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