1 | /* |
2 | BlueZ - Bluetooth protocol stack for Linux |
3 | Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. |
4 | Copyright 2023 NXP |
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 |
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 |
19 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
20 | |
21 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
22 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
23 | SOFTWARE IS DISCLAIMED. |
24 | */ |
25 | |
26 | /* Bluetooth HCI event handling. */ |
27 | |
28 | #include <asm/unaligned.h> |
29 | #include <linux/crypto.h> |
30 | #include <crypto/algapi.h> |
31 | |
32 | #include <net/bluetooth/bluetooth.h> |
33 | #include <net/bluetooth/hci_core.h> |
34 | #include <net/bluetooth/mgmt.h> |
35 | |
36 | #include "hci_request.h" |
37 | #include "hci_debugfs.h" |
38 | #include "hci_codec.h" |
39 | #include "a2mp.h" |
40 | #include "amp.h" |
41 | #include "smp.h" |
42 | #include "msft.h" |
43 | #include "eir.h" |
44 | |
45 | #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \ |
46 | "\x00\x00\x00\x00\x00\x00\x00\x00" |
47 | |
48 | #define secs_to_jiffies(_secs) msecs_to_jiffies((_secs) * 1000) |
49 | |
50 | /* Handle HCI Event packets */ |
51 | |
52 | static 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 | |
64 | static 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 | |
76 | static 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 | |
88 | static u8 hci_cc_inquiry_cancel(struct hci_dev *hdev, void *data, |
89 | struct sk_buff *skb) |
90 | { |
91 | struct hci_ev_status *rp = data; |
92 | |
93 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
94 | |
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 | */ |
102 | if (rp->status == 0x0c && !test_bit(HCI_INQUIRY, &hdev->flags)) { |
103 | bt_dev_warn(hdev, "Ignoring error of Inquiry Cancel command" ); |
104 | rp->status = 0x00; |
105 | } |
106 | |
107 | if (rp->status) |
108 | return rp->status; |
109 | |
110 | clear_bit(nr: HCI_INQUIRY, addr: &hdev->flags); |
111 | smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ |
112 | wake_up_bit(word: &hdev->flags, bit: HCI_INQUIRY); |
113 | |
114 | hci_dev_lock(hdev); |
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, state: DISCOVERY_STOPPED); |
121 | hci_dev_unlock(hdev); |
122 | |
123 | hci_conn_check_pending(hdev); |
124 | |
125 | return rp->status; |
126 | } |
127 | |
128 | static u8 hci_cc_periodic_inq(struct hci_dev *hdev, void *data, |
129 | struct sk_buff *skb) |
130 | { |
131 | struct hci_ev_status *rp = data; |
132 | |
133 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
134 | |
135 | if (rp->status) |
136 | return rp->status; |
137 | |
138 | hci_dev_set_flag(hdev, HCI_PERIODIC_INQ); |
139 | |
140 | return rp->status; |
141 | } |
142 | |
143 | static u8 hci_cc_exit_periodic_inq(struct hci_dev *hdev, void *data, |
144 | struct sk_buff *skb) |
145 | { |
146 | struct hci_ev_status *rp = data; |
147 | |
148 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
149 | |
150 | if (rp->status) |
151 | return rp->status; |
152 | |
153 | hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); |
154 | |
155 | hci_conn_check_pending(hdev); |
156 | |
157 | return rp->status; |
158 | } |
159 | |
160 | static u8 hci_cc_remote_name_req_cancel(struct hci_dev *hdev, void *data, |
161 | struct sk_buff *skb) |
162 | { |
163 | struct hci_ev_status *rp = data; |
164 | |
165 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
166 | |
167 | return rp->status; |
168 | } |
169 | |
170 | static u8 hci_cc_role_discovery(struct hci_dev *hdev, void *data, |
171 | struct sk_buff *skb) |
172 | { |
173 | struct hci_rp_role_discovery *rp = data; |
174 | struct hci_conn *conn; |
175 | |
176 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
177 | |
178 | if (rp->status) |
179 | return rp->status; |
180 | |
181 | hci_dev_lock(hdev); |
182 | |
183 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
184 | if (conn) |
185 | conn->role = rp->role; |
186 | |
187 | hci_dev_unlock(hdev); |
188 | |
189 | return rp->status; |
190 | } |
191 | |
192 | static u8 hci_cc_read_link_policy(struct hci_dev *hdev, void *data, |
193 | struct sk_buff *skb) |
194 | { |
195 | struct hci_rp_read_link_policy *rp = data; |
196 | struct hci_conn *conn; |
197 | |
198 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
199 | |
200 | if (rp->status) |
201 | return rp->status; |
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); |
210 | |
211 | return rp->status; |
212 | } |
213 | |
214 | static u8 hci_cc_write_link_policy(struct hci_dev *hdev, void *data, |
215 | struct sk_buff *skb) |
216 | { |
217 | struct hci_rp_write_link_policy *rp = data; |
218 | struct hci_conn *conn; |
219 | void *sent; |
220 | |
221 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
222 | |
223 | if (rp->status) |
224 | return rp->status; |
225 | |
226 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LINK_POLICY); |
227 | if (!sent) |
228 | return rp->status; |
229 | |
230 | hci_dev_lock(hdev); |
231 | |
232 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
233 | if (conn) |
234 | conn->link_policy = get_unaligned_le16(p: sent + 2); |
235 | |
236 | hci_dev_unlock(hdev); |
237 | |
238 | return rp->status; |
239 | } |
240 | |
241 | static u8 hci_cc_read_def_link_policy(struct hci_dev *hdev, void *data, |
242 | struct sk_buff *skb) |
243 | { |
244 | struct hci_rp_read_def_link_policy *rp = data; |
245 | |
246 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
247 | |
248 | if (rp->status) |
249 | return rp->status; |
250 | |
251 | hdev->link_policy = __le16_to_cpu(rp->policy); |
252 | |
253 | return rp->status; |
254 | } |
255 | |
256 | static u8 hci_cc_write_def_link_policy(struct hci_dev *hdev, void *data, |
257 | struct sk_buff *skb) |
258 | { |
259 | struct hci_ev_status *rp = data; |
260 | void *sent; |
261 | |
262 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
263 | |
264 | if (rp->status) |
265 | return rp->status; |
266 | |
267 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_LINK_POLICY); |
268 | if (!sent) |
269 | return rp->status; |
270 | |
271 | hdev->link_policy = get_unaligned_le16(p: sent); |
272 | |
273 | return rp->status; |
274 | } |
275 | |
276 | static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb) |
277 | { |
278 | struct hci_ev_status *rp = data; |
279 | |
280 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
281 | |
282 | clear_bit(nr: HCI_RESET, addr: &hdev->flags); |
283 | |
284 | if (rp->status) |
285 | return rp->status; |
286 | |
287 | /* Reset all non-persistent flags */ |
288 | hci_dev_clear_volatile_flags(hdev); |
289 | |
290 | hci_discovery_set_state(hdev, state: DISCOVERY_STOPPED); |
291 | |
292 | hdev->inq_tx_power = HCI_TX_POWER_INVALID; |
293 | hdev->adv_tx_power = HCI_TX_POWER_INVALID; |
294 | |
295 | memset(hdev->adv_data, 0, sizeof(hdev->adv_data)); |
296 | hdev->adv_data_len = 0; |
297 | |
298 | memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data)); |
299 | hdev->scan_rsp_data_len = 0; |
300 | |
301 | hdev->le_scan_type = LE_SCAN_PASSIVE; |
302 | |
303 | hdev->ssp_debug_mode = 0; |
304 | |
305 | hci_bdaddr_list_clear(list: &hdev->le_accept_list); |
306 | hci_bdaddr_list_clear(list: &hdev->le_resolv_list); |
307 | |
308 | return rp->status; |
309 | } |
310 | |
311 | static u8 hci_cc_read_stored_link_key(struct hci_dev *hdev, void *data, |
312 | struct sk_buff *skb) |
313 | { |
314 | struct hci_rp_read_stored_link_key *rp = data; |
315 | struct hci_cp_read_stored_link_key *sent; |
316 | |
317 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
318 | |
319 | sent = hci_sent_cmd_data(hdev, HCI_OP_READ_STORED_LINK_KEY); |
320 | if (!sent) |
321 | return rp->status; |
322 | |
323 | if (!rp->status && sent->read_all == 0x01) { |
324 | hdev->stored_max_keys = le16_to_cpu(rp->max_keys); |
325 | hdev->stored_num_keys = le16_to_cpu(rp->num_keys); |
326 | } |
327 | |
328 | return rp->status; |
329 | } |
330 | |
331 | static u8 hci_cc_delete_stored_link_key(struct hci_dev *hdev, void *data, |
332 | struct sk_buff *skb) |
333 | { |
334 | struct hci_rp_delete_stored_link_key *rp = data; |
335 | u16 num_keys; |
336 | |
337 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
338 | |
339 | if (rp->status) |
340 | return rp->status; |
341 | |
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; |
346 | else |
347 | hdev->stored_num_keys = 0; |
348 | |
349 | return rp->status; |
350 | } |
351 | |
352 | static u8 hci_cc_write_local_name(struct hci_dev *hdev, void *data, |
353 | struct sk_buff *skb) |
354 | { |
355 | struct hci_ev_status *rp = data; |
356 | void *sent; |
357 | |
358 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
359 | |
360 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LOCAL_NAME); |
361 | if (!sent) |
362 | return rp->status; |
363 | |
364 | hci_dev_lock(hdev); |
365 | |
366 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
367 | mgmt_set_local_name_complete(hdev, name: sent, status: rp->status); |
368 | else if (!rp->status) |
369 | memcpy(hdev->dev_name, sent, HCI_MAX_NAME_LENGTH); |
370 | |
371 | hci_dev_unlock(hdev); |
372 | |
373 | return rp->status; |
374 | } |
375 | |
376 | static u8 hci_cc_read_local_name(struct hci_dev *hdev, void *data, |
377 | struct sk_buff *skb) |
378 | { |
379 | struct hci_rp_read_local_name *rp = data; |
380 | |
381 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
382 | |
383 | if (rp->status) |
384 | return rp->status; |
385 | |
386 | if (hci_dev_test_flag(hdev, HCI_SETUP) || |
387 | hci_dev_test_flag(hdev, HCI_CONFIG)) |
388 | memcpy(hdev->dev_name, rp->name, HCI_MAX_NAME_LENGTH); |
389 | |
390 | return rp->status; |
391 | } |
392 | |
393 | static u8 hci_cc_write_auth_enable(struct hci_dev *hdev, void *data, |
394 | struct sk_buff *skb) |
395 | { |
396 | struct hci_ev_status *rp = data; |
397 | void *sent; |
398 | |
399 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
400 | |
401 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_ENABLE); |
402 | if (!sent) |
403 | return rp->status; |
404 | |
405 | hci_dev_lock(hdev); |
406 | |
407 | if (!rp->status) { |
408 | __u8 param = *((__u8 *) sent); |
409 | |
410 | if (param == AUTH_ENABLED) |
411 | set_bit(nr: HCI_AUTH, addr: &hdev->flags); |
412 | else |
413 | clear_bit(nr: HCI_AUTH, addr: &hdev->flags); |
414 | } |
415 | |
416 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
417 | mgmt_auth_enable_complete(hdev, status: rp->status); |
418 | |
419 | hci_dev_unlock(hdev); |
420 | |
421 | return rp->status; |
422 | } |
423 | |
424 | static u8 hci_cc_write_encrypt_mode(struct hci_dev *hdev, void *data, |
425 | struct sk_buff *skb) |
426 | { |
427 | struct hci_ev_status *rp = data; |
428 | __u8 param; |
429 | void *sent; |
430 | |
431 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
432 | |
433 | if (rp->status) |
434 | return rp->status; |
435 | |
436 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_ENCRYPT_MODE); |
437 | if (!sent) |
438 | return rp->status; |
439 | |
440 | param = *((__u8 *) sent); |
441 | |
442 | if (param) |
443 | set_bit(nr: HCI_ENCRYPT, addr: &hdev->flags); |
444 | else |
445 | clear_bit(nr: HCI_ENCRYPT, addr: &hdev->flags); |
446 | |
447 | return rp->status; |
448 | } |
449 | |
450 | static u8 hci_cc_write_scan_enable(struct hci_dev *hdev, void *data, |
451 | struct sk_buff *skb) |
452 | { |
453 | struct hci_ev_status *rp = data; |
454 | __u8 param; |
455 | void *sent; |
456 | |
457 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
458 | |
459 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SCAN_ENABLE); |
460 | if (!sent) |
461 | return rp->status; |
462 | |
463 | param = *((__u8 *) sent); |
464 | |
465 | hci_dev_lock(hdev); |
466 | |
467 | if (rp->status) { |
468 | hdev->discov_timeout = 0; |
469 | goto done; |
470 | } |
471 | |
472 | if (param & SCAN_INQUIRY) |
473 | set_bit(nr: HCI_ISCAN, addr: &hdev->flags); |
474 | else |
475 | clear_bit(nr: HCI_ISCAN, addr: &hdev->flags); |
476 | |
477 | if (param & SCAN_PAGE) |
478 | set_bit(nr: HCI_PSCAN, addr: &hdev->flags); |
479 | else |
480 | clear_bit(nr: HCI_PSCAN, addr: &hdev->flags); |
481 | |
482 | done: |
483 | hci_dev_unlock(hdev); |
484 | |
485 | return rp->status; |
486 | } |
487 | |
488 | static u8 hci_cc_set_event_filter(struct hci_dev *hdev, void *data, |
489 | struct sk_buff *skb) |
490 | { |
491 | struct hci_ev_status *rp = data; |
492 | struct hci_cp_set_event_filter *cp; |
493 | void *sent; |
494 | |
495 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
496 | |
497 | if (rp->status) |
498 | return rp->status; |
499 | |
500 | sent = hci_sent_cmd_data(hdev, HCI_OP_SET_EVENT_FLT); |
501 | if (!sent) |
502 | return rp->status; |
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); |
510 | |
511 | return rp->status; |
512 | } |
513 | |
514 | static u8 hci_cc_read_class_of_dev(struct hci_dev *hdev, void *data, |
515 | struct sk_buff *skb) |
516 | { |
517 | struct hci_rp_read_class_of_dev *rp = data; |
518 | |
519 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
520 | |
521 | if (rp->status) |
522 | return rp->status; |
523 | |
524 | memcpy(hdev->dev_class, rp->dev_class, 3); |
525 | |
526 | bt_dev_dbg(hdev, "class 0x%.2x%.2x%.2x" , hdev->dev_class[2], |
527 | hdev->dev_class[1], hdev->dev_class[0]); |
528 | |
529 | return rp->status; |
530 | } |
531 | |
532 | static u8 hci_cc_write_class_of_dev(struct hci_dev *hdev, void *data, |
533 | struct sk_buff *skb) |
534 | { |
535 | struct hci_ev_status *rp = data; |
536 | void *sent; |
537 | |
538 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
539 | |
540 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_CLASS_OF_DEV); |
541 | if (!sent) |
542 | return rp->status; |
543 | |
544 | hci_dev_lock(hdev); |
545 | |
546 | if (!rp->status) |
547 | memcpy(hdev->dev_class, sent, 3); |
548 | |
549 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
550 | mgmt_set_class_of_dev_complete(hdev, dev_class: sent, status: rp->status); |
551 | |
552 | hci_dev_unlock(hdev); |
553 | |
554 | return rp->status; |
555 | } |
556 | |
557 | static u8 hci_cc_read_voice_setting(struct hci_dev *hdev, void *data, |
558 | struct sk_buff *skb) |
559 | { |
560 | struct hci_rp_read_voice_setting *rp = data; |
561 | __u16 setting; |
562 | |
563 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
564 | |
565 | if (rp->status) |
566 | return rp->status; |
567 | |
568 | setting = __le16_to_cpu(rp->voice_setting); |
569 | |
570 | if (hdev->voice_setting == setting) |
571 | return rp->status; |
572 | |
573 | hdev->voice_setting = setting; |
574 | |
575 | bt_dev_dbg(hdev, "voice setting 0x%4.4x" , setting); |
576 | |
577 | if (hdev->notify) |
578 | hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); |
579 | |
580 | return rp->status; |
581 | } |
582 | |
583 | static u8 hci_cc_write_voice_setting(struct hci_dev *hdev, void *data, |
584 | struct sk_buff *skb) |
585 | { |
586 | struct hci_ev_status *rp = data; |
587 | __u16 setting; |
588 | void *sent; |
589 | |
590 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
591 | |
592 | if (rp->status) |
593 | return rp->status; |
594 | |
595 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_VOICE_SETTING); |
596 | if (!sent) |
597 | return rp->status; |
598 | |
599 | setting = get_unaligned_le16(p: sent); |
600 | |
601 | if (hdev->voice_setting == setting) |
602 | return rp->status; |
603 | |
604 | hdev->voice_setting = setting; |
605 | |
606 | bt_dev_dbg(hdev, "voice setting 0x%4.4x" , setting); |
607 | |
608 | if (hdev->notify) |
609 | hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); |
610 | |
611 | return rp->status; |
612 | } |
613 | |
614 | static u8 hci_cc_read_num_supported_iac(struct hci_dev *hdev, void *data, |
615 | struct sk_buff *skb) |
616 | { |
617 | struct hci_rp_read_num_supported_iac *rp = data; |
618 | |
619 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
620 | |
621 | if (rp->status) |
622 | return rp->status; |
623 | |
624 | hdev->num_iac = rp->num_iac; |
625 | |
626 | bt_dev_dbg(hdev, "num iac %d" , hdev->num_iac); |
627 | |
628 | return rp->status; |
629 | } |
630 | |
631 | static u8 hci_cc_write_ssp_mode(struct hci_dev *hdev, void *data, |
632 | struct sk_buff *skb) |
633 | { |
634 | struct hci_ev_status *rp = data; |
635 | struct hci_cp_write_ssp_mode *sent; |
636 | |
637 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
638 | |
639 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_MODE); |
640 | if (!sent) |
641 | return rp->status; |
642 | |
643 | hci_dev_lock(hdev); |
644 | |
645 | if (!rp->status) { |
646 | if (sent->mode) |
647 | hdev->features[1][0] |= LMP_HOST_SSP; |
648 | else |
649 | hdev->features[1][0] &= ~LMP_HOST_SSP; |
650 | } |
651 | |
652 | if (!rp->status) { |
653 | if (sent->mode) |
654 | hci_dev_set_flag(hdev, HCI_SSP_ENABLED); |
655 | else |
656 | hci_dev_clear_flag(hdev, HCI_SSP_ENABLED); |
657 | } |
658 | |
659 | hci_dev_unlock(hdev); |
660 | |
661 | return rp->status; |
662 | } |
663 | |
664 | static u8 hci_cc_write_sc_support(struct hci_dev *hdev, void *data, |
665 | struct sk_buff *skb) |
666 | { |
667 | struct hci_ev_status *rp = data; |
668 | struct hci_cp_write_sc_support *sent; |
669 | |
670 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
671 | |
672 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SC_SUPPORT); |
673 | if (!sent) |
674 | return rp->status; |
675 | |
676 | hci_dev_lock(hdev); |
677 | |
678 | if (!rp->status) { |
679 | if (sent->support) |
680 | hdev->features[1][0] |= LMP_HOST_SC; |
681 | else |
682 | hdev->features[1][0] &= ~LMP_HOST_SC; |
683 | } |
684 | |
685 | if (!hci_dev_test_flag(hdev, HCI_MGMT) && !rp->status) { |
686 | if (sent->support) |
687 | hci_dev_set_flag(hdev, HCI_SC_ENABLED); |
688 | else |
689 | hci_dev_clear_flag(hdev, HCI_SC_ENABLED); |
690 | } |
691 | |
692 | hci_dev_unlock(hdev); |
693 | |
694 | return rp->status; |
695 | } |
696 | |
697 | static u8 hci_cc_read_local_version(struct hci_dev *hdev, void *data, |
698 | struct sk_buff *skb) |
699 | { |
700 | struct hci_rp_read_local_version *rp = data; |
701 | |
702 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
703 | |
704 | if (rp->status) |
705 | return rp->status; |
706 | |
707 | if (hci_dev_test_flag(hdev, HCI_SETUP) || |
708 | hci_dev_test_flag(hdev, HCI_CONFIG)) { |
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 | } |
715 | |
716 | return rp->status; |
717 | } |
718 | |
719 | static 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, status: 0); |
753 | |
754 | done: |
755 | hci_dev_unlock(hdev); |
756 | |
757 | return status; |
758 | } |
759 | |
760 | static u8 hci_cc_read_local_commands(struct hci_dev *hdev, void *data, |
761 | struct sk_buff *skb) |
762 | { |
763 | struct hci_rp_read_local_commands *rp = data; |
764 | |
765 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
766 | |
767 | if (rp->status) |
768 | return rp->status; |
769 | |
770 | if (hci_dev_test_flag(hdev, HCI_SETUP) || |
771 | hci_dev_test_flag(hdev, HCI_CONFIG)) |
772 | memcpy(hdev->commands, rp->commands, sizeof(hdev->commands)); |
773 | |
774 | return rp->status; |
775 | } |
776 | |
777 | static u8 hci_cc_read_auth_payload_timeout(struct hci_dev *hdev, void *data, |
778 | struct sk_buff *skb) |
779 | { |
780 | struct hci_rp_read_auth_payload_to *rp = data; |
781 | struct hci_conn *conn; |
782 | |
783 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
784 | |
785 | if (rp->status) |
786 | return rp->status; |
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); |
795 | |
796 | return rp->status; |
797 | } |
798 | |
799 | static u8 hci_cc_write_auth_payload_timeout(struct hci_dev *hdev, void *data, |
800 | struct sk_buff *skb) |
801 | { |
802 | struct hci_rp_write_auth_payload_to *rp = data; |
803 | struct hci_conn *conn; |
804 | void *sent; |
805 | |
806 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
807 | |
808 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO); |
809 | if (!sent) |
810 | return rp->status; |
811 | |
812 | hci_dev_lock(hdev); |
813 | |
814 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
815 | if (!conn) { |
816 | rp->status = 0xff; |
817 | goto unlock; |
818 | } |
819 | |
820 | if (!rp->status) |
821 | conn->auth_payload_timeout = get_unaligned_le16(p: sent + 2); |
822 | |
823 | hci_encrypt_cfm(conn, status: 0); |
824 | |
825 | unlock: |
826 | hci_dev_unlock(hdev); |
827 | |
828 | return rp->status; |
829 | } |
830 | |
831 | static u8 hci_cc_read_local_features(struct hci_dev *hdev, void *data, |
832 | struct sk_buff *skb) |
833 | { |
834 | struct hci_rp_read_local_features *rp = data; |
835 | |
836 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
837 | |
838 | if (rp->status) |
839 | return rp->status; |
840 | |
841 | memcpy(hdev->features, rp->features, 8); |
842 | |
843 | /* Adjust default settings according to features |
844 | * supported by device. */ |
845 | |
846 | if (hdev->features[0][0] & LMP_3SLOT) |
847 | hdev->pkt_type |= (HCI_DM3 | HCI_DH3); |
848 | |
849 | if (hdev->features[0][0] & LMP_5SLOT) |
850 | hdev->pkt_type |= (HCI_DM5 | HCI_DH5); |
851 | |
852 | if (hdev->features[0][1] & LMP_HV2) { |
853 | hdev->pkt_type |= (HCI_HV2); |
854 | hdev->esco_type |= (ESCO_HV2); |
855 | } |
856 | |
857 | if (hdev->features[0][1] & LMP_HV3) { |
858 | hdev->pkt_type |= (HCI_HV3); |
859 | hdev->esco_type |= (ESCO_HV3); |
860 | } |
861 | |
862 | if (lmp_esco_capable(hdev)) |
863 | hdev->esco_type |= (ESCO_EV3); |
864 | |
865 | if (hdev->features[0][4] & LMP_EV4) |
866 | hdev->esco_type |= (ESCO_EV4); |
867 | |
868 | if (hdev->features[0][4] & LMP_EV5) |
869 | hdev->esco_type |= (ESCO_EV5); |
870 | |
871 | if (hdev->features[0][5] & LMP_EDR_ESCO_2M) |
872 | hdev->esco_type |= (ESCO_2EV3); |
873 | |
874 | if (hdev->features[0][5] & LMP_EDR_ESCO_3M) |
875 | hdev->esco_type |= (ESCO_3EV3); |
876 | |
877 | if (hdev->features[0][5] & LMP_EDR_3S_ESCO) |
878 | hdev->esco_type |= (ESCO_2EV5 | ESCO_3EV5); |
879 | |
880 | return rp->status; |
881 | } |
882 | |
883 | static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data, |
884 | struct sk_buff *skb) |
885 | { |
886 | struct hci_rp_read_local_ext_features *rp = data; |
887 | |
888 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
889 | |
890 | if (rp->status) |
891 | return rp->status; |
892 | |
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 | } |
900 | |
901 | if (rp->page < HCI_MAX_PAGES) |
902 | memcpy(hdev->features[rp->page], rp->features, 8); |
903 | |
904 | return rp->status; |
905 | } |
906 | |
907 | static u8 hci_cc_read_flow_control_mode(struct hci_dev *hdev, void *data, |
908 | struct sk_buff *skb) |
909 | { |
910 | struct hci_rp_read_flow_control_mode *rp = data; |
911 | |
912 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
913 | |
914 | if (rp->status) |
915 | return rp->status; |
916 | |
917 | hdev->flow_ctl_mode = rp->mode; |
918 | |
919 | return rp->status; |
920 | } |
921 | |
922 | static u8 hci_cc_read_buffer_size(struct hci_dev *hdev, void *data, |
923 | struct sk_buff *skb) |
924 | { |
925 | struct hci_rp_read_buffer_size *rp = data; |
926 | |
927 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
928 | |
929 | if (rp->status) |
930 | return rp->status; |
931 | |
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; |
940 | } |
941 | |
942 | hdev->acl_cnt = hdev->acl_pkts; |
943 | hdev->sco_cnt = hdev->sco_pkts; |
944 | |
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); |
947 | |
948 | return rp->status; |
949 | } |
950 | |
951 | static u8 hci_cc_read_bd_addr(struct hci_dev *hdev, void *data, |
952 | struct sk_buff *skb) |
953 | { |
954 | struct hci_rp_read_bd_addr *rp = data; |
955 | |
956 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
957 | |
958 | if (rp->status) |
959 | return rp->status; |
960 | |
961 | if (test_bit(HCI_INIT, &hdev->flags)) |
962 | bacpy(dst: &hdev->bdaddr, src: &rp->bdaddr); |
963 | |
964 | if (hci_dev_test_flag(hdev, HCI_SETUP)) |
965 | bacpy(dst: &hdev->setup_addr, src: &rp->bdaddr); |
966 | |
967 | return rp->status; |
968 | } |
969 | |
970 | static u8 hci_cc_read_local_pairing_opts(struct hci_dev *hdev, void *data, |
971 | struct sk_buff *skb) |
972 | { |
973 | struct hci_rp_read_local_pairing_opts *rp = data; |
974 | |
975 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
976 | |
977 | if (rp->status) |
978 | return rp->status; |
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 | } |
985 | |
986 | return rp->status; |
987 | } |
988 | |
989 | static u8 hci_cc_read_page_scan_activity(struct hci_dev *hdev, void *data, |
990 | struct sk_buff *skb) |
991 | { |
992 | struct hci_rp_read_page_scan_activity *rp = data; |
993 | |
994 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
995 | |
996 | if (rp->status) |
997 | return rp->status; |
998 | |
999 | if (test_bit(HCI_INIT, &hdev->flags)) { |
1000 | hdev->page_scan_interval = __le16_to_cpu(rp->interval); |
1001 | hdev->page_scan_window = __le16_to_cpu(rp->window); |
1002 | } |
1003 | |
1004 | return rp->status; |
1005 | } |
1006 | |
1007 | static u8 hci_cc_write_page_scan_activity(struct hci_dev *hdev, void *data, |
1008 | struct sk_buff *skb) |
1009 | { |
1010 | struct hci_ev_status *rp = data; |
1011 | struct hci_cp_write_page_scan_activity *sent; |
1012 | |
1013 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1014 | |
1015 | if (rp->status) |
1016 | return rp->status; |
1017 | |
1018 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY); |
1019 | if (!sent) |
1020 | return rp->status; |
1021 | |
1022 | hdev->page_scan_interval = __le16_to_cpu(sent->interval); |
1023 | hdev->page_scan_window = __le16_to_cpu(sent->window); |
1024 | |
1025 | return rp->status; |
1026 | } |
1027 | |
1028 | static u8 hci_cc_read_page_scan_type(struct hci_dev *hdev, void *data, |
1029 | struct sk_buff *skb) |
1030 | { |
1031 | struct hci_rp_read_page_scan_type *rp = data; |
1032 | |
1033 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1034 | |
1035 | if (rp->status) |
1036 | return rp->status; |
1037 | |
1038 | if (test_bit(HCI_INIT, &hdev->flags)) |
1039 | hdev->page_scan_type = rp->type; |
1040 | |
1041 | return rp->status; |
1042 | } |
1043 | |
1044 | static u8 hci_cc_write_page_scan_type(struct hci_dev *hdev, void *data, |
1045 | struct sk_buff *skb) |
1046 | { |
1047 | struct hci_ev_status *rp = data; |
1048 | u8 *type; |
1049 | |
1050 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1051 | |
1052 | if (rp->status) |
1053 | return rp->status; |
1054 | |
1055 | type = hci_sent_cmd_data(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE); |
1056 | if (type) |
1057 | hdev->page_scan_type = *type; |
1058 | |
1059 | return rp->status; |
1060 | } |
1061 | |
1062 | static u8 hci_cc_read_data_block_size(struct hci_dev *hdev, void *data, |
1063 | struct sk_buff *skb) |
1064 | { |
1065 | struct hci_rp_read_data_block_size *rp = data; |
1066 | |
1067 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1068 | |
1069 | if (rp->status) |
1070 | return rp->status; |
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, |
1079 | hdev->block_cnt, hdev->block_len); |
1080 | |
1081 | return rp->status; |
1082 | } |
1083 | |
1084 | static u8 hci_cc_read_clock(struct hci_dev *hdev, void *data, |
1085 | struct sk_buff *skb) |
1086 | { |
1087 | struct hci_rp_read_clock *rp = data; |
1088 | struct hci_cp_read_clock *cp; |
1089 | struct hci_conn *conn; |
1090 | |
1091 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1092 | |
1093 | if (rp->status) |
1094 | return rp->status; |
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 | |
1113 | unlock: |
1114 | hci_dev_unlock(hdev); |
1115 | return rp->status; |
1116 | } |
1117 | |
1118 | static u8 hci_cc_read_local_amp_info(struct hci_dev *hdev, void *data, |
1119 | struct sk_buff *skb) |
1120 | { |
1121 | struct hci_rp_read_local_amp_info *rp = data; |
1122 | |
1123 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1124 | |
1125 | if (rp->status) |
1126 | return rp->status; |
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); |
1138 | |
1139 | return rp->status; |
1140 | } |
1141 | |
1142 | static u8 hci_cc_read_inq_rsp_tx_power(struct hci_dev *hdev, void *data, |
1143 | struct sk_buff *skb) |
1144 | { |
1145 | struct hci_rp_read_inq_rsp_tx_power *rp = data; |
1146 | |
1147 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1148 | |
1149 | if (rp->status) |
1150 | return rp->status; |
1151 | |
1152 | hdev->inq_tx_power = rp->tx_power; |
1153 | |
1154 | return rp->status; |
1155 | } |
1156 | |
1157 | static u8 hci_cc_read_def_err_data_reporting(struct hci_dev *hdev, void *data, |
1158 | struct sk_buff *skb) |
1159 | { |
1160 | struct hci_rp_read_def_err_data_reporting *rp = data; |
1161 | |
1162 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1163 | |
1164 | if (rp->status) |
1165 | return rp->status; |
1166 | |
1167 | hdev->err_data_reporting = rp->err_data_reporting; |
1168 | |
1169 | return rp->status; |
1170 | } |
1171 | |
1172 | static u8 hci_cc_write_def_err_data_reporting(struct hci_dev *hdev, void *data, |
1173 | struct sk_buff *skb) |
1174 | { |
1175 | struct hci_ev_status *rp = data; |
1176 | struct hci_cp_write_def_err_data_reporting *cp; |
1177 | |
1178 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1179 | |
1180 | if (rp->status) |
1181 | return rp->status; |
1182 | |
1183 | cp = hci_sent_cmd_data(hdev, HCI_OP_WRITE_DEF_ERR_DATA_REPORTING); |
1184 | if (!cp) |
1185 | return rp->status; |
1186 | |
1187 | hdev->err_data_reporting = cp->err_data_reporting; |
1188 | |
1189 | return rp->status; |
1190 | } |
1191 | |
1192 | static u8 hci_cc_pin_code_reply(struct hci_dev *hdev, void *data, |
1193 | struct sk_buff *skb) |
1194 | { |
1195 | struct hci_rp_pin_code_reply *rp = data; |
1196 | struct hci_cp_pin_code_reply *cp; |
1197 | struct hci_conn *conn; |
1198 | |
1199 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1200 | |
1201 | hci_dev_lock(hdev); |
1202 | |
1203 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1204 | mgmt_pin_code_reply_complete(hdev, bdaddr: &rp->bdaddr, status: rp->status); |
1205 | |
1206 | if (rp->status) |
1207 | goto unlock; |
1208 | |
1209 | cp = hci_sent_cmd_data(hdev, HCI_OP_PIN_CODE_REPLY); |
1210 | if (!cp) |
1211 | goto unlock; |
1212 | |
1213 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &cp->bdaddr); |
1214 | if (conn) |
1215 | conn->pin_length = cp->pin_len; |
1216 | |
1217 | unlock: |
1218 | hci_dev_unlock(hdev); |
1219 | return rp->status; |
1220 | } |
1221 | |
1222 | static u8 hci_cc_pin_code_neg_reply(struct hci_dev *hdev, void *data, |
1223 | struct sk_buff *skb) |
1224 | { |
1225 | struct hci_rp_pin_code_neg_reply *rp = data; |
1226 | |
1227 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1228 | |
1229 | hci_dev_lock(hdev); |
1230 | |
1231 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1232 | mgmt_pin_code_neg_reply_complete(hdev, bdaddr: &rp->bdaddr, |
1233 | status: rp->status); |
1234 | |
1235 | hci_dev_unlock(hdev); |
1236 | |
1237 | return rp->status; |
1238 | } |
1239 | |
1240 | static u8 hci_cc_le_read_buffer_size(struct hci_dev *hdev, void *data, |
1241 | struct sk_buff *skb) |
1242 | { |
1243 | struct hci_rp_le_read_buffer_size *rp = data; |
1244 | |
1245 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1246 | |
1247 | if (rp->status) |
1248 | return rp->status; |
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); |
1256 | |
1257 | return rp->status; |
1258 | } |
1259 | |
1260 | static u8 hci_cc_le_read_local_features(struct hci_dev *hdev, void *data, |
1261 | struct sk_buff *skb) |
1262 | { |
1263 | struct hci_rp_le_read_local_features *rp = data; |
1264 | |
1265 | BT_DBG("%s status 0x%2.2x" , hdev->name, rp->status); |
1266 | |
1267 | if (rp->status) |
1268 | return rp->status; |
1269 | |
1270 | memcpy(hdev->le_features, rp->features, 8); |
1271 | |
1272 | return rp->status; |
1273 | } |
1274 | |
1275 | static u8 hci_cc_le_read_adv_tx_power(struct hci_dev *hdev, void *data, |
1276 | struct sk_buff *skb) |
1277 | { |
1278 | struct hci_rp_le_read_adv_tx_power *rp = data; |
1279 | |
1280 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1281 | |
1282 | if (rp->status) |
1283 | return rp->status; |
1284 | |
1285 | hdev->adv_tx_power = rp->tx_power; |
1286 | |
1287 | return rp->status; |
1288 | } |
1289 | |
1290 | static u8 hci_cc_user_confirm_reply(struct hci_dev *hdev, void *data, |
1291 | struct sk_buff *skb) |
1292 | { |
1293 | struct hci_rp_user_confirm_reply *rp = data; |
1294 | |
1295 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1296 | |
1297 | hci_dev_lock(hdev); |
1298 | |
1299 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1300 | mgmt_user_confirm_reply_complete(hdev, bdaddr: &rp->bdaddr, ACL_LINK, addr_type: 0, |
1301 | status: rp->status); |
1302 | |
1303 | hci_dev_unlock(hdev); |
1304 | |
1305 | return rp->status; |
1306 | } |
1307 | |
1308 | static u8 hci_cc_user_confirm_neg_reply(struct hci_dev *hdev, void *data, |
1309 | struct sk_buff *skb) |
1310 | { |
1311 | struct hci_rp_user_confirm_reply *rp = data; |
1312 | |
1313 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1314 | |
1315 | hci_dev_lock(hdev); |
1316 | |
1317 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1318 | mgmt_user_confirm_neg_reply_complete(hdev, bdaddr: &rp->bdaddr, |
1319 | ACL_LINK, addr_type: 0, status: rp->status); |
1320 | |
1321 | hci_dev_unlock(hdev); |
1322 | |
1323 | return rp->status; |
1324 | } |
1325 | |
1326 | static u8 hci_cc_user_passkey_reply(struct hci_dev *hdev, void *data, |
1327 | struct sk_buff *skb) |
1328 | { |
1329 | struct hci_rp_user_confirm_reply *rp = data; |
1330 | |
1331 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1332 | |
1333 | hci_dev_lock(hdev); |
1334 | |
1335 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1336 | mgmt_user_passkey_reply_complete(hdev, bdaddr: &rp->bdaddr, ACL_LINK, |
1337 | addr_type: 0, status: rp->status); |
1338 | |
1339 | hci_dev_unlock(hdev); |
1340 | |
1341 | return rp->status; |
1342 | } |
1343 | |
1344 | static u8 hci_cc_user_passkey_neg_reply(struct hci_dev *hdev, void *data, |
1345 | struct sk_buff *skb) |
1346 | { |
1347 | struct hci_rp_user_confirm_reply *rp = data; |
1348 | |
1349 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1350 | |
1351 | hci_dev_lock(hdev); |
1352 | |
1353 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
1354 | mgmt_user_passkey_neg_reply_complete(hdev, bdaddr: &rp->bdaddr, |
1355 | ACL_LINK, addr_type: 0, status: rp->status); |
1356 | |
1357 | hci_dev_unlock(hdev); |
1358 | |
1359 | return rp->status; |
1360 | } |
1361 | |
1362 | static u8 hci_cc_read_local_oob_data(struct hci_dev *hdev, void *data, |
1363 | struct sk_buff *skb) |
1364 | { |
1365 | struct hci_rp_read_local_oob_data *rp = data; |
1366 | |
1367 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1368 | |
1369 | return rp->status; |
1370 | } |
1371 | |
1372 | static u8 hci_cc_read_local_oob_ext_data(struct hci_dev *hdev, void *data, |
1373 | struct sk_buff *skb) |
1374 | { |
1375 | struct hci_rp_read_local_oob_ext_data *rp = data; |
1376 | |
1377 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1378 | |
1379 | return rp->status; |
1380 | } |
1381 | |
1382 | static u8 hci_cc_le_set_random_addr(struct hci_dev *hdev, void *data, |
1383 | struct sk_buff *skb) |
1384 | { |
1385 | struct hci_ev_status *rp = data; |
1386 | bdaddr_t *sent; |
1387 | |
1388 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1389 | |
1390 | if (rp->status) |
1391 | return rp->status; |
1392 | |
1393 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR); |
1394 | if (!sent) |
1395 | return rp->status; |
1396 | |
1397 | hci_dev_lock(hdev); |
1398 | |
1399 | bacpy(dst: &hdev->random_addr, src: sent); |
1400 | |
1401 | if (!bacmp(ba1: &hdev->rpa, ba2: sent)) { |
1402 | hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED); |
1403 | queue_delayed_work(wq: hdev->workqueue, dwork: &hdev->rpa_expired, |
1404 | secs_to_jiffies(hdev->rpa_timeout)); |
1405 | } |
1406 | |
1407 | hci_dev_unlock(hdev); |
1408 | |
1409 | return rp->status; |
1410 | } |
1411 | |
1412 | static u8 hci_cc_le_set_default_phy(struct hci_dev *hdev, void *data, |
1413 | struct sk_buff *skb) |
1414 | { |
1415 | struct hci_ev_status *rp = data; |
1416 | struct hci_cp_le_set_default_phy *cp; |
1417 | |
1418 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1419 | |
1420 | if (rp->status) |
1421 | return rp->status; |
1422 | |
1423 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_DEFAULT_PHY); |
1424 | if (!cp) |
1425 | return rp->status; |
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); |
1433 | |
1434 | return rp->status; |
1435 | } |
1436 | |
1437 | static u8 hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev, void *data, |
1438 | struct sk_buff *skb) |
1439 | { |
1440 | struct hci_ev_status *rp = data; |
1441 | struct hci_cp_le_set_adv_set_rand_addr *cp; |
1442 | struct adv_info *adv; |
1443 | |
1444 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1445 | |
1446 | if (rp->status) |
1447 | return rp->status; |
1448 | |
1449 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_SET_RAND_ADDR); |
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) |
1455 | return rp->status; |
1456 | |
1457 | hci_dev_lock(hdev); |
1458 | |
1459 | adv = hci_find_adv_instance(hdev, instance: cp->handle); |
1460 | if (adv) { |
1461 | bacpy(dst: &adv->random_addr, src: &cp->bdaddr); |
1462 | if (!bacmp(ba1: &hdev->rpa, ba2: &cp->bdaddr)) { |
1463 | adv->rpa_expired = false; |
1464 | queue_delayed_work(wq: hdev->workqueue, |
1465 | dwork: &adv->rpa_expired_cb, |
1466 | secs_to_jiffies(hdev->rpa_timeout)); |
1467 | } |
1468 | } |
1469 | |
1470 | hci_dev_unlock(hdev); |
1471 | |
1472 | return rp->status; |
1473 | } |
1474 | |
1475 | static u8 hci_cc_le_remove_adv_set(struct hci_dev *hdev, void *data, |
1476 | struct sk_buff *skb) |
1477 | { |
1478 | struct hci_ev_status *rp = data; |
1479 | u8 *instance; |
1480 | int err; |
1481 | |
1482 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1483 | |
1484 | if (rp->status) |
1485 | return rp->status; |
1486 | |
1487 | instance = hci_sent_cmd_data(hdev, HCI_OP_LE_REMOVE_ADV_SET); |
1488 | if (!instance) |
1489 | return rp->status; |
1490 | |
1491 | hci_dev_lock(hdev); |
1492 | |
1493 | err = hci_remove_adv_instance(hdev, instance: *instance); |
1494 | if (!err) |
1495 | mgmt_advertising_removed(hci_skb_sk(hdev->sent_cmd), hdev, |
1496 | instance: *instance); |
1497 | |
1498 | hci_dev_unlock(hdev); |
1499 | |
1500 | return rp->status; |
1501 | } |
1502 | |
1503 | static u8 hci_cc_le_clear_adv_sets(struct hci_dev *hdev, void *data, |
1504 | struct sk_buff *skb) |
1505 | { |
1506 | struct hci_ev_status *rp = data; |
1507 | struct adv_info *adv, *n; |
1508 | int err; |
1509 | |
1510 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1511 | |
1512 | if (rp->status) |
1513 | return rp->status; |
1514 | |
1515 | if (!hci_sent_cmd_data(hdev, HCI_OP_LE_CLEAR_ADV_SETS)) |
1516 | return rp->status; |
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); |
1530 | |
1531 | return rp->status; |
1532 | } |
1533 | |
1534 | static u8 hci_cc_le_read_transmit_power(struct hci_dev *hdev, void *data, |
1535 | struct sk_buff *skb) |
1536 | { |
1537 | struct hci_rp_le_read_transmit_power *rp = data; |
1538 | |
1539 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1540 | |
1541 | if (rp->status) |
1542 | return rp->status; |
1543 | |
1544 | hdev->min_le_tx_power = rp->min_le_tx_power; |
1545 | hdev->max_le_tx_power = rp->max_le_tx_power; |
1546 | |
1547 | return rp->status; |
1548 | } |
1549 | |
1550 | static 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, addr: &cp->bdaddr, addr_type: cp->bdaddr_type); |
1569 | if (params) |
1570 | WRITE_ONCE(params->privacy_mode, cp->mode); |
1571 | |
1572 | hci_dev_unlock(hdev); |
1573 | |
1574 | return rp->status; |
1575 | } |
1576 | |
1577 | static u8 hci_cc_le_set_adv_enable(struct hci_dev *hdev, void *data, |
1578 | struct sk_buff *skb) |
1579 | { |
1580 | struct hci_ev_status *rp = data; |
1581 | __u8 *sent; |
1582 | |
1583 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1584 | |
1585 | if (rp->status) |
1586 | return rp->status; |
1587 | |
1588 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_ENABLE); |
1589 | if (!sent) |
1590 | return rp->status; |
1591 | |
1592 | hci_dev_lock(hdev); |
1593 | |
1594 | /* If we're doing connection initiation as peripheral. Set a |
1595 | * timeout in case something goes wrong. |
1596 | */ |
1597 | if (*sent) { |
1598 | struct hci_conn *conn; |
1599 | |
1600 | hci_dev_set_flag(hdev, HCI_LE_ADV); |
1601 | |
1602 | conn = hci_lookup_le_connect(hdev); |
1603 | if (conn) |
1604 | queue_delayed_work(wq: hdev->workqueue, |
1605 | dwork: &conn->le_conn_timeout, |
1606 | delay: conn->conn_timeout); |
1607 | } else { |
1608 | hci_dev_clear_flag(hdev, HCI_LE_ADV); |
1609 | } |
1610 | |
1611 | hci_dev_unlock(hdev); |
1612 | |
1613 | return rp->status; |
1614 | } |
1615 | |
1616 | static u8 hci_cc_le_set_ext_adv_enable(struct hci_dev *hdev, void *data, |
1617 | struct sk_buff *skb) |
1618 | { |
1619 | struct hci_cp_le_set_ext_adv_enable *cp; |
1620 | struct hci_cp_ext_adv_set *set; |
1621 | struct adv_info *adv = NULL, *n; |
1622 | struct hci_ev_status *rp = data; |
1623 | |
1624 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1625 | |
1626 | if (rp->status) |
1627 | return rp->status; |
1628 | |
1629 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_ENABLE); |
1630 | if (!cp) |
1631 | return rp->status; |
1632 | |
1633 | set = (void *)cp->data; |
1634 | |
1635 | hci_dev_lock(hdev); |
1636 | |
1637 | if (cp->num_of_sets) |
1638 | adv = hci_find_adv_instance(hdev, instance: set->handle); |
1639 | |
1640 | if (cp->enable) { |
1641 | struct hci_conn *conn; |
1642 | |
1643 | hci_dev_set_flag(hdev, HCI_LE_ADV); |
1644 | |
1645 | if (adv && !adv->periodic) |
1646 | adv->enabled = true; |
1647 | |
1648 | conn = hci_lookup_le_connect(hdev); |
1649 | if (conn) |
1650 | queue_delayed_work(wq: hdev->workqueue, |
1651 | dwork: &conn->le_conn_timeout, |
1652 | delay: conn->conn_timeout); |
1653 | } else { |
1654 | if (cp->num_of_sets) { |
1655 | if (adv) |
1656 | adv->enabled = false; |
1657 | |
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 | |
1673 | hci_dev_clear_flag(hdev, HCI_LE_ADV); |
1674 | } |
1675 | |
1676 | unlock: |
1677 | hci_dev_unlock(hdev); |
1678 | return rp->status; |
1679 | } |
1680 | |
1681 | static u8 hci_cc_le_set_scan_param(struct hci_dev *hdev, void *data, |
1682 | struct sk_buff *skb) |
1683 | { |
1684 | struct hci_cp_le_set_scan_param *cp; |
1685 | struct hci_ev_status *rp = data; |
1686 | |
1687 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1688 | |
1689 | if (rp->status) |
1690 | return rp->status; |
1691 | |
1692 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM); |
1693 | if (!cp) |
1694 | return rp->status; |
1695 | |
1696 | hci_dev_lock(hdev); |
1697 | |
1698 | hdev->le_scan_type = cp->type; |
1699 | |
1700 | hci_dev_unlock(hdev); |
1701 | |
1702 | return rp->status; |
1703 | } |
1704 | |
1705 | static u8 hci_cc_le_set_ext_scan_param(struct hci_dev *hdev, void *data, |
1706 | struct sk_buff *skb) |
1707 | { |
1708 | struct hci_cp_le_set_ext_scan_params *cp; |
1709 | struct hci_ev_status *rp = data; |
1710 | struct hci_cp_le_scan_phy_params *phy_param; |
1711 | |
1712 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1713 | |
1714 | if (rp->status) |
1715 | return rp->status; |
1716 | |
1717 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_PARAMS); |
1718 | if (!cp) |
1719 | return rp->status; |
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); |
1728 | |
1729 | return rp->status; |
1730 | } |
1731 | |
1732 | static bool has_pending_adv_report(struct hci_dev *hdev) |
1733 | { |
1734 | struct discovery_state *d = &hdev->discovery; |
1735 | |
1736 | return bacmp(ba1: &d->last_adv_addr, BDADDR_ANY); |
1737 | } |
1738 | |
1739 | static void clear_pending_adv_report(struct hci_dev *hdev) |
1740 | { |
1741 | struct discovery_state *d = &hdev->discovery; |
1742 | |
1743 | bacpy(dst: &d->last_adv_addr, BDADDR_ANY); |
1744 | d->last_adv_data_len = 0; |
1745 | } |
1746 | |
1747 | static void store_pending_adv_report(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1748 | u8 bdaddr_type, s8 , u32 flags, |
1749 | u8 *data, u8 len) |
1750 | { |
1751 | struct discovery_state *d = &hdev->discovery; |
1752 | |
1753 | if (len > max_adv_len(hdev)) |
1754 | return; |
1755 | |
1756 | bacpy(dst: &d->last_adv_addr, src: bdaddr); |
1757 | d->last_adv_addr_type = bdaddr_type; |
1758 | d->last_adv_rssi = rssi; |
1759 | d->last_adv_flags = flags; |
1760 | memcpy(d->last_adv_data, data, len); |
1761 | d->last_adv_data_len = len; |
1762 | } |
1763 | |
1764 | static void le_set_scan_enable_complete(struct hci_dev *hdev, u8 enable) |
1765 | { |
1766 | hci_dev_lock(hdev); |
1767 | |
1768 | switch (enable) { |
1769 | case LE_SCAN_ENABLE: |
1770 | hci_dev_set_flag(hdev, HCI_LE_SCAN); |
1771 | if (hdev->le_scan_type == LE_SCAN_ACTIVE) |
1772 | clear_pending_adv_report(hdev); |
1773 | if (hci_dev_test_flag(hdev, HCI_MESH)) |
1774 | hci_discovery_set_state(hdev, state: DISCOVERY_FINDING); |
1775 | break; |
1776 | |
1777 | case LE_SCAN_DISABLE: |
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, bdaddr: &d->last_adv_addr, LE_LINK, |
1786 | addr_type: d->last_adv_addr_type, NULL, |
1787 | rssi: d->last_adv_rssi, flags: d->last_adv_flags, |
1788 | eir: d->last_adv_data, |
1789 | eir_len: d->last_adv_data_len, NULL, scan_rsp_len: 0, instant: 0); |
1790 | } |
1791 | |
1792 | /* Cancel this timer so that we don't try to disable scanning |
1793 | * when it's already disabled. |
1794 | */ |
1795 | cancel_delayed_work(dwork: &hdev->le_scan_disable); |
1796 | |
1797 | hci_dev_clear_flag(hdev, HCI_LE_SCAN); |
1798 | |
1799 | /* The HCI_LE_SCAN_INTERRUPTED flag indicates that we |
1800 | * interrupted scanning due to a connect request. Mark |
1801 | * therefore discovery as stopped. |
1802 | */ |
1803 | if (hci_dev_test_and_clear_flag(hdev, HCI_LE_SCAN_INTERRUPTED)) |
1804 | hci_discovery_set_state(hdev, state: DISCOVERY_STOPPED); |
1805 | else if (!hci_dev_test_flag(hdev, HCI_LE_ADV) && |
1806 | hdev->discovery.state == DISCOVERY_FINDING) |
1807 | queue_work(wq: hdev->workqueue, work: &hdev->reenable_adv_work); |
1808 | |
1809 | break; |
1810 | |
1811 | default: |
1812 | bt_dev_err(hdev, "use of reserved LE_Scan_Enable param %d" , |
1813 | enable); |
1814 | break; |
1815 | } |
1816 | |
1817 | hci_dev_unlock(hdev); |
1818 | } |
1819 | |
1820 | static u8 hci_cc_le_set_scan_enable(struct hci_dev *hdev, void *data, |
1821 | struct sk_buff *skb) |
1822 | { |
1823 | struct hci_cp_le_set_scan_enable *cp; |
1824 | struct hci_ev_status *rp = data; |
1825 | |
1826 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1827 | |
1828 | if (rp->status) |
1829 | return rp->status; |
1830 | |
1831 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE); |
1832 | if (!cp) |
1833 | return rp->status; |
1834 | |
1835 | le_set_scan_enable_complete(hdev, enable: cp->enable); |
1836 | |
1837 | return rp->status; |
1838 | } |
1839 | |
1840 | static u8 hci_cc_le_set_ext_scan_enable(struct hci_dev *hdev, void *data, |
1841 | struct sk_buff *skb) |
1842 | { |
1843 | struct hci_cp_le_set_ext_scan_enable *cp; |
1844 | struct hci_ev_status *rp = data; |
1845 | |
1846 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1847 | |
1848 | if (rp->status) |
1849 | return rp->status; |
1850 | |
1851 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_SCAN_ENABLE); |
1852 | if (!cp) |
1853 | return rp->status; |
1854 | |
1855 | le_set_scan_enable_complete(hdev, enable: cp->enable); |
1856 | |
1857 | return rp->status; |
1858 | } |
1859 | |
1860 | static u8 hci_cc_le_read_num_adv_sets(struct hci_dev *hdev, void *data, |
1861 | struct sk_buff *skb) |
1862 | { |
1863 | struct hci_rp_le_read_num_supported_adv_sets *rp = data; |
1864 | |
1865 | bt_dev_dbg(hdev, "status 0x%2.2x No of Adv sets %u" , rp->status, |
1866 | rp->num_of_sets); |
1867 | |
1868 | if (rp->status) |
1869 | return rp->status; |
1870 | |
1871 | hdev->le_num_of_adv_sets = rp->num_of_sets; |
1872 | |
1873 | return rp->status; |
1874 | } |
1875 | |
1876 | static u8 hci_cc_le_read_accept_list_size(struct hci_dev *hdev, void *data, |
1877 | struct sk_buff *skb) |
1878 | { |
1879 | struct hci_rp_le_read_accept_list_size *rp = data; |
1880 | |
1881 | bt_dev_dbg(hdev, "status 0x%2.2x size %u" , rp->status, rp->size); |
1882 | |
1883 | if (rp->status) |
1884 | return rp->status; |
1885 | |
1886 | hdev->le_accept_list_size = rp->size; |
1887 | |
1888 | return rp->status; |
1889 | } |
1890 | |
1891 | static u8 hci_cc_le_clear_accept_list(struct hci_dev *hdev, void *data, |
1892 | struct sk_buff *skb) |
1893 | { |
1894 | struct hci_ev_status *rp = data; |
1895 | |
1896 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1897 | |
1898 | if (rp->status) |
1899 | return rp->status; |
1900 | |
1901 | hci_dev_lock(hdev); |
1902 | hci_bdaddr_list_clear(list: &hdev->le_accept_list); |
1903 | hci_dev_unlock(hdev); |
1904 | |
1905 | return rp->status; |
1906 | } |
1907 | |
1908 | static u8 hci_cc_le_add_to_accept_list(struct hci_dev *hdev, void *data, |
1909 | struct sk_buff *skb) |
1910 | { |
1911 | struct hci_cp_le_add_to_accept_list *sent; |
1912 | struct hci_ev_status *rp = data; |
1913 | |
1914 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1915 | |
1916 | if (rp->status) |
1917 | return rp->status; |
1918 | |
1919 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_ACCEPT_LIST); |
1920 | if (!sent) |
1921 | return rp->status; |
1922 | |
1923 | hci_dev_lock(hdev); |
1924 | hci_bdaddr_list_add(list: &hdev->le_accept_list, bdaddr: &sent->bdaddr, |
1925 | type: sent->bdaddr_type); |
1926 | hci_dev_unlock(hdev); |
1927 | |
1928 | return rp->status; |
1929 | } |
1930 | |
1931 | static u8 hci_cc_le_del_from_accept_list(struct hci_dev *hdev, void *data, |
1932 | struct sk_buff *skb) |
1933 | { |
1934 | struct hci_cp_le_del_from_accept_list *sent; |
1935 | struct hci_ev_status *rp = data; |
1936 | |
1937 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1938 | |
1939 | if (rp->status) |
1940 | return rp->status; |
1941 | |
1942 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_ACCEPT_LIST); |
1943 | if (!sent) |
1944 | return rp->status; |
1945 | |
1946 | hci_dev_lock(hdev); |
1947 | hci_bdaddr_list_del(list: &hdev->le_accept_list, bdaddr: &sent->bdaddr, |
1948 | type: sent->bdaddr_type); |
1949 | hci_dev_unlock(hdev); |
1950 | |
1951 | return rp->status; |
1952 | } |
1953 | |
1954 | static u8 hci_cc_le_read_supported_states(struct hci_dev *hdev, void *data, |
1955 | struct sk_buff *skb) |
1956 | { |
1957 | struct hci_rp_le_read_supported_states *rp = data; |
1958 | |
1959 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1960 | |
1961 | if (rp->status) |
1962 | return rp->status; |
1963 | |
1964 | memcpy(hdev->le_states, rp->le_states, 8); |
1965 | |
1966 | return rp->status; |
1967 | } |
1968 | |
1969 | static u8 hci_cc_le_read_def_data_len(struct hci_dev *hdev, void *data, |
1970 | struct sk_buff *skb) |
1971 | { |
1972 | struct hci_rp_le_read_def_data_len *rp = data; |
1973 | |
1974 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1975 | |
1976 | if (rp->status) |
1977 | return rp->status; |
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); |
1981 | |
1982 | return rp->status; |
1983 | } |
1984 | |
1985 | static u8 hci_cc_le_write_def_data_len(struct hci_dev *hdev, void *data, |
1986 | struct sk_buff *skb) |
1987 | { |
1988 | struct hci_cp_le_write_def_data_len *sent; |
1989 | struct hci_ev_status *rp = data; |
1990 | |
1991 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
1992 | |
1993 | if (rp->status) |
1994 | return rp->status; |
1995 | |
1996 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_WRITE_DEF_DATA_LEN); |
1997 | if (!sent) |
1998 | return rp->status; |
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); |
2002 | |
2003 | return rp->status; |
2004 | } |
2005 | |
2006 | static u8 hci_cc_le_add_to_resolv_list(struct hci_dev *hdev, void *data, |
2007 | struct sk_buff *skb) |
2008 | { |
2009 | struct hci_cp_le_add_to_resolv_list *sent; |
2010 | struct hci_ev_status *rp = data; |
2011 | |
2012 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2013 | |
2014 | if (rp->status) |
2015 | return rp->status; |
2016 | |
2017 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_ADD_TO_RESOLV_LIST); |
2018 | if (!sent) |
2019 | return rp->status; |
2020 | |
2021 | hci_dev_lock(hdev); |
2022 | hci_bdaddr_list_add_with_irk(list: &hdev->le_resolv_list, bdaddr: &sent->bdaddr, |
2023 | type: sent->bdaddr_type, peer_irk: sent->peer_irk, |
2024 | local_irk: sent->local_irk); |
2025 | hci_dev_unlock(hdev); |
2026 | |
2027 | return rp->status; |
2028 | } |
2029 | |
2030 | static u8 hci_cc_le_del_from_resolv_list(struct hci_dev *hdev, void *data, |
2031 | struct sk_buff *skb) |
2032 | { |
2033 | struct hci_cp_le_del_from_resolv_list *sent; |
2034 | struct hci_ev_status *rp = data; |
2035 | |
2036 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2037 | |
2038 | if (rp->status) |
2039 | return rp->status; |
2040 | |
2041 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_DEL_FROM_RESOLV_LIST); |
2042 | if (!sent) |
2043 | return rp->status; |
2044 | |
2045 | hci_dev_lock(hdev); |
2046 | hci_bdaddr_list_del_with_irk(list: &hdev->le_resolv_list, bdaddr: &sent->bdaddr, |
2047 | type: sent->bdaddr_type); |
2048 | hci_dev_unlock(hdev); |
2049 | |
2050 | return rp->status; |
2051 | } |
2052 | |
2053 | static u8 hci_cc_le_clear_resolv_list(struct hci_dev *hdev, void *data, |
2054 | struct sk_buff *skb) |
2055 | { |
2056 | struct hci_ev_status *rp = data; |
2057 | |
2058 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2059 | |
2060 | if (rp->status) |
2061 | return rp->status; |
2062 | |
2063 | hci_dev_lock(hdev); |
2064 | hci_bdaddr_list_clear(list: &hdev->le_resolv_list); |
2065 | hci_dev_unlock(hdev); |
2066 | |
2067 | return rp->status; |
2068 | } |
2069 | |
2070 | static u8 hci_cc_le_read_resolv_list_size(struct hci_dev *hdev, void *data, |
2071 | struct sk_buff *skb) |
2072 | { |
2073 | struct hci_rp_le_read_resolv_list_size *rp = data; |
2074 | |
2075 | bt_dev_dbg(hdev, "status 0x%2.2x size %u" , rp->status, rp->size); |
2076 | |
2077 | if (rp->status) |
2078 | return rp->status; |
2079 | |
2080 | hdev->le_resolv_list_size = rp->size; |
2081 | |
2082 | return rp->status; |
2083 | } |
2084 | |
2085 | static u8 hci_cc_le_set_addr_resolution_enable(struct hci_dev *hdev, void *data, |
2086 | struct sk_buff *skb) |
2087 | { |
2088 | struct hci_ev_status *rp = data; |
2089 | __u8 *sent; |
2090 | |
2091 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2092 | |
2093 | if (rp->status) |
2094 | return rp->status; |
2095 | |
2096 | sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADDR_RESOLV_ENABLE); |
2097 | if (!sent) |
2098 | return rp->status; |
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); |
2108 | |
2109 | return rp->status; |
2110 | } |
2111 | |
2112 | static u8 hci_cc_le_read_max_data_len(struct hci_dev *hdev, void *data, |
2113 | struct sk_buff *skb) |
2114 | { |
2115 | struct hci_rp_le_read_max_data_len *rp = data; |
2116 | |
2117 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2118 | |
2119 | if (rp->status) |
2120 | return rp->status; |
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); |
2126 | |
2127 | return rp->status; |
2128 | } |
2129 | |
2130 | static u8 hci_cc_write_le_host_supported(struct hci_dev *hdev, void *data, |
2131 | struct sk_buff *skb) |
2132 | { |
2133 | struct hci_cp_write_le_host_supported *sent; |
2134 | struct hci_ev_status *rp = data; |
2135 | |
2136 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2137 | |
2138 | if (rp->status) |
2139 | return rp->status; |
2140 | |
2141 | sent = hci_sent_cmd_data(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED); |
2142 | if (!sent) |
2143 | return rp->status; |
2144 | |
2145 | hci_dev_lock(hdev); |
2146 | |
2147 | if (sent->le) { |
2148 | hdev->features[1][0] |= LMP_HOST_LE; |
2149 | hci_dev_set_flag(hdev, HCI_LE_ENABLED); |
2150 | } else { |
2151 | hdev->features[1][0] &= ~LMP_HOST_LE; |
2152 | hci_dev_clear_flag(hdev, HCI_LE_ENABLED); |
2153 | hci_dev_clear_flag(hdev, HCI_ADVERTISING); |
2154 | } |
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; |
2160 | |
2161 | hci_dev_unlock(hdev); |
2162 | |
2163 | return rp->status; |
2164 | } |
2165 | |
2166 | static u8 hci_cc_set_adv_param(struct hci_dev *hdev, void *data, |
2167 | struct sk_buff *skb) |
2168 | { |
2169 | struct hci_cp_le_set_adv_param *cp; |
2170 | struct hci_ev_status *rp = data; |
2171 | |
2172 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2173 | |
2174 | if (rp->status) |
2175 | return rp->status; |
2176 | |
2177 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_ADV_PARAM); |
2178 | if (!cp) |
2179 | return rp->status; |
2180 | |
2181 | hci_dev_lock(hdev); |
2182 | hdev->adv_addr_type = cp->own_address_type; |
2183 | hci_dev_unlock(hdev); |
2184 | |
2185 | return rp->status; |
2186 | } |
2187 | |
2188 | static u8 hci_cc_set_ext_adv_param(struct hci_dev *hdev, void *data, |
2189 | struct sk_buff *skb) |
2190 | { |
2191 | struct hci_rp_le_set_ext_adv_params *rp = data; |
2192 | struct hci_cp_le_set_ext_adv_params *cp; |
2193 | struct adv_info *adv_instance; |
2194 | |
2195 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2196 | |
2197 | if (rp->status) |
2198 | return rp->status; |
2199 | |
2200 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_EXT_ADV_PARAMS); |
2201 | if (!cp) |
2202 | return rp->status; |
2203 | |
2204 | hci_dev_lock(hdev); |
2205 | hdev->adv_addr_type = cp->own_addr_type; |
2206 | if (!cp->handle) { |
2207 | /* Store in hdev for instance 0 */ |
2208 | hdev->adv_tx_power = rp->tx_power; |
2209 | } else { |
2210 | adv_instance = hci_find_adv_instance(hdev, instance: cp->handle); |
2211 | if (adv_instance) |
2212 | adv_instance->tx_power = rp->tx_power; |
2213 | } |
2214 | /* Update adv data as tx power is known now */ |
2215 | hci_update_adv_data(hdev, instance: cp->handle); |
2216 | |
2217 | hci_dev_unlock(hdev); |
2218 | |
2219 | return rp->status; |
2220 | } |
2221 | |
2222 | static u8 (struct hci_dev *hdev, void *data, |
2223 | struct sk_buff *skb) |
2224 | { |
2225 | struct hci_rp_read_rssi *rp = data; |
2226 | struct hci_conn *conn; |
2227 | |
2228 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2229 | |
2230 | if (rp->status) |
2231 | return rp->status; |
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); |
2240 | |
2241 | return rp->status; |
2242 | } |
2243 | |
2244 | static u8 hci_cc_read_tx_power(struct hci_dev *hdev, void *data, |
2245 | struct sk_buff *skb) |
2246 | { |
2247 | struct hci_cp_read_tx_power *sent; |
2248 | struct hci_rp_read_tx_power *rp = data; |
2249 | struct hci_conn *conn; |
2250 | |
2251 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2252 | |
2253 | if (rp->status) |
2254 | return rp->status; |
2255 | |
2256 | sent = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER); |
2257 | if (!sent) |
2258 | return rp->status; |
2259 | |
2260 | hci_dev_lock(hdev); |
2261 | |
2262 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); |
2263 | if (!conn) |
2264 | goto unlock; |
2265 | |
2266 | switch (sent->type) { |
2267 | case 0x00: |
2268 | conn->tx_power = rp->tx_power; |
2269 | break; |
2270 | case 0x01: |
2271 | conn->max_tx_power = rp->tx_power; |
2272 | break; |
2273 | } |
2274 | |
2275 | unlock: |
2276 | hci_dev_unlock(hdev); |
2277 | return rp->status; |
2278 | } |
2279 | |
2280 | static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data, |
2281 | struct sk_buff *skb) |
2282 | { |
2283 | struct hci_ev_status *rp = data; |
2284 | u8 *mode; |
2285 | |
2286 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
2287 | |
2288 | if (rp->status) |
2289 | return rp->status; |
2290 | |
2291 | mode = hci_sent_cmd_data(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE); |
2292 | if (mode) |
2293 | hdev->ssp_debug_mode = *mode; |
2294 | |
2295 | return rp->status; |
2296 | } |
2297 | |
2298 | static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status) |
2299 | { |
2300 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2301 | |
2302 | if (status) { |
2303 | hci_conn_check_pending(hdev); |
2304 | return; |
2305 | } |
2306 | |
2307 | set_bit(nr: HCI_INQUIRY, addr: &hdev->flags); |
2308 | } |
2309 | |
2310 | static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) |
2311 | { |
2312 | struct hci_cp_create_conn *cp; |
2313 | struct hci_conn *conn; |
2314 | |
2315 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2316 | |
2317 | cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN); |
2318 | if (!cp) |
2319 | return; |
2320 | |
2321 | hci_dev_lock(hdev); |
2322 | |
2323 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &cp->bdaddr); |
2324 | |
2325 | bt_dev_dbg(hdev, "bdaddr %pMR hcon %p" , &cp->bdaddr, conn); |
2326 | |
2327 | if (status) { |
2328 | if (conn && conn->state == BT_CONNECT) { |
2329 | if (status != 0x0c || conn->attempt > 2) { |
2330 | conn->state = BT_CLOSED; |
2331 | hci_connect_cfm(conn, status); |
2332 | hci_conn_del(conn); |
2333 | } else |
2334 | conn->state = BT_CONNECT2; |
2335 | } |
2336 | } else { |
2337 | if (!conn) { |
2338 | conn = hci_conn_add_unset(hdev, ACL_LINK, dst: &cp->bdaddr, |
2339 | HCI_ROLE_MASTER); |
2340 | if (!conn) |
2341 | bt_dev_err(hdev, "no memory for new connection" ); |
2342 | } |
2343 | } |
2344 | |
2345 | hci_dev_unlock(hdev); |
2346 | } |
2347 | |
2348 | static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) |
2349 | { |
2350 | struct hci_cp_add_sco *cp; |
2351 | struct hci_conn *acl; |
2352 | struct hci_link *link; |
2353 | __u16 handle; |
2354 | |
2355 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2356 | |
2357 | if (!status) |
2358 | return; |
2359 | |
2360 | cp = hci_sent_cmd_data(hdev, HCI_OP_ADD_SCO); |
2361 | if (!cp) |
2362 | return; |
2363 | |
2364 | handle = __le16_to_cpu(cp->handle); |
2365 | |
2366 | bt_dev_dbg(hdev, "handle 0x%4.4x" , handle); |
2367 | |
2368 | hci_dev_lock(hdev); |
2369 | |
2370 | acl = hci_conn_hash_lookup_handle(hdev, handle); |
2371 | if (acl) { |
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; |
2376 | |
2377 | hci_connect_cfm(conn: link->conn, status); |
2378 | hci_conn_del(conn: link->conn); |
2379 | } |
2380 | } |
2381 | |
2382 | hci_dev_unlock(hdev); |
2383 | } |
2384 | |
2385 | static 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 | |
2390 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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) { |
2404 | hci_connect_cfm(conn, status); |
2405 | hci_conn_drop(conn); |
2406 | } |
2407 | } |
2408 | |
2409 | hci_dev_unlock(hdev); |
2410 | } |
2411 | |
2412 | static 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 | |
2417 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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) { |
2431 | hci_connect_cfm(conn, status); |
2432 | hci_conn_drop(conn); |
2433 | } |
2434 | } |
2435 | |
2436 | hci_dev_unlock(hdev); |
2437 | } |
2438 | |
2439 | static int hci_outgoing_auth_needed(struct hci_dev *hdev, |
2440 | struct hci_conn *conn) |
2441 | { |
2442 | if (conn->state != BT_CONFIG || !conn->out) |
2443 | return 0; |
2444 | |
2445 | if (conn->pending_sec_level == BT_SECURITY_SDP) |
2446 | return 0; |
2447 | |
2448 | /* Only request authentication for SSP connections or non-SSP |
2449 | * devices with sec_level MEDIUM or HIGH or if MITM protection |
2450 | * is requested. |
2451 | */ |
2452 | if (!hci_conn_ssp_enabled(conn) && !(conn->auth_type & 0x01) && |
2453 | conn->pending_sec_level != BT_SECURITY_FIPS && |
2454 | conn->pending_sec_level != BT_SECURITY_HIGH && |
2455 | conn->pending_sec_level != BT_SECURITY_MEDIUM) |
2456 | return 0; |
2457 | |
2458 | return 1; |
2459 | } |
2460 | |
2461 | static int hci_resolve_name(struct hci_dev *hdev, |
2462 | struct inquiry_entry *e) |
2463 | { |
2464 | struct hci_cp_remote_name_req cp; |
2465 | |
2466 | memset(&cp, 0, sizeof(cp)); |
2467 | |
2468 | bacpy(dst: &cp.bdaddr, src: &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, plen: sizeof(cp), param: &cp); |
2474 | } |
2475 | |
2476 | static bool hci_resolve_next_name(struct hci_dev *hdev) |
2477 | { |
2478 | struct discovery_state *discov = &hdev->discovery; |
2479 | struct inquiry_entry *e; |
2480 | |
2481 | if (list_empty(head: &discov->resolve)) |
2482 | return false; |
2483 | |
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 | |
2490 | e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, state: NAME_NEEDED); |
2491 | if (!e) |
2492 | return false; |
2493 | |
2494 | if (hci_resolve_name(hdev, e) == 0) { |
2495 | e->name_state = NAME_PENDING; |
2496 | return true; |
2497 | } |
2498 | |
2499 | return false; |
2500 | } |
2501 | |
2502 | static void hci_check_pending_name(struct hci_dev *hdev, struct hci_conn *conn, |
2503 | bdaddr_t *bdaddr, u8 *name, u8 name_len) |
2504 | { |
2505 | struct discovery_state *discov = &hdev->discovery; |
2506 | struct inquiry_entry *e; |
2507 | |
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) && |
2515 | !test_and_set_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags)) |
2516 | mgmt_device_connected(hdev, conn, name, name_len); |
2517 | |
2518 | if (discov->state == DISCOVERY_STOPPED) |
2519 | return; |
2520 | |
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, state: NAME_PENDING); |
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(entry: &e->list); |
2536 | |
2537 | e->name_state = name ? NAME_KNOWN : NAME_NOT_KNOWN; |
2538 | mgmt_remote_name(hdev, bdaddr, ACL_LINK, addr_type: 0x00, rssi: e->data.rssi, |
2539 | name, name_len); |
2540 | |
2541 | if (hci_resolve_next_name(hdev)) |
2542 | return; |
2543 | |
2544 | discov_complete: |
2545 | hci_discovery_set_state(hdev, state: DISCOVERY_STOPPED); |
2546 | } |
2547 | |
2548 | static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) |
2549 | { |
2550 | struct hci_cp_remote_name_req *cp; |
2551 | struct hci_conn *conn; |
2552 | |
2553 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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 | |
2566 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &cp->bdaddr); |
2567 | |
2568 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
2569 | hci_check_pending_name(hdev, conn, bdaddr: &cp->bdaddr, NULL, name_len: 0); |
2570 | |
2571 | if (!conn) |
2572 | goto unlock; |
2573 | |
2574 | if (!hci_outgoing_auth_needed(hdev, conn)) |
2575 | goto unlock; |
2576 | |
2577 | if (!test_and_set_bit(nr: HCI_CONN_AUTH_PEND, addr: &conn->flags)) { |
2578 | struct hci_cp_auth_requested auth_cp; |
2579 | |
2580 | set_bit(nr: HCI_CONN_AUTH_INITIATOR, addr: &conn->flags); |
2581 | |
2582 | auth_cp.handle = __cpu_to_le16(conn->handle); |
2583 | hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, |
2584 | plen: sizeof(auth_cp), param: &auth_cp); |
2585 | } |
2586 | |
2587 | unlock: |
2588 | hci_dev_unlock(hdev); |
2589 | } |
2590 | |
2591 | static 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 | |
2596 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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) { |
2610 | hci_connect_cfm(conn, status); |
2611 | hci_conn_drop(conn); |
2612 | } |
2613 | } |
2614 | |
2615 | hci_dev_unlock(hdev); |
2616 | } |
2617 | |
2618 | static 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 | |
2623 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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) { |
2637 | hci_connect_cfm(conn, status); |
2638 | hci_conn_drop(conn); |
2639 | } |
2640 | } |
2641 | |
2642 | hci_dev_unlock(hdev); |
2643 | } |
2644 | |
2645 | static void hci_setup_sync_conn_status(struct hci_dev *hdev, __u16 handle, |
2646 | __u8 status) |
2647 | { |
2648 | struct hci_conn *acl; |
2649 | struct hci_link *link; |
2650 | |
2651 | bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x" , handle, status); |
2652 | |
2653 | hci_dev_lock(hdev); |
2654 | |
2655 | acl = hci_conn_hash_lookup_handle(hdev, handle); |
2656 | if (acl) { |
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; |
2661 | |
2662 | hci_connect_cfm(conn: link->conn, status); |
2663 | hci_conn_del(conn: link->conn); |
2664 | } |
2665 | } |
2666 | |
2667 | hci_dev_unlock(hdev); |
2668 | } |
2669 | |
2670 | static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status) |
2671 | { |
2672 | struct hci_cp_setup_sync_conn *cp; |
2673 | |
2674 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2675 | |
2676 | if (!status) |
2677 | return; |
2678 | |
2679 | cp = hci_sent_cmd_data(hdev, HCI_OP_SETUP_SYNC_CONN); |
2680 | if (!cp) |
2681 | return; |
2682 | |
2683 | hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status); |
2684 | } |
2685 | |
2686 | static void hci_cs_enhanced_setup_sync_conn(struct hci_dev *hdev, __u8 status) |
2687 | { |
2688 | struct hci_cp_enhanced_setup_sync_conn *cp; |
2689 | |
2690 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2691 | |
2692 | if (!status) |
2693 | return; |
2694 | |
2695 | cp = hci_sent_cmd_data(hdev, HCI_OP_ENHANCED_SETUP_SYNC_CONN); |
2696 | if (!cp) |
2697 | return; |
2698 | |
2699 | hci_setup_sync_conn_status(hdev, __le16_to_cpu(cp->handle), status); |
2700 | } |
2701 | |
2702 | static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status) |
2703 | { |
2704 | struct hci_cp_sniff_mode *cp; |
2705 | struct hci_conn *conn; |
2706 | |
2707 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2708 | |
2709 | if (!status) |
2710 | return; |
2711 | |
2712 | cp = hci_sent_cmd_data(hdev, HCI_OP_SNIFF_MODE); |
2713 | if (!cp) |
2714 | return; |
2715 | |
2716 | hci_dev_lock(hdev); |
2717 | |
2718 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
2719 | if (conn) { |
2720 | clear_bit(nr: HCI_CONN_MODE_CHANGE_PEND, addr: &conn->flags); |
2721 | |
2722 | if (test_and_clear_bit(nr: HCI_CONN_SCO_SETUP_PEND, addr: &conn->flags)) |
2723 | hci_sco_setup(conn, status); |
2724 | } |
2725 | |
2726 | hci_dev_unlock(hdev); |
2727 | } |
2728 | |
2729 | static 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; |
2733 | |
2734 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2735 | |
2736 | if (!status) |
2737 | return; |
2738 | |
2739 | cp = hci_sent_cmd_data(hdev, HCI_OP_EXIT_SNIFF_MODE); |
2740 | if (!cp) |
2741 | return; |
2742 | |
2743 | hci_dev_lock(hdev); |
2744 | |
2745 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle)); |
2746 | if (conn) { |
2747 | clear_bit(nr: HCI_CONN_MODE_CHANGE_PEND, addr: &conn->flags); |
2748 | |
2749 | if (test_and_clear_bit(nr: HCI_CONN_SCO_SETUP_PEND, addr: &conn->flags)) |
2750 | hci_sco_setup(conn, status); |
2751 | } |
2752 | |
2753 | hci_dev_unlock(hdev); |
2754 | } |
2755 | |
2756 | static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) |
2757 | { |
2758 | struct hci_cp_disconnect *cp; |
2759 | struct hci_conn_params *params; |
2760 | struct hci_conn *conn; |
2761 | bool mgmt_conn; |
2762 | |
2763 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2764 | |
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) |
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)); |
2778 | if (!conn) |
2779 | goto unlock; |
2780 | |
2781 | if (status) { |
2782 | mgmt_disconnect_failed(hdev, bdaddr: &conn->dst, link_type: conn->type, |
2783 | addr_type: conn->dst_type, status); |
2784 | |
2785 | if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) { |
2786 | hdev->cur_adv_instance = conn->adv_instance; |
2787 | hci_enable_advertising(hdev); |
2788 | } |
2789 | |
2790 | /* Inform sockets conn is gone before we delete it */ |
2791 | hci_disconn_cfm(conn, HCI_ERROR_UNSPECIFIED); |
2792 | |
2793 | goto done; |
2794 | } |
2795 | |
2796 | mgmt_conn = test_and_clear_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags); |
2797 | |
2798 | if (conn->type == ACL_LINK) { |
2799 | if (test_and_clear_bit(nr: HCI_CONN_FLUSH_KEY, addr: &conn->flags)) |
2800 | hci_remove_link_key(hdev, bdaddr: &conn->dst); |
2801 | } |
2802 | |
2803 | params = hci_conn_params_lookup(hdev, addr: &conn->dst, addr_type: 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: |
2813 | hci_pend_le_list_del_init(param: params); |
2814 | hci_pend_le_list_add(param: params, list: &hdev->pend_le_conns); |
2815 | break; |
2816 | |
2817 | default: |
2818 | break; |
2819 | } |
2820 | } |
2821 | |
2822 | mgmt_device_disconnected(hdev, bdaddr: &conn->dst, link_type: conn->type, addr_type: conn->dst_type, |
2823 | reason: cp->reason, mgmt_connected: mgmt_conn); |
2824 | |
2825 | hci_disconn_cfm(conn, reason: cp->reason); |
2826 | |
2827 | done: |
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); |
2834 | unlock: |
2835 | hci_dev_unlock(hdev); |
2836 | } |
2837 | |
2838 | static u8 ev_bdaddr_type(struct hci_dev *hdev, u8 type, bool *resolved) |
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: |
2846 | if (resolved) |
2847 | *resolved = true; |
2848 | return ADDR_LE_DEV_PUBLIC; |
2849 | case ADDR_LE_DEV_RANDOM_RESOLVED: |
2850 | if (resolved) |
2851 | *resolved = true; |
2852 | return ADDR_LE_DEV_RANDOM; |
2853 | } |
2854 | |
2855 | if (resolved) |
2856 | *resolved = false; |
2857 | return type; |
2858 | } |
2859 | |
2860 | static 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) |
2863 | { |
2864 | struct hci_conn *conn; |
2865 | |
2866 | conn = hci_conn_hash_lookup_le(hdev, ba: peer_addr, |
2867 | ba_type: peer_addr_type); |
2868 | if (!conn) |
2869 | return; |
2870 | |
2871 | own_address_type = ev_bdaddr_type(hdev, type: own_address_type, NULL); |
2872 | |
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 | */ |
2877 | conn->init_addr_type = own_address_type; |
2878 | if (own_address_type == ADDR_LE_DEV_RANDOM) |
2879 | bacpy(dst: &conn->init_addr, src: &hdev->random_addr); |
2880 | else |
2881 | bacpy(dst: &conn->init_addr, src: &hdev->bdaddr); |
2882 | |
2883 | conn->resp_addr_type = peer_addr_type; |
2884 | bacpy(dst: &conn->resp_addr, src: peer_addr); |
2885 | } |
2886 | |
2887 | static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) |
2888 | { |
2889 | struct hci_cp_le_create_conn *cp; |
2890 | |
2891 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2892 | |
2893 | /* All connection failure handling is taken care of by the |
2894 | * hci_conn_failed function which is triggered by the HCI |
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, peer_addr: &cp->peer_addr, peer_addr_type: cp->peer_addr_type, |
2907 | own_address_type: cp->own_address_type, filter_policy: cp->filter_policy); |
2908 | |
2909 | hci_dev_unlock(hdev); |
2910 | } |
2911 | |
2912 | static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status) |
2913 | { |
2914 | struct hci_cp_le_ext_create_conn *cp; |
2915 | |
2916 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
2917 | |
2918 | /* All connection failure handling is taken care of by the |
2919 | * hci_conn_failed function which is triggered by the HCI |
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, peer_addr: &cp->peer_addr, peer_addr_type: cp->peer_addr_type, |
2932 | own_address_type: cp->own_addr_type, filter_policy: cp->filter_policy); |
2933 | |
2934 | hci_dev_unlock(hdev); |
2935 | } |
2936 | |
2937 | static 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 | |
2942 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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 | |
2964 | static 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 | |
2969 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
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 | |
2990 | unlock: |
2991 | hci_dev_unlock(hdev); |
2992 | } |
2993 | |
2994 | static 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, ba: &cp->bdaddr); |
3011 | if (conn) |
3012 | clear_bit(nr: HCI_CONN_RSWITCH_PEND, addr: &conn->flags); |
3013 | |
3014 | hci_dev_unlock(hdev); |
3015 | } |
3016 | |
3017 | static void hci_inquiry_complete_evt(struct hci_dev *hdev, void *data, |
3018 | struct sk_buff *skb) |
3019 | { |
3020 | struct hci_ev_status *ev = data; |
3021 | struct discovery_state *discov = &hdev->discovery; |
3022 | struct inquiry_entry *e; |
3023 | |
3024 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3025 | |
3026 | hci_conn_check_pending(hdev); |
3027 | |
3028 | if (!test_and_clear_bit(nr: HCI_INQUIRY, addr: &hdev->flags)) |
3029 | return; |
3030 | |
3031 | smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ |
3032 | wake_up_bit(word: &hdev->flags, bit: HCI_INQUIRY); |
3033 | |
3034 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
3035 | return; |
3036 | |
3037 | hci_dev_lock(hdev); |
3038 | |
3039 | if (discov->state != DISCOVERY_FINDING) |
3040 | goto unlock; |
3041 | |
3042 | if (list_empty(head: &discov->resolve)) { |
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, state: DISCOVERY_STOPPED); |
3053 | goto unlock; |
3054 | } |
3055 | |
3056 | e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, state: NAME_NEEDED); |
3057 | if (e && hci_resolve_name(hdev, e) == 0) { |
3058 | e->name_state = NAME_PENDING; |
3059 | hci_discovery_set_state(hdev, state: DISCOVERY_RESOLVING); |
3060 | discov->name_resolve_timeout = jiffies + NAME_RESOLVE_DURATION; |
3061 | } else { |
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, state: DISCOVERY_STOPPED); |
3072 | } |
3073 | |
3074 | unlock: |
3075 | hci_dev_unlock(hdev); |
3076 | } |
3077 | |
3078 | static void hci_inquiry_result_evt(struct hci_dev *hdev, void *edata, |
3079 | struct sk_buff *skb) |
3080 | { |
3081 | struct hci_ev_inquiry_result *ev = edata; |
3082 | struct inquiry_data data; |
3083 | int i; |
3084 | |
3085 | if (!hci_ev_skb_pull(hdev, skb, HCI_EV_INQUIRY_RESULT, |
3086 | flex_array_size(ev, info, ev->num))) |
3087 | return; |
3088 | |
3089 | bt_dev_dbg(hdev, "num %d" , ev->num); |
3090 | |
3091 | if (!ev->num) |
3092 | return; |
3093 | |
3094 | if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) |
3095 | return; |
3096 | |
3097 | hci_dev_lock(hdev); |
3098 | |
3099 | for (i = 0; i < ev->num; i++) { |
3100 | struct inquiry_info *info = &ev->info[i]; |
3101 | u32 flags; |
3102 | |
3103 | bacpy(dst: &data.bdaddr, src: &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; |
3109 | data.rssi = HCI_RSSI_INVALID; |
3110 | data.ssp_mode = 0x00; |
3111 | |
3112 | flags = hci_inquiry_cache_update(hdev, data: &data, name_known: false); |
3113 | |
3114 | mgmt_device_found(hdev, bdaddr: &info->bdaddr, ACL_LINK, addr_type: 0x00, |
3115 | dev_class: info->dev_class, HCI_RSSI_INVALID, |
3116 | flags, NULL, eir_len: 0, NULL, scan_rsp_len: 0, instant: 0); |
3117 | } |
3118 | |
3119 | hci_dev_unlock(hdev); |
3120 | } |
3121 | |
3122 | static void hci_conn_complete_evt(struct hci_dev *hdev, void *data, |
3123 | struct sk_buff *skb) |
3124 | { |
3125 | struct hci_ev_conn_complete *ev = data; |
3126 | struct hci_conn *conn; |
3127 | u8 status = ev->status; |
3128 | |
3129 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
3130 | |
3131 | hci_dev_lock(hdev); |
3132 | |
3133 | conn = hci_conn_hash_lookup_ba(hdev, type: ev->link_type, ba: &ev->bdaddr); |
3134 | if (!conn) { |
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 | |
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 |
3144 | * automatically. |
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. |
3149 | */ |
3150 | if (ev->link_type == ACL_LINK && |
3151 | hci_bdaddr_list_lookup_with_flags(list: &hdev->accept_list, |
3152 | bdaddr: &ev->bdaddr, |
3153 | BDADDR_BREDR)) { |
3154 | conn = hci_conn_add_unset(hdev, type: ev->link_type, |
3155 | dst: &ev->bdaddr, HCI_ROLE_SLAVE); |
3156 | if (!conn) { |
3157 | bt_dev_err(hdev, "no memory for new conn" ); |
3158 | goto unlock; |
3159 | } |
3160 | } else { |
3161 | if (ev->link_type != SCO_LINK) |
3162 | goto unlock; |
3163 | |
3164 | conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, |
3165 | ba: &ev->bdaddr); |
3166 | if (!conn) |
3167 | goto unlock; |
3168 | |
3169 | conn->type = SCO_LINK; |
3170 | } |
3171 | } |
3172 | |
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 | */ |
3179 | if (!HCI_CONN_HANDLE_UNSET(conn->handle)) { |
3180 | bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection" ); |
3181 | goto unlock; |
3182 | } |
3183 | |
3184 | if (!status) { |
3185 | status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle)); |
3186 | if (status) |
3187 | goto done; |
3188 | |
3189 | if (conn->type == ACL_LINK) { |
3190 | conn->state = BT_CONFIG; |
3191 | hci_conn_hold(conn); |
3192 | |
3193 | if (!conn->out && !hci_conn_ssp_enabled(conn) && |
3194 | !hci_find_link_key(hdev, bdaddr: &ev->bdaddr)) |
3195 | conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
3196 | else |
3197 | conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
3198 | } else |
3199 | conn->state = BT_CONNECTED; |
3200 | |
3201 | hci_debugfs_create_conn(conn); |
3202 | hci_conn_add_sysfs(conn); |
3203 | |
3204 | if (test_bit(HCI_AUTH, &hdev->flags)) |
3205 | set_bit(nr: HCI_CONN_AUTH, addr: &conn->flags); |
3206 | |
3207 | if (test_bit(HCI_ENCRYPT, &hdev->flags)) |
3208 | set_bit(nr: HCI_CONN_ENCRYPT, addr: &conn->flags); |
3209 | |
3210 | /* Get remote features */ |
3211 | if (conn->type == ACL_LINK) { |
3212 | struct hci_cp_read_remote_features cp; |
3213 | cp.handle = ev->handle; |
3214 | hci_send_cmd(hdev, HCI_OP_READ_REMOTE_FEATURES, |
3215 | plen: sizeof(cp), param: &cp); |
3216 | |
3217 | hci_update_scan(hdev); |
3218 | } |
3219 | |
3220 | /* Set packet type for incoming connection */ |
3221 | if (!conn->out && hdev->hci_ver < BLUETOOTH_VER_2_0) { |
3222 | struct hci_cp_change_conn_ptype cp; |
3223 | cp.handle = ev->handle; |
3224 | cp.pkt_type = cpu_to_le16(conn->pkt_type); |
3225 | hci_send_cmd(hdev, HCI_OP_CHANGE_CONN_PTYPE, plen: sizeof(cp), |
3226 | param: &cp); |
3227 | } |
3228 | } |
3229 | |
3230 | if (conn->type == ACL_LINK) |
3231 | hci_sco_setup(conn, status: ev->status); |
3232 | |
3233 | done: |
3234 | if (status) { |
3235 | hci_conn_failed(conn, status); |
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 | |
3244 | hci_connect_cfm(conn, status); |
3245 | } |
3246 | |
3247 | unlock: |
3248 | hci_dev_unlock(hdev); |
3249 | |
3250 | hci_conn_check_pending(hdev); |
3251 | } |
3252 | |
3253 | static void hci_reject_conn(struct hci_dev *hdev, bdaddr_t *bdaddr) |
3254 | { |
3255 | struct hci_cp_reject_conn_req cp; |
3256 | |
3257 | bacpy(dst: &cp.bdaddr, src: bdaddr); |
3258 | cp.reason = HCI_ERROR_REJ_BAD_ADDR; |
3259 | hci_send_cmd(hdev, HCI_OP_REJECT_CONN_REQ, plen: sizeof(cp), param: &cp); |
3260 | } |
3261 | |
3262 | static void hci_conn_request_evt(struct hci_dev *hdev, void *data, |
3263 | struct sk_buff *skb) |
3264 | { |
3265 | struct hci_ev_conn_request *ev = data; |
3266 | int mask = hdev->link_mode; |
3267 | struct inquiry_entry *ie; |
3268 | struct hci_conn *conn; |
3269 | __u8 flags = 0; |
3270 | |
3271 | bt_dev_dbg(hdev, "bdaddr %pMR type 0x%x" , &ev->bdaddr, ev->link_type); |
3272 | |
3273 | /* Reject incoming connection from device with same BD ADDR against |
3274 | * CVE-2020-26555 |
3275 | */ |
3276 | if (hdev && !bacmp(ba1: &hdev->bdaddr, ba2: &ev->bdaddr)) { |
3277 | bt_dev_dbg(hdev, "Reject connection with same BD_ADDR %pMR\n" , |
3278 | &ev->bdaddr); |
3279 | hci_reject_conn(hdev, bdaddr: &ev->bdaddr); |
3280 | return; |
3281 | } |
3282 | |
3283 | mask |= hci_proto_connect_ind(hdev, bdaddr: &ev->bdaddr, type: ev->link_type, |
3284 | flags: &flags); |
3285 | |
3286 | if (!(mask & HCI_LM_ACCEPT)) { |
3287 | hci_reject_conn(hdev, bdaddr: &ev->bdaddr); |
3288 | return; |
3289 | } |
3290 | |
3291 | hci_dev_lock(hdev); |
3292 | |
3293 | if (hci_bdaddr_list_lookup(list: &hdev->reject_list, bdaddr: &ev->bdaddr, |
3294 | BDADDR_BREDR)) { |
3295 | hci_reject_conn(hdev, bdaddr: &ev->bdaddr); |
3296 | goto unlock; |
3297 | } |
3298 | |
3299 | /* Require HCI_CONNECTABLE or an accept list entry to accept the |
3300 | * connection. These features are only touched through mgmt so |
3301 | * only do the checks if HCI_MGMT is set. |
3302 | */ |
3303 | if (hci_dev_test_flag(hdev, HCI_MGMT) && |
3304 | !hci_dev_test_flag(hdev, HCI_CONNECTABLE) && |
3305 | !hci_bdaddr_list_lookup_with_flags(list: &hdev->accept_list, bdaddr: &ev->bdaddr, |
3306 | BDADDR_BREDR)) { |
3307 | hci_reject_conn(hdev, bdaddr: &ev->bdaddr); |
3308 | goto unlock; |
3309 | } |
3310 | |
3311 | /* Connection accepted */ |
3312 | |
3313 | ie = hci_inquiry_cache_lookup(hdev, bdaddr: &ev->bdaddr); |
3314 | if (ie) |
3315 | memcpy(ie->data.dev_class, ev->dev_class, 3); |
3316 | |
3317 | conn = hci_conn_hash_lookup_ba(hdev, type: ev->link_type, |
3318 | ba: &ev->bdaddr); |
3319 | if (!conn) { |
3320 | conn = hci_conn_add_unset(hdev, type: ev->link_type, dst: &ev->bdaddr, |
3321 | HCI_ROLE_SLAVE); |
3322 | if (!conn) { |
3323 | bt_dev_err(hdev, "no memory for new connection" ); |
3324 | goto unlock; |
3325 | } |
3326 | } |
3327 | |
3328 | memcpy(conn->dev_class, ev->dev_class, 3); |
3329 | |
3330 | hci_dev_unlock(hdev); |
3331 | |
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; |
3336 | |
3337 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
3338 | |
3339 | if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER)) |
3340 | cp.role = 0x00; /* Become central */ |
3341 | else |
3342 | cp.role = 0x01; /* Remain peripheral */ |
3343 | |
3344 | hci_send_cmd(hdev, HCI_OP_ACCEPT_CONN_REQ, plen: sizeof(cp), param: &cp); |
3345 | } else if (!(flags & HCI_PROTO_DEFER)) { |
3346 | struct hci_cp_accept_sync_conn_req cp; |
3347 | conn->state = BT_CONNECT; |
3348 | |
3349 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
3350 | cp.pkt_type = cpu_to_le16(conn->pkt_type); |
3351 | |
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; |
3357 | |
3358 | hci_send_cmd(hdev, HCI_OP_ACCEPT_SYNC_CONN_REQ, plen: sizeof(cp), |
3359 | param: &cp); |
3360 | } else { |
3361 | conn->state = BT_CONNECT2; |
3362 | hci_connect_cfm(conn, status: 0); |
3363 | } |
3364 | |
3365 | return; |
3366 | unlock: |
3367 | hci_dev_unlock(hdev); |
3368 | } |
3369 | |
3370 | static 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 | |
3386 | static void hci_disconn_complete_evt(struct hci_dev *hdev, void *data, |
3387 | struct sk_buff *skb) |
3388 | { |
3389 | struct hci_ev_disconn_complete *ev = data; |
3390 | u8 reason; |
3391 | struct hci_conn_params *params; |
3392 | struct hci_conn *conn; |
3393 | bool mgmt_connected; |
3394 | |
3395 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3396 | |
3397 | hci_dev_lock(hdev); |
3398 | |
3399 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
3400 | if (!conn) |
3401 | goto unlock; |
3402 | |
3403 | if (ev->status) { |
3404 | mgmt_disconnect_failed(hdev, bdaddr: &conn->dst, link_type: conn->type, |
3405 | addr_type: conn->dst_type, status: ev->status); |
3406 | goto unlock; |
3407 | } |
3408 | |
3409 | conn->state = BT_CLOSED; |
3410 | |
3411 | mgmt_connected = test_and_clear_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags); |
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(err: ev->reason); |
3417 | |
3418 | mgmt_device_disconnected(hdev, bdaddr: &conn->dst, link_type: conn->type, addr_type: conn->dst_type, |
3419 | reason, mgmt_connected); |
3420 | |
3421 | if (conn->type == ACL_LINK) { |
3422 | if (test_and_clear_bit(nr: HCI_CONN_FLUSH_KEY, addr: &conn->flags)) |
3423 | hci_remove_link_key(hdev, bdaddr: &conn->dst); |
3424 | |
3425 | hci_update_scan(hdev); |
3426 | } |
3427 | |
3428 | params = hci_conn_params_lookup(hdev, addr: &conn->dst, addr_type: 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; |
3434 | fallthrough; |
3435 | |
3436 | case HCI_AUTO_CONN_DIRECT: |
3437 | case HCI_AUTO_CONN_ALWAYS: |
3438 | hci_pend_le_list_del_init(param: params); |
3439 | hci_pend_le_list_add(param: params, list: &hdev->pend_le_conns); |
3440 | hci_update_passive_scan(hdev); |
3441 | break; |
3442 | |
3443 | default: |
3444 | break; |
3445 | } |
3446 | } |
3447 | |
3448 | hci_disconn_cfm(conn, reason: ev->reason); |
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 | */ |
3460 | if (conn->type == LE_LINK && conn->role == HCI_ROLE_SLAVE) { |
3461 | hdev->cur_adv_instance = conn->adv_instance; |
3462 | hci_enable_advertising(hdev); |
3463 | } |
3464 | |
3465 | hci_conn_del(conn); |
3466 | |
3467 | unlock: |
3468 | hci_dev_unlock(hdev); |
3469 | } |
3470 | |
3471 | static void hci_auth_complete_evt(struct hci_dev *hdev, void *data, |
3472 | struct sk_buff *skb) |
3473 | { |
3474 | struct hci_ev_auth_complete *ev = data; |
3475 | struct hci_conn *conn; |
3476 | |
3477 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3478 | |
3479 | hci_dev_lock(hdev); |
3480 | |
3481 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
3482 | if (!conn) |
3483 | goto unlock; |
3484 | |
3485 | if (!ev->status) { |
3486 | clear_bit(nr: HCI_CONN_AUTH_FAILURE, addr: &conn->flags); |
3487 | |
3488 | if (!hci_conn_ssp_enabled(conn) && |
3489 | test_bit(HCI_CONN_REAUTH_PEND, &conn->flags)) { |
3490 | bt_dev_info(hdev, "re-auth of legacy device is not possible." ); |
3491 | } else { |
3492 | set_bit(nr: HCI_CONN_AUTH, addr: &conn->flags); |
3493 | conn->sec_level = conn->pending_sec_level; |
3494 | } |
3495 | } else { |
3496 | if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING) |
3497 | set_bit(nr: HCI_CONN_AUTH_FAILURE, addr: &conn->flags); |
3498 | |
3499 | mgmt_auth_failed(conn, status: ev->status); |
3500 | } |
3501 | |
3502 | clear_bit(nr: HCI_CONN_AUTH_PEND, addr: &conn->flags); |
3503 | clear_bit(nr: HCI_CONN_REAUTH_PEND, addr: &conn->flags); |
3504 | |
3505 | if (conn->state == BT_CONFIG) { |
3506 | if (!ev->status && hci_conn_ssp_enabled(conn)) { |
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, plen: sizeof(cp), |
3511 | param: &cp); |
3512 | } else { |
3513 | conn->state = BT_CONNECTED; |
3514 | hci_connect_cfm(conn, status: ev->status); |
3515 | hci_conn_drop(conn); |
3516 | } |
3517 | } else { |
3518 | hci_auth_cfm(conn, status: ev->status); |
3519 | |
3520 | hci_conn_hold(conn); |
3521 | conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
3522 | hci_conn_drop(conn); |
3523 | } |
3524 | |
3525 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { |
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, plen: sizeof(cp), |
3531 | param: &cp); |
3532 | } else { |
3533 | clear_bit(nr: HCI_CONN_ENCRYPT_PEND, addr: &conn->flags); |
3534 | hci_encrypt_cfm(conn, status: ev->status); |
3535 | } |
3536 | } |
3537 | |
3538 | unlock: |
3539 | hci_dev_unlock(hdev); |
3540 | } |
3541 | |
3542 | static void hci_remote_name_evt(struct hci_dev *hdev, void *data, |
3543 | struct sk_buff *skb) |
3544 | { |
3545 | struct hci_ev_remote_name *ev = data; |
3546 | struct hci_conn *conn; |
3547 | |
3548 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3549 | |
3550 | hci_conn_check_pending(hdev); |
3551 | |
3552 | hci_dev_lock(hdev); |
3553 | |
3554 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
3555 | |
3556 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
3557 | goto check_auth; |
3558 | |
3559 | if (ev->status == 0) |
3560 | hci_check_pending_name(hdev, conn, bdaddr: &ev->bdaddr, name: ev->name, |
3561 | name_len: strnlen(p: ev->name, HCI_MAX_NAME_LENGTH)); |
3562 | else |
3563 | hci_check_pending_name(hdev, conn, bdaddr: &ev->bdaddr, NULL, name_len: 0); |
3564 | |
3565 | check_auth: |
3566 | if (!conn) |
3567 | goto unlock; |
3568 | |
3569 | if (!hci_outgoing_auth_needed(hdev, conn)) |
3570 | goto unlock; |
3571 | |
3572 | if (!test_and_set_bit(nr: HCI_CONN_AUTH_PEND, addr: &conn->flags)) { |
3573 | struct hci_cp_auth_requested cp; |
3574 | |
3575 | set_bit(nr: HCI_CONN_AUTH_INITIATOR, addr: &conn->flags); |
3576 | |
3577 | cp.handle = __cpu_to_le16(conn->handle); |
3578 | hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, plen: sizeof(cp), param: &cp); |
3579 | } |
3580 | |
3581 | unlock: |
3582 | hci_dev_unlock(hdev); |
3583 | } |
3584 | |
3585 | static void hci_encrypt_change_evt(struct hci_dev *hdev, void *data, |
3586 | struct sk_buff *skb) |
3587 | { |
3588 | struct hci_ev_encrypt_change *ev = data; |
3589 | struct hci_conn *conn; |
3590 | |
3591 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3592 | |
3593 | hci_dev_lock(hdev); |
3594 | |
3595 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
3596 | if (!conn) |
3597 | goto unlock; |
3598 | |
3599 | if (!ev->status) { |
3600 | if (ev->encrypt) { |
3601 | /* Encryption implies authentication */ |
3602 | set_bit(nr: HCI_CONN_AUTH, addr: &conn->flags); |
3603 | set_bit(nr: HCI_CONN_ENCRYPT, addr: &conn->flags); |
3604 | conn->sec_level = conn->pending_sec_level; |
3605 | |
3606 | /* P-256 authentication key implies FIPS */ |
3607 | if (conn->key_type == HCI_LK_AUTH_COMBINATION_P256) |
3608 | set_bit(nr: HCI_CONN_FIPS, addr: &conn->flags); |
3609 | |
3610 | if ((conn->type == ACL_LINK && ev->encrypt == 0x02) || |
3611 | conn->type == LE_LINK) |
3612 | set_bit(nr: HCI_CONN_AES_CCM, addr: &conn->flags); |
3613 | } else { |
3614 | clear_bit(nr: HCI_CONN_ENCRYPT, addr: &conn->flags); |
3615 | clear_bit(nr: HCI_CONN_AES_CCM, addr: &conn->flags); |
3616 | } |
3617 | } |
3618 | |
3619 | /* We should disregard the current RPA and generate a new one |
3620 | * whenever the encryption procedure fails. |
3621 | */ |
3622 | if (ev->status && conn->type == LE_LINK) { |
3623 | hci_dev_set_flag(hdev, HCI_RPA_EXPIRED); |
3624 | hci_adv_instances_set_rpa_expired(hdev, rpa_expired: true); |
3625 | } |
3626 | |
3627 | clear_bit(nr: HCI_CONN_ENCRYPT_PEND, addr: &conn->flags); |
3628 | |
3629 | /* Check link security requirements are met */ |
3630 | if (!hci_conn_check_link_mode(conn)) |
3631 | ev->status = HCI_ERROR_AUTH_FAILURE; |
3632 | |
3633 | if (ev->status && conn->state == BT_CONNECTED) { |
3634 | if (ev->status == HCI_ERROR_PIN_OR_KEY_MISSING) |
3635 | set_bit(nr: HCI_CONN_AUTH_FAILURE, addr: &conn->flags); |
3636 | |
3637 | /* Notify upper layers so they can cleanup before |
3638 | * disconnecting. |
3639 | */ |
3640 | hci_encrypt_cfm(conn, status: ev->status); |
3641 | hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); |
3642 | hci_conn_drop(conn); |
3643 | goto unlock; |
3644 | } |
3645 | |
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; |
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 | |
3659 | cp.handle = cpu_to_le16(conn->handle); |
3660 | if (hci_send_cmd(hdev, HCI_OP_READ_ENC_KEY_SIZE, |
3661 | plen: sizeof(cp), param: &cp)) { |
3662 | bt_dev_err(hdev, "sending read key size failed" ); |
3663 | conn->enc_key_size = HCI_LINK_KEY_SIZE; |
3664 | goto notify; |
3665 | } |
3666 | |
3667 | goto unlock; |
3668 | } |
3669 | |
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); |
3685 | if (hci_send_cmd(hdev: conn->hdev, HCI_OP_WRITE_AUTH_PAYLOAD_TO, |
3686 | plen: sizeof(cp), param: &cp)) { |
3687 | bt_dev_err(hdev, "write auth payload timeout failed" ); |
3688 | goto notify; |
3689 | } |
3690 | |
3691 | goto unlock; |
3692 | } |
3693 | |
3694 | notify: |
3695 | hci_encrypt_cfm(conn, status: ev->status); |
3696 | |
3697 | unlock: |
3698 | hci_dev_unlock(hdev); |
3699 | } |
3700 | |
3701 | static void hci_change_link_key_complete_evt(struct hci_dev *hdev, void *data, |
3702 | struct sk_buff *skb) |
3703 | { |
3704 | struct hci_ev_change_link_key_complete *ev = data; |
3705 | struct hci_conn *conn; |
3706 | |
3707 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3708 | |
3709 | hci_dev_lock(hdev); |
3710 | |
3711 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
3712 | if (conn) { |
3713 | if (!ev->status) |
3714 | set_bit(nr: HCI_CONN_SECURE, addr: &conn->flags); |
3715 | |
3716 | clear_bit(nr: HCI_CONN_AUTH_PEND, addr: &conn->flags); |
3717 | |
3718 | hci_key_change_cfm(conn, status: ev->status); |
3719 | } |
3720 | |
3721 | hci_dev_unlock(hdev); |
3722 | } |
3723 | |
3724 | static void hci_remote_features_evt(struct hci_dev *hdev, void *data, |
3725 | struct sk_buff *skb) |
3726 | { |
3727 | struct hci_ev_remote_features *ev = data; |
3728 | struct hci_conn *conn; |
3729 | |
3730 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
3731 | |
3732 | hci_dev_lock(hdev); |
3733 | |
3734 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
3735 | if (!conn) |
3736 | goto unlock; |
3737 | |
3738 | if (!ev->status) |
3739 | memcpy(conn->features[0], ev->features, 8); |
3740 | |
3741 | if (conn->state != BT_CONFIG) |
3742 | goto unlock; |
3743 | |
3744 | if (!ev->status && lmp_ext_feat_capable(hdev) && |
3745 | lmp_ext_feat_capable(conn)) { |
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, |
3750 | plen: sizeof(cp), param: &cp); |
3751 | goto unlock; |
3752 | } |
3753 | |
3754 | if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) { |
3755 | struct hci_cp_remote_name_req cp; |
3756 | memset(&cp, 0, sizeof(cp)); |
3757 | bacpy(dst: &cp.bdaddr, src: &conn->dst); |
3758 | cp.pscan_rep_mode = 0x02; |
3759 | hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, plen: sizeof(cp), param: &cp); |
3760 | } else if (!test_and_set_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags)) |
3761 | mgmt_device_connected(hdev, conn, NULL, name_len: 0); |
3762 | |
3763 | if (!hci_outgoing_auth_needed(hdev, conn)) { |
3764 | conn->state = BT_CONNECTED; |
3765 | hci_connect_cfm(conn, status: ev->status); |
3766 | hci_conn_drop(conn); |
3767 | } |
3768 | |
3769 | unlock: |
3770 | hci_dev_unlock(hdev); |
3771 | } |
3772 | |
3773 | static inline void handle_cmd_cnt_and_timer(struct hci_dev *hdev, u8 ncmd) |
3774 | { |
3775 | cancel_delayed_work(dwork: &hdev->cmd_timer); |
3776 | |
3777 | rcu_read_lock(); |
3778 | if (!test_bit(HCI_RESET, &hdev->flags)) { |
3779 | if (ncmd) { |
3780 | cancel_delayed_work(dwork: &hdev->ncmd_timer); |
3781 | atomic_set(v: &hdev->cmd_cnt, i: 1); |
3782 | } else { |
3783 | if (!hci_dev_test_flag(hdev, HCI_CMD_DRAIN_WORKQUEUE)) |
3784 | queue_delayed_work(wq: hdev->workqueue, dwork: &hdev->ncmd_timer, |
3785 | HCI_NCMD_TIMEOUT); |
3786 | } |
3787 | } |
3788 | rcu_read_unlock(); |
3789 | } |
3790 | |
3791 | static 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 | |
3815 | static 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(ba1: &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 | |
3831 | static 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; |
3835 | struct hci_cp_le_set_cig_params *cp; |
3836 | struct hci_conn *conn; |
3837 | u8 status = rp->status; |
3838 | bool pending = false; |
3839 | int i; |
3840 | |
3841 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
3842 | |
3843 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS); |
3844 | if (!rp->status && (!cp || rp->num_handles != cp->num_cis || |
3845 | rp->cig_id != cp->cig_id)) { |
3846 | bt_dev_err(hdev, "unexpected Set CIG Parameters response data" ); |
3847 | status = HCI_ERROR_UNSPECIFIED; |
3848 | } |
3849 | |
3850 | hci_dev_lock(hdev); |
3851 | |
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 | */ |
3858 | if (status) { |
3859 | /* Keep current configuration, fail only the unbound CIS */ |
3860 | hci_unbound_cis_failed(hdev, cig: rp->cig_id, status); |
3861 | goto unlock; |
3862 | } |
3863 | |
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, ba_type: 0, cig: rp->cig_id, |
3873 | id: cp->cis[i].cis_id); |
3874 | if (!conn || !bacmp(ba1: &conn->dst, BDADDR_ANY)) |
3875 | continue; |
3876 | |
3877 | if (conn->state != BT_BOUND && conn->state != BT_CONNECT) |
3878 | continue; |
3879 | |
3880 | if (hci_conn_set_handle(conn, __le16_to_cpu(rp->handle[i]))) |
3881 | continue; |
3882 | |
3883 | if (conn->state == BT_CONNECT) |
3884 | pending = true; |
3885 | } |
3886 | |
3887 | unlock: |
3888 | if (pending) |
3889 | hci_le_create_cis_pending(hdev); |
3890 | |
3891 | hci_dev_unlock(hdev); |
3892 | |
3893 | return rp->status; |
3894 | } |
3895 | |
3896 | static 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, status: 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 */ |
3925 | if (conn->iso_qos.ucast.out.sdu && !conn->iso_qos.ucast.in.sdu) |
3926 | hci_connect_cfm(conn, status: 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, status: rp->status); |
3934 | break; |
3935 | } |
3936 | |
3937 | unlock: |
3938 | hci_dev_unlock(hdev); |
3939 | return rp->status; |
3940 | } |
3941 | |
3942 | static 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 | |
3947 | static 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 | |
3966 | static 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; |
3970 | struct hci_cp_le_set_per_adv_enable *cp; |
3971 | struct adv_info *adv = NULL, *n; |
3972 | u8 per_adv_cnt = 0; |
3973 | |
3974 | bt_dev_dbg(hdev, "status 0x%2.2x" , rp->status); |
3975 | |
3976 | if (rp->status) |
3977 | return rp->status; |
3978 | |
3979 | cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_PER_ADV_ENABLE); |
3980 | if (!cp) |
3981 | return rp->status; |
3982 | |
3983 | hci_dev_lock(hdev); |
3984 | |
3985 | adv = hci_find_adv_instance(hdev, instance: cp->handle); |
3986 | |
3987 | if (cp->enable) { |
3988 | hci_dev_set_flag(hdev, HCI_LE_PER_ADV); |
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 | |
4007 | hci_dev_clear_flag(hdev, HCI_LE_PER_ADV); |
4008 | } |
4009 | |
4010 | unlock: |
4011 | hci_dev_unlock(hdev); |
4012 | |
4013 | return rp->status; |
4014 | } |
4015 | |
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 | |
4030 | static 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)), |
4106 | HCI_CC(HCI_OP_READ_ENC_KEY_SIZE, hci_cc_read_enc_key_size, |
4107 | sizeof(struct hci_rp_read_enc_key_size)), |
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), |
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), |
4194 | HCI_CC(HCI_OP_LE_READ_TRANSMIT_POWER, hci_cc_le_read_transmit_power, |
4195 | sizeof(struct hci_rp_le_read_transmit_power)), |
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)), |
4203 | }; |
4204 | |
4205 | static 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, op: cc->op, len: cc->min_len); |
4225 | if (!data) |
4226 | return HCI_ERROR_UNSPECIFIED; |
4227 | |
4228 | return cc->func(hdev, data, skb); |
4229 | } |
4230 | |
4231 | static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data, |
4232 | struct sk_buff *skb, u16 *opcode, u8 *status, |
4233 | hci_req_complete_t *req_complete, |
4234 | hci_req_complete_skb_t *req_complete_skb) |
4235 | { |
4236 | struct hci_ev_cmd_complete *ev = data; |
4237 | int i; |
4238 | |
4239 | *opcode = __le16_to_cpu(ev->opcode); |
4240 | |
4241 | bt_dev_dbg(hdev, "opcode 0x%4.4x" , *opcode); |
4242 | |
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, cc: &hci_cc_table[i], skb); |
4246 | break; |
4247 | } |
4248 | } |
4249 | |
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 | |
4261 | handle_cmd_cnt_and_timer(hdev, ncmd: ev->ncmd); |
4262 | |
4263 | hci_req_cmd_complete(hdev, opcode: *opcode, status: *status, req_complete, |
4264 | req_complete_skb); |
4265 | |
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 | |
4272 | if (atomic_read(v: &hdev->cmd_cnt) && !skb_queue_empty(list: &hdev->cmd_q)) |
4273 | queue_work(wq: hdev->workqueue, work: &hdev->cmd_work); |
4274 | } |
4275 | |
4276 | static void hci_cs_le_create_cis(struct hci_dev *hdev, u8 status) |
4277 | { |
4278 | struct hci_cp_le_create_cis *cp; |
4279 | bool pending = false; |
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) { |
4302 | if (test_and_clear_bit(nr: HCI_CONN_CREATE_CIS, |
4303 | addr: &conn->flags)) |
4304 | pending = true; |
4305 | conn->state = BT_CLOSED; |
4306 | hci_connect_cfm(conn, status); |
4307 | hci_conn_del(conn); |
4308 | } |
4309 | } |
4310 | |
4311 | if (pending) |
4312 | hci_le_create_cis_pending(hdev); |
4313 | |
4314 | hci_dev_unlock(hdev); |
4315 | } |
4316 | |
4317 | #define HCI_CS(_op, _func) \ |
4318 | { \ |
4319 | .op = _op, \ |
4320 | .func = _func, \ |
4321 | } |
4322 | |
4323 | static 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), |
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), |
4348 | HCI_CS(HCI_OP_LE_CREATE_BIG, hci_cs_le_create_big), |
4349 | }; |
4350 | |
4351 | static void hci_cmd_status_evt(struct hci_dev *hdev, void *data, |
4352 | struct sk_buff *skb, u16 *opcode, u8 *status, |
4353 | hci_req_complete_t *req_complete, |
4354 | hci_req_complete_skb_t *req_complete_skb) |
4355 | { |
4356 | struct hci_ev_cmd_status *ev = data; |
4357 | int i; |
4358 | |
4359 | *opcode = __le16_to_cpu(ev->opcode); |
4360 | *status = ev->status; |
4361 | |
4362 | bt_dev_dbg(hdev, "opcode 0x%4.4x" , *opcode); |
4363 | |
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 | } |
4369 | } |
4370 | |
4371 | handle_cmd_cnt_and_timer(hdev, ncmd: ev->ncmd); |
4372 | |
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 | */ |
4379 | if (ev->status || (hdev->sent_cmd && !hci_skb_event(hdev->sent_cmd))) { |
4380 | hci_req_cmd_complete(hdev, opcode: *opcode, status: ev->status, req_complete, |
4381 | req_complete_skb); |
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 | } |
4387 | } |
4388 | |
4389 | if (atomic_read(v: &hdev->cmd_cnt) && !skb_queue_empty(list: &hdev->cmd_q)) |
4390 | queue_work(wq: hdev->workqueue, work: &hdev->cmd_work); |
4391 | } |
4392 | |
4393 | static void hci_hardware_error_evt(struct hci_dev *hdev, void *data, |
4394 | struct sk_buff *skb) |
4395 | { |
4396 | struct hci_ev_hardware_error *ev = data; |
4397 | |
4398 | bt_dev_dbg(hdev, "code 0x%2.2x" , ev->code); |
4399 | |
4400 | hdev->hw_error_code = ev->code; |
4401 | |
4402 | queue_work(wq: hdev->req_workqueue, work: &hdev->error_reset); |
4403 | } |
4404 | |
4405 | static void hci_role_change_evt(struct hci_dev *hdev, void *data, |
4406 | struct sk_buff *skb) |
4407 | { |
4408 | struct hci_ev_role_change *ev = data; |
4409 | struct hci_conn *conn; |
4410 | |
4411 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
4412 | |
4413 | hci_dev_lock(hdev); |
4414 | |
4415 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
4416 | if (conn) { |
4417 | if (!ev->status) |
4418 | conn->role = ev->role; |
4419 | |
4420 | clear_bit(nr: HCI_CONN_RSWITCH_PEND, addr: &conn->flags); |
4421 | |
4422 | hci_role_switch_cfm(conn, status: ev->status, role: ev->role); |
4423 | } |
4424 | |
4425 | hci_dev_unlock(hdev); |
4426 | } |
4427 | |
4428 | static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data, |
4429 | struct sk_buff *skb) |
4430 | { |
4431 | struct hci_ev_num_comp_pkts *ev = data; |
4432 | int i; |
4433 | |
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); |
4440 | return; |
4441 | } |
4442 | |
4443 | bt_dev_dbg(hdev, "num %d" , ev->num); |
4444 | |
4445 | for (i = 0; i < ev->num; i++) { |
4446 | struct hci_comp_pkts_info *info = &ev->handles[i]; |
4447 | struct hci_conn *conn; |
4448 | __u16 handle, count; |
4449 | |
4450 | handle = __le16_to_cpu(info->handle); |
4451 | count = __le16_to_cpu(info->count); |
4452 | |
4453 | conn = hci_conn_hash_lookup_handle(hdev, handle); |
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 { |
4472 | hdev->acl_cnt += count; |
4473 | if (hdev->acl_cnt > hdev->acl_pkts) |
4474 | hdev->acl_cnt = hdev->acl_pkts; |
4475 | } |
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 | |
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 | |
4500 | default: |
4501 | bt_dev_err(hdev, "unknown type %d conn %p" , |
4502 | conn->type, conn); |
4503 | break; |
4504 | } |
4505 | } |
4506 | |
4507 | queue_work(wq: hdev->workqueue, work: &hdev->tx_work); |
4508 | } |
4509 | |
4510 | static 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) { |
4516 | case HCI_PRIMARY: |
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: |
4524 | bt_dev_err(hdev, "unknown dev_type %d" , hdev->dev_type); |
4525 | break; |
4526 | } |
4527 | |
4528 | return NULL; |
4529 | } |
4530 | |
4531 | static void hci_num_comp_blocks_evt(struct hci_dev *hdev, void *data, |
4532 | struct sk_buff *skb) |
4533 | { |
4534 | struct hci_ev_num_comp_blocks *ev = data; |
4535 | int i; |
4536 | |
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) { |
4542 | bt_dev_err(hdev, "wrong event for mode %d" , |
4543 | hdev->flow_ctl_mode); |
4544 | return; |
4545 | } |
4546 | |
4547 | bt_dev_dbg(hdev, "num_blocks %d num_hndl %d" , ev->num_blocks, |
4548 | ev->num_hndl); |
4549 | |
4550 | for (i = 0; i < ev->num_hndl; i++) { |
4551 | struct hci_comp_blocks_info *info = &ev->handles[i]; |
4552 | struct hci_conn *conn = NULL; |
4553 | __u16 handle, block_count; |
4554 | |
4555 | handle = __le16_to_cpu(info->handle); |
4556 | block_count = __le16_to_cpu(info->blocks); |
4557 | |
4558 | conn = __hci_conn_lookup_handle(hdev, handle); |
4559 | if (!conn) |
4560 | continue; |
4561 | |
4562 | conn->sent -= block_count; |
4563 | |
4564 | switch (conn->type) { |
4565 | case ACL_LINK: |
4566 | case AMP_LINK: |
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: |
4573 | bt_dev_err(hdev, "unknown type %d conn %p" , |
4574 | conn->type, conn); |
4575 | break; |
4576 | } |
4577 | } |
4578 | |
4579 | queue_work(wq: hdev->workqueue, work: &hdev->tx_work); |
4580 | } |
4581 | |
4582 | static void hci_mode_change_evt(struct hci_dev *hdev, void *data, |
4583 | struct sk_buff *skb) |
4584 | { |
4585 | struct hci_ev_mode_change *ev = data; |
4586 | struct hci_conn *conn; |
4587 | |
4588 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
4589 | |
4590 | hci_dev_lock(hdev); |
4591 | |
4592 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
4593 | if (conn) { |
4594 | conn->mode = ev->mode; |
4595 | |
4596 | if (!test_and_clear_bit(nr: HCI_CONN_MODE_CHANGE_PEND, |
4597 | addr: &conn->flags)) { |
4598 | if (conn->mode == HCI_CM_ACTIVE) |
4599 | set_bit(nr: HCI_CONN_POWER_SAVE, addr: &conn->flags); |
4600 | else |
4601 | clear_bit(nr: HCI_CONN_POWER_SAVE, addr: &conn->flags); |
4602 | } |
4603 | |
4604 | if (test_and_clear_bit(nr: HCI_CONN_SCO_SETUP_PEND, addr: &conn->flags)) |
4605 | hci_sco_setup(conn, status: ev->status); |
4606 | } |
4607 | |
4608 | hci_dev_unlock(hdev); |
4609 | } |
4610 | |
4611 | static void hci_pin_code_request_evt(struct hci_dev *hdev, void *data, |
4612 | struct sk_buff *skb) |
4613 | { |
4614 | struct hci_ev_pin_code_req *ev = data; |
4615 | struct hci_conn *conn; |
4616 | |
4617 | bt_dev_dbg(hdev, "" ); |
4618 | |
4619 | hci_dev_lock(hdev); |
4620 | |
4621 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
4622 | if (!conn) |
4623 | goto unlock; |
4624 | |
4625 | if (conn->state == BT_CONNECTED) { |
4626 | hci_conn_hold(conn); |
4627 | conn->disc_timeout = HCI_PAIRING_TIMEOUT; |
4628 | hci_conn_drop(conn); |
4629 | } |
4630 | |
4631 | if (!hci_dev_test_flag(hdev, HCI_BONDABLE) && |
4632 | !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) { |
4633 | hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, |
4634 | plen: sizeof(ev->bdaddr), param: &ev->bdaddr); |
4635 | } else if (hci_dev_test_flag(hdev, HCI_MGMT)) { |
4636 | u8 secure; |
4637 | |
4638 | if (conn->pending_sec_level == BT_SECURITY_HIGH) |
4639 | secure = 1; |
4640 | else |
4641 | secure = 0; |
4642 | |
4643 | mgmt_pin_code_request(hdev, bdaddr: &ev->bdaddr, secure); |
4644 | } |
4645 | |
4646 | unlock: |
4647 | hci_dev_unlock(hdev); |
4648 | } |
4649 | |
4650 | static 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 | |
4682 | static void hci_link_key_request_evt(struct hci_dev *hdev, void *data, |
4683 | struct sk_buff *skb) |
4684 | { |
4685 | struct hci_ev_link_key_req *ev = data; |
4686 | struct hci_cp_link_key_reply cp; |
4687 | struct hci_conn *conn; |
4688 | struct link_key *key; |
4689 | |
4690 | bt_dev_dbg(hdev, "" ); |
4691 | |
4692 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
4693 | return; |
4694 | |
4695 | hci_dev_lock(hdev); |
4696 | |
4697 | key = hci_find_link_key(hdev, bdaddr: &ev->bdaddr); |
4698 | if (!key) { |
4699 | bt_dev_dbg(hdev, "link key not found for %pMR" , &ev->bdaddr); |
4700 | goto not_found; |
4701 | } |
4702 | |
4703 | bt_dev_dbg(hdev, "found key type %u for %pMR" , key->type, &ev->bdaddr); |
4704 | |
4705 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
4706 | if (conn) { |
4707 | clear_bit(nr: HCI_CONN_NEW_LINK_KEY, addr: &conn->flags); |
4708 | |
4709 | if ((key->type == HCI_LK_UNAUTH_COMBINATION_P192 || |
4710 | key->type == HCI_LK_UNAUTH_COMBINATION_P256) && |
4711 | conn->auth_type != 0xff && (conn->auth_type & 0x01)) { |
4712 | bt_dev_dbg(hdev, "ignoring unauthenticated key" ); |
4713 | goto not_found; |
4714 | } |
4715 | |
4716 | if (key->type == HCI_LK_COMBINATION && key->pin_len < 16 && |
4717 | (conn->pending_sec_level == BT_SECURITY_HIGH || |
4718 | conn->pending_sec_level == BT_SECURITY_FIPS)) { |
4719 | bt_dev_dbg(hdev, "ignoring key unauthenticated for high security" ); |
4720 | goto not_found; |
4721 | } |
4722 | |
4723 | conn_set_key(conn, key_type: key->type, pin_len: key->pin_len); |
4724 | } |
4725 | |
4726 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
4727 | memcpy(cp.link_key, key->val, HCI_LINK_KEY_SIZE); |
4728 | |
4729 | hci_send_cmd(hdev, HCI_OP_LINK_KEY_REPLY, plen: sizeof(cp), param: &cp); |
4730 | |
4731 | hci_dev_unlock(hdev); |
4732 | |
4733 | return; |
4734 | |
4735 | not_found: |
4736 | hci_send_cmd(hdev, HCI_OP_LINK_KEY_NEG_REPLY, plen: 6, param: &ev->bdaddr); |
4737 | hci_dev_unlock(hdev); |
4738 | } |
4739 | |
4740 | static void hci_link_key_notify_evt(struct hci_dev *hdev, void *data, |
4741 | struct sk_buff *skb) |
4742 | { |
4743 | struct hci_ev_link_key_notify *ev = data; |
4744 | struct hci_conn *conn; |
4745 | struct link_key *key; |
4746 | bool persistent; |
4747 | u8 pin_len = 0; |
4748 | |
4749 | bt_dev_dbg(hdev, "" ); |
4750 | |
4751 | hci_dev_lock(hdev); |
4752 | |
4753 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
4754 | if (!conn) |
4755 | goto unlock; |
4756 | |
4757 | /* Ignore NULL link key against CVE-2020-26555 */ |
4758 | if (!crypto_memneq(a: ev->link_key, ZERO_KEY, HCI_LINK_KEY_SIZE)) { |
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 | |
4766 | hci_conn_hold(conn); |
4767 | conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
4768 | hci_conn_drop(conn); |
4769 | |
4770 | set_bit(nr: HCI_CONN_NEW_LINK_KEY, addr: &conn->flags); |
4771 | conn_set_key(conn, key_type: ev->key_type, pin_len: conn->pin_length); |
4772 | |
4773 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
4774 | goto unlock; |
4775 | |
4776 | key = hci_add_link_key(hdev, conn, bdaddr: &ev->bdaddr, val: ev->link_key, |
4777 | type: ev->key_type, pin_len, persistent: &persistent); |
4778 | if (!key) |
4779 | goto unlock; |
4780 | |
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->type, pin_len: key->pin_len); |
4786 | |
4787 | mgmt_new_link_key(hdev, key, persistent); |
4788 | |
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 && |
4795 | !hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS)) { |
4796 | list_del_rcu(entry: &key->list); |
4797 | kfree_rcu(key, rcu); |
4798 | goto unlock; |
4799 | } |
4800 | |
4801 | if (persistent) |
4802 | clear_bit(nr: HCI_CONN_FLUSH_KEY, addr: &conn->flags); |
4803 | else |
4804 | set_bit(nr: HCI_CONN_FLUSH_KEY, addr: &conn->flags); |
4805 | |
4806 | unlock: |
4807 | hci_dev_unlock(hdev); |
4808 | } |
4809 | |
4810 | static void hci_clock_offset_evt(struct hci_dev *hdev, void *data, |
4811 | struct sk_buff *skb) |
4812 | { |
4813 | struct hci_ev_clock_offset *ev = data; |
4814 | struct hci_conn *conn; |
4815 | |
4816 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
4817 | |
4818 | hci_dev_lock(hdev); |
4819 | |
4820 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
4821 | if (conn && !ev->status) { |
4822 | struct inquiry_entry *ie; |
4823 | |
4824 | ie = hci_inquiry_cache_lookup(hdev, bdaddr: &conn->dst); |
4825 | if (ie) { |
4826 | ie->data.clock_offset = ev->clock_offset; |
4827 | ie->timestamp = jiffies; |
4828 | } |
4829 | } |
4830 | |
4831 | hci_dev_unlock(hdev); |
4832 | } |
4833 | |
4834 | static void hci_pkt_type_change_evt(struct hci_dev *hdev, void *data, |
4835 | struct sk_buff *skb) |
4836 | { |
4837 | struct hci_ev_pkt_type_change *ev = data; |
4838 | struct hci_conn *conn; |
4839 | |
4840 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
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 | |
4851 | static void hci_pscan_rep_mode_evt(struct hci_dev *hdev, void *data, |
4852 | struct sk_buff *skb) |
4853 | { |
4854 | struct hci_ev_pscan_rep_mode *ev = data; |
4855 | struct inquiry_entry *ie; |
4856 | |
4857 | bt_dev_dbg(hdev, "" ); |
4858 | |
4859 | hci_dev_lock(hdev); |
4860 | |
4861 | ie = hci_inquiry_cache_lookup(hdev, bdaddr: &ev->bdaddr); |
4862 | if (ie) { |
4863 | ie->data.pscan_rep_mode = ev->pscan_rep_mode; |
4864 | ie->timestamp = jiffies; |
4865 | } |
4866 | |
4867 | hci_dev_unlock(hdev); |
4868 | } |
4869 | |
4870 | static void (struct hci_dev *hdev, void *edata, |
4871 | struct sk_buff *skb) |
4872 | { |
4873 | struct hci_ev_inquiry_result_rssi *ev = edata; |
4874 | struct inquiry_data data; |
4875 | int i; |
4876 | |
4877 | bt_dev_dbg(hdev, "num_rsp %d" , ev->num); |
4878 | |
4879 | if (!ev->num) |
4880 | return; |
4881 | |
4882 | if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) |
4883 | return; |
4884 | |
4885 | hci_dev_lock(hdev); |
4886 | |
4887 | if (skb->len == array_size(ev->num, |
4888 | sizeof(struct inquiry_info_rssi_pscan))) { |
4889 | struct inquiry_info_rssi_pscan *info; |
4890 | |
4891 | for (i = 0; i < ev->num; i++) { |
4892 | u32 flags; |
4893 | |
4894 | info = hci_ev_skb_pull(hdev, skb, |
4895 | HCI_EV_INQUIRY_RESULT_WITH_RSSI, |
4896 | len: sizeof(*info)); |
4897 | if (!info) { |
4898 | bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x" , |
4899 | HCI_EV_INQUIRY_RESULT_WITH_RSSI); |
4900 | goto unlock; |
4901 | } |
4902 | |
4903 | bacpy(dst: &data.bdaddr, src: &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; |
4910 | data.ssp_mode = 0x00; |
4911 | |
4912 | flags = hci_inquiry_cache_update(hdev, data: &data, name_known: false); |
4913 | |
4914 | mgmt_device_found(hdev, bdaddr: &info->bdaddr, ACL_LINK, addr_type: 0x00, |
4915 | dev_class: info->dev_class, rssi: info->rssi, |
4916 | flags, NULL, eir_len: 0, NULL, scan_rsp_len: 0, instant: 0); |
4917 | } |
4918 | } else if (skb->len == array_size(ev->num, |
4919 | sizeof(struct inquiry_info_rssi))) { |
4920 | struct inquiry_info_rssi *info; |
4921 | |
4922 | for (i = 0; i < ev->num; i++) { |
4923 | u32 flags; |
4924 | |
4925 | info = hci_ev_skb_pull(hdev, skb, |
4926 | HCI_EV_INQUIRY_RESULT_WITH_RSSI, |
4927 | len: sizeof(*info)); |
4928 | if (!info) { |
4929 | bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x" , |
4930 | HCI_EV_INQUIRY_RESULT_WITH_RSSI); |
4931 | goto unlock; |
4932 | } |
4933 | |
4934 | bacpy(dst: &data.bdaddr, src: &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; |
4941 | data.ssp_mode = 0x00; |
4942 | |
4943 | flags = hci_inquiry_cache_update(hdev, data: &data, name_known: false); |
4944 | |
4945 | mgmt_device_found(hdev, bdaddr: &info->bdaddr, ACL_LINK, addr_type: 0x00, |
4946 | dev_class: info->dev_class, rssi: info->rssi, |
4947 | flags, NULL, eir_len: 0, NULL, scan_rsp_len: 0, instant: 0); |
4948 | } |
4949 | } else { |
4950 | bt_dev_err(hdev, "Malformed HCI Event: 0x%2.2x" , |
4951 | HCI_EV_INQUIRY_RESULT_WITH_RSSI); |
4952 | } |
4953 | unlock: |
4954 | hci_dev_unlock(hdev); |
4955 | } |
4956 | |
4957 | static void hci_remote_ext_features_evt(struct hci_dev *hdev, void *data, |
4958 | struct sk_buff *skb) |
4959 | { |
4960 | struct hci_ev_remote_ext_features *ev = data; |
4961 | struct hci_conn *conn; |
4962 | |
4963 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
4964 | |
4965 | hci_dev_lock(hdev); |
4966 | |
4967 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
4968 | if (!conn) |
4969 | goto unlock; |
4970 | |
4971 | if (ev->page < HCI_MAX_PAGES) |
4972 | memcpy(conn->features[ev->page], ev->features, 8); |
4973 | |
4974 | if (!ev->status && ev->page == 0x01) { |
4975 | struct inquiry_entry *ie; |
4976 | |
4977 | ie = hci_inquiry_cache_lookup(hdev, bdaddr: &conn->dst); |
4978 | if (ie) |
4979 | ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); |
4980 | |
4981 | if (ev->features[0] & LMP_HOST_SSP) { |
4982 | set_bit(nr: HCI_CONN_SSP_ENABLED, addr: &conn->flags); |
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(nr: HCI_CONN_SSP_ENABLED, addr: &conn->flags); |
4993 | } |
4994 | |
4995 | if (ev->features[0] & LMP_HOST_SC) |
4996 | set_bit(nr: HCI_CONN_SC_ENABLED, addr: &conn->flags); |
4997 | } |
4998 | |
4999 | if (conn->state != BT_CONFIG) |
5000 | goto unlock; |
5001 | |
5002 | if (!ev->status && !test_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) { |
5003 | struct hci_cp_remote_name_req cp; |
5004 | memset(&cp, 0, sizeof(cp)); |
5005 | bacpy(dst: &cp.bdaddr, src: &conn->dst); |
5006 | cp.pscan_rep_mode = 0x02; |
5007 | hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ, plen: sizeof(cp), param: &cp); |
5008 | } else if (!test_and_set_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags)) |
5009 | mgmt_device_connected(hdev, conn, NULL, name_len: 0); |
5010 | |
5011 | if (!hci_outgoing_auth_needed(hdev, conn)) { |
5012 | conn->state = BT_CONNECTED; |
5013 | hci_connect_cfm(conn, status: ev->status); |
5014 | hci_conn_drop(conn); |
5015 | } |
5016 | |
5017 | unlock: |
5018 | hci_dev_unlock(hdev); |
5019 | } |
5020 | |
5021 | static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data, |
5022 | struct sk_buff *skb) |
5023 | { |
5024 | struct hci_ev_sync_conn_complete *ev = data; |
5025 | struct hci_conn *conn; |
5026 | u8 status = ev->status; |
5027 | |
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 | |
5041 | bt_dev_dbg(hdev, "status 0x%2.2x" , status); |
5042 | |
5043 | hci_dev_lock(hdev); |
5044 | |
5045 | conn = hci_conn_hash_lookup_ba(hdev, type: ev->link_type, ba: &ev->bdaddr); |
5046 | if (!conn) { |
5047 | if (ev->link_type == ESCO_LINK) |
5048 | goto unlock; |
5049 | |
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 | */ |
5059 | conn = hci_conn_hash_lookup_ba(hdev, ESCO_LINK, ba: &ev->bdaddr); |
5060 | if (!conn) |
5061 | goto unlock; |
5062 | } |
5063 | |
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 | */ |
5070 | if (!HCI_CONN_HANDLE_UNSET(conn->handle)) { |
5071 | bt_dev_err(hdev, "Ignoring HCI_Sync_Conn_Complete event for existing connection" ); |
5072 | goto unlock; |
5073 | } |
5074 | |
5075 | switch (status) { |
5076 | case 0x00: |
5077 | status = hci_conn_set_handle(conn, __le16_to_cpu(ev->handle)); |
5078 | if (status) { |
5079 | conn->state = BT_CLOSED; |
5080 | break; |
5081 | } |
5082 | |
5083 | conn->state = BT_CONNECTED; |
5084 | conn->type = ev->link_type; |
5085 | |
5086 | hci_debugfs_create_conn(conn); |
5087 | hci_conn_add_sysfs(conn); |
5088 | break; |
5089 | |
5090 | case 0x10: /* Connection Accept Timeout */ |
5091 | case 0x0d: /* Connection Rejected due to Limited Resources */ |
5092 | case 0x11: /* Unsupported Feature or Parameter Value */ |
5093 | case 0x1c: /* SCO interval rejected */ |
5094 | case 0x1a: /* Unsupported Remote Feature */ |
5095 | case 0x1e: /* Invalid LMP Parameters */ |
5096 | case 0x1f: /* Unspecified error */ |
5097 | case 0x20: /* Unsupported LMP Parameter value */ |
5098 | if (conn->out) { |
5099 | conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) | |
5100 | (hdev->esco_type & EDR_ESCO_MASK); |
5101 | if (hci_setup_sync(conn, handle: conn->parent->handle)) |
5102 | goto unlock; |
5103 | } |
5104 | fallthrough; |
5105 | |
5106 | default: |
5107 | conn->state = BT_CLOSED; |
5108 | break; |
5109 | } |
5110 | |
5111 | bt_dev_dbg(hdev, "SCO connected with air mode: %02x" , ev->air_mode); |
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 | */ |
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 | } |
5124 | } |
5125 | |
5126 | hci_connect_cfm(conn, status); |
5127 | if (status) |
5128 | hci_conn_del(conn); |
5129 | |
5130 | unlock: |
5131 | hci_dev_unlock(hdev); |
5132 | } |
5133 | |
5134 | static 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 | |
5151 | static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, void *edata, |
5152 | struct sk_buff *skb) |
5153 | { |
5154 | struct hci_ev_ext_inquiry_result *ev = edata; |
5155 | struct inquiry_data data; |
5156 | size_t eir_len; |
5157 | int i; |
5158 | |
5159 | if (!hci_ev_skb_pull(hdev, skb, HCI_EV_EXTENDED_INQUIRY_RESULT, |
5160 | flex_array_size(ev, info, ev->num))) |
5161 | return; |
5162 | |
5163 | bt_dev_dbg(hdev, "num %d" , ev->num); |
5164 | |
5165 | if (!ev->num) |
5166 | return; |
5167 | |
5168 | if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) |
5169 | return; |
5170 | |
5171 | hci_dev_lock(hdev); |
5172 | |
5173 | for (i = 0; i < ev->num; i++) { |
5174 | struct extended_inquiry_info *info = &ev->info[i]; |
5175 | u32 flags; |
5176 | bool name_known; |
5177 | |
5178 | bacpy(dst: &data.bdaddr, src: &info->bdaddr); |
5179 | data.pscan_rep_mode = info->pscan_rep_mode; |
5180 | data.pscan_period_mode = info->pscan_period_mode; |
5181 | data.pscan_mode = 0x00; |
5182 | memcpy(data.dev_class, info->dev_class, 3); |
5183 | data.clock_offset = info->clock_offset; |
5184 | data.rssi = info->rssi; |
5185 | data.ssp_mode = 0x01; |
5186 | |
5187 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
5188 | name_known = eir_get_data(eir: info->data, |
5189 | eir_len: sizeof(info->data), |
5190 | EIR_NAME_COMPLETE, NULL); |
5191 | else |
5192 | name_known = true; |
5193 | |
5194 | flags = hci_inquiry_cache_update(hdev, data: &data, name_known); |
5195 | |
5196 | eir_len = eir_get_length(eir: info->data, eir_len: sizeof(info->data)); |
5197 | |
5198 | mgmt_device_found(hdev, bdaddr: &info->bdaddr, ACL_LINK, addr_type: 0x00, |
5199 | dev_class: info->dev_class, rssi: info->rssi, |
5200 | flags, eir: info->data, eir_len, NULL, scan_rsp_len: 0, instant: 0); |
5201 | } |
5202 | |
5203 | hci_dev_unlock(hdev); |
5204 | } |
5205 | |
5206 | static void hci_key_refresh_complete_evt(struct hci_dev *hdev, void *data, |
5207 | struct sk_buff *skb) |
5208 | { |
5209 | struct hci_ev_key_refresh_complete *ev = data; |
5210 | struct hci_conn *conn; |
5211 | |
5212 | bt_dev_dbg(hdev, "status 0x%2.2x handle 0x%4.4x" , ev->status, |
5213 | __le16_to_cpu(ev->handle)); |
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 | |
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 | |
5227 | if (!ev->status) |
5228 | conn->sec_level = conn->pending_sec_level; |
5229 | |
5230 | clear_bit(nr: HCI_CONN_ENCRYPT_PEND, addr: &conn->flags); |
5231 | |
5232 | if (ev->status && conn->state == BT_CONNECTED) { |
5233 | hci_disconnect(conn, HCI_ERROR_AUTH_FAILURE); |
5234 | hci_conn_drop(conn); |
5235 | goto unlock; |
5236 | } |
5237 | |
5238 | if (conn->state == BT_CONFIG) { |
5239 | if (!ev->status) |
5240 | conn->state = BT_CONNECTED; |
5241 | |
5242 | hci_connect_cfm(conn, status: ev->status); |
5243 | hci_conn_drop(conn); |
5244 | } else { |
5245 | hci_auth_cfm(conn, status: ev->status); |
5246 | |
5247 | hci_conn_hold(conn); |
5248 | conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
5249 | hci_conn_drop(conn); |
5250 | } |
5251 | |
5252 | unlock: |
5253 | hci_dev_unlock(hdev); |
5254 | } |
5255 | |
5256 | static u8 hci_get_auth_req(struct hci_conn *conn) |
5257 | { |
5258 | /* If remote requests no-bonding follow that lead */ |
5259 | if (conn->remote_auth == HCI_AT_NO_BONDING || |
5260 | conn->remote_auth == HCI_AT_NO_BONDING_MITM) |
5261 | return conn->remote_auth | (conn->auth_type & 0x01); |
5262 | |
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 | |
5270 | /* No MITM protection possible so ignore remote requirement */ |
5271 | return (conn->remote_auth & ~0x01) | (conn->auth_type & 0x01); |
5272 | } |
5273 | |
5274 | static 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, bdaddr: &conn->dst, BDADDR_BREDR); |
5280 | if (!data) |
5281 | return 0x00; |
5282 | |
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; |
5292 | |
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. |
5297 | */ |
5298 | if (!crypto_memneq(a: data->rand256, ZERO_KEY, size: 16) || |
5299 | !crypto_memneq(a: data->hash256, ZERO_KEY, size: 16)) |
5300 | return 0x00; |
5301 | |
5302 | return 0x02; |
5303 | } |
5304 | |
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 | */ |
5309 | if (!crypto_memneq(a: data->rand192, ZERO_KEY, size: 16) || |
5310 | !crypto_memneq(a: data->hash192, ZERO_KEY, size: 16)) |
5311 | return 0x00; |
5312 | |
5313 | return 0x01; |
5314 | } |
5315 | |
5316 | static void hci_io_capa_request_evt(struct hci_dev *hdev, void *data, |
5317 | struct sk_buff *skb) |
5318 | { |
5319 | struct hci_ev_io_capa_request *ev = data; |
5320 | struct hci_conn *conn; |
5321 | |
5322 | bt_dev_dbg(hdev, "" ); |
5323 | |
5324 | hci_dev_lock(hdev); |
5325 | |
5326 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
5327 | if (!conn || !hci_conn_ssp_enabled(conn)) |
5328 | goto unlock; |
5329 | |
5330 | hci_conn_hold(conn); |
5331 | |
5332 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
5333 | goto unlock; |
5334 | |
5335 | /* Allow pairing if we're pairable, the initiators of the |
5336 | * pairing or if the remote is not requesting bonding. |
5337 | */ |
5338 | if (hci_dev_test_flag(hdev, HCI_BONDABLE) || |
5339 | test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) || |
5340 | (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) { |
5341 | struct hci_cp_io_capability_reply cp; |
5342 | |
5343 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
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) ? |
5347 | HCI_IO_DISPLAY_YESNO : conn->io_capability; |
5348 | |
5349 | /* If we are initiators, there is no remote information yet */ |
5350 | if (conn->remote_auth == 0xff) { |
5351 | /* Request MITM protection if our IO caps allow it |
5352 | * except for the no-bonding case. |
5353 | */ |
5354 | if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && |
5355 | conn->auth_type != HCI_AT_NO_BONDING) |
5356 | conn->auth_type |= 0x01; |
5357 | } else { |
5358 | conn->auth_type = hci_get_auth_req(conn); |
5359 | } |
5360 | |
5361 | /* If we're not bondable, force one of the non-bondable |
5362 | * authentication requirement values. |
5363 | */ |
5364 | if (!hci_dev_test_flag(hdev, HCI_BONDABLE)) |
5365 | conn->auth_type &= HCI_AT_NO_BONDING_MITM; |
5366 | |
5367 | cp.authentication = conn->auth_type; |
5368 | cp.oob_data = bredr_oob_data_present(conn); |
5369 | |
5370 | hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_REPLY, |
5371 | plen: sizeof(cp), param: &cp); |
5372 | } else { |
5373 | struct hci_cp_io_capability_neg_reply cp; |
5374 | |
5375 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
5376 | cp.reason = HCI_ERROR_PAIRING_NOT_ALLOWED; |
5377 | |
5378 | hci_send_cmd(hdev, HCI_OP_IO_CAPABILITY_NEG_REPLY, |
5379 | plen: sizeof(cp), param: &cp); |
5380 | } |
5381 | |
5382 | unlock: |
5383 | hci_dev_unlock(hdev); |
5384 | } |
5385 | |
5386 | static void hci_io_capa_reply_evt(struct hci_dev *hdev, void *data, |
5387 | struct sk_buff *skb) |
5388 | { |
5389 | struct hci_ev_io_capa_reply *ev = data; |
5390 | struct hci_conn *conn; |
5391 | |
5392 | bt_dev_dbg(hdev, "" ); |
5393 | |
5394 | hci_dev_lock(hdev); |
5395 | |
5396 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
5397 | if (!conn) |
5398 | goto unlock; |
5399 | |
5400 | conn->remote_cap = ev->capability; |
5401 | conn->remote_auth = ev->authentication; |
5402 | |
5403 | unlock: |
5404 | hci_dev_unlock(hdev); |
5405 | } |
5406 | |
5407 | static void hci_user_confirm_request_evt(struct hci_dev *hdev, void *data, |
5408 | struct sk_buff *skb) |
5409 | { |
5410 | struct hci_ev_user_confirm_req *ev = data; |
5411 | int loc_mitm, rem_mitm, confirm_hint = 0; |
5412 | struct hci_conn *conn; |
5413 | |
5414 | bt_dev_dbg(hdev, "" ); |
5415 | |
5416 | hci_dev_lock(hdev); |
5417 | |
5418 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
5419 | goto unlock; |
5420 | |
5421 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &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 |
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. |
5432 | */ |
5433 | if (conn->pending_sec_level > BT_SECURITY_MEDIUM && |
5434 | conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) { |
5435 | bt_dev_dbg(hdev, "Rejecting request: remote device can't provide MITM" ); |
5436 | hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY, |
5437 | plen: sizeof(ev->bdaddr), param: &ev->bdaddr); |
5438 | goto unlock; |
5439 | } |
5440 | |
5441 | /* If no side requires MITM protection; auto-accept */ |
5442 | if ((!loc_mitm || conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) && |
5443 | (!rem_mitm || conn->io_capability == HCI_IO_NO_INPUT_OUTPUT)) { |
5444 | |
5445 | /* If we're not the initiators request authorization to |
5446 | * proceed from user space (mgmt_user_confirm with |
5447 | * confirm_hint set to 1). The exception is if neither |
5448 | * side had MITM or if the local IO capability is |
5449 | * NoInputNoOutput, in which case we do auto-accept |
5450 | */ |
5451 | if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && |
5452 | conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && |
5453 | (loc_mitm || rem_mitm)) { |
5454 | bt_dev_dbg(hdev, "Confirming auto-accept as acceptor" ); |
5455 | confirm_hint = 1; |
5456 | goto confirm; |
5457 | } |
5458 | |
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, bdaddr: &ev->bdaddr)) { |
5464 | bt_dev_dbg(hdev, "Local host already has link key" ); |
5465 | confirm_hint = 1; |
5466 | goto confirm; |
5467 | } |
5468 | |
5469 | BT_DBG("Auto-accept of user confirmation with %ums delay" , |
5470 | hdev->auto_accept_delay); |
5471 | |
5472 | if (hdev->auto_accept_delay > 0) { |
5473 | int delay = msecs_to_jiffies(m: hdev->auto_accept_delay); |
5474 | queue_delayed_work(wq: conn->hdev->workqueue, |
5475 | dwork: &conn->auto_accept_work, delay); |
5476 | goto unlock; |
5477 | } |
5478 | |
5479 | hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, |
5480 | plen: sizeof(ev->bdaddr), param: &ev->bdaddr); |
5481 | goto unlock; |
5482 | } |
5483 | |
5484 | confirm: |
5485 | mgmt_user_confirm_request(hdev, bdaddr: &ev->bdaddr, ACL_LINK, addr_type: 0, |
5486 | le32_to_cpu(ev->passkey), confirm_hint); |
5487 | |
5488 | unlock: |
5489 | hci_dev_unlock(hdev); |
5490 | } |
5491 | |
5492 | static void hci_user_passkey_request_evt(struct hci_dev *hdev, void *data, |
5493 | struct sk_buff *skb) |
5494 | { |
5495 | struct hci_ev_user_passkey_req *ev = data; |
5496 | |
5497 | bt_dev_dbg(hdev, "" ); |
5498 | |
5499 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
5500 | mgmt_user_passkey_request(hdev, bdaddr: &ev->bdaddr, ACL_LINK, addr_type: 0); |
5501 | } |
5502 | |
5503 | static void hci_user_passkey_notify_evt(struct hci_dev *hdev, void *data, |
5504 | struct sk_buff *skb) |
5505 | { |
5506 | struct hci_ev_user_passkey_notify *ev = data; |
5507 | struct hci_conn *conn; |
5508 | |
5509 | bt_dev_dbg(hdev, "" ); |
5510 | |
5511 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
5512 | if (!conn) |
5513 | return; |
5514 | |
5515 | conn->passkey_notify = __le32_to_cpu(ev->passkey); |
5516 | conn->passkey_entered = 0; |
5517 | |
5518 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
5519 | mgmt_user_passkey_notify(hdev, bdaddr: &conn->dst, link_type: conn->type, |
5520 | addr_type: conn->dst_type, passkey: conn->passkey_notify, |
5521 | entered: conn->passkey_entered); |
5522 | } |
5523 | |
5524 | static void hci_keypress_notify_evt(struct hci_dev *hdev, void *data, |
5525 | struct sk_buff *skb) |
5526 | { |
5527 | struct hci_ev_keypress_notify *ev = data; |
5528 | struct hci_conn *conn; |
5529 | |
5530 | bt_dev_dbg(hdev, "" ); |
5531 | |
5532 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &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 | |
5557 | if (hci_dev_test_flag(hdev, HCI_MGMT)) |
5558 | mgmt_user_passkey_notify(hdev, bdaddr: &conn->dst, link_type: conn->type, |
5559 | addr_type: conn->dst_type, passkey: conn->passkey_notify, |
5560 | entered: conn->passkey_entered); |
5561 | } |
5562 | |
5563 | static void hci_simple_pair_complete_evt(struct hci_dev *hdev, void *data, |
5564 | struct sk_buff *skb) |
5565 | { |
5566 | struct hci_ev_simple_pair_complete *ev = data; |
5567 | struct hci_conn *conn; |
5568 | |
5569 | bt_dev_dbg(hdev, "" ); |
5570 | |
5571 | hci_dev_lock(hdev); |
5572 | |
5573 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
5574 | if (!conn || !hci_conn_ssp_enabled(conn)) |
5575 | goto unlock; |
5576 | |
5577 | /* Reset the authentication requirement to unknown */ |
5578 | conn->remote_auth = 0xff; |
5579 | |
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 */ |
5585 | if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && ev->status) |
5586 | mgmt_auth_failed(conn, status: ev->status); |
5587 | |
5588 | hci_conn_drop(conn); |
5589 | |
5590 | unlock: |
5591 | hci_dev_unlock(hdev); |
5592 | } |
5593 | |
5594 | static void hci_remote_host_features_evt(struct hci_dev *hdev, void *data, |
5595 | struct sk_buff *skb) |
5596 | { |
5597 | struct hci_ev_remote_host_features *ev = data; |
5598 | struct inquiry_entry *ie; |
5599 | struct hci_conn *conn; |
5600 | |
5601 | bt_dev_dbg(hdev, "" ); |
5602 | |
5603 | hci_dev_lock(hdev); |
5604 | |
5605 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, ba: &ev->bdaddr); |
5606 | if (conn) |
5607 | memcpy(conn->features[1], ev->features, 8); |
5608 | |
5609 | ie = hci_inquiry_cache_lookup(hdev, bdaddr: &ev->bdaddr); |
5610 | if (ie) |
5611 | ie->data.ssp_mode = (ev->features[0] & LMP_HOST_SSP); |
5612 | |
5613 | hci_dev_unlock(hdev); |
5614 | } |
5615 | |
5616 | static void hci_remote_oob_data_request_evt(struct hci_dev *hdev, void *edata, |
5617 | struct sk_buff *skb) |
5618 | { |
5619 | struct hci_ev_remote_oob_data_request *ev = edata; |
5620 | struct oob_data *data; |
5621 | |
5622 | bt_dev_dbg(hdev, "" ); |
5623 | |
5624 | hci_dev_lock(hdev); |
5625 | |
5626 | if (!hci_dev_test_flag(hdev, HCI_MGMT)) |
5627 | goto unlock; |
5628 | |
5629 | data = hci_find_remote_oob_data(hdev, bdaddr: &ev->bdaddr, BDADDR_BREDR); |
5630 | if (!data) { |
5631 | struct hci_cp_remote_oob_data_neg_reply cp; |
5632 | |
5633 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
5634 | hci_send_cmd(hdev, HCI_OP_REMOTE_OOB_DATA_NEG_REPLY, |
5635 | plen: sizeof(cp), param: &cp); |
5636 | goto unlock; |
5637 | } |
5638 | |
5639 | if (bredr_sc_enabled(hdev)) { |
5640 | struct hci_cp_remote_oob_ext_data_reply cp; |
5641 | |
5642 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
5643 | if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) { |
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)); |
5649 | } |
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 | plen: sizeof(cp), param: &cp); |
5655 | } else { |
5656 | struct hci_cp_remote_oob_data_reply cp; |
5657 | |
5658 | bacpy(dst: &cp.bdaddr, src: &ev->bdaddr); |
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, |
5663 | plen: sizeof(cp), param: &cp); |
5664 | } |
5665 | |
5666 | unlock: |
5667 | hci_dev_unlock(hdev); |
5668 | } |
5669 | |
5670 | #if IS_ENABLED(CONFIG_BT_HS) |
5671 | static void hci_chan_selected_evt(struct hci_dev *hdev, void *data, |
5672 | struct sk_buff *skb) |
5673 | { |
5674 | struct hci_ev_channel_selected *ev = data; |
5675 | struct hci_conn *hcon; |
5676 | |
5677 | bt_dev_dbg(hdev, "handle 0x%2.2x" , ev->phy_handle); |
5678 | |
5679 | hcon = hci_conn_hash_lookup_handle(hdev, handle: ev->phy_handle); |
5680 | if (!hcon) |
5681 | return; |
5682 | |
5683 | amp_read_loc_assoc_final_data(hdev, hcon); |
5684 | } |
5685 | |
5686 | static void hci_phy_link_complete_evt(struct hci_dev *hdev, void *data, |
5687 | struct sk_buff *skb) |
5688 | { |
5689 | struct hci_ev_phy_link_complete *ev = data; |
5690 | struct hci_conn *hcon, *bredr_hcon; |
5691 | |
5692 | bt_dev_dbg(hdev, "handle 0x%2.2x status 0x%2.2x" , ev->phy_handle, |
5693 | ev->status); |
5694 | |
5695 | hci_dev_lock(hdev); |
5696 | |
5697 | hcon = hci_conn_hash_lookup_handle(hdev, handle: ev->phy_handle); |
5698 | if (!hcon) |
5699 | goto unlock; |
5700 | |
5701 | if (!hcon->amp_mgr) |
5702 | goto unlock; |
5703 | |
5704 | if (ev->status) { |
5705 | hci_conn_del(conn: hcon); |
5706 | goto unlock; |
5707 | } |
5708 | |
5709 | bredr_hcon = hcon->amp_mgr->l2cap_conn->hcon; |
5710 | |
5711 | hcon->state = BT_CONNECTED; |
5712 | bacpy(dst: &hcon->dst, src: &bredr_hcon->dst); |
5713 | |
5714 | hci_conn_hold(conn: hcon); |
5715 | hcon->disc_timeout = HCI_DISCONN_TIMEOUT; |
5716 | hci_conn_drop(conn: hcon); |
5717 | |
5718 | hci_debugfs_create_conn(conn: hcon); |
5719 | hci_conn_add_sysfs(conn: hcon); |
5720 | |
5721 | amp_physical_cfm(bredr_hcon, hs_hcon: hcon); |
5722 | |
5723 | unlock: |
5724 | hci_dev_unlock(hdev); |
5725 | } |
5726 | |
5727 | static void hci_loglink_complete_evt(struct hci_dev *hdev, void *data, |
5728 | struct sk_buff *skb) |
5729 | { |
5730 | struct hci_ev_logical_link_complete *ev = data; |
5731 | struct hci_conn *hcon; |
5732 | struct hci_chan *hchan; |
5733 | struct amp_mgr *mgr; |
5734 | |
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); |
5737 | |
5738 | hcon = hci_conn_hash_lookup_handle(hdev, handle: ev->phy_handle); |
5739 | if (!hcon) |
5740 | return; |
5741 | |
5742 | /* Create AMP hchan */ |
5743 | hchan = hci_chan_create(conn: hcon); |
5744 | if (!hchan) |
5745 | return; |
5746 | |
5747 | hchan->handle = le16_to_cpu(ev->handle); |
5748 | hchan->amp = true; |
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(chan: bredr_chan); |
5757 | |
5758 | bredr_chan->conn->mtu = hdev->block_mtu; |
5759 | l2cap_logical_cfm(chan: bredr_chan, hchan, status: 0); |
5760 | hci_conn_hold(conn: hcon); |
5761 | |
5762 | l2cap_chan_unlock(chan: bredr_chan); |
5763 | } |
5764 | } |
5765 | |
5766 | static void hci_disconn_loglink_complete_evt(struct hci_dev *hdev, void *data, |
5767 | struct sk_buff *skb) |
5768 | { |
5769 | struct hci_ev_disconn_logical_link_complete *ev = data; |
5770 | struct hci_chan *hchan; |
5771 | |
5772 | bt_dev_dbg(hdev, "handle 0x%4.4x status 0x%2.2x" , |
5773 | le16_to_cpu(ev->handle), ev->status); |
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)); |
5781 | if (!hchan || !hchan->amp) |
5782 | goto unlock; |
5783 | |
5784 | amp_destroy_logical_link(hchan, reason: ev->reason); |
5785 | |
5786 | unlock: |
5787 | hci_dev_unlock(hdev); |
5788 | } |
5789 | |
5790 | static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data, |
5791 | struct sk_buff *skb) |
5792 | { |
5793 | struct hci_ev_disconn_phy_link_complete *ev = data; |
5794 | struct hci_conn *hcon; |
5795 | |
5796 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
5797 | |
5798 | if (ev->status) |
5799 | return; |
5800 | |
5801 | hci_dev_lock(hdev); |
5802 | |
5803 | hcon = hci_conn_hash_lookup_handle(hdev, handle: ev->phy_handle); |
5804 | if (hcon && hcon->type == AMP_LINK) { |
5805 | hcon->state = BT_CLOSED; |
5806 | hci_disconn_cfm(conn: hcon, reason: ev->reason); |
5807 | hci_conn_del(conn: hcon); |
5808 | } |
5809 | |
5810 | hci_dev_unlock(hdev); |
5811 | } |
5812 | #endif |
5813 | |
5814 | static 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(dst: &conn->resp_addr, src: 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(ba1: local_rpa, BDADDR_ANY)) { |
5826 | conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
5827 | bacpy(dst: &conn->init_addr, src: local_rpa); |
5828 | } else if (hci_dev_test_flag(conn->hdev, HCI_PRIVACY)) { |
5829 | conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
5830 | bacpy(dst: &conn->init_addr, src: &conn->hdev->rpa); |
5831 | } else { |
5832 | hci_copy_identity_address(hdev: conn->hdev, bdaddr: &conn->init_addr, |
5833 | bdaddr_type: &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(ba1: local_rpa, BDADDR_ANY)) { |
5841 | conn->resp_addr_type = ADDR_LE_DEV_RANDOM; |
5842 | bacpy(dst: &conn->resp_addr, src: 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(dst: &conn->resp_addr, |
5849 | src: &conn->hdev->random_addr); |
5850 | } else { |
5851 | bacpy(dst: &conn->resp_addr, src: &conn->hdev->bdaddr); |
5852 | } |
5853 | |
5854 | conn->init_addr_type = bdaddr_type; |
5855 | bacpy(dst: &conn->init_addr, src: 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 | |
5867 | static void le_conn_complete_evt(struct hci_dev *hdev, u8 status, |
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) |
5872 | { |
5873 | struct hci_conn_params *params; |
5874 | struct hci_conn *conn; |
5875 | struct smp_irk *irk; |
5876 | u8 addr_type; |
5877 | |
5878 | hci_dev_lock(hdev); |
5879 | |
5880 | /* All controllers implicitly stop advertising in the event of a |
5881 | * connection, so ensure that the state bit is cleared. |
5882 | */ |
5883 | hci_dev_clear_flag(hdev, HCI_LE_ADV); |
5884 | |
5885 | conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, ba: bdaddr); |
5886 | if (!conn) { |
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 | |
5893 | conn = hci_conn_add_unset(hdev, LE_LINK, dst: bdaddr, role); |
5894 | if (!conn) { |
5895 | bt_dev_err(hdev, "no memory for new connection" ); |
5896 | goto unlock; |
5897 | } |
5898 | |
5899 | conn->dst_type = bdaddr_type; |
5900 | |
5901 | /* If we didn't have a hci_conn object previously |
5902 | * but we're in central role this must be something |
5903 | * initiated using an accept list. Since accept list based |
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) { |
5910 | conn->resp_addr_type = bdaddr_type; |
5911 | bacpy(dst: &conn->resp_addr, src: bdaddr); |
5912 | if (hci_dev_test_flag(hdev, HCI_PRIVACY)) { |
5913 | conn->init_addr_type = ADDR_LE_DEV_RANDOM; |
5914 | bacpy(dst: &conn->init_addr, src: &hdev->rpa); |
5915 | } else { |
5916 | hci_copy_identity_address(hdev, |
5917 | bdaddr: &conn->init_addr, |
5918 | bdaddr_type: &conn->init_addr_type); |
5919 | } |
5920 | } |
5921 | } else { |
5922 | cancel_delayed_work(dwork: &conn->le_conn_timeout); |
5923 | } |
5924 | |
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 | */ |
5931 | if (!HCI_CONN_HANDLE_UNSET(conn->handle)) { |
5932 | bt_dev_err(hdev, "Ignoring HCI_Connection_Complete for existing connection" ); |
5933 | goto unlock; |
5934 | } |
5935 | |
5936 | le_conn_update_addr(conn, bdaddr, bdaddr_type, local_rpa); |
5937 | |
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, bdaddr: &conn->dst, addr_type: conn->dst_type); |
5948 | if (irk) { |
5949 | bacpy(dst: &conn->dst, src: &irk->bdaddr); |
5950 | conn->dst_type = irk->addr_type; |
5951 | } |
5952 | |
5953 | conn->dst_type = ev_bdaddr_type(hdev, type: conn->dst_type, NULL); |
5954 | |
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 | */ |
5959 | if (status || hci_conn_set_handle(conn, handle)) |
5960 | goto unlock; |
5961 | |
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 | |
5968 | if (conn->dst_type == ADDR_LE_DEV_PUBLIC) |
5969 | addr_type = BDADDR_LE_PUBLIC; |
5970 | else |
5971 | addr_type = BDADDR_LE_RANDOM; |
5972 | |
5973 | /* Drop the connection if the device is blocked */ |
5974 | if (hci_bdaddr_list_lookup(list: &hdev->reject_list, bdaddr: &conn->dst, type: addr_type)) { |
5975 | hci_conn_drop(conn); |
5976 | goto unlock; |
5977 | } |
5978 | |
5979 | if (!test_and_set_bit(nr: HCI_CONN_MGMT_CONNECTED, addr: &conn->flags)) |
5980 | mgmt_device_connected(hdev, conn, NULL, name_len: 0); |
5981 | |
5982 | conn->sec_level = BT_SECURITY_LOW; |
5983 | conn->state = BT_CONFIG; |
5984 | |
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 | |
5992 | conn->le_conn_interval = interval; |
5993 | conn->le_conn_latency = latency; |
5994 | conn->le_supv_timeout = supervision_timeout; |
5995 | |
5996 | hci_debugfs_create_conn(conn); |
5997 | hci_conn_add_sysfs(conn); |
5998 | |
5999 | /* The remote features procedure is defined for central |
6000 | * role only. So only in case of an initiated connection |
6001 | * request the remote features. |
6002 | * |
6003 | * If the local controller supports peripheral-initiated features |
6004 | * exchange, then requesting the remote features in peripheral |
6005 | * role is possible. Otherwise just transition into the |
6006 | * connected state without requesting the remote features. |
6007 | */ |
6008 | if (conn->out || |
6009 | (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) { |
6010 | struct hci_cp_le_read_remote_features cp; |
6011 | |
6012 | cp.handle = __cpu_to_le16(conn->handle); |
6013 | |
6014 | hci_send_cmd(hdev, HCI_OP_LE_READ_REMOTE_FEATURES, |
6015 | plen: sizeof(cp), param: &cp); |
6016 | |
6017 | hci_conn_hold(conn); |
6018 | } else { |
6019 | conn->state = BT_CONNECTED; |
6020 | hci_connect_cfm(conn, status); |
6021 | } |
6022 | |
6023 | params = hci_pend_le_action_lookup(list: &hdev->pend_le_conns, addr: &conn->dst, |
6024 | addr_type: conn->dst_type); |
6025 | if (params) { |
6026 | hci_pend_le_list_del_init(param: params); |
6027 | if (params->conn) { |
6028 | hci_conn_drop(conn: params->conn); |
6029 | hci_conn_put(conn: params->conn); |
6030 | params->conn = NULL; |
6031 | } |
6032 | } |
6033 | |
6034 | unlock: |
6035 | hci_update_passive_scan(hdev); |
6036 | hci_dev_unlock(hdev); |
6037 | } |
6038 | |
6039 | static void hci_le_conn_complete_evt(struct hci_dev *hdev, void *data, |
6040 | struct sk_buff *skb) |
6041 | { |
6042 | struct hci_ev_le_conn_complete *ev = data; |
6043 | |
6044 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
6045 | |
6046 | le_conn_complete_evt(hdev, status: ev->status, bdaddr: &ev->bdaddr, bdaddr_type: ev->bdaddr_type, |
6047 | NULL, role: ev->role, le16_to_cpu(ev->handle), |
6048 | le16_to_cpu(ev->interval), |
6049 | le16_to_cpu(ev->latency), |
6050 | le16_to_cpu(ev->supervision_timeout)); |
6051 | } |
6052 | |
6053 | static void hci_le_enh_conn_complete_evt(struct hci_dev *hdev, void *data, |
6054 | struct sk_buff *skb) |
6055 | { |
6056 | struct hci_ev_le_enh_conn_complete *ev = data; |
6057 | |
6058 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
6059 | |
6060 | le_conn_complete_evt(hdev, status: ev->status, bdaddr: &ev->bdaddr, bdaddr_type: ev->bdaddr_type, |
6061 | local_rpa: &ev->local_rpa, role: ev->role, le16_to_cpu(ev->handle), |
6062 | le16_to_cpu(ev->interval), |
6063 | le16_to_cpu(ev->latency), |
6064 | le16_to_cpu(ev->supervision_timeout)); |
6065 | } |
6066 | |
6067 | static void hci_le_ext_adv_term_evt(struct hci_dev *hdev, void *data, |
6068 | struct sk_buff *skb) |
6069 | { |
6070 | struct hci_evt_le_ext_adv_set_term *ev = data; |
6071 | struct hci_conn *conn; |
6072 | struct adv_info *adv, *n; |
6073 | |
6074 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
6075 | |
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 | |
6088 | hci_dev_lock(hdev); |
6089 | |
6090 | adv = hci_find_adv_instance(hdev, instance: ev->handle); |
6091 | |
6092 | if (ev->status) { |
6093 | if (!adv) |
6094 | goto unlock; |
6095 | |
6096 | /* Remove advertising as it has been terminated */ |
6097 | hci_remove_adv_instance(hdev, instance: ev->handle); |
6098 | mgmt_advertising_removed(NULL, hdev, instance: ev->handle); |
6099 | |
6100 | list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) { |
6101 | if (adv->enabled) |
6102 | goto unlock; |
6103 | } |
6104 | |
6105 | /* We are no longer advertising, clear HCI_LE_ADV */ |
6106 | hci_dev_clear_flag(hdev, HCI_LE_ADV); |
6107 | goto unlock; |
6108 | } |
6109 | |
6110 | if (adv) |
6111 | adv->enabled = false; |
6112 | |
6113 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->conn_handle)); |
6114 | if (conn) { |
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; |
6119 | |
6120 | if (hdev->adv_addr_type != ADDR_LE_DEV_RANDOM || |
6121 | bacmp(ba1: &conn->resp_addr, BDADDR_ANY)) |
6122 | goto unlock; |
6123 | |
6124 | if (!ev->handle) { |
6125 | bacpy(dst: &conn->resp_addr, src: &hdev->random_addr); |
6126 | goto unlock; |
6127 | } |
6128 | |
6129 | if (adv) |
6130 | bacpy(dst: &conn->resp_addr, src: &adv->random_addr); |
6131 | } |
6132 | |
6133 | unlock: |
6134 | hci_dev_unlock(hdev); |
6135 | } |
6136 | |
6137 | static void hci_le_conn_update_complete_evt(struct hci_dev *hdev, void *data, |
6138 | struct sk_buff *skb) |
6139 | { |
6140 | struct hci_ev_le_conn_update_complete *ev = data; |
6141 | struct hci_conn *conn; |
6142 | |
6143 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
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 | |
6160 | /* This function requires the caller holds hdev->lock */ |
6161 | static struct hci_conn *check_pending_le_conn(struct hci_dev *hdev, |
6162 | bdaddr_t *addr, |
6163 | u8 addr_type, bool addr_resolved, |
6164 | u8 adv_type) |
6165 | { |
6166 | struct hci_conn *conn; |
6167 | struct hci_conn_params *params; |
6168 | |
6169 | /* If the event is not connectable don't proceed further */ |
6170 | if (adv_type != LE_ADV_IND && adv_type != LE_ADV_DIRECT_IND) |
6171 | return NULL; |
6172 | |
6173 | /* Ignore if the device is blocked or hdev is suspended */ |
6174 | if (hci_bdaddr_list_lookup(list: &hdev->reject_list, bdaddr: addr, type: addr_type) || |
6175 | hdev->suspended) |
6176 | return NULL; |
6177 | |
6178 | /* Most controller will fail if we try to create new connections |
6179 | * while we have an existing one in peripheral role. |
6180 | */ |
6181 | if (hdev->conn_hash.le_num_peripheral > 0 && |
6182 | (!test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) || |
6183 | !(hdev->le_states[3] & 0x10))) |
6184 | return NULL; |
6185 | |
6186 | /* If we're not connectable only connect devices that we have in |
6187 | * our pend_le_conns list. |
6188 | */ |
6189 | params = hci_pend_le_action_lookup(list: &hdev->pend_le_conns, addr, |
6190 | addr_type); |
6191 | if (!params) |
6192 | return NULL; |
6193 | |
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 |
6199 | * incoming connections from peripheral devices. |
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 |
6207 | * that incoming connections from peripheral device are |
6208 | * accepted and also outgoing connections to peripheral |
6209 | * devices are established when found. |
6210 | */ |
6211 | break; |
6212 | default: |
6213 | return NULL; |
6214 | } |
6215 | } |
6216 | |
6217 | conn = hci_connect_le(hdev, dst: addr, dst_type: addr_type, dst_resolved: addr_resolved, |
6218 | BT_SECURITY_LOW, conn_timeout: hdev->def_le_autoconnect_timeout, |
6219 | HCI_ROLE_MASTER); |
6220 | if (!IS_ERR(ptr: conn)) { |
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 |
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 | */ |
6229 | |
6230 | if (!params->explicit_connect) |
6231 | params->conn = hci_conn_get(conn); |
6232 | |
6233 | return conn; |
6234 | } |
6235 | |
6236 | switch (PTR_ERR(ptr: 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)); |
6246 | return NULL; |
6247 | } |
6248 | |
6249 | return NULL; |
6250 | } |
6251 | |
6252 | static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr, |
6253 | u8 bdaddr_type, bdaddr_t *direct_addr, |
6254 | u8 direct_addr_type, s8 , u8 *data, u8 len, |
6255 | bool ext_adv, bool ctl_time, u64 instant) |
6256 | { |
6257 | struct discovery_state *d = &hdev->discovery; |
6258 | struct smp_irk *irk; |
6259 | struct hci_conn *conn; |
6260 | bool match, bdaddr_resolved; |
6261 | u32 flags; |
6262 | u8 *ptr; |
6263 | |
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: |
6272 | bt_dev_err_ratelimited(hdev, "unknown advertising packet " |
6273 | "type: 0x%02x" , type); |
6274 | return; |
6275 | } |
6276 | |
6277 | if (len > max_adv_len(hdev)) { |
6278 | bt_dev_err_ratelimited(hdev, |
6279 | "adv larger than maximum supported" ); |
6280 | return; |
6281 | } |
6282 | |
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 | |
6294 | /* Adjust for actual length. This handles the case when remote |
6295 | * device is advertising with incorrect data length. |
6296 | */ |
6297 | len = ptr - data; |
6298 | |
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 | */ |
6304 | if (!hci_dev_test_flag(hdev, HCI_MESH) && direct_addr) { |
6305 | direct_addr_type = ev_bdaddr_type(hdev, type: direct_addr_type, |
6306 | resolved: &bdaddr_resolved); |
6307 | |
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(bdaddr: direct_addr, addr_type: direct_addr_type)) |
6312 | return; |
6313 | |
6314 | /* If the controller is not using resolvable random |
6315 | * addresses, then this report can be ignored. |
6316 | */ |
6317 | if (!hci_dev_test_flag(hdev, HCI_PRIVACY)) |
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, irk: hdev->irk, bdaddr: direct_addr)) |
6325 | return; |
6326 | } |
6327 | |
6328 | /* Check if we need to convert to identity address */ |
6329 | irk = hci_get_irk(hdev, bdaddr, addr_type: bdaddr_type); |
6330 | if (irk) { |
6331 | bdaddr = &irk->bdaddr; |
6332 | bdaddr_type = irk->addr_type; |
6333 | } |
6334 | |
6335 | bdaddr_type = ev_bdaddr_type(hdev, type: bdaddr_type, resolved: &bdaddr_resolved); |
6336 | |
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 | */ |
6342 | conn = check_pending_le_conn(hdev, addr: bdaddr, addr_type: bdaddr_type, addr_resolved: bdaddr_resolved, |
6343 | adv_type: type); |
6344 | if (!ext_adv && conn && type == LE_ADV_IND && |
6345 | len <= max_adv_len(hdev)) { |
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 | } |
6352 | |
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, addr_type: bdaddr_type, NULL, |
6361 | rssi, flags, eir: data, eir_len: len, NULL, scan_rsp_len: 0, instant); |
6362 | return; |
6363 | } |
6364 | |
6365 | /* Passive scanning shouldn't trigger any device found events, |
6366 | * except for devices marked as CONN_REPORT for which we do send |
6367 | * device found events, or advertisement monitoring requested. |
6368 | */ |
6369 | if (hdev->le_scan_type == LE_SCAN_PASSIVE) { |
6370 | if (type == LE_ADV_DIRECT_IND) |
6371 | return; |
6372 | |
6373 | if (!hci_pend_le_action_lookup(list: &hdev->pend_le_reports, |
6374 | addr: bdaddr, addr_type: bdaddr_type) && |
6375 | idr_is_empty(idr: &hdev->adv_monitors_idr)) |
6376 | return; |
6377 | |
6378 | mgmt_device_found(hdev, bdaddr, LE_LINK, addr_type: bdaddr_type, NULL, |
6379 | rssi, flags, eir: data, eir_len: len, NULL, scan_rsp_len: 0, instant: 0); |
6380 | return; |
6381 | } |
6382 | |
6383 | /* When receiving a scan response, then there is no way to |
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 | * |
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. |
6392 | */ |
6393 | if (type == LE_ADV_SCAN_RSP) |
6394 | flags = MGMT_DEV_FOUND_SCAN_RSP; |
6395 | |
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 | */ |
6400 | if (!ext_adv && !has_pending_adv_report(hdev)) { |
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, |
6406 | rssi, flags, data, len); |
6407 | return; |
6408 | } |
6409 | |
6410 | mgmt_device_found(hdev, bdaddr, LE_LINK, addr_type: bdaddr_type, NULL, |
6411 | rssi, flags, eir: data, eir_len: len, NULL, scan_rsp_len: 0, instant: 0); |
6412 | return; |
6413 | } |
6414 | |
6415 | /* Check if the pending report is for the same device as the new one */ |
6416 | match = (!bacmp(ba1: bdaddr, ba2: &d->last_adv_addr) && |
6417 | bdaddr_type == d->last_adv_addr_type); |
6418 | |
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 | */ |
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, bdaddr: &d->last_adv_addr, LE_LINK, |
6427 | addr_type: d->last_adv_addr_type, NULL, |
6428 | rssi: d->last_adv_rssi, flags: d->last_adv_flags, |
6429 | eir: d->last_adv_data, |
6430 | eir_len: d->last_adv_data_len, NULL, scan_rsp_len: 0, instant: 0); |
6431 | |
6432 | /* If the new report will trigger a SCAN_REQ store it for |
6433 | * later merging. |
6434 | */ |
6435 | if (!ext_adv && (type == LE_ADV_IND || |
6436 | type == LE_ADV_SCAN_IND)) { |
6437 | store_pending_adv_report(hdev, bdaddr, bdaddr_type, |
6438 | rssi, flags, data, len); |
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); |
6446 | mgmt_device_found(hdev, bdaddr, LE_LINK, addr_type: bdaddr_type, NULL, |
6447 | rssi, flags, eir: data, eir_len: len, NULL, scan_rsp_len: 0, instant: 0); |
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, bdaddr: &d->last_adv_addr, LE_LINK, |
6456 | addr_type: d->last_adv_addr_type, NULL, rssi, flags: d->last_adv_flags, |
6457 | eir: d->last_adv_data, eir_len: d->last_adv_data_len, scan_rsp: data, scan_rsp_len: len, instant: 0); |
6458 | clear_pending_adv_report(hdev); |
6459 | } |
6460 | |
6461 | static void hci_le_adv_report_evt(struct hci_dev *hdev, void *data, |
6462 | struct sk_buff *skb) |
6463 | { |
6464 | struct hci_ev_le_advertising_report *ev = data; |
6465 | u64 instant = jiffies; |
6466 | |
6467 | if (!ev->num) |
6468 | return; |
6469 | |
6470 | hci_dev_lock(hdev); |
6471 | |
6472 | while (ev->num--) { |
6473 | struct hci_ev_le_advertising_info *info; |
6474 | s8 ; |
6475 | |
6476 | info = hci_le_ev_skb_pull(hdev, skb, |
6477 | HCI_EV_LE_ADVERTISING_REPORT, |
6478 | len: sizeof(*info)); |
6479 | if (!info) |
6480 | break; |
6481 | |
6482 | if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_ADVERTISING_REPORT, |
6483 | len: info->length + 1)) |
6484 | break; |
6485 | |
6486 | if (info->length <= max_adv_len(hdev)) { |
6487 | rssi = info->data[info->length]; |
6488 | process_adv_report(hdev, type: info->type, bdaddr: &info->bdaddr, |
6489 | bdaddr_type: info->bdaddr_type, NULL, direct_addr_type: 0, rssi, |
6490 | data: info->data, len: info->length, ext_adv: false, |
6491 | ctl_time: false, instant); |
6492 | } else { |
6493 | bt_dev_err(hdev, "Dropping invalid advertising data" ); |
6494 | } |
6495 | } |
6496 | |
6497 | hci_dev_unlock(hdev); |
6498 | } |
6499 | |
6500 | static u8 ext_evt_type_to_legacy(struct hci_dev *hdev, u16 evt_type) |
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 | |
6517 | goto invalid; |
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 | |
6524 | return LE_ADV_IND; |
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) |
6531 | return LE_ADV_SCAN_IND; |
6532 | |
6533 | if (evt_type == LE_EXT_ADV_NON_CONN_IND || |
6534 | evt_type & LE_EXT_ADV_DIRECT_IND) |
6535 | return LE_ADV_NONCONN_IND; |
6536 | |
6537 | invalid: |
6538 | bt_dev_err_ratelimited(hdev, "Unknown advertising packet type: 0x%02x" , |
6539 | evt_type); |
6540 | |
6541 | return LE_ADV_INVALID; |
6542 | } |
6543 | |
6544 | static void hci_le_ext_adv_report_evt(struct hci_dev *hdev, void *data, |
6545 | struct sk_buff *skb) |
6546 | { |
6547 | struct hci_ev_le_ext_adv_report *ev = data; |
6548 | u64 instant = jiffies; |
6549 | |
6550 | if (!ev->num) |
6551 | return; |
6552 | |
6553 | hci_dev_lock(hdev); |
6554 | |
6555 | while (ev->num--) { |
6556 | struct hci_ev_le_ext_adv_info *info; |
6557 | u8 legacy_evt_type; |
6558 | u16 evt_type; |
6559 | |
6560 | info = hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT, |
6561 | len: sizeof(*info)); |
6562 | if (!info) |
6563 | break; |
6564 | |
6565 | if (!hci_le_ev_skb_pull(hdev, skb, HCI_EV_LE_EXT_ADV_REPORT, |
6566 | len: info->length)) |
6567 | break; |
6568 | |
6569 | evt_type = __le16_to_cpu(info->type) & LE_EXT_ADV_EVT_TYPE_MASK; |
6570 | legacy_evt_type = ext_evt_type_to_legacy(hdev, evt_type); |
6571 | if (legacy_evt_type != LE_ADV_INVALID) { |
6572 | process_adv_report(hdev, type: legacy_evt_type, bdaddr: &info->bdaddr, |
6573 | bdaddr_type: info->bdaddr_type, NULL, direct_addr_type: 0, |
6574 | rssi: info->rssi, data: info->data, len: info->length, |
6575 | ext_adv: !(evt_type & LE_EXT_ADV_LEGACY_PDU), |
6576 | ctl_time: false, instant); |
6577 | } |
6578 | } |
6579 | |
6580 | hci_dev_unlock(hdev); |
6581 | } |
6582 | |
6583 | static 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, plen: sizeof(cp), param: &cp); |
6591 | } |
6592 | |
6593 | static 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; |
6599 | struct hci_conn *pa_sync; |
6600 | |
6601 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
6602 | |
6603 | hci_dev_lock(hdev); |
6604 | |
6605 | hci_dev_clear_flag(hdev, HCI_PA_SYNC); |
6606 | |
6607 | mask |= hci_proto_connect_ind(hdev, bdaddr: &ev->bdaddr, ISO_LINK, flags: &flags); |
6608 | if (!(mask & HCI_LM_ACCEPT)) { |
6609 | hci_le_pa_term_sync(hdev, handle: ev->handle); |
6610 | goto unlock; |
6611 | } |
6612 | |
6613 | if (!(flags & HCI_PROTO_DEFER)) |
6614 | goto unlock; |
6615 | |
6616 | if (ev->status) { |
6617 | /* Add connection to indicate the failed PA sync event */ |
6618 | pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY, |
6619 | HCI_ROLE_SLAVE); |
6620 | |
6621 | if (!pa_sync) |
6622 | goto unlock; |
6623 | |
6624 | set_bit(nr: HCI_CONN_PA_SYNC_FAILED, addr: &pa_sync->flags); |
6625 | |
6626 | /* Notify iso layer */ |
6627 | hci_connect_cfm(conn: pa_sync, status: ev->status); |
6628 | } |
6629 | |
6630 | unlock: |
6631 | hci_dev_unlock(hdev); |
6632 | } |
6633 | |
6634 | static 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: &flags); |
6646 | if (!(mask & HCI_LM_ACCEPT)) |
6647 | hci_le_pa_term_sync(hdev, handle: ev->sync_handle); |
6648 | |
6649 | hci_dev_unlock(hdev); |
6650 | } |
6651 | |
6652 | static void hci_le_remote_feat_complete_evt(struct hci_dev *hdev, void *data, |
6653 | struct sk_buff *skb) |
6654 | { |
6655 | struct hci_ev_le_remote_feat_complete *ev = data; |
6656 | struct hci_conn *conn; |
6657 | |
6658 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
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 | |
6670 | /* If the local controller supports peripheral-initiated |
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 | */ |
6679 | if (!conn->out && ev->status == 0x1a && |
6680 | (hdev->le_features[0] & HCI_LE_PERIPHERAL_FEATURES)) |
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 | |
6694 | static void hci_le_ltk_request_evt(struct hci_dev *hdev, void *data, |
6695 | struct sk_buff *skb) |
6696 | { |
6697 | struct hci_ev_le_ltk_req *ev = data; |
6698 | struct hci_cp_le_ltk_reply cp; |
6699 | struct hci_cp_le_ltk_neg_reply neg; |
6700 | struct hci_conn *conn; |
6701 | struct smp_ltk *ltk; |
6702 | |
6703 | bt_dev_dbg(hdev, "handle 0x%4.4x" , __le16_to_cpu(ev->handle)); |
6704 | |
6705 | hci_dev_lock(hdev); |
6706 | |
6707 | conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); |
6708 | if (conn == NULL) |
6709 | goto not_found; |
6710 | |
6711 | ltk = hci_find_ltk(hdev, bdaddr: &conn->dst, addr_type: conn->dst_type, role: conn->role); |
6712 | if (!ltk) |
6713 | goto not_found; |
6714 | |
6715 | if (smp_ltk_is_sc(key: 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 | |
6725 | memcpy(cp.ltk, ltk->val, ltk->enc_size); |
6726 | memset(cp.ltk + ltk->enc_size, 0, sizeof(cp.ltk) - ltk->enc_size); |
6727 | cp.handle = cpu_to_le16(conn->handle); |
6728 | |
6729 | conn->pending_sec_level = smp_ltk_sec_level(key: ltk); |
6730 | |
6731 | conn->enc_key_size = ltk->enc_size; |
6732 | |
6733 | hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, plen: sizeof(cp), param: &cp); |
6734 | |
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 | */ |
6741 | if (ltk->type == SMP_STK) { |
6742 | set_bit(nr: HCI_CONN_STK_ENCRYPT, addr: &conn->flags); |
6743 | list_del_rcu(entry: <k->list); |
6744 | kfree_rcu(ltk, rcu); |
6745 | } else { |
6746 | clear_bit(nr: HCI_CONN_STK_ENCRYPT, addr: &conn->flags); |
6747 | } |
6748 | |
6749 | hci_dev_unlock(hdev); |
6750 | |
6751 | return; |
6752 | |
6753 | not_found: |
6754 | neg.handle = ev->handle; |
6755 | hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, plen: sizeof(neg), param: &neg); |
6756 | hci_dev_unlock(hdev); |
6757 | } |
6758 | |
6759 | static 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, plen: sizeof(cp), |
6768 | param: &cp); |
6769 | } |
6770 | |
6771 | static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, void *data, |
6772 | struct sk_buff *skb) |
6773 | { |
6774 | struct hci_ev_le_remote_conn_param_req *ev = data; |
6775 | struct hci_cp_le_conn_param_req_reply cp; |
6776 | struct hci_conn *hcon; |
6777 | u16 handle, min, max, latency, timeout; |
6778 | |
6779 | bt_dev_dbg(hdev, "handle 0x%4.4x" , __le16_to_cpu(ev->handle)); |
6780 | |
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, to_multiplier: timeout)) |
6793 | return send_conn_param_neg_reply(hdev, handle, |
6794 | HCI_ERROR_INVALID_LL_PARAMS); |
6795 | |
6796 | if (hcon->role == HCI_ROLE_MASTER) { |
6797 | struct hci_conn_params *params; |
6798 | u8 store_hint; |
6799 | |
6800 | hci_dev_lock(hdev); |
6801 | |
6802 | params = hci_conn_params_lookup(hdev, addr: &hcon->dst, |
6803 | addr_type: 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; |
6809 | store_hint = 0x01; |
6810 | } else { |
6811 | store_hint = 0x00; |
6812 | } |
6813 | |
6814 | hci_dev_unlock(hdev); |
6815 | |
6816 | mgmt_new_conn_param(hdev, bdaddr: &hcon->dst, bdaddr_type: hcon->dst_type, |
6817 | store_hint, min_interval: min, max_interval: max, latency, timeout); |
6818 | } |
6819 | |
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, plen: sizeof(cp), param: &cp); |
6829 | } |
6830 | |
6831 | static void hci_le_direct_adv_report_evt(struct hci_dev *hdev, void *data, |
6832 | struct sk_buff *skb) |
6833 | { |
6834 | struct hci_ev_le_direct_adv_report *ev = data; |
6835 | u64 instant = jiffies; |
6836 | int i; |
6837 | |
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) |
6843 | return; |
6844 | |
6845 | hci_dev_lock(hdev); |
6846 | |
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, type: info->type, bdaddr: &info->bdaddr, |
6851 | bdaddr_type: info->bdaddr_type, direct_addr: &info->direct_addr, |
6852 | direct_addr_type: info->direct_addr_type, rssi: info->rssi, NULL, len: 0, |
6853 | ext_adv: false, ctl_time: false, instant); |
6854 | } |
6855 | |
6856 | hci_dev_unlock(hdev); |
6857 | } |
6858 | |
6859 | static void hci_le_phy_update_evt(struct hci_dev *hdev, void *data, |
6860 | struct sk_buff *skb) |
6861 | { |
6862 | struct hci_ev_le_phy_update_complete *ev = data; |
6863 | struct hci_conn *conn; |
6864 | |
6865 | bt_dev_dbg(hdev, "status 0x%2.2x" , ev->status); |
6866 | |
6867 | if (ev->status) |
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 | |
6879 | unlock: |
6880 | hci_dev_unlock(hdev); |
6881 | } |
6882 | |
6883 | static 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; |
6888 | struct bt_iso_qos *qos; |
6889 | bool pending = false; |
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 | |
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 | |
6911 | qos = &conn->iso_qos; |
6912 | |
6913 | pending = test_and_clear_bit(nr: HCI_CONN_CREATE_CIS, addr: &conn->flags); |
6914 | |
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; |
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 | |
6956 | conn->state = BT_CLOSED; |
6957 | hci_connect_cfm(conn, status: ev->status); |
6958 | hci_conn_del(conn); |
6959 | |
6960 | unlock: |
6961 | if (pending) |
6962 | hci_le_create_cis_pending(hdev); |
6963 | |
6964 | hci_dev_unlock(hdev); |
6965 | } |
6966 | |
6967 | static 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, plen: sizeof(cp), param: &cp); |
6975 | } |
6976 | |
6977 | static 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, plen: sizeof(cp), param: &cp); |
6984 | } |
6985 | |
6986 | static 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, handle: acl_handle); |
7004 | if (!acl) |
7005 | goto unlock; |
7006 | |
7007 | mask = hci_proto_connect_ind(hdev, bdaddr: &acl->dst, ISO_LINK, flags: &flags); |
7008 | if (!(mask & HCI_LM_ACCEPT)) { |
7009 | hci_le_reject_cis(hdev, handle: ev->cis_handle); |
7010 | goto unlock; |
7011 | } |
7012 | |
7013 | cis = hci_conn_hash_lookup_handle(hdev, handle: cis_handle); |
7014 | if (!cis) { |
7015 | cis = hci_conn_add(hdev, ISO_LINK, dst: &acl->dst, HCI_ROLE_SLAVE, |
7016 | handle: cis_handle); |
7017 | if (!cis) { |
7018 | hci_le_reject_cis(hdev, handle: ev->cis_handle); |
7019 | goto unlock; |
7020 | } |
7021 | } |
7022 | |
7023 | cis->iso_qos.ucast.cig = ev->cig_id; |
7024 | cis->iso_qos.ucast.cis = ev->cis_id; |
7025 | |
7026 | if (!(flags & HCI_PROTO_DEFER)) { |
7027 | hci_le_accept_cis(hdev, handle: ev->cis_handle); |
7028 | } else { |
7029 | cis->state = BT_CONNECT2; |
7030 | hci_connect_cfm(conn: cis, status: 0); |
7031 | } |
7032 | |
7033 | unlock: |
7034 | hci_dev_unlock(hdev); |
7035 | } |
7036 | |
7037 | static 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 | |
7045 | static 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; |
7050 | __u8 i = 0; |
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); |
7059 | rcu_read_lock(); |
7060 | |
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(ba1: &conn->dst, BDADDR_ANY) || |
7064 | conn->type != ISO_LINK || |
7065 | conn->iso_qos.bcast.big != ev->handle) |
7066 | continue; |
7067 | |
7068 | if (hci_conn_set_handle(conn, |
7069 | __le16_to_cpu(ev->bis_handle[i++]))) |
7070 | continue; |
7071 | |
7072 | if (!ev->status) { |
7073 | conn->state = BT_CONNECTED; |
7074 | set_bit(nr: HCI_CONN_BIG_CREATED, addr: &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 | } |
7082 | |
7083 | hci_connect_cfm(conn, status: ev->status); |
7084 | rcu_read_unlock(); |
7085 | hci_conn_del(conn); |
7086 | rcu_read_lock(); |
7087 | } |
7088 | |
7089 | rcu_read_unlock(); |
7090 | |
7091 | if (!ev->status && !i) |
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 | */ |
7097 | hci_cmd_sync_queue(hdev, func: hci_iso_term_big_sync, |
7098 | UINT_PTR(ev->handle), NULL); |
7099 | |
7100 | hci_dev_unlock(hdev); |
7101 | } |
7102 | |
7103 | static 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 | |
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, |
7125 | HCI_ROLE_SLAVE, handle); |
7126 | if (!bis) |
7127 | continue; |
7128 | } |
7129 | |
7130 | if (ev->status != 0x42) |
7131 | /* Mark PA sync as established */ |
7132 | set_bit(nr: HCI_CONN_PA_SYNC, addr: &bis->flags); |
7133 | |
7134 | bis->iso_qos.bcast.big = ev->handle; |
7135 | memset(&interval, 0, sizeof(interval)); |
7136 | memcpy(&interval, ev->latency, sizeof(ev->latency)); |
7137 | bis->iso_qos.bcast.in.interval = le32_to_cpu(interval); |
7138 | /* Convert ISO Interval (1.25 ms slots) to latency (ms) */ |
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); |
7141 | |
7142 | if (!ev->status) { |
7143 | set_bit(nr: HCI_CONN_BIG_SYNC, addr: &bis->flags); |
7144 | hci_iso_setup_path(conn: bis); |
7145 | } |
7146 | } |
7147 | |
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(nr: HCI_CONN_BIG_SYNC_FAILED, addr: &bis->flags); |
7158 | hci_connect_cfm(conn: bis, status: ev->status); |
7159 | } |
7160 | |
7161 | hci_dev_unlock(hdev); |
7162 | } |
7163 | |
7164 | static 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; |
7170 | struct hci_conn *pa_sync; |
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: &flags); |
7177 | if (!(mask & HCI_LM_ACCEPT)) { |
7178 | hci_le_pa_term_sync(hdev, handle: ev->sync_handle); |
7179 | goto unlock; |
7180 | } |
7181 | |
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 */ |
7193 | pa_sync = hci_conn_add_unset(hdev, ISO_LINK, BDADDR_ANY, |
7194 | HCI_ROLE_SLAVE); |
7195 | |
7196 | if (!pa_sync) |
7197 | goto unlock; |
7198 | |
7199 | pa_sync->sync_handle = le16_to_cpu(ev->sync_handle); |
7200 | set_bit(nr: HCI_CONN_PA_SYNC, addr: &pa_sync->flags); |
7201 | |
7202 | /* Notify iso layer */ |
7203 | hci_connect_cfm(conn: pa_sync, status: 0x00); |
7204 | |
7205 | unlock: |
7206 | hci_dev_unlock(hdev); |
7207 | } |
7208 | |
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 | */ |
7227 | static 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), |
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)), |
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), |
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)), |
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)), |
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), |
7302 | }; |
7303 | |
7304 | static void hci_le_meta_evt(struct hci_dev *hdev, void *data, |
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) |
7308 | { |
7309 | struct hci_ev_le_meta *ev = data; |
7310 | const struct hci_le_ev *subev; |
7311 | |
7312 | bt_dev_dbg(hdev, "subevent 0x%2.2x" , ev->subevent); |
7313 | |
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: *opcode, status: 0x00, req_complete, |
7320 | req_complete_skb); |
7321 | } |
7322 | |
7323 | subev = &hci_le_ev_table[ev->subevent]; |
7324 | if (!subev->func) |
7325 | return; |
7326 | |
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 | } |
7332 | |
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); |
7340 | data = hci_le_ev_skb_pull(hdev, skb, ev: ev->subevent, len: subev->min_len); |
7341 | if (!data) |
7342 | return; |
7343 | |
7344 | subev->func(hdev, data, skb); |
7345 | } |
7346 | |
7347 | static 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 | |
7356 | hdr = hci_ev_skb_pull(hdev, skb, ev: event, len: sizeof(*hdr)); |
7357 | if (!hdr) |
7358 | return false; |
7359 | |
7360 | if (event) { |
7361 | if (hdr->evt != event) |
7362 | return false; |
7363 | return true; |
7364 | } |
7365 | |
7366 | /* Check if request ended in Command Status - no way to retrieve |
7367 | * any extra parameters in this case. |
7368 | */ |
7369 | if (hdr->evt == HCI_EV_CMD_STATUS) |
7370 | return false; |
7371 | |
7372 | if (hdr->evt != HCI_EV_CMD_COMPLETE) { |
7373 | bt_dev_err(hdev, "last event is not cmd complete (0x%2.2x)" , |
7374 | hdr->evt); |
7375 | return false; |
7376 | } |
7377 | |
7378 | ev = hci_cc_skb_pull(hdev, skb, op: opcode, len: sizeof(*ev)); |
7379 | if (!ev) |
7380 | return false; |
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 | |
7391 | static 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; |
7396 | struct hci_ev_le_ext_adv_info *ext_adv; |
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(dst: &hdev->wake_addr, src: &conn_complete->bdaddr); |
7419 | hdev->wake_addr_type = BDADDR_BREDR; |
7420 | } else if (event == HCI_EV_CONN_COMPLETE) { |
7421 | bacpy(dst: &hdev->wake_addr, src: &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(dst: &hdev->wake_addr, src: &adv->bdaddr); |
7440 | hdev->wake_addr_type = adv->bdaddr_type; |
7441 | break; |
7442 | case HCI_EV_LE_DIRECT_ADV_REPORT: |
7443 | bacpy(dst: &hdev->wake_addr, src: &direct_adv->bdaddr); |
7444 | hdev->wake_addr_type = direct_adv->bdaddr_type; |
7445 | break; |
7446 | case HCI_EV_LE_EXT_ADV_REPORT: |
7447 | bacpy(dst: &hdev->wake_addr, src: &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 | |
7456 | unlock: |
7457 | hci_dev_unlock(hdev); |
7458 | } |
7459 | |
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 | */ |
7490 | static 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] */ |
7615 | HCI_EV_REQ_VL(HCI_EV_LE_META, hci_le_meta_evt, |
7616 | sizeof(struct hci_ev_le_meta), HCI_MAX_EVENT_SIZE), |
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] */ |
7640 | HCI_EV_VL(HCI_EV_VENDOR, msft_vendor_evt, 0, HCI_MAX_EVENT_SIZE), |
7641 | }; |
7642 | |
7643 | static 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) |
7665 | bt_dev_warn_ratelimited(hdev, |
7666 | "unexpected event 0x%2.2x length: %u > %u" , |
7667 | event, skb->len, ev->max_len); |
7668 | |
7669 | data = hci_ev_skb_pull(hdev, skb, ev: event, len: 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 | |
7680 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) |
7681 | { |
7682 | struct hci_event_hdr *hdr = (void *) skb->data; |
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; |
7686 | u8 status = 0, event, req_evt = 0; |
7687 | u16 opcode = HCI_OP_NOP; |
7688 | |
7689 | if (skb->len < sizeof(*hdr)) { |
7690 | bt_dev_err(hdev, "Malformed HCI Event" ); |
7691 | goto done; |
7692 | } |
7693 | |
7694 | kfree_skb(skb: hdev->recv_event); |
7695 | hdev->recv_event = skb_clone(skb, GFP_KERNEL); |
7696 | |
7697 | event = hdr->evt; |
7698 | if (!event) { |
7699 | bt_dev_warn(hdev, "Received unexpected HCI Event 0x%2.2x" , |
7700 | event); |
7701 | goto done; |
7702 | } |
7703 | |
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, req_complete_skb: &req_complete_skb); |
7710 | req_evt = event; |
7711 | } |
7712 | |
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 | |
7724 | /* Store wake reason if we're suspended */ |
7725 | hci_store_wake_reason(hdev, event, skb); |
7726 | |
7727 | bt_dev_dbg(hdev, "event 0x%2.2x" , event); |
7728 | |
7729 | hci_event_func(hdev, event, skb, opcode: &opcode, status: &status, req_complete: &req_complete, |
7730 | req_complete_skb: &req_complete_skb); |
7731 | |
7732 | if (req_complete) { |
7733 | req_complete(hdev, status, opcode); |
7734 | } else if (req_complete_skb) { |
7735 | if (!hci_get_cmd_complete(hdev, opcode, event: req_evt, skb: orig_skb)) { |
7736 | kfree_skb(skb: orig_skb); |
7737 | orig_skb = NULL; |
7738 | } |
7739 | req_complete_skb(hdev, status, opcode, orig_skb); |
7740 | } |
7741 | |
7742 | done: |
7743 | kfree_skb(skb: orig_skb); |
7744 | kfree_skb(skb); |
7745 | hdev->stat.evt_rx++; |
7746 | } |
7747 | |