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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[deliverable/linux.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;
abf54a50 2335 u8 reason = hci_to_mgmt_reason(ev->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
JH		 2357 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2358 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2359 reason, mgmt_connected);
abf54a50 2360
22f433dc
JH		 2361 if (conn->type == ACL_LINK) {
2362 if (test_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
2363 hci_remove_link_key(hdev, &conn->dst);
2364
01b1cb87 2365 hci_req_update_scan(hdev);
22f433dc 2366 }
2210246c 2367
9fcb18ef
AG		 2368 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2369 if (params) {
2370 switch (params->auto_connect) {
2371 case HCI_AUTO_CONN_LINK_LOSS:
2372 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2373 break;
2374 /* Fall through */
2375
4b9e7e75 2376 case HCI_AUTO_CONN_DIRECT:
9fcb18ef 2377 case HCI_AUTO_CONN_ALWAYS:
418025d1
JH		 2378 list_del_init(&params->action);
2379 list_add(&params->action, &hdev->pend_le_conns);
2380 hci_update_background_scan(hdev);
9fcb18ef
AG		 2381 break;
2382
2383 default:
2384 break;
2385 }
2386 }
2387
3846220b 2388 type = conn->type;
2210246c 2389
3a6d576b 2390 hci_disconn_cfm(conn, ev->reason);
3846220b
AG		 2391 hci_conn_del(conn);
2392
2393 /* Re-enable advertising if necessary, since it might
2394 * have been disabled by the connection. From the
2395 * HCI_LE_Set_Advertise_Enable command description in
2396 * the core specification (v4.0):
2397 * "The Controller shall continue advertising until the Host
2398 * issues an LE_Set_Advertise_Enable command with
2399 * Advertising_Enable set to 0x00 (Advertising is disabled)
2400 * or until a connection is created or until the Advertising
2401 * is timed out due to Directed Advertising."
2402 */
2403 if (type == LE_LINK)
f2252570 2404 hci_req_reenable_advertising(hdev);
f7520543
JH		 2405
2406unlock:
04837f64
MH		 2407 hci_dev_unlock(hdev);
2408}
2409
6039aa73 2410static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2411{
a9de9248 2412 struct hci_ev_auth_complete *ev = (void *) skb->data;
04837f64 2413 struct hci_conn *conn;
1da177e4 2414
9f1db00c 2415 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2416
2417 hci_dev_lock(hdev);
2418
04837f64 2419 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
d7556e20
WR		 2420 if (!conn)
2421 goto unlock;
2422
2423 if (!ev->status) {
aa64a8b5 2424 if (!hci_conn_ssp_enabled(conn) &&
807deac2 2425 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
d7556e20 2426 BT_INFO("re-auth of legacy device is not possible.");
2a611692 2427 } else {
4dae2798 2428 set_bit(HCI_CONN_AUTH, &conn->flags);
d7556e20 2429 conn->sec_level = conn->pending_sec_level;
2a611692 2430 }
d7556e20 2431 } else {
e1e930f5 2432 mgmt_auth_failed(conn, ev->status);
d7556e20 2433 }
1da177e4 2434
51a8efd7
JH		 2435 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
2436 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
1da177e4 2437
d7556e20 2438 if (conn->state == BT_CONFIG) {
aa64a8b5 2439 if (!ev->status && hci_conn_ssp_enabled(conn)) {
d7556e20
WR		 2440 struct hci_cp_set_conn_encrypt cp;
2441 cp.handle = ev->handle;
2442 cp.encrypt = 0x01;
2443 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2444 &cp);
052b30b0 2445 } else {
d7556e20 2446 conn->state = BT_CONNECTED;
539c496d 2447 hci_connect_cfm(conn, ev->status);
76a68ba0 2448 hci_conn_drop(conn);
052b30b0 2449 }
d7556e20
WR		 2450 } else {
2451 hci_auth_cfm(conn, ev->status);
052b30b0 2452
d7556e20
WR		 2453 hci_conn_hold(conn);
2454 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 2455 hci_conn_drop(conn);
d7556e20
WR		 2456 }
2457
51a8efd7 2458 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
d7556e20
WR		 2459 if (!ev->status) {
2460 struct hci_cp_set_conn_encrypt cp;
2461 cp.handle = ev->handle;
2462 cp.encrypt = 0x01;
2463 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 2464 &cp);
d7556e20 2465 } else {
51a8efd7 2466 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
d7556e20 2467 hci_encrypt_cfm(conn, ev->status, 0x00);
1da177e4
LT		 2468 }
2469 }
2470
d7556e20 2471unlock:
1da177e4
LT		 2472 hci_dev_unlock(hdev);
2473}
2474
6039aa73 2475static void hci_remote_name_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 2476{
127178d2
JH		 2477 struct hci_ev_remote_name *ev = (void *) skb->data;
2478 struct hci_conn *conn;
2479
a9de9248 2480 BT_DBG("%s", hdev->name);
1da177e4 2481
a9de9248 2482 hci_conn_check_pending(hdev);
127178d2
JH		 2483
2484 hci_dev_lock(hdev);
2485
b644ba33 2486 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
30dc78e1 2487
d7a5a11d 2488 if (!hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 2489 goto check_auth;
a88a9652 2490
b644ba33
JH		 2491 if (ev->status == 0)
2492 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
04124681 2493 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
b644ba33
JH		 2494 else
2495 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
2496
2497check_auth:
79c6c70c
JH		 2498 if (!conn)
2499 goto unlock;
2500
2501 if (!hci_outgoing_auth_needed(hdev, conn))
2502 goto unlock;
2503
51a8efd7 2504 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
127178d2 2505 struct hci_cp_auth_requested cp;
977f8fce
JH		 2506
2507 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2508
127178d2
JH		 2509 cp.handle = __cpu_to_le16(conn->handle);
2510 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
2511 }
2512
79c6c70c 2513unlock:
127178d2 2514 hci_dev_unlock(hdev);
a9de9248
MH		 2515}
2516
821f3766
JH		 2517static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
2518 u16 opcode, struct sk_buff *skb)
2519{
2520 const struct hci_rp_read_enc_key_size *rp;
2521 struct hci_conn *conn;
2522 u16 handle;
2523
2524 BT_DBG("%s status 0x%02x", hdev->name, status);
2525
2526 if (!skb || skb->len < sizeof(*rp)) {
2527 BT_ERR("%s invalid HCI Read Encryption Key Size response",
2528 hdev->name);
2529 return;
2530 }
2531
2532 rp = (void *)skb->data;
2533 handle = le16_to_cpu(rp->handle);
2534
2535 hci_dev_lock(hdev);
2536
2537 conn = hci_conn_hash_lookup_handle(hdev, handle);
2538 if (!conn)
2539 goto unlock;
2540
2541 /* If we fail to read the encryption key size, assume maximum
2542 * (which is the same we do also when this HCI command isn't
2543 * supported.
2544 */
2545 if (rp->status) {
2546 BT_ERR("%s failed to read key size for handle %u", hdev->name,
2547 handle);
2548 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2549 } else {
2550 conn->enc_key_size = rp->key_size;
2551 }
2552
2553 if (conn->state == BT_CONFIG) {
2554 conn->state = BT_CONNECTED;
2555 hci_connect_cfm(conn, 0);
2556 hci_conn_drop(conn);
2557 } else {
2558 u8 encrypt;
2559
2560 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2561 encrypt = 0x00;
5d667ef6 2562 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
821f3766
JH		 2563 encrypt = 0x02;
2564 else
2565 encrypt = 0x01;
2566
2567 hci_encrypt_cfm(conn, 0, encrypt);
2568 }
2569
2570unlock:
2571 hci_dev_unlock(hdev);
2572}
2573
6039aa73 2574static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 2575{
2576 struct hci_ev_encrypt_change *ev = (void *) skb->data;
2577 struct hci_conn *conn;
2578
9f1db00c 2579 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2580
2581 hci_dev_lock(hdev);
2582
04837f64 2583 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
dc8357cc
MH		 2584 if (!conn)
2585 goto unlock;
1da177e4 2586
dc8357cc
MH		 2587 if (!ev->status) {
2588 if (ev->encrypt) {
2589 /* Encryption implies authentication */
4dae2798
JH		 2590 set_bit(HCI_CONN_AUTH, &conn->flags);
2591 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
dc8357cc 2592 conn->sec_level = conn->pending_sec_level;
abf76bad 2593
914a6ffe
MH		 2594 /* P-256 authentication key implies FIPS */
2595 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
4dae2798 2596 set_bit(HCI_CONN_FIPS, &conn->flags);
914a6ffe 2597
abf76bad
MH		 2598 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
2599 conn->type == LE_LINK)
2600 set_bit(HCI_CONN_AES_CCM, &conn->flags);
2601 } else {
4dae2798 2602 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
abf76bad
MH		 2603 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
2604 }
dc8357cc 2605 }
a7d7723a 2606
7ed3fa20
JH		 2607 /* We should disregard the current RPA and generate a new one
2608 * whenever the encryption procedure fails.
2609 */
2610 if (ev->status && conn->type == LE_LINK)
a1536da2 2611 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
7ed3fa20 2612
dc8357cc 2613 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
f8558555 2614
dc8357cc
MH		 2615 if (ev->status && conn->state == BT_CONNECTED) {
2616 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2617 hci_conn_drop(conn);
2618 goto unlock;
1da177e4
LT		 2619 }
2620
035ad621
JH		 2621 /* In Secure Connections Only mode, do not allow any connections
2622 * that are not encrypted with AES-CCM using a P-256 authenticated
2623 * combination key.
2624 */
2625 if (hci_dev_test_flag(hdev, HCI_SC_ONLY) &&
2626 (!test_bit(HCI_CONN_AES_CCM, &conn->flags) ||
2627 conn->key_type != HCI_LK_AUTH_COMBINATION_P256)) {
2628 hci_connect_cfm(conn, HCI_ERROR_AUTH_FAILURE);
2629 hci_conn_drop(conn);
2630 goto unlock;
2631 }
2632
821f3766
JH		 2633 /* Try reading the encryption key size for encrypted ACL links */
2634 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
2635 struct hci_cp_read_enc_key_size cp;
2636 struct hci_request req;
2637
2638 /* Only send HCI_Read_Encryption_Key_Size if the
2639 * controller really supports it. If it doesn't, assume
2640 * the default size (16).
2641 */
2642 if (!(hdev->commands[20] & 0x10)) {
2643 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2644 goto notify;
2645 }
2646
2647 hci_req_init(&req, hdev);
2648
2649 cp.handle = cpu_to_le16(conn->handle);
2650 hci_req_add(&req, HCI_OP_READ_ENC_KEY_SIZE, sizeof(cp), &cp);
2651
2652 if (hci_req_run_skb(&req, read_enc_key_size_complete)) {
2653 BT_ERR("Sending HCI Read Encryption Key Size failed");
2654 conn->enc_key_size = HCI_LINK_KEY_SIZE;
2655 goto notify;
2656 }
2657
2658 goto unlock;
2659 }
2660
2661notify:
dc8357cc
MH		 2662 if (conn->state == BT_CONFIG) {
2663 if (!ev->status)
2664 conn->state = BT_CONNECTED;
2665
539c496d 2666 hci_connect_cfm(conn, ev->status);
dc8357cc
MH		 2667 hci_conn_drop(conn);
2668 } else
2669 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
2670
a7d7723a 2671unlock:
1da177e4
LT		 2672 hci_dev_unlock(hdev);
2673}
2674
6039aa73
GP		 2675static void hci_change_link_key_complete_evt(struct hci_dev *hdev,
2676 struct sk_buff *skb)
1da177e4 2677{
a9de9248 2678 struct hci_ev_change_link_key_complete *ev = (void *) skb->data;
04837f64 2679 struct hci_conn *conn;
1da177e4 2680
9f1db00c 2681 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 2682
2683 hci_dev_lock(hdev);
2684
04837f64 2685 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 2686 if (conn) {
2687 if (!ev->status)
4dae2798 2688 set_bit(HCI_CONN_SECURE, &conn->flags);
1da177e4 2689
51a8efd7 2690 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
1da177e4
LT		 2691
2692 hci_key_change_cfm(conn, ev->status);
2693 }
2694
2695 hci_dev_unlock(hdev);
2696}
2697
6039aa73
GP		 2698static void hci_remote_features_evt(struct hci_dev *hdev,
2699 struct sk_buff *skb)
1da177e4 2700{
a9de9248
MH		 2701 struct hci_ev_remote_features *ev = (void *) skb->data;
2702 struct hci_conn *conn;
2703
9f1db00c 2704 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a9de9248 2705
a9de9248
MH		 2706 hci_dev_lock(hdev);
2707
2708 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 2709 if (!conn)
2710 goto unlock;
769be974 2711
ccd556fe 2712 if (!ev->status)
cad718ed 2713 memcpy(conn->features[0], ev->features, 8);
ccd556fe
JH		 2714
2715 if (conn->state != BT_CONFIG)
2716 goto unlock;
2717
ac363cf9
SJ		 2718 if (!ev->status && lmp_ext_feat_capable(hdev) &&
2719 lmp_ext_feat_capable(conn)) {
ccd556fe
JH		 2720 struct hci_cp_read_remote_ext_features cp;
2721 cp.handle = ev->handle;
2722 cp.page = 0x01;
2723 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
807deac2 2724 sizeof(cp), &cp);
392599b9
JH		 2725 goto unlock;
2726 }
2727
671267bf 2728 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 2729 struct hci_cp_remote_name_req cp;
2730 memset(&cp, 0, sizeof(cp));
2731 bacpy(&cp.bdaddr, &conn->dst);
2732 cp.pscan_rep_mode = 0x02;
2733 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 2734 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 2735 mgmt_device_connected(hdev, conn, 0, NULL, 0);
392599b9 2736
127178d2 2737 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 2738 conn->state = BT_CONNECTED;
539c496d 2739 hci_connect_cfm(conn, ev->status);
76a68ba0 2740 hci_conn_drop(conn);
769be974 2741 }
a9de9248 2742
ccd556fe 2743unlock:
a9de9248 2744 hci_dev_unlock(hdev);
1da177e4
LT		 2745}
2746
e6214487
JH		 2747static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
2748 u16 *opcode, u8 *status,
2749 hci_req_complete_t *req_complete,
2750 hci_req_complete_skb_t *req_complete_skb)
a9de9248
MH		 2751{
2752 struct hci_ev_cmd_complete *ev = (void *) skb->data;
a9de9248 2753
e6214487
JH		 2754 *opcode = __le16_to_cpu(ev->opcode);
2755 *status = skb->data[sizeof(*ev)];
a9de9248 2756
e6214487 2757 skb_pull(skb, sizeof(*ev));
a9de9248 2758
e6214487 2759 switch (*opcode) {
a9de9248
MH		 2760 case HCI_OP_INQUIRY_CANCEL:
2761 hci_cc_inquiry_cancel(hdev, skb);
2762 break;
2763
4d93483b
AG		 2764 case HCI_OP_PERIODIC_INQ:
2765 hci_cc_periodic_inq(hdev, skb);
2766 break;
2767
a9de9248
MH		 2768 case HCI_OP_EXIT_PERIODIC_INQ:
2769 hci_cc_exit_periodic_inq(hdev, skb);
2770 break;
2771
2772 case HCI_OP_REMOTE_NAME_REQ_CANCEL:
2773 hci_cc_remote_name_req_cancel(hdev, skb);
2774 break;
2775
2776 case HCI_OP_ROLE_DISCOVERY:
2777 hci_cc_role_discovery(hdev, skb);
2778 break;
2779
e4e8e37c
MH		 2780 case HCI_OP_READ_LINK_POLICY:
2781 hci_cc_read_link_policy(hdev, skb);
2782 break;
2783
a9de9248
MH		 2784 case HCI_OP_WRITE_LINK_POLICY:
2785 hci_cc_write_link_policy(hdev, skb);
2786 break;
2787
e4e8e37c
MH		 2788 case HCI_OP_READ_DEF_LINK_POLICY:
2789 hci_cc_read_def_link_policy(hdev, skb);
2790 break;
2791
2792 case HCI_OP_WRITE_DEF_LINK_POLICY:
2793 hci_cc_write_def_link_policy(hdev, skb);
2794 break;
2795
a9de9248
MH		 2796 case HCI_OP_RESET:
2797 hci_cc_reset(hdev, skb);
2798 break;
2799
c2f0f979
MH		 2800 case HCI_OP_READ_STORED_LINK_KEY:
2801 hci_cc_read_stored_link_key(hdev, skb);
2802 break;
2803
a9366120
MH		 2804 case HCI_OP_DELETE_STORED_LINK_KEY:
2805 hci_cc_delete_stored_link_key(hdev, skb);
2806 break;
2807
a9de9248
MH		 2808 case HCI_OP_WRITE_LOCAL_NAME:
2809 hci_cc_write_local_name(hdev, skb);
2810 break;
2811
2812 case HCI_OP_READ_LOCAL_NAME:
2813 hci_cc_read_local_name(hdev, skb);
2814 break;
2815
2816 case HCI_OP_WRITE_AUTH_ENABLE:
2817 hci_cc_write_auth_enable(hdev, skb);
2818 break;
2819
2820 case HCI_OP_WRITE_ENCRYPT_MODE:
2821 hci_cc_write_encrypt_mode(hdev, skb);
2822 break;
2823
2824 case HCI_OP_WRITE_SCAN_ENABLE:
2825 hci_cc_write_scan_enable(hdev, skb);
2826 break;
2827
2828 case HCI_OP_READ_CLASS_OF_DEV:
2829 hci_cc_read_class_of_dev(hdev, skb);
2830 break;
2831
2832 case HCI_OP_WRITE_CLASS_OF_DEV:
2833 hci_cc_write_class_of_dev(hdev, skb);
2834 break;
2835
2836 case HCI_OP_READ_VOICE_SETTING:
2837 hci_cc_read_voice_setting(hdev, skb);
2838 break;
2839
2840 case HCI_OP_WRITE_VOICE_SETTING:
2841 hci_cc_write_voice_setting(hdev, skb);
2842 break;
2843
b4cb9fb2
MH		 2844 case HCI_OP_READ_NUM_SUPPORTED_IAC:
2845 hci_cc_read_num_supported_iac(hdev, skb);
2846 break;
2847
333140b5
MH		 2848 case HCI_OP_WRITE_SSP_MODE:
2849 hci_cc_write_ssp_mode(hdev, skb);
2850 break;
2851
eac83dc6
MH		 2852 case HCI_OP_WRITE_SC_SUPPORT:
2853 hci_cc_write_sc_support(hdev, skb);
2854 break;
2855
a9de9248
MH		 2856 case HCI_OP_READ_LOCAL_VERSION:
2857 hci_cc_read_local_version(hdev, skb);
2858 break;
2859
2860 case HCI_OP_READ_LOCAL_COMMANDS:
2861 hci_cc_read_local_commands(hdev, skb);
2862 break;
2863
2864 case HCI_OP_READ_LOCAL_FEATURES:
2865 hci_cc_read_local_features(hdev, skb);
2866 break;
2867
971e3a4b
AG		 2868 case HCI_OP_READ_LOCAL_EXT_FEATURES:
2869 hci_cc_read_local_ext_features(hdev, skb);
2870 break;
2871
a9de9248
MH		 2872 case HCI_OP_READ_BUFFER_SIZE:
2873 hci_cc_read_buffer_size(hdev, skb);
2874 break;
2875
2876 case HCI_OP_READ_BD_ADDR:
2877 hci_cc_read_bd_addr(hdev, skb);
2878 break;
2879
f332ec66
JH		 2880 case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
2881 hci_cc_read_page_scan_activity(hdev, skb);
2882 break;
2883
4a3ee763
JH		 2884 case HCI_OP_WRITE_PAGE_SCAN_ACTIVITY:
2885 hci_cc_write_page_scan_activity(hdev, skb);
2886 break;
2887
f332ec66
JH		 2888 case HCI_OP_READ_PAGE_SCAN_TYPE:
2889 hci_cc_read_page_scan_type(hdev, skb);
2890 break;
2891
4a3ee763
JH		 2892 case HCI_OP_WRITE_PAGE_SCAN_TYPE:
2893 hci_cc_write_page_scan_type(hdev, skb);
2894 break;
2895
350ee4cf
AE		 2896 case HCI_OP_READ_DATA_BLOCK_SIZE:
2897 hci_cc_read_data_block_size(hdev, skb);
2898 break;
2899
1e89cffb
AE		 2900 case HCI_OP_READ_FLOW_CONTROL_MODE:
2901 hci_cc_read_flow_control_mode(hdev, skb);
2902 break;
2903
928abaa7
AE		 2904 case HCI_OP_READ_LOCAL_AMP_INFO:
2905 hci_cc_read_local_amp_info(hdev, skb);
2906 break;
2907
33f35721
JH		 2908 case HCI_OP_READ_CLOCK:
2909 hci_cc_read_clock(hdev, skb);
2910 break;
2911
d5859e22
JH		 2912 case HCI_OP_READ_INQ_RSP_TX_POWER:
2913 hci_cc_read_inq_rsp_tx_power(hdev, skb);
2914 break;
2915
980e1a53
JH		 2916 case HCI_OP_PIN_CODE_REPLY:
2917 hci_cc_pin_code_reply(hdev, skb);
2918 break;
2919
2920 case HCI_OP_PIN_CODE_NEG_REPLY:
2921 hci_cc_pin_code_neg_reply(hdev, skb);
2922 break;
2923
c35938b2 2924 case HCI_OP_READ_LOCAL_OOB_DATA:
4d2d2796
MH		 2925 hci_cc_read_local_oob_data(hdev, skb);
2926 break;
2927
2928 case HCI_OP_READ_LOCAL_OOB_EXT_DATA:
2929 hci_cc_read_local_oob_ext_data(hdev, skb);
c35938b2
SJ		 2930 break;
2931
6ed58ec5
VT		 2932 case HCI_OP_LE_READ_BUFFER_SIZE:
2933 hci_cc_le_read_buffer_size(hdev, skb);
2934 break;
2935
60e77321
JH		 2936 case HCI_OP_LE_READ_LOCAL_FEATURES:
2937 hci_cc_le_read_local_features(hdev, skb);
2938 break;
2939
8fa19098
JH		 2940 case HCI_OP_LE_READ_ADV_TX_POWER:
2941 hci_cc_le_read_adv_tx_power(hdev, skb);
2942 break;
2943
a5c29683
JH		 2944 case HCI_OP_USER_CONFIRM_REPLY:
2945 hci_cc_user_confirm_reply(hdev, skb);
2946 break;
2947
2948 case HCI_OP_USER_CONFIRM_NEG_REPLY:
2949 hci_cc_user_confirm_neg_reply(hdev, skb);
2950 break;
2951
1143d458
BG		 2952 case HCI_OP_USER_PASSKEY_REPLY:
2953 hci_cc_user_passkey_reply(hdev, skb);
2954 break;
2955
2956 case HCI_OP_USER_PASSKEY_NEG_REPLY:
2957 hci_cc_user_passkey_neg_reply(hdev, skb);
16cde993 2958 break;
07f7fa5d 2959
7a4cd51d
MH		 2960 case HCI_OP_LE_SET_RANDOM_ADDR:
2961 hci_cc_le_set_random_addr(hdev, skb);
2962 break;
2963
c1d5dc4a
JH		 2964 case HCI_OP_LE_SET_ADV_ENABLE:
2965 hci_cc_le_set_adv_enable(hdev, skb);
2966 break;
2967
533553f8
MH		 2968 case HCI_OP_LE_SET_SCAN_PARAM:
2969 hci_cc_le_set_scan_param(hdev, skb);
2970 break;
2971
eb9d91f5
AG		 2972 case HCI_OP_LE_SET_SCAN_ENABLE:
2973 hci_cc_le_set_scan_enable(hdev, skb);
2974 break;
2975
cf1d081f
JH		 2976 case HCI_OP_LE_READ_WHITE_LIST_SIZE:
2977 hci_cc_le_read_white_list_size(hdev, skb);
2978 break;
2979
0f36b589
MH		 2980 case HCI_OP_LE_CLEAR_WHITE_LIST:
2981 hci_cc_le_clear_white_list(hdev, skb);
2982 break;
2983
2984 case HCI_OP_LE_ADD_TO_WHITE_LIST:
2985 hci_cc_le_add_to_white_list(hdev, skb);
2986 break;
2987
2988 case HCI_OP_LE_DEL_FROM_WHITE_LIST:
2989 hci_cc_le_del_from_white_list(hdev, skb);
2990 break;
2991
9b008c04
JH		 2992 case HCI_OP_LE_READ_SUPPORTED_STATES:
2993 hci_cc_le_read_supported_states(hdev, skb);
2994 break;
2995
a8e1bfaa
MH		 2996 case HCI_OP_LE_READ_DEF_DATA_LEN:
2997 hci_cc_le_read_def_data_len(hdev, skb);
2998 break;
2999
3000 case HCI_OP_LE_WRITE_DEF_DATA_LEN:
3001 hci_cc_le_write_def_data_len(hdev, skb);
3002 break;
3003
3004 case HCI_OP_LE_READ_MAX_DATA_LEN:
3005 hci_cc_le_read_max_data_len(hdev, skb);
3006 break;
3007
f9b49306
AG		 3008 case HCI_OP_WRITE_LE_HOST_SUPPORTED:
3009 hci_cc_write_le_host_supported(hdev, skb);
3010 break;
3011
56ed2cb8
JH		 3012 case HCI_OP_LE_SET_ADV_PARAM:
3013 hci_cc_set_adv_param(hdev, skb);
3014 break;
3015
5ae76a94
AK		 3016 case HCI_OP_READ_RSSI:
3017 hci_cc_read_rssi(hdev, skb);
3018 break;
3019
5a134fae
AK		 3020 case HCI_OP_READ_TX_POWER:
3021 hci_cc_read_tx_power(hdev, skb);
3022 break;
3023
c50b33c8
MH		 3024 case HCI_OP_WRITE_SSP_DEBUG_MODE:
3025 hci_cc_write_ssp_debug_mode(hdev, skb);
3026 break;
3027
a9de9248 3028 default:
e6214487 3029 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
a9de9248
MH		 3030 break;
3031 }
3032
e6214487 3033 if (*opcode != HCI_OP_NOP)
65cc2b49 3034 cancel_delayed_work(&hdev->cmd_timer);
6bd32326 3035
600b2150
JH		 3036 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3037 atomic_set(&hdev->cmd_cnt, 1);
3038
e6214487
JH		 3039 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
3040 req_complete_skb);
9238f36a 3041
600b2150
JH		 3042 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3043 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 3044}
3045
e6214487
JH		 3046static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb,
3047 u16 *opcode, u8 *status,
3048 hci_req_complete_t *req_complete,
3049 hci_req_complete_skb_t *req_complete_skb)
a9de9248
MH		 3050{
3051 struct hci_ev_cmd_status *ev = (void *) skb->data;
a9de9248
MH		 3052
3053 skb_pull(skb, sizeof(*ev));
3054
e6214487
JH		 3055 *opcode = __le16_to_cpu(ev->opcode);
3056 *status = ev->status;
a9de9248 3057
e6214487 3058 switch (*opcode) {
a9de9248
MH		 3059 case HCI_OP_INQUIRY:
3060 hci_cs_inquiry(hdev, ev->status);
3061 break;
3062
3063 case HCI_OP_CREATE_CONN:
3064 hci_cs_create_conn(hdev, ev->status);
3065 break;
3066
9645c76c
KP		 3067 case HCI_OP_DISCONNECT:
3068 hci_cs_disconnect(hdev, ev->status);
3069 break;
3070
a9de9248
MH		 3071 case HCI_OP_ADD_SCO:
3072 hci_cs_add_sco(hdev, ev->status);
3073 break;
3074
f8558555
MH		 3075 case HCI_OP_AUTH_REQUESTED:
3076 hci_cs_auth_requested(hdev, ev->status);
3077 break;
3078
3079 case HCI_OP_SET_CONN_ENCRYPT:
3080 hci_cs_set_conn_encrypt(hdev, ev->status);
3081 break;
3082
a9de9248
MH		 3083 case HCI_OP_REMOTE_NAME_REQ:
3084 hci_cs_remote_name_req(hdev, ev->status);
3085 break;
3086
769be974
MH		 3087 case HCI_OP_READ_REMOTE_FEATURES:
3088 hci_cs_read_remote_features(hdev, ev->status);
3089 break;
3090
3091 case HCI_OP_READ_REMOTE_EXT_FEATURES:
3092 hci_cs_read_remote_ext_features(hdev, ev->status);
3093 break;
3094
a9de9248
MH		 3095 case HCI_OP_SETUP_SYNC_CONN:
3096 hci_cs_setup_sync_conn(hdev, ev->status);
3097 break;
3098
3099 case HCI_OP_SNIFF_MODE:
3100 hci_cs_sniff_mode(hdev, ev->status);
3101 break;
3102
3103 case HCI_OP_EXIT_SNIFF_MODE:
3104 hci_cs_exit_sniff_mode(hdev, ev->status);
3105 break;
3106
50fc85f1
KP		 3107 case HCI_OP_SWITCH_ROLE:
3108 hci_cs_switch_role(hdev, ev->status);
3109 break;
3110
cb1d68f7
JH		 3111 case HCI_OP_LE_CREATE_CONN:
3112 hci_cs_le_create_conn(hdev, ev->status);
3113 break;
3114
0fe29fd1
MH		 3115 case HCI_OP_LE_READ_REMOTE_FEATURES:
3116 hci_cs_le_read_remote_features(hdev, ev->status);
3117 break;
3118
81d0c8ad
JH		 3119 case HCI_OP_LE_START_ENC:
3120 hci_cs_le_start_enc(hdev, ev->status);
3121 break;
3122
a9de9248 3123 default:
e6214487 3124 BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
a9de9248
MH		 3125 break;
3126 }
3127
e6214487 3128 if (*opcode != HCI_OP_NOP)
65cc2b49 3129 cancel_delayed_work(&hdev->cmd_timer);
6bd32326 3130
600b2150
JH		 3131 if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags))
3132 atomic_set(&hdev->cmd_cnt, 1);
3133
444c6dd5
JH		 3134 /* Indicate request completion if the command failed. Also, if
3135 * we're not waiting for a special event and we get a success
3136 * command status we should try to flag the request as completed
3137 * (since for this kind of commands there will not be a command
3138 * complete event).
3139 */
02350a72 3140 if (ev->status ||
242c0ebd 3141 (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->hci.req_event))
e6214487
JH		 3142 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
3143 req_complete_skb);
9238f36a 3144
600b2150
JH		 3145 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
3146 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 3147}
3148
24dfa343
MH		 3149static void hci_hardware_error_evt(struct hci_dev *hdev, struct sk_buff *skb)
3150{
3151 struct hci_ev_hardware_error *ev = (void *) skb->data;
3152
c7741d16
MH		 3153 hdev->hw_error_code = ev->code;
3154
3155 queue_work(hdev->req_workqueue, &hdev->error_reset);
24dfa343
MH		 3156}
3157
6039aa73 3158static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 3159{
3160 struct hci_ev_role_change *ev = (void *) skb->data;
3161 struct hci_conn *conn;
3162
9f1db00c 3163 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a9de9248
MH		 3164
3165 hci_dev_lock(hdev);
3166
3167 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
3168 if (conn) {
40bef302
JH		 3169 if (!ev->status)
3170 conn->role = ev->role;
a9de9248 3171
51a8efd7 3172 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
a9de9248
MH		 3173
3174 hci_role_switch_cfm(conn, ev->status, ev->role);
3175 }
3176
3177 hci_dev_unlock(hdev);
3178}
3179
6039aa73 3180static void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248
MH		 3181{
3182 struct hci_ev_num_comp_pkts *ev = (void *) skb->data;
a9de9248
MH		 3183 int i;
3184
32ac5b9b
AE		 3185 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
3186 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3187 return;
3188 }
3189
c5993de8 3190 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
807deac2 3191 ev->num_hndl * sizeof(struct hci_comp_pkts_info)) {
a9de9248
MH		 3192 BT_DBG("%s bad parameters", hdev->name);
3193 return;
3194 }
3195
c5993de8
AE		 3196 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
3197
613a1c0c
AE		 3198 for (i = 0; i < ev->num_hndl; i++) {
3199 struct hci_comp_pkts_info *info = &ev->handles[i];
a9de9248
MH		 3200 struct hci_conn *conn;
3201 __u16 handle, count;
3202
613a1c0c
AE		 3203 handle = __le16_to_cpu(info->handle);
3204 count = __le16_to_cpu(info->count);
a9de9248
MH		 3205
3206 conn = hci_conn_hash_lookup_handle(hdev, handle);
f4280918
AE		 3207 if (!conn)
3208 continue;
3209
3210 conn->sent -= count;
3211
3212 switch (conn->type) {
3213 case ACL_LINK:
3214 hdev->acl_cnt += count;
3215 if (hdev->acl_cnt > hdev->acl_pkts)
3216 hdev->acl_cnt = hdev->acl_pkts;
3217 break;
3218
3219 case LE_LINK:
3220 if (hdev->le_pkts) {
3221 hdev->le_cnt += count;
3222 if (hdev->le_cnt > hdev->le_pkts)
3223 hdev->le_cnt = hdev->le_pkts;
3224 } else {
70f23020
AE		 3225 hdev->acl_cnt += count;
3226 if (hdev->acl_cnt > hdev->acl_pkts)
a9de9248 3227 hdev->acl_cnt = hdev->acl_pkts;
a9de9248 3228 }
f4280918
AE		 3229 break;
3230
3231 case SCO_LINK:
3232 hdev->sco_cnt += count;
3233 if (hdev->sco_cnt > hdev->sco_pkts)
3234 hdev->sco_cnt = hdev->sco_pkts;
3235 break;
3236
3237 default:
3238 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3239 break;
a9de9248
MH		 3240 }
3241 }
3242
3eff45ea 3243 queue_work(hdev->workqueue, &hdev->tx_work);
a9de9248
MH		 3244}
3245
76ef7cf7
AE		 3246static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
3247 __u16 handle)
3248{
3249 struct hci_chan *chan;
3250
3251 switch (hdev->dev_type) {
3252 case HCI_BREDR:
3253 return hci_conn_hash_lookup_handle(hdev, handle);
3254 case HCI_AMP:
3255 chan = hci_chan_lookup_handle(hdev, handle);
3256 if (chan)
3257 return chan->conn;
3258 break;
3259 default:
3260 BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type);
3261 break;
3262 }
3263
3264 return NULL;
3265}
3266
6039aa73 3267static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
25e89e99
AE		 3268{
3269 struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
3270 int i;
3271
3272 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3273 BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
3274 return;
3275 }
3276
3277 if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
807deac2 3278 ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
25e89e99
AE		 3279 BT_DBG("%s bad parameters", hdev->name);
3280 return;
3281 }
3282
3283 BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
807deac2 3284 ev->num_hndl);
25e89e99
AE		 3285
3286 for (i = 0; i < ev->num_hndl; i++) {
3287 struct hci_comp_blocks_info *info = &ev->handles[i];
76ef7cf7 3288 struct hci_conn *conn = NULL;
25e89e99
AE		 3289 __u16 handle, block_count;
3290
3291 handle = __le16_to_cpu(info->handle);
3292 block_count = __le16_to_cpu(info->blocks);
3293
76ef7cf7 3294 conn = __hci_conn_lookup_handle(hdev, handle);
25e89e99
AE		 3295 if (!conn)
3296 continue;
3297
3298 conn->sent -= block_count;
3299
3300 switch (conn->type) {
3301 case ACL_LINK:
bd1eb66b 3302 case AMP_LINK:
25e89e99
AE		 3303 hdev->block_cnt += block_count;
3304 if (hdev->block_cnt > hdev->num_blocks)
3305 hdev->block_cnt = hdev->num_blocks;
3306 break;
3307
3308 default:
3309 BT_ERR("Unknown type %d conn %p", conn->type, conn);
3310 break;
3311 }
3312 }
3313
3314 queue_work(hdev->workqueue, &hdev->tx_work);
3315}
3316
6039aa73 3317static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
04837f64 3318{
a9de9248 3319 struct hci_ev_mode_change *ev = (void *) skb->data;
04837f64
MH		 3320 struct hci_conn *conn;
3321
9f1db00c 3322 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
04837f64
MH		 3323
3324 hci_dev_lock(hdev);
3325
3326 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
a9de9248
MH		 3327 if (conn) {
3328 conn->mode = ev->mode;
a9de9248 3329
8fc9ced3
GP		 3330 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
3331 &conn->flags)) {
a9de9248 3332 if (conn->mode == HCI_CM_ACTIVE)
58a681ef 3333 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3334 else
58a681ef 3335 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 3336 }
e73439d8 3337
51a8efd7 3338 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8 3339 hci_sco_setup(conn, ev->status);
04837f64
MH		 3340 }
3341
3342 hci_dev_unlock(hdev);
3343}
3344
6039aa73 3345static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3346{
052b30b0
MH		 3347 struct hci_ev_pin_code_req *ev = (void *) skb->data;
3348 struct hci_conn *conn;
3349
a9de9248 3350 BT_DBG("%s", hdev->name);
052b30b0
MH		 3351
3352 hci_dev_lock(hdev);
3353
3354 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
b6f98044
WR		 3355 if (!conn)
3356 goto unlock;
3357
3358 if (conn->state == BT_CONNECTED) {
052b30b0
MH		 3359 hci_conn_hold(conn);
3360 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
76a68ba0 3361 hci_conn_drop(conn);
052b30b0
MH		 3362 }
3363
d7a5a11d 3364 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
2f407f0a 3365 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
03b555e1 3366 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
807deac2 3367 sizeof(ev->bdaddr), &ev->bdaddr);
d7a5a11d 3368 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
a770bb5a
WR		 3369 u8 secure;
3370
3371 if (conn->pending_sec_level == BT_SECURITY_HIGH)
3372 secure = 1;
3373 else
3374 secure = 0;
3375
744cf19e 3376 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
a770bb5a 3377 }
980e1a53 3378
b6f98044 3379unlock:
052b30b0 3380 hci_dev_unlock(hdev);
a9de9248
MH		 3381}
3382
cb6f3f7a
JH		 3383static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
3384{
3385 if (key_type == HCI_LK_CHANGED_COMBINATION)
3386 return;
3387
3388 conn->pin_length = pin_len;
3389 conn->key_type = key_type;
3390
3391 switch (key_type) {
3392 case HCI_LK_LOCAL_UNIT:
3393 case HCI_LK_REMOTE_UNIT:
3394 case HCI_LK_DEBUG_COMBINATION:
3395 return;
3396 case HCI_LK_COMBINATION:
3397 if (pin_len == 16)
3398 conn->pending_sec_level = BT_SECURITY_HIGH;
3399 else
3400 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3401 break;
3402 case HCI_LK_UNAUTH_COMBINATION_P192:
3403 case HCI_LK_UNAUTH_COMBINATION_P256:
3404 conn->pending_sec_level = BT_SECURITY_MEDIUM;
3405 break;
3406 case HCI_LK_AUTH_COMBINATION_P192:
3407 conn->pending_sec_level = BT_SECURITY_HIGH;
3408 break;
3409 case HCI_LK_AUTH_COMBINATION_P256:
3410 conn->pending_sec_level = BT_SECURITY_FIPS;
3411 break;
3412 }
3413}
3414
6039aa73 3415static void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3416{
55ed8ca1
JH		 3417 struct hci_ev_link_key_req *ev = (void *) skb->data;
3418 struct hci_cp_link_key_reply cp;
3419 struct hci_conn *conn;
3420 struct link_key *key;
3421
a9de9248 3422 BT_DBG("%s", hdev->name);
55ed8ca1 3423
d7a5a11d 3424 if (!hci_dev_test_flag(hdev, HCI_MGMT))
55ed8ca1
JH		 3425 return;
3426
3427 hci_dev_lock(hdev);
3428
3429 key = hci_find_link_key(hdev, &ev->bdaddr);
3430 if (!key) {
6ed93dc6
AE		 3431 BT_DBG("%s link key not found for %pMR", hdev->name,
3432 &ev->bdaddr);
55ed8ca1
JH		 3433 goto not_found;
3434 }
3435
6ed93dc6
AE		 3436 BT_DBG("%s found key type %u for %pMR", hdev->name, key->type,
3437 &ev->bdaddr);
55ed8ca1 3438
55ed8ca1 3439 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
60b83f57 3440 if (conn) {
fe8bc5ac
JH		 3441 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
3442
66138ce8
MH		 3443 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
3444 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
807deac2 3445 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
60b83f57
WR		 3446 BT_DBG("%s ignoring unauthenticated key", hdev->name);
3447 goto not_found;
3448 }
55ed8ca1 3449
60b83f57 3450 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
f3fb0b58
JH		 3451 (conn->pending_sec_level == BT_SECURITY_HIGH ||
3452 conn->pending_sec_level == BT_SECURITY_FIPS)) {
8fc9ced3
GP		 3453 BT_DBG("%s ignoring key unauthenticated for high security",
3454 hdev->name);
60b83f57
WR		 3455 goto not_found;
3456 }
3457
cb6f3f7a 3458 conn_set_key(conn, key->type, key->pin_len);
55ed8ca1
JH		 3459 }
3460
3461 bacpy(&cp.bdaddr, &ev->bdaddr);
9b3b4460 3462 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
55ed8ca1
JH		 3463
3464 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
3465
3466 hci_dev_unlock(hdev);
3467
3468 return;
3469
3470not_found:
3471 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
3472 hci_dev_unlock(hdev);
a9de9248
MH		 3473}
3474
6039aa73 3475static void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
a9de9248 3476{
052b30b0
MH		 3477 struct hci_ev_link_key_notify *ev = (void *) skb->data;
3478 struct hci_conn *conn;
7652ff6a
JH		 3479 struct link_key *key;
3480 bool persistent;
55ed8ca1 3481 u8 pin_len = 0;
052b30b0 3482
a9de9248 3483 BT_DBG("%s", hdev->name);
052b30b0
MH		 3484
3485 hci_dev_lock(hdev);
3486
3487 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
82c13d42
JH		 3488 if (!conn)
3489 goto unlock;
3490
3491 hci_conn_hold(conn);
3492 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
3493 hci_conn_drop(conn);
3494
fe8bc5ac 3495 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
82c13d42 3496 conn_set_key(conn, ev->key_type, conn->pin_length);
052b30b0 3497
d7a5a11d 3498 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7652ff6a
JH		 3499 goto unlock;
3500
3501 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
3502 ev->key_type, pin_len, &persistent);
3503 if (!key)
3504 goto unlock;
3505
cb6f3f7a
JH		 3506 /* Update connection information since adding the key will have
3507 * fixed up the type in the case of changed combination keys.
3508 */
3509 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
3510 conn_set_key(conn, key->type, key->pin_len);
3511
7652ff6a 3512 mgmt_new_link_key(hdev, key, persistent);
55ed8ca1 3513
6d5650c4
JH		 3514 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
3515 * is set. If it's not set simply remove the key from the kernel
3516 * list (we've still notified user space about it but with
3517 * store_hint being 0).
3518 */
3519 if (key->type == HCI_LK_DEBUG_COMBINATION &&
d7a5a11d 3520 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
0378b597
JH		 3521 list_del_rcu(&key->list);
3522 kfree_rcu(key, rcu);
82c13d42 3523 goto unlock;
6d5650c4 3524 }
7652ff6a 3525
82c13d42
JH		 3526 if (persistent)
3527 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3528 else
3529 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
3530
7652ff6a 3531unlock:
052b30b0 3532 hci_dev_unlock(hdev);
a9de9248
MH		 3533}
3534
6039aa73 3535static void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 3536{
a9de9248 3537 struct hci_ev_clock_offset *ev = (void *) skb->data;
04837f64 3538 struct hci_conn *conn;
1da177e4 3539
9f1db00c 3540 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
1da177e4
LT		 3541
3542 hci_dev_lock(hdev);
3543
04837f64 3544 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 3545 if (conn && !ev->status) {
3546 struct inquiry_entry *ie;
3547
cc11b9c1
AE		 3548 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3549 if (ie) {
1da177e4
LT		 3550 ie->data.clock_offset = ev->clock_offset;
3551 ie->timestamp = jiffies;
3552 }
3553 }
3554
3555 hci_dev_unlock(hdev);
3556}
3557
6039aa73 3558static void hci_pkt_type_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
a8746417
MH		 3559{
3560 struct hci_ev_pkt_type_change *ev = (void *) skb->data;
3561 struct hci_conn *conn;
3562
9f1db00c 3563 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
a8746417
MH		 3564
3565 hci_dev_lock(hdev);
3566
3567 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3568 if (conn && !ev->status)
3569 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
3570
3571 hci_dev_unlock(hdev);
3572}
3573
6039aa73 3574static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
85a1e930 3575{
a9de9248 3576 struct hci_ev_pscan_rep_mode *ev = (void *) skb->data;
85a1e930
MH		 3577 struct inquiry_entry *ie;
3578
3579 BT_DBG("%s", hdev->name);
3580
3581 hci_dev_lock(hdev);
3582
cc11b9c1
AE		 3583 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3584 if (ie) {
85a1e930
MH		 3585 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
3586 ie->timestamp = jiffies;
3587 }
3588
3589 hci_dev_unlock(hdev);
3590}
3591
6039aa73
GP		 3592static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev,
3593 struct sk_buff *skb)
a9de9248
MH		 3594{
3595 struct inquiry_data data;
3596 int num_rsp = *((__u8 *) skb->data);
3597
3598 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
3599
3600 if (!num_rsp)
3601 return;
3602
d7a5a11d 3603 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3604 return;
3605
a9de9248
MH		 3606 hci_dev_lock(hdev);
3607
3608 if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
138d22ef
SJ		 3609 struct inquiry_info_with_rssi_and_pscan_mode *info;
3610 info = (void *) (skb->data + 1);
a9de9248 3611
e17acd40 3612 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3613 u32 flags;
3614
a9de9248
MH		 3615 bacpy(&data.bdaddr, &info->bdaddr);
3616 data.pscan_rep_mode = info->pscan_rep_mode;
3617 data.pscan_period_mode = info->pscan_period_mode;
3618 data.pscan_mode = info->pscan_mode;
3619 memcpy(data.dev_class, info->dev_class, 3);
3620 data.clock_offset = info->clock_offset;
3621 data.rssi = info->rssi;
41a96212 3622 data.ssp_mode = 0x00;
3175405b 3623
af58925c
MH		 3624 flags = hci_inquiry_cache_update(hdev, &data, false);
3625
48264f06 3626 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3627 info->dev_class, info->rssi,
af58925c 3628 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3629 }
3630 } else {
3631 struct inquiry_info_with_rssi *info = (void *) (skb->data + 1);
3632
e17acd40 3633 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3634 u32 flags;
3635
a9de9248
MH		 3636 bacpy(&data.bdaddr, &info->bdaddr);
3637 data.pscan_rep_mode = info->pscan_rep_mode;
3638 data.pscan_period_mode = info->pscan_period_mode;
3639 data.pscan_mode = 0x00;
3640 memcpy(data.dev_class, info->dev_class, 3);
3641 data.clock_offset = info->clock_offset;
3642 data.rssi = info->rssi;
41a96212 3643 data.ssp_mode = 0x00;
af58925c
MH		 3644
3645 flags = hci_inquiry_cache_update(hdev, &data, false);
3646
48264f06 3647 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 3648 info->dev_class, info->rssi,
af58925c 3649 flags, NULL, 0, NULL, 0);
a9de9248
MH		 3650 }
3651 }
3652
3653 hci_dev_unlock(hdev);
3654}
3655
6039aa73
GP		 3656static void hci_remote_ext_features_evt(struct hci_dev *hdev,
3657 struct sk_buff *skb)
a9de9248 3658{
41a96212
MH		 3659 struct hci_ev_remote_ext_features *ev = (void *) skb->data;
3660 struct hci_conn *conn;
3661
a9de9248 3662 BT_DBG("%s", hdev->name);
41a96212 3663
41a96212
MH		 3664 hci_dev_lock(hdev);
3665
3666 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 3667 if (!conn)
3668 goto unlock;
41a96212 3669
cad718ed
JH		 3670 if (ev->page < HCI_MAX_PAGES)
3671 memcpy(conn->features[ev->page], ev->features, 8);
3672
ccd556fe
JH		 3673 if (!ev->status && ev->page == 0x01) {
3674 struct inquiry_entry *ie;
41a96212 3675
cc11b9c1
AE		 3676 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
3677 if (ie)
02b7cc62 3678 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
769be974 3679
bbb0eada 3680 if (ev->features[0] & LMP_HOST_SSP) {
58a681ef 3681 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
bbb0eada
JK		 3682 } else {
3683 /* It is mandatory by the Bluetooth specification that
3684 * Extended Inquiry Results are only used when Secure
3685 * Simple Pairing is enabled, but some devices violate
3686 * this.
3687 *
3688 * To make these devices work, the internal SSP
3689 * enabled flag needs to be cleared if the remote host
3690 * features do not indicate SSP support */
3691 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
3692 }
eb9a8f3f
MH		 3693
3694 if (ev->features[0] & LMP_HOST_SC)
3695 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
ccd556fe
JH		 3696 }
3697
3698 if (conn->state != BT_CONFIG)
3699 goto unlock;
3700
671267bf 3701 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 3702 struct hci_cp_remote_name_req cp;
3703 memset(&cp, 0, sizeof(cp));
3704 bacpy(&cp.bdaddr, &conn->dst);
3705 cp.pscan_rep_mode = 0x02;
3706 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 3707 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 3708 mgmt_device_connected(hdev, conn, 0, NULL, 0);
392599b9 3709
127178d2 3710 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 3711 conn->state = BT_CONNECTED;
539c496d 3712 hci_connect_cfm(conn, ev->status);
76a68ba0 3713 hci_conn_drop(conn);
41a96212
MH		 3714 }
3715
ccd556fe 3716unlock:
41a96212 3717 hci_dev_unlock(hdev);
a9de9248
MH		 3718}
3719
6039aa73
GP		 3720static void hci_sync_conn_complete_evt(struct hci_dev *hdev,
3721 struct sk_buff *skb)
a9de9248 3722{
b6a0dc82
MH		 3723 struct hci_ev_sync_conn_complete *ev = (void *) skb->data;
3724 struct hci_conn *conn;
3725
9f1db00c 3726 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
b6a0dc82
MH		 3727
3728 hci_dev_lock(hdev);
3729
3730 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9dc0a3af
MH		 3731 if (!conn) {
3732 if (ev->link_type == ESCO_LINK)
3733 goto unlock;
3734
618353b1
KP		 3735 /* When the link type in the event indicates SCO connection
3736 * and lookup of the connection object fails, then check
3737 * if an eSCO connection object exists.
3738 *
3739 * The core limits the synchronous connections to either
3740 * SCO or eSCO. The eSCO connection is preferred and tried
3741 * to be setup first and until successfully established,
3742 * the link type will be hinted as eSCO.
3743 */
9dc0a3af
MH		 3744 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
3745 if (!conn)
3746 goto unlock;
9dc0a3af 3747 }
b6a0dc82 3748
732547f9
MH		 3749 switch (ev->status) {
3750 case 0x00:
b6a0dc82
MH		 3751 conn->handle = __le16_to_cpu(ev->handle);
3752 conn->state = BT_CONNECTED;
618353b1 3753 conn->type = ev->link_type;
7d0db0a3 3754
23b9ceb7 3755 hci_debugfs_create_conn(conn);
7d0db0a3 3756 hci_conn_add_sysfs(conn);
732547f9
MH		 3757 break;
3758
81218d20 3759 case 0x10: /* Connection Accept Timeout */
1a4c958c 3760 case 0x0d: /* Connection Rejected due to Limited Resources */
705e5711 3761 case 0x11: /* Unsupported Feature or Parameter Value */
732547f9 3762 case 0x1c: /* SCO interval rejected */
1038a00b 3763 case 0x1a: /* Unsupported Remote Feature */
732547f9 3764 case 0x1f: /* Unspecified error */
27539bc4 3765 case 0x20: /* Unsupported LMP Parameter value */
2dea632f 3766 if (conn->out) {
732547f9
MH		 3767 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
3768 (hdev->esco_type & EDR_ESCO_MASK);
2dea632f
FD		 3769 if (hci_setup_sync(conn, conn->link->handle))
3770 goto unlock;
732547f9
MH		 3771 }
3772 /* fall through */
3773
3774 default:
b6a0dc82 3775 conn->state = BT_CLOSED;
732547f9
MH		 3776 break;
3777 }
b6a0dc82 3778
539c496d 3779 hci_connect_cfm(conn, ev->status);
b6a0dc82
MH		 3780 if (ev->status)
3781 hci_conn_del(conn);
3782
3783unlock:
3784 hci_dev_unlock(hdev);
a9de9248
MH		 3785}
3786
efdcf8e3
MH		 3787static inline size_t eir_get_length(u8 *eir, size_t eir_len)
3788{
3789 size_t parsed = 0;
3790
3791 while (parsed < eir_len) {
3792 u8 field_len = eir[0];
3793
3794 if (field_len == 0)
3795 return parsed;
3796
3797 parsed += field_len + 1;
3798 eir += field_len + 1;
3799 }
3800
3801 return eir_len;
3802}
3803
6039aa73
GP		 3804static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
3805 struct sk_buff *skb)
1da177e4 3806{
a9de9248
MH		 3807 struct inquiry_data data;
3808 struct extended_inquiry_info *info = (void *) (skb->data + 1);
3809 int num_rsp = *((__u8 *) skb->data);
9d939d94 3810 size_t eir_len;
1da177e4 3811
a9de9248 3812 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
1da177e4 3813
a9de9248
MH		 3814 if (!num_rsp)
3815 return;
1da177e4 3816
d7a5a11d 3817 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3818 return;
3819
a9de9248
MH		 3820 hci_dev_lock(hdev);
3821
e17acd40 3822 for (; num_rsp; num_rsp--, info++) {
af58925c
MH		 3823 u32 flags;
3824 bool name_known;
561aafbc 3825
a9de9248 3826 bacpy(&data.bdaddr, &info->bdaddr);
138d22ef
SJ		 3827 data.pscan_rep_mode = info->pscan_rep_mode;
3828 data.pscan_period_mode = info->pscan_period_mode;
3829 data.pscan_mode = 0x00;
a9de9248 3830 memcpy(data.dev_class, info->dev_class, 3);
138d22ef
SJ		 3831 data.clock_offset = info->clock_offset;
3832 data.rssi = info->rssi;
41a96212 3833 data.ssp_mode = 0x01;
561aafbc 3834
d7a5a11d 3835 if (hci_dev_test_flag(hdev, HCI_MGMT))
0d3b7f64
JH		 3836 name_known = eir_get_data(info->data,
3837 sizeof(info->data),
3838 EIR_NAME_COMPLETE, NULL);
561aafbc
JH		 3839 else
3840 name_known = true;
3841
af58925c
MH		 3842 flags = hci_inquiry_cache_update(hdev, &data, name_known);
3843
9d939d94 3844 eir_len = eir_get_length(info->data, sizeof(info->data));
af58925c 3845
48264f06 3846 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
af58925c
MH		 3847 info->dev_class, info->rssi,
3848 flags, info->data, eir_len, NULL, 0);
a9de9248
MH		 3849 }
3850
3851 hci_dev_unlock(hdev);
3852}
1da177e4 3853
1c2e0041
JH		 3854static void hci_key_refresh_complete_evt(struct hci_dev *hdev,
3855 struct sk_buff *skb)
3856{
3857 struct hci_ev_key_refresh_complete *ev = (void *) skb->data;
3858 struct hci_conn *conn;
3859
9f1db00c 3860 BT_DBG("%s status 0x%2.2x handle 0x%4.4x", hdev->name, ev->status,
1c2e0041
JH		 3861 __le16_to_cpu(ev->handle));
3862
3863 hci_dev_lock(hdev);
3864
3865 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
3866 if (!conn)
3867 goto unlock;
3868
9eb1fbfa
JH		 3869 /* For BR/EDR the necessary steps are taken through the
3870 * auth_complete event.
3871 */
3872 if (conn->type != LE_LINK)
3873 goto unlock;
3874
1c2e0041
JH		 3875 if (!ev->status)
3876 conn->sec_level = conn->pending_sec_level;
3877
3878 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3879
3880 if (ev->status && conn->state == BT_CONNECTED) {
bed71748 3881 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
76a68ba0 3882 hci_conn_drop(conn);
1c2e0041
JH		 3883 goto unlock;
3884 }
3885
3886 if (conn->state == BT_CONFIG) {
3887 if (!ev->status)
3888 conn->state = BT_CONNECTED;
3889
539c496d 3890 hci_connect_cfm(conn, ev->status);
76a68ba0 3891 hci_conn_drop(conn);
1c2e0041
JH		 3892 } else {
3893 hci_auth_cfm(conn, ev->status);
3894
3895 hci_conn_hold(conn);
3896 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 3897 hci_conn_drop(conn);
1c2e0041
JH		 3898 }
3899
3900unlock:
3901 hci_dev_unlock(hdev);
3902}
3903
6039aa73 3904static u8 hci_get_auth_req(struct hci_conn *conn)
17fa4b9d 3905{
17fa4b9d 3906 /* If remote requests no-bonding follow that lead */
acabae96
MA		 3907 if (conn->remote_auth == HCI_AT_NO_BONDING ||
3908 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
58797bf7 3909 return conn->remote_auth | (conn->auth_type & 0x01);
17fa4b9d 3910
b7f94c88
MA		 3911 /* If both remote and local have enough IO capabilities, require
3912 * MITM protection
3913 */
3914 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
3915 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
3916 return conn->remote_auth | 0x01;
3917
7e74170a
TM		 3918 /* No MITM protection possible so ignore remote requirement */
3919 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
17fa4b9d
JH		 3920}
3921
a83ed81e
MH		 3922static u8 bredr_oob_data_present(struct hci_conn *conn)
3923{
3924 struct hci_dev *hdev = conn->hdev;
3925 struct oob_data *data;
3926
3927 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
3928 if (!data)
3929 return 0x00;
3930
455c2ff0
MH		 3931 if (bredr_sc_enabled(hdev)) {
3932 /* When Secure Connections is enabled, then just
3933 * return the present value stored with the OOB
3934 * data. The stored value contains the right present
3935 * information. However it can only be trusted when
3936 * not in Secure Connection Only mode.
3937 */
3938 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
3939 return data->present;
659c7fb0 3940
455c2ff0
MH		 3941 /* When Secure Connections Only mode is enabled, then
3942 * the P-256 values are required. If they are not
3943 * available, then do not declare that OOB data is
3944 * present.
659c7fb0 3945 */
455c2ff0
MH		 3946 if (!memcmp(data->rand256, ZERO_KEY, 16) ||
3947 !memcmp(data->hash256, ZERO_KEY, 16))
659c7fb0
MH		 3948 return 0x00;
3949
455c2ff0 3950 return 0x02;
659c7fb0 3951 }
a83ed81e 3952
455c2ff0
MH		 3953 /* When Secure Connections is not enabled or actually
3954 * not supported by the hardware, then check that if
3955 * P-192 data values are present.
3956 */
3957 if (!memcmp(data->rand192, ZERO_KEY, 16) ||
3958 !memcmp(data->hash192, ZERO_KEY, 16))
3959 return 0x00;
3960
3961 return 0x01;
a83ed81e
MH		 3962}
3963
6039aa73 3964static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
0493684e
MH		 3965{
3966 struct hci_ev_io_capa_request *ev = (void *) skb->data;
3967 struct hci_conn *conn;
3968
3969 BT_DBG("%s", hdev->name);
3970
3971 hci_dev_lock(hdev);
3972
3973 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
03b555e1
JH		 3974 if (!conn)
3975 goto unlock;
3976
3977 hci_conn_hold(conn);
3978
d7a5a11d 3979 if (!hci_dev_test_flag(hdev, HCI_MGMT))
03b555e1
JH		 3980 goto unlock;
3981
2f407f0a
JH		 3982 /* Allow pairing if we're pairable, the initiators of the
3983 * pairing or if the remote is not requesting bonding.
3984 */
d7a5a11d 3985 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
2f407f0a 3986 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
807deac2 3987 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
17fa4b9d
JH		 3988 struct hci_cp_io_capability_reply cp;
3989
3990 bacpy(&cp.bdaddr, &ev->bdaddr);
7a7f1e7c
HG		 3991 /* Change the IO capability from KeyboardDisplay
3992 * to DisplayYesNo as it is not supported by BT spec. */
3993 cp.capability = (conn->io_capability == 0x04) ?
a767631a 3994 HCI_IO_DISPLAY_YESNO : conn->io_capability;
b7f94c88
MA		 3995
3996 /* If we are initiators, there is no remote information yet */
3997 if (conn->remote_auth == 0xff) {
b16c6604 3998 /* Request MITM protection if our IO caps allow it
4ad51a75 3999 * except for the no-bonding case.
b16c6604 4000 */
6fd6b915 4001 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
9f743d74 4002 conn->auth_type != HCI_AT_NO_BONDING)
6c53823a 4003 conn->auth_type |= 0x01;
b7f94c88
MA		 4004 } else {
4005 conn->auth_type = hci_get_auth_req(conn);
b7f94c88 4006 }
17fa4b9d 4007
82c295b1
JH		 4008 /* If we're not bondable, force one of the non-bondable
4009 * authentication requirement values.
4010 */
d7a5a11d 4011 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
82c295b1
JH		 4012 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
4013
4014 cp.authentication = conn->auth_type;
a83ed81e 4015 cp.oob_data = bredr_oob_data_present(conn);
ce85ee13 4016
17fa4b9d 4017 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
807deac2 4018 sizeof(cp), &cp);
03b555e1
JH		 4019 } else {
4020 struct hci_cp_io_capability_neg_reply cp;
4021
4022 bacpy(&cp.bdaddr, &ev->bdaddr);
9f5a0d7b 4023 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
0493684e 4024
03b555e1 4025 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
807deac2 4026 sizeof(cp), &cp);
03b555e1
JH		 4027 }
4028
4029unlock:
4030 hci_dev_unlock(hdev);
4031}
4032
6039aa73 4033static void hci_io_capa_reply_evt(struct hci_dev *hdev, struct sk_buff *skb)
03b555e1
JH		 4034{
4035 struct hci_ev_io_capa_reply *ev = (void *) skb->data;
4036 struct hci_conn *conn;
4037
4038 BT_DBG("%s", hdev->name);
4039
4040 hci_dev_lock(hdev);
4041
4042 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4043 if (!conn)
4044 goto unlock;
4045
03b555e1 4046 conn->remote_cap = ev->capability;
03b555e1
JH		 4047 conn->remote_auth = ev->authentication;
4048
4049unlock:
0493684e
MH		 4050 hci_dev_unlock(hdev);
4051}
4052
6039aa73
GP		 4053static void hci_user_confirm_request_evt(struct hci_dev *hdev,
4054 struct sk_buff *skb)
a5c29683
JH		 4055{
4056 struct hci_ev_user_confirm_req *ev = (void *) skb->data;
55bc1a37 4057 int loc_mitm, rem_mitm, confirm_hint = 0;
7a828908 4058 struct hci_conn *conn;
a5c29683
JH		 4059
4060 BT_DBG("%s", hdev->name);
4061
4062 hci_dev_lock(hdev);
4063
d7a5a11d 4064 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7a828908 4065 goto unlock;
a5c29683 4066
7a828908
JH		 4067 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4068 if (!conn)
4069 goto unlock;
4070
4071 loc_mitm = (conn->auth_type & 0x01);
4072 rem_mitm = (conn->remote_auth & 0x01);
4073
4074 /* If we require MITM but the remote device can't provide that
6c53823a
JH		 4075 * (it has NoInputNoOutput) then reject the confirmation
4076 * request. We check the security level here since it doesn't
4077 * necessarily match conn->auth_type.
6fd6b915 4078 */
6c53823a
JH		 4079 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
4080 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
7a828908
JH		 4081 BT_DBG("Rejecting request: remote device can't provide MITM");
4082 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
807deac2 4083 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4084 goto unlock;
4085 }
4086
4087 /* If no side requires MITM protection; auto-accept */
a767631a
MA		 4088 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
4089 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
55bc1a37
JH		 4090
4091 /* If we're not the initiators request authorization to
4092 * proceed from user space (mgmt_user_confirm with
ba15a58b 4093 * confirm_hint set to 1). The exception is if neither
02f3e254
JH		 4094 * side had MITM or if the local IO capability is
4095 * NoInputNoOutput, in which case we do auto-accept
ba15a58b
JH		 4096 */
4097 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
02f3e254 4098 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
ba15a58b 4099 (loc_mitm || rem_mitm)) {
55bc1a37
JH		 4100 BT_DBG("Confirming auto-accept as acceptor");
4101 confirm_hint = 1;
4102 goto confirm;
4103 }
4104
9f61656a 4105 BT_DBG("Auto-accept of user confirmation with %ums delay",
807deac2 4106 hdev->auto_accept_delay);
9f61656a
JH		 4107
4108 if (hdev->auto_accept_delay > 0) {
4109 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
7bc18d9d
JH		 4110 queue_delayed_work(conn->hdev->workqueue,
4111 &conn->auto_accept_work, delay);
9f61656a
JH		 4112 goto unlock;
4113 }
4114
7a828908 4115 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
807deac2 4116 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 4117 goto unlock;
4118 }
4119
55bc1a37 4120confirm:
39adbffe
JH		 4121 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
4122 le32_to_cpu(ev->passkey), confirm_hint);
7a828908
JH		 4123
4124unlock:
a5c29683
JH		 4125 hci_dev_unlock(hdev);
4126}
4127
6039aa73
GP		 4128static void hci_user_passkey_request_evt(struct hci_dev *hdev,
4129 struct sk_buff *skb)
1143d458
BG		 4130{
4131 struct hci_ev_user_passkey_req *ev = (void *) skb->data;
4132
4133 BT_DBG("%s", hdev->name);
4134
d7a5a11d 4135 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 4136 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
1143d458
BG		 4137}
4138
92a25256
JH		 4139static void hci_user_passkey_notify_evt(struct hci_dev *hdev,
4140 struct sk_buff *skb)
4141{
4142 struct hci_ev_user_passkey_notify *ev = (void *) skb->data;
4143 struct hci_conn *conn;
4144
4145 BT_DBG("%s", hdev->name);
4146
4147 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4148 if (!conn)
4149 return;
4150
4151 conn->passkey_notify = __le32_to_cpu(ev->passkey);
4152 conn->passkey_entered = 0;
4153
d7a5a11d 4154 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4155 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4156 conn->dst_type, conn->passkey_notify,
4157 conn->passkey_entered);
4158}
4159
4160static void hci_keypress_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
4161{
4162 struct hci_ev_keypress_notify *ev = (void *) skb->data;
4163 struct hci_conn *conn;
4164
4165 BT_DBG("%s", hdev->name);
4166
4167 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4168 if (!conn)
4169 return;
4170
4171 switch (ev->type) {
4172 case HCI_KEYPRESS_STARTED:
4173 conn->passkey_entered = 0;
4174 return;
4175
4176 case HCI_KEYPRESS_ENTERED:
4177 conn->passkey_entered++;
4178 break;
4179
4180 case HCI_KEYPRESS_ERASED:
4181 conn->passkey_entered--;
4182 break;
4183
4184 case HCI_KEYPRESS_CLEARED:
4185 conn->passkey_entered = 0;
4186 break;
4187
4188 case HCI_KEYPRESS_COMPLETED:
4189 return;
4190 }
4191
d7a5a11d 4192 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 4193 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
4194 conn->dst_type, conn->passkey_notify,
4195 conn->passkey_entered);
4196}
4197
6039aa73
GP		 4198static void hci_simple_pair_complete_evt(struct hci_dev *hdev,
4199 struct sk_buff *skb)
0493684e
MH		 4200{
4201 struct hci_ev_simple_pair_complete *ev = (void *) skb->data;
4202 struct hci_conn *conn;
4203
4204 BT_DBG("%s", hdev->name);
4205
4206 hci_dev_lock(hdev);
4207
4208 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
2a611692
JH		 4209 if (!conn)
4210 goto unlock;
4211
c1d4fa7a
JH		 4212 /* Reset the authentication requirement to unknown */
4213 conn->remote_auth = 0xff;
4214
2a611692
JH		 4215 /* To avoid duplicate auth_failed events to user space we check
4216 * the HCI_CONN_AUTH_PEND flag which will be set if we
4217 * initiated the authentication. A traditional auth_complete
4218 * event gets always produced as initiator and is also mapped to
4219 * the mgmt_auth_failed event */
fa1bd918 4220 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
e1e930f5 4221 mgmt_auth_failed(conn, ev->status);
0493684e 4222
76a68ba0 4223 hci_conn_drop(conn);
2a611692
JH		 4224
4225unlock:
0493684e
MH		 4226 hci_dev_unlock(hdev);
4227}
4228
6039aa73
GP		 4229static void hci_remote_host_features_evt(struct hci_dev *hdev,
4230 struct sk_buff *skb)
41a96212
MH		 4231{
4232 struct hci_ev_remote_host_features *ev = (void *) skb->data;
4233 struct inquiry_entry *ie;
cad718ed 4234 struct hci_conn *conn;
41a96212
MH		 4235
4236 BT_DBG("%s", hdev->name);
4237
4238 hci_dev_lock(hdev);
4239
cad718ed
JH		 4240 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4241 if (conn)
4242 memcpy(conn->features[1], ev->features, 8);
4243
cc11b9c1
AE		 4244 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4245 if (ie)
02b7cc62 4246 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
41a96212
MH		 4247
4248 hci_dev_unlock(hdev);
4249}
4250
6039aa73
GP		 4251static void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
4252 struct sk_buff *skb)
2763eda6
SJ		 4253{
4254 struct hci_ev_remote_oob_data_request *ev = (void *) skb->data;
4255 struct oob_data *data;
4256
4257 BT_DBG("%s", hdev->name);
4258
4259 hci_dev_lock(hdev);
4260
d7a5a11d 4261 if (!hci_dev_test_flag(hdev, HCI_MGMT))
e1ba1f15
SJ		 4262 goto unlock;
4263
6928a924 4264 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
6665d057
MH		 4265 if (!data) {
4266 struct hci_cp_remote_oob_data_neg_reply cp;
519ca9d0 4267
6665d057
MH		 4268 bacpy(&cp.bdaddr, &ev->bdaddr);
4269 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
4270 sizeof(cp), &cp);
4271 goto unlock;
4272 }
2763eda6 4273
6665d057
MH		 4274 if (bredr_sc_enabled(hdev)) {
4275 struct hci_cp_remote_oob_ext_data_reply cp;
519ca9d0 4276
6665d057 4277 bacpy(&cp.bdaddr, &ev->bdaddr);
d7a5a11d 4278 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6665d057
MH		 4279 memset(cp.hash192, 0, sizeof(cp.hash192));
4280 memset(cp.rand192, 0, sizeof(cp.rand192));
4281 } else {
4282 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
4283 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
519ca9d0 4284 }
6665d057
MH		 4285 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
4286 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
4287
4288 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
4289 sizeof(cp), &cp);
2763eda6 4290 } else {
6665d057 4291 struct hci_cp_remote_oob_data_reply cp;
2763eda6
SJ		 4292
4293 bacpy(&cp.bdaddr, &ev->bdaddr);
6665d057
MH		 4294 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
4295 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
4296
4297 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
519ca9d0 4298 sizeof(cp), &cp);
2763eda6
SJ		 4299 }
4300
e1ba1f15 4301unlock:
2763eda6
SJ		 4302 hci_dev_unlock(hdev);
4303}
4304
a77a6a14
AW		 4305#if IS_ENABLED(CONFIG_BT_HS)
4306static void hci_chan_selected_evt(struct hci_dev *hdev, struct sk_buff *skb)
4307{
4308 struct hci_ev_channel_selected *ev = (void *)skb->data;
4309 struct hci_conn *hcon;
4310
4311 BT_DBG("%s handle 0x%2.2x", hdev->name, ev->phy_handle);
4312
4313 skb_pull(skb, sizeof(*ev));
4314
4315 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4316 if (!hcon)
4317 return;
4318
4319 amp_read_loc_assoc_final_data(hdev, hcon);
4320}
4321
d5e91192
AE		 4322static void hci_phy_link_complete_evt(struct hci_dev *hdev,
4323 struct sk_buff *skb)
4324{
4325 struct hci_ev_phy_link_complete *ev = (void *) skb->data;
4326 struct hci_conn *hcon, *bredr_hcon;
4327
4328 BT_DBG("%s handle 0x%2.2x status 0x%2.2x", hdev->name, ev->phy_handle,
4329 ev->status);
4330
4331 hci_dev_lock(hdev);
4332
4333 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4334 if (!hcon) {
4335 hci_dev_unlock(hdev);
4336 return;
4337 }
4338
4339 if (ev->status) {
4340 hci_conn_del(hcon);
4341 hci_dev_unlock(hdev);
4342 return;
4343 }
4344
4345 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
4346
4347 hcon->state = BT_CONNECTED;
4348 bacpy(&hcon->dst, &bredr_hcon->dst);
4349
4350 hci_conn_hold(hcon);
4351 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 4352 hci_conn_drop(hcon);
d5e91192 4353
23b9ceb7 4354 hci_debugfs_create_conn(hcon);
d5e91192
AE		 4355 hci_conn_add_sysfs(hcon);
4356
cf70ff22 4357 amp_physical_cfm(bredr_hcon, hcon);
d5e91192 4358
cf70ff22 4359 hci_dev_unlock(hdev);
d5e91192
AE		 4360}
4361
27695fb4
AE		 4362static void hci_loglink_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
4363{
4364 struct hci_ev_logical_link_complete *ev = (void *) skb->data;
4365 struct hci_conn *hcon;
4366 struct hci_chan *hchan;
4367 struct amp_mgr *mgr;
4368
4369 BT_DBG("%s log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
4370 hdev->name, le16_to_cpu(ev->handle), ev->phy_handle,
4371 ev->status);
4372
4373 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4374 if (!hcon)
4375 return;
4376
4377 /* Create AMP hchan */
4378 hchan = hci_chan_create(hcon);
4379 if (!hchan)
4380 return;
4381
4382 hchan->handle = le16_to_cpu(ev->handle);
4383
4384 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
4385
4386 mgr = hcon->amp_mgr;
4387 if (mgr && mgr->bredr_chan) {
4388 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
4389
4390 l2cap_chan_lock(bredr_chan);
4391
4392 bredr_chan->conn->mtu = hdev->block_mtu;
4393 l2cap_logical_cfm(bredr_chan, hchan, 0);
4394 hci_conn_hold(hcon);
4395
4396 l2cap_chan_unlock(bredr_chan);
4397 }
4398}
4399
606e2a10
AE		 4400static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev,
4401 struct sk_buff *skb)
4402{
4403 struct hci_ev_disconn_logical_link_complete *ev = (void *) skb->data;
4404 struct hci_chan *hchan;
4405
4406 BT_DBG("%s log handle 0x%4.4x status 0x%2.2x", hdev->name,
4407 le16_to_cpu(ev->handle), ev->status);
4408
4409 if (ev->status)
4410 return;
4411
4412 hci_dev_lock(hdev);
4413
4414 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
4415 if (!hchan)
4416 goto unlock;
4417
4418 amp_destroy_logical_link(hchan, ev->reason);
4419
4420unlock:
4421 hci_dev_unlock(hdev);
4422}
4423
9eef6b3a
AE		 4424static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev,
4425 struct sk_buff *skb)
4426{
4427 struct hci_ev_disconn_phy_link_complete *ev = (void *) skb->data;
4428 struct hci_conn *hcon;
4429
4430 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4431
4432 if (ev->status)
4433 return;
4434
4435 hci_dev_lock(hdev);
4436
4437 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
4438 if (hcon) {
4439 hcon->state = BT_CLOSED;
4440 hci_conn_del(hcon);
4441 }
4442
4443 hci_dev_unlock(hdev);
4444}
a77a6a14 4445#endif
9eef6b3a 4446
6039aa73 4447static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 4448{
4449 struct hci_ev_le_conn_complete *ev = (void *) skb->data;
912b42ef 4450 struct hci_conn_params *params;
fcd89c09 4451 struct hci_conn *conn;
68d6f6de 4452 struct smp_irk *irk;
837d502e 4453 u8 addr_type;
fcd89c09 4454
9f1db00c 4455 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
fcd89c09
VT		 4456
4457 hci_dev_lock(hdev);
4458
fbd96c15
JH		 4459 /* All controllers implicitly stop advertising in the event of a
4460 * connection, so ensure that the state bit is cleared.
4461 */
a358dc11 4462 hci_dev_clear_flag(hdev, HCI_LE_ADV);
fbd96c15 4463
e7d9ab73 4464 conn = hci_lookup_le_connect(hdev);
b62f328b 4465 if (!conn) {
a5c4e309 4466 conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role);
b62f328b
VT		 4467 if (!conn) {
4468 BT_ERR("No memory for new connection");
230fd16a 4469 goto unlock;
b62f328b 4470 }
29b7988a
AG		 4471
4472 conn->dst_type = ev->bdaddr_type;
b9b343d2 4473
cb1d68f7
JH		 4474 /* If we didn't have a hci_conn object previously
4475 * but we're in master role this must be something
4476 * initiated using a white list. Since white list based
4477 * connections are not "first class citizens" we don't
4478 * have full tracking of them. Therefore, we go ahead
4479 * with a "best effort" approach of determining the
4480 * initiator address based on the HCI_PRIVACY flag.
4481 */
4482 if (conn->out) {
4483 conn->resp_addr_type = ev->bdaddr_type;
4484 bacpy(&conn->resp_addr, &ev->bdaddr);
d7a5a11d 4485 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
cb1d68f7
JH		 4486 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
4487 bacpy(&conn->init_addr, &hdev->rpa);
4488 } else {
4489 hci_copy_identity_address(hdev,
4490 &conn->init_addr,
4491 &conn->init_addr_type);
4492 }
cb1d68f7 4493 }
9489eca4
JH		 4494 } else {
4495 cancel_delayed_work(&conn->le_conn_timeout);
b62f328b 4496 }
fcd89c09 4497
80c24ab8
JH		 4498 if (!conn->out) {
4499 /* Set the responder (our side) address type based on
4500 * the advertising address type.
4501 */
4502 conn->resp_addr_type = hdev->adv_addr_type;
4503 if (hdev->adv_addr_type == ADDR_LE_DEV_RANDOM)
4504 bacpy(&conn->resp_addr, &hdev->random_addr);
4505 else
4506 bacpy(&conn->resp_addr, &hdev->bdaddr);
4507
4508 conn->init_addr_type = ev->bdaddr_type;
4509 bacpy(&conn->init_addr, &ev->bdaddr);
a720d735
MH		 4510
4511 /* For incoming connections, set the default minimum
4512 * and maximum connection interval. They will be used
4513 * to check if the parameters are in range and if not
4514 * trigger the connection update procedure.
4515 */
4516 conn->le_conn_min_interval = hdev->le_conn_min_interval;
4517 conn->le_conn_max_interval = hdev->le_conn_max_interval;
80c24ab8 4518 }
7be2edbb 4519
edb4b466
MH		 4520 /* Lookup the identity address from the stored connection
4521 * address and address type.
4522 *
4523 * When establishing connections to an identity address, the
4524 * connection procedure will store the resolvable random
4525 * address first. Now if it can be converted back into the
4526 * identity address, start using the identity address from
4527 * now on.
4528 */
4529 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
68d6f6de
JH		 4530 if (irk) {
4531 bacpy(&conn->dst, &irk->bdaddr);
4532 conn->dst_type = irk->addr_type;
4533 }
4534
2d3c2260
JH		 4535 if (ev->status) {
4536 hci_le_conn_failed(conn, ev->status);
837d502e
JH		 4537 goto unlock;
4538 }
4539
08853f18
JH		 4540 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
4541 addr_type = BDADDR_LE_PUBLIC;
4542 else
4543 addr_type = BDADDR_LE_RANDOM;
4544
2d3c2260
JH		 4545 /* Drop the connection if the device is blocked */
4546 if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) {
4547 hci_conn_drop(conn);
cd17decb
AG		 4548 goto unlock;
4549 }
4550
b644ba33 4551 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
48ec92fa 4552 mgmt_device_connected(hdev, conn, 0, NULL, 0);
83bc71b4 4553
7b5c0d52 4554 conn->sec_level = BT_SECURITY_LOW;
fcd89c09 4555 conn->handle = __le16_to_cpu(ev->handle);
0fe29fd1 4556 conn->state = BT_CONFIG;
fcd89c09 4557
e04fde60
MH		 4558 conn->le_conn_interval = le16_to_cpu(ev->interval);
4559 conn->le_conn_latency = le16_to_cpu(ev->latency);
4560 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4561
23b9ceb7 4562 hci_debugfs_create_conn(conn);
fcd89c09
VT		 4563 hci_conn_add_sysfs(conn);
4564
0fe29fd1
MH		 4565 if (!ev->status) {
4566 /* The remote features procedure is defined for master
4567 * role only. So only in case of an initiated connection
4568 * request the remote features.
4569 *
4570 * If the local controller supports slave-initiated features
4571 * exchange, then requesting the remote features in slave
4572 * role is possible. Otherwise just transition into the
4573 * connected state without requesting the remote features.
4574 */
4575 if (conn->out ||
4576 (hdev->le_features[0] & HCI_LE_SLAVE_FEATURES)) {
4577 struct hci_cp_le_read_remote_features cp;
4578
4579 cp.handle = __cpu_to_le16(conn->handle);
4580
4581 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
4582 sizeof(cp), &cp);
4583
4584 hci_conn_hold(conn);
4585 } else {
4586 conn->state = BT_CONNECTED;
4587 hci_connect_cfm(conn, ev->status);
4588 }
4589 } else {
4590 hci_connect_cfm(conn, ev->status);
4591 }
fcd89c09 4592
5477610f
JH		 4593 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
4594 conn->dst_type);
f161dd41 4595 if (params) {
95305baa 4596 list_del_init(&params->action);
f161dd41
JH		 4597 if (params->conn) {
4598 hci_conn_drop(params->conn);
f8aaf9b6 4599 hci_conn_put(params->conn);
f161dd41
JH		 4600 params->conn = NULL;
4601 }
4602 }
a4790dbd 4603
fcd89c09 4604unlock:
223683a5 4605 hci_update_background_scan(hdev);
fcd89c09
VT		 4606 hci_dev_unlock(hdev);
4607}
4608
1855d92d
MH		 4609static void hci_le_conn_update_complete_evt(struct hci_dev *hdev,
4610 struct sk_buff *skb)
4611{
4612 struct hci_ev_le_conn_update_complete *ev = (void *) skb->data;
4613 struct hci_conn *conn;
4614
4615 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4616
4617 if (ev->status)
4618 return;
4619
4620 hci_dev_lock(hdev);
4621
4622 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4623 if (conn) {
4624 conn->le_conn_interval = le16_to_cpu(ev->interval);
4625 conn->le_conn_latency = le16_to_cpu(ev->latency);
4626 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
4627 }
4628
4629 hci_dev_unlock(hdev);
4630}
4631
a4790dbd 4632/* This function requires the caller holds hdev->lock */
fd45ada9
AA		 4633static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
4634 bdaddr_t *addr,
4635 u8 addr_type, u8 adv_type)
a4790dbd
AG		 4636{
4637 struct hci_conn *conn;
4b9e7e75 4638 struct hci_conn_params *params;
a4790dbd 4639
1c1abcab
JH		 4640 /* If the event is not connectable don't proceed further */
4641 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
fd45ada9 4642 return NULL;
1c1abcab
JH		 4643
4644 /* Ignore if the device is blocked */
dcc36c16 4645 if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type))
fd45ada9 4646 return NULL;
1c1abcab 4647
f99353cf
JH		 4648 /* Most controller will fail if we try to create new connections
4649 * while we have an existing one in slave role.
4650 */
4651 if (hdev->conn_hash.le_num_slave > 0)
fd45ada9 4652 return NULL;
f99353cf 4653
1c1abcab
JH		 4654 /* If we're not connectable only connect devices that we have in
4655 * our pend_le_conns list.
4656 */
49c50922
JH		 4657 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
4658 addr_type);
4b9e7e75 4659 if (!params)
fd45ada9 4660 return NULL;
4b9e7e75 4661
28a667c9
JP		 4662 if (!params->explicit_connect) {
4663 switch (params->auto_connect) {
4664 case HCI_AUTO_CONN_DIRECT:
4665 /* Only devices advertising with ADV_DIRECT_IND are
4666 * triggering a connection attempt. This is allowing
4667 * incoming connections from slave devices.
4668 */
4669 if (adv_type != LE_ADV_DIRECT_IND)
4670 return NULL;
4671 break;
4672 case HCI_AUTO_CONN_ALWAYS:
4673 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
4674 * are triggering a connection attempt. This means
4675 * that incoming connectioms from slave device are
4676 * accepted and also outgoing connections to slave
4677 * devices are established when found.
4678 */
4679 break;
4680 default:
fd45ada9 4681 return NULL;
28a667c9 4682 }
4b9e7e75 4683 }
a4790dbd
AG		 4684
4685 conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW,
e804d25d 4686 HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER);
f161dd41 4687 if (!IS_ERR(conn)) {
28a667c9
JP		 4688 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
4689 * by higher layer that tried to connect, if no then
4690 * store the pointer since we don't really have any
f161dd41
JH		 4691 * other owner of the object besides the params that
4692 * triggered it. This way we can abort the connection if
4693 * the parameters get removed and keep the reference
4694 * count consistent once the connection is established.
4695 */
28a667c9
JP		 4696
4697 if (!params->explicit_connect)
4698 params->conn = hci_conn_get(conn);
4699
fd45ada9 4700 return conn;
f161dd41 4701 }
a4790dbd
AG		 4702
4703 switch (PTR_ERR(conn)) {
4704 case -EBUSY:
4705 /* If hci_connect() returns -EBUSY it means there is already
4706 * an LE connection attempt going on. Since controllers don't
4707 * support more than one connection attempt at the time, we
4708 * don't consider this an error case.
4709 */
4710 break;
4711 default:
4712 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
fd45ada9 4713 return NULL;
a4790dbd 4714 }
fd45ada9
AA		 4715
4716 return NULL;
a4790dbd
AG		 4717}
4718
4af605d8 4719static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
2f010b55
MH		 4720 u8 bdaddr_type, bdaddr_t *direct_addr,
4721 u8 direct_addr_type, s8 rssi, u8 *data, u8 len)
4af605d8 4722{
b9a6328f 4723 struct discovery_state *d = &hdev->discovery;
1c1abcab 4724 struct smp_irk *irk;
fd45ada9 4725 struct hci_conn *conn;
474ee066 4726 bool match;
c70a7e4c 4727 u32 flags;
6818375e
SJ		 4728 u8 *ptr, real_len;
4729
56b40fbf
JH		 4730 switch (type) {
4731 case LE_ADV_IND:
4732 case LE_ADV_DIRECT_IND:
4733 case LE_ADV_SCAN_IND:
4734 case LE_ADV_NONCONN_IND:
4735 case LE_ADV_SCAN_RSP:
4736 break;
4737 default:
4738 BT_ERR_RATELIMITED("Unknown advetising packet type: 0x%02x",
4739 type);
4740 return;
4741 }
4742
6818375e
SJ		 4743 /* Find the end of the data in case the report contains padded zero
4744 * bytes at the end causing an invalid length value.
4745 *
4746 * When data is NULL, len is 0 so there is no need for extra ptr
4747 * check as 'ptr < data + 0' is already false in such case.
4748 */
4749 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
4750 if (ptr + 1 + *ptr > data + len)
4751 break;
4752 }
4753
4754 real_len = ptr - data;
4755
4756 /* Adjust for actual length */
4757 if (len != real_len) {
4758 BT_ERR_RATELIMITED("%s advertising data length corrected",
4759 hdev->name);
4760 len = real_len;
4761 }
b9a6328f 4762
2f010b55
MH		 4763 /* If the direct address is present, then this report is from
4764 * a LE Direct Advertising Report event. In that case it is
4765 * important to see if the address is matching the local
4766 * controller address.
4767 */
4768 if (direct_addr) {
4769 /* Only resolvable random addresses are valid for these
4770 * kind of reports and others can be ignored.
4771 */
4772 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
4773 return;
4774
4775 /* If the controller is not using resolvable random
4776 * addresses, then this report can be ignored.
4777 */
d7a5a11d 4778 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
2f010b55
MH		 4779 return;
4780
4781 /* If the local IRK of the controller does not match
4782 * with the resolvable random address provided, then
4783 * this report can be ignored.
4784 */
4785 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
4786 return;
4787 }
4788
1c1abcab
JH		 4789 /* Check if we need to convert to identity address */
4790 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
4791 if (irk) {
4792 bdaddr = &irk->bdaddr;
4793 bdaddr_type = irk->addr_type;
4794 }
4795
4796 /* Check if we have been requested to connect to this device */
fd45ada9
AA		 4797 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, type);
4798 if (conn && type == LE_ADV_IND) {
4799 /* Store report for later inclusion by
4800 * mgmt_device_connected
4801 */
4802 memcpy(conn->le_adv_data, data, len);
4803 conn->le_adv_data_len = len;
4804 }
1c1abcab 4805
0d2bf134
JH		 4806 /* Passive scanning shouldn't trigger any device found events,
4807 * except for devices marked as CONN_REPORT for which we do send
4808 * device found events.
4809 */
ca5c4be7 4810 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
0d2bf134
JH		 4811 if (type == LE_ADV_DIRECT_IND)
4812 return;
4813
3a19b6fe
JH		 4814 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
4815 bdaddr, bdaddr_type))
0d2bf134
JH		 4816 return;
4817
4818 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
4819 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4820 else
4821 flags = 0;
4822 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
4823 rssi, flags, data, len, NULL, 0);
97bf2e99 4824 return;
ca5c4be7 4825 }
4af605d8 4826
c70a7e4c
MH		 4827 /* When receiving non-connectable or scannable undirected
4828 * advertising reports, this means that the remote device is
4829 * not connectable and then clearly indicate this in the
4830 * device found event.
4831 *
4832 * When receiving a scan response, then there is no way to
4833 * know if the remote device is connectable or not. However
4834 * since scan responses are merged with a previously seen
4835 * advertising report, the flags field from that report
4836 * will be used.
4837 *
4838 * In the really unlikely case that a controller get confused
4839 * and just sends a scan response event, then it is marked as
4840 * not connectable as well.
4841 */
4842 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND ||
4843 type == LE_ADV_SCAN_RSP)
4844 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
4845 else
4846 flags = 0;
4847
b9a6328f
JH		 4848 /* If there's nothing pending either store the data from this
4849 * event or send an immediate device found event if the data
4850 * should not be stored for later.
4851 */
4852 if (!has_pending_adv_report(hdev)) {
4853 /* If the report will trigger a SCAN_REQ store it for
4854 * later merging.
4855 */
4856 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4857 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4858 rssi, flags, data, len);
b9a6328f
JH		 4859 return;
4860 }
4861
4862 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4863 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4864 return;
4865 }
4866
474ee066
JH		 4867 /* Check if the pending report is for the same device as the new one */
4868 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
4869 bdaddr_type == d->last_adv_addr_type);
4870
b9a6328f
JH		 4871 /* If the pending data doesn't match this report or this isn't a
4872 * scan response (e.g. we got a duplicate ADV_IND) then force
4873 * sending of the pending data.
4874 */
474ee066
JH		 4875 if (type != LE_ADV_SCAN_RSP || !match) {
4876 /* Send out whatever is in the cache, but skip duplicates */
4877 if (!match)
4878 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ff5cd29f 4879 d->last_adv_addr_type, NULL,
c70a7e4c 4880 d->last_adv_rssi, d->last_adv_flags,
ff5cd29f 4881 d->last_adv_data,
474ee066 4882 d->last_adv_data_len, NULL, 0);
b9a6328f
JH		 4883
4884 /* If the new report will trigger a SCAN_REQ store it for
4885 * later merging.
4886 */
4887 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
4888 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 4889 rssi, flags, data, len);
b9a6328f
JH		 4890 return;
4891 }
4892
4893 /* The advertising reports cannot be merged, so clear
4894 * the pending report and send out a device found event.
4895 */
4896 clear_pending_adv_report(hdev);
5c5b93e4 4897 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
c70a7e4c 4898 rssi, flags, data, len, NULL, 0);
b9a6328f
JH		 4899 return;
4900 }
4901
4902 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
4903 * the new event is a SCAN_RSP. We can therefore proceed with
4904 * sending a merged device found event.
4905 */
4906 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
c70a7e4c 4907 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
42bd6a56 4908 d->last_adv_data, d->last_adv_data_len, data, len);
b9a6328f 4909 clear_pending_adv_report(hdev);
4af605d8
JH		 4910}
4911
6039aa73 4912static void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb)
9aa04c91 4913{
e95beb41
AG		 4914 u8 num_reports = skb->data[0];
4915 void *ptr = &skb->data[1];
9aa04c91 4916
a4790dbd
AG		 4917 hci_dev_lock(hdev);
4918
e95beb41
AG		 4919 while (num_reports--) {
4920 struct hci_ev_le_advertising_info *ev = ptr;
4af605d8 4921 s8 rssi;
a4790dbd 4922
3c9e9195 4923 rssi = ev->data[ev->length];
4af605d8 4924 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
2f010b55
MH		 4925 ev->bdaddr_type, NULL, 0, rssi,
4926 ev->data, ev->length);
3c9e9195 4927
e95beb41 4928 ptr += sizeof(*ev) + ev->length + 1;
9aa04c91 4929 }
a4790dbd
AG		 4930
4931 hci_dev_unlock(hdev);
9aa04c91
AG		 4932}
4933
0fe29fd1
MH		 4934static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev,
4935 struct sk_buff *skb)
4936{
4937 struct hci_ev_le_remote_feat_complete *ev = (void *)skb->data;
4938 struct hci_conn *conn;
4939
4940 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
4941
4942 hci_dev_lock(hdev);
4943
4944 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4945 if (conn) {
4946 if (!ev->status)
4947 memcpy(conn->features[0], ev->features, 8);
4948
4949 if (conn->state == BT_CONFIG) {
4950 __u8 status;
4951
4952 /* If the local controller supports slave-initiated
4953 * features exchange, but the remote controller does
4954 * not, then it is possible that the error code 0x1a
4955 * for unsupported remote feature gets returned.
4956 *
4957 * In this specific case, allow the connection to
4958 * transition into connected state and mark it as
4959 * successful.
4960 */
4961 if ((hdev->le_features[0] & HCI_LE_SLAVE_FEATURES) &&
4962 !conn->out && ev->status == 0x1a)
4963 status = 0x00;
4964 else
4965 status = ev->status;
4966
4967 conn->state = BT_CONNECTED;
4968 hci_connect_cfm(conn, status);
4969 hci_conn_drop(conn);
4970 }
4971 }
4972
4973 hci_dev_unlock(hdev);
4974}
4975
6039aa73 4976static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
a7a595f6
VCG		 4977{
4978 struct hci_ev_le_ltk_req *ev = (void *) skb->data;
4979 struct hci_cp_le_ltk_reply cp;
bea710fe 4980 struct hci_cp_le_ltk_neg_reply neg;
a7a595f6 4981 struct hci_conn *conn;
c9839a11 4982 struct smp_ltk *ltk;
a7a595f6 4983
9f1db00c 4984 BT_DBG("%s handle 0x%4.4x", hdev->name, __le16_to_cpu(ev->handle));
a7a595f6
VCG		 4985
4986 hci_dev_lock(hdev);
4987
4988 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
bea710fe
VCG		 4989 if (conn == NULL)
4990 goto not_found;
a7a595f6 4991
f3a73d97 4992 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5378bc56 4993 if (!ltk)
bea710fe
VCG		 4994 goto not_found;
4995
5378bc56
JH		 4996 if (smp_ltk_is_sc(ltk)) {
4997 /* With SC both EDiv and Rand are set to zero */
4998 if (ev->ediv || ev->rand)
4999 goto not_found;
5000 } else {
5001 /* For non-SC keys check that EDiv and Rand match */
5002 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
5003 goto not_found;
5004 }
5005
8b76ce34
JH		 5006 memcpy(cp.ltk, ltk->val, ltk->enc_size);
5007 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
a7a595f6 5008 cp.handle = cpu_to_le16(conn->handle);
c9839a11 5009
a6f7833c 5010 conn->pending_sec_level = smp_ltk_sec_level(ltk);
a7a595f6 5011
89cbb4da 5012 conn->enc_key_size = ltk->enc_size;
a7a595f6
VCG		 5013
5014 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
5015
5981a882
CT		 5016 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
5017 * temporary key used to encrypt a connection following
5018 * pairing. It is used during the Encrypted Session Setup to
5019 * distribute the keys. Later, security can be re-established
5020 * using a distributed LTK.
5021 */
2ceba539 5022 if (ltk->type == SMP_STK) {
fe59a05f 5023 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
970d0f1b
JH		 5024 list_del_rcu(&ltk->list);
5025 kfree_rcu(ltk, rcu);
fe59a05f
JH		 5026 } else {
5027 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
c9839a11
VCG		 5028 }
5029
a7a595f6 5030 hci_dev_unlock(hdev);
bea710fe
VCG		 5031
5032 return;
5033
5034not_found:
5035 neg.handle = ev->handle;
5036 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
5037 hci_dev_unlock(hdev);
a7a595f6
VCG		 5038}
5039
8e75b46a
AG		 5040static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
5041 u8 reason)
5042{
5043 struct hci_cp_le_conn_param_req_neg_reply cp;
5044
5045 cp.handle = cpu_to_le16(handle);
5046 cp.reason = reason;
5047
5048 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
5049 &cp);
5050}
5051
5052static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev,
5053 struct sk_buff *skb)
5054{
5055 struct hci_ev_le_remote_conn_param_req *ev = (void *) skb->data;
5056 struct hci_cp_le_conn_param_req_reply cp;
5057 struct hci_conn *hcon;
5058 u16 handle, min, max, latency, timeout;
5059
5060 handle = le16_to_cpu(ev->handle);
5061 min = le16_to_cpu(ev->interval_min);
5062 max = le16_to_cpu(ev->interval_max);
5063 latency = le16_to_cpu(ev->latency);
5064 timeout = le16_to_cpu(ev->timeout);
5065
5066 hcon = hci_conn_hash_lookup_handle(hdev, handle);
5067 if (!hcon || hcon->state != BT_CONNECTED)
5068 return send_conn_param_neg_reply(hdev, handle,
5069 HCI_ERROR_UNKNOWN_CONN_ID);
5070
5071 if (hci_check_conn_params(min, max, latency, timeout))
5072 return send_conn_param_neg_reply(hdev, handle,
5073 HCI_ERROR_INVALID_LL_PARAMS);
5074
40bef302 5075 if (hcon->role == HCI_ROLE_MASTER) {
348d50b8 5076 struct hci_conn_params *params;
f4869e2a 5077 u8 store_hint;
348d50b8
JH		 5078
5079 hci_dev_lock(hdev);
5080
5081 params = hci_conn_params_lookup(hdev, &hcon->dst,
5082 hcon->dst_type);
5083 if (params) {
5084 params->conn_min_interval = min;
5085 params->conn_max_interval = max;
5086 params->conn_latency = latency;
5087 params->supervision_timeout = timeout;
f4869e2a
JH		 5088 store_hint = 0x01;
5089 } else{
5090 store_hint = 0x00;
348d50b8
JH		 5091 }
5092
5093 hci_dev_unlock(hdev);
5094
f4869e2a
JH		 5095 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
5096 store_hint, min, max, latency, timeout);
348d50b8 5097 }
ffb5a827 5098
8e75b46a
AG		 5099 cp.handle = ev->handle;
5100 cp.interval_min = ev->interval_min;
5101 cp.interval_max = ev->interval_max;
5102 cp.latency = ev->latency;
5103 cp.timeout = ev->timeout;
5104 cp.min_ce_len = 0;
5105 cp.max_ce_len = 0;
5106
5107 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
5108}
5109
2f010b55
MH		 5110static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
5111 struct sk_buff *skb)
5112{
5113 u8 num_reports = skb->data[0];
5114 void *ptr = &skb->data[1];
5115
5116 hci_dev_lock(hdev);
5117
5118 while (num_reports--) {
5119 struct hci_ev_le_direct_adv_info *ev = ptr;
5120
5121 process_adv_report(hdev, ev->evt_type, &ev->bdaddr,
5122 ev->bdaddr_type, &ev->direct_addr,
5123 ev->direct_addr_type, ev->rssi, NULL, 0);
5124
5125 ptr += sizeof(*ev);
5126 }
5127
5128 hci_dev_unlock(hdev);
5129}
5130
6039aa73 5131static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
fcd89c09
VT		 5132{
5133 struct hci_ev_le_meta *le_ev = (void *) skb->data;
5134
5135 skb_pull(skb, sizeof(*le_ev));
5136
5137 switch (le_ev->subevent) {
5138 case HCI_EV_LE_CONN_COMPLETE:
5139 hci_le_conn_complete_evt(hdev, skb);
5140 break;
5141
1855d92d
MH		 5142 case HCI_EV_LE_CONN_UPDATE_COMPLETE:
5143 hci_le_conn_update_complete_evt(hdev, skb);
5144 break;
5145
9aa04c91
AG		 5146 case HCI_EV_LE_ADVERTISING_REPORT:
5147 hci_le_adv_report_evt(hdev, skb);
5148 break;
5149
0fe29fd1
MH		 5150 case HCI_EV_LE_REMOTE_FEAT_COMPLETE:
5151 hci_le_remote_feat_complete_evt(hdev, skb);
5152 break;
5153
a7a595f6
VCG		 5154 case HCI_EV_LE_LTK_REQ:
5155 hci_le_ltk_request_evt(hdev, skb);
5156 break;
5157
8e75b46a
AG		 5158 case HCI_EV_LE_REMOTE_CONN_PARAM_REQ:
5159 hci_le_remote_conn_param_req_evt(hdev, skb);
5160 break;
5161
2f010b55
MH		 5162 case HCI_EV_LE_DIRECT_ADV_REPORT:
5163 hci_le_direct_adv_report_evt(hdev, skb);
5164 break;
5165
fcd89c09
VT		 5166 default:
5167 break;
5168 }
5169}
5170
757aa0b5
JH		 5171static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
5172 u8 event, struct sk_buff *skb)
5173{
5174 struct hci_ev_cmd_complete *ev;
5175 struct hci_event_hdr *hdr;
5176
5177 if (!skb)
5178 return false;
5179
5180 if (skb->len < sizeof(*hdr)) {
5181 BT_ERR("Too short HCI event");
5182 return false;
5183 }
5184
5185 hdr = (void *) skb->data;
5186 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5187
5188 if (event) {
5189 if (hdr->evt != event)
5190 return false;
5191 return true;
5192 }
5193
5194 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
5195 BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt);
5196 return false;
5197 }
5198
5199 if (skb->len < sizeof(*ev)) {
5200 BT_ERR("Too short cmd_complete event");
5201 return false;
5202 }
5203
5204 ev = (void *) skb->data;
5205 skb_pull(skb, sizeof(*ev));
5206
5207 if (opcode != __le16_to_cpu(ev->opcode)) {
5208 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
5209 __le16_to_cpu(ev->opcode));
5210 return false;
5211 }
5212
5213 return true;
5214}
5215
a9de9248
MH		 5216void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
5217{
5218 struct hci_event_hdr *hdr = (void *) skb->data;
e6214487
JH		 5219 hci_req_complete_t req_complete = NULL;
5220 hci_req_complete_skb_t req_complete_skb = NULL;
5221 struct sk_buff *orig_skb = NULL;
757aa0b5 5222 u8 status = 0, event = hdr->evt, req_evt = 0;
e6214487 5223 u16 opcode = HCI_OP_NOP;
a9de9248 5224
242c0ebd 5225 if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->hci.req_event == event) {
c1f23a2b 5226 struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
e6214487
JH		 5227 opcode = __le16_to_cpu(cmd_hdr->opcode);
5228 hci_req_cmd_complete(hdev, opcode, status, &req_complete,
5229 &req_complete_skb);
757aa0b5 5230 req_evt = event;
02350a72
JH		 5231 }
5232
e6214487
JH		 5233 /* If it looks like we might end up having to call
5234 * req_complete_skb, store a pristine copy of the skb since the
5235 * various handlers may modify the original one through
5236 * skb_pull() calls, etc.
5237 */
5238 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
5239 event == HCI_EV_CMD_COMPLETE)
5240 orig_skb = skb_clone(skb, GFP_KERNEL);
5241
5242 skb_pull(skb, HCI_EVENT_HDR_SIZE);
5243
a9de9248 5244 switch (event) {
1da177e4
LT		 5245 case HCI_EV_INQUIRY_COMPLETE:
5246 hci_inquiry_complete_evt(hdev, skb);
5247 break;
5248
5249 case HCI_EV_INQUIRY_RESULT:
5250 hci_inquiry_result_evt(hdev, skb);
5251 break;
5252
a9de9248
MH		 5253 case HCI_EV_CONN_COMPLETE:
5254 hci_conn_complete_evt(hdev, skb);
21d9e30e
MH		 5255 break;
5256
1da177e4
LT		 5257 case HCI_EV_CONN_REQUEST:
5258 hci_conn_request_evt(hdev, skb);
5259 break;
5260
1da177e4
LT		 5261 case HCI_EV_DISCONN_COMPLETE:
5262 hci_disconn_complete_evt(hdev, skb);
5263 break;
5264
1da177e4
LT		 5265 case HCI_EV_AUTH_COMPLETE:
5266 hci_auth_complete_evt(hdev, skb);
5267 break;
5268
a9de9248
MH		 5269 case HCI_EV_REMOTE_NAME:
5270 hci_remote_name_evt(hdev, skb);
5271 break;
5272
1da177e4
LT		 5273 case HCI_EV_ENCRYPT_CHANGE:
5274 hci_encrypt_change_evt(hdev, skb);
5275 break;
5276
a9de9248
MH		 5277 case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
5278 hci_change_link_key_complete_evt(hdev, skb);
5279 break;
5280
5281 case HCI_EV_REMOTE_FEATURES:
5282 hci_remote_features_evt(hdev, skb);
5283 break;
5284
a9de9248 5285 case HCI_EV_CMD_COMPLETE:
e6214487
JH		 5286 hci_cmd_complete_evt(hdev, skb, &opcode, &status,
5287 &req_complete, &req_complete_skb);
a9de9248
MH		 5288 break;
5289
5290 case HCI_EV_CMD_STATUS:
e6214487
JH		 5291 hci_cmd_status_evt(hdev, skb, &opcode, &status, &req_complete,
5292 &req_complete_skb);
a9de9248
MH		 5293 break;
5294
24dfa343
MH		 5295 case HCI_EV_HARDWARE_ERROR:
5296 hci_hardware_error_evt(hdev, skb);
5297 break;
5298
a9de9248
MH		 5299 case HCI_EV_ROLE_CHANGE:
5300 hci_role_change_evt(hdev, skb);
5301 break;
5302
5303 case HCI_EV_NUM_COMP_PKTS:
5304 hci_num_comp_pkts_evt(hdev, skb);
5305 break;
5306
5307 case HCI_EV_MODE_CHANGE:
5308 hci_mode_change_evt(hdev, skb);
1da177e4
LT		 5309 break;
5310
5311 case HCI_EV_PIN_CODE_REQ:
5312 hci_pin_code_request_evt(hdev, skb);
5313 break;
5314
5315 case HCI_EV_LINK_KEY_REQ:
5316 hci_link_key_request_evt(hdev, skb);
5317 break;
5318
5319 case HCI_EV_LINK_KEY_NOTIFY:
5320 hci_link_key_notify_evt(hdev, skb);
5321 break;
5322
5323 case HCI_EV_CLOCK_OFFSET:
5324 hci_clock_offset_evt(hdev, skb);
5325 break;
5326
a8746417
MH		 5327 case HCI_EV_PKT_TYPE_CHANGE:
5328 hci_pkt_type_change_evt(hdev, skb);
5329 break;
5330
85a1e930
MH		 5331 case HCI_EV_PSCAN_REP_MODE:
5332 hci_pscan_rep_mode_evt(hdev, skb);
5333 break;
5334
a9de9248
MH		 5335 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
5336 hci_inquiry_result_with_rssi_evt(hdev, skb);
04837f64
MH		 5337 break;
5338
a9de9248
MH		 5339 case HCI_EV_REMOTE_EXT_FEATURES:
5340 hci_remote_ext_features_evt(hdev, skb);
1da177e4
LT		 5341 break;
5342
a9de9248
MH		 5343 case HCI_EV_SYNC_CONN_COMPLETE:
5344 hci_sync_conn_complete_evt(hdev, skb);
5345 break;
1da177e4 5346
a9de9248
MH		 5347 case HCI_EV_EXTENDED_INQUIRY_RESULT:
5348 hci_extended_inquiry_result_evt(hdev, skb);
5349 break;
1da177e4 5350
1c2e0041
JH		 5351 case HCI_EV_KEY_REFRESH_COMPLETE:
5352 hci_key_refresh_complete_evt(hdev, skb);
5353 break;
5354
0493684e
MH		 5355 case HCI_EV_IO_CAPA_REQUEST:
5356 hci_io_capa_request_evt(hdev, skb);
5357 break;
5358
03b555e1
JH		 5359 case HCI_EV_IO_CAPA_REPLY:
5360 hci_io_capa_reply_evt(hdev, skb);
5361 break;
5362
a5c29683
JH		 5363 case HCI_EV_USER_CONFIRM_REQUEST:
5364 hci_user_confirm_request_evt(hdev, skb);
5365 break;
5366
1143d458
BG		 5367 case HCI_EV_USER_PASSKEY_REQUEST:
5368 hci_user_passkey_request_evt(hdev, skb);
5369 break;
5370
92a25256
JH		 5371 case HCI_EV_USER_PASSKEY_NOTIFY:
5372 hci_user_passkey_notify_evt(hdev, skb);
5373 break;
5374
5375 case HCI_EV_KEYPRESS_NOTIFY:
5376 hci_keypress_notify_evt(hdev, skb);
5377 break;
5378
0493684e
MH		 5379 case HCI_EV_SIMPLE_PAIR_COMPLETE:
5380 hci_simple_pair_complete_evt(hdev, skb);
5381 break;
5382
41a96212
MH		 5383 case HCI_EV_REMOTE_HOST_FEATURES:
5384 hci_remote_host_features_evt(hdev, skb);
5385 break;
5386
fcd89c09
VT		 5387 case HCI_EV_LE_META:
5388 hci_le_meta_evt(hdev, skb);
5389 break;
5390
2763eda6
SJ		 5391 case HCI_EV_REMOTE_OOB_DATA_REQUEST:
5392 hci_remote_oob_data_request_evt(hdev, skb);
5393 break;
5394
a77a6a14
AW		 5395#if IS_ENABLED(CONFIG_BT_HS)
5396 case HCI_EV_CHANNEL_SELECTED:
5397 hci_chan_selected_evt(hdev, skb);
5398 break;
5399
d5e91192
AE		 5400 case HCI_EV_PHY_LINK_COMPLETE:
5401 hci_phy_link_complete_evt(hdev, skb);
5402 break;
5403
27695fb4
AE		 5404 case HCI_EV_LOGICAL_LINK_COMPLETE:
5405 hci_loglink_complete_evt(hdev, skb);
5406 break;
5407
606e2a10
AE		 5408 case HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE:
5409 hci_disconn_loglink_complete_evt(hdev, skb);
5410 break;
5411
9eef6b3a
AE		 5412 case HCI_EV_DISCONN_PHY_LINK_COMPLETE:
5413 hci_disconn_phylink_complete_evt(hdev, skb);
5414 break;
a77a6a14 5415#endif
9eef6b3a 5416
25e89e99
AE		 5417 case HCI_EV_NUM_COMP_BLOCKS:
5418 hci_num_comp_blocks_evt(hdev, skb);
5419 break;
5420
a9de9248 5421 default:
9f1db00c 5422 BT_DBG("%s event 0x%2.2x", hdev->name, event);
1da177e4
LT		 5423 break;
5424 }
5425
757aa0b5 5426 if (req_complete) {
e6214487 5427 req_complete(hdev, status, opcode);
757aa0b5
JH		 5428 } else if (req_complete_skb) {
5429 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
5430 kfree_skb(orig_skb);
5431 orig_skb = NULL;
5432 }
e6214487 5433 req_complete_skb(hdev, status, opcode, orig_skb);
757aa0b5 5434 }
e6214487
JH		 5435
5436 kfree_skb(orig_skb);
1da177e4
LT		 5437 kfree_skb(skb);
5438 hdev->stat.evt_rx++;
5439}
Linux kernel - Deliverables
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