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