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Linux 4.11-rc6
[linux/fpc-iii.git] / net / bluetooth / hci_debugfs.c
blob63df63ebfb249a440a63137358529956bc616ffd
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) \
32 static 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 \
45 static 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 \
72 static 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) \
80 static 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 \
91 static int __name ## _open(struct inode *inode, struct file *file) \
92 { \
93 return single_open(file, __name ## _show, inode->i_private); \
94 } \
95 \
96 static const struct file_operations __name ## _fops = { \
97 .open = __name ## _open, \
98 .read = seq_read, \
99 .llseek = seq_lseek, \
100 .release = single_release, \
101 } \
102
103 static int features_show(struct seq_file *f, void *ptr)
104 {
105 struct hci_dev *hdev = f->private;
106 u8 p;
107
108 hci_dev_lock(hdev);
109 for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
110 seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
111 "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p,
112 hdev->features[p][0], hdev->features[p][1],
113 hdev->features[p][2], hdev->features[p][3],
114 hdev->features[p][4], hdev->features[p][5],
115 hdev->features[p][6], hdev->features[p][7]);
116 }
117 if (lmp_le_capable(hdev))
118 seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
119 "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n",
120 hdev->le_features[0], hdev->le_features[1],
121 hdev->le_features[2], hdev->le_features[3],
122 hdev->le_features[4], hdev->le_features[5],
123 hdev->le_features[6], hdev->le_features[7]);
124 hci_dev_unlock(hdev);
125
126 return 0;
127 }
128
129 static int features_open(struct inode *inode, struct file *file)
130 {
131 return single_open(file, features_show, inode->i_private);
132 }
133
134 static const struct file_operations features_fops = {
135 .open = features_open,
136 .read = seq_read,
137 .llseek = seq_lseek,
138 .release = single_release,
139 };
140
141 static int device_id_show(struct seq_file *f, void *ptr)
142 {
143 struct hci_dev *hdev = f->private;
144
145 hci_dev_lock(hdev);
146 seq_printf(f, "%4.4x:%4.4x:%4.4x:%4.4x\n", hdev->devid_source,
147 hdev->devid_vendor, hdev->devid_product, hdev->devid_version);
148 hci_dev_unlock(hdev);
149
150 return 0;
151 }
152
153 static int device_id_open(struct inode *inode, struct file *file)
154 {
155 return single_open(file, device_id_show, inode->i_private);
156 }
157
158 static const struct file_operations device_id_fops = {
159 .open = device_id_open,
160 .read = seq_read,
161 .llseek = seq_lseek,
162 .release = single_release,
163 };
164
165 static int device_list_show(struct seq_file *f, void *ptr)
166 {
167 struct hci_dev *hdev = f->private;
168 struct hci_conn_params *p;
169 struct bdaddr_list *b;
170
171 hci_dev_lock(hdev);
172 list_for_each_entry(b, &hdev->whitelist, list)
173 seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
174 list_for_each_entry(p, &hdev->le_conn_params, list) {
175 seq_printf(f, "%pMR (type %u) %u\n", &p->addr, p->addr_type,
176 p->auto_connect);
177 }
178 hci_dev_unlock(hdev);
179
180 return 0;
181 }
182
183 static int device_list_open(struct inode *inode, struct file *file)
184 {
185 return single_open(file, device_list_show, inode->i_private);
186 }
187
188 static const struct file_operations device_list_fops = {
189 .open = device_list_open,
190 .read = seq_read,
191 .llseek = seq_lseek,
192 .release = single_release,
193 };
194
195 static int blacklist_show(struct seq_file *f, void *p)
196 {
197 struct hci_dev *hdev = f->private;
198 struct bdaddr_list *b;
199
200 hci_dev_lock(hdev);
201 list_for_each_entry(b, &hdev->blacklist, list)
202 seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
203 hci_dev_unlock(hdev);
204
205 return 0;
206 }
207
208 static int blacklist_open(struct inode *inode, struct file *file)
209 {
210 return single_open(file, blacklist_show, inode->i_private);
211 }
212
213 static const struct file_operations blacklist_fops = {
214 .open = blacklist_open,
215 .read = seq_read,
216 .llseek = seq_lseek,
217 .release = single_release,
218 };
219
220 static int uuids_show(struct seq_file *f, void *p)
221 {
222 struct hci_dev *hdev = f->private;
223 struct bt_uuid *uuid;
224
225 hci_dev_lock(hdev);
226 list_for_each_entry(uuid, &hdev->uuids, list) {
227 u8 i, val[16];
228
229 /* The Bluetooth UUID values are stored in big endian,
230 * but with reversed byte order. So convert them into
231 * the right order for the %pUb modifier.
232 */
233 for (i = 0; i < 16; i++)
234 val[i] = uuid->uuid[15 - i];
235
236 seq_printf(f, "%pUb\n", val);
237 }
238 hci_dev_unlock(hdev);
239
240 return 0;
241 }
242
243 static int uuids_open(struct inode *inode, struct file *file)
244 {
245 return single_open(file, uuids_show, inode->i_private);
246 }
247
248 static const struct file_operations uuids_fops = {
249 .open = uuids_open,
250 .read = seq_read,
251 .llseek = seq_lseek,
252 .release = single_release,
253 };
254
255 static int remote_oob_show(struct seq_file *f, void *ptr)
256 {
257 struct hci_dev *hdev = f->private;
258 struct oob_data *data;
259
260 hci_dev_lock(hdev);
261 list_for_each_entry(data, &hdev->remote_oob_data, list) {
262 seq_printf(f, "%pMR (type %u) %u %*phN %*phN %*phN %*phN\n",
263 &data->bdaddr, data->bdaddr_type, data->present,
264 16, data->hash192, 16, data->rand192,
265 16, data->hash256, 16, data->rand256);
266 }
267 hci_dev_unlock(hdev);
268
269 return 0;
270 }
271
272 static int remote_oob_open(struct inode *inode, struct file *file)
273 {
274 return single_open(file, remote_oob_show, inode->i_private);
275 }
276
277 static const struct file_operations remote_oob_fops = {
278 .open = remote_oob_open,
279 .read = seq_read,
280 .llseek = seq_lseek,
281 .release = single_release,
282 };
283
284 static int conn_info_min_age_set(void *data, u64 val)
285 {
286 struct hci_dev *hdev = data;
287
288 if (val == 0 || val > hdev->conn_info_max_age)
289 return -EINVAL;
290
291 hci_dev_lock(hdev);
292 hdev->conn_info_min_age = val;
293 hci_dev_unlock(hdev);
294
295 return 0;
296 }
297
298 static int conn_info_min_age_get(void *data, u64 *val)
299 {
300 struct hci_dev *hdev = data;
301
302 hci_dev_lock(hdev);
303 *val = hdev->conn_info_min_age;
304 hci_dev_unlock(hdev);
305
306 return 0;
307 }
308
309 DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get,
310 conn_info_min_age_set, "%llu\n");
311
312 static int conn_info_max_age_set(void *data, u64 val)
313 {
314 struct hci_dev *hdev = data;
315
316 if (val == 0 || val < hdev->conn_info_min_age)
317 return -EINVAL;
318
319 hci_dev_lock(hdev);
320 hdev->conn_info_max_age = val;
321 hci_dev_unlock(hdev);
322
323 return 0;
324 }
325
326 static int conn_info_max_age_get(void *data, u64 *val)
327 {
328 struct hci_dev *hdev = data;
329
330 hci_dev_lock(hdev);
331 *val = hdev->conn_info_max_age;
332 hci_dev_unlock(hdev);
333
334 return 0;
335 }
336
337 DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get,
338 conn_info_max_age_set, "%llu\n");
339
340 static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf,
341 size_t count, loff_t *ppos)
342 {
343 struct hci_dev *hdev = file->private_data;
344 char buf[3];
345
346 buf[0] = hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS) ? 'Y': 'N';
347 buf[1] = '\n';
348 buf[2] = '\0';
349 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
350 }
351
352 static const struct file_operations use_debug_keys_fops = {
353 .open = simple_open,
354 .read = use_debug_keys_read,
355 .llseek = default_llseek,
356 };
357
358 static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf,
359 size_t count, loff_t *ppos)
360 {
361 struct hci_dev *hdev = file->private_data;
362 char buf[3];
363
364 buf[0] = hci_dev_test_flag(hdev, HCI_SC_ONLY) ? 'Y': 'N';
365 buf[1] = '\n';
366 buf[2] = '\0';
367 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
368 }
369
370 static const struct file_operations sc_only_mode_fops = {
371 .open = simple_open,
372 .read = sc_only_mode_read,
373 .llseek = default_llseek,
374 };
375
376 DEFINE_INFO_ATTRIBUTE(hardware_info, hw_info);
377 DEFINE_INFO_ATTRIBUTE(firmware_info, fw_info);
378
379 void hci_debugfs_create_common(struct hci_dev *hdev)
380 {
381 debugfs_create_file("features", 0444, hdev->debugfs, hdev,
382 &features_fops);
383 debugfs_create_u16("manufacturer", 0444, hdev->debugfs,
384 &hdev->manufacturer);
385 debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver);
386 debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
387 debugfs_create_u8("hardware_error", 0444, hdev->debugfs,
388 &hdev->hw_error_code);
389 debugfs_create_file("device_id", 0444, hdev->debugfs, hdev,
390 &device_id_fops);
391
392 debugfs_create_file("device_list", 0444, hdev->debugfs, hdev,
393 &device_list_fops);
394 debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
395 &blacklist_fops);
396 debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
397 debugfs_create_file("remote_oob", 0400, hdev->debugfs, hdev,
398 &remote_oob_fops);
399
400 debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev,
401 &conn_info_min_age_fops);
402 debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev,
403 &conn_info_max_age_fops);
404
405 if (lmp_ssp_capable(hdev) || lmp_le_capable(hdev))
406 debugfs_create_file("use_debug_keys", 0444, hdev->debugfs,
407 hdev, &use_debug_keys_fops);
408
409 if (lmp_sc_capable(hdev) || lmp_le_capable(hdev))
410 debugfs_create_file("sc_only_mode", 0444, hdev->debugfs,
411 hdev, &sc_only_mode_fops);
412
413 if (hdev->hw_info)
414 debugfs_create_file("hardware_info", 0444, hdev->debugfs,
415 hdev, &hardware_info_fops);
416
417 if (hdev->fw_info)
418 debugfs_create_file("firmware_info", 0444, hdev->debugfs,
419 hdev, &firmware_info_fops);
420 }
421
422 static int inquiry_cache_show(struct seq_file *f, void *p)
423 {
424 struct hci_dev *hdev = f->private;
425 struct discovery_state *cache = &hdev->discovery;
426 struct inquiry_entry *e;
427
428 hci_dev_lock(hdev);
429
430 list_for_each_entry(e, &cache->all, all) {
431 struct inquiry_data *data = &e->data;
432 seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
433 &data->bdaddr,
434 data->pscan_rep_mode, data->pscan_period_mode,
435 data->pscan_mode, data->dev_class[2],
436 data->dev_class[1], data->dev_class[0],
437 __le16_to_cpu(data->clock_offset),
438 data->rssi, data->ssp_mode, e->timestamp);
439 }
440
441 hci_dev_unlock(hdev);
442
443 return 0;
444 }
445
446 static int inquiry_cache_open(struct inode *inode, struct file *file)
447 {
448 return single_open(file, inquiry_cache_show, inode->i_private);
449 }
450
451 static const struct file_operations inquiry_cache_fops = {
452 .open = inquiry_cache_open,
453 .read = seq_read,
454 .llseek = seq_lseek,
455 .release = single_release,
456 };
457
458 static int link_keys_show(struct seq_file *f, void *ptr)
459 {
460 struct hci_dev *hdev = f->private;
461 struct link_key *key;
462
463 rcu_read_lock();
464 list_for_each_entry_rcu(key, &hdev->link_keys, list)
465 seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type,
466 HCI_LINK_KEY_SIZE, key->val, key->pin_len);
467 rcu_read_unlock();
468
469 return 0;
470 }
471
472 static int link_keys_open(struct inode *inode, struct file *file)
473 {
474 return single_open(file, link_keys_show, inode->i_private);
475 }
476
477 static const struct file_operations link_keys_fops = {
478 .open = link_keys_open,
479 .read = seq_read,
480 .llseek = seq_lseek,
481 .release = single_release,
482 };
483
484 static int dev_class_show(struct seq_file *f, void *ptr)
485 {
486 struct hci_dev *hdev = f->private;
487
488 hci_dev_lock(hdev);
489 seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2],
490 hdev->dev_class[1], hdev->dev_class[0]);
491 hci_dev_unlock(hdev);
492
493 return 0;
494 }
495
496 static int dev_class_open(struct inode *inode, struct file *file)
497 {
498 return single_open(file, dev_class_show, inode->i_private);
499 }
500
501 static const struct file_operations dev_class_fops = {
502 .open = dev_class_open,
503 .read = seq_read,
504 .llseek = seq_lseek,
505 .release = single_release,
506 };
507
508 static int voice_setting_get(void *data, u64 *val)
509 {
510 struct hci_dev *hdev = data;
511
512 hci_dev_lock(hdev);
513 *val = hdev->voice_setting;
514 hci_dev_unlock(hdev);
515
516 return 0;
517 }
518
519 DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
520 NULL, "0x%4.4llx\n");
521
522 static ssize_t ssp_debug_mode_read(struct file *file, char __user *user_buf,
523 size_t count, loff_t *ppos)
524 {
525 struct hci_dev *hdev = file->private_data;
526 char buf[3];
527
528 buf[0] = hdev->ssp_debug_mode ? 'Y': 'N';
529 buf[1] = '\n';
530 buf[2] = '\0';
531 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
532 }
533
534 static const struct file_operations ssp_debug_mode_fops = {
535 .open = simple_open,
536 .read = ssp_debug_mode_read,
537 .llseek = default_llseek,
538 };
539
540 static int auto_accept_delay_set(void *data, u64 val)
541 {
542 struct hci_dev *hdev = data;
543
544 hci_dev_lock(hdev);
545 hdev->auto_accept_delay = val;
546 hci_dev_unlock(hdev);
547
548 return 0;
549 }
550
551 static int auto_accept_delay_get(void *data, u64 *val)
552 {
553 struct hci_dev *hdev = data;
554
555 hci_dev_lock(hdev);
556 *val = hdev->auto_accept_delay;
557 hci_dev_unlock(hdev);
558
559 return 0;
560 }
561
562 DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
563 auto_accept_delay_set, "%llu\n");
564
565 static int idle_timeout_set(void *data, u64 val)
566 {
567 struct hci_dev *hdev = data;
568
569 if (val != 0 && (val < 500 || val > 3600000))
570 return -EINVAL;
571
572 hci_dev_lock(hdev);
573 hdev->idle_timeout = val;
574 hci_dev_unlock(hdev);
575
576 return 0;
577 }
578
579 static int idle_timeout_get(void *data, u64 *val)
580 {
581 struct hci_dev *hdev = data;
582
583 hci_dev_lock(hdev);
584 *val = hdev->idle_timeout;
585 hci_dev_unlock(hdev);
586
587 return 0;
588 }
589
590 DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
591 idle_timeout_set, "%llu\n");
592
593 static int sniff_min_interval_set(void *data, u64 val)
594 {
595 struct hci_dev *hdev = data;
596
597 if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
598 return -EINVAL;
599
600 hci_dev_lock(hdev);
601 hdev->sniff_min_interval = val;
602 hci_dev_unlock(hdev);
603
604 return 0;
605 }
606
607 static int sniff_min_interval_get(void *data, u64 *val)
608 {
609 struct hci_dev *hdev = data;
610
611 hci_dev_lock(hdev);
612 *val = hdev->sniff_min_interval;
613 hci_dev_unlock(hdev);
614
615 return 0;
616 }
617
618 DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get,
619 sniff_min_interval_set, "%llu\n");
620
621 static int sniff_max_interval_set(void *data, u64 val)
622 {
623 struct hci_dev *hdev = data;
624
625 if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
626 return -EINVAL;
627
628 hci_dev_lock(hdev);
629 hdev->sniff_max_interval = val;
630 hci_dev_unlock(hdev);
631
632 return 0;
633 }
634
635 static int sniff_max_interval_get(void *data, u64 *val)
636 {
637 struct hci_dev *hdev = data;
638
639 hci_dev_lock(hdev);
640 *val = hdev->sniff_max_interval;
641 hci_dev_unlock(hdev);
642
643 return 0;
644 }
645
646 DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
647 sniff_max_interval_set, "%llu\n");
648
649 void hci_debugfs_create_bredr(struct hci_dev *hdev)
650 {
651 debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, hdev,
652 &inquiry_cache_fops);
653 debugfs_create_file("link_keys", 0400, hdev->debugfs, hdev,
654 &link_keys_fops);
655 debugfs_create_file("dev_class", 0444, hdev->debugfs, hdev,
656 &dev_class_fops);
657 debugfs_create_file("voice_setting", 0444, hdev->debugfs, hdev,
658 &voice_setting_fops);
659
660 if (lmp_ssp_capable(hdev)) {
661 debugfs_create_file("ssp_debug_mode", 0444, hdev->debugfs,
662 hdev, &ssp_debug_mode_fops);
663 debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
664 hdev, &auto_accept_delay_fops);
665 }
666
667 if (lmp_sniff_capable(hdev)) {
668 debugfs_create_file("idle_timeout", 0644, hdev->debugfs,
669 hdev, &idle_timeout_fops);
670 debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs,
671 hdev, &sniff_min_interval_fops);
672 debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs,
673 hdev, &sniff_max_interval_fops);
674 }
675 }
676
677 static int identity_show(struct seq_file *f, void *p)
678 {
679 struct hci_dev *hdev = f->private;
680 bdaddr_t addr;
681 u8 addr_type;
682
683 hci_dev_lock(hdev);
684
685 hci_copy_identity_address(hdev, &addr, &addr_type);
686
687 seq_printf(f, "%pMR (type %u) %*phN %pMR\n", &addr, addr_type,
688 16, hdev->irk, &hdev->rpa);
689
690 hci_dev_unlock(hdev);
691
692 return 0;
693 }
694
695 static int identity_open(struct inode *inode, struct file *file)
696 {
697 return single_open(file, identity_show, inode->i_private);
698 }
699
700 static const struct file_operations identity_fops = {
701 .open = identity_open,
702 .read = seq_read,
703 .llseek = seq_lseek,
704 .release = single_release,
705 };
706
707 static int rpa_timeout_set(void *data, u64 val)
708 {
709 struct hci_dev *hdev = data;
710
711 /* Require the RPA timeout to be at least 30 seconds and at most
712 * 24 hours.
713 */
714 if (val < 30 || val > (60 * 60 * 24))
715 return -EINVAL;
716
717 hci_dev_lock(hdev);
718 hdev->rpa_timeout = val;
719 hci_dev_unlock(hdev);
720
721 return 0;
722 }
723
724 static int rpa_timeout_get(void *data, u64 *val)
725 {
726 struct hci_dev *hdev = data;
727
728 hci_dev_lock(hdev);
729 *val = hdev->rpa_timeout;
730 hci_dev_unlock(hdev);
731
732 return 0;
733 }
734
735 DEFINE_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get,
736 rpa_timeout_set, "%llu\n");
737
738 static int random_address_show(struct seq_file *f, void *p)
739 {
740 struct hci_dev *hdev = f->private;
741
742 hci_dev_lock(hdev);
743 seq_printf(f, "%pMR\n", &hdev->random_addr);
744 hci_dev_unlock(hdev);
745
746 return 0;
747 }
748
749 static int random_address_open(struct inode *inode, struct file *file)
750 {
751 return single_open(file, random_address_show, inode->i_private);
752 }
753
754 static const struct file_operations random_address_fops = {
755 .open = random_address_open,
756 .read = seq_read,
757 .llseek = seq_lseek,
758 .release = single_release,
759 };
760
761 static int static_address_show(struct seq_file *f, void *p)
762 {
763 struct hci_dev *hdev = f->private;
764
765 hci_dev_lock(hdev);
766 seq_printf(f, "%pMR\n", &hdev->static_addr);
767 hci_dev_unlock(hdev);
768
769 return 0;
770 }
771
772 static int static_address_open(struct inode *inode, struct file *file)
773 {
774 return single_open(file, static_address_show, inode->i_private);
775 }
776
777 static const struct file_operations static_address_fops = {
778 .open = static_address_open,
779 .read = seq_read,
780 .llseek = seq_lseek,
781 .release = single_release,
782 };
783
784 static ssize_t force_static_address_read(struct file *file,
785 char __user *user_buf,
786 size_t count, loff_t *ppos)
787 {
788 struct hci_dev *hdev = file->private_data;
789 char buf[3];
790
791 buf[0] = hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ? 'Y': 'N';
792 buf[1] = '\n';
793 buf[2] = '\0';
794 return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
795 }
796
797 static ssize_t force_static_address_write(struct file *file,
798 const char __user *user_buf,
799 size_t count, loff_t *ppos)
800 {
801 struct hci_dev *hdev = file->private_data;
802 char buf[32];
803 size_t buf_size = min(count, (sizeof(buf)-1));
804 bool enable;
805
806 if (test_bit(HCI_UP, &hdev->flags))
807 return -EBUSY;
808
809 if (copy_from_user(buf, user_buf, buf_size))
810 return -EFAULT;
811
812 buf[buf_size] = '\0';
813 if (strtobool(buf, &enable))
814 return -EINVAL;
815
816 if (enable == hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR))
817 return -EALREADY;
818
819 hci_dev_change_flag(hdev, HCI_FORCE_STATIC_ADDR);
820
821 return count;
822 }
823
824 static const struct file_operations force_static_address_fops = {
825 .open = simple_open,
826 .read = force_static_address_read,
827 .write = force_static_address_write,
828 .llseek = default_llseek,
829 };
830
831 static int white_list_show(struct seq_file *f, void *ptr)
832 {
833 struct hci_dev *hdev = f->private;
834 struct bdaddr_list *b;
835
836 hci_dev_lock(hdev);
837 list_for_each_entry(b, &hdev->le_white_list, list)
838 seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
839 hci_dev_unlock(hdev);
840
841 return 0;
842 }
843
844 static int white_list_open(struct inode *inode, struct file *file)
845 {
846 return single_open(file, white_list_show, inode->i_private);
847 }
848
849 static const struct file_operations white_list_fops = {
850 .open = white_list_open,
851 .read = seq_read,
852 .llseek = seq_lseek,
853 .release = single_release,
854 };
855
856 static int identity_resolving_keys_show(struct seq_file *f, void *ptr)
857 {
858 struct hci_dev *hdev = f->private;
859 struct smp_irk *irk;
860
861 rcu_read_lock();
862 list_for_each_entry_rcu(irk, &hdev->identity_resolving_keys, list) {
863 seq_printf(f, "%pMR (type %u) %*phN %pMR\n",
864 &irk->bdaddr, irk->addr_type,
865 16, irk->val, &irk->rpa);
866 }
867 rcu_read_unlock();
868
869 return 0;
870 }
871
872 static int identity_resolving_keys_open(struct inode *inode, struct file *file)
873 {
874 return single_open(file, identity_resolving_keys_show,
875 inode->i_private);
876 }
877
878 static const struct file_operations identity_resolving_keys_fops = {
879 .open = identity_resolving_keys_open,
880 .read = seq_read,
881 .llseek = seq_lseek,
882 .release = single_release,
883 };
884
885 static int long_term_keys_show(struct seq_file *f, void *ptr)
886 {
887 struct hci_dev *hdev = f->private;
888 struct smp_ltk *ltk;
889
890 rcu_read_lock();
891 list_for_each_entry_rcu(ltk, &hdev->long_term_keys, list)
892 seq_printf(f, "%pMR (type %u) %u 0x%02x %u %.4x %.16llx %*phN\n",
893 &ltk->bdaddr, ltk->bdaddr_type, ltk->authenticated,
894 ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv),
895 __le64_to_cpu(ltk->rand), 16, ltk->val);
896 rcu_read_unlock();
897
898 return 0;
899 }
900
901 static int long_term_keys_open(struct inode *inode, struct file *file)
902 {
903 return single_open(file, long_term_keys_show, inode->i_private);
904 }
905
906 static const struct file_operations long_term_keys_fops = {
907 .open = long_term_keys_open,
908 .read = seq_read,
909 .llseek = seq_lseek,
910 .release = single_release,
911 };
912
913 static int conn_min_interval_set(void *data, u64 val)
914 {
915 struct hci_dev *hdev = data;
916
917 if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval)
918 return -EINVAL;
919
920 hci_dev_lock(hdev);
921 hdev->le_conn_min_interval = val;
922 hci_dev_unlock(hdev);
923
924 return 0;
925 }
926
927 static int conn_min_interval_get(void *data, u64 *val)
928 {
929 struct hci_dev *hdev = data;
930
931 hci_dev_lock(hdev);
932 *val = hdev->le_conn_min_interval;
933 hci_dev_unlock(hdev);
934
935 return 0;
936 }
937
938 DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get,
939 conn_min_interval_set, "%llu\n");
940
941 static int conn_max_interval_set(void *data, u64 val)
942 {
943 struct hci_dev *hdev = data;
944
945 if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval)
946 return -EINVAL;
947
948 hci_dev_lock(hdev);
949 hdev->le_conn_max_interval = val;
950 hci_dev_unlock(hdev);
951
952 return 0;
953 }
954
955 static int conn_max_interval_get(void *data, u64 *val)
956 {
957 struct hci_dev *hdev = data;
958
959 hci_dev_lock(hdev);
960 *val = hdev->le_conn_max_interval;
961 hci_dev_unlock(hdev);
962
963 return 0;
964 }
965
966 DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get,
967 conn_max_interval_set, "%llu\n");
968
969 static int conn_latency_set(void *data, u64 val)
970 {
971 struct hci_dev *hdev = data;
972
973 if (val > 0x01f3)
974 return -EINVAL;
975
976 hci_dev_lock(hdev);
977 hdev->le_conn_latency = val;
978 hci_dev_unlock(hdev);
979
980 return 0;
981 }
982
983 static int conn_latency_get(void *data, u64 *val)
984 {
985 struct hci_dev *hdev = data;
986
987 hci_dev_lock(hdev);
988 *val = hdev->le_conn_latency;
989 hci_dev_unlock(hdev);
990
991 return 0;
992 }
993
994 DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get,
995 conn_latency_set, "%llu\n");
996
997 static int supervision_timeout_set(void *data, u64 val)
998 {
999 struct hci_dev *hdev = data;
1000
1001 if (val < 0x000a || val > 0x0c80)
1002 return -EINVAL;
1003
1004 hci_dev_lock(hdev);
1005 hdev->le_supv_timeout = val;
1006 hci_dev_unlock(hdev);
1007
1008 return 0;
1009 }
1010
1011 static int supervision_timeout_get(void *data, u64 *val)
1012 {
1013 struct hci_dev *hdev = data;
1014
1015 hci_dev_lock(hdev);
1016 *val = hdev->le_supv_timeout;
1017 hci_dev_unlock(hdev);
1018
1019 return 0;
1020 }
1021
1022 DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get,
1023 supervision_timeout_set, "%llu\n");
1024
1025 static int adv_channel_map_set(void *data, u64 val)
1026 {
1027 struct hci_dev *hdev = data;
1028
1029 if (val < 0x01 || val > 0x07)
1030 return -EINVAL;
1031
1032 hci_dev_lock(hdev);
1033 hdev->le_adv_channel_map = val;
1034 hci_dev_unlock(hdev);
1035
1036 return 0;
1037 }
1038
1039 static int adv_channel_map_get(void *data, u64 *val)
1040 {
1041 struct hci_dev *hdev = data;
1042
1043 hci_dev_lock(hdev);
1044 *val = hdev->le_adv_channel_map;
1045 hci_dev_unlock(hdev);
1046
1047 return 0;
1048 }
1049
1050 DEFINE_SIMPLE_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get,
1051 adv_channel_map_set, "%llu\n");
1052
1053 static int adv_min_interval_set(void *data, u64 val)
1054 {
1055 struct hci_dev *hdev = data;
1056
1057 if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval)
1058 return -EINVAL;
1059
1060 hci_dev_lock(hdev);
1061 hdev->le_adv_min_interval = val;
1062 hci_dev_unlock(hdev);
1063
1064 return 0;
1065 }
1066
1067 static int adv_min_interval_get(void *data, u64 *val)
1068 {
1069 struct hci_dev *hdev = data;
1070
1071 hci_dev_lock(hdev);
1072 *val = hdev->le_adv_min_interval;
1073 hci_dev_unlock(hdev);
1074
1075 return 0;
1076 }
1077
1078 DEFINE_SIMPLE_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get,
1079 adv_min_interval_set, "%llu\n");
1080
1081 static int adv_max_interval_set(void *data, u64 val)
1082 {
1083 struct hci_dev *hdev = data;
1084
1085 if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval)
1086 return -EINVAL;
1087
1088 hci_dev_lock(hdev);
1089 hdev->le_adv_max_interval = val;
1090 hci_dev_unlock(hdev);
1091
1092 return 0;
1093 }
1094
1095 static int adv_max_interval_get(void *data, u64 *val)
1096 {
1097 struct hci_dev *hdev = data;
1098
1099 hci_dev_lock(hdev);
1100 *val = hdev->le_adv_max_interval;
1101 hci_dev_unlock(hdev);
1102
1103 return 0;
1104 }
1105
1106 DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get,
1107 adv_max_interval_set, "%llu\n");
1108
1109 DEFINE_QUIRK_ATTRIBUTE(quirk_strict_duplicate_filter,
1110 HCI_QUIRK_STRICT_DUPLICATE_FILTER);
1111 DEFINE_QUIRK_ATTRIBUTE(quirk_simultaneous_discovery,
1112 HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
1113
1114 void hci_debugfs_create_le(struct hci_dev *hdev)
1115 {
1116 debugfs_create_file("identity", 0400, hdev->debugfs, hdev,
1117 &identity_fops);
1118 debugfs_create_file("rpa_timeout", 0644, hdev->debugfs, hdev,
1119 &rpa_timeout_fops);
1120 debugfs_create_file("random_address", 0444, hdev->debugfs, hdev,
1121 &random_address_fops);
1122 debugfs_create_file("static_address", 0444, hdev->debugfs, hdev,
1123 &static_address_fops);
1124
1125 /* For controllers with a public address, provide a debug
1126 * option to force the usage of the configured static
1127 * address. By default the public address is used.
1128 */
1129 if (bacmp(&hdev->bdaddr, BDADDR_ANY))
1130 debugfs_create_file("force_static_address", 0644,
1131 hdev->debugfs, hdev,
1132 &force_static_address_fops);
1133
1134 debugfs_create_u8("white_list_size", 0444, hdev->debugfs,
1135 &hdev->le_white_list_size);
1136 debugfs_create_file("white_list", 0444, hdev->debugfs, hdev,
1137 &white_list_fops);
1138 debugfs_create_file("identity_resolving_keys", 0400, hdev->debugfs,
1139 hdev, &identity_resolving_keys_fops);
1140 debugfs_create_file("long_term_keys", 0400, hdev->debugfs, hdev,
1141 &long_term_keys_fops);
1142 debugfs_create_file("conn_min_interval", 0644, hdev->debugfs, hdev,
1143 &conn_min_interval_fops);
1144 debugfs_create_file("conn_max_interval", 0644, hdev->debugfs, hdev,
1145 &conn_max_interval_fops);
1146 debugfs_create_file("conn_latency", 0644, hdev->debugfs, hdev,
1147 &conn_latency_fops);
1148 debugfs_create_file("supervision_timeout", 0644, hdev->debugfs, hdev,
1149 &supervision_timeout_fops);
1150 debugfs_create_file("adv_channel_map", 0644, hdev->debugfs, hdev,
1151 &adv_channel_map_fops);
1152 debugfs_create_file("adv_min_interval", 0644, hdev->debugfs, hdev,
1153 &adv_min_interval_fops);
1154 debugfs_create_file("adv_max_interval", 0644, hdev->debugfs, hdev,
1155 &adv_max_interval_fops);
1156 debugfs_create_u16("discov_interleaved_timeout", 0644, hdev->debugfs,
1157 &hdev->discov_interleaved_timeout);
1158
1159 debugfs_create_file("quirk_strict_duplicate_filter", 0644,
1160 hdev->debugfs, hdev,
1161 &quirk_strict_duplicate_filter_fops);
1162 debugfs_create_file("quirk_simultaneous_discovery", 0644,
1163 hdev->debugfs, hdev,
1164 &quirk_simultaneous_discovery_fops);
1165 }
1166
1167 void hci_debugfs_create_conn(struct hci_conn *conn)
1168 {
1169 struct hci_dev *hdev = conn->hdev;
1170 char name[6];
1171
1172 if (IS_ERR_OR_NULL(hdev->debugfs))
1173 return;
1174
1175 snprintf(name, sizeof(name), "%u", conn->handle);
1176 conn->debugfs = debugfs_create_dir(name, hdev->debugfs);
1177 }
Linux with added FPC-III support