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Merge tag 'ktest-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
[linux.git] / net / bluetooth / hci_debugfs.c
CommitLineData
60c5f5fb
MH		 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
18f81241 29#include "smp.h"
60c5f5fb
MH		 30#include "hci_debugfs.h"
31
b55d1abf
JP		 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; \
b55d1abf 51 bool enable; \
3bf5e97d 52 int err; \
b55d1abf
JP		 53 \
54 if (test_bit(HCI_UP, &hdev->flags)) \
55 return -EBUSY; \
56 \
3bf5e97d
AS		 57 err = kstrtobool_from_user(user_buf, count, &enable); \
58 if (err) \
59 return err; \
b55d1abf
JP		 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
5177a838
MH		 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 \
22b371cb
AS		 88DEFINE_SHOW_ATTRIBUTE(__name)
89
40ce72b1
MH		 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);
8a950794
AS		 96 for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++)
97 seq_printf(f, "%2u: %8ph\n", p, hdev->features[p]);
40ce72b1 98 if (lmp_le_capable(hdev))
8a950794 99 seq_printf(f, "LE: %8ph\n", hdev->le_features);
40ce72b1
MH		 100 hci_dev_unlock(hdev);
101
102 return 0;
103}
104
22b371cb 105DEFINE_SHOW_ATTRIBUTE(features);
40ce72b1 106
c3370de6
MH		 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
22b371cb 119DEFINE_SHOW_ATTRIBUTE(device_id);
c3370de6 120
40ce72b1
MH		 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->whitelist, 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
22b371cb 139DEFINE_SHOW_ATTRIBUTE(device_list);
40ce72b1
MH		 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->blacklist, 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
22b371cb 154DEFINE_SHOW_ATTRIBUTE(blacklist);
40ce72b1 155
600a8749
AM		 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
40ce72b1
MH		 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
22b371cb 194DEFINE_SHOW_ATTRIBUTE(uuids);
40ce72b1 195
6858bcd0
MH		 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,
b880ab86 206 16, data->hash256, 16, data->rand256);
6858bcd0
MH		 207 }
208 hci_dev_unlock(hdev);
209
210 return 0;
211}
212
22b371cb 213DEFINE_SHOW_ATTRIBUTE(remote_oob);
6858bcd0 214
40ce72b1
MH		 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_SIMPLE_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_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
269 conn_info_max_age_set, "%llu\n");
270
0886aea6
MH		 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
d7a5a11d 277 buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y': 'N';
0886aea6
MH		 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
cb0d2fae
MH		 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
d7a5a11d 295 buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y': 'N';
cb0d2fae
MH		 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
5177a838
MH		 307DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
308DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info);
309
60c5f5fb
MH		 310void hci_debugfs_create_common(struct hci_dev *hdev)
311{
40ce72b1
MH		 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);
5789f37c
MH		 318 debugfs_create_u8("hardware_error", 0444, hdev->debugfs,
319 &hdev->hw_error_code);
c3370de6
MH		 320 debugfs_create_file("device_id", 0444, hdev->debugfs, hdev,
321 &device_id_fops);
5789f37c 322
40ce72b1
MH		 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);
600a8749
AM		 327 debugfs_create_file("blocked_keys", 0444, hdev->debugfs, hdev,
328 &blocked_keys_fops);
40ce72b1 329 debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
6858bcd0
MH		 330 debugfs_create_file("remote_oob", 0400, hdev->debugfs, hdev,
331 &remote_oob_fops);
40ce72b1
MH		 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);
cb0d2fae 337
0886aea6
MH		 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
cb0d2fae
MH		 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);
5177a838
MH		 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);
60c5f5fb
MH		 353}
354
71c3b60e
MH		 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
22b371cb 379DEFINE_SHOW_ATTRIBUTE(inquiry_cache);
71c3b60e
MH		 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
22b371cb 395DEFINE_SHOW_ATTRIBUTE(link_keys);
71c3b60e
MH		 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
22b371cb 409DEFINE_SHOW_ATTRIBUTE(dev_class);
71c3b60e
MH		 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_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
423 NULL, "0x%4.4llx\n");
424
6e07231a
MH		 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
71c3b60e
MH		 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
58a96fc3
MH		 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_SIMPLE_ATTRIBUTE(min_encrypt_key_size_fops,
480 min_encrypt_key_size_get,
481 min_encrypt_key_size_set, "%llu\n");
482
71c3b60e
MH		 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_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
495 auto_accept_delay_set, "%llu\n");
496
82493316
CC		 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
71c3b60e
MH		 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_SIMPLE_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_SIMPLE_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_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
618 sniff_max_interval_set, "%llu\n");
619
60c5f5fb
MH		 620void hci_debugfs_create_bredr(struct hci_dev *hdev)
621{
71c3b60e
MH		 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
82493316
CC		 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
6e07231a
MH		 642 if (lmp_ssp_capable(hdev)) {
643 debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs,
644 hdev, &ssp_debug_mode_fops);
58a96fc3
MH		 645 debugfs_create_file("min_encrypt_key_size", 0644, hdev->debugfs,
646 hdev, &min_encrypt_key_size_fops);
71c3b60e
MH		 647 debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
648 hdev, &auto_accept_delay_fops);
6e07231a 649 }
71c3b60e
MH		 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 }
60c5f5fb
MH		 659}
660
3a5c82b7
MH		 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
22b371cb 679DEFINE_SHOW_ATTRIBUTE(identity);
3a5c82b7
MH		 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_SIMPLE_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
22b371cb 723DEFINE_SHOW_ATTRIBUTE(random_address);
3a5c82b7
MH		 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
22b371cb 736DEFINE_SHOW_ATTRIBUTE(static_address);
3a5c82b7
MH		 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
b7cb93e5 745 buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y': 'N';
3a5c82b7
MH		 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;
3a5c82b7 756 bool enable;
3bf5e97d 757 int err;
3a5c82b7
MH		 758
759 if (test_bit(HCI_UP, &hdev->flags))
760 return -EBUSY;
761
3bf5e97d
AS		 762 err = kstrtobool_from_user(user_buf, count, &enable);
763 if (err)
764 return err;
3a5c82b7 765
b7cb93e5 766 if (enable == hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR))
3a5c82b7
MH		 767 return -EALREADY;
768
b7cb93e5 769 hci_dev_change_flag(hdev, HCI_FORCE_STATIC_ADDR);
3a5c82b7
MH		 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_white_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
22b371cb 794DEFINE_SHOW_ATTRIBUTE(white_list);
3a5c82b7 795
cfdb0c2d
AN		 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
3a5c82b7
MH		 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
22b371cb 827DEFINE_SHOW_ATTRIBUTE(identity_resolving_keys);
3a5c82b7
MH		 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 &ltk->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
22b371cb 845DEFINE_SHOW_ATTRIBUTE(long_term_keys);
3a5c82b7
MH		 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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_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_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
1041 adv_max_interval_set, "%llu\n");
1042
18f81241
MH		 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_SIMPLE_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_SIMPLE_ATTRIBUTE(max_key_size_fops, max_key_size_get,
1097 max_key_size_set, "%llu\n");
1098
302975cb
SRK		 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_SIMPLE_ATTRIBUTE(auth_payload_timeout_fops,
1125 auth_payload_timeout_get,
1126 auth_payload_timeout_set, "%llu\n");
1127
c2aa30db
AP		 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
b55d1abf
JP		 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
60c5f5fb
MH		 1177void hci_debugfs_create_le(struct hci_dev *hdev)
1178{
3a5c82b7
MH		 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_white_list_size);
1199 debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
1200 &white_list_fops);
cfdb0c2d
AN		 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);
3a5c82b7
MH		 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);
18f81241
MH		 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);
302975cb
SRK		 1229 debugfs_create_file("auth_payload_timeout", 0644, hdev->debugfs, hdev,
1230 &auth_payload_timeout_fops);
c2aa30db
AP		 1231 debugfs_create_file("force_no_mitm", 0644, hdev->debugfs, hdev,
1232 &force_no_mitm_fops);
b55d1abf
JP		 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);
60c5f5fb 1240}
23b9ceb7
MH		 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}
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