then this report is from
4778 * a LE Direct Advertising Report event. In that case it is
4779 * important to see if the address is matching the local
4780 * controller address.
4781 */
4782 if (direct_addr) {
4783 /* Only resolvable random addresses are valid for these
4784 * kind of reports and others can be ignored.
4785 */
4786 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
4787 return;
4788
4789 /* If the controller is not using resolvable random
4790 * addresses, then this report can be ignored.
4791 */
d7a5a11d 4792 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
2f010b55
MH		 4793 return;
4794
4795 /* If the local IRK of the controller does not match
4796 * with the resolvable random address provided, then
4797 * this report can be ignored.
4798 */
4799 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
4800 return;
4801 }
4802
1c1abcab
JH		 4803 /* Check if we need to convert to identity address */
4804 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4805 if (irk) {
4806 bdaddr = &irk->bdaddr;
4807 bdaddr_type = irk->addr_type;
4808 }
4809
4810 /* Check if we have been requested to connect to this device */
fd45ada9
AA		 4811 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
4812 if (conn && type == LE_ADV_IND) {
4813 /* Store report for later inclusion by
4814 * mgmt_device_connected
4815 */
4816 memcpy(conn->le_adv_data, data, len);
4817 conn->le_adv_data_len = len;
4818 }
1c1abcab 4819
0d2bf134
JH		 4820 /* Passive scanning shouldn't trigger any device found events,
4821 * except for devices marked as CONN_REPORT for which we do send
4822 * device found events.
4823 */
ca5c4be7 4824 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
0d2bf134
JH		 4825 if (type == LE_ADV_DIRECT_IND)
4826 return;
4827
3a19b6fe
JH		 4828 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4829 bdaddr, bdaddr_type))
0d2bf134
JH		 4830 return;
4831
4832 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4833 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4834 else
4835 flags = 0;
4836 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4837 rssi, flags, data, len, NULL, 0);
97bf2e99 4838 return;
ca5c4be7 4839 }
4af605d8 4840
c70a7e4c
MH		 4841 /* When receiving non-connectable or scannable undirected
4842 * advertising reports, this means that the remote device is
4843 * not connectable and then clearly indicate this in the
4844 * device found event.
4845 *
4846 * When receiving a scan response, then there is no way to
4847 * know if the remote device is connectable or not. However
4848 * since scan responses are merged with a previously seen
4849 * advertising report, the flags field from that report
4850 * will be used.
4851 *
4852 * In the really unlikely case that a controller get confused
4853 * and just sends a scan response event, then it is marked as
4854 * not connectable as well.
4855 */
4856 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4857 type == LE_ADV_SCAN_RSP)
4858 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4859 else
4860 flags = 0;
4861
b9a6328f
JH		 4862 /* If there's nothing pending either store the data from this
4863 * event or send an immediate device found event if the data
4864 * should not be stored for later.
4865 */
4866 if (!has_pending_adv_report(hdev)) {
4867 /* If the report will trigger a SCAN_REQ store it for
4868 * later merging.
4869 */
4870 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4871 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4872 rssi, flags, data, len);
b9a6328f
JH		 4873 return;
4874 }
4875
4876 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4877 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4878 return;
4879 }
4880
474ee066
JH		 4881 /* Check if the pending report is for the same device as the new one */
4882 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4883 bdaddr_type == d->last_adv_addr_type);
4884
b9a6328f
JH		 4885 /* If the pending data doesn't match this report or this isn't a
4886 * scan response (e.g. we got a duplicate ADV_IND) then force
4887 * sending of the pending data.
4888 */
474ee066
JH		 4889 if (type != LE_ADV_SCAN_RSP || !match) {
4890 /* Send out whatever is in the cache, but skip duplicates */
4891 if (!match)
4892 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ff5cd29f 4893 d->last_adv_addr_type, NULL,
c70a7e4c 4894 d->last_adv_rssi, d->last_adv_flags,
ff5cd29f 4895 d->last_adv_data,
474ee066 4896 d->last_adv_data_len, NULL, 0);
b9a6328f
JH		 4897
4898 /* If the new report will trigger a SCAN_REQ store it for
4899 * later merging.
4900 */
4901 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4902 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4903 rssi, flags, data, len);
b9a6328f
JH		 4904 return;
4905 }
4906
4907 /* The advertising reports cannot be merged, so clear
4908 * the pending report and send out a device found event.
4909 */
4910 clear_pending_adv_report(hdev);
5c5b93e4 4911 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4912 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4913 return;
4914 }
4915
4916 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4917 * the new event is a SCAN_RSP. We can therefore proceed with
4918 * sending a merged device found event.
4919 */
4920 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
c70a7e4c 4921 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
42bd6a56 4922 d->last_adv_data, d->last_adv_data_len, data, len);
b9a6328f 4923 clear_pending_adv_report(hdev);
4af605d8
JH		 4924}
4925
6039aa73 4926static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
9aa04c91 4927{
e95beb41
AG		 4928 u8 num_reports = skb->data[0];
4929 void *ptr = &skb->data[1];
9aa04c91 4930
a4790dbd
AG		 4931 hci_dev_lock(hdev);
4932
e95beb41
AG		 4933 while (num_reports--) {
4934 struct hci_ev_le_advertising_info *ev = ptr;
4af605d8 4935 s8 rssi;
a4790dbd 4936
3c9e9195 4937 rssi = ev->data[ev->length];
4af605d8 4938 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
2f010b55
MH		 4939 ev->bdaddr_type, NULL, 0, rssi,
4940 ev->data, ev->length);
3c9e9195 4941
e95beb41 4942 ptr += sizeof(*ev) + ev->length + 1;
9aa04c91 4943 }
a4790dbd
AG		 4944
4945 hci_dev_unlock(hdev);
9aa04c91
AG		 4946}
4947
0fe29fd1
MH		 4948static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
4949 struct sk_buff *skb)
4950{
4951 struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
4952 struct hci_conn *conn;
4953
4954 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4955
4956 hci_dev_lock(hdev);
4957
4958 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4959 if (conn) {
4960 if (!ev->status)
4961 memcpy(conn->features[0], ev->features, 8);
4962
4963 if (conn->state == BT_CONFIG) {
4964 __u8 status;
4965
4966 /* If the local controller supports slave-initiated
4967 * features exchange, but the remote controller does
4968 * not, then it is possible that the error code 0x1a
4969 * for unsupported remote feature gets returned.
4970 *
4971 * In this specific case, allow the connection to
4972 * transition into connected state and mark it as
4973 * successful.
4974 */
4975 if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
4976 !conn->out && ev->status == 0x1a)
4977 status = 0x00;
4978 else
4979 status = ev->status;
4980
4981 conn->state = BT_CONNECTED;
4982 hci_connect_cfm(conn, status);
4983 hci_conn_drop(conn);
4984 }
4985 }
4986
4987 hci_dev_unlock(hdev);
4988}
4989
6039aa73 4990static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a7a595f6
VCG		 4991{
4992 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
4993 struct hci_cp_le_ltk_reply cp;
bea710fe 4994 struct hci_cp_le_ltk_neg_reply neg;
a7a595f6 4995 struct hci_conn *conn;
c9839a11 4996 struct smp_ltk *ltk;
a7a595f6 4997
9f1db00c 4998 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
a7a595f6
VCG		 4999
5000 hci_dev_lock(hdev);
5001
5002 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
bea710fe
VCG		 5003 if (conn == NULL)
5004 goto not_found;
a7a595f6 5005
f3a73d97 5006 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5378bc56 5007 if (!ltk)
bea710fe
VCG		 5008 goto not_found;
5009
5378bc56
JH		 5010 if (smp_ltk_is_sc(ltk)) {
5011 /* With SC both EDiv and Rand are set to zero */
5012 if (ev->ediv || ev->rand)
5013 goto not_found;
5014 } else {
5015 /* For non-SC keys check that EDiv and Rand match */
5016 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
5017 goto not_found;
5018 }
5019
8b76ce34
JH		 5020 memcpy(cp.ltk, ltk->val, ltk->enc_size);
5021 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
a7a595f6 5022 cp.handle = cpu_to_le16(conn->handle);
c9839a11 5023
a6f7833c 5024 conn->pending_sec_level = smp_ltk_sec_level(ltk);
a7a595f6 5025
89cbb4da 5026 conn->enc_key_size = ltk->enc_size;
a7a595f6
VCG		 5027
5028 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
5029
5981a882
CT		 5030 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
5031 * temporary key used to encrypt a connection following
5032 * pairing. It is used during the Encrypted Session Setup to
5033 * distribute the keys. Later, security can be re-established
5034 * using a distributed LTK.
5035 */
2ceba539 5036 if (ltk->type == SMP_STK) {
fe59a05f 5037 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
970d0f1b
JH		 5038 list_del_rcu(&ltk->list);
5039 kfree_rcu(ltk, rcu);
fe59a05f
JH		 5040 } else {
5041 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
c9839a11
VCG		 5042 }
5043
a7a595f6 5044 hci_dev_unlock(hdev);
bea710fe
VCG		 5045
5046 return;
5047
5048not_found:
5049 neg.handle = ev->handle;
5050 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
5051 hci_dev_unlock(hdev);
a7a595f6
VCG		 5052}
5053
8e75b46a
AG		 5054static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
5055 u8 reason)
5056{
5057 struct hci_cp_le_conn_param_req_neg_reply cp;
5058
5059 cp.handle = cpu_to_le16(handle);
5060 cp.reason = reason;
5061
5062 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
5063 &cp);
5064}
5065
5066static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
5067 struct sk_buff *skb)
5068{
5069 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
5070 struct hci_cp_le_conn_param_req_reply cp;
5071 struct hci_conn *hcon;
5072 u16 handle, min, max, latency, timeout;
5073
5074 handle = le16_to_cpu(ev->handle);
5075 min = le16_to_cpu(ev->interval_min);
5076 max = le16_to_cpu(ev->interval_max);
5077 latency = le16_to_cpu(ev->latency);
5078 timeout = le16_to_cpu(ev->timeout);
5079
5080 hcon = hci_conn_hash_lookup_handle(hdev, handle);
5081 if (!hcon || hcon->state != BT_CONNECTED)
5082 return send_conn_param_neg_reply(hdev, handle,
5083 HCI_ERROR_UNKNOWN_CONN_ID);
5084
5085 if (hci_check_conn_params(min, max, latency, timeout))
5086 return send_conn_param_neg_reply(hdev, handle,
5087 HCI_ERROR_INVALID_LL_PARAMS);
5088
40bef302 5089 if (hcon->role == HCI_ROLE_MASTER) {
348d50b8 5090 struct hci_conn_params *params;
f4869e2a 5091 u8 store_hint;
348d50b8
JH		 5092
5093 hci_dev_lock(hdev);
5094
5095 params = hci_conn_params_lookup(hdev, &hcon->dst,
5096 hcon->dst_type);
5097 if (params) {
5098 params->conn_min_interval = min;
5099 params->conn_max_interval = max;
5100 params->conn_latency = latency;
5101 params->supervision_timeout = timeout;
f4869e2a
JH		 5102 store_hint = 0x01;
5103 } else{
5104 store_hint = 0x00;
348d50b8
JH		 5105 }
5106
5107 hci_dev_unlock(hdev);
5108
f4869e2a
JH		 5109 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
5110 store_hint, min, max, latency, timeout);
348d50b8 5111 }
ffb5a827 5112
8e75b46a
AG		 5113 cp.handle = ev->handle;
5114 cp.interval_min = ev->interval_min;
5115 cp.interval_max = ev->interval_max;
5116 cp.latency = ev->latency;
5117 cp.timeout = ev->timeout;
5118 cp.min_ce_len = 0;
5119 cp.max_ce_len = 0;
5120
5121 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
5122}
5123
2f010b55
MH		 5124static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
5125 struct sk_buff *skb)
5126{
5127 u8 num_reports = skb->data[0];
5128 void *ptr = &skb->data[1];
5129
5130 hci_dev_lock(hdev);
5131
5132 while (num_reports--) {
5133 struct hci_ev_le_direct_adv_info *ev = ptr;
5134
5135 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5136 ev->bdaddr_type, &ev->direct_addr,
5137 ev->direct_addr_type, ev->rssi, NULL, 0);
5138
5139 ptr += sizeof(*ev);
5140 }
5141
5142 hci_dev_unlock(hdev);
5143}
5144
6039aa73 5145static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 5146{
5147 struct hci_ev_le_meta *le_ev = (void *) skb->data;
5148
5149 skb_pull(skb, sizeof(*le_ev));
5150
5151 switch (le_ev->subevent) {
5152 case HCI_EV_LE_CONN_COMPLETE:
5153 hci_le_conn_complete_evt(hdev, skb);
5154 break;
5155
1855d92d
MH		 5156 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
5157 hci_le_conn_update_complete_evt(hdev, skb);
5158 break;
5159
9aa04c91
AG		 5160 case HCI_EV_LE_ADVERTISING_REPORT:
5161 hci_le_adv_report_evt(hdev, skb);
5162 break;
5163
0fe29fd1
MH		 5164 case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
5165 hci_le_remote_feat_complete_evt(hdev, skb);
5166 break;
5167
a7a595f6
VCG		 5168 case HCI_EV_LE_LTK_REQ:
5169 hci_le_ltk_request_evt(hdev, skb);
5170 break;
5171
8e75b46a
AG		 5172 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
5173 hci_le_remote_conn_param_req_evt(hdev, skb);
5174 break;
5175
2f010b55
MH		 5176 case HCI_EV_LE_DIRECT_ADV_REPORT:
5177 hci_le_direct_adv_report_evt(hdev, skb);
5178 break;
5179
fcd89c09
VT		 5180 default:
5181 break;
5182 }
5183}
5184
757aa0b5
JH		 5185static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
5186 u8 event, struct sk_buff *skb)
5187{
5188 struct hci_ev_cmd_complete *ev;
5189 struct hci_event_hdr *hdr;
5190
5191 if (!skb)
5192 return false;
5193
5194 if (skb->len < sizeof(*hdr)) {
5195 BT_ERR("Too short HCI event");
5196 return false;
5197 }
5198
5199 hdr = (void *) skb->data;
5200 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5201
5202 if (event) {
5203 if (hdr->evt != event)
5204 return false;
5205 return true;
5206 }
5207
5208 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
5209 BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt);
5210 return false;
5211 }
5212
5213 if (skb->len < sizeof(*ev)) {
5214 BT_ERR("Too short cmd_complete event");
5215 return false;
5216 }
5217
5218 ev = (void *) skb->data;
5219 skb_pull(skb, sizeof(*ev));
5220
5221 if (opcode != __le16_to_cpu(ev->opcode)) {
5222 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
5223 __le16_to_cpu(ev->opcode));
5224 return false;
5225 }
5226
5227 return true;
5228}
5229
a9de9248
MH		 5230void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5231{
5232 struct hci_event_hdr *hdr = (void *) skb->data;
e6214487
JH		 5233 hci_req_complete_t req_complete = NULL;
5234 hci_req_complete_skb_t req_complete_skb = NULL;
5235 struct sk_buff *orig_skb = NULL;
757aa0b5 5236 u8 status = 0, event = hdr->evt, req_evt = 0;
e6214487 5237 u16 opcode = HCI_OP_NOP;
a9de9248 5238
242c0ebd 5239 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
c1f23a2b 5240 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
e6214487
JH		 5241 opcode = __le16_to_cpu(cmd_hdr->opcode);
5242 hci_req_cmd_complete(hdev, opcode, status, &req_complete,
5243 &req_complete_skb);
757aa0b5 5244 req_evt = event;
02350a72
JH		 5245 }
5246
e6214487
JH		 5247 /* If it looks like we might end up having to call
5248 * req_complete_skb, store a pristine copy of the skb since the
5249 * various handlers may modify the original one through
5250 * skb_pull() calls, etc.
5251 */
5252 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
5253 event == HCI_EV_CMD_COMPLETE)
5254 orig_skb = skb_clone(skb, GFP_KERNEL);
5255
5256 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5257
a9de9248 5258 switch (event) {
1da177e4
LT		 5259 case HCI_EV_INQUIRY_COMPLETE:
5260 hci_inquiry_complete_evt(hdev, skb);
5261 break;
5262
5263 case HCI_EV_INQUIRY_RESULT:
5264 hci_inquiry_result_evt(hdev, skb);
5265 break;
5266
a9de9248
MH		 5267 case HCI_EV_CONN_COMPLETE:
5268 hci_conn_complete_evt(hdev, skb);
21d9e30e
MH		 5269 break;
5270
1da177e4
LT		 5271 case HCI_EV_CONN_REQUEST:
5272 hci_conn_request_evt(hdev, skb);
5273 break;
5274
1da177e4
LT		 5275 case HCI_EV_DISCONN_COMPLETE:
5276 hci_disconn_complete_evt(hdev, skb);
5277 break;
5278
1da177e4
LT		 5279 case HCI_EV_AUTH_COMPLETE:
5280 hci_auth_complete_evt(hdev, skb);
5281 break;
5282
a9de9248
MH		 5283 case HCI_EV_REMOTE_NAME:
5284 hci_remote_name_evt(hdev, skb);
5285 break;
5286
1da177e4
LT		 5287 case HCI_EV_ENCRYPT_CHANGE:
5288 hci_encrypt_change_evt(hdev, skb);
5289 break;
5290
a9de9248
MH		 5291 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5292 hci_change_link_key_complete_evt(hdev, skb);
5293 break;
5294
5295 case HCI_EV_REMOTE_FEATURES:
5296 hci_remote_features_evt(hdev, skb);
5297 break;
5298
a9de9248 5299 case HCI_EV_CMD_COMPLETE:
e6214487
JH		 5300 hci_cmd_complete_evt(hdev, skb, &opcode, &status,
5301 &req_complete, &req_complete_skb);
a9de9248
MH		 5302 break;
5303
5304 case HCI_EV_CMD_STATUS:
e6214487
JH		 5305 hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
5306 &req_complete_skb);
a9de9248
MH		 5307 break;
5308
24dfa343
MH		 5309 case HCI_EV_HARDWARE_ERROR:
5310 hci_hardware_error_evt(hdev, skb);
5311 break;
5312
a9de9248
MH		 5313 case HCI_EV_ROLE_CHANGE:
5314 hci_role_change_evt(hdev, skb);
5315 break;
5316
5317 case HCI_EV_NUM_COMP_PKTS:
5318 hci_num_comp_pkts_evt(hdev, skb);
5319 break;
5320
5321 case HCI_EV_MODE_CHANGE:
5322 hci_mode_change_evt(hdev, skb);
1da177e4
LT		 5323 break;
5324
5325 case HCI_EV_PIN_CODE_REQ:
5326 hci_pin_code_request_evt(hdev, skb);
5327 break;
5328
5329 case HCI_EV_LINK_KEY_REQ:
5330 hci_link_key_request_evt(hdev, skb);
5331 break;
5332
5333 case HCI_EV_LINK_KEY_NOTIFY:
5334 hci_link_key_notify_evt(hdev, skb);
5335 break;
5336
5337 case HCI_EV_CLOCK_OFFSET:
5338 hci_clock_offset_evt(hdev, skb);
5339 break;
5340
a8746417
MH		 5341 case HCI_EV_PKT_TYPE_CHANGE:
5342 hci_pkt_type_change_evt(hdev, skb);
5343 break;
5344
85a1e930
MH		 5345 case HCI_EV_PSCAN_REP_MODE:
5346 hci_pscan_rep_mode_evt(hdev, skb);
5347 break;
5348
a9de9248
MH		 5349 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5350 hci_inquiry_result_with_rssi_evt(hdev, skb);
04837f64
MH		 5351 break;
5352
a9de9248
MH		 5353 case HCI_EV_REMOTE_EXT_FEATURES:
5354 hci_remote_ext_features_evt(hdev, skb);
1da177e4
LT		 5355 break;
5356
a9de9248
MH		 5357 case HCI_EV_SYNC_CONN_COMPLETE:
5358 hci_sync_conn_complete_evt(hdev, skb);
5359 break;
1da177e4 5360
a9de9248
MH		 5361 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5362 hci_extended_inquiry_result_evt(hdev, skb);
5363 break;
1da177e4 5364
1c2e0041
JH		 5365 case HCI_EV_KEY_REFRESH_COMPLETE:
5366 hci_key_refresh_complete_evt(hdev, skb);
5367 break;
5368
0493684e
MH		 5369 case HCI_EV_IO_CAPA_REQUEST:
5370 hci_io_capa_request_evt(hdev, skb);
5371 break;
5372
03b555e1
JH		 5373 case HCI_EV_IO_CAPA_REPLY:
5374 hci_io_capa_reply_evt(hdev, skb);
5375 break;
5376
a5c29683
JH		 5377 case HCI_EV_USER_CONFIRM_REQUEST:
5378 hci_user_confirm_request_evt(hdev, skb);
5379 break;
5380
1143d458
BG		 5381 case HCI_EV_USER_PASSKEY_REQUEST:
5382 hci_user_passkey_request_evt(hdev, skb);
5383 break;
5384
92a25256
JH		 5385 case HCI_EV_USER_PASSKEY_NOTIFY:
5386 hci_user_passkey_notify_evt(hdev, skb);
5387 break;
5388
5389 case HCI_EV_KEYPRESS_NOTIFY:
5390 hci_keypress_notify_evt(hdev, skb);
5391 break;
5392
0493684e
MH		 5393 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5394 hci_simple_pair_complete_evt(hdev, skb);
5395 break;
5396
41a96212
MH		 5397 case HCI_EV_REMOTE_HOST_FEATURES:
5398 hci_remote_host_features_evt(hdev, skb);
5399 break;
5400
fcd89c09
VT		 5401 case HCI_EV_LE_META:
5402 hci_le_meta_evt(hdev, skb);
5403 break;
5404
2763eda6
SJ		 5405 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
5406 hci_remote_oob_data_request_evt(hdev, skb);
5407 break;
5408
a77a6a14
AW		 5409#if IS_ENABLED(CONFIG_BT_HS)
5410 case HCI_EV_CHANNEL_SELECTED:
5411 hci_chan_selected_evt(hdev, skb);
5412 break;
5413
d5e91192
AE		 5414 case HCI_EV_PHY_LINK_COMPLETE:
5415 hci_phy_link_complete_evt(hdev, skb);
5416 break;
5417
27695fb4
AE		 5418 case HCI_EV_LOGICAL_LINK_COMPLETE:
5419 hci_loglink_complete_evt(hdev, skb);
5420 break;
5421
606e2a10
AE		 5422 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
5423 hci_disconn_loglink_complete_evt(hdev, skb);
5424 break;
5425
9eef6b3a
AE		 5426 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
5427 hci_disconn_phylink_complete_evt(hdev, skb);
5428 break;
a77a6a14 5429#endif
9eef6b3a 5430
25e89e99
AE		 5431 case HCI_EV_NUM_COMP_BLOCKS:
5432 hci_num_comp_blocks_evt(hdev, skb);
5433 break;
5434
a9de9248 5435 default:
9f1db00c 5436 BT_DBG("%s event 0x%2.2x", hdev->name, event);
1da177e4
LT		 5437 break;
5438 }
5439
757aa0b5 5440 if (req_complete) {
e6214487 5441 req_complete(hdev, status, opcode);
757aa0b5
JH		 5442 } else if (req_complete_skb) {
5443 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
5444 kfree_skb(orig_skb);
5445 orig_skb = NULL;
5446 }
e6214487 5447 req_complete_skb(hdev, status, opcode, orig_skb);
757aa0b5 5448 }
e6214487
JH		 5449
5450 kfree_skb(orig_skb);
1da177e4
LT		 5451 kfree_skb(skb);
5452 hdev->stat.evt_rx++;
5453}
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