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