1 | /* |
2 | BlueZ - Bluetooth protocol stack for Linux |
3 | |
4 | Copyright (C) 2014 Intel Corporation |
5 | |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License version 2 as |
8 | published by the Free Software Foundation; |
9 | |
10 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
11 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
12 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
13 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
14 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
15 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
16 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
17 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
18 | |
19 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
20 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
21 | SOFTWARE IS DISCLAIMED. |
22 | */ |
23 | |
24 | #include <linux/debugfs.h> |
25 | #include <linux/kstrtox.h> |
26 | |
27 | #include <net/bluetooth/bluetooth.h> |
28 | #include <net/bluetooth/hci_core.h> |
29 | |
30 | #include "smp.h" |
31 | #include "hci_request.h" |
32 | #include "hci_debugfs.h" |
33 | |
34 | #define DEFINE_QUIRK_ATTRIBUTE(__name, __quirk) \ |
35 | static ssize_t __name ## _read(struct file *file, \ |
36 | char __user *user_buf, \ |
37 | size_t count, loff_t *ppos) \ |
38 | { \ |
39 | struct hci_dev *hdev = file->private_data; \ |
40 | char buf[3]; \ |
41 | \ |
42 | buf[0] = test_bit(__quirk, &hdev->quirks) ? 'Y' : 'N'; \ |
43 | buf[1] = '\n'; \ |
44 | buf[2] = '\0'; \ |
45 | return simple_read_from_buffer(user_buf, count, ppos, buf, 2); \ |
46 | } \ |
47 | \ |
48 | static ssize_t __name ## _write(struct file *file, \ |
49 | const char __user *user_buf, \ |
50 | size_t count, loff_t *ppos) \ |
51 | { \ |
52 | struct hci_dev *hdev = file->private_data; \ |
53 | bool enable; \ |
54 | int err; \ |
55 | \ |
56 | if (test_bit(HCI_UP, &hdev->flags)) \ |
57 | return -EBUSY; \ |
58 | \ |
59 | err = kstrtobool_from_user(user_buf, count, &enable); \ |
60 | if (err) \ |
61 | return err; \ |
62 | \ |
63 | if (enable == test_bit(__quirk, &hdev->quirks)) \ |
64 | return -EALREADY; \ |
65 | \ |
66 | change_bit(__quirk, &hdev->quirks); \ |
67 | \ |
68 | return count; \ |
69 | } \ |
70 | \ |
71 | static const struct file_operations __name ## _fops = { \ |
72 | .open = simple_open, \ |
73 | .read = __name ## _read, \ |
74 | .write = __name ## _write, \ |
75 | .llseek = default_llseek, \ |
76 | } \ |
77 | |
78 | #define DEFINE_INFO_ATTRIBUTE(__name, __field) \ |
79 | static int __name ## _show(struct seq_file *f, void *ptr) \ |
80 | { \ |
81 | struct hci_dev *hdev = f->private; \ |
82 | \ |
83 | hci_dev_lock(hdev); \ |
84 | seq_printf(f, "%s\n", hdev->__field ? : ""); \ |
85 | hci_dev_unlock(hdev); \ |
86 | \ |
87 | return 0; \ |
88 | } \ |
89 | \ |
90 | DEFINE_SHOW_ATTRIBUTE(__name) |
91 | |
92 | static int features_show(struct seq_file *f, void *ptr) |
93 | { |
94 | struct hci_dev *hdev = f->private; |
95 | u8 p; |
96 | |
97 | hci_dev_lock(hdev); |
98 | for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) |
99 | seq_printf(m: f, fmt: "%2u: %8ph\n" , p, hdev->features[p]); |
100 | if (lmp_le_capable(hdev)) |
101 | seq_printf(m: f, fmt: "LE: %8ph\n" , hdev->le_features); |
102 | hci_dev_unlock(hdev); |
103 | |
104 | return 0; |
105 | } |
106 | |
107 | DEFINE_SHOW_ATTRIBUTE(features); |
108 | |
109 | static int device_id_show(struct seq_file *f, void *ptr) |
110 | { |
111 | struct hci_dev *hdev = f->private; |
112 | |
113 | hci_dev_lock(hdev); |
114 | seq_printf(m: f, fmt: "%4.4x:%4.4x:%4.4x:%4.4x\n" , hdev->devid_source, |
115 | hdev->devid_vendor, hdev->devid_product, hdev->devid_version); |
116 | hci_dev_unlock(hdev); |
117 | |
118 | return 0; |
119 | } |
120 | |
121 | DEFINE_SHOW_ATTRIBUTE(device_id); |
122 | |
123 | static int device_list_show(struct seq_file *f, void *ptr) |
124 | { |
125 | struct hci_dev *hdev = f->private; |
126 | struct hci_conn_params *p; |
127 | struct bdaddr_list *b; |
128 | |
129 | hci_dev_lock(hdev); |
130 | list_for_each_entry(b, &hdev->accept_list, list) |
131 | seq_printf(m: f, fmt: "%pMR (type %u)\n" , &b->bdaddr, b->bdaddr_type); |
132 | list_for_each_entry(p, &hdev->le_conn_params, list) { |
133 | seq_printf(m: f, fmt: "%pMR (type %u) %u\n" , &p->addr, p->addr_type, |
134 | p->auto_connect); |
135 | } |
136 | hci_dev_unlock(hdev); |
137 | |
138 | return 0; |
139 | } |
140 | |
141 | DEFINE_SHOW_ATTRIBUTE(device_list); |
142 | |
143 | static int blacklist_show(struct seq_file *f, void *p) |
144 | { |
145 | struct hci_dev *hdev = f->private; |
146 | struct bdaddr_list *b; |
147 | |
148 | hci_dev_lock(hdev); |
149 | list_for_each_entry(b, &hdev->reject_list, list) |
150 | seq_printf(m: f, fmt: "%pMR (type %u)\n" , &b->bdaddr, b->bdaddr_type); |
151 | hci_dev_unlock(hdev); |
152 | |
153 | return 0; |
154 | } |
155 | |
156 | DEFINE_SHOW_ATTRIBUTE(blacklist); |
157 | |
158 | static int blocked_keys_show(struct seq_file *f, void *p) |
159 | { |
160 | struct hci_dev *hdev = f->private; |
161 | struct blocked_key *key; |
162 | |
163 | rcu_read_lock(); |
164 | list_for_each_entry_rcu(key, &hdev->blocked_keys, list) |
165 | seq_printf(m: f, fmt: "%u %*phN\n" , key->type, 16, key->val); |
166 | rcu_read_unlock(); |
167 | |
168 | return 0; |
169 | } |
170 | |
171 | DEFINE_SHOW_ATTRIBUTE(blocked_keys); |
172 | |
173 | static int uuids_show(struct seq_file *f, void *p) |
174 | { |
175 | struct hci_dev *hdev = f->private; |
176 | struct bt_uuid *uuid; |
177 | |
178 | hci_dev_lock(hdev); |
179 | list_for_each_entry(uuid, &hdev->uuids, list) { |
180 | u8 i, val[16]; |
181 | |
182 | /* The Bluetooth UUID values are stored in big endian, |
183 | * but with reversed byte order. So convert them into |
184 | * the right order for the %pUb modifier. |
185 | */ |
186 | for (i = 0; i < 16; i++) |
187 | val[i] = uuid->uuid[15 - i]; |
188 | |
189 | seq_printf(m: f, fmt: "%pUb\n" , val); |
190 | } |
191 | hci_dev_unlock(hdev); |
192 | |
193 | return 0; |
194 | } |
195 | |
196 | DEFINE_SHOW_ATTRIBUTE(uuids); |
197 | |
198 | static int remote_oob_show(struct seq_file *f, void *ptr) |
199 | { |
200 | struct hci_dev *hdev = f->private; |
201 | struct oob_data *data; |
202 | |
203 | hci_dev_lock(hdev); |
204 | list_for_each_entry(data, &hdev->remote_oob_data, list) { |
205 | seq_printf(m: f, fmt: "%pMR (type %u) %u %*phN %*phN %*phN %*phN\n" , |
206 | &data->bdaddr, data->bdaddr_type, data->present, |
207 | 16, data->hash192, 16, data->rand192, |
208 | 16, data->hash256, 16, data->rand256); |
209 | } |
210 | hci_dev_unlock(hdev); |
211 | |
212 | return 0; |
213 | } |
214 | |
215 | DEFINE_SHOW_ATTRIBUTE(remote_oob); |
216 | |
217 | static int conn_info_min_age_set(void *data, u64 val) |
218 | { |
219 | struct hci_dev *hdev = data; |
220 | |
221 | hci_dev_lock(hdev); |
222 | if (val == 0 || val > hdev->conn_info_max_age) { |
223 | hci_dev_unlock(hdev); |
224 | return -EINVAL; |
225 | } |
226 | |
227 | hdev->conn_info_min_age = val; |
228 | hci_dev_unlock(hdev); |
229 | |
230 | return 0; |
231 | } |
232 | |
233 | static int conn_info_min_age_get(void *data, u64 *val) |
234 | { |
235 | struct hci_dev *hdev = data; |
236 | |
237 | hci_dev_lock(hdev); |
238 | *val = hdev->conn_info_min_age; |
239 | hci_dev_unlock(hdev); |
240 | |
241 | return 0; |
242 | } |
243 | |
244 | DEFINE_DEBUGFS_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, |
245 | conn_info_min_age_set, "%llu\n" ); |
246 | |
247 | static int conn_info_max_age_set(void *data, u64 val) |
248 | { |
249 | struct hci_dev *hdev = data; |
250 | |
251 | hci_dev_lock(hdev); |
252 | if (val == 0 || val < hdev->conn_info_min_age) { |
253 | hci_dev_unlock(hdev); |
254 | return -EINVAL; |
255 | } |
256 | |
257 | hdev->conn_info_max_age = val; |
258 | hci_dev_unlock(hdev); |
259 | |
260 | return 0; |
261 | } |
262 | |
263 | static int conn_info_max_age_get(void *data, u64 *val) |
264 | { |
265 | struct hci_dev *hdev = data; |
266 | |
267 | hci_dev_lock(hdev); |
268 | *val = hdev->conn_info_max_age; |
269 | hci_dev_unlock(hdev); |
270 | |
271 | return 0; |
272 | } |
273 | |
274 | DEFINE_DEBUGFS_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, |
275 | conn_info_max_age_set, "%llu\n" ); |
276 | |
277 | static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf, |
278 | size_t count, loff_t *ppos) |
279 | { |
280 | struct hci_dev *hdev = file->private_data; |
281 | char buf[3]; |
282 | |
283 | buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y' : 'N'; |
284 | buf[1] = '\n'; |
285 | buf[2] = '\0'; |
286 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
287 | } |
288 | |
289 | static const struct file_operations use_debug_keys_fops = { |
290 | .open = simple_open, |
291 | .read = use_debug_keys_read, |
292 | .llseek = default_llseek, |
293 | }; |
294 | |
295 | static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf, |
296 | size_t count, loff_t *ppos) |
297 | { |
298 | struct hci_dev *hdev = file->private_data; |
299 | char buf[3]; |
300 | |
301 | buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y' : 'N'; |
302 | buf[1] = '\n'; |
303 | buf[2] = '\0'; |
304 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
305 | } |
306 | |
307 | static const struct file_operations sc_only_mode_fops = { |
308 | .open = simple_open, |
309 | .read = sc_only_mode_read, |
310 | .llseek = default_llseek, |
311 | }; |
312 | |
313 | DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info); |
314 | DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info); |
315 | |
316 | void hci_debugfs_create_common(struct hci_dev *hdev) |
317 | { |
318 | debugfs_create_file(name: "features" , mode: 0444, parent: hdev->debugfs, data: hdev, |
319 | fops: &features_fops); |
320 | debugfs_create_u16(name: "manufacturer" , mode: 0444, parent: hdev->debugfs, |
321 | value: &hdev->manufacturer); |
322 | debugfs_create_u8(name: "hci_version" , mode: 0444, parent: hdev->debugfs, value: &hdev->hci_ver); |
323 | debugfs_create_u16(name: "hci_revision" , mode: 0444, parent: hdev->debugfs, value: &hdev->hci_rev); |
324 | debugfs_create_u8(name: "hardware_error" , mode: 0444, parent: hdev->debugfs, |
325 | value: &hdev->hw_error_code); |
326 | debugfs_create_file(name: "device_id" , mode: 0444, parent: hdev->debugfs, data: hdev, |
327 | fops: &device_id_fops); |
328 | |
329 | debugfs_create_file(name: "device_list" , mode: 0444, parent: hdev->debugfs, data: hdev, |
330 | fops: &device_list_fops); |
331 | debugfs_create_file(name: "blacklist" , mode: 0444, parent: hdev->debugfs, data: hdev, |
332 | fops: &blacklist_fops); |
333 | debugfs_create_file(name: "blocked_keys" , mode: 0444, parent: hdev->debugfs, data: hdev, |
334 | fops: &blocked_keys_fops); |
335 | debugfs_create_file(name: "uuids" , mode: 0444, parent: hdev->debugfs, data: hdev, fops: &uuids_fops); |
336 | debugfs_create_file(name: "remote_oob" , mode: 0400, parent: hdev->debugfs, data: hdev, |
337 | fops: &remote_oob_fops); |
338 | |
339 | debugfs_create_file(name: "conn_info_min_age" , mode: 0644, parent: hdev->debugfs, data: hdev, |
340 | fops: &conn_info_min_age_fops); |
341 | debugfs_create_file(name: "conn_info_max_age" , mode: 0644, parent: hdev->debugfs, data: hdev, |
342 | fops: &conn_info_max_age_fops); |
343 | |
344 | if (lmp_ssp_capable(hdev) || lmp_le_capable(hdev)) |
345 | debugfs_create_file(name: "use_debug_keys" , mode: 0444, parent: hdev->debugfs, |
346 | data: hdev, fops: &use_debug_keys_fops); |
347 | |
348 | if (lmp_sc_capable(hdev) || lmp_le_capable(hdev)) |
349 | debugfs_create_file(name: "sc_only_mode" , mode: 0444, parent: hdev->debugfs, |
350 | data: hdev, fops: &sc_only_mode_fops); |
351 | |
352 | if (hdev->hw_info) |
353 | debugfs_create_file(name: "hardware_info" , mode: 0444, parent: hdev->debugfs, |
354 | data: hdev, fops: &hardware_info_fops); |
355 | |
356 | if (hdev->fw_info) |
357 | debugfs_create_file(name: "firmware_info" , mode: 0444, parent: hdev->debugfs, |
358 | data: hdev, fops: &firmware_info_fops); |
359 | } |
360 | |
361 | static int inquiry_cache_show(struct seq_file *f, void *p) |
362 | { |
363 | struct hci_dev *hdev = f->private; |
364 | struct discovery_state *cache = &hdev->discovery; |
365 | struct inquiry_entry *e; |
366 | |
367 | hci_dev_lock(hdev); |
368 | |
369 | list_for_each_entry(e, &cache->all, all) { |
370 | struct inquiry_data *data = &e->data; |
371 | seq_printf(m: f, fmt: "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n" , |
372 | &data->bdaddr, |
373 | data->pscan_rep_mode, data->pscan_period_mode, |
374 | data->pscan_mode, data->dev_class[2], |
375 | data->dev_class[1], data->dev_class[0], |
376 | __le16_to_cpu(data->clock_offset), |
377 | data->rssi, data->ssp_mode, e->timestamp); |
378 | } |
379 | |
380 | hci_dev_unlock(hdev); |
381 | |
382 | return 0; |
383 | } |
384 | |
385 | DEFINE_SHOW_ATTRIBUTE(inquiry_cache); |
386 | |
387 | static int link_keys_show(struct seq_file *f, void *ptr) |
388 | { |
389 | struct hci_dev *hdev = f->private; |
390 | struct link_key *key; |
391 | |
392 | rcu_read_lock(); |
393 | list_for_each_entry_rcu(key, &hdev->link_keys, list) |
394 | seq_printf(m: f, fmt: "%pMR %u %*phN %u\n" , &key->bdaddr, key->type, |
395 | HCI_LINK_KEY_SIZE, key->val, key->pin_len); |
396 | rcu_read_unlock(); |
397 | |
398 | return 0; |
399 | } |
400 | |
401 | DEFINE_SHOW_ATTRIBUTE(link_keys); |
402 | |
403 | static int dev_class_show(struct seq_file *f, void *ptr) |
404 | { |
405 | struct hci_dev *hdev = f->private; |
406 | |
407 | hci_dev_lock(hdev); |
408 | seq_printf(m: f, fmt: "0x%.2x%.2x%.2x\n" , hdev->dev_class[2], |
409 | hdev->dev_class[1], hdev->dev_class[0]); |
410 | hci_dev_unlock(hdev); |
411 | |
412 | return 0; |
413 | } |
414 | |
415 | DEFINE_SHOW_ATTRIBUTE(dev_class); |
416 | |
417 | static int voice_setting_get(void *data, u64 *val) |
418 | { |
419 | struct hci_dev *hdev = data; |
420 | |
421 | hci_dev_lock(hdev); |
422 | *val = hdev->voice_setting; |
423 | hci_dev_unlock(hdev); |
424 | |
425 | return 0; |
426 | } |
427 | |
428 | DEFINE_DEBUGFS_ATTRIBUTE(voice_setting_fops, voice_setting_get, |
429 | NULL, "0x%4.4llx\n" ); |
430 | |
431 | static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf, |
432 | size_t count, loff_t *ppos) |
433 | { |
434 | struct hci_dev *hdev = file->private_data; |
435 | char buf[3]; |
436 | |
437 | buf[0] = hdev->ssp_debug_mode ? 'Y' : 'N'; |
438 | buf[1] = '\n'; |
439 | buf[2] = '\0'; |
440 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
441 | } |
442 | |
443 | static const struct file_operations ssp_debug_mode_fops = { |
444 | .open = simple_open, |
445 | .read = ssp_debug_mode_read, |
446 | .llseek = default_llseek, |
447 | }; |
448 | |
449 | static int auto_accept_delay_set(void *data, u64 val) |
450 | { |
451 | struct hci_dev *hdev = data; |
452 | |
453 | hci_dev_lock(hdev); |
454 | hdev->auto_accept_delay = val; |
455 | hci_dev_unlock(hdev); |
456 | |
457 | return 0; |
458 | } |
459 | |
460 | static int min_encrypt_key_size_set(void *data, u64 val) |
461 | { |
462 | struct hci_dev *hdev = data; |
463 | |
464 | if (val < 1 || val > 16) |
465 | return -EINVAL; |
466 | |
467 | hci_dev_lock(hdev); |
468 | hdev->min_enc_key_size = val; |
469 | hci_dev_unlock(hdev); |
470 | |
471 | return 0; |
472 | } |
473 | |
474 | static int min_encrypt_key_size_get(void *data, u64 *val) |
475 | { |
476 | struct hci_dev *hdev = data; |
477 | |
478 | hci_dev_lock(hdev); |
479 | *val = hdev->min_enc_key_size; |
480 | hci_dev_unlock(hdev); |
481 | |
482 | return 0; |
483 | } |
484 | |
485 | DEFINE_DEBUGFS_ATTRIBUTE(min_encrypt_key_size_fops, |
486 | min_encrypt_key_size_get, |
487 | min_encrypt_key_size_set, "%llu\n" ); |
488 | |
489 | static int auto_accept_delay_get(void *data, u64 *val) |
490 | { |
491 | struct hci_dev *hdev = data; |
492 | |
493 | hci_dev_lock(hdev); |
494 | *val = hdev->auto_accept_delay; |
495 | hci_dev_unlock(hdev); |
496 | |
497 | return 0; |
498 | } |
499 | |
500 | DEFINE_DEBUGFS_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, |
501 | auto_accept_delay_set, "%llu\n" ); |
502 | |
503 | static ssize_t force_bredr_smp_read(struct file *file, |
504 | char __user *user_buf, |
505 | size_t count, loff_t *ppos) |
506 | { |
507 | struct hci_dev *hdev = file->private_data; |
508 | char buf[3]; |
509 | |
510 | buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_BREDR_SMP) ? 'Y' : 'N'; |
511 | buf[1] = '\n'; |
512 | buf[2] = '\0'; |
513 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
514 | } |
515 | |
516 | static ssize_t force_bredr_smp_write(struct file *file, |
517 | const char __user *user_buf, |
518 | size_t count, loff_t *ppos) |
519 | { |
520 | struct hci_dev *hdev = file->private_data; |
521 | bool enable; |
522 | int err; |
523 | |
524 | err = kstrtobool_from_user(s: user_buf, count, res: &enable); |
525 | if (err) |
526 | return err; |
527 | |
528 | err = smp_force_bredr(hdev, enable); |
529 | if (err) |
530 | return err; |
531 | |
532 | return count; |
533 | } |
534 | |
535 | static const struct file_operations force_bredr_smp_fops = { |
536 | .open = simple_open, |
537 | .read = force_bredr_smp_read, |
538 | .write = force_bredr_smp_write, |
539 | .llseek = default_llseek, |
540 | }; |
541 | |
542 | static int idle_timeout_set(void *data, u64 val) |
543 | { |
544 | struct hci_dev *hdev = data; |
545 | |
546 | if (val != 0 && (val < 500 || val > 3600000)) |
547 | return -EINVAL; |
548 | |
549 | hci_dev_lock(hdev); |
550 | hdev->idle_timeout = val; |
551 | hci_dev_unlock(hdev); |
552 | |
553 | return 0; |
554 | } |
555 | |
556 | static int idle_timeout_get(void *data, u64 *val) |
557 | { |
558 | struct hci_dev *hdev = data; |
559 | |
560 | hci_dev_lock(hdev); |
561 | *val = hdev->idle_timeout; |
562 | hci_dev_unlock(hdev); |
563 | |
564 | return 0; |
565 | } |
566 | |
567 | DEFINE_DEBUGFS_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, |
568 | idle_timeout_set, "%llu\n" ); |
569 | |
570 | static int sniff_min_interval_set(void *data, u64 val) |
571 | { |
572 | struct hci_dev *hdev = data; |
573 | |
574 | hci_dev_lock(hdev); |
575 | if (val == 0 || val % 2 || val > hdev->sniff_max_interval) { |
576 | hci_dev_unlock(hdev); |
577 | return -EINVAL; |
578 | } |
579 | |
580 | hdev->sniff_min_interval = val; |
581 | hci_dev_unlock(hdev); |
582 | |
583 | return 0; |
584 | } |
585 | |
586 | static int sniff_min_interval_get(void *data, u64 *val) |
587 | { |
588 | struct hci_dev *hdev = data; |
589 | |
590 | hci_dev_lock(hdev); |
591 | *val = hdev->sniff_min_interval; |
592 | hci_dev_unlock(hdev); |
593 | |
594 | return 0; |
595 | } |
596 | |
597 | DEFINE_DEBUGFS_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, |
598 | sniff_min_interval_set, "%llu\n" ); |
599 | |
600 | static int sniff_max_interval_set(void *data, u64 val) |
601 | { |
602 | struct hci_dev *hdev = data; |
603 | |
604 | hci_dev_lock(hdev); |
605 | if (val == 0 || val % 2 || val < hdev->sniff_min_interval) { |
606 | hci_dev_unlock(hdev); |
607 | return -EINVAL; |
608 | } |
609 | |
610 | hdev->sniff_max_interval = val; |
611 | hci_dev_unlock(hdev); |
612 | |
613 | return 0; |
614 | } |
615 | |
616 | static int sniff_max_interval_get(void *data, u64 *val) |
617 | { |
618 | struct hci_dev *hdev = data; |
619 | |
620 | hci_dev_lock(hdev); |
621 | *val = hdev->sniff_max_interval; |
622 | hci_dev_unlock(hdev); |
623 | |
624 | return 0; |
625 | } |
626 | |
627 | DEFINE_DEBUGFS_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, |
628 | sniff_max_interval_set, "%llu\n" ); |
629 | |
630 | void hci_debugfs_create_bredr(struct hci_dev *hdev) |
631 | { |
632 | debugfs_create_file(name: "inquiry_cache" , mode: 0444, parent: hdev->debugfs, data: hdev, |
633 | fops: &inquiry_cache_fops); |
634 | debugfs_create_file(name: "link_keys" , mode: 0400, parent: hdev->debugfs, data: hdev, |
635 | fops: &link_keys_fops); |
636 | debugfs_create_file(name: "dev_class" , mode: 0444, parent: hdev->debugfs, data: hdev, |
637 | fops: &dev_class_fops); |
638 | debugfs_create_file(name: "voice_setting" , mode: 0444, parent: hdev->debugfs, data: hdev, |
639 | fops: &voice_setting_fops); |
640 | |
641 | /* If the controller does not support BR/EDR Secure Connections |
642 | * feature, then the BR/EDR SMP channel shall not be present. |
643 | * |
644 | * To test this with Bluetooth 4.0 controllers, create a debugfs |
645 | * switch that allows forcing BR/EDR SMP support and accepting |
646 | * cross-transport pairing on non-AES encrypted connections. |
647 | */ |
648 | if (!lmp_sc_capable(hdev)) |
649 | debugfs_create_file(name: "force_bredr_smp" , mode: 0644, parent: hdev->debugfs, |
650 | data: hdev, fops: &force_bredr_smp_fops); |
651 | |
652 | if (lmp_ssp_capable(hdev)) { |
653 | debugfs_create_file(name: "ssp_debug_mode" , mode: 0444, parent: hdev->debugfs, |
654 | data: hdev, fops: &ssp_debug_mode_fops); |
655 | debugfs_create_file(name: "min_encrypt_key_size" , mode: 0644, parent: hdev->debugfs, |
656 | data: hdev, fops: &min_encrypt_key_size_fops); |
657 | debugfs_create_file(name: "auto_accept_delay" , mode: 0644, parent: hdev->debugfs, |
658 | data: hdev, fops: &auto_accept_delay_fops); |
659 | } |
660 | |
661 | if (lmp_sniff_capable(hdev)) { |
662 | debugfs_create_file(name: "idle_timeout" , mode: 0644, parent: hdev->debugfs, |
663 | data: hdev, fops: &idle_timeout_fops); |
664 | debugfs_create_file(name: "sniff_min_interval" , mode: 0644, parent: hdev->debugfs, |
665 | data: hdev, fops: &sniff_min_interval_fops); |
666 | debugfs_create_file(name: "sniff_max_interval" , mode: 0644, parent: hdev->debugfs, |
667 | data: hdev, fops: &sniff_max_interval_fops); |
668 | } |
669 | } |
670 | |
671 | static int identity_show(struct seq_file *f, void *p) |
672 | { |
673 | struct hci_dev *hdev = f->private; |
674 | bdaddr_t addr; |
675 | u8 addr_type; |
676 | |
677 | hci_dev_lock(hdev); |
678 | |
679 | hci_copy_identity_address(hdev, bdaddr: &addr, bdaddr_type: &addr_type); |
680 | |
681 | seq_printf(m: f, fmt: "%pMR (type %u) %*phN %pMR\n" , &addr, addr_type, |
682 | 16, hdev->irk, &hdev->rpa); |
683 | |
684 | hci_dev_unlock(hdev); |
685 | |
686 | return 0; |
687 | } |
688 | |
689 | DEFINE_SHOW_ATTRIBUTE(identity); |
690 | |
691 | static int rpa_timeout_set(void *data, u64 val) |
692 | { |
693 | struct hci_dev *hdev = data; |
694 | |
695 | /* Require the RPA timeout to be at least 30 seconds and at most |
696 | * 24 hours. |
697 | */ |
698 | if (val < 30 || val > (60 * 60 * 24)) |
699 | return -EINVAL; |
700 | |
701 | hci_dev_lock(hdev); |
702 | hdev->rpa_timeout = val; |
703 | hci_dev_unlock(hdev); |
704 | |
705 | return 0; |
706 | } |
707 | |
708 | static int rpa_timeout_get(void *data, u64 *val) |
709 | { |
710 | struct hci_dev *hdev = data; |
711 | |
712 | hci_dev_lock(hdev); |
713 | *val = hdev->rpa_timeout; |
714 | hci_dev_unlock(hdev); |
715 | |
716 | return 0; |
717 | } |
718 | |
719 | DEFINE_DEBUGFS_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, |
720 | rpa_timeout_set, "%llu\n" ); |
721 | |
722 | static int random_address_show(struct seq_file *f, void *p) |
723 | { |
724 | struct hci_dev *hdev = f->private; |
725 | |
726 | hci_dev_lock(hdev); |
727 | seq_printf(m: f, fmt: "%pMR\n" , &hdev->random_addr); |
728 | hci_dev_unlock(hdev); |
729 | |
730 | return 0; |
731 | } |
732 | |
733 | DEFINE_SHOW_ATTRIBUTE(random_address); |
734 | |
735 | static int static_address_show(struct seq_file *f, void *p) |
736 | { |
737 | struct hci_dev *hdev = f->private; |
738 | |
739 | hci_dev_lock(hdev); |
740 | seq_printf(m: f, fmt: "%pMR\n" , &hdev->static_addr); |
741 | hci_dev_unlock(hdev); |
742 | |
743 | return 0; |
744 | } |
745 | |
746 | DEFINE_SHOW_ATTRIBUTE(static_address); |
747 | |
748 | static ssize_t force_static_address_read(struct file *file, |
749 | char __user *user_buf, |
750 | size_t count, loff_t *ppos) |
751 | { |
752 | struct hci_dev *hdev = file->private_data; |
753 | char buf[3]; |
754 | |
755 | buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y' : 'N'; |
756 | buf[1] = '\n'; |
757 | buf[2] = '\0'; |
758 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
759 | } |
760 | |
761 | static ssize_t force_static_address_write(struct file *file, |
762 | const char __user *user_buf, |
763 | size_t count, loff_t *ppos) |
764 | { |
765 | struct hci_dev *hdev = file->private_data; |
766 | bool enable; |
767 | int err; |
768 | |
769 | if (hdev_is_powered(hdev)) |
770 | return -EBUSY; |
771 | |
772 | err = kstrtobool_from_user(s: user_buf, count, res: &enable); |
773 | if (err) |
774 | return err; |
775 | |
776 | if (enable == hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR)) |
777 | return -EALREADY; |
778 | |
779 | hci_dev_change_flag(hdev, HCI_FORCE_STATIC_ADDR); |
780 | |
781 | return count; |
782 | } |
783 | |
784 | static const struct file_operations force_static_address_fops = { |
785 | .open = simple_open, |
786 | .read = force_static_address_read, |
787 | .write = force_static_address_write, |
788 | .llseek = default_llseek, |
789 | }; |
790 | |
791 | static int white_list_show(struct seq_file *f, void *ptr) |
792 | { |
793 | struct hci_dev *hdev = f->private; |
794 | struct bdaddr_list *b; |
795 | |
796 | hci_dev_lock(hdev); |
797 | list_for_each_entry(b, &hdev->le_accept_list, list) |
798 | seq_printf(m: f, fmt: "%pMR (type %u)\n" , &b->bdaddr, b->bdaddr_type); |
799 | hci_dev_unlock(hdev); |
800 | |
801 | return 0; |
802 | } |
803 | |
804 | DEFINE_SHOW_ATTRIBUTE(white_list); |
805 | |
806 | static int resolv_list_show(struct seq_file *f, void *ptr) |
807 | { |
808 | struct hci_dev *hdev = f->private; |
809 | struct bdaddr_list *b; |
810 | |
811 | hci_dev_lock(hdev); |
812 | list_for_each_entry(b, &hdev->le_resolv_list, list) |
813 | seq_printf(m: f, fmt: "%pMR (type %u)\n" , &b->bdaddr, b->bdaddr_type); |
814 | hci_dev_unlock(hdev); |
815 | |
816 | return 0; |
817 | } |
818 | |
819 | DEFINE_SHOW_ATTRIBUTE(resolv_list); |
820 | |
821 | static int identity_resolving_keys_show(struct seq_file *f, void *ptr) |
822 | { |
823 | struct hci_dev *hdev = f->private; |
824 | struct smp_irk *irk; |
825 | |
826 | rcu_read_lock(); |
827 | list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) { |
828 | seq_printf(m: f, fmt: "%pMR (type %u) %*phN %pMR\n" , |
829 | &irk->bdaddr, irk->addr_type, |
830 | 16, irk->val, &irk->rpa); |
831 | } |
832 | rcu_read_unlock(); |
833 | |
834 | return 0; |
835 | } |
836 | |
837 | DEFINE_SHOW_ATTRIBUTE(identity_resolving_keys); |
838 | |
839 | static int long_term_keys_show(struct seq_file *f, void *ptr) |
840 | { |
841 | struct hci_dev *hdev = f->private; |
842 | struct smp_ltk *ltk; |
843 | |
844 | rcu_read_lock(); |
845 | list_for_each_entry_rcu(ltk, &hdev->long_term_keys, list) |
846 | seq_printf(m: f, fmt: "%pMR (type %u) %u 0x%02x %u %.4x %.16llx %*phN\n" , |
847 | <k->bdaddr, ltk->bdaddr_type, ltk->authenticated, |
848 | ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv), |
849 | __le64_to_cpu(ltk->rand), 16, ltk->val); |
850 | rcu_read_unlock(); |
851 | |
852 | return 0; |
853 | } |
854 | |
855 | DEFINE_SHOW_ATTRIBUTE(long_term_keys); |
856 | |
857 | static int conn_min_interval_set(void *data, u64 val) |
858 | { |
859 | struct hci_dev *hdev = data; |
860 | |
861 | hci_dev_lock(hdev); |
862 | if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) { |
863 | hci_dev_unlock(hdev); |
864 | return -EINVAL; |
865 | } |
866 | |
867 | hdev->le_conn_min_interval = val; |
868 | hci_dev_unlock(hdev); |
869 | |
870 | return 0; |
871 | } |
872 | |
873 | static int conn_min_interval_get(void *data, u64 *val) |
874 | { |
875 | struct hci_dev *hdev = data; |
876 | |
877 | hci_dev_lock(hdev); |
878 | *val = hdev->le_conn_min_interval; |
879 | hci_dev_unlock(hdev); |
880 | |
881 | return 0; |
882 | } |
883 | |
884 | DEFINE_DEBUGFS_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, |
885 | conn_min_interval_set, "%llu\n" ); |
886 | |
887 | static int conn_max_interval_set(void *data, u64 val) |
888 | { |
889 | struct hci_dev *hdev = data; |
890 | |
891 | hci_dev_lock(hdev); |
892 | if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) { |
893 | hci_dev_unlock(hdev); |
894 | return -EINVAL; |
895 | } |
896 | |
897 | hdev->le_conn_max_interval = val; |
898 | hci_dev_unlock(hdev); |
899 | |
900 | return 0; |
901 | } |
902 | |
903 | static int conn_max_interval_get(void *data, u64 *val) |
904 | { |
905 | struct hci_dev *hdev = data; |
906 | |
907 | hci_dev_lock(hdev); |
908 | *val = hdev->le_conn_max_interval; |
909 | hci_dev_unlock(hdev); |
910 | |
911 | return 0; |
912 | } |
913 | |
914 | DEFINE_DEBUGFS_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, |
915 | conn_max_interval_set, "%llu\n" ); |
916 | |
917 | static int conn_latency_set(void *data, u64 val) |
918 | { |
919 | struct hci_dev *hdev = data; |
920 | |
921 | if (val > 0x01f3) |
922 | return -EINVAL; |
923 | |
924 | hci_dev_lock(hdev); |
925 | hdev->le_conn_latency = val; |
926 | hci_dev_unlock(hdev); |
927 | |
928 | return 0; |
929 | } |
930 | |
931 | static int conn_latency_get(void *data, u64 *val) |
932 | { |
933 | struct hci_dev *hdev = data; |
934 | |
935 | hci_dev_lock(hdev); |
936 | *val = hdev->le_conn_latency; |
937 | hci_dev_unlock(hdev); |
938 | |
939 | return 0; |
940 | } |
941 | |
942 | DEFINE_DEBUGFS_ATTRIBUTE(conn_latency_fops, conn_latency_get, |
943 | conn_latency_set, "%llu\n" ); |
944 | |
945 | static int supervision_timeout_set(void *data, u64 val) |
946 | { |
947 | struct hci_dev *hdev = data; |
948 | |
949 | if (val < 0x000a || val > 0x0c80) |
950 | return -EINVAL; |
951 | |
952 | hci_dev_lock(hdev); |
953 | hdev->le_supv_timeout = val; |
954 | hci_dev_unlock(hdev); |
955 | |
956 | return 0; |
957 | } |
958 | |
959 | static int supervision_timeout_get(void *data, u64 *val) |
960 | { |
961 | struct hci_dev *hdev = data; |
962 | |
963 | hci_dev_lock(hdev); |
964 | *val = hdev->le_supv_timeout; |
965 | hci_dev_unlock(hdev); |
966 | |
967 | return 0; |
968 | } |
969 | |
970 | DEFINE_DEBUGFS_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, |
971 | supervision_timeout_set, "%llu\n" ); |
972 | |
973 | static int adv_channel_map_set(void *data, u64 val) |
974 | { |
975 | struct hci_dev *hdev = data; |
976 | |
977 | if (val < 0x01 || val > 0x07) |
978 | return -EINVAL; |
979 | |
980 | hci_dev_lock(hdev); |
981 | hdev->le_adv_channel_map = val; |
982 | hci_dev_unlock(hdev); |
983 | |
984 | return 0; |
985 | } |
986 | |
987 | static int adv_channel_map_get(void *data, u64 *val) |
988 | { |
989 | struct hci_dev *hdev = data; |
990 | |
991 | hci_dev_lock(hdev); |
992 | *val = hdev->le_adv_channel_map; |
993 | hci_dev_unlock(hdev); |
994 | |
995 | return 0; |
996 | } |
997 | |
998 | DEFINE_DEBUGFS_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, |
999 | adv_channel_map_set, "%llu\n" ); |
1000 | |
1001 | static int adv_min_interval_set(void *data, u64 val) |
1002 | { |
1003 | struct hci_dev *hdev = data; |
1004 | |
1005 | hci_dev_lock(hdev); |
1006 | if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) { |
1007 | hci_dev_unlock(hdev); |
1008 | return -EINVAL; |
1009 | } |
1010 | |
1011 | hdev->le_adv_min_interval = val; |
1012 | hci_dev_unlock(hdev); |
1013 | |
1014 | return 0; |
1015 | } |
1016 | |
1017 | static int adv_min_interval_get(void *data, u64 *val) |
1018 | { |
1019 | struct hci_dev *hdev = data; |
1020 | |
1021 | hci_dev_lock(hdev); |
1022 | *val = hdev->le_adv_min_interval; |
1023 | hci_dev_unlock(hdev); |
1024 | |
1025 | return 0; |
1026 | } |
1027 | |
1028 | DEFINE_DEBUGFS_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, |
1029 | adv_min_interval_set, "%llu\n" ); |
1030 | |
1031 | static int adv_max_interval_set(void *data, u64 val) |
1032 | { |
1033 | struct hci_dev *hdev = data; |
1034 | |
1035 | hci_dev_lock(hdev); |
1036 | if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) { |
1037 | hci_dev_unlock(hdev); |
1038 | return -EINVAL; |
1039 | } |
1040 | |
1041 | hdev->le_adv_max_interval = val; |
1042 | hci_dev_unlock(hdev); |
1043 | |
1044 | return 0; |
1045 | } |
1046 | |
1047 | static int adv_max_interval_get(void *data, u64 *val) |
1048 | { |
1049 | struct hci_dev *hdev = data; |
1050 | |
1051 | hci_dev_lock(hdev); |
1052 | *val = hdev->le_adv_max_interval; |
1053 | hci_dev_unlock(hdev); |
1054 | |
1055 | return 0; |
1056 | } |
1057 | |
1058 | DEFINE_DEBUGFS_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, |
1059 | adv_max_interval_set, "%llu\n" ); |
1060 | |
1061 | static int min_key_size_set(void *data, u64 val) |
1062 | { |
1063 | struct hci_dev *hdev = data; |
1064 | |
1065 | hci_dev_lock(hdev); |
1066 | if (val > hdev->le_max_key_size || val < SMP_MIN_ENC_KEY_SIZE) { |
1067 | hci_dev_unlock(hdev); |
1068 | return -EINVAL; |
1069 | } |
1070 | |
1071 | hdev->le_min_key_size = val; |
1072 | hci_dev_unlock(hdev); |
1073 | |
1074 | return 0; |
1075 | } |
1076 | |
1077 | static int min_key_size_get(void *data, u64 *val) |
1078 | { |
1079 | struct hci_dev *hdev = data; |
1080 | |
1081 | hci_dev_lock(hdev); |
1082 | *val = hdev->le_min_key_size; |
1083 | hci_dev_unlock(hdev); |
1084 | |
1085 | return 0; |
1086 | } |
1087 | |
1088 | DEFINE_DEBUGFS_ATTRIBUTE(min_key_size_fops, min_key_size_get, |
1089 | min_key_size_set, "%llu\n" ); |
1090 | |
1091 | static int max_key_size_set(void *data, u64 val) |
1092 | { |
1093 | struct hci_dev *hdev = data; |
1094 | |
1095 | hci_dev_lock(hdev); |
1096 | if (val > SMP_MAX_ENC_KEY_SIZE || val < hdev->le_min_key_size) { |
1097 | hci_dev_unlock(hdev); |
1098 | return -EINVAL; |
1099 | } |
1100 | |
1101 | hdev->le_max_key_size = val; |
1102 | hci_dev_unlock(hdev); |
1103 | |
1104 | return 0; |
1105 | } |
1106 | |
1107 | static int max_key_size_get(void *data, u64 *val) |
1108 | { |
1109 | struct hci_dev *hdev = data; |
1110 | |
1111 | hci_dev_lock(hdev); |
1112 | *val = hdev->le_max_key_size; |
1113 | hci_dev_unlock(hdev); |
1114 | |
1115 | return 0; |
1116 | } |
1117 | |
1118 | DEFINE_DEBUGFS_ATTRIBUTE(max_key_size_fops, max_key_size_get, |
1119 | max_key_size_set, "%llu\n" ); |
1120 | |
1121 | static int auth_payload_timeout_set(void *data, u64 val) |
1122 | { |
1123 | struct hci_dev *hdev = data; |
1124 | |
1125 | if (val < 0x0001 || val > 0xffff) |
1126 | return -EINVAL; |
1127 | |
1128 | hci_dev_lock(hdev); |
1129 | hdev->auth_payload_timeout = val; |
1130 | hci_dev_unlock(hdev); |
1131 | |
1132 | return 0; |
1133 | } |
1134 | |
1135 | static int auth_payload_timeout_get(void *data, u64 *val) |
1136 | { |
1137 | struct hci_dev *hdev = data; |
1138 | |
1139 | hci_dev_lock(hdev); |
1140 | *val = hdev->auth_payload_timeout; |
1141 | hci_dev_unlock(hdev); |
1142 | |
1143 | return 0; |
1144 | } |
1145 | |
1146 | DEFINE_DEBUGFS_ATTRIBUTE(auth_payload_timeout_fops, |
1147 | auth_payload_timeout_get, |
1148 | auth_payload_timeout_set, "%llu\n" ); |
1149 | |
1150 | static ssize_t force_no_mitm_read(struct file *file, |
1151 | char __user *user_buf, |
1152 | size_t count, loff_t *ppos) |
1153 | { |
1154 | struct hci_dev *hdev = file->private_data; |
1155 | char buf[3]; |
1156 | |
1157 | buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM) ? 'Y' : 'N'; |
1158 | buf[1] = '\n'; |
1159 | buf[2] = '\0'; |
1160 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
1161 | } |
1162 | |
1163 | static ssize_t force_no_mitm_write(struct file *file, |
1164 | const char __user *user_buf, |
1165 | size_t count, loff_t *ppos) |
1166 | { |
1167 | struct hci_dev *hdev = file->private_data; |
1168 | char buf[32]; |
1169 | size_t buf_size = min(count, (sizeof(buf) - 1)); |
1170 | bool enable; |
1171 | |
1172 | if (copy_from_user(to: buf, from: user_buf, n: buf_size)) |
1173 | return -EFAULT; |
1174 | |
1175 | buf[buf_size] = '\0'; |
1176 | if (kstrtobool(s: buf, res: &enable)) |
1177 | return -EINVAL; |
1178 | |
1179 | if (enable == hci_dev_test_flag(hdev, HCI_FORCE_NO_MITM)) |
1180 | return -EALREADY; |
1181 | |
1182 | hci_dev_change_flag(hdev, HCI_FORCE_NO_MITM); |
1183 | |
1184 | return count; |
1185 | } |
1186 | |
1187 | static const struct file_operations force_no_mitm_fops = { |
1188 | .open = simple_open, |
1189 | .read = force_no_mitm_read, |
1190 | .write = force_no_mitm_write, |
1191 | .llseek = default_llseek, |
1192 | }; |
1193 | |
1194 | DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter, |
1195 | HCI_QUIRK_STRICT_DUPLICATE_FILTER); |
1196 | DEFINE_QUIRK_ATTRIBUTE(quirk_simultaneous_discovery, |
1197 | HCI_QUIRK_SIMULTANEOUS_DISCOVERY); |
1198 | |
1199 | void hci_debugfs_create_le(struct hci_dev *hdev) |
1200 | { |
1201 | debugfs_create_file(name: "identity" , mode: 0400, parent: hdev->debugfs, data: hdev, |
1202 | fops: &identity_fops); |
1203 | debugfs_create_file(name: "rpa_timeout" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1204 | fops: &rpa_timeout_fops); |
1205 | debugfs_create_file(name: "random_address" , mode: 0444, parent: hdev->debugfs, data: hdev, |
1206 | fops: &random_address_fops); |
1207 | debugfs_create_file(name: "static_address" , mode: 0444, parent: hdev->debugfs, data: hdev, |
1208 | fops: &static_address_fops); |
1209 | |
1210 | /* For controllers with a public address, provide a debug |
1211 | * option to force the usage of the configured static |
1212 | * address. By default the public address is used. |
1213 | */ |
1214 | if (bacmp(ba1: &hdev->bdaddr, BDADDR_ANY)) |
1215 | debugfs_create_file(name: "force_static_address" , mode: 0644, |
1216 | parent: hdev->debugfs, data: hdev, |
1217 | fops: &force_static_address_fops); |
1218 | |
1219 | debugfs_create_u8(name: "white_list_size" , mode: 0444, parent: hdev->debugfs, |
1220 | value: &hdev->le_accept_list_size); |
1221 | debugfs_create_file(name: "white_list" , mode: 0444, parent: hdev->debugfs, data: hdev, |
1222 | fops: &white_list_fops); |
1223 | debugfs_create_u8(name: "resolv_list_size" , mode: 0444, parent: hdev->debugfs, |
1224 | value: &hdev->le_resolv_list_size); |
1225 | debugfs_create_file(name: "resolv_list" , mode: 0444, parent: hdev->debugfs, data: hdev, |
1226 | fops: &resolv_list_fops); |
1227 | debugfs_create_file(name: "identity_resolving_keys" , mode: 0400, parent: hdev->debugfs, |
1228 | data: hdev, fops: &identity_resolving_keys_fops); |
1229 | debugfs_create_file(name: "long_term_keys" , mode: 0400, parent: hdev->debugfs, data: hdev, |
1230 | fops: &long_term_keys_fops); |
1231 | debugfs_create_file(name: "conn_min_interval" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1232 | fops: &conn_min_interval_fops); |
1233 | debugfs_create_file(name: "conn_max_interval" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1234 | fops: &conn_max_interval_fops); |
1235 | debugfs_create_file(name: "conn_latency" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1236 | fops: &conn_latency_fops); |
1237 | debugfs_create_file(name: "supervision_timeout" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1238 | fops: &supervision_timeout_fops); |
1239 | debugfs_create_file(name: "adv_channel_map" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1240 | fops: &adv_channel_map_fops); |
1241 | debugfs_create_file(name: "adv_min_interval" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1242 | fops: &adv_min_interval_fops); |
1243 | debugfs_create_file(name: "adv_max_interval" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1244 | fops: &adv_max_interval_fops); |
1245 | debugfs_create_u16(name: "discov_interleaved_timeout" , mode: 0644, parent: hdev->debugfs, |
1246 | value: &hdev->discov_interleaved_timeout); |
1247 | debugfs_create_file(name: "min_key_size" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1248 | fops: &min_key_size_fops); |
1249 | debugfs_create_file(name: "max_key_size" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1250 | fops: &max_key_size_fops); |
1251 | debugfs_create_file(name: "auth_payload_timeout" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1252 | fops: &auth_payload_timeout_fops); |
1253 | debugfs_create_file(name: "force_no_mitm" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1254 | fops: &force_no_mitm_fops); |
1255 | |
1256 | debugfs_create_file(name: "quirk_strict_duplicate_filter" , mode: 0644, |
1257 | parent: hdev->debugfs, data: hdev, |
1258 | fops: &quirk_strict_duplicate_filter_fops); |
1259 | debugfs_create_file(name: "quirk_simultaneous_discovery" , mode: 0644, |
1260 | parent: hdev->debugfs, data: hdev, |
1261 | fops: &quirk_simultaneous_discovery_fops); |
1262 | } |
1263 | |
1264 | void hci_debugfs_create_conn(struct hci_conn *conn) |
1265 | { |
1266 | struct hci_dev *hdev = conn->hdev; |
1267 | char name[6]; |
1268 | |
1269 | if (IS_ERR_OR_NULL(ptr: hdev->debugfs) || conn->debugfs) |
1270 | return; |
1271 | |
1272 | snprintf(buf: name, size: sizeof(name), fmt: "%u" , conn->handle); |
1273 | conn->debugfs = debugfs_create_dir(name, parent: hdev->debugfs); |
1274 | } |
1275 | |
1276 | static ssize_t dut_mode_read(struct file *file, char __user *user_buf, |
1277 | size_t count, loff_t *ppos) |
1278 | { |
1279 | struct hci_dev *hdev = file->private_data; |
1280 | char buf[3]; |
1281 | |
1282 | buf[0] = hci_dev_test_flag(hdev, HCI_DUT_MODE) ? 'Y' : 'N'; |
1283 | buf[1] = '\n'; |
1284 | buf[2] = '\0'; |
1285 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
1286 | } |
1287 | |
1288 | static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, |
1289 | size_t count, loff_t *ppos) |
1290 | { |
1291 | struct hci_dev *hdev = file->private_data; |
1292 | struct sk_buff *skb; |
1293 | bool enable; |
1294 | int err; |
1295 | |
1296 | if (!test_bit(HCI_UP, &hdev->flags)) |
1297 | return -ENETDOWN; |
1298 | |
1299 | err = kstrtobool_from_user(s: user_buf, count, res: &enable); |
1300 | if (err) |
1301 | return err; |
1302 | |
1303 | if (enable == hci_dev_test_flag(hdev, HCI_DUT_MODE)) |
1304 | return -EALREADY; |
1305 | |
1306 | hci_req_sync_lock(hdev); |
1307 | if (enable) |
1308 | skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, plen: 0, NULL, |
1309 | HCI_CMD_TIMEOUT); |
1310 | else |
1311 | skb = __hci_cmd_sync(hdev, HCI_OP_RESET, plen: 0, NULL, |
1312 | HCI_CMD_TIMEOUT); |
1313 | hci_req_sync_unlock(hdev); |
1314 | |
1315 | if (IS_ERR(ptr: skb)) |
1316 | return PTR_ERR(ptr: skb); |
1317 | |
1318 | kfree_skb(skb); |
1319 | |
1320 | hci_dev_change_flag(hdev, HCI_DUT_MODE); |
1321 | |
1322 | return count; |
1323 | } |
1324 | |
1325 | static const struct file_operations dut_mode_fops = { |
1326 | .open = simple_open, |
1327 | .read = dut_mode_read, |
1328 | .write = dut_mode_write, |
1329 | .llseek = default_llseek, |
1330 | }; |
1331 | |
1332 | static ssize_t vendor_diag_read(struct file *file, char __user *user_buf, |
1333 | size_t count, loff_t *ppos) |
1334 | { |
1335 | struct hci_dev *hdev = file->private_data; |
1336 | char buf[3]; |
1337 | |
1338 | buf[0] = hci_dev_test_flag(hdev, HCI_VENDOR_DIAG) ? 'Y' : 'N'; |
1339 | buf[1] = '\n'; |
1340 | buf[2] = '\0'; |
1341 | return simple_read_from_buffer(to: user_buf, count, ppos, from: buf, available: 2); |
1342 | } |
1343 | |
1344 | static ssize_t vendor_diag_write(struct file *file, const char __user *user_buf, |
1345 | size_t count, loff_t *ppos) |
1346 | { |
1347 | struct hci_dev *hdev = file->private_data; |
1348 | bool enable; |
1349 | int err; |
1350 | |
1351 | err = kstrtobool_from_user(s: user_buf, count, res: &enable); |
1352 | if (err) |
1353 | return err; |
1354 | |
1355 | /* When the diagnostic flags are not persistent and the transport |
1356 | * is not active or in user channel operation, then there is no need |
1357 | * for the vendor callback. Instead just store the desired value and |
1358 | * the setting will be programmed when the controller gets powered on. |
1359 | */ |
1360 | if (test_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks) && |
1361 | (!test_bit(HCI_RUNNING, &hdev->flags) || |
1362 | hci_dev_test_flag(hdev, HCI_USER_CHANNEL))) |
1363 | goto done; |
1364 | |
1365 | hci_req_sync_lock(hdev); |
1366 | err = hdev->set_diag(hdev, enable); |
1367 | hci_req_sync_unlock(hdev); |
1368 | |
1369 | if (err < 0) |
1370 | return err; |
1371 | |
1372 | done: |
1373 | if (enable) |
1374 | hci_dev_set_flag(hdev, HCI_VENDOR_DIAG); |
1375 | else |
1376 | hci_dev_clear_flag(hdev, HCI_VENDOR_DIAG); |
1377 | |
1378 | return count; |
1379 | } |
1380 | |
1381 | static const struct file_operations vendor_diag_fops = { |
1382 | .open = simple_open, |
1383 | .read = vendor_diag_read, |
1384 | .write = vendor_diag_write, |
1385 | .llseek = default_llseek, |
1386 | }; |
1387 | |
1388 | void hci_debugfs_create_basic(struct hci_dev *hdev) |
1389 | { |
1390 | debugfs_create_file(name: "dut_mode" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1391 | fops: &dut_mode_fops); |
1392 | |
1393 | if (hdev->set_diag) |
1394 | debugfs_create_file(name: "vendor_diag" , mode: 0644, parent: hdev->debugfs, data: hdev, |
1395 | fops: &vendor_diag_fops); |
1396 | } |
1397 | |