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[thirdparty/linux.git] / net / bluetooth / hci_event.c
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8e87d142 1/*
1da177e4 2 BlueZ - Bluetooth protocol stack for Linux
2d0a0346 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
0fe8c8d0 4 Copyright 2023 NXP
1da177e4
LT		 5
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
8e87d142
YH		 16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1da177e4
LT		 19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
8e87d142
YH		 21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4
LT		 23 SOFTWARE IS DISCLAIMED.
24*/
25
26/* Bluetooth HCI event handling. */
27
1da177e4 28#include <asm/unaligned.h>
b5412606
LAD		 29#include <linux/crypto.h>
30#include <crypto/algapi.h>
1da177e4
LT		 31
32#include <net/bluetooth/bluetooth.h>
33#include <net/bluetooth/hci_core.h>
f0d6a0ea 34#include <net/bluetooth/mgmt.h>
7ef9fbf0 35
0857dd3b 36#include "hci_request.h"
23b9ceb7 37#include "hci_debugfs.h"
b938790e 38#include "hci_codec.h"
7024728e 39#include "a2mp.h"
7ef9fbf0 40#include "amp.h"
2ceba539 41#include "smp.h"
145373cb 42#include "msft.h"
01ce70b0 43#include "eir.h"
1da177e4 44
aa5b0345
MH		 45#define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
46 "\x00\x00\x00\x00\x00\x00\x00\x00"
47
c45074d6
LAD		 48#define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000)
49
1da177e4
LT		 50/* Handle HCI Event packets */
51
ae61a10d
LAD		 52static void *hci_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
53 u8 ev, size_t len)
54{
55 void *data;
56
57 data = skb_pull_data(skb, len);
58 if (!data)
59 bt_dev_err(hdev, "Malformed Event: 0x%2.2x", ev);
60
61 return data;
62}
63
e3f3a1ae
LAD		 64static void *hci_cc_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
65 u16 op, size_t len)
66{
67 void *data;
68
69 data = skb_pull_data(skb, len);
70 if (!data)
71 bt_dev_err(hdev, "Malformed Command Complete: 0x%4.4x", op);
72
73 return data;
74}
75
12cfe417
LAD		 76static void *hci_le_ev_skb_pull(struct hci_dev *hdev, struct sk_buff *skb,
77 u8 ev, size_t len)
78{
79 void *data;
80
81 data = skb_pull_data(skb, len);
82 if (!data)
83 bt_dev_err(hdev, "Malformed LE Event: 0x%2.2x", ev);
84
85 return data;
86}
87
c8992cff
LAD		 88static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data,
89 struct sk_buff *skb)
1da177e4 90{
c8992cff 91 struct hci_ev_status *rp = data;
e3f3a1ae
LAD		 92
93 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 94
adf1d692
SS		 95 /* It is possible that we receive Inquiry Complete event right
96 * before we receive Inquiry Cancel Command Complete event, in
97 * which case the latter event should have status of Command
98 * Disallowed (0x0c). This should not be treated as error, since
99 * we actually achieve what Inquiry Cancel wants to achieve,
100 * which is to end the last Inquiry session.
101 */
e3f3a1ae 102 if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) {
adf1d692 103 bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command");
e3f3a1ae 104 rp->status = 0x00;
adf1d692
SS		 105 }
106
e3f3a1ae 107 if (rp->status)
c8992cff 108 return rp->status;
1da177e4 109
89352e7d 110 clear_bit(HCI_INQUIRY, &hdev->flags);
4e857c58 111 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3e13fa1e 112 wake_up_bit(&hdev->flags, HCI_INQUIRY);
89352e7d 113
50143a43 114 hci_dev_lock(hdev);
168b8a25
JP		 115 /* Set discovery state to stopped if we're not doing LE active
116 * scanning.
117 */
118 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
119 hdev->le_scan_type != LE_SCAN_ACTIVE)
120 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
50143a43
JH		 121 hci_dev_unlock(hdev);
122
a9de9248 123 hci_conn_check_pending(hdev);
c8992cff
LAD		 124
125 return rp->status;
a9de9248 126}
6bd57416 127
c8992cff
LAD		 128static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data,
129 struct sk_buff *skb)
4d93483b 130{
c8992cff 131 struct hci_ev_status *rp = data;
ae854a70 132
e3f3a1ae
LAD		 133 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
134
135 if (rp->status)
c8992cff 136 return rp->status;
ae854a70 137
a1536da2 138 hci_dev_set_flag(hdev, HCI_PERIODIC_INQ);
c8992cff
LAD		 139
140 return rp->status;
4d93483b
AG		 141}
142
c8992cff
LAD		 143static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data,
144 struct sk_buff *skb)
a9de9248 145{
c8992cff 146 struct hci_ev_status *rp = data;
6bd57416 147
e3f3a1ae
LAD		 148 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
149
150 if (rp->status)
c8992cff 151 return rp->status;
1da177e4 152
a358dc11 153 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);
ae854a70 154
a9de9248 155 hci_conn_check_pending(hdev);
c8992cff
LAD		 156
157 return rp->status;
a9de9248
MH		 158}
159
c8992cff
LAD		 160static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data,
161 struct sk_buff *skb)
a9de9248 162{
c8992cff 163 struct hci_ev_status *rp = data;
e3f3a1ae
LAD		 164
165 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
c8992cff
LAD		 166
167 return rp->status;
a9de9248
MH		 168}
169
c8992cff
LAD		 170static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data,
171 struct sk_buff *skb)
a9de9248 172{
c8992cff 173 struct hci_rp_role_discovery *rp = data;
a9de9248
MH		 174 struct hci_conn *conn;
175
e3f3a1ae 176 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9de9248
MH		 177
178 if (rp->status)
c8992cff 179 return rp->status;
a9de9248
MH		 180
181 hci_dev_lock(hdev);
182
183 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
40bef302
JH		 184 if (conn)
185 conn->role = rp->role;
a9de9248
MH		 186
187 hci_dev_unlock(hdev);
c8992cff
LAD		 188
189 return rp->status;
1da177e4
LT		 190}
191
c8992cff
LAD		 192static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data,
193 struct sk_buff *skb)
e4e8e37c 194{
c8992cff 195 struct hci_rp_read_link_policy *rp = data;
e4e8e37c
MH		 196 struct hci_conn *conn;
197
e3f3a1ae 198 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
e4e8e37c
MH		 199
200 if (rp->status)
c8992cff 201 return rp->status;
e4e8e37c
MH		 202
203 hci_dev_lock(hdev);
204
205 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
206 if (conn)
207 conn->link_policy = __le16_to_cpu(rp->policy);
208
209 hci_dev_unlock(hdev);
c8992cff
LAD		 210
211 return rp->status;
e4e8e37c
MH		 212}
213
c8992cff
LAD		 214static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data,
215 struct sk_buff *skb)
1da177e4 216{
c8992cff 217 struct hci_rp_write_link_policy *rp = data;
1da177e4 218 struct hci_conn *conn;
04837f64 219 void *sent;
1da177e4 220
e3f3a1ae 221 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 222
a9de9248 223 if (rp->status)
c8992cff 224 return rp->status;
1da177e4 225
a9de9248
MH		 226 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY);
227 if (!sent)
c8992cff 228 return rp->status;
1da177e4 229
a9de9248 230 hci_dev_lock(hdev);
1da177e4 231
a9de9248 232 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
e4e8e37c 233 if (conn)
83985319 234 conn->link_policy = get_unaligned_le16(sent + 2);
1da177e4 235
a9de9248 236 hci_dev_unlock(hdev);
c8992cff
LAD		 237
238 return rp->status;
a9de9248 239}
1da177e4 240
c8992cff
LAD		 241static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data,
242 struct sk_buff *skb)
e4e8e37c 243{
c8992cff 244 struct hci_rp_read_def_link_policy *rp = data;
e3f3a1ae
LAD		 245
246 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
e4e8e37c
MH		 247
248 if (rp->status)
c8992cff 249 return rp->status;
e4e8e37c
MH		 250
251 hdev->link_policy = __le16_to_cpu(rp->policy);
c8992cff
LAD		 252
253 return rp->status;
e4e8e37c
MH		 254}
255
c8992cff
LAD		 256static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data,
257 struct sk_buff *skb)
e4e8e37c 258{
c8992cff 259 struct hci_ev_status *rp = data;
e4e8e37c
MH		 260 void *sent;
261
e3f3a1ae
LAD		 262 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
263
264 if (rp->status)
c8992cff 265 return rp->status;
45296acd 266
e4e8e37c
MH		 267 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY);
268 if (!sent)
c8992cff 269 return rp->status;
e4e8e37c 270
45296acd 271 hdev->link_policy = get_unaligned_le16(sent);
c8992cff
LAD		 272
273 return rp->status;
e4e8e37c
MH		 274}
275
c8992cff 276static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
a9de9248 277{
c8992cff 278 struct hci_ev_status *rp = data;
e3f3a1ae
LAD		 279
280 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
04837f64 281
10572132
GP		 282 clear_bit(HCI_RESET, &hdev->flags);
283
e3f3a1ae 284 if (rp->status)
c8992cff 285 return rp->status;
8761f9d6 286
a297e97c 287 /* Reset all non-persistent flags */
eacb44df 288 hci_dev_clear_volatile_flags(hdev);
69775ff6 289
39c5d970
JH		 290 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
291
bbaf444a
JH		 292 hdev->inq_tx_power = HCI_TX_POWER_INVALID;
293 hdev->adv_tx_power = HCI_TX_POWER_INVALID;
3f0f524b
JH		 294
295 memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
296 hdev->adv_data_len = 0;
f8e808bd
MH		 297
298 memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
299 hdev->scan_rsp_data_len = 0;
06f5b778 300
533553f8
MH		 301 hdev->le_scan_type = LE_SCAN_PASSIVE;
302
06f5b778 303 hdev->ssp_debug_mode = 0;
a4d5504d 304
3d4f9c00 305 hci_bdaddr_list_clear(&hdev->le_accept_list);
cfdb0c2d 306 hci_bdaddr_list_clear(&hdev->le_resolv_list);
c8992cff
LAD		 307
308 return rp->status;
a9de9248 309}
04837f64 310
c8992cff
LAD		 311static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data,
312 struct sk_buff *skb)
c2f0f979 313{
c8992cff 314 struct hci_rp_read_stored_link_key *rp = data;
c2f0f979
MH		 315 struct hci_cp_read_stored_link_key *sent;
316
e3f3a1ae 317 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
c2f0f979
MH		 318
319 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY);
320 if (!sent)
c8992cff 321 return rp->status;
c2f0f979
MH		 322
323 if (!rp->status && sent->read_all == 0x01) {
e88422bc
LAD		 324 hdev->stored_max_keys = le16_to_cpu(rp->max_keys);
325 hdev->stored_num_keys = le16_to_cpu(rp->num_keys);
c2f0f979 326 }
c8992cff
LAD		 327
328 return rp->status;
c2f0f979
MH		 329}
330
c8992cff
LAD		 331static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data,
332 struct sk_buff *skb)
a9366120 333{
c8992cff 334 struct hci_rp_delete_stored_link_key *rp = data;
889f0346 335 u16 num_keys;
e3f3a1ae
LAD		 336
337 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9366120
MH		 338
339 if (rp->status)
c8992cff 340 return rp->status;
a9366120 341
889f0346
LAD		 342 num_keys = le16_to_cpu(rp->num_keys);
343
344 if (num_keys <= hdev->stored_num_keys)
345 hdev->stored_num_keys -= num_keys;
a9366120
MH		 346 else
347 hdev->stored_num_keys = 0;
c8992cff
LAD		 348
349 return rp->status;
a9366120
MH		 350}
351
c8992cff
LAD		 352static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data,
353 struct sk_buff *skb)
a9de9248 354{
c8992cff 355 struct hci_ev_status *rp = data;
a9de9248 356 void *sent;
04837f64 357
e3f3a1ae 358 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
04837f64 359
a9de9248
MH		 360 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME);
361 if (!sent)
c8992cff 362 return rp->status;
04837f64 363
56e5cb86
JH		 364 hci_dev_lock(hdev);
365
d7a5a11d 366 if (hci_dev_test_flag(hdev, HCI_MGMT))
e3f3a1ae
LAD		 367 mgmt_set_local_name_complete(hdev, sent, rp->status);
368 else if (!rp->status)
28cc7bde 369 memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH);
f51d5b24 370
56e5cb86 371 hci_dev_unlock(hdev);
c8992cff
LAD		 372
373 return rp->status;
a9de9248
MH		 374}
375
c8992cff
LAD		 376static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data,
377 struct sk_buff *skb)
a9de9248 378{
c8992cff 379 struct hci_rp_read_local_name *rp = data;
e3f3a1ae
LAD		 380
381 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9de9248
MH		 382
383 if (rp->status)
c8992cff 384 return rp->status;
a9de9248 385
d7a5a11d
MH		 386 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
387 hci_dev_test_flag(hdev, HCI_CONFIG))
db99b5fc 388 memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH);
c8992cff
LAD		 389
390 return rp->status;
a9de9248
MH		 391}
392
c8992cff
LAD		 393static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data,
394 struct sk_buff *skb)
a9de9248 395{
c8992cff 396 struct hci_ev_status *rp = data;
a9de9248
MH		 397 void *sent;
398
e3f3a1ae 399 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9de9248
MH		 400
401 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE);
402 if (!sent)
c8992cff 403 return rp->status;
a9de9248 404
5c1a4c8f
JK		 405 hci_dev_lock(hdev);
406
e3f3a1ae 407 if (!rp->status) {
a9de9248
MH		 408 __u8 param = *((__u8 *) sent);
409
410 if (param == AUTH_ENABLED)
411 set_bit(HCI_AUTH, &hdev->flags);
412 else
413 clear_bit(HCI_AUTH, &hdev->flags);
1da177e4 414 }
a9de9248 415
d7a5a11d 416 if (hci_dev_test_flag(hdev, HCI_MGMT))
e3f3a1ae 417 mgmt_auth_enable_complete(hdev, rp->status);
5c1a4c8f
JK		 418
419 hci_dev_unlock(hdev);
c8992cff
LAD		 420
421 return rp->status;
1da177e4
LT		 422}
423
c8992cff
LAD		 424static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data,
425 struct sk_buff *skb)
1da177e4 426{
c8992cff 427 struct hci_ev_status *rp = data;
45296acd 428 __u8 param;
1da177e4
LT		 429 void *sent;
430
e3f3a1ae
LAD		 431 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
432
433 if (rp->status)
c8992cff 434 return rp->status;
45296acd 435
a9de9248
MH		 436 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE);
437 if (!sent)
c8992cff 438 return rp->status;
1da177e4 439
45296acd 440 param = *((__u8 *) sent);
a9de9248 441
45296acd
MH		 442 if (param)
443 set_bit(HCI_ENCRYPT, &hdev->flags);
444 else
445 clear_bit(HCI_ENCRYPT, &hdev->flags);
c8992cff
LAD		 446
447 return rp->status;
a9de9248 448}
1da177e4 449
c8992cff
LAD		 450static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data,
451 struct sk_buff *skb)
a9de9248 452{
c8992cff 453 struct hci_ev_status *rp = data;
45296acd 454 __u8 param;
a9de9248 455 void *sent;
1da177e4 456
e3f3a1ae 457 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 458
a9de9248
MH		 459 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE);
460 if (!sent)
c8992cff 461 return rp->status;
1da177e4 462
36f7fc7e
JH		 463 param = *((__u8 *) sent);
464
56e5cb86
JH		 465 hci_dev_lock(hdev);
466
e3f3a1ae 467 if (rp->status) {
2d7cee58
JH		 468 hdev->discov_timeout = 0;
469 goto done;
470 }
471
bc6d2d04 472 if (param & SCAN_INQUIRY)
36f7fc7e 473 set_bit(HCI_ISCAN, &hdev->flags);
bc6d2d04
JH		 474 else
475 clear_bit(HCI_ISCAN, &hdev->flags);
36f7fc7e 476
031547d8 477 if (param & SCAN_PAGE)
36f7fc7e 478 set_bit(HCI_PSCAN, &hdev->flags);
bc6d2d04 479 else
204e3990 480 clear_bit(HCI_PSCAN, &hdev->flags);
1da177e4 481
36f7fc7e 482done:
56e5cb86 483 hci_dev_unlock(hdev);
c8992cff
LAD		 484
485 return rp->status;
a9de9248 486}
1da177e4 487
c8992cff
LAD		 488static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data,
489 struct sk_buff *skb)
e5b0ad69 490{
c8992cff 491 struct hci_ev_status *rp = data;
e5b0ad69
APS		 492 struct hci_cp_set_event_filter *cp;
493 void *sent;
494
e3f3a1ae
LAD		 495 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
496
497 if (rp->status)
c8992cff 498 return rp->status;
e5b0ad69
APS		 499
500 sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT);
501 if (!sent)
c8992cff 502 return rp->status;
e5b0ad69
APS		 503
504 cp = (struct hci_cp_set_event_filter *)sent;
505
506 if (cp->flt_type == HCI_FLT_CLEAR_ALL)
507 hci_dev_clear_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
508 else
509 hci_dev_set_flag(hdev, HCI_EVENT_FILTER_CONFIGURED);
c8992cff
LAD		 510
511 return rp->status;
e5b0ad69
APS		 512}
513
c8992cff
LAD		 514static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data,
515 struct sk_buff *skb)
a9de9248 516{
c8992cff 517 struct hci_rp_read_class_of_dev *rp = data;
e3f3a1ae
LAD		 518
519 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 520
a9de9248 521 if (rp->status)
c8992cff 522 return rp->status;
1da177e4 523
a9de9248 524 memcpy(hdev->dev_class, rp->dev_class, 3);
1da177e4 525
e3f3a1ae
LAD		 526 bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x", hdev->dev_class[2],
527 hdev->dev_class[1], hdev->dev_class[0]);
c8992cff
LAD		 528
529 return rp->status;
a9de9248 530}
1da177e4 531
c8992cff
LAD		 532static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data,
533 struct sk_buff *skb)
a9de9248 534{
c8992cff 535 struct hci_ev_status *rp = data;
a9de9248 536 void *sent;
1da177e4 537
e3f3a1ae 538 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 539
a9de9248
MH		 540 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV);
541 if (!sent)
c8992cff 542 return rp->status;
1da177e4 543
7f9a903c
MH		 544 hci_dev_lock(hdev);
545
e3f3a1ae 546 if (!rp->status)
7f9a903c
MH		 547 memcpy(hdev->dev_class, sent, 3);
548
d7a5a11d 549 if (hci_dev_test_flag(hdev, HCI_MGMT))
e3f3a1ae 550 mgmt_set_class_of_dev_complete(hdev, sent, rp->status);
7f9a903c
MH		 551
552 hci_dev_unlock(hdev);
c8992cff
LAD		 553
554 return rp->status;
a9de9248 555}
1da177e4 556
c8992cff
LAD		 557static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data,
558 struct sk_buff *skb)
a9de9248 559{
c8992cff 560 struct hci_rp_read_voice_setting *rp = data;
a9de9248
MH		 561 __u16 setting;
562
e3f3a1ae 563 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9de9248
MH		 564
565 if (rp->status)
c8992cff 566 return rp->status;
a9de9248
MH		 567
568 setting = __le16_to_cpu(rp->voice_setting);
569
f383f275 570 if (hdev->voice_setting == setting)
c8992cff 571 return rp->status;
a9de9248
MH		 572
573 hdev->voice_setting = setting;
574
e3f3a1ae 575 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
a9de9248 576
3c54711c 577 if (hdev->notify)
a9de9248 578 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
c8992cff
LAD		 579
580 return rp->status;
a9de9248
MH		 581}
582
c8992cff
LAD		 583static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data,
584 struct sk_buff *skb)
a9de9248 585{
c8992cff 586 struct hci_ev_status *rp = data;
f383f275 587 __u16 setting;
a9de9248
MH		 588 void *sent;
589
e3f3a1ae
LAD		 590 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
591
592 if (rp->status)
c8992cff 593 return rp->status;
f383f275 594
a9de9248
MH		 595 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING);
596 if (!sent)
c8992cff 597 return rp->status;
1da177e4 598
f383f275 599 setting = get_unaligned_le16(sent);
1da177e4 600
f383f275 601 if (hdev->voice_setting == setting)
c8992cff 602 return rp->status;
f383f275
MH		 603
604 hdev->voice_setting = setting;
1da177e4 605
e3f3a1ae 606 bt_dev_dbg(hdev, "voice setting 0x%4.4x", setting);
1da177e4 607
3c54711c 608 if (hdev->notify)
f383f275 609 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
c8992cff
LAD		 610
611 return rp->status;
1da177e4
LT		 612}
613
c8992cff
LAD		 614static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data,
615 struct sk_buff *skb)
b4cb9fb2 616{
c8992cff 617 struct hci_rp_read_num_supported_iac *rp = data;
e3f3a1ae
LAD		 618
619 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
b4cb9fb2
MH		 620
621 if (rp->status)
c8992cff 622 return rp->status;
b4cb9fb2
MH		 623
624 hdev->num_iac = rp->num_iac;
625
e3f3a1ae 626 bt_dev_dbg(hdev, "num iac %d", hdev->num_iac);
c8992cff
LAD		 627
628 return rp->status;
b4cb9fb2
MH		 629}
630
c8992cff
LAD		 631static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data,
632 struct sk_buff *skb)
333140b5 633{
c8992cff 634 struct hci_ev_status *rp = data;
5ed8eb2f 635 struct hci_cp_write_ssp_mode *sent;
333140b5 636
e3f3a1ae 637 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
333140b5 638
333140b5
MH		 639 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE);
640 if (!sent)
c8992cff 641 return rp->status;
333140b5 642
5c1a4c8f
JK		 643 hci_dev_lock(hdev);
644
e3f3a1ae 645 if (!rp->status) {
5ed8eb2f 646 if (sent->mode)
cad718ed 647 hdev->features[1][0] |= LMP_HOST_SSP;
5ed8eb2f 648 else
cad718ed 649 hdev->features[1][0] &= ~LMP_HOST_SSP;
5ed8eb2f
JH		 650 }
651
e3f3a1ae 652 if (!rp->status) {
5ed8eb2f 653 if (sent->mode)
a1536da2 654 hci_dev_set_flag(hdev, HCI_SSP_ENABLED);
c0ecddc2 655 else
a358dc11 656 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
c0ecddc2 657 }
5c1a4c8f
JK		 658
659 hci_dev_unlock(hdev);
c8992cff
LAD		 660
661 return rp->status;
333140b5
MH		 662}
663
c8992cff
LAD		 664static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data,
665 struct sk_buff *skb)
eac83dc6 666{
c8992cff 667 struct hci_ev_status *rp = data;
eac83dc6
MH		 668 struct hci_cp_write_sc_support *sent;
669
e3f3a1ae 670 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
eac83dc6
MH		 671
672 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT);
673 if (!sent)
c8992cff 674 return rp->status;
eac83dc6 675
5c1a4c8f
JK		 676 hci_dev_lock(hdev);
677
e3f3a1ae 678 if (!rp->status) {
eac83dc6
MH		 679 if (sent->support)
680 hdev->features[1][0] |= LMP_HOST_SC;
681 else
682 hdev->features[1][0] &= ~LMP_HOST_SC;
683 }
684
e3f3a1ae 685 if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) {
eac83dc6 686 if (sent->support)
a1536da2 687 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
eac83dc6 688 else
a358dc11 689 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
eac83dc6 690 }
5c1a4c8f
JK		 691
692 hci_dev_unlock(hdev);
c8992cff
LAD		 693
694 return rp->status;
eac83dc6
MH		 695}
696
c8992cff
LAD		 697static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data,
698 struct sk_buff *skb)
a9de9248 699{
c8992cff 700 struct hci_rp_read_local_version *rp = data;
e3f3a1ae
LAD		 701
702 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1143e5a6 703
a9de9248 704 if (rp->status)
c8992cff 705 return rp->status;
1143e5a6 706
d7a5a11d
MH		 707 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
708 hci_dev_test_flag(hdev, HCI_CONFIG)) {
0d5551f5
MH		 709 hdev->hci_ver = rp->hci_ver;
710 hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
711 hdev->lmp_ver = rp->lmp_ver;
712 hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
713 hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
714 }
c8992cff
LAD		 715
716 return rp->status;
d5859e22
JH		 717}
718
278d933e
BG		 719static u8 hci_cc_read_enc_key_size(struct hci_dev *hdev, void *data,
720 struct sk_buff *skb)
721{
722 struct hci_rp_read_enc_key_size *rp = data;
723 struct hci_conn *conn;
724 u16 handle;
725 u8 status = rp->status;
726
727 bt_dev_dbg(hdev, "status 0x%2.2x", status);
728
729 handle = le16_to_cpu(rp->handle);
730
731 hci_dev_lock(hdev);
732
733 conn = hci_conn_hash_lookup_handle(hdev, handle);
734 if (!conn) {
735 status = 0xFF;
736 goto done;
737 }
738
739 /* While unexpected, the read_enc_key_size command may fail. The most
740 * secure approach is to then assume the key size is 0 to force a
741 * disconnection.
742 */
743 if (status) {
744 bt_dev_err(hdev, "failed to read key size for handle %u",
745 handle);
746 conn->enc_key_size = 0;
747 } else {
748 conn->enc_key_size = rp->key_size;
749 status = 0;
750 }
751
752 hci_encrypt_cfm(conn, 0);
753
754done:
755 hci_dev_unlock(hdev);
756
757 return status;
758}
759
c8992cff
LAD		 760static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data,
761 struct sk_buff *skb)
a9de9248 762{
c8992cff 763 struct hci_rp_read_local_commands *rp = data;
e3f3a1ae
LAD		 764
765 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 766
6a070e6e 767 if (rp->status)
c8992cff 768 return rp->status;
6a070e6e 769
d7a5a11d
MH		 770 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
771 hci_dev_test_flag(hdev, HCI_CONFIG))
2177bab5 772 memcpy(hdev->commands, rp->commands, sizeof(hdev->commands));
c8992cff
LAD		 773
774 return rp->status;
a9de9248 775}
1da177e4 776
c8992cff
LAD		 777static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data,
778 struct sk_buff *skb)
302975cb 779{
c8992cff 780 struct hci_rp_read_auth_payload_to *rp = data;
302975cb
SRK		 781 struct hci_conn *conn;
782
e3f3a1ae 783 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
302975cb
SRK		 784
785 if (rp->status)
c8992cff 786 return rp->status;
302975cb
SRK		 787
788 hci_dev_lock(hdev);
789
790 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
791 if (conn)
792 conn->auth_payload_timeout = __le16_to_cpu(rp->timeout);
793
794 hci_dev_unlock(hdev);
c8992cff
LAD		 795
796 return rp->status;
302975cb
SRK		 797}
798
c8992cff
LAD		 799static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data,
800 struct sk_buff *skb)
302975cb 801{
c8992cff 802 struct hci_rp_write_auth_payload_to *rp = data;
302975cb
SRK		 803 struct hci_conn *conn;
804 void *sent;
805
e3f3a1ae 806 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
302975cb 807
302975cb
SRK		 808 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO);
809 if (!sent)
c8992cff 810 return rp->status;
302975cb
SRK		 811
812 hci_dev_lock(hdev);
813
814 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
7aca0ac4
LAD		 815 if (!conn) {
816 rp->status = 0xff;
817 goto unlock;
818 }
819
820 if (!rp->status)
302975cb
SRK		 821 conn->auth_payload_timeout = get_unaligned_le16(sent + 2);
822
7aca0ac4
LAD		 823 hci_encrypt_cfm(conn, 0);
824
825unlock:
302975cb 826 hci_dev_unlock(hdev);
c8992cff
LAD		 827
828 return rp->status;
302975cb
SRK		 829}
830
c8992cff
LAD		 831static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data,
832 struct sk_buff *skb)
a9de9248 833{
c8992cff 834 struct hci_rp_read_local_features *rp = data;
e3f3a1ae
LAD		 835
836 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 837
a9de9248 838 if (rp->status)
c8992cff 839 return rp->status;
5b7f9909 840
a9de9248 841 memcpy(hdev->features, rp->features, 8);
5b7f9909 842
a9de9248
MH		 843 /* Adjust default settings according to features
844 * supported by device. */
1da177e4 845
cad718ed 846 if (hdev->features[0][0] & LMP_3SLOT)
a9de9248 847 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
1da177e4 848
cad718ed 849 if (hdev->features[0][0] & LMP_5SLOT)
a9de9248 850 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
1da177e4 851
cad718ed 852 if (hdev->features[0][1] & LMP_HV2) {
a9de9248
MH		 853 hdev->pkt_type |= (HCI_HV2);
854 hdev->esco_type |= (ESCO_HV2);
855 }
1da177e4 856
cad718ed 857 if (hdev->features[0][1] & LMP_HV3) {
a9de9248
MH		 858 hdev->pkt_type |= (HCI_HV3);
859 hdev->esco_type |= (ESCO_HV3);
860 }
1da177e4 861
45db810f 862 if (lmp_esco_capable(hdev))
a9de9248 863 hdev->esco_type |= (ESCO_EV3);
da1f5198 864
cad718ed 865 if (hdev->features[0][4] & LMP_EV4)
a9de9248 866 hdev->esco_type |= (ESCO_EV4);
da1f5198 867
cad718ed 868 if (hdev->features[0][4] & LMP_EV5)
a9de9248 869 hdev->esco_type |= (ESCO_EV5);
1da177e4 870
cad718ed 871 if (hdev->features[0][5] & LMP_EDR_ESCO_2M)
efc7688b
MH		 872 hdev->esco_type |= (ESCO_2EV3);
873
cad718ed 874 if (hdev->features[0][5] & LMP_EDR_ESCO_3M)
efc7688b
MH		 875 hdev->esco_type |= (ESCO_3EV3);
876
cad718ed 877 if (hdev->features[0][5] & LMP_EDR_3S_ESCO)
efc7688b 878 hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5);
c8992cff
LAD		 879
880 return rp->status;
a9de9248 881}
1da177e4 882
c8992cff
LAD		 883static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
884 struct sk_buff *skb)
971e3a4b 885{
c8992cff 886 struct hci_rp_read_local_ext_features *rp = data;
e3f3a1ae
LAD		 887
888 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
971e3a4b
AG		 889
890 if (rp->status)
c8992cff 891 return rp->status;
971e3a4b 892
8194f1ef
VK		 893 if (hdev->max_page < rp->max_page) {
894 if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2,
895 &hdev->quirks))
896 bt_dev_warn(hdev, "broken local ext features page 2");
897 else
898 hdev->max_page = rp->max_page;
899 }
d2c5d77f 900
cad718ed
JH		 901 if (rp->page < HCI_MAX_PAGES)
902 memcpy(hdev->features[rp->page], rp->features, 8);
c8992cff
LAD		 903
904 return rp->status;
971e3a4b
AG		 905}
906
c8992cff
LAD		 907static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data,
908 struct sk_buff *skb)
1e89cffb 909{
c8992cff 910 struct hci_rp_read_flow_control_mode *rp = data;
e3f3a1ae
LAD		 911
912 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1e89cffb 913
45296acd 914 if (rp->status)
c8992cff 915 return rp->status;
45296acd
MH		 916
917 hdev->flow_ctl_mode = rp->mode;
c8992cff
LAD		 918
919 return rp->status;
1e89cffb
AE		 920}
921
c8992cff
LAD		 922static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data,
923 struct sk_buff *skb)
a9de9248 924{
c8992cff 925 struct hci_rp_read_buffer_size *rp = data;
e3f3a1ae
LAD		 926
927 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1da177e4 928
a9de9248 929 if (rp->status)
c8992cff 930 return rp->status;
1da177e4 931
a9de9248
MH		 932 hdev->acl_mtu = __le16_to_cpu(rp->acl_mtu);
933 hdev->sco_mtu = rp->sco_mtu;
934 hdev->acl_pkts = __le16_to_cpu(rp->acl_max_pkt);
935 hdev->sco_pkts = __le16_to_cpu(rp->sco_max_pkt);
936
937 if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
938 hdev->sco_mtu = 64;
939 hdev->sco_pkts = 8;
1da177e4 940 }
a9de9248
MH		 941
942 hdev->acl_cnt = hdev->acl_pkts;
943 hdev->sco_cnt = hdev->sco_pkts;
944
807deac2
GP		 945 BT_DBG("%s acl mtu %d:%d sco mtu %d:%d", hdev->name, hdev->acl_mtu,
946 hdev->acl_pkts, hdev->sco_mtu, hdev->sco_pkts);
c8992cff
LAD		 947
948 return rp->status;
a9de9248
MH		 949}
950
c8992cff
LAD		 951static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data,
952 struct sk_buff *skb)
a9de9248 953{
c8992cff 954 struct hci_rp_read_bd_addr *rp = data;
e3f3a1ae
LAD		 955
956 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a9de9248 957
e30d3f5f 958 if (rp->status)
c8992cff 959 return rp->status;
e30d3f5f
MH		 960
961 if (test_bit(HCI_INIT, &hdev->flags))
a9de9248 962 bacpy(&hdev->bdaddr, &rp->bdaddr);
e30d3f5f 963
d7a5a11d 964 if (hci_dev_test_flag(hdev, HCI_SETUP))
e30d3f5f 965 bacpy(&hdev->setup_addr, &rp->bdaddr);
c8992cff
LAD		 966
967 return rp->status;
23bb5763
JH		 968}
969
c8992cff
LAD		 970static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data,
971 struct sk_buff *skb)
a4790360 972{
c8992cff 973 struct hci_rp_read_local_pairing_opts *rp = data;
e3f3a1ae
LAD		 974
975 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a4790360
MH		 976
977 if (rp->status)
c8992cff 978 return rp->status;
a4790360
MH		 979
980 if (hci_dev_test_flag(hdev, HCI_SETUP) ||
981 hci_dev_test_flag(hdev, HCI_CONFIG)) {
982 hdev->pairing_opts = rp->pairing_opts;
983 hdev->max_enc_key_size = rp->max_key_size;
984 }
c8992cff
LAD		 985
986 return rp->status;
a4790360
MH		 987}
988
c8992cff
LAD		 989static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data,
990 struct sk_buff *skb)
f332ec66 991{
c8992cff 992 struct hci_rp_read_page_scan_activity *rp = data;
e3f3a1ae
LAD		 993
994 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
f332ec66 995
45296acd 996 if (rp->status)
c8992cff 997 return rp->status;
45296acd
MH		 998
999 if (test_bit(HCI_INIT, &hdev->flags)) {
f332ec66
JH		 1000 hdev->page_scan_interval = __le16_to_cpu(rp->interval);
1001 hdev->page_scan_window = __le16_to_cpu(rp->window);
1002 }
c8992cff
LAD		 1003
1004 return rp->status;
f332ec66
JH		 1005}
1006
c8992cff
LAD		 1007static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data,
1008 struct sk_buff *skb)
4a3ee763 1009{
c8992cff 1010 struct hci_ev_status *rp = data;
4a3ee763
JH		 1011 struct hci_cp_write_page_scan_activity *sent;
1012
e3f3a1ae
LAD		 1013 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1014
1015 if (rp->status)
c8992cff 1016 return rp->status;
4a3ee763
JH		 1017
1018 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY);
1019 if (!sent)
c8992cff 1020 return rp->status;
4a3ee763
JH		 1021
1022 hdev->page_scan_interval = __le16_to_cpu(sent->interval);
1023 hdev->page_scan_window = __le16_to_cpu(sent->window);
c8992cff
LAD		 1024
1025 return rp->status;
4a3ee763
JH		 1026}
1027
c8992cff
LAD		 1028static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data,
1029 struct sk_buff *skb)
f332ec66 1030{
c8992cff 1031 struct hci_rp_read_page_scan_type *rp = data;
e3f3a1ae
LAD		 1032
1033 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
f332ec66 1034
45296acd 1035 if (rp->status)
c8992cff 1036 return rp->status;
45296acd
MH		 1037
1038 if (test_bit(HCI_INIT, &hdev->flags))
f332ec66 1039 hdev->page_scan_type = rp->type;
c8992cff
LAD		 1040
1041 return rp->status;
f332ec66
JH		 1042}
1043
c8992cff
LAD		 1044static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data,
1045 struct sk_buff *skb)
4a3ee763 1046{
c8992cff 1047 struct hci_ev_status *rp = data;
4a3ee763
JH		 1048 u8 *type;
1049
e3f3a1ae
LAD		 1050 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1051
1052 if (rp->status)
c8992cff 1053 return rp->status;
4a3ee763
JH		 1054
1055 type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE);
1056 if (type)
1057 hdev->page_scan_type = *type;
c8992cff
LAD		 1058
1059 return rp->status;
4a3ee763
JH		 1060}
1061
c8992cff
LAD		 1062static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data,
1063 struct sk_buff *skb)
350ee4cf 1064{
c8992cff 1065 struct hci_rp_read_data_block_size *rp = data;
e3f3a1ae
LAD		 1066
1067 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
350ee4cf
AE		 1068
1069 if (rp->status)
c8992cff 1070 return rp->status;
350ee4cf
AE		 1071
1072 hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
1073 hdev->block_len = __le16_to_cpu(rp->block_len);
1074 hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
1075
1076 hdev->block_cnt = hdev->num_blocks;
1077
1078 BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
807deac2 1079 hdev->block_cnt, hdev->block_len);
c8992cff
LAD		 1080
1081 return rp->status;
350ee4cf
AE		 1082}
1083
c8992cff
LAD		 1084static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data,
1085 struct sk_buff *skb)
33f35721 1086{
c8992cff 1087 struct hci_rp_read_clock *rp = data;
33f35721
JH		 1088 struct hci_cp_read_clock *cp;
1089 struct hci_conn *conn;
1090
e3f3a1ae
LAD		 1091 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1092
33f35721 1093 if (rp->status)
c8992cff 1094 return rp->status;
33f35721
JH		 1095
1096 hci_dev_lock(hdev);
1097
1098 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
1099 if (!cp)
1100 goto unlock;
1101
1102 if (cp->which == 0x00) {
1103 hdev->clock = le32_to_cpu(rp->clock);
1104 goto unlock;
1105 }
1106
1107 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
1108 if (conn) {
1109 conn->clock = le32_to_cpu(rp->clock);
1110 conn->clock_accuracy = le16_to_cpu(rp->accuracy);
1111 }
1112
1113unlock:
1114 hci_dev_unlock(hdev);
c8992cff 1115 return rp->status;
33f35721
JH		 1116}
1117
c8992cff
LAD		 1118static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data,
1119 struct sk_buff *skb)
928abaa7 1120{
c8992cff 1121 struct hci_rp_read_local_amp_info *rp = data;
e3f3a1ae
LAD		 1122
1123 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
928abaa7
AE		 1124
1125 if (rp->status)
c8992cff 1126 return rp->status;
928abaa7
AE		 1127
1128 hdev->amp_status = rp->amp_status;
1129 hdev->amp_total_bw = __le32_to_cpu(rp->total_bw);
1130 hdev->amp_max_bw = __le32_to_cpu(rp->max_bw);
1131 hdev->amp_min_latency = __le32_to_cpu(rp->min_latency);
1132 hdev->amp_max_pdu = __le32_to_cpu(rp->max_pdu);
1133 hdev->amp_type = rp->amp_type;
1134 hdev->amp_pal_cap = __le16_to_cpu(rp->pal_cap);
1135 hdev->amp_assoc_size = __le16_to_cpu(rp->max_assoc_size);
1136 hdev->amp_be_flush_to = __le32_to_cpu(rp->be_flush_to);
1137 hdev->amp_max_flush_to = __le32_to_cpu(rp->max_flush_to);
c8992cff
LAD		 1138
1139 return rp->status;
928abaa7
AE		 1140}
1141
c8992cff
LAD		 1142static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data,
1143 struct sk_buff *skb)
d5859e22 1144{
c8992cff 1145 struct hci_rp_read_inq_rsp_tx_power *rp = data;
e3f3a1ae
LAD		 1146
1147 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
91c4e9b1 1148
45296acd 1149 if (rp->status)
c8992cff 1150 return rp->status;
45296acd
MH		 1151
1152 hdev->inq_tx_power = rp->tx_power;
c8992cff
LAD		 1153
1154 return rp->status;
d5859e22
JH		 1155}
1156
c8992cff
LAD		 1157static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data,
1158 struct sk_buff *skb)
00bce3fb 1159{
c8992cff 1160 struct hci_rp_read_def_err_data_reporting *rp = data;
e3f3a1ae
LAD		 1161
1162 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
00bce3fb
AM		 1163
1164 if (rp->status)
c8992cff 1165 return rp->status;
00bce3fb
AM		 1166
1167 hdev->err_data_reporting = rp->err_data_reporting;
c8992cff
LAD		 1168
1169 return rp->status;
00bce3fb
AM		 1170}
1171
c8992cff
LAD		 1172static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data,
1173 struct sk_buff *skb)
00bce3fb 1174{
c8992cff 1175 struct hci_ev_status *rp = data;
00bce3fb
AM		 1176 struct hci_cp_write_def_err_data_reporting *cp;
1177
e3f3a1ae
LAD		 1178 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1179
1180 if (rp->status)
c8992cff 1181 return rp->status;
00bce3fb
AM		 1182
1183 cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING);
1184 if (!cp)
c8992cff 1185 return rp->status;
00bce3fb
AM		 1186
1187 hdev->err_data_reporting = cp->err_data_reporting;
c8992cff
LAD		 1188
1189 return rp->status;
00bce3fb
AM		 1190}
1191
c8992cff
LAD		 1192static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data,
1193 struct sk_buff *skb)
980e1a53 1194{
c8992cff 1195 struct hci_rp_pin_code_reply *rp = data;
980e1a53
JH		 1196 struct hci_cp_pin_code_reply *cp;
1197 struct hci_conn *conn;
1198
e3f3a1ae 1199 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
980e1a53 1200
56e5cb86
JH		 1201 hci_dev_lock(hdev);
1202
d7a5a11d 1203 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 1204 mgmt_pin_code_reply_complete(hdev, &rp->bdaddr, rp->status);
980e1a53 1205
fa1bd918 1206 if (rp->status)
56e5cb86 1207 goto unlock;
980e1a53
JH		 1208
1209 cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY);
1210 if (!cp)
56e5cb86 1211 goto unlock;
980e1a53
JH		 1212
1213 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
1214 if (conn)
1215 conn->pin_length = cp->pin_len;
56e5cb86
JH		 1216
1217unlock:
1218 hci_dev_unlock(hdev);
c8992cff 1219 return rp->status;
980e1a53
JH		 1220}
1221
c8992cff
LAD		 1222static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data,
1223 struct sk_buff *skb)
980e1a53 1224{
c8992cff 1225 struct hci_rp_pin_code_neg_reply *rp = data;
e3f3a1ae
LAD		 1226
1227 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
980e1a53 1228
56e5cb86
JH		 1229 hci_dev_lock(hdev);
1230
d7a5a11d 1231 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 1232 mgmt_pin_code_neg_reply_complete(hdev, &rp->bdaddr,
807deac2 1233 rp->status);
56e5cb86
JH		 1234
1235 hci_dev_unlock(hdev);
c8992cff
LAD		 1236
1237 return rp->status;
980e1a53 1238}
56e5cb86 1239
c8992cff
LAD		 1240static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data,
1241 struct sk_buff *skb)
6ed58ec5 1242{
c8992cff 1243 struct hci_rp_le_read_buffer_size *rp = data;
e3f3a1ae
LAD		 1244
1245 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
6ed58ec5
VT		 1246
1247 if (rp->status)
c8992cff 1248 return rp->status;
6ed58ec5
VT		 1249
1250 hdev->le_mtu = __le16_to_cpu(rp->le_mtu);
1251 hdev->le_pkts = rp->le_max_pkt;
1252
1253 hdev->le_cnt = hdev->le_pkts;
1254
1255 BT_DBG("%s le mtu %d:%d", hdev->name, hdev->le_mtu, hdev->le_pkts);
c8992cff
LAD		 1256
1257 return rp->status;
6ed58ec5 1258}
980e1a53 1259
c8992cff
LAD		 1260static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data,
1261 struct sk_buff *skb)
60e77321 1262{
c8992cff 1263 struct hci_rp_le_read_local_features *rp = data;
60e77321
JH		 1264
1265 BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
1266
45296acd 1267 if (rp->status)
c8992cff 1268 return rp->status;
45296acd
MH		 1269
1270 memcpy(hdev->le_features, rp->features, 8);
c8992cff
LAD		 1271
1272 return rp->status;
60e77321
JH		 1273}
1274
c8992cff
LAD		 1275static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data,
1276 struct sk_buff *skb)
8fa19098 1277{
c8992cff 1278 struct hci_rp_le_read_adv_tx_power *rp = data;
e3f3a1ae
LAD		 1279
1280 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
8fa19098 1281
45296acd 1282 if (rp->status)
c8992cff 1283 return rp->status;
45296acd
MH		 1284
1285 hdev->adv_tx_power = rp->tx_power;
c8992cff
LAD		 1286
1287 return rp->status;
8fa19098
JH		 1288}
1289
c8992cff
LAD		 1290static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data,
1291 struct sk_buff *skb)
a5c29683 1292{
c8992cff 1293 struct hci_rp_user_confirm_reply *rp = data;
e3f3a1ae
LAD		 1294
1295 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a5c29683 1296
56e5cb86
JH		 1297 hci_dev_lock(hdev);
1298
d7a5a11d 1299 if (hci_dev_test_flag(hdev, HCI_MGMT))
04124681
GP		 1300 mgmt_user_confirm_reply_complete(hdev, &rp->bdaddr, ACL_LINK, 0,
1301 rp->status);
56e5cb86
JH		 1302
1303 hci_dev_unlock(hdev);
c8992cff
LAD		 1304
1305 return rp->status;
a5c29683
JH		 1306}
1307
c8992cff
LAD		 1308static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data,
1309 struct sk_buff *skb)
a5c29683 1310{
c8992cff 1311 struct hci_rp_user_confirm_reply *rp = data;
e3f3a1ae
LAD		 1312
1313 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a5c29683 1314
56e5cb86
JH		 1315 hci_dev_lock(hdev);
1316
d7a5a11d 1317 if (hci_dev_test_flag(hdev, HCI_MGMT))
744cf19e 1318 mgmt_user_confirm_neg_reply_complete(hdev, &rp->bdaddr,
04124681 1319 ACL_LINK, 0, rp->status);
56e5cb86
JH		 1320
1321 hci_dev_unlock(hdev);
c8992cff
LAD		 1322
1323 return rp->status;
a5c29683
JH		 1324}
1325
c8992cff
LAD		 1326static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data,
1327 struct sk_buff *skb)
1143d458 1328{
c8992cff 1329 struct hci_rp_user_confirm_reply *rp = data;
e3f3a1ae
LAD		 1330
1331 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1143d458
BG		 1332
1333 hci_dev_lock(hdev);
1334
d7a5a11d 1335 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 1336 mgmt_user_passkey_reply_complete(hdev, &rp->bdaddr, ACL_LINK,
04124681 1337 0, rp->status);
1143d458
BG		 1338
1339 hci_dev_unlock(hdev);
c8992cff
LAD		 1340
1341 return rp->status;
1143d458
BG		 1342}
1343
c8992cff
LAD		 1344static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data,
1345 struct sk_buff *skb)
1143d458 1346{
c8992cff 1347 struct hci_rp_user_confirm_reply *rp = data;
e3f3a1ae
LAD		 1348
1349 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1143d458
BG		 1350
1351 hci_dev_lock(hdev);
1352
d7a5a11d 1353 if (hci_dev_test_flag(hdev, HCI_MGMT))
1143d458 1354 mgmt_user_passkey_neg_reply_complete(hdev, &rp->bdaddr,
04124681 1355 ACL_LINK, 0, rp->status);
1143d458
BG		 1356
1357 hci_dev_unlock(hdev);
c8992cff
LAD		 1358
1359 return rp->status;
1143d458
BG		 1360}
1361
c8992cff
LAD		 1362static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data,
1363 struct sk_buff *skb)
c35938b2 1364{
c8992cff 1365 struct hci_rp_read_local_oob_data *rp = data;
e3f3a1ae
LAD		 1366
1367 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
c8992cff
LAD		 1368
1369 return rp->status;
4d2d2796
MH		 1370}
1371
c8992cff
LAD		 1372static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data,
1373 struct sk_buff *skb)
4d2d2796 1374{
c8992cff 1375 struct hci_rp_read_local_oob_ext_data *rp = data;
e3f3a1ae
LAD		 1376
1377 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
c8992cff
LAD		 1378
1379 return rp->status;
c35938b2
SJ		 1380}
1381
c8992cff
LAD		 1382static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data,
1383 struct sk_buff *skb)
7a4cd51d 1384{
c8992cff 1385 struct hci_ev_status *rp = data;
7a4cd51d
MH		 1386 bdaddr_t *sent;
1387
e3f3a1ae
LAD		 1388 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1389
1390 if (rp->status)
c8992cff 1391 return rp->status;
45296acd 1392
7a4cd51d
MH		 1393 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
1394 if (!sent)
c8992cff 1395 return rp->status;
7a4cd51d
MH		 1396
1397 hci_dev_lock(hdev);
1398
45296acd 1399 bacpy(&hdev->random_addr, sent);
7a4cd51d 1400
c45074d6
LAD		 1401 if (!bacmp(&hdev->rpa, sent)) {
1402 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
1403 queue_delayed_work(hdev->workqueue, &hdev->rpa_expired,
1404 secs_to_jiffies(hdev->rpa_timeout));
1405 }
1406
7a4cd51d 1407 hci_dev_unlock(hdev);
c8992cff
LAD		 1408
1409 return rp->status;
7a4cd51d
MH		 1410}
1411
c8992cff
LAD		 1412static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data,
1413 struct sk_buff *skb)
0314f286 1414{
c8992cff 1415 struct hci_ev_status *rp = data;
0314f286
JK		 1416 struct hci_cp_le_set_default_phy *cp;
1417
e3f3a1ae
LAD		 1418 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1419
1420 if (rp->status)
c8992cff 1421 return rp->status;
0314f286
JK		 1422
1423 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY);
1424 if (!cp)
c8992cff 1425 return rp->status;
0314f286
JK		 1426
1427 hci_dev_lock(hdev);
1428
1429 hdev->le_tx_def_phys = cp->tx_phys;
1430 hdev->le_rx_def_phys = cp->rx_phys;
1431
1432 hci_dev_unlock(hdev);
c8992cff
LAD		 1433
1434 return rp->status;
0314f286
JK		 1435}
1436
c8992cff
LAD		 1437static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data,
1438 struct sk_buff *skb)
a73c046a 1439{
c8992cff 1440 struct hci_ev_status *rp = data;
a73c046a 1441 struct hci_cp_le_set_adv_set_rand_addr *cp;
c45074d6 1442 struct adv_info *adv;
a73c046a 1443
e3f3a1ae
LAD		 1444 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1445
1446 if (rp->status)
c8992cff 1447 return rp->status;
a73c046a
JK		 1448
1449 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR);
c45074d6
LAD		 1450 /* Update only in case the adv instance since handle 0x00 shall be using
1451 * HCI_OP_LE_SET_RANDOM_ADDR since that allows both extended and
1452 * non-extended adverting.
1453 */
1454 if (!cp || !cp->handle)
c8992cff 1455 return rp->status;
a73c046a
JK		 1456
1457 hci_dev_lock(hdev);
1458
c45074d6
LAD		 1459 adv = hci_find_adv_instance(hdev, cp->handle);
1460 if (adv) {
1461 bacpy(&adv->random_addr, &cp->bdaddr);
1462 if (!bacmp(&hdev->rpa, &cp->bdaddr)) {
1463 adv->rpa_expired = false;
1464 queue_delayed_work(hdev->workqueue,
1465 &adv->rpa_expired_cb,
1466 secs_to_jiffies(hdev->rpa_timeout));
1467 }
a73c046a
JK		 1468 }
1469
1470 hci_dev_unlock(hdev);
c8992cff
LAD		 1471
1472 return rp->status;
a73c046a
JK		 1473}
1474
c8992cff
LAD		 1475static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data,
1476 struct sk_buff *skb)
cba6b758 1477{
c8992cff 1478 struct hci_ev_status *rp = data;
cba6b758
LAD		 1479 u8 *instance;
1480 int err;
1481
e3f3a1ae
LAD		 1482 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1483
1484 if (rp->status)
c8992cff 1485 return rp->status;
cba6b758
LAD		 1486
1487 instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET);
1488 if (!instance)
c8992cff 1489 return rp->status;
cba6b758
LAD		 1490
1491 hci_dev_lock(hdev);
1492
1493 err = hci_remove_adv_instance(hdev, *instance);
1494 if (!err)
1495 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev,
1496 *instance);
1497
1498 hci_dev_unlock(hdev);
c8992cff
LAD		 1499
1500 return rp->status;
cba6b758
LAD		 1501}
1502
c8992cff
LAD		 1503static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data,
1504 struct sk_buff *skb)
cba6b758 1505{
c8992cff 1506 struct hci_ev_status *rp = data;
cba6b758
LAD		 1507 struct adv_info *adv, *n;
1508 int err;
1509
e3f3a1ae
LAD		 1510 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1511
1512 if (rp->status)
c8992cff 1513 return rp->status;
cba6b758
LAD		 1514
1515 if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS))
c8992cff 1516 return rp->status;
cba6b758
LAD		 1517
1518 hci_dev_lock(hdev);
1519
1520 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
1521 u8 instance = adv->instance;
1522
1523 err = hci_remove_adv_instance(hdev, instance);
1524 if (!err)
1525 mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd),
1526 hdev, instance);
1527 }
1528
1529 hci_dev_unlock(hdev);
c8992cff
LAD		 1530
1531 return rp->status;
cba6b758
LAD		 1532}
1533
c8992cff
LAD		 1534static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data,
1535 struct sk_buff *skb)
7c395ea5 1536{
c8992cff 1537 struct hci_rp_le_read_transmit_power *rp = data;
e3f3a1ae
LAD		 1538
1539 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
7c395ea5
DW		 1540
1541 if (rp->status)
c8992cff 1542 return rp->status;
7c395ea5
DW		 1543
1544 hdev->min_le_tx_power = rp->min_le_tx_power;
1545 hdev->max_le_tx_power = rp->max_le_tx_power;
c8992cff
LAD		 1546
1547 return rp->status;
7c395ea5
DW		 1548}
1549
853b70b5
LAD		 1550static u8 hci_cc_le_set_privacy_mode(struct hci_dev *hdev, void *data,
1551 struct sk_buff *skb)
1552{
1553 struct hci_ev_status *rp = data;
1554 struct hci_cp_le_set_privacy_mode *cp;
1555 struct hci_conn_params *params;
1556
1557 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1558
1559 if (rp->status)
1560 return rp->status;
1561
1562 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PRIVACY_MODE);
1563 if (!cp)
1564 return rp->status;
1565
1566 hci_dev_lock(hdev);
1567
1568 params = hci_conn_params_lookup(hdev, &cp->bdaddr, cp->bdaddr_type);
1569 if (params)
195ef75e 1570 WRITE_ONCE(params->privacy_mode, cp->mode);
853b70b5
LAD		 1571
1572 hci_dev_unlock(hdev);
1573
1574 return rp->status;
1575}
1576
c8992cff
LAD		 1577static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data,
1578 struct sk_buff *skb)
c1d5dc4a 1579{
c8992cff 1580 struct hci_ev_status *rp = data;
e3f3a1ae 1581 __u8 *sent;
c1d5dc4a 1582
e3f3a1ae
LAD		 1583 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1584
1585 if (rp->status)
c8992cff 1586 return rp->status;
c1d5dc4a 1587
45296acd
MH		 1588 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE);
1589 if (!sent)
c8992cff 1590 return rp->status;
3c857757 1591
c1d5dc4a
JH		 1592 hci_dev_lock(hdev);
1593
49c922bb 1594 /* If we're doing connection initiation as peripheral. Set a
3c857757
JH		 1595 * timeout in case something goes wrong.
1596 */
1597 if (*sent) {
1598 struct hci_conn *conn;
1599
a1536da2 1600 hci_dev_set_flag(hdev, HCI_LE_ADV);
66c417c1 1601
e7d9ab73 1602 conn = hci_lookup_le_connect(hdev);
3c857757
JH		 1603 if (conn)
1604 queue_delayed_work(hdev->workqueue,
1605 &conn->le_conn_timeout,
09ae260b 1606 conn->conn_timeout);
66c417c1 1607 } else {
a358dc11 1608 hci_dev_clear_flag(hdev, HCI_LE_ADV);
3c857757
JH		 1609 }
1610
04b4edcb 1611 hci_dev_unlock(hdev);
c8992cff
LAD		 1612
1613 return rp->status;
c1d5dc4a
JH		 1614}
1615
c8992cff
LAD		 1616static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data,
1617 struct sk_buff *skb)
de181e88
JK		 1618{
1619 struct hci_cp_le_set_ext_adv_enable *cp;
10279313 1620 struct hci_cp_ext_adv_set *set;
10279313 1621 struct adv_info *adv = NULL, *n;
c8992cff 1622 struct hci_ev_status *rp = data;
de181e88 1623
e3f3a1ae
LAD		 1624 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1625
1626 if (rp->status)
c8992cff 1627 return rp->status;
de181e88
JK		 1628
1629 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE);
1630 if (!cp)
c8992cff 1631 return rp->status;
de181e88 1632
10279313
LAD		 1633 set = (void *)cp->data;
1634
de181e88
JK		 1635 hci_dev_lock(hdev);
1636
10279313
LAD		 1637 if (cp->num_of_sets)
1638 adv = hci_find_adv_instance(hdev, set->handle);
1639
de181e88
JK		 1640 if (cp->enable) {
1641 struct hci_conn *conn;
1642
1643 hci_dev_set_flag(hdev, HCI_LE_ADV);
1644
6a42e9bf 1645 if (adv && !adv->periodic)
10279313
LAD		 1646 adv->enabled = true;
1647
de181e88
JK		 1648 conn = hci_lookup_le_connect(hdev);
1649 if (conn)
1650 queue_delayed_work(hdev->workqueue,
1651 &conn->le_conn_timeout,
1652 conn->conn_timeout);
45b7749f 1653 } else {
2128939f
AP		 1654 if (cp->num_of_sets) {
1655 if (adv)
1656 adv->enabled = false;
1657
10279313
LAD		 1658 /* If just one instance was disabled check if there are
1659 * any other instance enabled before clearing HCI_LE_ADV
1660 */
1661 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1662 list) {
1663 if (adv->enabled)
1664 goto unlock;
1665 }
1666 } else {
1667 /* All instances shall be considered disabled */
1668 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
1669 list)
1670 adv->enabled = false;
1671 }
1672
45b7749f 1673 hci_dev_clear_flag(hdev, HCI_LE_ADV);
de181e88
JK		 1674 }
1675
10279313 1676unlock:
de181e88 1677 hci_dev_unlock(hdev);
c8992cff 1678 return rp->status;
de181e88
JK		 1679}
1680
c8992cff
LAD		 1681static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data,
1682 struct sk_buff *skb)
533553f8
MH		 1683{
1684 struct hci_cp_le_set_scan_param *cp;
c8992cff 1685 struct hci_ev_status *rp = data;
533553f8 1686
e3f3a1ae
LAD		 1687 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1688
1689 if (rp->status)
c8992cff 1690 return rp->status;
45296acd 1691
533553f8
MH		 1692 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
1693 if (!cp)
c8992cff 1694 return rp->status;
533553f8
MH		 1695
1696 hci_dev_lock(hdev);
1697
45296acd 1698 hdev->le_scan_type = cp->type;
533553f8
MH		 1699
1700 hci_dev_unlock(hdev);
c8992cff
LAD		 1701
1702 return rp->status;
533553f8
MH		 1703}
1704
c8992cff
LAD		 1705static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data,
1706 struct sk_buff *skb)
a2344b9e
JK		 1707{
1708 struct hci_cp_le_set_ext_scan_params *cp;
c8992cff 1709 struct hci_ev_status *rp = data;
a2344b9e
JK		 1710 struct hci_cp_le_scan_phy_params *phy_param;
1711
e3f3a1ae
LAD		 1712 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1713
1714 if (rp->status)
c8992cff 1715 return rp->status;
a2344b9e
JK		 1716
1717 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS);
1718 if (!cp)
c8992cff 1719 return rp->status;
a2344b9e
JK		 1720
1721 phy_param = (void *)cp->data;
1722
1723 hci_dev_lock(hdev);
1724
1725 hdev->le_scan_type = phy_param->type;
1726
1727 hci_dev_unlock(hdev);
c8992cff
LAD		 1728
1729 return rp->status;
a2344b9e
JK		 1730}
1731
b9a6328f
JH		 1732static bool has_pending_adv_report(struct hci_dev *hdev)
1733{
1734 struct discovery_state *d = &hdev->discovery;
1735
1736 return bacmp(&d->last_adv_addr, BDADDR_ANY);
1737}
1738
1739static void clear_pending_adv_report(struct hci_dev *hdev)
1740{
1741 struct discovery_state *d = &hdev->discovery;
1742
1743 bacpy(&d->last_adv_addr, BDADDR_ANY);
1744 d->last_adv_data_len = 0;
1745}
1746
1747static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr,
c70a7e4c
MH		 1748 u8 bdaddr_type, s8 rssi, u32 flags,
1749 u8 *data, u8 len)
b9a6328f
JH		 1750{
1751 struct discovery_state *d = &hdev->discovery;
1752
112b5090 1753 if (len > max_adv_len(hdev))
a2ec905d
AM		 1754 return;
1755
b9a6328f
JH		 1756 bacpy(&d->last_adv_addr, bdaddr);
1757 d->last_adv_addr_type = bdaddr_type;
ff5cd29f 1758 d->last_adv_rssi = rssi;
c70a7e4c 1759 d->last_adv_flags = flags;
b9a6328f
JH		 1760 memcpy(d->last_adv_data, data, len);
1761 d->last_adv_data_len = len;
1762}
1763
3baef810 1764static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable)
eb9d91f5 1765{
5c1a4c8f
JK		 1766 hci_dev_lock(hdev);
1767
3baef810 1768 switch (enable) {
76a388be 1769 case LE_SCAN_ENABLE:
a1536da2 1770 hci_dev_set_flag(hdev, HCI_LE_SCAN);
b9a6328f
JH		 1771 if (hdev->le_scan_type == LE_SCAN_ACTIVE)
1772 clear_pending_adv_report(hdev);
b338d917
BG		 1773 if (hci_dev_test_flag(hdev, HCI_MESH))
1774 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
68a8aea4
AE		 1775 break;
1776
76a388be 1777 case LE_SCAN_DISABLE:
b9a6328f
JH		 1778 /* We do this here instead of when setting DISCOVERY_STOPPED
1779 * since the latter would potentially require waiting for
1780 * inquiry to stop too.
1781 */
1782 if (has_pending_adv_report(hdev)) {
1783 struct discovery_state *d = &hdev->discovery;
1784
1785 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ab0aa433 1786 d->last_adv_addr_type, NULL,
c70a7e4c 1787 d->last_adv_rssi, d->last_adv_flags,
ab0aa433 1788 d->last_adv_data,
b338d917 1789 d->last_adv_data_len, NULL, 0, 0);
b9a6328f
JH		 1790 }
1791
317ac8cb
JH		 1792 /* Cancel this timer so that we don't try to disable scanning
1793 * when it's already disabled.
1794 */
1795 cancel_delayed_work(&hdev->le_scan_disable);
1796
a358dc11 1797 hci_dev_clear_flag(hdev, HCI_LE_SCAN);
e8bb6b97 1798
81ad6fd9
JH		 1799 /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we
1800 * interrupted scanning due to a connect request. Mark
abfeea47 1801 * therefore discovery as stopped.
81ad6fd9 1802 */
a69d8927 1803 if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED))
81ad6fd9 1804 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
b338d917
BG		 1805 else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) &&
1806 hdev->discovery.state == DISCOVERY_FINDING)
1807 queue_work(hdev->workqueue, &hdev->reenable_adv_work);
e8bb6b97 1808
68a8aea4
AE		 1809 break;
1810
1811 default:
2064ee33 1812 bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d",
3baef810 1813 enable);
68a8aea4 1814 break;
35815085 1815 }
5c1a4c8f
JK		 1816
1817 hci_dev_unlock(hdev);
eb9d91f5
AG		 1818}
1819
c8992cff
LAD		 1820static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data,
1821 struct sk_buff *skb)
3baef810
JK		 1822{
1823 struct hci_cp_le_set_scan_enable *cp;
c8992cff 1824 struct hci_ev_status *rp = data;
3baef810 1825
e3f3a1ae
LAD		 1826 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1827
1828 if (rp->status)
c8992cff 1829 return rp->status;
3baef810
JK		 1830
1831 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
1832 if (!cp)
c8992cff 1833 return rp->status;
3baef810
JK		 1834
1835 le_set_scan_enable_complete(hdev, cp->enable);
c8992cff
LAD		 1836
1837 return rp->status;
3baef810
JK		 1838}
1839
c8992cff
LAD		 1840static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data,
1841 struct sk_buff *skb)
a2344b9e
JK		 1842{
1843 struct hci_cp_le_set_ext_scan_enable *cp;
c8992cff 1844 struct hci_ev_status *rp = data;
a2344b9e 1845
e3f3a1ae
LAD		 1846 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1847
1848 if (rp->status)
c8992cff 1849 return rp->status;
a2344b9e
JK		 1850
1851 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE);
1852 if (!cp)
c8992cff 1853 return rp->status;
a2344b9e
JK		 1854
1855 le_set_scan_enable_complete(hdev, cp->enable);
c8992cff
LAD		 1856
1857 return rp->status;
a2344b9e
JK		 1858}
1859
c8992cff 1860static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data,
6b49bcb4
JK		 1861 struct sk_buff *skb)
1862{
c8992cff 1863 struct hci_rp_le_read_num_supported_adv_sets *rp = data;
6b49bcb4 1864
e3f3a1ae
LAD		 1865 bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u", rp->status,
1866 rp->num_of_sets);
6b49bcb4
JK		 1867
1868 if (rp->status)
c8992cff 1869 return rp->status;
6b49bcb4
JK		 1870
1871 hdev->le_num_of_adv_sets = rp->num_of_sets;
c8992cff
LAD		 1872
1873 return rp->status;
6b49bcb4
JK		 1874}
1875
c8992cff
LAD		 1876static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data,
1877 struct sk_buff *skb)
cf1d081f 1878{
c8992cff 1879 struct hci_rp_le_read_accept_list_size *rp = data;
e3f3a1ae
LAD		 1880
1881 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
cf1d081f 1882
45296acd 1883 if (rp->status)
c8992cff 1884 return rp->status;
45296acd 1885
3d4f9c00 1886 hdev->le_accept_list_size = rp->size;
c8992cff
LAD		 1887
1888 return rp->status;
cf1d081f
JH		 1889}
1890
c8992cff
LAD		 1891static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data,
1892 struct sk_buff *skb)
0f36b589 1893{
c8992cff 1894 struct hci_ev_status *rp = data;
0f36b589 1895
e3f3a1ae
LAD		 1896 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1897
1898 if (rp->status)
c8992cff 1899 return rp->status;
45296acd 1900
5e2b6064 1901 hci_dev_lock(hdev);
3d4f9c00 1902 hci_bdaddr_list_clear(&hdev->le_accept_list);
5e2b6064 1903 hci_dev_unlock(hdev);
c8992cff
LAD		 1904
1905 return rp->status;
0f36b589
MH		 1906}
1907
c8992cff
LAD		 1908static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data,
1909 struct sk_buff *skb)
0f36b589 1910{
3d4f9c00 1911 struct hci_cp_le_add_to_accept_list *sent;
c8992cff 1912 struct hci_ev_status *rp = data;
0f36b589 1913
e3f3a1ae
LAD		 1914 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1915
1916 if (rp->status)
c8992cff 1917 return rp->status;
45296acd 1918
3d4f9c00 1919 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST);
0f36b589 1920 if (!sent)
c8992cff 1921 return rp->status;
0f36b589 1922
5e2b6064 1923 hci_dev_lock(hdev);
3d4f9c00
AP		 1924 hci_bdaddr_list_add(&hdev->le_accept_list, &sent->bdaddr,
1925 sent->bdaddr_type);
5e2b6064 1926 hci_dev_unlock(hdev);
c8992cff
LAD		 1927
1928 return rp->status;
0f36b589
MH		 1929}
1930
c8992cff
LAD		 1931static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data,
1932 struct sk_buff *skb)
0f36b589 1933{
3d4f9c00 1934 struct hci_cp_le_del_from_accept_list *sent;
c8992cff 1935 struct hci_ev_status *rp = data;
0f36b589 1936
e3f3a1ae
LAD		 1937 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1938
1939 if (rp->status)
c8992cff 1940 return rp->status;
45296acd 1941
3d4f9c00 1942 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST);
0f36b589 1943 if (!sent)
c8992cff 1944 return rp->status;
0f36b589 1945
5e2b6064 1946 hci_dev_lock(hdev);
3d4f9c00 1947 hci_bdaddr_list_del(&hdev->le_accept_list, &sent->bdaddr,
dcc36c16 1948 sent->bdaddr_type);
5e2b6064 1949 hci_dev_unlock(hdev);
c8992cff
LAD		 1950
1951 return rp->status;
0f36b589
MH		 1952}
1953
c8992cff
LAD		 1954static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data,
1955 struct sk_buff *skb)
9b008c04 1956{
c8992cff 1957 struct hci_rp_le_read_supported_states *rp = data;
e3f3a1ae
LAD		 1958
1959 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
9b008c04 1960
45296acd 1961 if (rp->status)
c8992cff 1962 return rp->status;
45296acd
MH		 1963
1964 memcpy(hdev->le_states, rp->le_states, 8);
c8992cff
LAD		 1965
1966 return rp->status;
9b008c04
JH		 1967}
1968
c8992cff
LAD		 1969static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data,
1970 struct sk_buff *skb)
a8e1bfaa 1971{
c8992cff 1972 struct hci_rp_le_read_def_data_len *rp = data;
e3f3a1ae
LAD		 1973
1974 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a8e1bfaa
MH		 1975
1976 if (rp->status)
c8992cff 1977 return rp->status;
a8e1bfaa
MH		 1978
1979 hdev->le_def_tx_len = le16_to_cpu(rp->tx_len);
1980 hdev->le_def_tx_time = le16_to_cpu(rp->tx_time);
c8992cff
LAD		 1981
1982 return rp->status;
a8e1bfaa
MH		 1983}
1984
c8992cff
LAD		 1985static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data,
1986 struct sk_buff *skb)
a8e1bfaa
MH		 1987{
1988 struct hci_cp_le_write_def_data_len *sent;
c8992cff 1989 struct hci_ev_status *rp = data;
a8e1bfaa 1990
e3f3a1ae
LAD		 1991 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
1992
1993 if (rp->status)
c8992cff 1994 return rp->status;
a8e1bfaa
MH		 1995
1996 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN);
1997 if (!sent)
c8992cff 1998 return rp->status;
a8e1bfaa
MH		 1999
2000 hdev->le_def_tx_len = le16_to_cpu(sent->tx_len);
2001 hdev->le_def_tx_time = le16_to_cpu(sent->tx_time);
c8992cff
LAD		 2002
2003 return rp->status;
a8e1bfaa
MH		 2004}
2005
c8992cff
LAD		 2006static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data,
2007 struct sk_buff *skb)
b950aa88
AN		 2008{
2009 struct hci_cp_le_add_to_resolv_list *sent;
c8992cff 2010 struct hci_ev_status *rp = data;
b950aa88 2011
e3f3a1ae
LAD		 2012 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2013
2014 if (rp->status)
c8992cff 2015 return rp->status;
b950aa88
AN		 2016
2017 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST);
2018 if (!sent)
c8992cff 2019 return rp->status;
b950aa88 2020
5e2b6064 2021 hci_dev_lock(hdev);
b950aa88
AN		 2022 hci_bdaddr_list_add_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2023 sent->bdaddr_type, sent->peer_irk,
2024 sent->local_irk);
5e2b6064 2025 hci_dev_unlock(hdev);
c8992cff
LAD		 2026
2027 return rp->status;
b950aa88
AN		 2028}
2029
c8992cff
LAD		 2030static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data,
2031 struct sk_buff *skb)
b950aa88
AN		 2032{
2033 struct hci_cp_le_del_from_resolv_list *sent;
c8992cff 2034 struct hci_ev_status *rp = data;
b950aa88 2035
e3f3a1ae
LAD		 2036 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2037
2038 if (rp->status)
c8992cff 2039 return rp->status;
b950aa88
AN		 2040
2041 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST);
2042 if (!sent)
c8992cff 2043 return rp->status;
b950aa88 2044
5e2b6064 2045 hci_dev_lock(hdev);
b950aa88
AN		 2046 hci_bdaddr_list_del_with_irk(&hdev->le_resolv_list, &sent->bdaddr,
2047 sent->bdaddr_type);
5e2b6064 2048 hci_dev_unlock(hdev);
c8992cff
LAD		 2049
2050 return rp->status;
b950aa88
AN		 2051}
2052
c8992cff
LAD		 2053static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data,
2054 struct sk_buff *skb)
545f2596 2055{
c8992cff 2056 struct hci_ev_status *rp = data;
545f2596 2057
e3f3a1ae
LAD		 2058 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2059
2060 if (rp->status)
c8992cff 2061 return rp->status;
545f2596 2062
5e2b6064 2063 hci_dev_lock(hdev);
545f2596 2064 hci_bdaddr_list_clear(&hdev->le_resolv_list);
5e2b6064 2065 hci_dev_unlock(hdev);
c8992cff
LAD		 2066
2067 return rp->status;
545f2596
AN		 2068}
2069
c8992cff
LAD		 2070static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data,
2071 struct sk_buff *skb)
cfdb0c2d 2072{
c8992cff 2073 struct hci_rp_le_read_resolv_list_size *rp = data;
e3f3a1ae
LAD		 2074
2075 bt_dev_dbg(hdev, "status 0x%2.2x size %u", rp->status, rp->size);
cfdb0c2d
AN		 2076
2077 if (rp->status)
c8992cff 2078 return rp->status;
cfdb0c2d
AN		 2079
2080 hdev->le_resolv_list_size = rp->size;
c8992cff
LAD		 2081
2082 return rp->status;
cfdb0c2d
AN		 2083}
2084
c8992cff
LAD		 2085static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data,
2086 struct sk_buff *skb)
aa12af77 2087{
c8992cff 2088 struct hci_ev_status *rp = data;
e3f3a1ae 2089 __u8 *sent;
aa12af77 2090
e3f3a1ae
LAD		 2091 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2092
2093 if (rp->status)
c8992cff 2094 return rp->status;
aa12af77
AN		 2095
2096 sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE);
2097 if (!sent)
c8992cff 2098 return rp->status;
aa12af77
AN		 2099
2100 hci_dev_lock(hdev);
2101
2102 if (*sent)
2103 hci_dev_set_flag(hdev, HCI_LL_RPA_RESOLUTION);
2104 else
2105 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);
2106
2107 hci_dev_unlock(hdev);
c8992cff
LAD		 2108
2109 return rp->status;
aa12af77
AN		 2110}
2111
c8992cff
LAD		 2112static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data,
2113 struct sk_buff *skb)
a8e1bfaa 2114{
c8992cff 2115 struct hci_rp_le_read_max_data_len *rp = data;
e3f3a1ae
LAD		 2116
2117 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
a8e1bfaa
MH		 2118
2119 if (rp->status)
c8992cff 2120 return rp->status;
a8e1bfaa
MH		 2121
2122 hdev->le_max_tx_len = le16_to_cpu(rp->tx_len);
2123 hdev->le_max_tx_time = le16_to_cpu(rp->tx_time);
2124 hdev->le_max_rx_len = le16_to_cpu(rp->rx_len);
2125 hdev->le_max_rx_time = le16_to_cpu(rp->rx_time);
c8992cff
LAD		 2126
2127 return rp->status;
a8e1bfaa
MH		 2128}
2129
c8992cff
LAD		 2130static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data,
2131 struct sk_buff *skb)
f9b49306 2132{
06199cf8 2133 struct hci_cp_write_le_host_supported *sent;
c8992cff 2134 struct hci_ev_status *rp = data;
f9b49306 2135
e3f3a1ae
LAD		 2136 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2137
2138 if (rp->status)
c8992cff 2139 return rp->status;
45296acd 2140
06199cf8 2141 sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED);
8f984dfa 2142 if (!sent)
c8992cff 2143 return rp->status;
f9b49306 2144
5c1a4c8f
JK		 2145 hci_dev_lock(hdev);
2146
45296acd
MH		 2147 if (sent->le) {
2148 hdev->features[1][0] |= LMP_HOST_LE;
a1536da2 2149 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
45296acd
MH		 2150 } else {
2151 hdev->features[1][0] &= ~LMP_HOST_LE;
a358dc11
MH		 2152 hci_dev_clear_flag(hdev, HCI_LE_ENABLED);
2153 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
8f984dfa 2154 }
45296acd
MH		 2155
2156 if (sent->simul)
2157 hdev->features[1][0] |= LMP_HOST_LE_BREDR;
2158 else
2159 hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
5c1a4c8f
JK		 2160
2161 hci_dev_unlock(hdev);
c8992cff
LAD		 2162
2163 return rp->status;
f9b49306
AG		 2164}
2165
c8992cff
LAD		 2166static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data,
2167 struct sk_buff *skb)
56ed2cb8
JH		 2168{
2169 struct hci_cp_le_set_adv_param *cp;
c8992cff 2170 struct hci_ev_status *rp = data;
56ed2cb8 2171
e3f3a1ae
LAD		 2172 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2173
2174 if (rp->status)
c8992cff 2175 return rp->status;
56ed2cb8
JH		 2176
2177 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM);
2178 if (!cp)
c8992cff 2179 return rp->status;
56ed2cb8
JH		 2180
2181 hci_dev_lock(hdev);
2182 hdev->adv_addr_type = cp->own_address_type;
2183 hci_dev_unlock(hdev);
c8992cff
LAD		 2184
2185 return rp->status;
56ed2cb8
JH		 2186}
2187
c8992cff
LAD		 2188static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data,
2189 struct sk_buff *skb)
de181e88 2190{
c8992cff 2191 struct hci_rp_le_set_ext_adv_params *rp = data;
de181e88
JK		 2192 struct hci_cp_le_set_ext_adv_params *cp;
2193 struct adv_info *adv_instance;
2194
e3f3a1ae 2195 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
de181e88
JK		 2196
2197 if (rp->status)
c8992cff 2198 return rp->status;
de181e88
JK		 2199
2200 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS);
2201 if (!cp)
c8992cff 2202 return rp->status;
de181e88
JK		 2203
2204 hci_dev_lock(hdev);
2205 hdev->adv_addr_type = cp->own_addr_type;
25e70886 2206 if (!cp->handle) {
de181e88
JK		 2207 /* Store in hdev for instance 0 */
2208 hdev->adv_tx_power = rp->tx_power;
2209 } else {
25e70886 2210 adv_instance = hci_find_adv_instance(hdev, cp->handle);
de181e88
JK		 2211 if (adv_instance)
2212 adv_instance->tx_power = rp->tx_power;
2213 }
a0fb3726 2214 /* Update adv data as tx power is known now */
651cd3d6 2215 hci_update_adv_data(hdev, cp->handle);
12410572 2216
de181e88 2217 hci_dev_unlock(hdev);
c8992cff
LAD		 2218
2219 return rp->status;
de181e88
JK		 2220}
2221
c8992cff
LAD		 2222static u8 hci_cc_read_rssi(struct hci_dev *hdev, void *data,
2223 struct sk_buff *skb)
5ae76a94 2224{
c8992cff 2225 struct hci_rp_read_rssi *rp = data;
5ae76a94
AK		 2226 struct hci_conn *conn;
2227
e3f3a1ae 2228 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
5ae76a94
AK		 2229
2230 if (rp->status)
c8992cff 2231 return rp->status;
5ae76a94
AK		 2232
2233 hci_dev_lock(hdev);
2234
2235 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
2236 if (conn)
2237 conn->rssi = rp->rssi;
2238
2239 hci_dev_unlock(hdev);
c8992cff
LAD		 2240
2241 return rp->status;
5ae76a94
AK		 2242}
2243
c8992cff
LAD		 2244static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data,
2245 struct sk_buff *skb)
5a134fae
AK		 2246{
2247 struct hci_cp_read_tx_power *sent;
c8992cff 2248 struct hci_rp_read_tx_power *rp = data;
5a134fae
AK		 2249 struct hci_conn *conn;
2250
e3f3a1ae 2251 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
5a134fae
AK		 2252
2253 if (rp->status)
c8992cff 2254 return rp->status;
5a134fae
AK		 2255
2256 sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
2257 if (!sent)
c8992cff 2258 return rp->status;
5a134fae
AK		 2259
2260 hci_dev_lock(hdev);
2261
2262 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
d0455ed9
AK		 2263 if (!conn)
2264 goto unlock;
2265
2266 switch (sent->type) {
2267 case 0x00:
5a134fae 2268 conn->tx_power = rp->tx_power;
d0455ed9
AK		 2269 break;
2270 case 0x01:
2271 conn->max_tx_power = rp->tx_power;
2272 break;
2273 }
5a134fae 2274
d0455ed9 2275unlock:
5a134fae 2276 hci_dev_unlock(hdev);
c8992cff 2277 return rp->status;
5a134fae
AK		 2278}
2279
c8992cff
LAD		 2280static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data,
2281 struct sk_buff *skb)
c50b33c8 2282{
c8992cff 2283 struct hci_ev_status *rp = data;
c50b33c8
MH		 2284 u8 *mode;
2285
e3f3a1ae
LAD		 2286 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
2287
2288 if (rp->status)
c8992cff 2289 return rp->status;
c50b33c8
MH		 2290
2291 mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE);
2292 if (mode)
2293 hdev->ssp_debug_mode = *mode;
c8992cff
LAD		 2294
2295 return rp->status;
c50b33c8
MH		 2296}
2297
6039aa73 2298static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
a9de9248 2299{
147306cc 2300 bt_dev_dbg(hdev, "status 0x%2.2x", status);
a9de9248
MH		 2301
2302 if (status) {
a9de9248 2303 hci_conn_check_pending(hdev);
314b2381
JH		 2304 return;
2305 }
2306
89352e7d 2307 set_bit(HCI_INQUIRY, &hdev->flags);
1da177e4
LT		 2308}
2309
6039aa73 2310static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
1da177e4 2311{
a9de9248 2312 struct hci_cp_create_conn *cp;
1da177e4 2313 struct hci_conn *conn;
1da177e4 2314
147306cc 2315 bt_dev_dbg(hdev, "status 0x%2.2x", status);
a9de9248
MH		 2316
2317 cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN);
1da177e4
LT		 2318 if (!cp)
2319 return;
2320
2321 hci_dev_lock(hdev);
2322
2323 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2324
147306cc 2325 bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn);
1da177e4
LT		 2326
2327 if (status) {
2328 if (conn && conn->state == BT_CONNECT) {
4c67bc74
MH		 2329 if (status != 0x0c || conn->attempt > 2) {
2330 conn->state = BT_CLOSED;
539c496d 2331 hci_connect_cfm(conn, status);
4c67bc74
MH		 2332 hci_conn_del(conn);
2333 } else
2334 conn->state = BT_CONNECT2;
1da177e4
LT		 2335 }
2336 } else {
2337 if (!conn) {
181a42ed
ZX		 2338 conn = hci_conn_add_unset(hdev, ACL_LINK, &cp->bdaddr,
2339 HCI_ROLE_MASTER);
a5c4e309 2340 if (!conn)
2064ee33 2341 bt_dev_err(hdev, "no memory for new connection");
1da177e4
LT		 2342 }
2343 }
2344
2345 hci_dev_unlock(hdev);
2346}
2347
a9de9248 2348static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status)
1da177e4 2349{
a9de9248 2350 struct hci_cp_add_sco *cp;
06149746
LAD		 2351 struct hci_conn *acl;
2352 struct hci_link *link;
a9de9248 2353 __u16 handle;
1da177e4 2354
147306cc 2355 bt_dev_dbg(hdev, "status 0x%2.2x", status);
b6a0dc82 2356
a9de9248
MH		 2357 if (!status)
2358 return;
1da177e4 2359
a9de9248
MH		 2360 cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO);
2361 if (!cp)
2362 return;
1da177e4 2363
a9de9248 2364 handle = __le16_to_cpu(cp->handle);
1da177e4 2365
147306cc 2366 bt_dev_dbg(hdev, "handle 0x%4.4x", handle);
1da177e4 2367
a9de9248 2368 hci_dev_lock(hdev);
1da177e4 2369
a9de9248 2370 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce 2371 if (acl) {
06149746
LAD		 2372 link = list_first_entry_or_null(&acl->link_list,
2373 struct hci_link, list);
2374 if (link && link->conn) {
2375 link->conn->state = BT_CLOSED;
1da177e4 2376
06149746
LAD		 2377 hci_connect_cfm(link->conn, status);
2378 hci_conn_del(link->conn);
5a08ecce 2379 }
a9de9248 2380 }
1da177e4 2381
a9de9248
MH		 2382 hci_dev_unlock(hdev);
2383}
1da177e4 2384
f8558555
MH		 2385static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status)
2386{
2387 struct hci_cp_auth_requested *cp;
2388 struct hci_conn *conn;
2389
147306cc 2390 bt_dev_dbg(hdev, "status 0x%2.2x", status);
f8558555
MH		 2391
2392 if (!status)
2393 return;
2394
2395 cp = hci_sent_cmd_data(hdev, HCI_OP_AUTH_REQUESTED);
2396 if (!cp)
2397 return;
2398
2399 hci_dev_lock(hdev);
2400
2401 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2402 if (conn) {
2403 if (conn->state == BT_CONFIG) {
539c496d 2404 hci_connect_cfm(conn, status);
76a68ba0 2405 hci_conn_drop(conn);
f8558555
MH		 2406 }
2407 }
2408
2409 hci_dev_unlock(hdev);
2410}
2411
2412static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status)
2413{
2414 struct hci_cp_set_conn_encrypt *cp;
2415 struct hci_conn *conn;
2416
147306cc 2417 bt_dev_dbg(hdev, "status 0x%2.2x", status);
f8558555
MH		 2418
2419 if (!status)
2420 return;
2421
2422 cp = hci_sent_cmd_data(hdev, HCI_OP_SET_CONN_ENCRYPT);
2423 if (!cp)
2424 return;
2425
2426 hci_dev_lock(hdev);
2427
2428 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2429 if (conn) {
2430 if (conn->state == BT_CONFIG) {
539c496d 2431 hci_connect_cfm(conn, status);
76a68ba0 2432 hci_conn_drop(conn);
f8558555
MH		 2433 }
2434 }
2435
2436 hci_dev_unlock(hdev);
2437}
2438
127178d2 2439static int hci_outgoing_auth_needed(struct hci_dev *hdev,
807deac2 2440 struct hci_conn *conn)
392599b9 2441{
392599b9
JH		 2442 if (conn->state != BT_CONFIG || !conn->out)
2443 return 0;
2444
765c2a96 2445 if (conn->pending_sec_level == BT_SECURITY_SDP)
392599b9
JH		 2446 return 0;
2447
2448 /* Only request authentication for SSP connections or non-SSP
264b8b4e
JH		 2449 * devices with sec_level MEDIUM or HIGH or if MITM protection
2450 * is requested.
2451 */
807deac2 2452 if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) &&
7e3691e1 2453 conn->pending_sec_level != BT_SECURITY_FIPS &&
264b8b4e
JH		 2454 conn->pending_sec_level != BT_SECURITY_HIGH &&
2455 conn->pending_sec_level != BT_SECURITY_MEDIUM)
392599b9
JH		 2456 return 0;
2457
392599b9
JH		 2458 return 1;
2459}
2460
6039aa73 2461static int hci_resolve_name(struct hci_dev *hdev,
04124681 2462 struct inquiry_entry *e)
30dc78e1
JH		 2463{
2464 struct hci_cp_remote_name_req cp;
2465
2466 memset(&cp, 0, sizeof(cp));
2467
2468 bacpy(&cp.bdaddr, &e->data.bdaddr);
2469 cp.pscan_rep_mode = e->data.pscan_rep_mode;
2470 cp.pscan_mode = e->data.pscan_mode;
2471 cp.clock_offset = e->data.clock_offset;
2472
2473 return hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
2474}
2475
b644ba33 2476static bool hci_resolve_next_name(struct hci_dev *hdev)
30dc78e1
JH		 2477{
2478 struct discovery_state *discov = &hdev->discovery;
2479 struct inquiry_entry *e;
2480
b644ba33
JH		 2481 if (list_empty(&discov->resolve))
2482 return false;
2483
dbf6811a
AP		 2484 /* We should stop if we already spent too much time resolving names. */
2485 if (time_after(jiffies, discov->name_resolve_timeout)) {
2486 bt_dev_warn_ratelimited(hdev, "Name resolve takes too long.");
2487 return false;
2488 }
2489
b644ba33 2490 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
c810089c
RM		 2491 if (!e)
2492 return false;
2493
b644ba33
JH		 2494 if (hci_resolve_name(hdev, e) == 0) {
2495 e->name_state = NAME_PENDING;
2496 return true;
2497 }
2498
2499 return false;
2500}
2501
2502static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn,
04124681 2503 bdaddr_t *bdaddr, u8 *name, u8 name_len)
b644ba33
JH		 2504{
2505 struct discovery_state *discov = &hdev->discovery;
2506 struct inquiry_entry *e;
2507
60cb49d2
JH		 2508 /* Update the mgmt connected state if necessary. Be careful with
2509 * conn objects that exist but are not (yet) connected however.
2510 * Only those in BT_CONFIG or BT_CONNECTED states can be
2511 * considered connected.
2512 */
2513 if (conn &&
2514 (conn->state == BT_CONFIG || conn->state == BT_CONNECTED) &&
cb77c3ec 2515 !test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1c6ed31b 2516 mgmt_device_connected(hdev, conn, name, name_len);
b644ba33
JH		 2517
2518 if (discov->state == DISCOVERY_STOPPED)
2519 return;
2520
30dc78e1
JH		 2521 if (discov->state == DISCOVERY_STOPPING)
2522 goto discov_complete;
2523
2524 if (discov->state != DISCOVERY_RESOLVING)
2525 return;
2526
2527 e = hci_inquiry_cache_lookup_resolve(hdev, bdaddr, NAME_PENDING);
7cc8380e
RM		 2528 /* If the device was not found in a list of found devices names of which
2529 * are pending. there is no need to continue resolving a next name as it
2530 * will be done upon receiving another Remote Name Request Complete
2531 * Event */
2532 if (!e)
2533 return;
2534
2535 list_del(&e->list);
ea13aed5
AP		 2536
2537 e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN;
2538 mgmt_remote_name(hdev, bdaddr, ACL_LINK, 0x00, e->data.rssi,
2539 name, name_len);
30dc78e1 2540
b644ba33 2541 if (hci_resolve_next_name(hdev))
30dc78e1 2542 return;
30dc78e1
JH		 2543
2544discov_complete:
2545 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2546}
2547
a9de9248
MH		 2548static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
2549{
127178d2
JH		 2550 struct hci_cp_remote_name_req *cp;
2551 struct hci_conn *conn;
2552
147306cc 2553 bt_dev_dbg(hdev, "status 0x%2.2x", status);
127178d2
JH		 2554
2555 /* If successful wait for the name req complete event before
2556 * checking for the need to do authentication */
2557 if (!status)
2558 return;
2559
2560 cp = hci_sent_cmd_data(hdev, HCI_OP_REMOTE_NAME_REQ);
2561 if (!cp)
2562 return;
2563
2564 hci_dev_lock(hdev);
2565
b644ba33
JH		 2566 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
2567
d7a5a11d 2568 if (hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 2569 hci_check_pending_name(hdev, conn, &cp->bdaddr, NULL, 0);
30dc78e1 2570
79c6c70c
JH		 2571 if (!conn)
2572 goto unlock;
2573
2574 if (!hci_outgoing_auth_needed(hdev, conn))
2575 goto unlock;
2576
51a8efd7 2577 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
c1f23a2b
JB		 2578 struct hci_cp_auth_requested auth_cp;
2579
977f8fce
JH		 2580 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
2581
c1f23a2b
JB		 2582 auth_cp.handle = __cpu_to_le16(conn->handle);
2583 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
2584 sizeof(auth_cp), &auth_cp);
127178d2
JH		 2585 }
2586
79c6c70c 2587unlock:
127178d2 2588 hci_dev_unlock(hdev);
a9de9248 2589}
1da177e4 2590
769be974
MH		 2591static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status)
2592{
2593 struct hci_cp_read_remote_features *cp;
2594 struct hci_conn *conn;
2595
147306cc 2596 bt_dev_dbg(hdev, "status 0x%2.2x", status);
769be974
MH		 2597
2598 if (!status)
2599 return;
2600
2601 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_FEATURES);
2602 if (!cp)
2603 return;
2604
2605 hci_dev_lock(hdev);
2606
2607 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2608 if (conn) {
2609 if (conn->state == BT_CONFIG) {
539c496d 2610 hci_connect_cfm(conn, status);
76a68ba0 2611 hci_conn_drop(conn);
769be974
MH		 2612 }
2613 }
2614
2615 hci_dev_unlock(hdev);
2616}
2617
2618static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status)
2619{
2620 struct hci_cp_read_remote_ext_features *cp;
2621 struct hci_conn *conn;
2622
147306cc 2623 bt_dev_dbg(hdev, "status 0x%2.2x", status);
769be974
MH		 2624
2625 if (!status)
2626 return;
2627
2628 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES);
2629 if (!cp)
2630 return;
2631
2632 hci_dev_lock(hdev);
2633
2634 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2635 if (conn) {
2636 if (conn->state == BT_CONFIG) {
539c496d 2637 hci_connect_cfm(conn, status);
76a68ba0 2638 hci_conn_drop(conn);
769be974
MH		 2639 }
2640 }
2641
2642 hci_dev_unlock(hdev);
2643}
2644
06149746
LAD		 2645static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle,
2646 __u8 status)
a9de9248 2647{
06149746
LAD		 2648 struct hci_conn *acl;
2649 struct hci_link *link;
b6a0dc82 2650
06149746 2651 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x", handle, status);
b6a0dc82
MH		 2652
2653 hci_dev_lock(hdev);
2654
2655 acl = hci_conn_hash_lookup_handle(hdev, handle);
5a08ecce 2656 if (acl) {
06149746
LAD		 2657 link = list_first_entry_or_null(&acl->link_list,
2658 struct hci_link, list);
2659 if (link && link->conn) {
2660 link->conn->state = BT_CLOSED;
b6a0dc82 2661
06149746
LAD		 2662 hci_connect_cfm(link->conn, status);
2663 hci_conn_del(link->conn);
5a08ecce 2664 }
b6a0dc82
MH		 2665 }
2666
2667 hci_dev_unlock(hdev);
1da177e4
LT		 2668}
2669
06149746 2670static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status)
b2af264a 2671{
06149746 2672 struct hci_cp_setup_sync_conn *cp;
b2af264a
K		 2673
2674 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2675
2676 if (!status)
2677 return;
2678
06149746 2679 cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN);
b2af264a
K		 2680 if (!cp)
2681 return;
2682
06149746
LAD		 2683 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
2684}
b2af264a 2685
06149746
LAD		 2686static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status)
2687{
2688 struct hci_cp_enhanced_setup_sync_conn *cp;
b2af264a 2689
06149746 2690 bt_dev_dbg(hdev, "status 0x%2.2x", status);
b2af264a 2691
06149746
LAD		 2692 if (!status)
2693 return;
b2af264a 2694
06149746
LAD		 2695 cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN);
2696 if (!cp)
2697 return;
b2af264a 2698
06149746 2699 hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status);
b2af264a
K		 2700}
2701
a9de9248 2702static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status)
1da177e4 2703{
a9de9248
MH		 2704 struct hci_cp_sniff_mode *cp;
2705 struct hci_conn *conn;
1da177e4 2706
147306cc 2707 bt_dev_dbg(hdev, "status 0x%2.2x", status);
04837f64 2708
a9de9248
MH		 2709 if (!status)
2710 return;
04837f64 2711
a9de9248
MH		 2712 cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE);
2713 if (!cp)
2714 return;
04837f64 2715
a9de9248 2716 hci_dev_lock(hdev);
04837f64 2717
a9de9248 2718 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 2719 if (conn) {
51a8efd7 2720 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
04837f64 2721
51a8efd7 2722 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 2723 hci_sco_setup(conn, status);
2724 }
2725
a9de9248
MH		 2726 hci_dev_unlock(hdev);
2727}
04837f64 2728
a9de9248
MH		 2729static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status)
2730{
2731 struct hci_cp_exit_sniff_mode *cp;
2732 struct hci_conn *conn;
04837f64 2733
147306cc 2734 bt_dev_dbg(hdev, "status 0x%2.2x", status);
04837f64 2735
a9de9248
MH		 2736 if (!status)
2737 return;
04837f64 2738
a9de9248
MH		 2739 cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE);
2740 if (!cp)
2741 return;
04837f64 2742
a9de9248 2743 hci_dev_lock(hdev);
1da177e4 2744
a9de9248 2745 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
e73439d8 2746 if (conn) {
51a8efd7 2747 clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags);
1da177e4 2748
51a8efd7 2749 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8
MH		 2750 hci_sco_setup(conn, status);
2751 }
2752
a9de9248 2753 hci_dev_unlock(hdev);
1da177e4
LT		 2754}
2755
88c3df13
JH		 2756static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
2757{
2758 struct hci_cp_disconnect *cp;
182ee45d 2759 struct hci_conn_params *params;
88c3df13 2760 struct hci_conn *conn;
182ee45d 2761 bool mgmt_conn;
88c3df13 2762
147306cc
LAD		 2763 bt_dev_dbg(hdev, "status 0x%2.2x", status);
2764
182ee45d
LAD		 2765 /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended
2766 * otherwise cleanup the connection immediately.
2767 */
2768 if (!status && !hdev->suspended)
88c3df13
JH		 2769 return;
2770
2771 cp = hci_sent_cmd_data(hdev, HCI_OP_DISCONNECT);
2772 if (!cp)
2773 return;
2774
2775 hci_dev_lock(hdev);
2776
2777 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
182ee45d
LAD		 2778 if (!conn)
2779 goto unlock;
2780
2781 if (status) {
88c3df13 2782 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
04124681 2783 conn->dst_type, status);
88c3df13 2784
1eeaa1ae 2785 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
7087c4f6 2786 hdev->cur_adv_instance = conn->adv_instance;
abfeea47 2787 hci_enable_advertising(hdev);
7087c4f6
LAD		 2788 }
2789
7f7cfcb6
PV		 2790 /* Inform sockets conn is gone before we delete it */
2791 hci_disconn_cfm(conn, HCI_ERROR_UNSPECIFIED);
2792
182ee45d 2793 goto done;
b8d29052
JH		 2794 }
2795
182ee45d
LAD		 2796 mgmt_conn = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
2797
2798 if (conn->type == ACL_LINK) {
629f66aa 2799 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
182ee45d
LAD		 2800 hci_remove_link_key(hdev, &conn->dst);
2801 }
2802
2803 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
2804 if (params) {
2805 switch (params->auto_connect) {
2806 case HCI_AUTO_CONN_LINK_LOSS:
2807 if (cp->reason != HCI_ERROR_CONNECTION_TIMEOUT)
2808 break;
2809 fallthrough;
2810
2811 case HCI_AUTO_CONN_DIRECT:
2812 case HCI_AUTO_CONN_ALWAYS:
195ef75e
PV		 2813 hci_pend_le_list_del_init(params);
2814 hci_pend_le_list_add(params, &hdev->pend_le_conns);
182ee45d
LAD		 2815 break;
2816
2817 default:
2818 break;
2819 }
2820 }
2821
2822 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
2823 cp->reason, mgmt_conn);
2824
2825 hci_disconn_cfm(conn, cp->reason);
2826
2827done:
2828 /* If the disconnection failed for any reason, the upper layer
2829 * does not retry to disconnect in current implementation.
2830 * Hence, we need to do some basic cleanup here and re-enable
2831 * advertising if necessary.
2832 */
2833 hci_conn_del(conn);
2834unlock:
88c3df13
JH		 2835 hci_dev_unlock(hdev);
2836}
2837
d850bf08 2838static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved)
4ec4d63b
LAD		 2839{
2840 /* When using controller based address resolution, then the new
2841 * address types 0x02 and 0x03 are used. These types need to be
2842 * converted back into either public address or random address type
2843 */
2844 switch (type) {
2845 case ADDR_LE_DEV_PUBLIC_RESOLVED:
d850bf08
LAD		 2846 if (resolved)
2847 *resolved = true;
4ec4d63b
LAD		 2848 return ADDR_LE_DEV_PUBLIC;
2849 case ADDR_LE_DEV_RANDOM_RESOLVED:
d850bf08
LAD		 2850 if (resolved)
2851 *resolved = true;
4ec4d63b
LAD		 2852 return ADDR_LE_DEV_RANDOM;
2853 }
2854
d850bf08
LAD		 2855 if (resolved)
2856 *resolved = false;
4ec4d63b
LAD		 2857 return type;
2858}
2859
d12fb056
JK		 2860static void cs_le_create_conn(struct hci_dev *hdev, bdaddr_t *peer_addr,
2861 u8 peer_addr_type, u8 own_address_type,
2862 u8 filter_policy)
cb1d68f7 2863{
cb1d68f7
JH		 2864 struct hci_conn *conn;
2865
d12fb056
JK		 2866 conn = hci_conn_hash_lookup_le(hdev, peer_addr,
2867 peer_addr_type);
cb1d68f7 2868 if (!conn)
d12fb056 2869 return;
cb1d68f7 2870
d850bf08 2871 own_address_type = ev_bdaddr_type(hdev, own_address_type, NULL);
b31bc00b 2872
cb1d68f7
JH		 2873 /* Store the initiator and responder address information which
2874 * is needed for SMP. These values will not change during the
2875 * lifetime of the connection.
2876 */
d12fb056
JK		 2877 conn->init_addr_type = own_address_type;
2878 if (own_address_type == ADDR_LE_DEV_RANDOM)
cb1d68f7
JH		 2879 bacpy(&conn->init_addr, &hdev->random_addr);
2880 else
2881 bacpy(&conn->init_addr, &hdev->bdaddr);
2882
d12fb056
JK		 2883 conn->resp_addr_type = peer_addr_type;
2884 bacpy(&conn->resp_addr, peer_addr);
d12fb056
JK		 2885}
2886
2887static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status)
2888{
2889 struct hci_cp_le_create_conn *cp;
2890
147306cc 2891 bt_dev_dbg(hdev, "status 0x%2.2x", status);
d12fb056
JK		 2892
2893 /* All connection failure handling is taken care of by the
9b3628d7 2894 * hci_conn_failed function which is triggered by the HCI
d12fb056
JK		 2895 * request completion callbacks used for connecting.
2896 */
2897 if (status)
2898 return;
2899
2900 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CONN);
2901 if (!cp)
2902 return;
2903
2904 hci_dev_lock(hdev);
2905
2906 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2907 cp->own_address_type, cp->filter_policy);
9489eca4 2908
cb1d68f7
JH		 2909 hci_dev_unlock(hdev);
2910}
2911
4d94f95d
JK		 2912static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status)
2913{
2914 struct hci_cp_le_ext_create_conn *cp;
2915
147306cc 2916 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4d94f95d
JK		 2917
2918 /* All connection failure handling is taken care of by the
9b3628d7 2919 * hci_conn_failed function which is triggered by the HCI
4d94f95d
JK		 2920 * request completion callbacks used for connecting.
2921 */
2922 if (status)
2923 return;
2924
2925 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_EXT_CREATE_CONN);
2926 if (!cp)
2927 return;
2928
2929 hci_dev_lock(hdev);
2930
2931 cs_le_create_conn(hdev, &cp->peer_addr, cp->peer_addr_type,
2932 cp->own_addr_type, cp->filter_policy);
2933
2934 hci_dev_unlock(hdev);
2935}
2936
0fe29fd1
MH		 2937static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status)
2938{
2939 struct hci_cp_le_read_remote_features *cp;
2940 struct hci_conn *conn;
2941
147306cc 2942 bt_dev_dbg(hdev, "status 0x%2.2x", status);
0fe29fd1
MH		 2943
2944 if (!status)
2945 return;
2946
2947 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_READ_REMOTE_FEATURES);
2948 if (!cp)
2949 return;
2950
2951 hci_dev_lock(hdev);
2952
2953 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2954 if (conn) {
2955 if (conn->state == BT_CONFIG) {
2956 hci_connect_cfm(conn, status);
2957 hci_conn_drop(conn);
2958 }
2959 }
2960
2961 hci_dev_unlock(hdev);
2962}
2963
81d0c8ad
JH		 2964static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status)
2965{
2966 struct hci_cp_le_start_enc *cp;
2967 struct hci_conn *conn;
2968
147306cc 2969 bt_dev_dbg(hdev, "status 0x%2.2x", status);
81d0c8ad
JH		 2970
2971 if (!status)
2972 return;
2973
2974 hci_dev_lock(hdev);
2975
2976 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_START_ENC);
2977 if (!cp)
2978 goto unlock;
2979
2980 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
2981 if (!conn)
2982 goto unlock;
2983
2984 if (conn->state != BT_CONNECTED)
2985 goto unlock;
2986
2987 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
2988 hci_conn_drop(conn);
2989
2990unlock:
2991 hci_dev_unlock(hdev);
2992}
2993
50fc85f1
KP		 2994static void hci_cs_switch_role(struct hci_dev *hdev, u8 status)
2995{
2996 struct hci_cp_switch_role *cp;
2997 struct hci_conn *conn;
2998
2999 BT_DBG("%s status 0x%2.2x", hdev->name, status);
3000
3001 if (!status)
3002 return;
3003
3004 cp = hci_sent_cmd_data(hdev, HCI_OP_SWITCH_ROLE);
3005 if (!cp)
3006 return;
3007
3008 hci_dev_lock(hdev);
3009
3010 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
3011 if (conn)
3012 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
3013
3014 hci_dev_unlock(hdev);
3015}
3016
3e54c589
LAD		 3017static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data,
3018 struct sk_buff *skb)
1da177e4 3019{
3e54c589 3020 struct hci_ev_status *ev = data;
30dc78e1
JH		 3021 struct discovery_state *discov = &hdev->discovery;
3022 struct inquiry_entry *e;
1da177e4 3023
3e54c589 3024 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4 3025
a9de9248 3026 hci_conn_check_pending(hdev);
89352e7d
AG		 3027
3028 if (!test_and_clear_bit(HCI_INQUIRY, &hdev->flags))
3029 return;
3030
4e857c58 3031 smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */
3e13fa1e
AG		 3032 wake_up_bit(&hdev->flags, HCI_INQUIRY);
3033
d7a5a11d 3034 if (!hci_dev_test_flag(hdev, HCI_MGMT))
30dc78e1
JH		 3035 return;
3036
56e5cb86 3037 hci_dev_lock(hdev);
30dc78e1 3038
343f935b 3039 if (discov->state != DISCOVERY_FINDING)
30dc78e1
JH		 3040 goto unlock;
3041
3042 if (list_empty(&discov->resolve)) {
07d2334a
JP		 3043 /* When BR/EDR inquiry is active and no LE scanning is in
3044 * progress, then change discovery state to indicate completion.
3045 *
3046 * When running LE scanning and BR/EDR inquiry simultaneously
3047 * and the LE scan already finished, then change the discovery
3048 * state to indicate completion.
3049 */
3050 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3051 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3052 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 3053 goto unlock;
3054 }
3055
3056 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, NAME_NEEDED);
3057 if (e && hci_resolve_name(hdev, e) == 0) {
3058 e->name_state = NAME_PENDING;
3059 hci_discovery_set_state(hdev, DISCOVERY_RESOLVING);
dbf6811a 3060 discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION;
30dc78e1 3061 } else {
07d2334a
JP		 3062 /* When BR/EDR inquiry is active and no LE scanning is in
3063 * progress, then change discovery state to indicate completion.
3064 *
3065 * When running LE scanning and BR/EDR inquiry simultaneously
3066 * and the LE scan already finished, then change the discovery
3067 * state to indicate completion.
3068 */
3069 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN) ||
3070 !test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
3071 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
30dc78e1
JH		 3072 }
3073
3074unlock:
56e5cb86 3075 hci_dev_unlock(hdev);
1da177e4
LT		 3076}
3077
3e54c589
LAD		 3078static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata,
3079 struct sk_buff *skb)
1da177e4 3080{
3e54c589 3081 struct hci_ev_inquiry_result *ev = edata;
45bb4bf0 3082 struct inquiry_data data;
27d9eb4b 3083 int i;
1da177e4 3084
27d9eb4b
LAD		 3085 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT,
3086 flex_array_size(ev, info, ev->num)))
3087 return;
3088
3e54c589 3089 bt_dev_dbg(hdev, "num %d", ev->num);
1da177e4 3090
27d9eb4b 3091 if (!ev->num)
45bb4bf0
MH		 3092 return;
3093
d7a5a11d 3094 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 3095 return;
3096
1da177e4 3097 hci_dev_lock(hdev);
45bb4bf0 3098
27d9eb4b
LAD		 3099 for (i = 0; i < ev->num; i++) {
3100 struct inquiry_info *info = &ev->info[i];
af58925c 3101 u32 flags;
3175405b 3102
1da177e4
LT		 3103 bacpy(&data.bdaddr, &info->bdaddr);
3104 data.pscan_rep_mode = info->pscan_rep_mode;
3105 data.pscan_period_mode = info->pscan_period_mode;
3106 data.pscan_mode = info->pscan_mode;
3107 memcpy(data.dev_class, info->dev_class, 3);
3108 data.clock_offset = info->clock_offset;
efb2513f 3109 data.rssi = HCI_RSSI_INVALID;
41a96212 3110 data.ssp_mode = 0x00;
3175405b 3111
af58925c
MH		 3112 flags = hci_inquiry_cache_update(hdev, &data, false);
3113
48264f06 3114 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
efb2513f 3115 info->dev_class, HCI_RSSI_INVALID,
b338d917 3116 flags, NULL, 0, NULL, 0, 0);
1da177e4 3117 }
45bb4bf0 3118
1da177e4
LT		 3119 hci_dev_unlock(hdev);
3120}
3121
3e54c589
LAD		 3122static void hci_conn_complete_evt(struct hci_dev *hdev, void *data,
3123 struct sk_buff *skb)
1da177e4 3124{
3e54c589 3125 struct hci_ev_conn_complete *ev = data;
a9de9248 3126 struct hci_conn *conn;
c86cc5a3 3127 u8 status = ev->status;
1da177e4 3128
c86cc5a3 3129 bt_dev_dbg(hdev, "status 0x%2.2x", status);
1da177e4
LT		 3130
3131 hci_dev_lock(hdev);
3132
3133 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9499237a 3134 if (!conn) {
aef2aa4f
LAD		 3135 /* In case of error status and there is no connection pending
3136 * just unlock as there is nothing to cleanup.
3137 */
3138 if (ev->status)
3139 goto unlock;
3140
a46b7ed4
SS		 3141 /* Connection may not exist if auto-connected. Check the bredr
3142 * allowlist to see if this device is allowed to auto connect.
3143 * If link is an ACL type, create a connection class
4f40afc6 3144 * automatically.
a46b7ed4
SS		 3145 *
3146 * Auto-connect will only occur if the event filter is
3147 * programmed with a given address. Right now, event filter is
3148 * only used during suspend.
4f40afc6 3149 */
a46b7ed4 3150 if (ev->link_type == ACL_LINK &&
3d4f9c00 3151 hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
a46b7ed4
SS		 3152 &ev->bdaddr,
3153 BDADDR_BREDR)) {
181a42ed
ZX		 3154 conn = hci_conn_add_unset(hdev, ev->link_type,
3155 &ev->bdaddr, HCI_ROLE_SLAVE);
4f40afc6
APS		 3156 if (!conn) {
3157 bt_dev_err(hdev, "no memory for new conn");
3158 goto unlock;
3159 }
2d186fcd
APS		 3160 } else {
3161 if (ev->link_type != SCO_LINK)
3162 goto unlock;
9499237a 3163
2d186fcd
APS		 3164 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK,
3165 &ev->bdaddr);
3166 if (!conn)
3167 goto unlock;
9499237a 3168
2d186fcd
APS		 3169 conn->type = SCO_LINK;
3170 }
9499237a 3171 }
1da177e4 3172
d5ebaa7c
SH		 3173 /* The HCI_Connection_Complete event is only sent once per connection.
3174 * Processing it more than once per connection can corrupt kernel memory.
3175 *
3176 * As the connection handle is set here for the first time, it indicates
3177 * whether the connection is already set up.
3178 */
9f78191c 3179 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
d5ebaa7c
SH		 3180 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
3181 goto unlock;
3182 }
3183
c86cc5a3 3184 if (!status) {
16e3b642
LAD		 3185 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
3186 if (status)
c86cc5a3 3187 goto done;
769be974
MH		 3188
3189 if (conn->type == ACL_LINK) {
3190 conn->state = BT_CONFIG;
3191 hci_conn_hold(conn);
a9ea3ed9
SJ		 3192
3193 if (!conn->out && !hci_conn_ssp_enabled(conn) &&
3194 !hci_find_link_key(hdev, &ev->bdaddr))
3195 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
3196 else
3197 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
769be974
MH		 3198 } else
3199 conn->state = BT_CONNECTED;
1da177e4 3200
23b9ceb7 3201 hci_debugfs_create_conn(conn);
7d0db0a3
MH		 3202 hci_conn_add_sysfs(conn);
3203
1da177e4 3204 if (test_bit(HCI_AUTH, &hdev->flags))
4dae2798 3205 set_bit(HCI_CONN_AUTH, &conn->flags);
1da177e4
LT		 3206
3207 if (test_bit(HCI_ENCRYPT, &hdev->flags))
4dae2798 3208 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
1da177e4 3209
04837f64
MH		 3210 /* Get remote features */
3211 if (conn->type == ACL_LINK) {
3212 struct hci_cp_read_remote_features cp;
3213 cp.handle = ev->handle;
769be974 3214 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES,
04124681 3215 sizeof(cp), &cp);
22f433dc 3216
bb876725 3217 hci_update_scan(hdev);
04837f64
MH		 3218 }
3219
1da177e4 3220 /* Set packet type for incoming connection */
d095c1eb 3221 if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) {
1da177e4
LT		 3222 struct hci_cp_change_conn_ptype cp;
3223 cp.handle = ev->handle;
a8746417 3224 cp.pkt_type = cpu_to_le16(conn->pkt_type);
04124681
GP		 3225 hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, sizeof(cp),
3226 &cp);
1da177e4 3227 }
17d5c04c 3228 }
1da177e4 3229
e73439d8
MH		 3230 if (conn->type == ACL_LINK)
3231 hci_sco_setup(conn, ev->status);
1da177e4 3232
c86cc5a3
LAD		 3233done:
3234 if (status) {
9b3628d7 3235 hci_conn_failed(conn, status);
1f8330ea
SN		 3236 } else if (ev->link_type == SCO_LINK) {
3237 switch (conn->setting & SCO_AIRMODE_MASK) {
3238 case SCO_AIRMODE_CVSD:
3239 if (hdev->notify)
3240 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
3241 break;
3242 }
3243
c86cc5a3 3244 hci_connect_cfm(conn, status);
1f8330ea 3245 }
1da177e4 3246
a9de9248 3247unlock:
1da177e4 3248 hci_dev_unlock(hdev);
1da177e4 3249
a9de9248 3250 hci_conn_check_pending(hdev);
1da177e4
LT		 3251}
3252
70c46425
JH		 3253static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr)
3254{
3255 struct hci_cp_reject_conn_req cp;
3256
3257 bacpy(&cp.bdaddr, bdaddr);
3258 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
3259 hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, sizeof(cp), &cp);
3260}
3261
3e54c589
LAD		 3262static void hci_conn_request_evt(struct hci_dev *hdev, void *data,
3263 struct sk_buff *skb)
1da177e4 3264{
3e54c589 3265 struct hci_ev_conn_request *ev = data;
a9de9248 3266 int mask = hdev->link_mode;
70c46425
JH		 3267 struct inquiry_entry *ie;
3268 struct hci_conn *conn;
20714bfe 3269 __u8 flags = 0;
1da177e4 3270
3e54c589 3271 bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x", &ev->bdaddr, ev->link_type);
1da177e4 3272
1ffc6f8c
LCY		 3273 /* Reject incoming connection from device with same BD ADDR against
3274 * CVE-2020-26555
3275 */
9d1a3c74 3276 if (hdev && !bacmp(&hdev->bdaddr, &ev->bdaddr)) {
1ffc6f8c
LCY		 3277 bt_dev_dbg(hdev, "Reject connection with same BD_ADDR %pMR\n",
3278 &ev->bdaddr);
3279 hci_reject_conn(hdev, &ev->bdaddr);
3280 return;
3281 }
3282
20714bfe
FD		 3283 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type,
3284 &flags);
1da177e4 3285
70c46425
JH		 3286 if (!(mask & HCI_LM_ACCEPT)) {
3287 hci_reject_conn(hdev, &ev->bdaddr);
3288 return;
3289 }
3290
fb048cae
ND		 3291 hci_dev_lock(hdev);
3292
3d4f9c00 3293 if (hci_bdaddr_list_lookup(&hdev->reject_list, &ev->bdaddr,
46c4c941
JH		 3294 BDADDR_BREDR)) {
3295 hci_reject_conn(hdev, &ev->bdaddr);
fb048cae 3296 goto unlock;
46c4c941
JH		 3297 }
3298
3d4f9c00 3299 /* Require HCI_CONNECTABLE or an accept list entry to accept the
6a8fc95c
JH		 3300 * connection. These features are only touched through mgmt so
3301 * only do the checks if HCI_MGMT is set.
3302 */
d7a5a11d
MH		 3303 if (hci_dev_test_flag(hdev, HCI_MGMT) &&
3304 !hci_dev_test_flag(hdev, HCI_CONNECTABLE) &&
3d4f9c00 3305 !hci_bdaddr_list_lookup_with_flags(&hdev->accept_list, &ev->bdaddr,
8baaa403
APS		 3306 BDADDR_BREDR)) {
3307 hci_reject_conn(hdev, &ev->bdaddr);
fb048cae 3308 goto unlock;
70c46425 3309 }
1da177e4 3310
70c46425 3311 /* Connection accepted */
b6a0dc82 3312
70c46425
JH		 3313 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
3314 if (ie)
3315 memcpy(ie->data.dev_class, ev->dev_class, 3);
c7bdd502 3316
70c46425
JH		 3317 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type,
3318 &ev->bdaddr);
3319 if (!conn) {
181a42ed
ZX		 3320 conn = hci_conn_add_unset(hdev, ev->link_type, &ev->bdaddr,
3321 HCI_ROLE_SLAVE);
a9de9248 3322 if (!conn) {
2064ee33 3323 bt_dev_err(hdev, "no memory for new connection");
fb048cae 3324 goto unlock;
1da177e4 3325 }
70c46425 3326 }
b6a0dc82 3327
70c46425 3328 memcpy(conn->dev_class, ev->dev_class, 3);
b6a0dc82 3329
70c46425 3330 hci_dev_unlock(hdev);
1da177e4 3331
70c46425
JH		 3332 if (ev->link_type == ACL_LINK ||
3333 (!(flags & HCI_PROTO_DEFER) && !lmp_esco_capable(hdev))) {
3334 struct hci_cp_accept_conn_req cp;
3335 conn->state = BT_CONNECT;
1da177e4 3336
70c46425 3337 bacpy(&cp.bdaddr, &ev->bdaddr);
b6a0dc82 3338
70c46425 3339 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
74be523c 3340 cp.role = 0x00; /* Become central */
70c46425 3341 else
74be523c 3342 cp.role = 0x01; /* Remain peripheral */
b6a0dc82 3343
70c46425
JH		 3344 hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, sizeof(cp), &cp);
3345 } else if (!(flags & HCI_PROTO_DEFER)) {
3346 struct hci_cp_accept_sync_conn_req cp;
3347 conn->state = BT_CONNECT;
b6a0dc82 3348
70c46425
JH		 3349 bacpy(&cp.bdaddr, &ev->bdaddr);
3350 cp.pkt_type = cpu_to_le16(conn->pkt_type);
b6a0dc82 3351
70c46425
JH		 3352 cp.tx_bandwidth = cpu_to_le32(0x00001f40);
3353 cp.rx_bandwidth = cpu_to_le32(0x00001f40);
3354 cp.max_latency = cpu_to_le16(0xffff);
3355 cp.content_format = cpu_to_le16(hdev->voice_setting);
3356 cp.retrans_effort = 0xff;
1da177e4 3357
70c46425
JH		 3358 hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, sizeof(cp),
3359 &cp);
a9de9248 3360 } else {
70c46425 3361 conn->state = BT_CONNECT2;
539c496d 3362 hci_connect_cfm(conn, 0);
1da177e4 3363 }
fb048cae
ND		 3364
3365 return;
3366unlock:
3367 hci_dev_unlock(hdev);
1da177e4
LT		 3368}
3369
f0d6a0ea
MA		 3370static u8 hci_to_mgmt_reason(u8 err)
3371{
3372 switch (err) {
3373 case HCI_ERROR_CONNECTION_TIMEOUT:
3374 return MGMT_DEV_DISCONN_TIMEOUT;
3375 case HCI_ERROR_REMOTE_USER_TERM:
3376 case HCI_ERROR_REMOTE_LOW_RESOURCES:
3377 case HCI_ERROR_REMOTE_POWER_OFF:
3378 return MGMT_DEV_DISCONN_REMOTE;
3379 case HCI_ERROR_LOCAL_HOST_TERM:
3380 return MGMT_DEV_DISCONN_LOCAL_HOST;
3381 default:
3382 return MGMT_DEV_DISCONN_UNKNOWN;
3383 }
3384}
3385
3e54c589
LAD		 3386static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data,
3387 struct sk_buff *skb)
04837f64 3388{
3e54c589 3389 struct hci_ev_disconn_complete *ev = data;
160b9251 3390 u8 reason;
9fcb18ef 3391 struct hci_conn_params *params;
04837f64 3392 struct hci_conn *conn;
12d4a3b2 3393 bool mgmt_connected;
04837f64 3394
3e54c589 3395 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
04837f64
MH		 3396
3397 hci_dev_lock(hdev);
3398
3399 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
f7520543
JH		 3400 if (!conn)
3401 goto unlock;
7d0db0a3 3402
abf54a50
AG		 3403 if (ev->status) {
3404 mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
3405 conn->dst_type, ev->status);
3406 goto unlock;
37d9ef76 3407 }
f7520543 3408
3846220b
AG		 3409 conn->state = BT_CLOSED;
3410
12d4a3b2 3411 mgmt_connected = test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags);
160b9251
SJ		 3412
3413 if (test_bit(HCI_CONN_AUTH_FAILURE, &conn->flags))
3414 reason = MGMT_DEV_DISCONN_AUTH_FAILURE;
3415 else
3416 reason = hci_to_mgmt_reason(ev->reason);
3417
12d4a3b2
JH		 3418 mgmt_device_disconnected(hdev, &conn->dst, conn->type, conn->dst_type,
3419 reason, mgmt_connected);
abf54a50 3420
22f433dc 3421 if (conn->type == ACL_LINK) {
629f66aa 3422 if (test_and_clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags))
22f433dc
JH		 3423 hci_remove_link_key(hdev, &conn->dst);
3424
bb876725 3425 hci_update_scan(hdev);
22f433dc 3426 }
2210246c 3427
9fcb18ef
AG		 3428 params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type);
3429 if (params) {
3430 switch (params->auto_connect) {
3431 case HCI_AUTO_CONN_LINK_LOSS:
3432 if (ev->reason != HCI_ERROR_CONNECTION_TIMEOUT)
3433 break;
19186c7b 3434 fallthrough;
9fcb18ef 3435
4b9e7e75 3436 case HCI_AUTO_CONN_DIRECT:
9fcb18ef 3437 case HCI_AUTO_CONN_ALWAYS:
195ef75e
PV		 3438 hci_pend_le_list_del_init(params);
3439 hci_pend_le_list_add(params, &hdev->pend_le_conns);
5bee2fd6 3440 hci_update_passive_scan(hdev);
9fcb18ef
AG		 3441 break;
3442
3443 default:
3444 break;
3445 }
3446 }
3447
3a6d576b 3448 hci_disconn_cfm(conn, ev->reason);
3846220b
AG		 3449
3450 /* Re-enable advertising if necessary, since it might
3451 * have been disabled by the connection. From the
3452 * HCI_LE_Set_Advertise_Enable command description in
3453 * the core specification (v4.0):
3454 * "The Controller shall continue advertising until the Host
3455 * issues an LE_Set_Advertise_Enable command with
3456 * Advertising_Enable set to 0x00 (Advertising is disabled)
3457 * or until a connection is created or until the Advertising
3458 * is timed out due to Directed Advertising."
3459 */
1eeaa1ae 3460 if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) {
7087c4f6 3461 hdev->cur_adv_instance = conn->adv_instance;
abfeea47 3462 hci_enable_advertising(hdev);
7087c4f6
LAD		 3463 }
3464
3465 hci_conn_del(conn);
f7520543
JH		 3466
3467unlock:
04837f64
MH		 3468 hci_dev_unlock(hdev);
3469}
3470
3e54c589
LAD		 3471static void hci_auth_complete_evt(struct hci_dev *hdev, void *data,
3472 struct sk_buff *skb)
1da177e4 3473{
3e54c589 3474 struct hci_ev_auth_complete *ev = data;
04837f64 3475 struct hci_conn *conn;
1da177e4 3476
3e54c589 3477 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4
LT		 3478
3479 hci_dev_lock(hdev);
3480
04837f64 3481 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
d7556e20
WR		 3482 if (!conn)
3483 goto unlock;
3484
3485 if (!ev->status) {
160b9251
SJ		 3486 clear_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3487
aa64a8b5 3488 if (!hci_conn_ssp_enabled(conn) &&
807deac2 3489 test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) {
2064ee33 3490 bt_dev_info(hdev, "re-auth of legacy device is not possible.");
2a611692 3491 } else {
4dae2798 3492 set_bit(HCI_CONN_AUTH, &conn->flags);
d7556e20 3493 conn->sec_level = conn->pending_sec_level;
2a611692 3494 }
d7556e20 3495 } else {
160b9251
SJ		 3496 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3497 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3498
e1e930f5 3499 mgmt_auth_failed(conn, ev->status);
d7556e20 3500 }
1da177e4 3501
51a8efd7
JH		 3502 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
3503 clear_bit(HCI_CONN_REAUTH_PEND, &conn->flags);
1da177e4 3504
d7556e20 3505 if (conn->state == BT_CONFIG) {
aa64a8b5 3506 if (!ev->status && hci_conn_ssp_enabled(conn)) {
d7556e20
WR		 3507 struct hci_cp_set_conn_encrypt cp;
3508 cp.handle = ev->handle;
3509 cp.encrypt = 0x01;
3510 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 3511 &cp);
052b30b0 3512 } else {
d7556e20 3513 conn->state = BT_CONNECTED;
539c496d 3514 hci_connect_cfm(conn, ev->status);
76a68ba0 3515 hci_conn_drop(conn);
052b30b0 3516 }
d7556e20
WR		 3517 } else {
3518 hci_auth_cfm(conn, ev->status);
052b30b0 3519
d7556e20
WR		 3520 hci_conn_hold(conn);
3521 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 3522 hci_conn_drop(conn);
d7556e20
WR		 3523 }
3524
51a8efd7 3525 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) {
d7556e20
WR		 3526 if (!ev->status) {
3527 struct hci_cp_set_conn_encrypt cp;
3528 cp.handle = ev->handle;
3529 cp.encrypt = 0x01;
3530 hci_send_cmd(hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp),
807deac2 3531 &cp);
d7556e20 3532 } else {
51a8efd7 3533 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
3ca44c16 3534 hci_encrypt_cfm(conn, ev->status);
1da177e4
LT		 3535 }
3536 }
3537
d7556e20 3538unlock:
1da177e4
LT		 3539 hci_dev_unlock(hdev);
3540}
3541
3e54c589
LAD		 3542static void hci_remote_name_evt(struct hci_dev *hdev, void *data,
3543 struct sk_buff *skb)
1da177e4 3544{
3e54c589 3545 struct hci_ev_remote_name *ev = data;
127178d2
JH		 3546 struct hci_conn *conn;
3547
3e54c589 3548 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4 3549
a9de9248 3550 hci_conn_check_pending(hdev);
127178d2
JH		 3551
3552 hci_dev_lock(hdev);
3553
b644ba33 3554 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
30dc78e1 3555
d7a5a11d 3556 if (!hci_dev_test_flag(hdev, HCI_MGMT))
b644ba33 3557 goto check_auth;
a88a9652 3558
b644ba33
JH		 3559 if (ev->status == 0)
3560 hci_check_pending_name(hdev, conn, &ev->bdaddr, ev->name,
04124681 3561 strnlen(ev->name, HCI_MAX_NAME_LENGTH));
b644ba33
JH		 3562 else
3563 hci_check_pending_name(hdev, conn, &ev->bdaddr, NULL, 0);
3564
3565check_auth:
79c6c70c
JH		 3566 if (!conn)
3567 goto unlock;
3568
3569 if (!hci_outgoing_auth_needed(hdev, conn))
3570 goto unlock;
3571
51a8efd7 3572 if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
127178d2 3573 struct hci_cp_auth_requested cp;
977f8fce
JH		 3574
3575 set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags);
3576
127178d2
JH		 3577 cp.handle = __cpu_to_le16(conn->handle);
3578 hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
3579 }
3580
79c6c70c 3581unlock:
127178d2 3582 hci_dev_unlock(hdev);
a9de9248
MH		 3583}
3584
3e54c589
LAD		 3585static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data,
3586 struct sk_buff *skb)
a9de9248 3587{
3e54c589 3588 struct hci_ev_encrypt_change *ev = data;
a9de9248
MH		 3589 struct hci_conn *conn;
3590
3e54c589 3591 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4
LT		 3592
3593 hci_dev_lock(hdev);
3594
04837f64 3595 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
dc8357cc
MH		 3596 if (!conn)
3597 goto unlock;
1da177e4 3598
dc8357cc
MH		 3599 if (!ev->status) {
3600 if (ev->encrypt) {
3601 /* Encryption implies authentication */
4dae2798
JH		 3602 set_bit(HCI_CONN_AUTH, &conn->flags);
3603 set_bit(HCI_CONN_ENCRYPT, &conn->flags);
dc8357cc 3604 conn->sec_level = conn->pending_sec_level;
abf76bad 3605
914a6ffe
MH		 3606 /* P-256 authentication key implies FIPS */
3607 if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256)
4dae2798 3608 set_bit(HCI_CONN_FIPS, &conn->flags);
914a6ffe 3609
abf76bad
MH		 3610 if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
3611 conn->type == LE_LINK)
3612 set_bit(HCI_CONN_AES_CCM, &conn->flags);
3613 } else {
4dae2798 3614 clear_bit(HCI_CONN_ENCRYPT, &conn->flags);
abf76bad
MH		 3615 clear_bit(HCI_CONN_AES_CCM, &conn->flags);
3616 }
dc8357cc 3617 }
a7d7723a 3618
7ed3fa20
JH		 3619 /* We should disregard the current RPA and generate a new one
3620 * whenever the encryption procedure fails.
3621 */
a73c046a 3622 if (ev->status && conn->type == LE_LINK) {
a1536da2 3623 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
a73c046a
JK		 3624 hci_adv_instances_set_rpa_expired(hdev, true);
3625 }
7ed3fa20 3626
dc8357cc 3627 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
f8558555 3628
8746f135
LAD		 3629 /* Check link security requirements are met */
3630 if (!hci_conn_check_link_mode(conn))
3631 ev->status = HCI_ERROR_AUTH_FAILURE;
3632
dc8357cc 3633 if (ev->status && conn->state == BT_CONNECTED) {
160b9251
SJ		 3634 if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING)
3635 set_bit(HCI_CONN_AUTH_FAILURE, &conn->flags);
3636
8746f135
LAD		 3637 /* Notify upper layers so they can cleanup before
3638 * disconnecting.
3639 */
3640 hci_encrypt_cfm(conn, ev->status);
dc8357cc
MH		 3641 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
3642 hci_conn_drop(conn);
3643 goto unlock;
1da177e4
LT		 3644 }
3645
821f3766
JH		 3646 /* Try reading the encryption key size for encrypted ACL links */
3647 if (!ev->status && ev->encrypt && conn->type == ACL_LINK) {
3648 struct hci_cp_read_enc_key_size cp;
821f3766
JH		 3649
3650 /* Only send HCI_Read_Encryption_Key_Size if the
3651 * controller really supports it. If it doesn't, assume
3652 * the default size (16).
3653 */
3654 if (!(hdev->commands[20] & 0x10)) {
3655 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3656 goto notify;
3657 }
3658
821f3766 3659 cp.handle = cpu_to_le16(conn->handle);
278d933e
BG		 3660 if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE,
3661 sizeof(cp), &cp)) {
2064ee33 3662 bt_dev_err(hdev, "sending read key size failed");
821f3766
JH		 3663 conn->enc_key_size = HCI_LINK_KEY_SIZE;
3664 goto notify;
3665 }
3666
3667 goto unlock;
3668 }
3669
302975cb
SRK		 3670 /* Set the default Authenticated Payload Timeout after
3671 * an LE Link is established. As per Core Spec v5.0, Vol 2, Part B
3672 * Section 3.3, the HCI command WRITE_AUTH_PAYLOAD_TIMEOUT should be
3673 * sent when the link is active and Encryption is enabled, the conn
3674 * type can be either LE or ACL and controller must support LMP Ping.
3675 * Ensure for AES-CCM encryption as well.
3676 */
3677 if (test_bit(HCI_CONN_ENCRYPT, &conn->flags) &&
3678 test_bit(HCI_CONN_AES_CCM, &conn->flags) &&
3679 ((conn->type == ACL_LINK && lmp_ping_capable(hdev)) ||
3680 (conn->type == LE_LINK && (hdev->le_features[0] & HCI_LE_PING)))) {
3681 struct hci_cp_write_auth_payload_to cp;
3682
3683 cp.handle = cpu_to_le16(conn->handle);
3684 cp.timeout = cpu_to_le16(hdev->auth_payload_timeout);
7aca0ac4
LAD		 3685 if (hci_send_cmd(conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO,
3686 sizeof(cp), &cp)) {
3687 bt_dev_err(hdev, "write auth payload timeout failed");
3688 goto notify;
3689 }
3690
3691 goto unlock;
302975cb
SRK		 3692 }
3693
821f3766 3694notify:
3ca44c16 3695 hci_encrypt_cfm(conn, ev->status);
dc8357cc 3696
a7d7723a 3697unlock:
1da177e4
LT		 3698 hci_dev_unlock(hdev);
3699}
3700
3e54c589 3701static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data,
6039aa73 3702 struct sk_buff *skb)
1da177e4 3703{
3e54c589 3704 struct hci_ev_change_link_key_complete *ev = data;
04837f64 3705 struct hci_conn *conn;
1da177e4 3706
3e54c589 3707 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4
LT		 3708
3709 hci_dev_lock(hdev);
3710
04837f64 3711 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 3712 if (conn) {
3713 if (!ev->status)
4dae2798 3714 set_bit(HCI_CONN_SECURE, &conn->flags);
1da177e4 3715
51a8efd7 3716 clear_bit(HCI_CONN_AUTH_PEND, &conn->flags);
1da177e4
LT		 3717
3718 hci_key_change_cfm(conn, ev->status);
3719 }
3720
3721 hci_dev_unlock(hdev);
3722}
3723
3e54c589 3724static void hci_remote_features_evt(struct hci_dev *hdev, void *data,
6039aa73 3725 struct sk_buff *skb)
1da177e4 3726{
3e54c589 3727 struct hci_ev_remote_features *ev = data;
a9de9248
MH		 3728 struct hci_conn *conn;
3729
3e54c589 3730 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
a9de9248 3731
a9de9248
MH		 3732 hci_dev_lock(hdev);
3733
3734 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 3735 if (!conn)
3736 goto unlock;
769be974 3737
ccd556fe 3738 if (!ev->status)
cad718ed 3739 memcpy(conn->features[0], ev->features, 8);
ccd556fe
JH		 3740
3741 if (conn->state != BT_CONFIG)
3742 goto unlock;
3743
ac363cf9
SJ		 3744 if (!ev->status && lmp_ext_feat_capable(hdev) &&
3745 lmp_ext_feat_capable(conn)) {
ccd556fe
JH		 3746 struct hci_cp_read_remote_ext_features cp;
3747 cp.handle = ev->handle;
3748 cp.page = 0x01;
3749 hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES,
807deac2 3750 sizeof(cp), &cp);
392599b9
JH		 3751 goto unlock;
3752 }
3753
671267bf 3754 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 3755 struct hci_cp_remote_name_req cp;
3756 memset(&cp, 0, sizeof(cp));
3757 bacpy(&cp.bdaddr, &conn->dst);
3758 cp.pscan_rep_mode = 0x02;
3759 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 3760 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1c6ed31b 3761 mgmt_device_connected(hdev, conn, NULL, 0);
392599b9 3762
127178d2 3763 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 3764 conn->state = BT_CONNECTED;
539c496d 3765 hci_connect_cfm(conn, ev->status);
76a68ba0 3766 hci_conn_drop(conn);
769be974 3767 }
a9de9248 3768
ccd556fe 3769unlock:
a9de9248 3770 hci_dev_unlock(hdev);
1da177e4
LT		 3771}
3772
ecb71f25 3773static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd)
de75cd0d 3774{
ecb71f25 3775 cancel_delayed_work(&hdev->cmd_timer);
de75cd0d 3776
deee93d1 3777 rcu_read_lock();
de75cd0d
MM		 3778 if (!test_bit(HCI_RESET, &hdev->flags)) {
3779 if (ncmd) {
3780 cancel_delayed_work(&hdev->ncmd_timer);
3781 atomic_set(&hdev->cmd_cnt, 1);
3782 } else {
877afada 3783 if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE))
deee93d1
TH		 3784 queue_delayed_work(hdev->workqueue, &hdev->ncmd_timer,
3785 HCI_NCMD_TIMEOUT);
de75cd0d
MM		 3786 }
3787 }
deee93d1 3788 rcu_read_unlock();
de75cd0d
MM		 3789}
3790
26afbd82
LAD		 3791static u8 hci_cc_le_read_buffer_size_v2(struct hci_dev *hdev, void *data,
3792 struct sk_buff *skb)
3793{
3794 struct hci_rp_le_read_buffer_size_v2 *rp = data;
3795
3796 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3797
3798 if (rp->status)
3799 return rp->status;
3800
3801 hdev->le_mtu = __le16_to_cpu(rp->acl_mtu);
3802 hdev->le_pkts = rp->acl_max_pkt;
3803 hdev->iso_mtu = __le16_to_cpu(rp->iso_mtu);
3804 hdev->iso_pkts = rp->iso_max_pkt;
3805
3806 hdev->le_cnt = hdev->le_pkts;
3807 hdev->iso_cnt = hdev->iso_pkts;
3808
3809 BT_DBG("%s acl mtu %d:%d iso mtu %d:%d", hdev->name, hdev->acl_mtu,
3810 hdev->acl_pkts, hdev->iso_mtu, hdev->iso_pkts);
3811
3812 return rp->status;
3813}
3814
66dee215
PV		 3815static void hci_unbound_cis_failed(struct hci_dev *hdev, u8 cig, u8 status)
3816{
3817 struct hci_conn *conn, *tmp;
3818
3819 lockdep_assert_held(&hdev->lock);
3820
3821 list_for_each_entry_safe(conn, tmp, &hdev->conn_hash.list, list) {
3822 if (conn->type != ISO_LINK || !bacmp(&conn->dst, BDADDR_ANY) ||
3823 conn->state == BT_OPEN || conn->iso_qos.ucast.cig != cig)
3824 continue;
3825
3826 if (HCI_CONN_HANDLE_UNSET(conn->handle))
3827 hci_conn_failed(conn, status);
3828 }
3829}
3830
26afbd82
LAD		 3831static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
3832 struct sk_buff *skb)
3833{
3834 struct hci_rp_le_set_cig_params *rp = data;
71e95884 3835 struct hci_cp_le_set_cig_params *cp;
26afbd82 3836 struct hci_conn *conn;
71e95884 3837 u8 status = rp->status;
7f74563e 3838 bool pending = false;
71e95884 3839 int i;
26afbd82
LAD		 3840
3841 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3842
71e95884 3843 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS);
db9cbcad
PV		 3844 if (!rp->status && (!cp || rp->num_handles != cp->num_cis ||
3845 rp->cig_id != cp->cig_id)) {
71e95884
PV		 3846 bt_dev_err(hdev, "unexpected Set CIG Parameters response data");
3847 status = HCI_ERROR_UNSPECIFIED;
3848 }
3849
26afbd82
LAD		 3850 hci_dev_lock(hdev);
3851
66dee215
PV		 3852 /* BLUETOOTH CORE SPECIFICATION Version 5.4 | Vol 4, Part E page 2554
3853 *
3854 * If the Status return parameter is non-zero, then the state of the CIG
3855 * and its CIS configurations shall not be changed by the command. If
3856 * the CIG did not already exist, it shall not be created.
3857 */
71e95884 3858 if (status) {
66dee215
PV		 3859 /* Keep current configuration, fail only the unbound CIS */
3860 hci_unbound_cis_failed(hdev, rp->cig_id, status);
26afbd82
LAD		 3861 goto unlock;
3862 }
3863
71e95884
PV		 3864 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 2553
3865 *
3866 * If the Status return parameter is zero, then the Controller shall
3867 * set the Connection_Handle arrayed return parameter to the connection
3868 * handle(s) corresponding to the CIS configurations specified in
3869 * the CIS_IDs command parameter, in the same order.
3870 */
3871 for (i = 0; i < rp->num_handles; ++i) {
3872 conn = hci_conn_hash_lookup_cis(hdev, NULL, 0, rp->cig_id,
3873 cp->cis[i].cis_id);
3874 if (!conn || !bacmp(&conn->dst, BDADDR_ANY))
3875 continue;
26afbd82 3876
71e95884 3877 if (conn->state != BT_BOUND && conn->state != BT_CONNECT)
26afbd82
LAD		 3878 continue;
3879
16e3b642
LAD		 3880 if (hci_conn_set_handle(conn, __le16_to_cpu(rp->handle[i])))
3881 continue;
26afbd82 3882
7f74563e
PV		 3883 if (conn->state == BT_CONNECT)
3884 pending = true;
26afbd82
LAD		 3885 }
3886
26afbd82 3887unlock:
7f74563e
PV		 3888 if (pending)
3889 hci_le_create_cis_pending(hdev);
3890
26afbd82
LAD		 3891 hci_dev_unlock(hdev);
3892
3893 return rp->status;
3894}
3895
3896static u8 hci_cc_le_setup_iso_path(struct hci_dev *hdev, void *data,
3897 struct sk_buff *skb)
3898{
3899 struct hci_rp_le_setup_iso_path *rp = data;
3900 struct hci_cp_le_setup_iso_path *cp;
3901 struct hci_conn *conn;
3902
3903 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3904
3905 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SETUP_ISO_PATH);
3906 if (!cp)
3907 return rp->status;
3908
3909 hci_dev_lock(hdev);
3910
3911 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
3912 if (!conn)
3913 goto unlock;
3914
3915 if (rp->status) {
3916 hci_connect_cfm(conn, rp->status);
3917 hci_conn_del(conn);
3918 goto unlock;
3919 }
3920
3921 switch (cp->direction) {
3922 /* Input (Host to Controller) */
3923 case 0x00:
3924 /* Only confirm connection if output only */
0fe8c8d0 3925 if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu)
26afbd82
LAD		 3926 hci_connect_cfm(conn, rp->status);
3927 break;
3928 /* Output (Controller to Host) */
3929 case 0x01:
3930 /* Confirm connection since conn->iso_qos is always configured
3931 * last.
3932 */
3933 hci_connect_cfm(conn, rp->status);
3934 break;
3935 }
3936
3937unlock:
3938 hci_dev_unlock(hdev);
3939 return rp->status;
3940}
3941
eca0ae4a
LAD		 3942static void hci_cs_le_create_big(struct hci_dev *hdev, u8 status)
3943{
3944 bt_dev_dbg(hdev, "status 0x%2.2x", status);
3945}
3946
3947static u8 hci_cc_set_per_adv_param(struct hci_dev *hdev, void *data,
3948 struct sk_buff *skb)
3949{
3950 struct hci_ev_status *rp = data;
3951 struct hci_cp_le_set_per_adv_params *cp;
3952
3953 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3954
3955 if (rp->status)
3956 return rp->status;
3957
3958 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_PARAMS);
3959 if (!cp)
3960 return rp->status;
3961
3962 /* TODO: set the conn state */
3963 return rp->status;
3964}
3965
3966static u8 hci_cc_le_set_per_adv_enable(struct hci_dev *hdev, void *data,
3967 struct sk_buff *skb)
3968{
3969 struct hci_ev_status *rp = data;
6a42e9bf
IT		 3970 struct hci_cp_le_set_per_adv_enable *cp;
3971 struct adv_info *adv = NULL, *n;
3972 u8 per_adv_cnt = 0;
eca0ae4a
LAD		 3973
3974 bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
3975
3976 if (rp->status)
3977 return rp->status;
3978
6a42e9bf
IT		 3979 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE);
3980 if (!cp)
eca0ae4a
LAD		 3981 return rp->status;
3982
3983 hci_dev_lock(hdev);
3984
6a42e9bf
IT		 3985 adv = hci_find_adv_instance(hdev, cp->handle);
3986
3987 if (cp->enable) {
eca0ae4a 3988 hci_dev_set_flag(hdev, HCI_LE_PER_ADV);
6a42e9bf
IT		 3989
3990 if (adv)
3991 adv->enabled = true;
3992 } else {
3993 /* If just one instance was disabled check if there are
3994 * any other instance enabled before clearing HCI_LE_PER_ADV.
3995 * The current periodic adv instance will be marked as
3996 * disabled once extended advertising is also disabled.
3997 */
3998 list_for_each_entry_safe(adv, n, &hdev->adv_instances,
3999 list) {
4000 if (adv->periodic && adv->enabled)
4001 per_adv_cnt++;
4002 }
4003
4004 if (per_adv_cnt > 1)
4005 goto unlock;
4006
eca0ae4a 4007 hci_dev_clear_flag(hdev, HCI_LE_PER_ADV);
6a42e9bf 4008 }
eca0ae4a 4009
6a42e9bf 4010unlock:
eca0ae4a
LAD		 4011 hci_dev_unlock(hdev);
4012
4013 return rp->status;
4014}
4015
c8992cff
LAD		 4016#define HCI_CC_VL(_op, _func, _min, _max) \
4017{ \
4018 .op = _op, \
4019 .func = _func, \
4020 .min_len = _min, \
4021 .max_len = _max, \
4022}
4023
4024#define HCI_CC(_op, _func, _len) \
4025 HCI_CC_VL(_op, _func, _len, _len)
4026
4027#define HCI_CC_STATUS(_op, _func) \
4028 HCI_CC(_op, _func, sizeof(struct hci_ev_status))
4029
4030static const struct hci_cc {
4031 u16 op;
4032 u8 (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
4033 u16 min_len;
4034 u16 max_len;
4035} hci_cc_table[] = {
4036 HCI_CC_STATUS(HCI_OP_INQUIRY_CANCEL, hci_cc_inquiry_cancel),
4037 HCI_CC_STATUS(HCI_OP_PERIODIC_INQ, hci_cc_periodic_inq),
4038 HCI_CC_STATUS(HCI_OP_EXIT_PERIODIC_INQ, hci_cc_exit_periodic_inq),
4039 HCI_CC_STATUS(HCI_OP_REMOTE_NAME_REQ_CANCEL,
4040 hci_cc_remote_name_req_cancel),
4041 HCI_CC(HCI_OP_ROLE_DISCOVERY, hci_cc_role_discovery,
4042 sizeof(struct hci_rp_role_discovery)),
4043 HCI_CC(HCI_OP_READ_LINK_POLICY, hci_cc_read_link_policy,
4044 sizeof(struct hci_rp_read_link_policy)),
4045 HCI_CC(HCI_OP_WRITE_LINK_POLICY, hci_cc_write_link_policy,
4046 sizeof(struct hci_rp_write_link_policy)),
4047 HCI_CC(HCI_OP_READ_DEF_LINK_POLICY, hci_cc_read_def_link_policy,
4048 sizeof(struct hci_rp_read_def_link_policy)),
4049 HCI_CC_STATUS(HCI_OP_WRITE_DEF_LINK_POLICY,
4050 hci_cc_write_def_link_policy),
4051 HCI_CC_STATUS(HCI_OP_RESET, hci_cc_reset),
4052 HCI_CC(HCI_OP_READ_STORED_LINK_KEY, hci_cc_read_stored_link_key,
4053 sizeof(struct hci_rp_read_stored_link_key)),
4054 HCI_CC(HCI_OP_DELETE_STORED_LINK_KEY, hci_cc_delete_stored_link_key,
4055 sizeof(struct hci_rp_delete_stored_link_key)),
4056 HCI_CC_STATUS(HCI_OP_WRITE_LOCAL_NAME, hci_cc_write_local_name),
4057 HCI_CC(HCI_OP_READ_LOCAL_NAME, hci_cc_read_local_name,
4058 sizeof(struct hci_rp_read_local_name)),
4059 HCI_CC_STATUS(HCI_OP_WRITE_AUTH_ENABLE, hci_cc_write_auth_enable),
4060 HCI_CC_STATUS(HCI_OP_WRITE_ENCRYPT_MODE, hci_cc_write_encrypt_mode),
4061 HCI_CC_STATUS(HCI_OP_WRITE_SCAN_ENABLE, hci_cc_write_scan_enable),
4062 HCI_CC_STATUS(HCI_OP_SET_EVENT_FLT, hci_cc_set_event_filter),
4063 HCI_CC(HCI_OP_READ_CLASS_OF_DEV, hci_cc_read_class_of_dev,
4064 sizeof(struct hci_rp_read_class_of_dev)),
4065 HCI_CC_STATUS(HCI_OP_WRITE_CLASS_OF_DEV, hci_cc_write_class_of_dev),
4066 HCI_CC(HCI_OP_READ_VOICE_SETTING, hci_cc_read_voice_setting,
4067 sizeof(struct hci_rp_read_voice_setting)),
4068 HCI_CC_STATUS(HCI_OP_WRITE_VOICE_SETTING, hci_cc_write_voice_setting),
4069 HCI_CC(HCI_OP_READ_NUM_SUPPORTED_IAC, hci_cc_read_num_supported_iac,
4070 sizeof(struct hci_rp_read_num_supported_iac)),
4071 HCI_CC_STATUS(HCI_OP_WRITE_SSP_MODE, hci_cc_write_ssp_mode),
4072 HCI_CC_STATUS(HCI_OP_WRITE_SC_SUPPORT, hci_cc_write_sc_support),
4073 HCI_CC(HCI_OP_READ_AUTH_PAYLOAD_TO, hci_cc_read_auth_payload_timeout,
4074 sizeof(struct hci_rp_read_auth_payload_to)),
4075 HCI_CC(HCI_OP_WRITE_AUTH_PAYLOAD_TO, hci_cc_write_auth_payload_timeout,
4076 sizeof(struct hci_rp_write_auth_payload_to)),
4077 HCI_CC(HCI_OP_READ_LOCAL_VERSION, hci_cc_read_local_version,
4078 sizeof(struct hci_rp_read_local_version)),
4079 HCI_CC(HCI_OP_READ_LOCAL_COMMANDS, hci_cc_read_local_commands,
4080 sizeof(struct hci_rp_read_local_commands)),
4081 HCI_CC(HCI_OP_READ_LOCAL_FEATURES, hci_cc_read_local_features,
4082 sizeof(struct hci_rp_read_local_features)),
4083 HCI_CC(HCI_OP_READ_LOCAL_EXT_FEATURES, hci_cc_read_local_ext_features,
4084 sizeof(struct hci_rp_read_local_ext_features)),
4085 HCI_CC(HCI_OP_READ_BUFFER_SIZE, hci_cc_read_buffer_size,
4086 sizeof(struct hci_rp_read_buffer_size)),
4087 HCI_CC(HCI_OP_READ_BD_ADDR, hci_cc_read_bd_addr,
4088 sizeof(struct hci_rp_read_bd_addr)),
4089 HCI_CC(HCI_OP_READ_LOCAL_PAIRING_OPTS, hci_cc_read_local_pairing_opts,
4090 sizeof(struct hci_rp_read_local_pairing_opts)),
4091 HCI_CC(HCI_OP_READ_PAGE_SCAN_ACTIVITY, hci_cc_read_page_scan_activity,
4092 sizeof(struct hci_rp_read_page_scan_activity)),
4093 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
4094 hci_cc_write_page_scan_activity),
4095 HCI_CC(HCI_OP_READ_PAGE_SCAN_TYPE, hci_cc_read_page_scan_type,
4096 sizeof(struct hci_rp_read_page_scan_type)),
4097 HCI_CC_STATUS(HCI_OP_WRITE_PAGE_SCAN_TYPE, hci_cc_write_page_scan_type),
4098 HCI_CC(HCI_OP_READ_DATA_BLOCK_SIZE, hci_cc_read_data_block_size,
4099 sizeof(struct hci_rp_read_data_block_size)),
4100 HCI_CC(HCI_OP_READ_FLOW_CONTROL_MODE, hci_cc_read_flow_control_mode,
4101 sizeof(struct hci_rp_read_flow_control_mode)),
4102 HCI_CC(HCI_OP_READ_LOCAL_AMP_INFO, hci_cc_read_local_amp_info,
4103 sizeof(struct hci_rp_read_local_amp_info)),
4104 HCI_CC(HCI_OP_READ_CLOCK, hci_cc_read_clock,
4105 sizeof(struct hci_rp_read_clock)),
278d933e
BG		 4106 HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size,
4107 sizeof(struct hci_rp_read_enc_key_size)),
c8992cff
LAD		 4108 HCI_CC(HCI_OP_READ_INQ_RSP_TX_POWER, hci_cc_read_inq_rsp_tx_power,
4109 sizeof(struct hci_rp_read_inq_rsp_tx_power)),
4110 HCI_CC(HCI_OP_READ_DEF_ERR_DATA_REPORTING,
4111 hci_cc_read_def_err_data_reporting,
4112 sizeof(struct hci_rp_read_def_err_data_reporting)),
4113 HCI_CC_STATUS(HCI_OP_WRITE_DEF_ERR_DATA_REPORTING,
4114 hci_cc_write_def_err_data_reporting),
4115 HCI_CC(HCI_OP_PIN_CODE_REPLY, hci_cc_pin_code_reply,
4116 sizeof(struct hci_rp_pin_code_reply)),
4117 HCI_CC(HCI_OP_PIN_CODE_NEG_REPLY, hci_cc_pin_code_neg_reply,
4118 sizeof(struct hci_rp_pin_code_neg_reply)),
4119 HCI_CC(HCI_OP_READ_LOCAL_OOB_DATA, hci_cc_read_local_oob_data,
4120 sizeof(struct hci_rp_read_local_oob_data)),
4121 HCI_CC(HCI_OP_READ_LOCAL_OOB_EXT_DATA, hci_cc_read_local_oob_ext_data,
4122 sizeof(struct hci_rp_read_local_oob_ext_data)),
4123 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE, hci_cc_le_read_buffer_size,
4124 sizeof(struct hci_rp_le_read_buffer_size)),
4125 HCI_CC(HCI_OP_LE_READ_LOCAL_FEATURES, hci_cc_le_read_local_features,
4126 sizeof(struct hci_rp_le_read_local_features)),
4127 HCI_CC(HCI_OP_LE_READ_ADV_TX_POWER, hci_cc_le_read_adv_tx_power,
4128 sizeof(struct hci_rp_le_read_adv_tx_power)),
4129 HCI_CC(HCI_OP_USER_CONFIRM_REPLY, hci_cc_user_confirm_reply,
4130 sizeof(struct hci_rp_user_confirm_reply)),
4131 HCI_CC(HCI_OP_USER_CONFIRM_NEG_REPLY, hci_cc_user_confirm_neg_reply,
4132 sizeof(struct hci_rp_user_confirm_reply)),
4133 HCI_CC(HCI_OP_USER_PASSKEY_REPLY, hci_cc_user_passkey_reply,
4134 sizeof(struct hci_rp_user_confirm_reply)),
4135 HCI_CC(HCI_OP_USER_PASSKEY_NEG_REPLY, hci_cc_user_passkey_neg_reply,
4136 sizeof(struct hci_rp_user_confirm_reply)),
4137 HCI_CC_STATUS(HCI_OP_LE_SET_RANDOM_ADDR, hci_cc_le_set_random_addr),
4138 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_ENABLE, hci_cc_le_set_adv_enable),
4139 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_PARAM, hci_cc_le_set_scan_param),
4140 HCI_CC_STATUS(HCI_OP_LE_SET_SCAN_ENABLE, hci_cc_le_set_scan_enable),
4141 HCI_CC(HCI_OP_LE_READ_ACCEPT_LIST_SIZE,
4142 hci_cc_le_read_accept_list_size,
4143 sizeof(struct hci_rp_le_read_accept_list_size)),
4144 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ACCEPT_LIST, hci_cc_le_clear_accept_list),
4145 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_ACCEPT_LIST,
4146 hci_cc_le_add_to_accept_list),
4147 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_ACCEPT_LIST,
4148 hci_cc_le_del_from_accept_list),
4149 HCI_CC(HCI_OP_LE_READ_SUPPORTED_STATES, hci_cc_le_read_supported_states,
4150 sizeof(struct hci_rp_le_read_supported_states)),
4151 HCI_CC(HCI_OP_LE_READ_DEF_DATA_LEN, hci_cc_le_read_def_data_len,
4152 sizeof(struct hci_rp_le_read_def_data_len)),
4153 HCI_CC_STATUS(HCI_OP_LE_WRITE_DEF_DATA_LEN,
4154 hci_cc_le_write_def_data_len),
4155 HCI_CC_STATUS(HCI_OP_LE_ADD_TO_RESOLV_LIST,
4156 hci_cc_le_add_to_resolv_list),
4157 HCI_CC_STATUS(HCI_OP_LE_DEL_FROM_RESOLV_LIST,
4158 hci_cc_le_del_from_resolv_list),
4159 HCI_CC_STATUS(HCI_OP_LE_CLEAR_RESOLV_LIST,
4160 hci_cc_le_clear_resolv_list),
4161 HCI_CC(HCI_OP_LE_READ_RESOLV_LIST_SIZE, hci_cc_le_read_resolv_list_size,
4162 sizeof(struct hci_rp_le_read_resolv_list_size)),
4163 HCI_CC_STATUS(HCI_OP_LE_SET_ADDR_RESOLV_ENABLE,
4164 hci_cc_le_set_addr_resolution_enable),
4165 HCI_CC(HCI_OP_LE_READ_MAX_DATA_LEN, hci_cc_le_read_max_data_len,
4166 sizeof(struct hci_rp_le_read_max_data_len)),
4167 HCI_CC_STATUS(HCI_OP_WRITE_LE_HOST_SUPPORTED,
4168 hci_cc_write_le_host_supported),
4169 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_PARAM, hci_cc_set_adv_param),
4170 HCI_CC(HCI_OP_READ_RSSI, hci_cc_read_rssi,
4171 sizeof(struct hci_rp_read_rssi)),
4172 HCI_CC(HCI_OP_READ_TX_POWER, hci_cc_read_tx_power,
4173 sizeof(struct hci_rp_read_tx_power)),
4174 HCI_CC_STATUS(HCI_OP_WRITE_SSP_DEBUG_MODE, hci_cc_write_ssp_debug_mode),
4175 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_PARAMS,
4176 hci_cc_le_set_ext_scan_param),
4177 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_SCAN_ENABLE,
4178 hci_cc_le_set_ext_scan_enable),
4179 HCI_CC_STATUS(HCI_OP_LE_SET_DEFAULT_PHY, hci_cc_le_set_default_phy),
4180 HCI_CC(HCI_OP_LE_READ_NUM_SUPPORTED_ADV_SETS,
4181 hci_cc_le_read_num_adv_sets,
4182 sizeof(struct hci_rp_le_read_num_supported_adv_sets)),
4183 HCI_CC(HCI_OP_LE_SET_EXT_ADV_PARAMS, hci_cc_set_ext_adv_param,
4184 sizeof(struct hci_rp_le_set_ext_adv_params)),
4185 HCI_CC_STATUS(HCI_OP_LE_SET_EXT_ADV_ENABLE,
4186 hci_cc_le_set_ext_adv_enable),
4187 HCI_CC_STATUS(HCI_OP_LE_SET_ADV_SET_RAND_ADDR,
4188 hci_cc_le_set_adv_set_random_addr),
4189 HCI_CC_STATUS(HCI_OP_LE_REMOVE_ADV_SET, hci_cc_le_remove_adv_set),
4190 HCI_CC_STATUS(HCI_OP_LE_CLEAR_ADV_SETS, hci_cc_le_clear_adv_sets),
eca0ae4a
LAD		 4191 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_PARAMS, hci_cc_set_per_adv_param),
4192 HCI_CC_STATUS(HCI_OP_LE_SET_PER_ADV_ENABLE,
4193 hci_cc_le_set_per_adv_enable),
c8992cff 4194 HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power,
853b70b5 4195 sizeof(struct hci_rp_le_read_transmit_power)),
26afbd82
LAD		 4196 HCI_CC_STATUS(HCI_OP_LE_SET_PRIVACY_MODE, hci_cc_le_set_privacy_mode),
4197 HCI_CC(HCI_OP_LE_READ_BUFFER_SIZE_V2, hci_cc_le_read_buffer_size_v2,
4198 sizeof(struct hci_rp_le_read_buffer_size_v2)),
4199 HCI_CC_VL(HCI_OP_LE_SET_CIG_PARAMS, hci_cc_le_set_cig_params,
4200 sizeof(struct hci_rp_le_set_cig_params), HCI_MAX_EVENT_SIZE),
4201 HCI_CC(HCI_OP_LE_SETUP_ISO_PATH, hci_cc_le_setup_iso_path,
4202 sizeof(struct hci_rp_le_setup_iso_path)),
c8992cff
LAD		 4203};
4204
4205static u8 hci_cc_func(struct hci_dev *hdev, const struct hci_cc *cc,
4206 struct sk_buff *skb)
4207{
4208 void *data;
4209
4210 if (skb->len < cc->min_len) {
4211 bt_dev_err(hdev, "unexpected cc 0x%4.4x length: %u < %u",
4212 cc->op, skb->len, cc->min_len);
4213 return HCI_ERROR_UNSPECIFIED;
4214 }
4215
4216 /* Just warn if the length is over max_len size it still be possible to
4217 * partially parse the cc so leave to callback to decide if that is
4218 * acceptable.
4219 */
4220 if (skb->len > cc->max_len)
4221 bt_dev_warn(hdev, "unexpected cc 0x%4.4x length: %u > %u",
4222 cc->op, skb->len, cc->max_len);
4223
4224 data = hci_cc_skb_pull(hdev, skb, cc->op, cc->min_len);
4225 if (!data)
4226 return HCI_ERROR_UNSPECIFIED;
4227
4228 return cc->func(hdev, data, skb);
4229}
4230
3e54c589
LAD		 4231static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data,
4232 struct sk_buff *skb, u16 *opcode, u8 *status,
e6214487
JH		 4233 hci_req_complete_t *req_complete,
4234 hci_req_complete_skb_t *req_complete_skb)
a9de9248 4235{
3e54c589 4236 struct hci_ev_cmd_complete *ev = data;
c8992cff 4237 int i;
a9de9248 4238
e3f3a1ae 4239 *opcode = __le16_to_cpu(ev->opcode);
cba6b758 4240
c8992cff 4241 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
7c395ea5 4242
c8992cff
LAD		 4243 for (i = 0; i < ARRAY_SIZE(hci_cc_table); i++) {
4244 if (hci_cc_table[i].op == *opcode) {
4245 *status = hci_cc_func(hdev, &hci_cc_table[i], skb);
4246 break;
4247 }
a9de9248
MH		 4248 }
4249
afcb3369
HG		 4250 if (i == ARRAY_SIZE(hci_cc_table)) {
4251 /* Unknown opcode, assume byte 0 contains the status, so
4252 * that e.g. __hci_cmd_sync() properly returns errors
4253 * for vendor specific commands send by HCI drivers.
4254 * If a vendor doesn't actually follow this convention we may
4255 * need to introduce a vendor CC table in order to properly set
4256 * the status.
4257 */
4258 *status = skb->data[0];
4259 }
4260
ecb71f25 4261 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
600b2150 4262
e6214487
JH		 4263 hci_req_cmd_complete(hdev, *opcode, *status, req_complete,
4264 req_complete_skb);
9238f36a 4265
f80c5dad
JPRV		 4266 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4267 bt_dev_err(hdev,
4268 "unexpected event for opcode 0x%4.4x", *opcode);
4269 return;
4270 }
4271
600b2150
JH		 4272 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4273 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 4274}
4275
26afbd82
LAD		 4276static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status)
4277{
4278 struct hci_cp_le_create_cis *cp;
7f74563e 4279 bool pending = false;
26afbd82
LAD		 4280 int i;
4281
4282 bt_dev_dbg(hdev, "status 0x%2.2x", status);
4283
4284 if (!status)
4285 return;
4286
4287 cp = hci_sent_cmd_data(hdev, HCI_OP_LE_CREATE_CIS);
4288 if (!cp)
4289 return;
4290
4291 hci_dev_lock(hdev);
4292
4293 /* Remove connection if command failed */
4294 for (i = 0; cp->num_cis; cp->num_cis--, i++) {
4295 struct hci_conn *conn;
4296 u16 handle;
4297
4298 handle = __le16_to_cpu(cp->cis[i].cis_handle);
4299
4300 conn = hci_conn_hash_lookup_handle(hdev, handle);
4301 if (conn) {
7f74563e
PV		 4302 if (test_and_clear_bit(HCI_CONN_CREATE_CIS,
4303 &conn->flags))
4304 pending = true;
26afbd82
LAD		 4305 conn->state = BT_CLOSED;
4306 hci_connect_cfm(conn, status);
4307 hci_conn_del(conn);
4308 }
4309 }
4310
7f74563e
PV		 4311 if (pending)
4312 hci_le_create_cis_pending(hdev);
4313
26afbd82
LAD		 4314 hci_dev_unlock(hdev);
4315}
4316
147306cc
LAD		 4317#define HCI_CS(_op, _func) \
4318{ \
4319 .op = _op, \
4320 .func = _func, \
4321}
4322
4323static const struct hci_cs {
4324 u16 op;
4325 void (*func)(struct hci_dev *hdev, __u8 status);
4326} hci_cs_table[] = {
4327 HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry),
4328 HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn),
4329 HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect),
4330 HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco),
4331 HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested),
4332 HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt),
4333 HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req),
4334 HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features),
4335 HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES,
4336 hci_cs_read_remote_ext_features),
4337 HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn),
4338 HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN,
4339 hci_cs_enhanced_setup_sync_conn),
4340 HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode),
4341 HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode),
4342 HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role),
4343 HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn),
4344 HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features),
4345 HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc),
26afbd82
LAD		 4346 HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn),
4347 HCI_CS(HCI_OP_LE_CREATE_CIS, hci_cs_le_create_cis),
eca0ae4a 4348 HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big),
147306cc
LAD		 4349};
4350
3e54c589
LAD		 4351static void hci_cmd_status_evt(struct hci_dev *hdev, void *data,
4352 struct sk_buff *skb, u16 *opcode, u8 *status,
e6214487
JH		 4353 hci_req_complete_t *req_complete,
4354 hci_req_complete_skb_t *req_complete_skb)
a9de9248 4355{
3e54c589 4356 struct hci_ev_cmd_status *ev = data;
147306cc 4357 int i;
a9de9248 4358
e6214487
JH		 4359 *opcode = __le16_to_cpu(ev->opcode);
4360 *status = ev->status;
a9de9248 4361
147306cc 4362 bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode);
4d94f95d 4363
147306cc
LAD		 4364 for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) {
4365 if (hci_cs_table[i].op == *opcode) {
4366 hci_cs_table[i].func(hdev, ev->status);
4367 break;
4368 }
a9de9248
MH		 4369 }
4370
ecb71f25 4371 handle_cmd_cnt_and_timer(hdev, ev->ncmd);
600b2150 4372
444c6dd5
JH		 4373 /* Indicate request completion if the command failed. Also, if
4374 * we're not waiting for a special event and we get a success
4375 * command status we should try to flag the request as completed
4376 * (since for this kind of commands there will not be a command
4377 * complete event).
4378 */
85b56857 4379 if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) {
e6214487
JH		 4380 hci_req_cmd_complete(hdev, *opcode, ev->status, req_complete,
4381 req_complete_skb);
85b56857
LAD		 4382 if (hci_dev_test_flag(hdev, HCI_CMD_PENDING)) {
4383 bt_dev_err(hdev, "unexpected event for opcode 0x%4.4x",
4384 *opcode);
4385 return;
4386 }
f80c5dad
JPRV		 4387 }
4388
600b2150
JH		 4389 if (atomic_read(&hdev->cmd_cnt) && !skb_queue_empty(&hdev->cmd_q))
4390 queue_work(hdev->workqueue, &hdev->cmd_work);
a9de9248
MH		 4391}
4392
3e54c589
LAD		 4393static void hci_hardware_error_evt(struct hci_dev *hdev, void *data,
4394 struct sk_buff *skb)
24dfa343 4395{
3e54c589 4396 struct hci_ev_hardware_error *ev = data;
ae61a10d 4397
3e54c589 4398 bt_dev_dbg(hdev, "code 0x%2.2x", ev->code);
24dfa343 4399
c7741d16
MH		 4400 hdev->hw_error_code = ev->code;
4401
4402 queue_work(hdev->req_workqueue, &hdev->error_reset);
24dfa343
MH		 4403}
4404
3e54c589
LAD		 4405static void hci_role_change_evt(struct hci_dev *hdev, void *data,
4406 struct sk_buff *skb)
a9de9248 4407{
3e54c589 4408 struct hci_ev_role_change *ev = data;
a9de9248
MH		 4409 struct hci_conn *conn;
4410
3e54c589 4411 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
a9de9248
MH		 4412
4413 hci_dev_lock(hdev);
4414
4415 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
4416 if (conn) {
40bef302
JH		 4417 if (!ev->status)
4418 conn->role = ev->role;
a9de9248 4419
51a8efd7 4420 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags);
a9de9248
MH		 4421
4422 hci_role_switch_cfm(conn, ev->status, ev->role);
4423 }
4424
4425 hci_dev_unlock(hdev);
4426}
4427
3e54c589
LAD		 4428static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
4429 struct sk_buff *skb)
a9de9248 4430{
3e54c589 4431 struct hci_ev_num_comp_pkts *ev = data;
a9de9248
MH		 4432 int i;
4433
aadc3d2f
LAD		 4434 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_PKTS,
4435 flex_array_size(ev, handles, ev->num)))
4436 return;
4437
4438 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_PACKET_BASED) {
4439 bt_dev_err(hdev, "wrong event for mode %d", hdev->flow_ctl_mode);
a9de9248
MH		 4440 return;
4441 }
4442
3e54c589 4443 bt_dev_dbg(hdev, "num %d", ev->num);
c5993de8 4444
aadc3d2f 4445 for (i = 0; i < ev->num; i++) {
613a1c0c 4446 struct hci_comp_pkts_info *info = &ev->handles[i];
a9de9248
MH		 4447 struct hci_conn *conn;
4448 __u16 handle, count;
4449
613a1c0c
AE		 4450 handle = __le16_to_cpu(info->handle);
4451 count = __le16_to_cpu(info->count);
a9de9248
MH		 4452
4453 conn = hci_conn_hash_lookup_handle(hdev, handle);
f4280918
AE		 4454 if (!conn)
4455 continue;
4456
4457 conn->sent -= count;
4458
4459 switch (conn->type) {
4460 case ACL_LINK:
4461 hdev->acl_cnt += count;
4462 if (hdev->acl_cnt > hdev->acl_pkts)
4463 hdev->acl_cnt = hdev->acl_pkts;
4464 break;
4465
4466 case LE_LINK:
4467 if (hdev->le_pkts) {
4468 hdev->le_cnt += count;
4469 if (hdev->le_cnt > hdev->le_pkts)
4470 hdev->le_cnt = hdev->le_pkts;
4471 } else {
70f23020
AE		 4472 hdev->acl_cnt += count;
4473 if (hdev->acl_cnt > hdev->acl_pkts)
a9de9248 4474 hdev->acl_cnt = hdev->acl_pkts;
a9de9248 4475 }
f4280918
AE		 4476 break;
4477
4478 case SCO_LINK:
4479 hdev->sco_cnt += count;
4480 if (hdev->sco_cnt > hdev->sco_pkts)
4481 hdev->sco_cnt = hdev->sco_pkts;
4482 break;
4483
26afbd82
LAD		 4484 case ISO_LINK:
4485 if (hdev->iso_pkts) {
4486 hdev->iso_cnt += count;
4487 if (hdev->iso_cnt > hdev->iso_pkts)
4488 hdev->iso_cnt = hdev->iso_pkts;
4489 } else if (hdev->le_pkts) {
4490 hdev->le_cnt += count;
4491 if (hdev->le_cnt > hdev->le_pkts)
4492 hdev->le_cnt = hdev->le_pkts;
4493 } else {
4494 hdev->acl_cnt += count;
4495 if (hdev->acl_cnt > hdev->acl_pkts)
4496 hdev->acl_cnt = hdev->acl_pkts;
4497 }
4498 break;
4499
f4280918 4500 default:
2064ee33
MH		 4501 bt_dev_err(hdev, "unknown type %d conn %p",
4502 conn->type, conn);
f4280918 4503 break;
a9de9248
MH		 4504 }
4505 }
4506
3eff45ea 4507 queue_work(hdev->workqueue, &hdev->tx_work);
a9de9248
MH		 4508}
4509
76ef7cf7
AE		 4510static struct hci_conn *__hci_conn_lookup_handle(struct hci_dev *hdev,
4511 __u16 handle)
4512{
4513 struct hci_chan *chan;
4514
4515 switch (hdev->dev_type) {
ca8bee5d 4516 case HCI_PRIMARY:
76ef7cf7
AE		 4517 return hci_conn_hash_lookup_handle(hdev, handle);
4518 case HCI_AMP:
4519 chan = hci_chan_lookup_handle(hdev, handle);
4520 if (chan)
4521 return chan->conn;
4522 break;
4523 default:
2064ee33 4524 bt_dev_err(hdev, "unknown dev_type %d", hdev->dev_type);
76ef7cf7
AE		 4525 break;
4526 }
4527
4528 return NULL;
4529}
4530
3e54c589
LAD		 4531static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data,
4532 struct sk_buff *skb)
25e89e99 4533{
3e54c589 4534 struct hci_ev_num_comp_blocks *ev = data;
25e89e99
AE		 4535 int i;
4536
ae61a10d
LAD		 4537 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_NUM_COMP_BLOCKS,
4538 flex_array_size(ev, handles, ev->num_hndl)))
4539 return;
4540
4541 if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
3e54c589
LAD		 4542 bt_dev_err(hdev, "wrong event for mode %d",
4543 hdev->flow_ctl_mode);
25e89e99
AE		 4544 return;
4545 }
4546
3e54c589
LAD		 4547 bt_dev_dbg(hdev, "num_blocks %d num_hndl %d", ev->num_blocks,
4548 ev->num_hndl);
25e89e99
AE		 4549
4550 for (i = 0; i < ev->num_hndl; i++) {
4551 struct hci_comp_blocks_info *info = &ev->handles[i];
76ef7cf7 4552 struct hci_conn *conn = NULL;
25e89e99
AE		 4553 __u16 handle, block_count;
4554
4555 handle = __le16_to_cpu(info->handle);
4556 block_count = __le16_to_cpu(info->blocks);
4557
76ef7cf7 4558 conn = __hci_conn_lookup_handle(hdev, handle);
25e89e99
AE		 4559 if (!conn)
4560 continue;
4561
4562 conn->sent -= block_count;
4563
4564 switch (conn->type) {
4565 case ACL_LINK:
bd1eb66b 4566 case AMP_LINK:
25e89e99
AE		 4567 hdev->block_cnt += block_count;
4568 if (hdev->block_cnt > hdev->num_blocks)
4569 hdev->block_cnt = hdev->num_blocks;
4570 break;
4571
4572 default:
2064ee33
MH		 4573 bt_dev_err(hdev, "unknown type %d conn %p",
4574 conn->type, conn);
25e89e99
AE		 4575 break;
4576 }
4577 }
4578
4579 queue_work(hdev->workqueue, &hdev->tx_work);
4580}
4581
3e54c589
LAD		 4582static void hci_mode_change_evt(struct hci_dev *hdev, void *data,
4583 struct sk_buff *skb)
04837f64 4584{
3e54c589 4585 struct hci_ev_mode_change *ev = data;
04837f64
MH		 4586 struct hci_conn *conn;
4587
3e54c589 4588 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
04837f64
MH		 4589
4590 hci_dev_lock(hdev);
4591
4592 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
a9de9248
MH		 4593 if (conn) {
4594 conn->mode = ev->mode;
a9de9248 4595
8fc9ced3
GP		 4596 if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
4597 &conn->flags)) {
a9de9248 4598 if (conn->mode == HCI_CM_ACTIVE)
58a681ef 4599 set_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 4600 else
58a681ef 4601 clear_bit(HCI_CONN_POWER_SAVE, &conn->flags);
a9de9248 4602 }
e73439d8 4603
51a8efd7 4604 if (test_and_clear_bit(HCI_CONN_SCO_SETUP_PEND, &conn->flags))
e73439d8 4605 hci_sco_setup(conn, ev->status);
04837f64
MH		 4606 }
4607
4608 hci_dev_unlock(hdev);
4609}
4610
3e54c589
LAD		 4611static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data,
4612 struct sk_buff *skb)
a9de9248 4613{
3e54c589 4614 struct hci_ev_pin_code_req *ev = data;
052b30b0
MH		 4615 struct hci_conn *conn;
4616
3e54c589 4617 bt_dev_dbg(hdev, "");
052b30b0
MH		 4618
4619 hci_dev_lock(hdev);
4620
4621 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
b6f98044
WR		 4622 if (!conn)
4623 goto unlock;
4624
4625 if (conn->state == BT_CONNECTED) {
052b30b0
MH		 4626 hci_conn_hold(conn);
4627 conn->disc_timeout = HCI_PAIRING_TIMEOUT;
76a68ba0 4628 hci_conn_drop(conn);
052b30b0
MH		 4629 }
4630
d7a5a11d 4631 if (!hci_dev_test_flag(hdev, HCI_BONDABLE) &&
2f407f0a 4632 !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) {
03b555e1 4633 hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
807deac2 4634 sizeof(ev->bdaddr), &ev->bdaddr);
d7a5a11d 4635 } else if (hci_dev_test_flag(hdev, HCI_MGMT)) {
a770bb5a
WR		 4636 u8 secure;
4637
4638 if (conn->pending_sec_level == BT_SECURITY_HIGH)
4639 secure = 1;
4640 else
4641 secure = 0;
4642
744cf19e 4643 mgmt_pin_code_request(hdev, &ev->bdaddr, secure);
a770bb5a 4644 }
980e1a53 4645
b6f98044 4646unlock:
052b30b0 4647 hci_dev_unlock(hdev);
a9de9248
MH		 4648}
4649
cb6f3f7a
JH		 4650static void conn_set_key(struct hci_conn *conn, u8 key_type, u8 pin_len)
4651{
4652 if (key_type == HCI_LK_CHANGED_COMBINATION)
4653 return;
4654
4655 conn->pin_length = pin_len;
4656 conn->key_type = key_type;
4657
4658 switch (key_type) {
4659 case HCI_LK_LOCAL_UNIT:
4660 case HCI_LK_REMOTE_UNIT:
4661 case HCI_LK_DEBUG_COMBINATION:
4662 return;
4663 case HCI_LK_COMBINATION:
4664 if (pin_len == 16)
4665 conn->pending_sec_level = BT_SECURITY_HIGH;
4666 else
4667 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4668 break;
4669 case HCI_LK_UNAUTH_COMBINATION_P192:
4670 case HCI_LK_UNAUTH_COMBINATION_P256:
4671 conn->pending_sec_level = BT_SECURITY_MEDIUM;
4672 break;
4673 case HCI_LK_AUTH_COMBINATION_P192:
4674 conn->pending_sec_level = BT_SECURITY_HIGH;
4675 break;
4676 case HCI_LK_AUTH_COMBINATION_P256:
4677 conn->pending_sec_level = BT_SECURITY_FIPS;
4678 break;
4679 }
4680}
4681
3e54c589
LAD		 4682static void hci_link_key_request_evt(struct hci_dev *hdev, void *data,
4683 struct sk_buff *skb)
a9de9248 4684{
3e54c589 4685 struct hci_ev_link_key_req *ev = data;
55ed8ca1
JH		 4686 struct hci_cp_link_key_reply cp;
4687 struct hci_conn *conn;
4688 struct link_key *key;
4689
3e54c589 4690 bt_dev_dbg(hdev, "");
55ed8ca1 4691
d7a5a11d 4692 if (!hci_dev_test_flag(hdev, HCI_MGMT))
55ed8ca1
JH		 4693 return;
4694
4695 hci_dev_lock(hdev);
4696
4697 key = hci_find_link_key(hdev, &ev->bdaddr);
4698 if (!key) {
3e54c589 4699 bt_dev_dbg(hdev, "link key not found for %pMR", &ev->bdaddr);
55ed8ca1
JH		 4700 goto not_found;
4701 }
4702
3e54c589 4703 bt_dev_dbg(hdev, "found key type %u for %pMR", key->type, &ev->bdaddr);
55ed8ca1 4704
55ed8ca1 4705 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
60b83f57 4706 if (conn) {
fe8bc5ac
JH		 4707 clear_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
4708
66138ce8
MH		 4709 if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 ||
4710 key->type == HCI_LK_UNAUTH_COMBINATION_P256) &&
807deac2 4711 conn->auth_type != 0xff && (conn->auth_type & 0x01)) {
3e54c589 4712 bt_dev_dbg(hdev, "ignoring unauthenticated key");
60b83f57
WR		 4713 goto not_found;
4714 }
55ed8ca1 4715
60b83f57 4716 if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 &&
f3fb0b58
JH		 4717 (conn->pending_sec_level == BT_SECURITY_HIGH ||
4718 conn->pending_sec_level == BT_SECURITY_FIPS)) {
3e54c589 4719 bt_dev_dbg(hdev, "ignoring key unauthenticated for high security");
60b83f57
WR		 4720 goto not_found;
4721 }
4722
cb6f3f7a 4723 conn_set_key(conn, key->type, key->pin_len);
55ed8ca1
JH		 4724 }
4725
4726 bacpy(&cp.bdaddr, &ev->bdaddr);
9b3b4460 4727 memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE);
55ed8ca1
JH		 4728
4729 hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, sizeof(cp), &cp);
4730
4731 hci_dev_unlock(hdev);
4732
4733 return;
4734
4735not_found:
4736 hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, 6, &ev->bdaddr);
4737 hci_dev_unlock(hdev);
a9de9248
MH		 4738}
4739
3e54c589
LAD		 4740static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data,
4741 struct sk_buff *skb)
a9de9248 4742{
3e54c589 4743 struct hci_ev_link_key_notify *ev = data;
052b30b0 4744 struct hci_conn *conn;
7652ff6a
JH		 4745 struct link_key *key;
4746 bool persistent;
55ed8ca1 4747 u8 pin_len = 0;
052b30b0 4748
3e54c589 4749 bt_dev_dbg(hdev, "");
052b30b0
MH		 4750
4751 hci_dev_lock(hdev);
4752
4753 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
82c13d42
JH		 4754 if (!conn)
4755 goto unlock;
4756
33155c4a 4757 /* Ignore NULL link key against CVE-2020-26555 */
b5412606 4758 if (!crypto_memneq(ev->link_key, ZERO_KEY, HCI_LINK_KEY_SIZE)) {
33155c4a
LCY		 4759 bt_dev_dbg(hdev, "Ignore NULL link key (ZERO KEY) for %pMR",
4760 &ev->bdaddr);
4761 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
4762 hci_conn_drop(conn);
4763 goto unlock;
4764 }
4765
82c13d42
JH		 4766 hci_conn_hold(conn);
4767 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
4768 hci_conn_drop(conn);
4769
fe8bc5ac 4770 set_bit(HCI_CONN_NEW_LINK_KEY, &conn->flags);
82c13d42 4771 conn_set_key(conn, ev->key_type, conn->pin_length);
052b30b0 4772
d7a5a11d 4773 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7652ff6a
JH		 4774 goto unlock;
4775
4776 key = hci_add_link_key(hdev, conn, &ev->bdaddr, ev->link_key,
4777 ev->key_type, pin_len, &persistent);
4778 if (!key)
4779 goto unlock;
4780
cb6f3f7a
JH		 4781 /* Update connection information since adding the key will have
4782 * fixed up the type in the case of changed combination keys.
4783 */
4784 if (ev->key_type == HCI_LK_CHANGED_COMBINATION)
4785 conn_set_key(conn, key->type, key->pin_len);
4786
7652ff6a 4787 mgmt_new_link_key(hdev, key, persistent);
55ed8ca1 4788
6d5650c4
JH		 4789 /* Keep debug keys around only if the HCI_KEEP_DEBUG_KEYS flag
4790 * is set. If it's not set simply remove the key from the kernel
4791 * list (we've still notified user space about it but with
4792 * store_hint being 0).
4793 */
4794 if (key->type == HCI_LK_DEBUG_COMBINATION &&
d7a5a11d 4795 !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) {
0378b597
JH		 4796 list_del_rcu(&key->list);
4797 kfree_rcu(key, rcu);
82c13d42 4798 goto unlock;
6d5650c4 4799 }
7652ff6a 4800
82c13d42
JH		 4801 if (persistent)
4802 clear_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4803 else
4804 set_bit(HCI_CONN_FLUSH_KEY, &conn->flags);
4805
7652ff6a 4806unlock:
052b30b0 4807 hci_dev_unlock(hdev);
a9de9248
MH		 4808}
4809
3e54c589
LAD		 4810static void hci_clock_offset_evt(struct hci_dev *hdev, void *data,
4811 struct sk_buff *skb)
1da177e4 4812{
3e54c589 4813 struct hci_ev_clock_offset *ev = data;
04837f64 4814 struct hci_conn *conn;
1da177e4 4815
3e54c589 4816 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1da177e4
LT		 4817
4818 hci_dev_lock(hdev);
4819
04837f64 4820 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
1da177e4
LT		 4821 if (conn && !ev->status) {
4822 struct inquiry_entry *ie;
4823
cc11b9c1
AE		 4824 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4825 if (ie) {
1da177e4
LT		 4826 ie->data.clock_offset = ev->clock_offset;
4827 ie->timestamp = jiffies;
4828 }
4829 }
4830
4831 hci_dev_unlock(hdev);
4832}
4833
3e54c589
LAD		 4834static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data,
4835 struct sk_buff *skb)
a8746417 4836{
3e54c589 4837 struct hci_ev_pkt_type_change *ev = data;
a8746417
MH		 4838 struct hci_conn *conn;
4839
3e54c589 4840 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
a8746417
MH		 4841
4842 hci_dev_lock(hdev);
4843
4844 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
4845 if (conn && !ev->status)
4846 conn->pkt_type = __le16_to_cpu(ev->pkt_type);
4847
4848 hci_dev_unlock(hdev);
4849}
4850
3e54c589
LAD		 4851static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data,
4852 struct sk_buff *skb)
85a1e930 4853{
3e54c589 4854 struct hci_ev_pscan_rep_mode *ev = data;
85a1e930
MH		 4855 struct inquiry_entry *ie;
4856
3e54c589 4857 bt_dev_dbg(hdev, "");
85a1e930
MH		 4858
4859 hci_dev_lock(hdev);
4860
cc11b9c1
AE		 4861 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
4862 if (ie) {
85a1e930
MH		 4863 ie->data.pscan_rep_mode = ev->pscan_rep_mode;
4864 ie->timestamp = jiffies;
4865 }
4866
4867 hci_dev_unlock(hdev);
4868}
4869
3e54c589 4870static void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, void *edata,
6039aa73 4871 struct sk_buff *skb)
a9de9248 4872{
72279d17 4873 struct hci_ev_inquiry_result_rssi *ev = edata;
a9de9248 4874 struct inquiry_data data;
8d08d324
LAD		 4875 int i;
4876
72279d17 4877 bt_dev_dbg(hdev, "num_rsp %d", ev->num);
a9de9248 4878
72279d17 4879 if (!ev->num)
a9de9248
MH		 4880 return;
4881
d7a5a11d 4882 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 4883 return;
4884
a9de9248
MH		 4885 hci_dev_lock(hdev);
4886
72279d17
LAD		 4887 if (skb->len == array_size(ev->num,
4888 sizeof(struct inquiry_info_rssi_pscan))) {
8d08d324 4889 struct inquiry_info_rssi_pscan *info;
a9de9248 4890
72279d17 4891 for (i = 0; i < ev->num; i++) {
af58925c
MH		 4892 u32 flags;
4893
fee64503
LAD		 4894 info = hci_ev_skb_pull(hdev, skb,
4895 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4896 sizeof(*info));
4897 if (!info) {
4898 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4899 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
c07ba878 4900 goto unlock;
fee64503
LAD		 4901 }
4902
a9de9248
MH		 4903 bacpy(&data.bdaddr, &info->bdaddr);
4904 data.pscan_rep_mode = info->pscan_rep_mode;
4905 data.pscan_period_mode = info->pscan_period_mode;
4906 data.pscan_mode = info->pscan_mode;
4907 memcpy(data.dev_class, info->dev_class, 3);
4908 data.clock_offset = info->clock_offset;
4909 data.rssi = info->rssi;
41a96212 4910 data.ssp_mode = 0x00;
3175405b 4911
af58925c
MH		 4912 flags = hci_inquiry_cache_update(hdev, &data, false);
4913
48264f06 4914 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 4915 info->dev_class, info->rssi,
b338d917 4916 flags, NULL, 0, NULL, 0, 0);
a9de9248 4917 }
72279d17
LAD		 4918 } else if (skb->len == array_size(ev->num,
4919 sizeof(struct inquiry_info_rssi))) {
8d08d324 4920 struct inquiry_info_rssi *info;
629b49c8 4921
72279d17 4922 for (i = 0; i < ev->num; i++) {
af58925c
MH		 4923 u32 flags;
4924
fee64503
LAD		 4925 info = hci_ev_skb_pull(hdev, skb,
4926 HCI_EV_INQUIRY_RESULT_WITH_RSSI,
4927 sizeof(*info));
4928 if (!info) {
4929 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4930 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
c07ba878 4931 goto unlock;
fee64503
LAD		 4932 }
4933
a9de9248
MH		 4934 bacpy(&data.bdaddr, &info->bdaddr);
4935 data.pscan_rep_mode = info->pscan_rep_mode;
4936 data.pscan_period_mode = info->pscan_period_mode;
4937 data.pscan_mode = 0x00;
4938 memcpy(data.dev_class, info->dev_class, 3);
4939 data.clock_offset = info->clock_offset;
4940 data.rssi = info->rssi;
41a96212 4941 data.ssp_mode = 0x00;
af58925c
MH		 4942
4943 flags = hci_inquiry_cache_update(hdev, &data, false);
4944
48264f06 4945 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
04124681 4946 info->dev_class, info->rssi,
b338d917 4947 flags, NULL, 0, NULL, 0, 0);
a9de9248 4948 }
8d08d324
LAD		 4949 } else {
4950 bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x",
4951 HCI_EV_INQUIRY_RESULT_WITH_RSSI);
a9de9248 4952 }
c07ba878 4953unlock:
a9de9248
MH		 4954 hci_dev_unlock(hdev);
4955}
4956
3e54c589 4957static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data,
6039aa73 4958 struct sk_buff *skb)
a9de9248 4959{
3e54c589 4960 struct hci_ev_remote_ext_features *ev = data;
41a96212
MH		 4961 struct hci_conn *conn;
4962
3e54c589 4963 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
41a96212 4964
41a96212
MH		 4965 hci_dev_lock(hdev);
4966
4967 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
ccd556fe
JH		 4968 if (!conn)
4969 goto unlock;
41a96212 4970
cad718ed
JH		 4971 if (ev->page < HCI_MAX_PAGES)
4972 memcpy(conn->features[ev->page], ev->features, 8);
4973
ccd556fe
JH		 4974 if (!ev->status && ev->page == 0x01) {
4975 struct inquiry_entry *ie;
41a96212 4976
cc11b9c1
AE		 4977 ie = hci_inquiry_cache_lookup(hdev, &conn->dst);
4978 if (ie)
02b7cc62 4979 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
769be974 4980
bbb0eada 4981 if (ev->features[0] & LMP_HOST_SSP) {
58a681ef 4982 set_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
bbb0eada
JK		 4983 } else {
4984 /* It is mandatory by the Bluetooth specification that
4985 * Extended Inquiry Results are only used when Secure
4986 * Simple Pairing is enabled, but some devices violate
4987 * this.
4988 *
4989 * To make these devices work, the internal SSP
4990 * enabled flag needs to be cleared if the remote host
4991 * features do not indicate SSP support */
4992 clear_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
4993 }
eb9a8f3f
MH		 4994
4995 if (ev->features[0] & LMP_HOST_SC)
4996 set_bit(HCI_CONN_SC_ENABLED, &conn->flags);
ccd556fe
JH		 4997 }
4998
4999 if (conn->state != BT_CONFIG)
5000 goto unlock;
5001
671267bf 5002 if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
127178d2
JH		 5003 struct hci_cp_remote_name_req cp;
5004 memset(&cp, 0, sizeof(cp));
5005 bacpy(&cp.bdaddr, &conn->dst);
5006 cp.pscan_rep_mode = 0x02;
5007 hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, sizeof(cp), &cp);
b644ba33 5008 } else if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1c6ed31b 5009 mgmt_device_connected(hdev, conn, NULL, 0);
392599b9 5010
127178d2 5011 if (!hci_outgoing_auth_needed(hdev, conn)) {
ccd556fe 5012 conn->state = BT_CONNECTED;
539c496d 5013 hci_connect_cfm(conn, ev->status);
76a68ba0 5014 hci_conn_drop(conn);
41a96212
MH		 5015 }
5016
ccd556fe 5017unlock:
41a96212 5018 hci_dev_unlock(hdev);
a9de9248
MH		 5019}
5020
3e54c589 5021static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data,
6039aa73 5022 struct sk_buff *skb)
a9de9248 5023{
3e54c589 5024 struct hci_ev_sync_conn_complete *ev = data;
b6a0dc82 5025 struct hci_conn *conn;
c86cc5a3 5026 u8 status = ev->status;
b6a0dc82 5027
3afee211
SH		 5028 switch (ev->link_type) {
5029 case SCO_LINK:
5030 case ESCO_LINK:
5031 break;
5032 default:
5033 /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type
5034 * for HCI_Synchronous_Connection_Complete is limited to
5035 * either SCO or eSCO
5036 */
5037 bt_dev_err(hdev, "Ignoring connect complete event for invalid link type");
5038 return;
5039 }
5040
c86cc5a3 5041 bt_dev_dbg(hdev, "status 0x%2.2x", status);
b6a0dc82
MH		 5042
5043 hci_dev_lock(hdev);
5044
5045 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
9dc0a3af
MH		 5046 if (!conn) {
5047 if (ev->link_type == ESCO_LINK)
5048 goto unlock;
5049
618353b1
KP		 5050 /* When the link type in the event indicates SCO connection
5051 * and lookup of the connection object fails, then check
5052 * if an eSCO connection object exists.
5053 *
5054 * The core limits the synchronous connections to either
5055 * SCO or eSCO. The eSCO connection is preferred and tried
5056 * to be setup first and until successfully established,
5057 * the link type will be hinted as eSCO.
5058 */
9dc0a3af
MH		 5059 conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, &ev->bdaddr);
5060 if (!conn)
5061 goto unlock;
9dc0a3af 5062 }
b6a0dc82 5063
d5ebaa7c
SH		 5064 /* The HCI_Synchronous_Connection_Complete event is only sent once per connection.
5065 * Processing it more than once per connection can corrupt kernel memory.
5066 *
5067 * As the connection handle is set here for the first time, it indicates
5068 * whether the connection is already set up.
5069 */
9f78191c 5070 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
d5ebaa7c
SH		 5071 bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection");
5072 goto unlock;
5073 }
5074
c86cc5a3 5075 switch (status) {
732547f9 5076 case 0x00:
16e3b642
LAD		 5077 status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle));
5078 if (status) {
c86cc5a3
LAD		 5079 conn->state = BT_CLOSED;
5080 break;
5081 }
5082
b6a0dc82 5083 conn->state = BT_CONNECTED;
618353b1 5084 conn->type = ev->link_type;
7d0db0a3 5085
23b9ceb7 5086 hci_debugfs_create_conn(conn);
7d0db0a3 5087 hci_conn_add_sysfs(conn);
732547f9
MH		 5088 break;
5089
81218d20 5090 case 0x10: /* Connection Accept Timeout */
1a4c958c 5091 case 0x0d: /* Connection Rejected due to Limited Resources */
705e5711 5092 case 0x11: /* Unsupported Feature or Parameter Value */
732547f9 5093 case 0x1c: /* SCO interval rejected */
1038a00b 5094 case 0x1a: /* Unsupported Remote Feature */
56b5453a 5095 case 0x1e: /* Invalid LMP Parameters */
732547f9 5096 case 0x1f: /* Unspecified error */
27539bc4 5097 case 0x20: /* Unsupported LMP Parameter value */
2dea632f 5098 if (conn->out) {
732547f9
MH		 5099 conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |
5100 (hdev->esco_type & EDR_ESCO_MASK);
06149746 5101 if (hci_setup_sync(conn, conn->parent->handle))
2dea632f 5102 goto unlock;
732547f9 5103 }
19186c7b 5104 fallthrough;
732547f9
MH		 5105
5106 default:
b6a0dc82 5107 conn->state = BT_CLOSED;
732547f9
MH		 5108 break;
5109 }
b6a0dc82 5110
1f8330ea 5111 bt_dev_dbg(hdev, "SCO connected with air mode: %02x", ev->air_mode);
f4f9fa0c
C		 5112 /* Notify only in case of SCO over HCI transport data path which
5113 * is zero and non-zero value shall be non-HCI transport data path
5114 */
a27c519a
JL		 5115 if (conn->codec.data_path == 0 && hdev->notify) {
5116 switch (ev->air_mode) {
5117 case 0x02:
5118 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_CVSD);
5119 break;
5120 case 0x03:
5121 hdev->notify(hdev, HCI_NOTIFY_ENABLE_SCO_TRANSP);
5122 break;
5123 }
f4f9fa0c
C		 5124 }
5125
c86cc5a3
LAD		 5126 hci_connect_cfm(conn, status);
5127 if (status)
b6a0dc82
MH		 5128 hci_conn_del(conn);
5129
5130unlock:
5131 hci_dev_unlock(hdev);
a9de9248
MH		 5132}
5133
efdcf8e3
MH		 5134static inline size_t eir_get_length(u8 *eir, size_t eir_len)
5135{
5136 size_t parsed = 0;
5137
5138 while (parsed < eir_len) {
5139 u8 field_len = eir[0];
5140
5141 if (field_len == 0)
5142 return parsed;
5143
5144 parsed += field_len + 1;
5145 eir += field_len + 1;
5146 }
5147
5148 return eir_len;
5149}
5150
3e54c589 5151static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata,
6039aa73 5152 struct sk_buff *skb)
1da177e4 5153{
3e54c589 5154 struct hci_ev_ext_inquiry_result *ev = edata;
a9de9248 5155 struct inquiry_data data;
9d939d94 5156 size_t eir_len;
70a6b8de 5157 int i;
1da177e4 5158
70a6b8de
LAD		 5159 if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT,
5160 flex_array_size(ev, info, ev->num)))
5161 return;
5162
3e54c589 5163 bt_dev_dbg(hdev, "num %d", ev->num);
70a6b8de
LAD		 5164
5165 if (!ev->num)
a9de9248 5166 return;
1da177e4 5167
d7a5a11d 5168 if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))
1519cc17
AG		 5169 return;
5170
a9de9248
MH		 5171 hci_dev_lock(hdev);
5172
70a6b8de
LAD		 5173 for (i = 0; i < ev->num; i++) {
5174 struct extended_inquiry_info *info = &ev->info[i];
af58925c
MH		 5175 u32 flags;
5176 bool name_known;
561aafbc 5177
a9de9248 5178 bacpy(&data.bdaddr, &info->bdaddr);
138d22ef
SJ		 5179 data.pscan_rep_mode = info->pscan_rep_mode;
5180 data.pscan_period_mode = info->pscan_period_mode;
5181 data.pscan_mode = 0x00;
a9de9248 5182 memcpy(data.dev_class, info->dev_class, 3);
138d22ef
SJ		 5183 data.clock_offset = info->clock_offset;
5184 data.rssi = info->rssi;
41a96212 5185 data.ssp_mode = 0x01;
561aafbc 5186
d7a5a11d 5187 if (hci_dev_test_flag(hdev, HCI_MGMT))
0d3b7f64
JH		 5188 name_known = eir_get_data(info->data,
5189 sizeof(info->data),
5190 EIR_NAME_COMPLETE, NULL);
561aafbc
JH		 5191 else
5192 name_known = true;
5193
af58925c
MH		 5194 flags = hci_inquiry_cache_update(hdev, &data, name_known);
5195
9d939d94 5196 eir_len = eir_get_length(info->data, sizeof(info->data));
af58925c 5197
48264f06 5198 mgmt_device_found(hdev, &info->bdaddr, ACL_LINK, 0x00,
af58925c 5199 info->dev_class, info->rssi,
b338d917 5200 flags, info->data, eir_len, NULL, 0, 0);
a9de9248
MH		 5201 }
5202
5203 hci_dev_unlock(hdev);
5204}
1da177e4 5205
3e54c589 5206static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data,
1c2e0041
JH		 5207 struct sk_buff *skb)
5208{
3e54c589 5209 struct hci_ev_key_refresh_complete *ev = data;
1c2e0041
JH		 5210 struct hci_conn *conn;
5211
3e54c589
LAD		 5212 bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x", ev->status,
5213 __le16_to_cpu(ev->handle));
1c2e0041
JH		 5214
5215 hci_dev_lock(hdev);
5216
5217 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
5218 if (!conn)
5219 goto unlock;
5220
9eb1fbfa
JH		 5221 /* For BR/EDR the necessary steps are taken through the
5222 * auth_complete event.
5223 */
5224 if (conn->type != LE_LINK)
5225 goto unlock;
5226
1c2e0041
JH		 5227 if (!ev->status)
5228 conn->sec_level = conn->pending_sec_level;
5229
5230 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
5231
5232 if (ev->status && conn->state == BT_CONNECTED) {
bed71748 5233 hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE);
76a68ba0 5234 hci_conn_drop(conn);
1c2e0041
JH		 5235 goto unlock;
5236 }
5237
5238 if (conn->state == BT_CONFIG) {
5239 if (!ev->status)
5240 conn->state = BT_CONNECTED;
5241
539c496d 5242 hci_connect_cfm(conn, ev->status);
76a68ba0 5243 hci_conn_drop(conn);
1c2e0041
JH		 5244 } else {
5245 hci_auth_cfm(conn, ev->status);
5246
5247 hci_conn_hold(conn);
5248 conn->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 5249 hci_conn_drop(conn);
1c2e0041
JH		 5250 }
5251
5252unlock:
5253 hci_dev_unlock(hdev);
5254}
5255
6039aa73 5256static u8 hci_get_auth_req(struct hci_conn *conn)
17fa4b9d 5257{
17fa4b9d 5258 /* If remote requests no-bonding follow that lead */
acabae96
MA		 5259 if (conn->remote_auth == HCI_AT_NO_BONDING ||
5260 conn->remote_auth == HCI_AT_NO_BONDING_MITM)
58797bf7 5261 return conn->remote_auth | (conn->auth_type & 0x01);
17fa4b9d 5262
b7f94c88
MA		 5263 /* If both remote and local have enough IO capabilities, require
5264 * MITM protection
5265 */
5266 if (conn->remote_cap != HCI_IO_NO_INPUT_OUTPUT &&
5267 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT)
5268 return conn->remote_auth | 0x01;
5269
7e74170a
TM		 5270 /* No MITM protection possible so ignore remote requirement */
5271 return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01);
17fa4b9d
JH		 5272}
5273
a83ed81e
MH		 5274static u8 bredr_oob_data_present(struct hci_conn *conn)
5275{
5276 struct hci_dev *hdev = conn->hdev;
5277 struct oob_data *data;
5278
5279 data = hci_find_remote_oob_data(hdev, &conn->dst, BDADDR_BREDR);
5280 if (!data)
5281 return 0x00;
5282
455c2ff0
MH		 5283 if (bredr_sc_enabled(hdev)) {
5284 /* When Secure Connections is enabled, then just
5285 * return the present value stored with the OOB
5286 * data. The stored value contains the right present
5287 * information. However it can only be trusted when
5288 * not in Secure Connection Only mode.
5289 */
5290 if (!hci_dev_test_flag(hdev, HCI_SC_ONLY))
5291 return data->present;
659c7fb0 5292
455c2ff0
MH		 5293 /* When Secure Connections Only mode is enabled, then
5294 * the P-256 values are required. If they are not
5295 * available, then do not declare that OOB data is
5296 * present.
659c7fb0 5297 */
b5412606
LAD		 5298 if (!crypto_memneq(data->rand256, ZERO_KEY, 16) ||
5299 !crypto_memneq(data->hash256, ZERO_KEY, 16))
659c7fb0
MH		 5300 return 0x00;
5301
455c2ff0 5302 return 0x02;
659c7fb0 5303 }
a83ed81e 5304
455c2ff0
MH		 5305 /* When Secure Connections is not enabled or actually
5306 * not supported by the hardware, then check that if
5307 * P-192 data values are present.
5308 */
b5412606
LAD		 5309 if (!crypto_memneq(data->rand192, ZERO_KEY, 16) ||
5310 !crypto_memneq(data->hash192, ZERO_KEY, 16))
455c2ff0
MH		 5311 return 0x00;
5312
5313 return 0x01;
a83ed81e
MH		 5314}
5315
3e54c589
LAD		 5316static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data,
5317 struct sk_buff *skb)
0493684e 5318{
3e54c589 5319 struct hci_ev_io_capa_request *ev = data;
0493684e
MH		 5320 struct hci_conn *conn;
5321
3e54c589 5322 bt_dev_dbg(hdev, "");
0493684e
MH		 5323
5324 hci_dev_lock(hdev);
5325
5326 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
c7f59461 5327 if (!conn || !hci_conn_ssp_enabled(conn))
03b555e1
JH		 5328 goto unlock;
5329
5330 hci_conn_hold(conn);
5331
d7a5a11d 5332 if (!hci_dev_test_flag(hdev, HCI_MGMT))
03b555e1
JH		 5333 goto unlock;
5334
2f407f0a
JH		 5335 /* Allow pairing if we're pairable, the initiators of the
5336 * pairing or if the remote is not requesting bonding.
5337 */
d7a5a11d 5338 if (hci_dev_test_flag(hdev, HCI_BONDABLE) ||
2f407f0a 5339 test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) ||
807deac2 5340 (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) {
17fa4b9d
JH		 5341 struct hci_cp_io_capability_reply cp;
5342
5343 bacpy(&cp.bdaddr, &ev->bdaddr);
7a7f1e7c
HG		 5344 /* Change the IO capability from KeyboardDisplay
5345 * to DisplayYesNo as it is not supported by BT spec. */
5346 cp.capability = (conn->io_capability == 0x04) ?
a767631a 5347 HCI_IO_DISPLAY_YESNO : conn->io_capability;
b7f94c88
MA		 5348
5349 /* If we are initiators, there is no remote information yet */
5350 if (conn->remote_auth == 0xff) {
b16c6604 5351 /* Request MITM protection if our IO caps allow it
4ad51a75 5352 * except for the no-bonding case.
b16c6604 5353 */
6fd6b915 5354 if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
9f743d74 5355 conn->auth_type != HCI_AT_NO_BONDING)
6c53823a 5356 conn->auth_type |= 0x01;
b7f94c88
MA		 5357 } else {
5358 conn->auth_type = hci_get_auth_req(conn);
b7f94c88 5359 }
17fa4b9d 5360
82c295b1
JH		 5361 /* If we're not bondable, force one of the non-bondable
5362 * authentication requirement values.
5363 */
d7a5a11d 5364 if (!hci_dev_test_flag(hdev, HCI_BONDABLE))
82c295b1
JH		 5365 conn->auth_type &= HCI_AT_NO_BONDING_MITM;
5366
5367 cp.authentication = conn->auth_type;
a83ed81e 5368 cp.oob_data = bredr_oob_data_present(conn);
ce85ee13 5369
17fa4b9d 5370 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY,
807deac2 5371 sizeof(cp), &cp);
03b555e1
JH		 5372 } else {
5373 struct hci_cp_io_capability_neg_reply cp;
5374
5375 bacpy(&cp.bdaddr, &ev->bdaddr);
9f5a0d7b 5376 cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED;
0493684e 5377
03b555e1 5378 hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY,
807deac2 5379 sizeof(cp), &cp);
03b555e1
JH		 5380 }
5381
5382unlock:
5383 hci_dev_unlock(hdev);
5384}
5385
3e54c589
LAD		 5386static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data,
5387 struct sk_buff *skb)
03b555e1 5388{
3e54c589 5389 struct hci_ev_io_capa_reply *ev = data;
03b555e1
JH		 5390 struct hci_conn *conn;
5391
3e54c589 5392 bt_dev_dbg(hdev, "");
03b555e1
JH		 5393
5394 hci_dev_lock(hdev);
5395
5396 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5397 if (!conn)
5398 goto unlock;
5399
03b555e1 5400 conn->remote_cap = ev->capability;
03b555e1
JH		 5401 conn->remote_auth = ev->authentication;
5402
5403unlock:
0493684e
MH		 5404 hci_dev_unlock(hdev);
5405}
5406
3e54c589 5407static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data,
6039aa73 5408 struct sk_buff *skb)
a5c29683 5409{
3e54c589 5410 struct hci_ev_user_confirm_req *ev = data;
55bc1a37 5411 int loc_mitm, rem_mitm, confirm_hint = 0;
7a828908 5412 struct hci_conn *conn;
a5c29683 5413
3e54c589 5414 bt_dev_dbg(hdev, "");
a5c29683
JH		 5415
5416 hci_dev_lock(hdev);
5417
d7a5a11d 5418 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7a828908 5419 goto unlock;
a5c29683 5420
7a828908
JH		 5421 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5422 if (!conn)
5423 goto unlock;
5424
5425 loc_mitm = (conn->auth_type & 0x01);
5426 rem_mitm = (conn->remote_auth & 0x01);
5427
5428 /* If we require MITM but the remote device can't provide that
6c53823a
JH		 5429 * (it has NoInputNoOutput) then reject the confirmation
5430 * request. We check the security level here since it doesn't
5431 * necessarily match conn->auth_type.
6fd6b915 5432 */
6c53823a
JH		 5433 if (conn->pending_sec_level > BT_SECURITY_MEDIUM &&
5434 conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) {
3e54c589 5435 bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM");
7a828908 5436 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY,
807deac2 5437 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 5438 goto unlock;
5439 }
5440
5441 /* If no side requires MITM protection; auto-accept */
a767631a
MA		 5442 if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) &&
5443 (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) {
55bc1a37
JH		 5444
5445 /* If we're not the initiators request authorization to
5446 * proceed from user space (mgmt_user_confirm with
ba15a58b 5447 * confirm_hint set to 1). The exception is if neither
02f3e254
JH		 5448 * side had MITM or if the local IO capability is
5449 * NoInputNoOutput, in which case we do auto-accept
ba15a58b
JH		 5450 */
5451 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) &&
02f3e254 5452 conn->io_capability != HCI_IO_NO_INPUT_OUTPUT &&
ba15a58b 5453 (loc_mitm || rem_mitm)) {
3e54c589 5454 bt_dev_dbg(hdev, "Confirming auto-accept as acceptor");
55bc1a37
JH		 5455 confirm_hint = 1;
5456 goto confirm;
5457 }
5458
cee5f20f
HC		 5459 /* If there already exists link key in local host, leave the
5460 * decision to user space since the remote device could be
5461 * legitimate or malicious.
5462 */
5463 if (hci_find_link_key(hdev, &ev->bdaddr)) {
5464 bt_dev_dbg(hdev, "Local host already has link key");
5465 confirm_hint = 1;
5466 goto confirm;
5467 }
5468
9f61656a 5469 BT_DBG("Auto-accept of user confirmation with %ums delay",
807deac2 5470 hdev->auto_accept_delay);
9f61656a
JH		 5471
5472 if (hdev->auto_accept_delay > 0) {
5473 int delay = msecs_to_jiffies(hdev->auto_accept_delay);
7bc18d9d
JH		 5474 queue_delayed_work(conn->hdev->workqueue,
5475 &conn->auto_accept_work, delay);
9f61656a
JH		 5476 goto unlock;
5477 }
5478
7a828908 5479 hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY,
807deac2 5480 sizeof(ev->bdaddr), &ev->bdaddr);
7a828908
JH		 5481 goto unlock;
5482 }
5483
55bc1a37 5484confirm:
39adbffe
JH		 5485 mgmt_user_confirm_request(hdev, &ev->bdaddr, ACL_LINK, 0,
5486 le32_to_cpu(ev->passkey), confirm_hint);
7a828908
JH		 5487
5488unlock:
a5c29683
JH		 5489 hci_dev_unlock(hdev);
5490}
5491
3e54c589 5492static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data,
6039aa73 5493 struct sk_buff *skb)
1143d458 5494{
3e54c589 5495 struct hci_ev_user_passkey_req *ev = data;
1143d458 5496
3e54c589 5497 bt_dev_dbg(hdev, "");
1143d458 5498
d7a5a11d 5499 if (hci_dev_test_flag(hdev, HCI_MGMT))
272d90df 5500 mgmt_user_passkey_request(hdev, &ev->bdaddr, ACL_LINK, 0);
1143d458
BG		 5501}
5502
3e54c589 5503static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data,
92a25256
JH		 5504 struct sk_buff *skb)
5505{
3e54c589 5506 struct hci_ev_user_passkey_notify *ev = data;
92a25256
JH		 5507 struct hci_conn *conn;
5508
3e54c589 5509 bt_dev_dbg(hdev, "");
92a25256
JH		 5510
5511 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5512 if (!conn)
5513 return;
5514
5515 conn->passkey_notify = __le32_to_cpu(ev->passkey);
5516 conn->passkey_entered = 0;
5517
d7a5a11d 5518 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 5519 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5520 conn->dst_type, conn->passkey_notify,
5521 conn->passkey_entered);
5522}
5523
3e54c589
LAD		 5524static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data,
5525 struct sk_buff *skb)
92a25256 5526{
3e54c589 5527 struct hci_ev_keypress_notify *ev = data;
92a25256
JH		 5528 struct hci_conn *conn;
5529
3e54c589 5530 bt_dev_dbg(hdev, "");
92a25256
JH		 5531
5532 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5533 if (!conn)
5534 return;
5535
5536 switch (ev->type) {
5537 case HCI_KEYPRESS_STARTED:
5538 conn->passkey_entered = 0;
5539 return;
5540
5541 case HCI_KEYPRESS_ENTERED:
5542 conn->passkey_entered++;
5543 break;
5544
5545 case HCI_KEYPRESS_ERASED:
5546 conn->passkey_entered--;
5547 break;
5548
5549 case HCI_KEYPRESS_CLEARED:
5550 conn->passkey_entered = 0;
5551 break;
5552
5553 case HCI_KEYPRESS_COMPLETED:
5554 return;
5555 }
5556
d7a5a11d 5557 if (hci_dev_test_flag(hdev, HCI_MGMT))
92a25256
JH		 5558 mgmt_user_passkey_notify(hdev, &conn->dst, conn->type,
5559 conn->dst_type, conn->passkey_notify,
5560 conn->passkey_entered);
5561}
5562
3e54c589 5563static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data,
6039aa73 5564 struct sk_buff *skb)
0493684e 5565{
3e54c589 5566 struct hci_ev_simple_pair_complete *ev = data;
0493684e
MH		 5567 struct hci_conn *conn;
5568
3e54c589 5569 bt_dev_dbg(hdev, "");
0493684e
MH		 5570
5571 hci_dev_lock(hdev);
5572
5573 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
c7f59461 5574 if (!conn || !hci_conn_ssp_enabled(conn))
2a611692
JH		 5575 goto unlock;
5576
c1d4fa7a
JH		 5577 /* Reset the authentication requirement to unknown */
5578 conn->remote_auth = 0xff;
5579
2a611692
JH		 5580 /* To avoid duplicate auth_failed events to user space we check
5581 * the HCI_CONN_AUTH_PEND flag which will be set if we
5582 * initiated the authentication. A traditional auth_complete
5583 * event gets always produced as initiator and is also mapped to
5584 * the mgmt_auth_failed event */
fa1bd918 5585 if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status)
e1e930f5 5586 mgmt_auth_failed(conn, ev->status);
0493684e 5587
76a68ba0 5588 hci_conn_drop(conn);
2a611692
JH		 5589
5590unlock:
0493684e
MH		 5591 hci_dev_unlock(hdev);
5592}
5593
3e54c589 5594static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data,
6039aa73 5595 struct sk_buff *skb)
41a96212 5596{
3e54c589 5597 struct hci_ev_remote_host_features *ev = data;
41a96212 5598 struct inquiry_entry *ie;
cad718ed 5599 struct hci_conn *conn;
41a96212 5600
3e54c589 5601 bt_dev_dbg(hdev, "");
41a96212
MH		 5602
5603 hci_dev_lock(hdev);
5604
cad718ed
JH		 5605 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
5606 if (conn)
5607 memcpy(conn->features[1], ev->features, 8);
5608
cc11b9c1
AE		 5609 ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr);
5610 if (ie)
02b7cc62 5611 ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP);
41a96212
MH		 5612
5613 hci_dev_unlock(hdev);
5614}
5615
3e54c589 5616static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata,
6039aa73 5617 struct sk_buff *skb)
2763eda6 5618{
3e54c589 5619 struct hci_ev_remote_oob_data_request *ev = edata;
2763eda6
SJ		 5620 struct oob_data *data;
5621
3e54c589 5622 bt_dev_dbg(hdev, "");
2763eda6
SJ		 5623
5624 hci_dev_lock(hdev);
5625
d7a5a11d 5626 if (!hci_dev_test_flag(hdev, HCI_MGMT))
e1ba1f15
SJ		 5627 goto unlock;
5628
6928a924 5629 data = hci_find_remote_oob_data(hdev, &ev->bdaddr, BDADDR_BREDR);
6665d057
MH		 5630 if (!data) {
5631 struct hci_cp_remote_oob_data_neg_reply cp;
519ca9d0 5632
6665d057
MH		 5633 bacpy(&cp.bdaddr, &ev->bdaddr);
5634 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY,
5635 sizeof(cp), &cp);
5636 goto unlock;
5637 }
2763eda6 5638
6665d057
MH		 5639 if (bredr_sc_enabled(hdev)) {
5640 struct hci_cp_remote_oob_ext_data_reply cp;
519ca9d0 5641
6665d057 5642 bacpy(&cp.bdaddr, &ev->bdaddr);
d7a5a11d 5643 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6665d057
MH		 5644 memset(cp.hash192, 0, sizeof(cp.hash192));
5645 memset(cp.rand192, 0, sizeof(cp.rand192));
5646 } else {
5647 memcpy(cp.hash192, data->hash192, sizeof(cp.hash192));
5648 memcpy(cp.rand192, data->rand192, sizeof(cp.rand192));
519ca9d0 5649 }
6665d057
MH		 5650 memcpy(cp.hash256, data->hash256, sizeof(cp.hash256));
5651 memcpy(cp.rand256, data->rand256, sizeof(cp.rand256));
5652
5653 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_EXT_DATA_REPLY,
5654 sizeof(cp), &cp);
2763eda6 5655 } else {
6665d057 5656 struct hci_cp_remote_oob_data_reply cp;
2763eda6
SJ		 5657
5658 bacpy(&cp.bdaddr, &ev->bdaddr);
6665d057
MH		 5659 memcpy(cp.hash, data->hash192, sizeof(cp.hash));
5660 memcpy(cp.rand, data->rand192, sizeof(cp.rand));
5661
5662 hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_REPLY,
519ca9d0 5663 sizeof(cp), &cp);
2763eda6
SJ		 5664 }
5665
e1ba1f15 5666unlock:
2763eda6
SJ		 5667 hci_dev_unlock(hdev);
5668}
5669
a77a6a14 5670#if IS_ENABLED(CONFIG_BT_HS)
3e54c589
LAD		 5671static void hci_chan_selected_evt(struct hci_dev *hdev, void *data,
5672 struct sk_buff *skb)
a77a6a14 5673{
3e54c589 5674 struct hci_ev_channel_selected *ev = data;
a77a6a14
AW		 5675 struct hci_conn *hcon;
5676
3e54c589 5677 bt_dev_dbg(hdev, "handle 0x%2.2x", ev->phy_handle);
a77a6a14
AW		 5678
5679 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5680 if (!hcon)
5681 return;
5682
5683 amp_read_loc_assoc_final_data(hdev, hcon);
5684}
5685
3e54c589 5686static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data,
d5e91192
AE		 5687 struct sk_buff *skb)
5688{
3e54c589 5689 struct hci_ev_phy_link_complete *ev = data;
d5e91192
AE		 5690 struct hci_conn *hcon, *bredr_hcon;
5691
3e54c589
LAD		 5692 bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x", ev->phy_handle,
5693 ev->status);
d5e91192
AE		 5694
5695 hci_dev_lock(hdev);
5696
5697 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
3ae1dc75
SS		 5698 if (!hcon)
5699 goto unlock;
d5e91192 5700
3ae1dc75
SS		 5701 if (!hcon->amp_mgr)
5702 goto unlock;
6dfccd13 5703
d5e91192
AE		 5704 if (ev->status) {
5705 hci_conn_del(hcon);
3ae1dc75 5706 goto unlock;
d5e91192
AE		 5707 }
5708
5709 bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon;
5710
5711 hcon->state = BT_CONNECTED;
5712 bacpy(&hcon->dst, &bredr_hcon->dst);
5713
5714 hci_conn_hold(hcon);
5715 hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
76a68ba0 5716 hci_conn_drop(hcon);
d5e91192 5717
23b9ceb7 5718 hci_debugfs_create_conn(hcon);
d5e91192
AE		 5719 hci_conn_add_sysfs(hcon);
5720
cf70ff22 5721 amp_physical_cfm(bredr_hcon, hcon);
d5e91192 5722
3ae1dc75 5723unlock:
cf70ff22 5724 hci_dev_unlock(hdev);
d5e91192
AE		 5725}
5726
3e54c589
LAD		 5727static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data,
5728 struct sk_buff *skb)
27695fb4 5729{
3e54c589 5730 struct hci_ev_logical_link_complete *ev = data;
27695fb4
AE		 5731 struct hci_conn *hcon;
5732 struct hci_chan *hchan;
5733 struct amp_mgr *mgr;
5734
3e54c589
LAD		 5735 bt_dev_dbg(hdev, "log_handle 0x%4.4x phy_handle 0x%2.2x status 0x%2.2x",
5736 le16_to_cpu(ev->handle), ev->phy_handle, ev->status);
27695fb4
AE		 5737
5738 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
5739 if (!hcon)
5740 return;
5741
5742 /* Create AMP hchan */
5743 hchan = hci_chan_create(hcon);
5744 if (!hchan)
5745 return;
5746
5747 hchan->handle = le16_to_cpu(ev->handle);
5c4c8c95 5748 hchan->amp = true;
27695fb4
AE		 5749
5750 BT_DBG("hcon %p mgr %p hchan %p", hcon, hcon->amp_mgr, hchan);
5751
5752 mgr = hcon->amp_mgr;
5753 if (mgr && mgr->bredr_chan) {
5754 struct l2cap_chan *bredr_chan = mgr->bredr_chan;
5755
5756 l2cap_chan_lock(bredr_chan);
5757
5758 bredr_chan->conn->mtu = hdev->block_mtu;
5759 l2cap_logical_cfm(bredr_chan, hchan, 0);
5760 hci_conn_hold(hcon);
5761
5762 l2cap_chan_unlock(bredr_chan);
5763 }
5764}
5765
3e54c589 5766static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data,
606e2a10
AE		 5767 struct sk_buff *skb)
5768{
3e54c589 5769 struct hci_ev_disconn_logical_link_complete *ev = data;
606e2a10
AE		 5770 struct hci_chan *hchan;
5771
3e54c589
LAD		 5772 bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x",
5773 le16_to_cpu(ev->handle), ev->status);
606e2a10
AE		 5774
5775 if (ev->status)
5776 return;
5777
5778 hci_dev_lock(hdev);
5779
5780 hchan = hci_chan_lookup_handle(hdev, le16_to_cpu(ev->handle));
5c4c8c95 5781 if (!hchan || !hchan->amp)
606e2a10
AE		 5782 goto unlock;
5783
5784 amp_destroy_logical_link(hchan, ev->reason);
5785
5786unlock:
5787 hci_dev_unlock(hdev);
5788}
5789
3e54c589 5790static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data,
9eef6b3a
AE		 5791 struct sk_buff *skb)
5792{
3e54c589 5793 struct hci_ev_disconn_phy_link_complete *ev = data;
9eef6b3a
AE		 5794 struct hci_conn *hcon;
5795
3e54c589 5796 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
9eef6b3a
AE		 5797
5798 if (ev->status)
5799 return;
5800
5801 hci_dev_lock(hdev);
5802
5803 hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle);
f63d24ba 5804 if (hcon && hcon->type == AMP_LINK) {
9eef6b3a 5805 hcon->state = BT_CLOSED;
f63d24ba 5806 hci_disconn_cfm(hcon, ev->reason);
9eef6b3a
AE		 5807 hci_conn_del(hcon);
5808 }
5809
5810 hci_dev_unlock(hdev);
5811}
a77a6a14 5812#endif
9eef6b3a 5813
cafae4cd
LAD		 5814static void le_conn_update_addr(struct hci_conn *conn, bdaddr_t *bdaddr,
5815 u8 bdaddr_type, bdaddr_t *local_rpa)
5816{
5817 if (conn->out) {
5818 conn->dst_type = bdaddr_type;
5819 conn->resp_addr_type = bdaddr_type;
5820 bacpy(&conn->resp_addr, bdaddr);
5821
5822 /* Check if the controller has set a Local RPA then it must be
5823 * used instead or hdev->rpa.
5824 */
5825 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5826 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5827 bacpy(&conn->init_addr, local_rpa);
5828 } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) {
5829 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5830 bacpy(&conn->init_addr, &conn->hdev->rpa);
5831 } else {
5832 hci_copy_identity_address(conn->hdev, &conn->init_addr,
5833 &conn->init_addr_type);
5834 }
5835 } else {
5836 conn->resp_addr_type = conn->hdev->adv_addr_type;
5837 /* Check if the controller has set a Local RPA then it must be
5838 * used instead or hdev->rpa.
5839 */
5840 if (local_rpa && bacmp(local_rpa, BDADDR_ANY)) {
5841 conn->resp_addr_type = ADDR_LE_DEV_RANDOM;
5842 bacpy(&conn->resp_addr, local_rpa);
5843 } else if (conn->hdev->adv_addr_type == ADDR_LE_DEV_RANDOM) {
5844 /* In case of ext adv, resp_addr will be updated in
5845 * Adv Terminated event.
5846 */
5847 if (!ext_adv_capable(conn->hdev))
5848 bacpy(&conn->resp_addr,
5849 &conn->hdev->random_addr);
5850 } else {
5851 bacpy(&conn->resp_addr, &conn->hdev->bdaddr);
5852 }
5853
5854 conn->init_addr_type = bdaddr_type;
5855 bacpy(&conn->init_addr, bdaddr);
5856
5857 /* For incoming connections, set the default minimum
5858 * and maximum connection interval. They will be used
5859 * to check if the parameters are in range and if not
5860 * trigger the connection update procedure.
5861 */
5862 conn->le_conn_min_interval = conn->hdev->le_conn_min_interval;
5863 conn->le_conn_max_interval = conn->hdev->le_conn_max_interval;
5864 }
5865}
5866
d12fb056 5867static void le_conn_complete_evt(struct hci_dev *hdev, u8 status,
cafae4cd
LAD		 5868 bdaddr_t *bdaddr, u8 bdaddr_type,
5869 bdaddr_t *local_rpa, u8 role, u16 handle,
5870 u16 interval, u16 latency,
5871 u16 supervision_timeout)
fcd89c09 5872{
912b42ef 5873 struct hci_conn_params *params;
fcd89c09 5874 struct hci_conn *conn;
68d6f6de 5875 struct smp_irk *irk;
837d502e 5876 u8 addr_type;
fcd89c09 5877
fcd89c09
VT		 5878 hci_dev_lock(hdev);
5879
fbd96c15
JH		 5880 /* All controllers implicitly stop advertising in the event of a
5881 * connection, so ensure that the state bit is cleared.
5882 */
a358dc11 5883 hci_dev_clear_flag(hdev, HCI_LE_ADV);
fbd96c15 5884
53562665 5885 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
b62f328b 5886 if (!conn) {
aef2aa4f
LAD		 5887 /* In case of error status and there is no connection pending
5888 * just unlock as there is nothing to cleanup.
5889 */
5890 if (status)
5891 goto unlock;
5892
181a42ed 5893 conn = hci_conn_add_unset(hdev, LE_LINK, bdaddr, role);
b62f328b 5894 if (!conn) {
2064ee33 5895 bt_dev_err(hdev, "no memory for new connection");
230fd16a 5896 goto unlock;
b62f328b 5897 }
29b7988a 5898
d12fb056 5899 conn->dst_type = bdaddr_type;
b9b343d2 5900
cb1d68f7 5901 /* If we didn't have a hci_conn object previously
74be523c 5902 * but we're in central role this must be something
3d4f9c00 5903 * initiated using an accept list. Since accept list based
cb1d68f7
JH		 5904 * connections are not "first class citizens" we don't
5905 * have full tracking of them. Therefore, we go ahead
5906 * with a "best effort" approach of determining the
5907 * initiator address based on the HCI_PRIVACY flag.
5908 */
5909 if (conn->out) {
d12fb056
JK		 5910 conn->resp_addr_type = bdaddr_type;
5911 bacpy(&conn->resp_addr, bdaddr);
d7a5a11d 5912 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
cb1d68f7
JH		 5913 conn->init_addr_type = ADDR_LE_DEV_RANDOM;
5914 bacpy(&conn->init_addr, &hdev->rpa);
5915 } else {
5916 hci_copy_identity_address(hdev,
5917 &conn->init_addr,
5918 &conn->init_addr_type);
5919 }
cb1d68f7 5920 }
9489eca4
JH		 5921 } else {
5922 cancel_delayed_work(&conn->le_conn_timeout);
b62f328b 5923 }
fcd89c09 5924
d5ebaa7c
SH		 5925 /* The HCI_LE_Connection_Complete event is only sent once per connection.
5926 * Processing it more than once per connection can corrupt kernel memory.
5927 *
5928 * As the connection handle is set here for the first time, it indicates
5929 * whether the connection is already set up.
5930 */
9f78191c 5931 if (!HCI_CONN_HANDLE_UNSET(conn->handle)) {
d5ebaa7c
SH		 5932 bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection");
5933 goto unlock;
5934 }
5935
cafae4cd 5936 le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa);
7be2edbb 5937
edb4b466
MH		 5938 /* Lookup the identity address from the stored connection
5939 * address and address type.
5940 *
5941 * When establishing connections to an identity address, the
5942 * connection procedure will store the resolvable random
5943 * address first. Now if it can be converted back into the
5944 * identity address, start using the identity address from
5945 * now on.
5946 */
5947 irk = hci_get_irk(hdev, &conn->dst, conn->dst_type);
68d6f6de
JH		 5948 if (irk) {
5949 bacpy(&conn->dst, &irk->bdaddr);
5950 conn->dst_type = irk->addr_type;
5951 }
5952
d850bf08 5953 conn->dst_type = ev_bdaddr_type(hdev, conn->dst_type, NULL);
79699a70 5954
c9f73a21
LAD		 5955 /* All connection failure handling is taken care of by the
5956 * hci_conn_failed function which is triggered by the HCI
5957 * request completion callbacks used for connecting.
5958 */
181a42ed 5959 if (status || hci_conn_set_handle(conn, handle))
837d502e 5960 goto unlock;
837d502e 5961
b62e7220
LAD		 5962 /* Drop the connection if it has been aborted */
5963 if (test_bit(HCI_CONN_CANCEL, &conn->flags)) {
5964 hci_conn_drop(conn);
5965 goto unlock;
5966 }
5967
08853f18
JH		 5968 if (conn->dst_type == ADDR_LE_DEV_PUBLIC)
5969 addr_type = BDADDR_LE_PUBLIC;
5970 else
5971 addr_type = BDADDR_LE_RANDOM;
5972
2d3c2260 5973 /* Drop the connection if the device is blocked */
3d4f9c00 5974 if (hci_bdaddr_list_lookup(&hdev->reject_list, &conn->dst, addr_type)) {
2d3c2260 5975 hci_conn_drop(conn);
cd17decb
AG		 5976 goto unlock;
5977 }
5978
b644ba33 5979 if (!test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
1c6ed31b 5980 mgmt_device_connected(hdev, conn, NULL, 0);
83bc71b4 5981
7b5c0d52 5982 conn->sec_level = BT_SECURITY_LOW;
0fe29fd1 5983 conn->state = BT_CONFIG;
fcd89c09 5984
7087c4f6
LAD		 5985 /* Store current advertising instance as connection advertising instance
5986 * when sotfware rotation is in use so it can be re-enabled when
5987 * disconnected.
5988 */
5989 if (!ext_adv_capable(hdev))
5990 conn->adv_instance = hdev->cur_adv_instance;
5991
d12fb056
JK		 5992 conn->le_conn_interval = interval;
5993 conn->le_conn_latency = latency;
5994 conn->le_supv_timeout = supervision_timeout;
e04fde60 5995
23b9ceb7 5996 hci_debugfs_create_conn(conn);
fcd89c09
VT		 5997 hci_conn_add_sysfs(conn);
5998
ef365da1 5999 /* The remote features procedure is defined for central
d17010bf
CIK		 6000 * role only. So only in case of an initiated connection
6001 * request the remote features.
6002 *
ef365da1
AP		 6003 * If the local controller supports peripheral-initiated features
6004 * exchange, then requesting the remote features in peripheral
d17010bf
CIK		 6005 * role is possible. Otherwise just transition into the
6006 * connected state without requesting the remote features.
6007 */
6008 if (conn->out ||
ef365da1 6009 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) {
d17010bf 6010 struct hci_cp_le_read_remote_features cp;
0fe29fd1 6011
d17010bf 6012 cp.handle = __cpu_to_le16(conn->handle);
0fe29fd1 6013
d17010bf
CIK		 6014 hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES,
6015 sizeof(cp), &cp);
0fe29fd1 6016
d17010bf 6017 hci_conn_hold(conn);
0fe29fd1 6018 } else {
d17010bf 6019 conn->state = BT_CONNECTED;
d12fb056 6020 hci_connect_cfm(conn, status);
0fe29fd1 6021 }
fcd89c09 6022
5477610f
JH		 6023 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, &conn->dst,
6024 conn->dst_type);
f161dd41 6025 if (params) {
195ef75e 6026 hci_pend_le_list_del_init(params);
f161dd41
JH		 6027 if (params->conn) {
6028 hci_conn_drop(params->conn);
f8aaf9b6 6029 hci_conn_put(params->conn);
f161dd41
JH		 6030 params->conn = NULL;
6031 }
6032 }
a4790dbd 6033
fcd89c09 6034unlock:
5bee2fd6 6035 hci_update_passive_scan(hdev);
fcd89c09
VT		 6036 hci_dev_unlock(hdev);
6037}
6038
95118dd4
LAD		 6039static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data,
6040 struct sk_buff *skb)
d12fb056 6041{
95118dd4 6042 struct hci_ev_le_conn_complete *ev = data;
d12fb056 6043
95118dd4 6044 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
d12fb056
JK		 6045
6046 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
cafae4cd 6047 NULL, ev->role, le16_to_cpu(ev->handle),
d12fb056
JK		 6048 le16_to_cpu(ev->interval),
6049 le16_to_cpu(ev->latency),
6050 le16_to_cpu(ev->supervision_timeout));
6051}
6052
95118dd4 6053static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data,
4d94f95d
JK		 6054 struct sk_buff *skb)
6055{
95118dd4 6056 struct hci_ev_le_enh_conn_complete *ev = data;
12cfe417 6057
95118dd4 6058 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
4d94f95d
JK		 6059
6060 le_conn_complete_evt(hdev, ev->status, &ev->bdaddr, ev->bdaddr_type,
cafae4cd 6061 &ev->local_rpa, ev->role, le16_to_cpu(ev->handle),
4d94f95d
JK		 6062 le16_to_cpu(ev->interval),
6063 le16_to_cpu(ev->latency),
6064 le16_to_cpu(ev->supervision_timeout));
6065}
6066
95118dd4
LAD		 6067static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data,
6068 struct sk_buff *skb)
acf0aeae 6069{
95118dd4 6070 struct hci_evt_le_ext_adv_set_term *ev = data;
acf0aeae 6071 struct hci_conn *conn;
1f9d5657 6072 struct adv_info *adv, *n;
acf0aeae 6073
95118dd4 6074 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
acf0aeae 6075
0f281a5e
AP		 6076 /* The Bluetooth Core 5.3 specification clearly states that this event
6077 * shall not be sent when the Host disables the advertising set. So in
6078 * case of HCI_ERROR_CANCELLED_BY_HOST, just ignore the event.
6079 *
6080 * When the Host disables an advertising set, all cleanup is done via
6081 * its command callback and not needed to be duplicated here.
6082 */
6083 if (ev->status == HCI_ERROR_CANCELLED_BY_HOST) {
6084 bt_dev_warn_ratelimited(hdev, "Unexpected advertising set terminated event");
6085 return;
6086 }
6087
728abc01
ND		 6088 hci_dev_lock(hdev);
6089
6090 adv = hci_find_adv_instance(hdev, ev->handle);
6091
7087c4f6 6092 if (ev->status) {
23837a6d 6093 if (!adv)
728abc01 6094 goto unlock;
23837a6d
LAD		 6095
6096 /* Remove advertising as it has been terminated */
6097 hci_remove_adv_instance(hdev, ev->handle);
6098 mgmt_advertising_removed(NULL, hdev, ev->handle);
6099
1f9d5657
AP		 6100 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
6101 if (adv->enabled)
728abc01 6102 goto unlock;
1f9d5657
AP		 6103 }
6104
6105 /* We are no longer advertising, clear HCI_LE_ADV */
6106 hci_dev_clear_flag(hdev, HCI_LE_ADV);
728abc01 6107 goto unlock;
23837a6d 6108 }
acf0aeae 6109
7087c4f6
LAD		 6110 if (adv)
6111 adv->enabled = false;
6112
acf0aeae
JK		 6113 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle));
6114 if (conn) {
7087c4f6
LAD		 6115 /* Store handle in the connection so the correct advertising
6116 * instance can be re-enabled when disconnected.
6117 */
6118 conn->adv_instance = ev->handle;
acf0aeae 6119
cafae4cd
LAD		 6120 if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM ||
6121 bacmp(&conn->resp_addr, BDADDR_ANY))
728abc01 6122 goto unlock;
acf0aeae 6123
25e70886 6124 if (!ev->handle) {
acf0aeae 6125 bacpy(&conn->resp_addr, &hdev->random_addr);
728abc01 6126 goto unlock;
acf0aeae
JK		 6127 }
6128
7087c4f6
LAD		 6129 if (adv)
6130 bacpy(&conn->resp_addr, &adv->random_addr);
acf0aeae 6131 }
728abc01
ND		 6132
6133unlock:
6134 hci_dev_unlock(hdev);
acf0aeae
JK		 6135}
6136
95118dd4 6137static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data,
1855d92d
MH		 6138 struct sk_buff *skb)
6139{
95118dd4 6140 struct hci_ev_le_conn_update_complete *ev = data;
1855d92d
MH		 6141 struct hci_conn *conn;
6142
95118dd4 6143 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1855d92d
MH		 6144
6145 if (ev->status)
6146 return;
6147
6148 hci_dev_lock(hdev);
6149
6150 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6151 if (conn) {
6152 conn->le_conn_interval = le16_to_cpu(ev->interval);
6153 conn->le_conn_latency = le16_to_cpu(ev->latency);
6154 conn->le_supv_timeout = le16_to_cpu(ev->supervision_timeout);
6155 }
6156
6157 hci_dev_unlock(hdev);
6158}
6159
a4790dbd 6160/* This function requires the caller holds hdev->lock */
fd45ada9
AA		 6161static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev,
6162 bdaddr_t *addr,
d850bf08 6163 u8 addr_type, bool addr_resolved,
8e8b92ee 6164 u8 adv_type)
a4790dbd
AG		 6165{
6166 struct hci_conn *conn;
4b9e7e75 6167 struct hci_conn_params *params;
a4790dbd 6168
1c1abcab
JH		 6169 /* If the event is not connectable don't proceed further */
6170 if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND)
fd45ada9 6171 return NULL;
1c1abcab 6172
182ee45d
LAD		 6173 /* Ignore if the device is blocked or hdev is suspended */
6174 if (hci_bdaddr_list_lookup(&hdev->reject_list, addr, addr_type) ||
6175 hdev->suspended)
fd45ada9 6176 return NULL;
1c1abcab 6177
f99353cf 6178 /* Most controller will fail if we try to create new connections
39bc74ca 6179 * while we have an existing one in peripheral role.
f99353cf 6180 */
39bc74ca 6181 if (hdev->conn_hash.le_num_peripheral > 0 &&
4364f2e9
AM		 6182 (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) ||
6183 !(hdev->le_states[3] & 0x10)))
fd45ada9 6184 return NULL;
f99353cf 6185
1c1abcab
JH		 6186 /* If we're not connectable only connect devices that we have in
6187 * our pend_le_conns list.
6188 */
49c50922
JH		 6189 params = hci_pend_le_action_lookup(&hdev->pend_le_conns, addr,
6190 addr_type);
4b9e7e75 6191 if (!params)
fd45ada9 6192 return NULL;
4b9e7e75 6193
28a667c9
JP		 6194 if (!params->explicit_connect) {
6195 switch (params->auto_connect) {
6196 case HCI_AUTO_CONN_DIRECT:
6197 /* Only devices advertising with ADV_DIRECT_IND are
6198 * triggering a connection attempt. This is allowing
67ffb185 6199 * incoming connections from peripheral devices.
28a667c9
JP		 6200 */
6201 if (adv_type != LE_ADV_DIRECT_IND)
6202 return NULL;
6203 break;
6204 case HCI_AUTO_CONN_ALWAYS:
6205 /* Devices advertising with ADV_IND or ADV_DIRECT_IND
6206 * are triggering a connection attempt. This means
67ffb185
AP		 6207 * that incoming connections from peripheral device are
6208 * accepted and also outgoing connections to peripheral
28a667c9
JP		 6209 * devices are established when found.
6210 */
6211 break;
6212 default:
fd45ada9 6213 return NULL;
28a667c9 6214 }
4b9e7e75 6215 }
a4790dbd 6216
d850bf08
LAD		 6217 conn = hci_connect_le(hdev, addr, addr_type, addr_resolved,
6218 BT_SECURITY_LOW, hdev->def_le_autoconnect_timeout,
8e8b92ee 6219 HCI_ROLE_MASTER);
f161dd41 6220 if (!IS_ERR(conn)) {
28a667c9
JP		 6221 /* If HCI_AUTO_CONN_EXPLICIT is set, conn is already owned
6222 * by higher layer that tried to connect, if no then
6223 * store the pointer since we don't really have any
f161dd41
JH		 6224 * other owner of the object besides the params that
6225 * triggered it. This way we can abort the connection if
6226 * the parameters get removed and keep the reference
6227 * count consistent once the connection is established.
6228 */
28a667c9
JP		 6229
6230 if (!params->explicit_connect)
6231 params->conn = hci_conn_get(conn);
6232
fd45ada9 6233 return conn;
f161dd41 6234 }
a4790dbd
AG		 6235
6236 switch (PTR_ERR(conn)) {
6237 case -EBUSY:
6238 /* If hci_connect() returns -EBUSY it means there is already
6239 * an LE connection attempt going on. Since controllers don't
6240 * support more than one connection attempt at the time, we
6241 * don't consider this an error case.
6242 */
6243 break;
6244 default:
6245 BT_DBG("Failed to connect: err %ld", PTR_ERR(conn));
fd45ada9 6246 return NULL;
a4790dbd 6247 }
fd45ada9
AA		 6248
6249 return NULL;
a4790dbd
AG		 6250}
6251
4af605d8 6252static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr,
2f010b55 6253 u8 bdaddr_type, bdaddr_t *direct_addr,
a2ec905d 6254 u8 direct_addr_type, s8 rssi, u8 *data, u8 len,
b338d917 6255 bool ext_adv, bool ctl_time, u64 instant)
4af605d8 6256{
b9a6328f 6257 struct discovery_state *d = &hdev->discovery;
1c1abcab 6258 struct smp_irk *irk;
fd45ada9 6259 struct hci_conn *conn;
d850bf08 6260 bool match, bdaddr_resolved;
c70a7e4c 6261 u32 flags;
1c58e933 6262 u8 *ptr;
6818375e 6263
56b40fbf
JH		 6264 switch (type) {
6265 case LE_ADV_IND:
6266 case LE_ADV_DIRECT_IND:
6267 case LE_ADV_SCAN_IND:
6268 case LE_ADV_NONCONN_IND:
6269 case LE_ADV_SCAN_RSP:
6270 break;
6271 default:
2064ee33
MH		 6272 bt_dev_err_ratelimited(hdev, "unknown advertising packet "
6273 "type: 0x%02x", type);
56b40fbf
JH		 6274 return;
6275 }
6276
112b5090
LAD		 6277 if (len > max_adv_len(hdev)) {
6278 bt_dev_err_ratelimited(hdev,
6279 "adv larger than maximum supported");
a2ec905d
AM		 6280 return;
6281 }
6282
6818375e
SJ		 6283 /* Find the end of the data in case the report contains padded zero
6284 * bytes at the end causing an invalid length value.
6285 *
6286 * When data is NULL, len is 0 so there is no need for extra ptr
6287 * check as 'ptr < data + 0' is already false in such case.
6288 */
6289 for (ptr = data; ptr < data + len && *ptr; ptr += *ptr + 1) {
6290 if (ptr + 1 + *ptr > data + len)
6291 break;
6292 }
6293
1c58e933
SJ		 6294 /* Adjust for actual length. This handles the case when remote
6295 * device is advertising with incorrect data length.
6296 */
6297 len = ptr - data;
b9a6328f 6298
2f010b55
MH		 6299 /* If the direct address is present, then this report is from
6300 * a LE Direct Advertising Report event. In that case it is
6301 * important to see if the address is matching the local
6302 * controller address.
6303 */
b338d917 6304 if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) {
d850bf08
LAD		 6305 direct_addr_type = ev_bdaddr_type(hdev, direct_addr_type,
6306 &bdaddr_resolved);
4ec4d63b 6307
2f010b55
MH		 6308 /* Only resolvable random addresses are valid for these
6309 * kind of reports and others can be ignored.
6310 */
6311 if (!hci_bdaddr_is_rpa(direct_addr, direct_addr_type))
6312 return;
6313
6314 /* If the controller is not using resolvable random
6315 * addresses, then this report can be ignored.
6316 */
d7a5a11d 6317 if (!hci_dev_test_flag(hdev, HCI_PRIVACY))
2f010b55
MH		 6318 return;
6319
6320 /* If the local IRK of the controller does not match
6321 * with the resolvable random address provided, then
6322 * this report can be ignored.
6323 */
6324 if (!smp_irk_matches(hdev, hdev->irk, direct_addr))
6325 return;
6326 }
6327
1c1abcab
JH		 6328 /* Check if we need to convert to identity address */
6329 irk = hci_get_irk(hdev, bdaddr, bdaddr_type);
6330 if (irk) {
6331 bdaddr = &irk->bdaddr;
6332 bdaddr_type = irk->addr_type;
6333 }
6334
d850bf08 6335 bdaddr_type = ev_bdaddr_type(hdev, bdaddr_type, &bdaddr_resolved);
4ec4d63b 6336
082f2300
SJ		 6337 /* Check if we have been requested to connect to this device.
6338 *
6339 * direct_addr is set only for directed advertising reports (it is NULL
6340 * for advertising reports) and is already verified to be RPA above.
6341 */
d850bf08 6342 conn = check_pending_le_conn(hdev, bdaddr, bdaddr_type, bdaddr_resolved,
8e8b92ee 6343 type);
112b5090
LAD		 6344 if (!ext_adv && conn && type == LE_ADV_IND &&
6345 len <= max_adv_len(hdev)) {
fd45ada9
AA		 6346 /* Store report for later inclusion by
6347 * mgmt_device_connected
6348 */
6349 memcpy(conn->le_adv_data, data, len);
6350 conn->le_adv_data_len = len;
6351 }
1c1abcab 6352
b338d917
BG		 6353 if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND)
6354 flags = MGMT_DEV_FOUND_NOT_CONNECTABLE;
6355 else
6356 flags = 0;
6357
6358 /* All scan results should be sent up for Mesh systems */
6359 if (hci_dev_test_flag(hdev, HCI_MESH)) {
6360 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
6361 rssi, flags, data, len, NULL, 0, instant);
6362 return;
6363 }
6364
0d2bf134
JH		 6365 /* Passive scanning shouldn't trigger any device found events,
6366 * except for devices marked as CONN_REPORT for which we do send
8208f5a9 6367 * device found events, or advertisement monitoring requested.
0d2bf134 6368 */
ca5c4be7 6369 if (hdev->le_scan_type == LE_SCAN_PASSIVE) {
0d2bf134
JH		 6370 if (type == LE_ADV_DIRECT_IND)
6371 return;
6372
3a19b6fe 6373 if (!hci_pend_le_action_lookup(&hdev->pend_le_reports,
8208f5a9
MC		 6374 bdaddr, bdaddr_type) &&
6375 idr_is_empty(&hdev->adv_monitors_idr))
0d2bf134
JH		 6376 return;
6377
0d2bf134 6378 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
b338d917 6379 rssi, flags, data, len, NULL, 0, 0);
97bf2e99 6380 return;
ca5c4be7 6381 }
4af605d8 6382
73f55453 6383 /* When receiving a scan response, then there is no way to
c70a7e4c
MH		 6384 * know if the remote device is connectable or not. However
6385 * since scan responses are merged with a previously seen
6386 * advertising report, the flags field from that report
6387 * will be used.
6388 *
73f55453
LAD		 6389 * In the unlikely case that a controller just sends a scan
6390 * response event that doesn't match the pending report, then
6391 * it is marked as a standalone SCAN_RSP.
c70a7e4c 6392 */
b338d917 6393 if (type == LE_ADV_SCAN_RSP)
73f55453 6394 flags = MGMT_DEV_FOUND_SCAN_RSP;
c70a7e4c 6395
b9a6328f
JH		 6396 /* If there's nothing pending either store the data from this
6397 * event or send an immediate device found event if the data
6398 * should not be stored for later.
6399 */
a2ec905d 6400 if (!ext_adv && !has_pending_adv_report(hdev)) {
b9a6328f
JH		 6401 /* If the report will trigger a SCAN_REQ store it for
6402 * later merging.
6403 */
6404 if (type == LE_ADV_IND || type == LE_ADV_SCAN_IND) {
6405 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 6406 rssi, flags, data, len);
b9a6328f
JH		 6407 return;
6408 }
6409
6410 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
b338d917 6411 rssi, flags, data, len, NULL, 0, 0);
b9a6328f
JH		 6412 return;
6413 }
6414
474ee066
JH		 6415 /* Check if the pending report is for the same device as the new one */
6416 match = (!bacmp(bdaddr, &d->last_adv_addr) &&
6417 bdaddr_type == d->last_adv_addr_type);
6418
b9a6328f
JH		 6419 /* If the pending data doesn't match this report or this isn't a
6420 * scan response (e.g. we got a duplicate ADV_IND) then force
6421 * sending of the pending data.
6422 */
474ee066
JH		 6423 if (type != LE_ADV_SCAN_RSP || !match) {
6424 /* Send out whatever is in the cache, but skip duplicates */
6425 if (!match)
6426 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
ff5cd29f 6427 d->last_adv_addr_type, NULL,
c70a7e4c 6428 d->last_adv_rssi, d->last_adv_flags,
ff5cd29f 6429 d->last_adv_data,
b338d917 6430 d->last_adv_data_len, NULL, 0, 0);
b9a6328f
JH		 6431
6432 /* If the new report will trigger a SCAN_REQ store it for
6433 * later merging.
6434 */
a2ec905d
AM		 6435 if (!ext_adv && (type == LE_ADV_IND ||
6436 type == LE_ADV_SCAN_IND)) {
b9a6328f 6437 store_pending_adv_report(hdev, bdaddr, bdaddr_type,
c70a7e4c 6438 rssi, flags, data, len);
b9a6328f
JH		 6439 return;
6440 }
6441
6442 /* The advertising reports cannot be merged, so clear
6443 * the pending report and send out a device found event.
6444 */
6445 clear_pending_adv_report(hdev);
5c5b93e4 6446 mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL,
b338d917 6447 rssi, flags, data, len, NULL, 0, 0);
b9a6328f
JH		 6448 return;
6449 }
6450
6451 /* If we get here we've got a pending ADV_IND or ADV_SCAN_IND and
6452 * the new event is a SCAN_RSP. We can therefore proceed with
6453 * sending a merged device found event.
6454 */
6455 mgmt_device_found(hdev, &d->last_adv_addr, LE_LINK,
c70a7e4c 6456 d->last_adv_addr_type, NULL, rssi, d->last_adv_flags,
b338d917 6457 d->last_adv_data, d->last_adv_data_len, data, len, 0);
b9a6328f 6458 clear_pending_adv_report(hdev);
4af605d8
JH		 6459}
6460
95118dd4
LAD		 6461static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data,
6462 struct sk_buff *skb)
9aa04c91 6463{
95118dd4 6464 struct hci_ev_le_advertising_report *ev = data;
b338d917 6465 u64 instant = jiffies;
47afe93c
LAD		 6466
6467 if (!ev->num)
6468 return;
9aa04c91 6469
a4790dbd
AG		 6470 hci_dev_lock(hdev);
6471
47afe93c
LAD		 6472 while (ev->num--) {
6473 struct hci_ev_le_advertising_info *info;
4af605d8 6474 s8 rssi;
a4790dbd 6475
47afe93c
LAD		 6476 info = hci_le_ev_skb_pull(hdev, skb,
6477 HCI_EV_LE_ADVERTISING_REPORT,
6478 sizeof(*info));
6479 if (!info)
899663be 6480 break;
899663be 6481
47afe93c
LAD		 6482 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT,
6483 info->length + 1))
6484 break;
6485
112b5090 6486 if (info->length <= max_adv_len(hdev)) {
47afe93c
LAD		 6487 rssi = info->data[info->length];
6488 process_adv_report(hdev, info->type, &info->bdaddr,
6489 info->bdaddr_type, NULL, 0, rssi,
b338d917
BG		 6490 info->data, info->length, false,
6491 false, instant);
ee649346
CC		 6492 } else {
6493 bt_dev_err(hdev, "Dropping invalid advertising data");
6494 }
9aa04c91 6495 }
a4790dbd
AG		 6496
6497 hci_dev_unlock(hdev);
9aa04c91
AG		 6498}
6499
657cc646 6500static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type)
b2cc9761
JK		 6501{
6502 if (evt_type & LE_EXT_ADV_LEGACY_PDU) {
6503 switch (evt_type) {
6504 case LE_LEGACY_ADV_IND:
6505 return LE_ADV_IND;
6506 case LE_LEGACY_ADV_DIRECT_IND:
6507 return LE_ADV_DIRECT_IND;
6508 case LE_LEGACY_ADV_SCAN_IND:
6509 return LE_ADV_SCAN_IND;
6510 case LE_LEGACY_NONCONN_IND:
6511 return LE_ADV_NONCONN_IND;
6512 case LE_LEGACY_SCAN_RSP_ADV:
6513 case LE_LEGACY_SCAN_RSP_ADV_SCAN:
6514 return LE_ADV_SCAN_RSP;
6515 }
6516
657cc646 6517 goto invalid;
b2cc9761
JK		 6518 }
6519
6520 if (evt_type & LE_EXT_ADV_CONN_IND) {
6521 if (evt_type & LE_EXT_ADV_DIRECT_IND)
6522 return LE_ADV_DIRECT_IND;
6523
c215e939 6524 return LE_ADV_IND;
b2cc9761
JK		 6525 }
6526
6527 if (evt_type & LE_EXT_ADV_SCAN_RSP)
6528 return LE_ADV_SCAN_RSP;
6529
6530 if (evt_type & LE_EXT_ADV_SCAN_IND)
c215e939 6531 return LE_ADV_SCAN_IND;
b2cc9761
JK		 6532
6533 if (evt_type == LE_EXT_ADV_NON_CONN_IND ||
6534 evt_type & LE_EXT_ADV_DIRECT_IND)
c215e939 6535 return LE_ADV_NONCONN_IND;
c215e939 6536
657cc646
MH		 6537invalid:
6538 bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x",
6539 evt_type);
c215e939
JK		 6540
6541 return LE_ADV_INVALID;
6542}
6543
95118dd4
LAD		 6544static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data,
6545 struct sk_buff *skb)
c215e939 6546{
95118dd4 6547 struct hci_ev_le_ext_adv_report *ev = data;
b338d917 6548 u64 instant = jiffies;
b48b833f
LAD		 6549
6550 if (!ev->num)
6551 return;
c215e939
JK		 6552
6553 hci_dev_lock(hdev);
6554
b48b833f
LAD		 6555 while (ev->num--) {
6556 struct hci_ev_le_ext_adv_info *info;
c215e939
JK		 6557 u8 legacy_evt_type;
6558 u16 evt_type;
6559
b48b833f
LAD		 6560 info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6561 sizeof(*info));
6562 if (!info)
6563 break;
6564
6565 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT,
6566 info->length))
6567 break;
6568
ad38e55e 6569 evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK;
657cc646 6570 legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type);
c215e939 6571 if (legacy_evt_type != LE_ADV_INVALID) {
b48b833f
LAD		 6572 process_adv_report(hdev, legacy_evt_type, &info->bdaddr,
6573 info->bdaddr_type, NULL, 0,
6574 info->rssi, info->data, info->length,
b338d917
BG		 6575 !(evt_type & LE_EXT_ADV_LEGACY_PDU),
6576 false, instant);
c215e939 6577 }
c215e939
JK		 6578 }
6579
6580 hci_dev_unlock(hdev);
6581}
6582
eca0ae4a
LAD		 6583static int hci_le_pa_term_sync(struct hci_dev *hdev, __le16 handle)
6584{
6585 struct hci_cp_le_pa_term_sync cp;
6586
6587 memset(&cp, 0, sizeof(cp));
6588 cp.handle = handle;
6589
6590 return hci_send_cmd(hdev, HCI_OP_LE_PA_TERM_SYNC, sizeof(cp), &cp);
6591}
6592
6593static void hci_le_pa_sync_estabilished_evt(struct hci_dev *hdev, void *data,
6594 struct sk_buff *skb)
6595{
6596 struct hci_ev_le_pa_sync_established *ev = data;
6597 int mask = hdev->link_mode;
6598 __u8 flags = 0;
1d11d70d 6599 struct hci_conn *pa_sync;
eca0ae4a
LAD		 6600
6601 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6602
eca0ae4a
LAD		 6603 hci_dev_lock(hdev);
6604
6605 hci_dev_clear_flag(hdev, HCI_PA_SYNC);
6606
6607 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ISO_LINK, &flags);
fbdc4bc4 6608 if (!(mask & HCI_LM_ACCEPT)) {
eca0ae4a 6609 hci_le_pa_term_sync(hdev, ev->handle);
fbdc4bc4
IT		 6610 goto unlock;
6611 }
6612
6613 if (!(flags & HCI_PROTO_DEFER))
6614 goto unlock;
6615
1d11d70d
IT		 6616 if (ev->status) {
6617 /* Add connection to indicate the failed PA sync event */
181a42ed
ZX		 6618 pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY,
6619 HCI_ROLE_SLAVE);
fbdc4bc4 6620
1d11d70d
IT		 6621 if (!pa_sync)
6622 goto unlock;
fbdc4bc4 6623
1d11d70d 6624 set_bit(HCI_CONN_PA_SYNC_FAILED, &pa_sync->flags);
fbdc4bc4 6625
1d11d70d
IT		 6626 /* Notify iso layer */
6627 hci_connect_cfm(pa_sync, ev->status);
6628 }
eca0ae4a 6629
fbdc4bc4 6630unlock:
eca0ae4a
LAD		 6631 hci_dev_unlock(hdev);
6632}
6633
9c082631
CD		 6634static void hci_le_per_adv_report_evt(struct hci_dev *hdev, void *data,
6635 struct sk_buff *skb)
6636{
6637 struct hci_ev_le_per_adv_report *ev = data;
6638 int mask = hdev->link_mode;
6639 __u8 flags = 0;
6640
6641 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
6642
6643 hci_dev_lock(hdev);
6644
6645 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
6646 if (!(mask & HCI_LM_ACCEPT))
6647 hci_le_pa_term_sync(hdev, ev->sync_handle);
6648
6649 hci_dev_unlock(hdev);
6650}
6651
95118dd4 6652static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data,
0fe29fd1
MH		 6653 struct sk_buff *skb)
6654{
95118dd4 6655 struct hci_ev_le_remote_feat_complete *ev = data;
0fe29fd1
MH		 6656 struct hci_conn *conn;
6657
95118dd4 6658 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
0fe29fd1
MH		 6659
6660 hci_dev_lock(hdev);
6661
6662 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6663 if (conn) {
6664 if (!ev->status)
6665 memcpy(conn->features[0], ev->features, 8);
6666
6667 if (conn->state == BT_CONFIG) {
6668 __u8 status;
6669
ef365da1 6670 /* If the local controller supports peripheral-initiated
0fe29fd1
MH		 6671 * features exchange, but the remote controller does
6672 * not, then it is possible that the error code 0x1a
6673 * for unsupported remote feature gets returned.
6674 *
6675 * In this specific case, allow the connection to
6676 * transition into connected state and mark it as
6677 * successful.
6678 */
ef365da1
AP		 6679 if (!conn->out && ev->status == 0x1a &&
6680 (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES))
0fe29fd1
MH		 6681 status = 0x00;
6682 else
6683 status = ev->status;
6684
6685 conn->state = BT_CONNECTED;
6686 hci_connect_cfm(conn, status);
6687 hci_conn_drop(conn);
6688 }
6689 }
6690
6691 hci_dev_unlock(hdev);
6692}
6693
95118dd4
LAD		 6694static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data,
6695 struct sk_buff *skb)
a7a595f6 6696{
95118dd4 6697 struct hci_ev_le_ltk_req *ev = data;
a7a595f6 6698 struct hci_cp_le_ltk_reply cp;
bea710fe 6699 struct hci_cp_le_ltk_neg_reply neg;
a7a595f6 6700 struct hci_conn *conn;
c9839a11 6701 struct smp_ltk *ltk;
a7a595f6 6702
95118dd4 6703 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
a7a595f6
VCG		 6704
6705 hci_dev_lock(hdev);
6706
6707 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
bea710fe
VCG		 6708 if (conn == NULL)
6709 goto not_found;
a7a595f6 6710
f3a73d97 6711 ltk = hci_find_ltk(hdev, &conn->dst, conn->dst_type, conn->role);
5378bc56 6712 if (!ltk)
bea710fe
VCG		 6713 goto not_found;
6714
5378bc56
JH		 6715 if (smp_ltk_is_sc(ltk)) {
6716 /* With SC both EDiv and Rand are set to zero */
6717 if (ev->ediv || ev->rand)
6718 goto not_found;
6719 } else {
6720 /* For non-SC keys check that EDiv and Rand match */
6721 if (ev->ediv != ltk->ediv || ev->rand != ltk->rand)
6722 goto not_found;
6723 }
6724
8b76ce34
JH		 6725 memcpy(cp.ltk, ltk->val, ltk->enc_size);
6726 memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size);
a7a595f6 6727 cp.handle = cpu_to_le16(conn->handle);
c9839a11 6728
a6f7833c 6729 conn->pending_sec_level = smp_ltk_sec_level(ltk);
a7a595f6 6730
89cbb4da 6731 conn->enc_key_size = ltk->enc_size;
a7a595f6
VCG		 6732
6733 hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
6734
5981a882
CT		 6735 /* Ref. Bluetooth Core SPEC pages 1975 and 2004. STK is a
6736 * temporary key used to encrypt a connection following
6737 * pairing. It is used during the Encrypted Session Setup to
6738 * distribute the keys. Later, security can be re-established
6739 * using a distributed LTK.
6740 */
2ceba539 6741 if (ltk->type == SMP_STK) {
fe59a05f 6742 set_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
970d0f1b
JH		 6743 list_del_rcu(&ltk->list);
6744 kfree_rcu(ltk, rcu);
fe59a05f
JH		 6745 } else {
6746 clear_bit(HCI_CONN_STK_ENCRYPT, &conn->flags);
c9839a11
VCG		 6747 }
6748
a7a595f6 6749 hci_dev_unlock(hdev);
bea710fe
VCG		 6750
6751 return;
6752
6753not_found:
6754 neg.handle = ev->handle;
6755 hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
6756 hci_dev_unlock(hdev);
a7a595f6
VCG		 6757}
6758
8e75b46a
AG		 6759static void send_conn_param_neg_reply(struct hci_dev *hdev, u16 handle,
6760 u8 reason)
6761{
6762 struct hci_cp_le_conn_param_req_neg_reply cp;
6763
6764 cp.handle = cpu_to_le16(handle);
6765 cp.reason = reason;
6766
6767 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_NEG_REPLY, sizeof(cp),
6768 &cp);
6769}
6770
95118dd4 6771static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data,
8e75b46a
AG		 6772 struct sk_buff *skb)
6773{
95118dd4 6774 struct hci_ev_le_remote_conn_param_req *ev = data;
8e75b46a
AG		 6775 struct hci_cp_le_conn_param_req_reply cp;
6776 struct hci_conn *hcon;
6777 u16 handle, min, max, latency, timeout;
6778
95118dd4 6779 bt_dev_dbg(hdev, "handle 0x%4.4x", __le16_to_cpu(ev->handle));
12cfe417 6780
8e75b46a
AG		 6781 handle = le16_to_cpu(ev->handle);
6782 min = le16_to_cpu(ev->interval_min);
6783 max = le16_to_cpu(ev->interval_max);
6784 latency = le16_to_cpu(ev->latency);
6785 timeout = le16_to_cpu(ev->timeout);
6786
6787 hcon = hci_conn_hash_lookup_handle(hdev, handle);
6788 if (!hcon || hcon->state != BT_CONNECTED)
6789 return send_conn_param_neg_reply(hdev, handle,
6790 HCI_ERROR_UNKNOWN_CONN_ID);
6791
6792 if (hci_check_conn_params(min, max, latency, timeout))
6793 return send_conn_param_neg_reply(hdev, handle,
6794 HCI_ERROR_INVALID_LL_PARAMS);
6795
40bef302 6796 if (hcon->role == HCI_ROLE_MASTER) {
348d50b8 6797 struct hci_conn_params *params;
f4869e2a 6798 u8 store_hint;
348d50b8
JH		 6799
6800 hci_dev_lock(hdev);
6801
6802 params = hci_conn_params_lookup(hdev, &hcon->dst,
6803 hcon->dst_type);
6804 if (params) {
6805 params->conn_min_interval = min;
6806 params->conn_max_interval = max;
6807 params->conn_latency = latency;
6808 params->supervision_timeout = timeout;
f4869e2a 6809 store_hint = 0x01;
149b3f13 6810 } else {
f4869e2a 6811 store_hint = 0x00;
348d50b8
JH		 6812 }
6813
6814 hci_dev_unlock(hdev);
6815
f4869e2a
JH		 6816 mgmt_new_conn_param(hdev, &hcon->dst, hcon->dst_type,
6817 store_hint, min, max, latency, timeout);
348d50b8 6818 }
ffb5a827 6819
8e75b46a
AG		 6820 cp.handle = ev->handle;
6821 cp.interval_min = ev->interval_min;
6822 cp.interval_max = ev->interval_max;
6823 cp.latency = ev->latency;
6824 cp.timeout = ev->timeout;
6825 cp.min_ce_len = 0;
6826 cp.max_ce_len = 0;
6827
6828 hci_send_cmd(hdev, HCI_OP_LE_CONN_PARAM_REQ_REPLY, sizeof(cp), &cp);
6829}
6830
95118dd4 6831static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data,
2f010b55
MH		 6832 struct sk_buff *skb)
6833{
95118dd4 6834 struct hci_ev_le_direct_adv_report *ev = data;
b338d917 6835 u64 instant = jiffies;
a3679649
LAD		 6836 int i;
6837
a3679649
LAD		 6838 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_DIRECT_ADV_REPORT,
6839 flex_array_size(ev, info, ev->num)))
6840 return;
6841
6842 if (!ev->num)
f7e0e8b2 6843 return;
2f010b55 6844
f7e0e8b2 6845 hci_dev_lock(hdev);
2f010b55 6846
a3679649
LAD		 6847 for (i = 0; i < ev->num; i++) {
6848 struct hci_ev_le_direct_adv_info *info = &ev->info[i];
6849
6850 process_adv_report(hdev, info->type, &info->bdaddr,
6851 info->bdaddr_type, &info->direct_addr,
6852 info->direct_addr_type, info->rssi, NULL, 0,
b338d917 6853 false, false, instant);
a3679649 6854 }
2f010b55 6855
2f010b55
MH		 6856 hci_dev_unlock(hdev);
6857}
6858
95118dd4
LAD		 6859static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data,
6860 struct sk_buff *skb)
1efd927d 6861{
95118dd4 6862 struct hci_ev_le_phy_update_complete *ev = data;
1efd927d
LAD		 6863 struct hci_conn *conn;
6864
95118dd4 6865 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
1efd927d 6866
87df8bcc 6867 if (ev->status)
1efd927d
LAD		 6868 return;
6869
6870 hci_dev_lock(hdev);
6871
6872 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
6873 if (!conn)
6874 goto unlock;
6875
6876 conn->le_tx_phy = ev->tx_phy;
6877 conn->le_rx_phy = ev->rx_phy;
6878
6879unlock:
6880 hci_dev_unlock(hdev);
6881}
6882
26afbd82
LAD		 6883static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data,
6884 struct sk_buff *skb)
6885{
6886 struct hci_evt_le_cis_established *ev = data;
6887 struct hci_conn *conn;
2be22f19 6888 struct bt_iso_qos *qos;
7f74563e 6889 bool pending = false;
26afbd82
LAD		 6890 u16 handle = __le16_to_cpu(ev->handle);
6891
6892 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
6893
6894 hci_dev_lock(hdev);
6895
6896 conn = hci_conn_hash_lookup_handle(hdev, handle);
6897 if (!conn) {
6898 bt_dev_err(hdev,
6899 "Unable to find connection with handle 0x%4.4x",
6900 handle);
6901 goto unlock;
6902 }
6903
ed680f92
LAD		 6904 if (conn->type != ISO_LINK) {
6905 bt_dev_err(hdev,
6906 "Invalid connection link type handle 0x%4.4x",
6907 handle);
6908 goto unlock;
6909 }
6910
2be22f19
LAD		 6911 qos = &conn->iso_qos;
6912
7f74563e
PV		 6913 pending = test_and_clear_bit(HCI_CONN_CREATE_CIS, &conn->flags);
6914
2be22f19
LAD		 6915 /* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */
6916 qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250;
6917 qos->ucast.out.interval = qos->ucast.in.interval;
6918
6919 switch (conn->role) {
6920 case HCI_ROLE_SLAVE:
6921 /* Convert Transport Latency (us) to Latency (msec) */
6922 qos->ucast.in.latency =
6923 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6924 1000);
6925 qos->ucast.out.latency =
6926 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6927 1000);
6928 qos->ucast.in.sdu = le16_to_cpu(ev->c_mtu);
6929 qos->ucast.out.sdu = le16_to_cpu(ev->p_mtu);
6930 qos->ucast.in.phy = ev->c_phy;
6931 qos->ucast.out.phy = ev->p_phy;
6932 break;
6933 case HCI_ROLE_MASTER:
6934 /* Convert Transport Latency (us) to Latency (msec) */
6935 qos->ucast.out.latency =
6936 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency),
6937 1000);
6938 qos->ucast.in.latency =
6939 DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency),
6940 1000);
6941 qos->ucast.out.sdu = le16_to_cpu(ev->c_mtu);
6942 qos->ucast.in.sdu = le16_to_cpu(ev->p_mtu);
6943 qos->ucast.out.phy = ev->c_phy;
6944 qos->ucast.in.phy = ev->p_phy;
6945 break;
26afbd82
LAD		 6946 }
6947
6948 if (!ev->status) {
6949 conn->state = BT_CONNECTED;
6950 hci_debugfs_create_conn(conn);
6951 hci_conn_add_sysfs(conn);
6952 hci_iso_setup_path(conn);
6953 goto unlock;
6954 }
6955
7f74563e 6956 conn->state = BT_CLOSED;
26afbd82
LAD		 6957 hci_connect_cfm(conn, ev->status);
6958 hci_conn_del(conn);
6959
6960unlock:
7f74563e
PV		 6961 if (pending)
6962 hci_le_create_cis_pending(hdev);
6963
26afbd82
LAD		 6964 hci_dev_unlock(hdev);
6965}
6966
6967static void hci_le_reject_cis(struct hci_dev *hdev, __le16 handle)
6968{
6969 struct hci_cp_le_reject_cis cp;
6970
6971 memset(&cp, 0, sizeof(cp));
6972 cp.handle = handle;
6973 cp.reason = HCI_ERROR_REJ_BAD_ADDR;
6974 hci_send_cmd(hdev, HCI_OP_LE_REJECT_CIS, sizeof(cp), &cp);
6975}
6976
6977static void hci_le_accept_cis(struct hci_dev *hdev, __le16 handle)
6978{
6979 struct hci_cp_le_accept_cis cp;
6980
6981 memset(&cp, 0, sizeof(cp));
6982 cp.handle = handle;
6983 hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
6984}
6985
6986static void hci_le_cis_req_evt(struct hci_dev *hdev, void *data,
6987 struct sk_buff *skb)
6988{
6989 struct hci_evt_le_cis_req *ev = data;
6990 u16 acl_handle, cis_handle;
6991 struct hci_conn *acl, *cis;
6992 int mask;
6993 __u8 flags = 0;
6994
6995 acl_handle = __le16_to_cpu(ev->acl_handle);
6996 cis_handle = __le16_to_cpu(ev->cis_handle);
6997
6998 bt_dev_dbg(hdev, "acl 0x%4.4x handle 0x%4.4x cig 0x%2.2x cis 0x%2.2x",
6999 acl_handle, cis_handle, ev->cig_id, ev->cis_id);
7000
7001 hci_dev_lock(hdev);
7002
7003 acl = hci_conn_hash_lookup_handle(hdev, acl_handle);
7004 if (!acl)
7005 goto unlock;
7006
7007 mask = hci_proto_connect_ind(hdev, &acl->dst, ISO_LINK, &flags);
7008 if (!(mask & HCI_LM_ACCEPT)) {
7009 hci_le_reject_cis(hdev, ev->cis_handle);
7010 goto unlock;
7011 }
7012
7013 cis = hci_conn_hash_lookup_handle(hdev, cis_handle);
7014 if (!cis) {
181a42ed
ZX		 7015 cis = hci_conn_add(hdev, ISO_LINK, &acl->dst, HCI_ROLE_SLAVE,
7016 cis_handle);
26afbd82
LAD		 7017 if (!cis) {
7018 hci_le_reject_cis(hdev, ev->cis_handle);
7019 goto unlock;
7020 }
26afbd82
LAD		 7021 }
7022
0fe8c8d0
IT		 7023 cis->iso_qos.ucast.cig = ev->cig_id;
7024 cis->iso_qos.ucast.cis = ev->cis_id;
26afbd82
LAD		 7025
7026 if (!(flags & HCI_PROTO_DEFER)) {
7027 hci_le_accept_cis(hdev, ev->cis_handle);
7028 } else {
7029 cis->state = BT_CONNECT2;
7030 hci_connect_cfm(cis, 0);
7031 }
7032
7033unlock:
7034 hci_dev_unlock(hdev);
7035}
7036
acab8ff2
IT		 7037static int hci_iso_term_big_sync(struct hci_dev *hdev, void *data)
7038{
7039 u8 handle = PTR_UINT(data);
7040
7041 return hci_le_terminate_big_sync(hdev, handle,
7042 HCI_ERROR_LOCAL_HOST_TERM);
7043}
7044
eca0ae4a
LAD		 7045static void hci_le_create_big_complete_evt(struct hci_dev *hdev, void *data,
7046 struct sk_buff *skb)
7047{
7048 struct hci_evt_le_create_big_complete *ev = data;
7049 struct hci_conn *conn;
16e3b642 7050 __u8 i = 0;
eca0ae4a
LAD		 7051
7052 BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
7053
7054 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_CREATE_BIG_COMPLETE,
7055 flex_array_size(ev, bis_handle, ev->num_bis)))
7056 return;
7057
7058 hci_dev_lock(hdev);
a0bfde16 7059 rcu_read_lock();
eca0ae4a 7060
a0bfde16
IT		 7061 /* Connect all BISes that are bound to the BIG */
7062 list_for_each_entry_rcu(conn, &hdev->conn_hash.list, list) {
7063 if (bacmp(&conn->dst, BDADDR_ANY) ||
7064 conn->type != ISO_LINK ||
7065 conn->iso_qos.bcast.big != ev->handle)
7066 continue;
eca0ae4a 7067
16e3b642
LAD		 7068 if (hci_conn_set_handle(conn,
7069 __le16_to_cpu(ev->bis_handle[i++])))
7070 continue;
ed680f92 7071
a0bfde16
IT		 7072 if (!ev->status) {
7073 conn->state = BT_CONNECTED;
7074 set_bit(HCI_CONN_BIG_CREATED, &conn->flags);
7075 rcu_read_unlock();
7076 hci_debugfs_create_conn(conn);
7077 hci_conn_add_sysfs(conn);
7078 hci_iso_setup_path(conn);
7079 rcu_read_lock();
7080 continue;
7081 }
eca0ae4a 7082
a0bfde16
IT		 7083 hci_connect_cfm(conn, ev->status);
7084 rcu_read_unlock();
7085 hci_conn_del(conn);
7086 rcu_read_lock();
eca0ae4a
LAD		 7087 }
7088
acab8ff2
IT		 7089 rcu_read_unlock();
7090
16e3b642 7091 if (!ev->status && !i)
a0bfde16
IT		 7092 /* If no BISes have been connected for the BIG,
7093 * terminate. This is in case all bound connections
7094 * have been closed before the BIG creation
7095 * has completed.
7096 */
acab8ff2
IT		 7097 hci_cmd_sync_queue(hdev, hci_iso_term_big_sync,
7098 UINT_PTR(ev->handle), NULL);
eca0ae4a 7099
eca0ae4a
LAD		 7100 hci_dev_unlock(hdev);
7101}
7102
7103static void hci_le_big_sync_established_evt(struct hci_dev *hdev, void *data,
7104 struct sk_buff *skb)
7105{
7106 struct hci_evt_le_big_sync_estabilished *ev = data;
7107 struct hci_conn *bis;
7108 int i;
7109
7110 bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);
7111
7112 if (!hci_le_ev_skb_pull(hdev, skb, HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7113 flex_array_size(ev, bis, ev->num_bis)))
7114 return;
7115
eca0ae4a
LAD		 7116 hci_dev_lock(hdev);
7117
7118 for (i = 0; i < ev->num_bis; i++) {
7119 u16 handle = le16_to_cpu(ev->bis[i]);
7120 __le32 interval;
7121
7122 bis = hci_conn_hash_lookup_handle(hdev, handle);
7123 if (!bis) {
7124 bis = hci_conn_add(hdev, ISO_LINK, BDADDR_ANY,
181a42ed 7125 HCI_ROLE_SLAVE, handle);
eca0ae4a
LAD		 7126 if (!bis)
7127 continue;
eca0ae4a
LAD		 7128 }
7129
fbdc4bc4
IT		 7130 if (ev->status != 0x42)
7131 /* Mark PA sync as established */
7132 set_bit(HCI_CONN_PA_SYNC, &bis->flags);
7133
0fe8c8d0 7134 bis->iso_qos.bcast.big = ev->handle;
eca0ae4a
LAD		 7135 memset(&interval, 0, sizeof(interval));
7136 memcpy(&interval, ev->latency, sizeof(ev->latency));
0fe8c8d0 7137 bis->iso_qos.bcast.in.interval = le32_to_cpu(interval);
eca0ae4a 7138 /* Convert ISO Interval (1.25 ms slots) to latency (ms) */
0fe8c8d0
IT		 7139 bis->iso_qos.bcast.in.latency = le16_to_cpu(ev->interval) * 125 / 100;
7140 bis->iso_qos.bcast.in.sdu = le16_to_cpu(ev->max_pdu);
eca0ae4a 7141
f777d882
IT		 7142 if (!ev->status) {
7143 set_bit(HCI_CONN_BIG_SYNC, &bis->flags);
7144 hci_iso_setup_path(bis);
7145 }
eca0ae4a
LAD		 7146 }
7147
f777d882
IT		 7148 /* In case BIG sync failed, notify each failed connection to
7149 * the user after all hci connections have been added
7150 */
7151 if (ev->status)
7152 for (i = 0; i < ev->num_bis; i++) {
7153 u16 handle = le16_to_cpu(ev->bis[i]);
7154
7155 bis = hci_conn_hash_lookup_handle(hdev, handle);
7156
7157 set_bit(HCI_CONN_BIG_SYNC_FAILED, &bis->flags);
7158 hci_connect_cfm(bis, ev->status);
7159 }
7160
eca0ae4a
LAD		 7161 hci_dev_unlock(hdev);
7162}
7163
7164static void hci_le_big_info_adv_report_evt(struct hci_dev *hdev, void *data,
7165 struct sk_buff *skb)
7166{
7167 struct hci_evt_le_big_info_adv_report *ev = data;
7168 int mask = hdev->link_mode;
7169 __u8 flags = 0;
1d11d70d 7170 struct hci_conn *pa_sync;
eca0ae4a
LAD		 7171
7172 bt_dev_dbg(hdev, "sync_handle 0x%4.4x", le16_to_cpu(ev->sync_handle));
7173
7174 hci_dev_lock(hdev);
7175
7176 mask |= hci_proto_connect_ind(hdev, BDADDR_ANY, ISO_LINK, &flags);
1d11d70d 7177 if (!(mask & HCI_LM_ACCEPT)) {
eca0ae4a 7178 hci_le_pa_term_sync(hdev, ev->sync_handle);
1d11d70d
IT		 7179 goto unlock;
7180 }
eca0ae4a 7181
1d11d70d
IT		 7182 if (!(flags & HCI_PROTO_DEFER))
7183 goto unlock;
7184
7185 pa_sync = hci_conn_hash_lookup_pa_sync_handle
7186 (hdev,
7187 le16_to_cpu(ev->sync_handle));
7188
7189 if (pa_sync)
7190 goto unlock;
7191
7192 /* Add connection to indicate the PA sync event */
181a42ed
ZX		 7193 pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY,
7194 HCI_ROLE_SLAVE);
1d11d70d
IT		 7195
7196 if (!pa_sync)
7197 goto unlock;
7198
7199 pa_sync->sync_handle = le16_to_cpu(ev->sync_handle);
7200 set_bit(HCI_CONN_PA_SYNC, &pa_sync->flags);
7201
7202 /* Notify iso layer */
7203 hci_connect_cfm(pa_sync, 0x00);
7204
7205unlock:
eca0ae4a
LAD		 7206 hci_dev_unlock(hdev);
7207}
7208
95118dd4
LAD		 7209#define HCI_LE_EV_VL(_op, _func, _min_len, _max_len) \
7210[_op] = { \
7211 .func = _func, \
7212 .min_len = _min_len, \
7213 .max_len = _max_len, \
7214}
7215
7216#define HCI_LE_EV(_op, _func, _len) \
7217 HCI_LE_EV_VL(_op, _func, _len, _len)
7218
7219#define HCI_LE_EV_STATUS(_op, _func) \
7220 HCI_LE_EV(_op, _func, sizeof(struct hci_ev_status))
7221
7222/* Entries in this table shall have their position according to the subevent
7223 * opcode they handle so the use of the macros above is recommend since it does
7224 * attempt to initialize at its proper index using Designated Initializers that
7225 * way events without a callback function can be ommited.
7226 */
7227static const struct hci_le_ev {
7228 void (*func)(struct hci_dev *hdev, void *data, struct sk_buff *skb);
7229 u16 min_len;
7230 u16 max_len;
7231} hci_le_ev_table[U8_MAX + 1] = {
7232 /* [0x01 = HCI_EV_LE_CONN_COMPLETE] */
7233 HCI_LE_EV(HCI_EV_LE_CONN_COMPLETE, hci_le_conn_complete_evt,
7234 sizeof(struct hci_ev_le_conn_complete)),
7235 /* [0x02 = HCI_EV_LE_ADVERTISING_REPORT] */
7236 HCI_LE_EV_VL(HCI_EV_LE_ADVERTISING_REPORT, hci_le_adv_report_evt,
7237 sizeof(struct hci_ev_le_advertising_report),
7238 HCI_MAX_EVENT_SIZE),
7239 /* [0x03 = HCI_EV_LE_CONN_UPDATE_COMPLETE] */
7240 HCI_LE_EV(HCI_EV_LE_CONN_UPDATE_COMPLETE,
7241 hci_le_conn_update_complete_evt,
7242 sizeof(struct hci_ev_le_conn_update_complete)),
7243 /* [0x04 = HCI_EV_LE_REMOTE_FEAT_COMPLETE] */
7244 HCI_LE_EV(HCI_EV_LE_REMOTE_FEAT_COMPLETE,
7245 hci_le_remote_feat_complete_evt,
7246 sizeof(struct hci_ev_le_remote_feat_complete)),
7247 /* [0x05 = HCI_EV_LE_LTK_REQ] */
7248 HCI_LE_EV(HCI_EV_LE_LTK_REQ, hci_le_ltk_request_evt,
7249 sizeof(struct hci_ev_le_ltk_req)),
7250 /* [0x06 = HCI_EV_LE_REMOTE_CONN_PARAM_REQ] */
7251 HCI_LE_EV(HCI_EV_LE_REMOTE_CONN_PARAM_REQ,
7252 hci_le_remote_conn_param_req_evt,
7253 sizeof(struct hci_ev_le_remote_conn_param_req)),
7254 /* [0x0a = HCI_EV_LE_ENHANCED_CONN_COMPLETE] */
7255 HCI_LE_EV(HCI_EV_LE_ENHANCED_CONN_COMPLETE,
7256 hci_le_enh_conn_complete_evt,
7257 sizeof(struct hci_ev_le_enh_conn_complete)),
7258 /* [0x0b = HCI_EV_LE_DIRECT_ADV_REPORT] */
7259 HCI_LE_EV_VL(HCI_EV_LE_DIRECT_ADV_REPORT, hci_le_direct_adv_report_evt,
7260 sizeof(struct hci_ev_le_direct_adv_report),
7261 HCI_MAX_EVENT_SIZE),
7262 /* [0x0c = HCI_EV_LE_PHY_UPDATE_COMPLETE] */
7263 HCI_LE_EV(HCI_EV_LE_PHY_UPDATE_COMPLETE, hci_le_phy_update_evt,
7264 sizeof(struct hci_ev_le_phy_update_complete)),
7265 /* [0x0d = HCI_EV_LE_EXT_ADV_REPORT] */
7266 HCI_LE_EV_VL(HCI_EV_LE_EXT_ADV_REPORT, hci_le_ext_adv_report_evt,
7267 sizeof(struct hci_ev_le_ext_adv_report),
7268 HCI_MAX_EVENT_SIZE),
eca0ae4a
LAD		 7269 /* [0x0e = HCI_EV_LE_PA_SYNC_ESTABLISHED] */
7270 HCI_LE_EV(HCI_EV_LE_PA_SYNC_ESTABLISHED,
7271 hci_le_pa_sync_estabilished_evt,
7272 sizeof(struct hci_ev_le_pa_sync_established)),
9c082631
CD		 7273 /* [0x0f = HCI_EV_LE_PER_ADV_REPORT] */
7274 HCI_LE_EV_VL(HCI_EV_LE_PER_ADV_REPORT,
7275 hci_le_per_adv_report_evt,
7276 sizeof(struct hci_ev_le_per_adv_report),
7277 HCI_MAX_EVENT_SIZE),
95118dd4
LAD		 7278 /* [0x12 = HCI_EV_LE_EXT_ADV_SET_TERM] */
7279 HCI_LE_EV(HCI_EV_LE_EXT_ADV_SET_TERM, hci_le_ext_adv_term_evt,
7280 sizeof(struct hci_evt_le_ext_adv_set_term)),
26afbd82
LAD		 7281 /* [0x19 = HCI_EVT_LE_CIS_ESTABLISHED] */
7282 HCI_LE_EV(HCI_EVT_LE_CIS_ESTABLISHED, hci_le_cis_estabilished_evt,
7283 sizeof(struct hci_evt_le_cis_established)),
7284 /* [0x1a = HCI_EVT_LE_CIS_REQ] */
7285 HCI_LE_EV(HCI_EVT_LE_CIS_REQ, hci_le_cis_req_evt,
7286 sizeof(struct hci_evt_le_cis_req)),
eca0ae4a
LAD		 7287 /* [0x1b = HCI_EVT_LE_CREATE_BIG_COMPLETE] */
7288 HCI_LE_EV_VL(HCI_EVT_LE_CREATE_BIG_COMPLETE,
7289 hci_le_create_big_complete_evt,
7290 sizeof(struct hci_evt_le_create_big_complete),
7291 HCI_MAX_EVENT_SIZE),
7292 /* [0x1d = HCI_EV_LE_BIG_SYNC_ESTABILISHED] */
7293 HCI_LE_EV_VL(HCI_EVT_LE_BIG_SYNC_ESTABILISHED,
7294 hci_le_big_sync_established_evt,
7295 sizeof(struct hci_evt_le_big_sync_estabilished),
7296 HCI_MAX_EVENT_SIZE),
7297 /* [0x22 = HCI_EVT_LE_BIG_INFO_ADV_REPORT] */
7298 HCI_LE_EV_VL(HCI_EVT_LE_BIG_INFO_ADV_REPORT,
7299 hci_le_big_info_adv_report_evt,
7300 sizeof(struct hci_evt_le_big_info_adv_report),
7301 HCI_MAX_EVENT_SIZE),
95118dd4
LAD		 7302};
7303
3e54c589 7304static void hci_le_meta_evt(struct hci_dev *hdev, void *data,
85b56857
LAD		 7305 struct sk_buff *skb, u16 *opcode, u8 *status,
7306 hci_req_complete_t *req_complete,
7307 hci_req_complete_skb_t *req_complete_skb)
fcd89c09 7308{
3e54c589 7309 struct hci_ev_le_meta *ev = data;
95118dd4 7310 const struct hci_le_ev *subev;
fcd89c09 7311
95118dd4 7312 bt_dev_dbg(hdev, "subevent 0x%2.2x", ev->subevent);
2f010b55 7313
85b56857
LAD		 7314 /* Only match event if command OGF is for LE */
7315 if (hdev->sent_cmd &&
7316 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) == 0x08 &&
7317 hci_skb_event(hdev->sent_cmd) == ev->subevent) {
7318 *opcode = hci_skb_opcode(hdev->sent_cmd);
7319 hci_req_cmd_complete(hdev, *opcode, 0x00, req_complete,
7320 req_complete_skb);
7321 }
7322
95118dd4
LAD		 7323 subev = &hci_le_ev_table[ev->subevent];
7324 if (!subev->func)
7325 return;
1efd927d 7326
95118dd4
LAD		 7327 if (skb->len < subev->min_len) {
7328 bt_dev_err(hdev, "unexpected subevent 0x%2.2x length: %u < %u",
7329 ev->subevent, skb->len, subev->min_len);
7330 return;
7331 }
c215e939 7332
95118dd4
LAD		 7333 /* Just warn if the length is over max_len size it still be
7334 * possible to partially parse the event so leave to callback to
7335 * decide if that is acceptable.
7336 */
7337 if (skb->len > subev->max_len)
7338 bt_dev_warn(hdev, "unexpected subevent 0x%2.2x length: %u > %u",
7339 ev->subevent, skb->len, subev->max_len);
95118dd4
LAD		 7340 data = hci_le_ev_skb_pull(hdev, skb, ev->subevent, subev->min_len);
7341 if (!data)
7342 return;
acf0aeae 7343
95118dd4 7344 subev->func(hdev, data, skb);
fcd89c09
VT		 7345}
7346
757aa0b5
JH		 7347static bool hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode,
7348 u8 event, struct sk_buff *skb)
7349{
7350 struct hci_ev_cmd_complete *ev;
7351 struct hci_event_hdr *hdr;
7352
7353 if (!skb)
7354 return false;
7355
e3f3a1ae
LAD		 7356 hdr = hci_ev_skb_pull(hdev, skb, event, sizeof(*hdr));
7357 if (!hdr)
757aa0b5 7358 return false;
757aa0b5
JH		 7359
7360 if (event) {
7361 if (hdr->evt != event)
7362 return false;
7363 return true;
7364 }
7365
91641b79 7366 /* Check if request ended in Command Status - no way to retrieve
1629db9c
JH		 7367 * any extra parameters in this case.
7368 */
7369 if (hdr->evt == HCI_EV_CMD_STATUS)
7370 return false;
7371
757aa0b5 7372 if (hdr->evt != HCI_EV_CMD_COMPLETE) {
2064ee33
MH		 7373 bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)",
7374 hdr->evt);
757aa0b5
JH		 7375 return false;
7376 }
7377
e3f3a1ae
LAD		 7378 ev = hci_cc_skb_pull(hdev, skb, opcode, sizeof(*ev));
7379 if (!ev)
757aa0b5 7380 return false;
757aa0b5
JH		 7381
7382 if (opcode != __le16_to_cpu(ev->opcode)) {
7383 BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode,
7384 __le16_to_cpu(ev->opcode));
7385 return false;
7386 }
7387
7388 return true;
7389}
7390
2f20216c
APS		 7391static void hci_store_wake_reason(struct hci_dev *hdev, u8 event,
7392 struct sk_buff *skb)
7393{
7394 struct hci_ev_le_advertising_info *adv;
7395 struct hci_ev_le_direct_adv_info *direct_adv;
b48b833f 7396 struct hci_ev_le_ext_adv_info *ext_adv;
2f20216c
APS		 7397 const struct hci_ev_conn_complete *conn_complete = (void *)skb->data;
7398 const struct hci_ev_conn_request *conn_request = (void *)skb->data;
7399
7400 hci_dev_lock(hdev);
7401
7402 /* If we are currently suspended and this is the first BT event seen,
7403 * save the wake reason associated with the event.
7404 */
7405 if (!hdev->suspended || hdev->wake_reason)
7406 goto unlock;
7407
7408 /* Default to remote wake. Values for wake_reason are documented in the
7409 * Bluez mgmt api docs.
7410 */
7411 hdev->wake_reason = MGMT_WAKE_REASON_REMOTE_WAKE;
7412
7413 /* Once configured for remote wakeup, we should only wake up for
7414 * reconnections. It's useful to see which device is waking us up so
7415 * keep track of the bdaddr of the connection event that woke us up.
7416 */
7417 if (event == HCI_EV_CONN_REQUEST) {
7418 bacpy(&hdev->wake_addr, &conn_complete->bdaddr);
7419 hdev->wake_addr_type = BDADDR_BREDR;
7420 } else if (event == HCI_EV_CONN_COMPLETE) {
7421 bacpy(&hdev->wake_addr, &conn_request->bdaddr);
7422 hdev->wake_addr_type = BDADDR_BREDR;
7423 } else if (event == HCI_EV_LE_META) {
7424 struct hci_ev_le_meta *le_ev = (void *)skb->data;
7425 u8 subevent = le_ev->subevent;
7426 u8 *ptr = &skb->data[sizeof(*le_ev)];
7427 u8 num_reports = *ptr;
7428
7429 if ((subevent == HCI_EV_LE_ADVERTISING_REPORT ||
7430 subevent == HCI_EV_LE_DIRECT_ADV_REPORT ||
7431 subevent == HCI_EV_LE_EXT_ADV_REPORT) &&
7432 num_reports) {
7433 adv = (void *)(ptr + 1);
7434 direct_adv = (void *)(ptr + 1);
7435 ext_adv = (void *)(ptr + 1);
7436
7437 switch (subevent) {
7438 case HCI_EV_LE_ADVERTISING_REPORT:
7439 bacpy(&hdev->wake_addr, &adv->bdaddr);
7440 hdev->wake_addr_type = adv->bdaddr_type;
7441 break;
7442 case HCI_EV_LE_DIRECT_ADV_REPORT:
7443 bacpy(&hdev->wake_addr, &direct_adv->bdaddr);
7444 hdev->wake_addr_type = direct_adv->bdaddr_type;
7445 break;
7446 case HCI_EV_LE_EXT_ADV_REPORT:
7447 bacpy(&hdev->wake_addr, &ext_adv->bdaddr);
7448 hdev->wake_addr_type = ext_adv->bdaddr_type;
7449 break;
7450 }
7451 }
7452 } else {
7453 hdev->wake_reason = MGMT_WAKE_REASON_UNEXPECTED;
7454 }
7455
7456unlock:
7457 hci_dev_unlock(hdev);
7458}
7459
3e54c589
LAD		 7460#define HCI_EV_VL(_op, _func, _min_len, _max_len) \
7461[_op] = { \
7462 .req = false, \
7463 .func = _func, \
7464 .min_len = _min_len, \
7465 .max_len = _max_len, \
7466}
7467
7468#define HCI_EV(_op, _func, _len) \
7469 HCI_EV_VL(_op, _func, _len, _len)
7470
7471#define HCI_EV_STATUS(_op, _func) \
7472 HCI_EV(_op, _func, sizeof(struct hci_ev_status))
7473
7474#define HCI_EV_REQ_VL(_op, _func, _min_len, _max_len) \
7475[_op] = { \
7476 .req = true, \
7477 .func_req = _func, \
7478 .min_len = _min_len, \
7479 .max_len = _max_len, \
7480}
7481
7482#define HCI_EV_REQ(_op, _func, _len) \
7483 HCI_EV_REQ_VL(_op, _func, _len, _len)
7484
7485/* Entries in this table shall have their position according to the event opcode
7486 * they handle so the use of the macros above is recommend since it does attempt
7487 * to initialize at its proper index using Designated Initializers that way
7488 * events without a callback function don't have entered.
7489 */
7490static const struct hci_ev {
7491 bool req;
7492 union {
7493 void (*func)(struct hci_dev *hdev, void *data,
7494 struct sk_buff *skb);
7495 void (*func_req)(struct hci_dev *hdev, void *data,
7496 struct sk_buff *skb, u16 *opcode, u8 *status,
7497 hci_req_complete_t *req_complete,
7498 hci_req_complete_skb_t *req_complete_skb);
7499 };
7500 u16 min_len;
7501 u16 max_len;
7502} hci_ev_table[U8_MAX + 1] = {
7503 /* [0x01 = HCI_EV_INQUIRY_COMPLETE] */
7504 HCI_EV_STATUS(HCI_EV_INQUIRY_COMPLETE, hci_inquiry_complete_evt),
7505 /* [0x02 = HCI_EV_INQUIRY_RESULT] */
7506 HCI_EV_VL(HCI_EV_INQUIRY_RESULT, hci_inquiry_result_evt,
7507 sizeof(struct hci_ev_inquiry_result), HCI_MAX_EVENT_SIZE),
7508 /* [0x03 = HCI_EV_CONN_COMPLETE] */
7509 HCI_EV(HCI_EV_CONN_COMPLETE, hci_conn_complete_evt,
7510 sizeof(struct hci_ev_conn_complete)),
7511 /* [0x04 = HCI_EV_CONN_REQUEST] */
7512 HCI_EV(HCI_EV_CONN_REQUEST, hci_conn_request_evt,
7513 sizeof(struct hci_ev_conn_request)),
7514 /* [0x05 = HCI_EV_DISCONN_COMPLETE] */
7515 HCI_EV(HCI_EV_DISCONN_COMPLETE, hci_disconn_complete_evt,
7516 sizeof(struct hci_ev_disconn_complete)),
7517 /* [0x06 = HCI_EV_AUTH_COMPLETE] */
7518 HCI_EV(HCI_EV_AUTH_COMPLETE, hci_auth_complete_evt,
7519 sizeof(struct hci_ev_auth_complete)),
7520 /* [0x07 = HCI_EV_REMOTE_NAME] */
7521 HCI_EV(HCI_EV_REMOTE_NAME, hci_remote_name_evt,
7522 sizeof(struct hci_ev_remote_name)),
7523 /* [0x08 = HCI_EV_ENCRYPT_CHANGE] */
7524 HCI_EV(HCI_EV_ENCRYPT_CHANGE, hci_encrypt_change_evt,
7525 sizeof(struct hci_ev_encrypt_change)),
7526 /* [0x09 = HCI_EV_CHANGE_LINK_KEY_COMPLETE] */
7527 HCI_EV(HCI_EV_CHANGE_LINK_KEY_COMPLETE,
7528 hci_change_link_key_complete_evt,
7529 sizeof(struct hci_ev_change_link_key_complete)),
7530 /* [0x0b = HCI_EV_REMOTE_FEATURES] */
7531 HCI_EV(HCI_EV_REMOTE_FEATURES, hci_remote_features_evt,
7532 sizeof(struct hci_ev_remote_features)),
7533 /* [0x0e = HCI_EV_CMD_COMPLETE] */
7534 HCI_EV_REQ_VL(HCI_EV_CMD_COMPLETE, hci_cmd_complete_evt,
7535 sizeof(struct hci_ev_cmd_complete), HCI_MAX_EVENT_SIZE),
7536 /* [0x0f = HCI_EV_CMD_STATUS] */
7537 HCI_EV_REQ(HCI_EV_CMD_STATUS, hci_cmd_status_evt,
7538 sizeof(struct hci_ev_cmd_status)),
7539 /* [0x10 = HCI_EV_CMD_STATUS] */
7540 HCI_EV(HCI_EV_HARDWARE_ERROR, hci_hardware_error_evt,
7541 sizeof(struct hci_ev_hardware_error)),
7542 /* [0x12 = HCI_EV_ROLE_CHANGE] */
7543 HCI_EV(HCI_EV_ROLE_CHANGE, hci_role_change_evt,
7544 sizeof(struct hci_ev_role_change)),
7545 /* [0x13 = HCI_EV_NUM_COMP_PKTS] */
7546 HCI_EV_VL(HCI_EV_NUM_COMP_PKTS, hci_num_comp_pkts_evt,
7547 sizeof(struct hci_ev_num_comp_pkts), HCI_MAX_EVENT_SIZE),
7548 /* [0x14 = HCI_EV_MODE_CHANGE] */
7549 HCI_EV(HCI_EV_MODE_CHANGE, hci_mode_change_evt,
7550 sizeof(struct hci_ev_mode_change)),
7551 /* [0x16 = HCI_EV_PIN_CODE_REQ] */
7552 HCI_EV(HCI_EV_PIN_CODE_REQ, hci_pin_code_request_evt,
7553 sizeof(struct hci_ev_pin_code_req)),
7554 /* [0x17 = HCI_EV_LINK_KEY_REQ] */
7555 HCI_EV(HCI_EV_LINK_KEY_REQ, hci_link_key_request_evt,
7556 sizeof(struct hci_ev_link_key_req)),
7557 /* [0x18 = HCI_EV_LINK_KEY_NOTIFY] */
7558 HCI_EV(HCI_EV_LINK_KEY_NOTIFY, hci_link_key_notify_evt,
7559 sizeof(struct hci_ev_link_key_notify)),
7560 /* [0x1c = HCI_EV_CLOCK_OFFSET] */
7561 HCI_EV(HCI_EV_CLOCK_OFFSET, hci_clock_offset_evt,
7562 sizeof(struct hci_ev_clock_offset)),
7563 /* [0x1d = HCI_EV_PKT_TYPE_CHANGE] */
7564 HCI_EV(HCI_EV_PKT_TYPE_CHANGE, hci_pkt_type_change_evt,
7565 sizeof(struct hci_ev_pkt_type_change)),
7566 /* [0x20 = HCI_EV_PSCAN_REP_MODE] */
7567 HCI_EV(HCI_EV_PSCAN_REP_MODE, hci_pscan_rep_mode_evt,
7568 sizeof(struct hci_ev_pscan_rep_mode)),
7569 /* [0x22 = HCI_EV_INQUIRY_RESULT_WITH_RSSI] */
7570 HCI_EV_VL(HCI_EV_INQUIRY_RESULT_WITH_RSSI,
7571 hci_inquiry_result_with_rssi_evt,
7572 sizeof(struct hci_ev_inquiry_result_rssi),
7573 HCI_MAX_EVENT_SIZE),
7574 /* [0x23 = HCI_EV_REMOTE_EXT_FEATURES] */
7575 HCI_EV(HCI_EV_REMOTE_EXT_FEATURES, hci_remote_ext_features_evt,
7576 sizeof(struct hci_ev_remote_ext_features)),
7577 /* [0x2c = HCI_EV_SYNC_CONN_COMPLETE] */
7578 HCI_EV(HCI_EV_SYNC_CONN_COMPLETE, hci_sync_conn_complete_evt,
7579 sizeof(struct hci_ev_sync_conn_complete)),
7580 /* [0x2d = HCI_EV_EXTENDED_INQUIRY_RESULT] */
7581 HCI_EV_VL(HCI_EV_EXTENDED_INQUIRY_RESULT,
7582 hci_extended_inquiry_result_evt,
7583 sizeof(struct hci_ev_ext_inquiry_result), HCI_MAX_EVENT_SIZE),
7584 /* [0x30 = HCI_EV_KEY_REFRESH_COMPLETE] */
7585 HCI_EV(HCI_EV_KEY_REFRESH_COMPLETE, hci_key_refresh_complete_evt,
7586 sizeof(struct hci_ev_key_refresh_complete)),
7587 /* [0x31 = HCI_EV_IO_CAPA_REQUEST] */
7588 HCI_EV(HCI_EV_IO_CAPA_REQUEST, hci_io_capa_request_evt,
7589 sizeof(struct hci_ev_io_capa_request)),
7590 /* [0x32 = HCI_EV_IO_CAPA_REPLY] */
7591 HCI_EV(HCI_EV_IO_CAPA_REPLY, hci_io_capa_reply_evt,
7592 sizeof(struct hci_ev_io_capa_reply)),
7593 /* [0x33 = HCI_EV_USER_CONFIRM_REQUEST] */
7594 HCI_EV(HCI_EV_USER_CONFIRM_REQUEST, hci_user_confirm_request_evt,
7595 sizeof(struct hci_ev_user_confirm_req)),
7596 /* [0x34 = HCI_EV_USER_PASSKEY_REQUEST] */
7597 HCI_EV(HCI_EV_USER_PASSKEY_REQUEST, hci_user_passkey_request_evt,
7598 sizeof(struct hci_ev_user_passkey_req)),
7599 /* [0x35 = HCI_EV_REMOTE_OOB_DATA_REQUEST] */
7600 HCI_EV(HCI_EV_REMOTE_OOB_DATA_REQUEST, hci_remote_oob_data_request_evt,
7601 sizeof(struct hci_ev_remote_oob_data_request)),
7602 /* [0x36 = HCI_EV_SIMPLE_PAIR_COMPLETE] */
7603 HCI_EV(HCI_EV_SIMPLE_PAIR_COMPLETE, hci_simple_pair_complete_evt,
7604 sizeof(struct hci_ev_simple_pair_complete)),
7605 /* [0x3b = HCI_EV_USER_PASSKEY_NOTIFY] */
7606 HCI_EV(HCI_EV_USER_PASSKEY_NOTIFY, hci_user_passkey_notify_evt,
7607 sizeof(struct hci_ev_user_passkey_notify)),
7608 /* [0x3c = HCI_EV_KEYPRESS_NOTIFY] */
7609 HCI_EV(HCI_EV_KEYPRESS_NOTIFY, hci_keypress_notify_evt,
7610 sizeof(struct hci_ev_keypress_notify)),
7611 /* [0x3d = HCI_EV_REMOTE_HOST_FEATURES] */
7612 HCI_EV(HCI_EV_REMOTE_HOST_FEATURES, hci_remote_host_features_evt,
7613 sizeof(struct hci_ev_remote_host_features)),
7614 /* [0x3e = HCI_EV_LE_META] */
85b56857
LAD		 7615 HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt,
7616 sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE),
3e54c589
LAD		 7617#if IS_ENABLED(CONFIG_BT_HS)
7618 /* [0x40 = HCI_EV_PHY_LINK_COMPLETE] */
7619 HCI_EV(HCI_EV_PHY_LINK_COMPLETE, hci_phy_link_complete_evt,
7620 sizeof(struct hci_ev_phy_link_complete)),
7621 /* [0x41 = HCI_EV_CHANNEL_SELECTED] */
7622 HCI_EV(HCI_EV_CHANNEL_SELECTED, hci_chan_selected_evt,
7623 sizeof(struct hci_ev_channel_selected)),
7624 /* [0x42 = HCI_EV_DISCONN_PHY_LINK_COMPLETE] */
7625 HCI_EV(HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE,
7626 hci_disconn_loglink_complete_evt,
7627 sizeof(struct hci_ev_disconn_logical_link_complete)),
7628 /* [0x45 = HCI_EV_LOGICAL_LINK_COMPLETE] */
7629 HCI_EV(HCI_EV_LOGICAL_LINK_COMPLETE, hci_loglink_complete_evt,
7630 sizeof(struct hci_ev_logical_link_complete)),
7631 /* [0x46 = HCI_EV_DISCONN_LOGICAL_LINK_COMPLETE] */
7632 HCI_EV(HCI_EV_DISCONN_PHY_LINK_COMPLETE,
7633 hci_disconn_phylink_complete_evt,
7634 sizeof(struct hci_ev_disconn_phy_link_complete)),
7635#endif
7636 /* [0x48 = HCI_EV_NUM_COMP_BLOCKS] */
7637 HCI_EV(HCI_EV_NUM_COMP_BLOCKS, hci_num_comp_blocks_evt,
7638 sizeof(struct hci_ev_num_comp_blocks)),
7639 /* [0xff = HCI_EV_VENDOR] */
314d8cd2 7640 HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE),
3e54c589
LAD		 7641};
7642
7643static void hci_event_func(struct hci_dev *hdev, u8 event, struct sk_buff *skb,
7644 u16 *opcode, u8 *status,
7645 hci_req_complete_t *req_complete,
7646 hci_req_complete_skb_t *req_complete_skb)
7647{
7648 const struct hci_ev *ev = &hci_ev_table[event];
7649 void *data;
7650
7651 if (!ev->func)
7652 return;
7653
7654 if (skb->len < ev->min_len) {
7655 bt_dev_err(hdev, "unexpected event 0x%2.2x length: %u < %u",
7656 event, skb->len, ev->min_len);
7657 return;
7658 }
7659
7660 /* Just warn if the length is over max_len size it still be
7661 * possible to partially parse the event so leave to callback to
7662 * decide if that is acceptable.
7663 */
7664 if (skb->len > ev->max_len)
314d8cd2
LAD		 7665 bt_dev_warn_ratelimited(hdev,
7666 "unexpected event 0x%2.2x length: %u > %u",
7667 event, skb->len, ev->max_len);
3e54c589
LAD		 7668
7669 data = hci_ev_skb_pull(hdev, skb, event, ev->min_len);
7670 if (!data)
7671 return;
7672
7673 if (ev->req)
7674 ev->func_req(hdev, data, skb, opcode, status, req_complete,
7675 req_complete_skb);
7676 else
7677 ev->func(hdev, data, skb);
7678}
7679
a9de9248
MH		 7680void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
7681{
7682 struct hci_event_hdr *hdr = (void *) skb->data;
e6214487
JH		 7683 hci_req_complete_t req_complete = NULL;
7684 hci_req_complete_skb_t req_complete_skb = NULL;
7685 struct sk_buff *orig_skb = NULL;
e3f3a1ae 7686 u8 status = 0, event, req_evt = 0;
e6214487 7687 u16 opcode = HCI_OP_NOP;
a9de9248 7688
e3f3a1ae
LAD		 7689 if (skb->len < sizeof(*hdr)) {
7690 bt_dev_err(hdev, "Malformed HCI Event");
7691 goto done;
7692 }
7693
dfe6d5c3
LAD		 7694 kfree_skb(hdev->recv_event);
7695 hdev->recv_event = skb_clone(skb, GFP_KERNEL);
7696
e3f3a1ae 7697 event = hdr->evt;
08bb4da9 7698 if (!event) {
3e54c589
LAD		 7699 bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x",
7700 event);
08bb4da9
AM		 7701 goto done;
7702 }
7703
85b56857
LAD		 7704 /* Only match event if command OGF is not for LE */
7705 if (hdev->sent_cmd &&
7706 hci_opcode_ogf(hci_skb_opcode(hdev->sent_cmd)) != 0x08 &&
7707 hci_skb_event(hdev->sent_cmd) == event) {
7708 hci_req_cmd_complete(hdev, hci_skb_opcode(hdev->sent_cmd),
7709 status, &req_complete, &req_complete_skb);
757aa0b5 7710 req_evt = event;
02350a72
JH		 7711 }
7712
e6214487
JH		 7713 /* If it looks like we might end up having to call
7714 * req_complete_skb, store a pristine copy of the skb since the
7715 * various handlers may modify the original one through
7716 * skb_pull() calls, etc.
7717 */
7718 if (req_complete_skb || event == HCI_EV_CMD_STATUS ||
7719 event == HCI_EV_CMD_COMPLETE)
7720 orig_skb = skb_clone(skb, GFP_KERNEL);
7721
7722 skb_pull(skb, HCI_EVENT_HDR_SIZE);
7723
2f20216c
APS		 7724 /* Store wake reason if we're suspended */
7725 hci_store_wake_reason(hdev, event, skb);
7726
3e54c589 7727 bt_dev_dbg(hdev, "event 0x%2.2x", event);
a9de9248 7728
3e54c589
LAD		 7729 hci_event_func(hdev, event, skb, &opcode, &status, &req_complete,
7730 &req_complete_skb);
1da177e4 7731
757aa0b5 7732 if (req_complete) {
e6214487 7733 req_complete(hdev, status, opcode);
757aa0b5
JH		 7734 } else if (req_complete_skb) {
7735 if (!hci_get_cmd_complete(hdev, opcode, req_evt, orig_skb)) {
7736 kfree_skb(orig_skb);
7737 orig_skb = NULL;
7738 }
e6214487 7739 req_complete_skb(hdev, status, opcode, orig_skb);
757aa0b5 7740 }
e6214487 7741
08bb4da9 7742done:
e6214487 7743 kfree_skb(orig_skb);
1da177e4
LT		 7744 kfree_skb(skb);
7745 hdev->stat.evt_rx++;
7746}
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