summaryrefslogtreecommitdiffstats
path: root/hcid/device.c
blob: 7085f07863866fc0fab9868846e7c4d007f3c742 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2006-2007  Nokia Corporation
 *  Copyright (C) 2004-2007  Marcel Holtmann <marcel@holtmann.org>
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <stdarg.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/socket.h>

#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>

#include <glib.h>

#include <dbus/dbus.h>

#include "dbus-helper.h"

#include "hcid.h"
#include "sdpd.h"

#include "logging.h"
#include "textfile.h"
#include "oui.h"

#include "device.h"

#define MAX_DEVICES 16

struct hci_peer {
	struct timeval lastseen;
	struct timeval lastused;

	bdaddr_t bdaddr;
	uint32_t class;
	int8_t   rssi;
	uint8_t  data[240];
	uint8_t  name[248];

	uint8_t  pscan_rep_mode;
	uint8_t  pscan_period_mode;
	uint8_t  pscan_mode;
	uint16_t clock_offset;

	struct hci_peer *next;
};

struct hci_conn {
	bdaddr_t bdaddr;
	uint16_t handle;

	struct hci_conn *next;
};

struct hci_dev {
	int ignore;

	bdaddr_t bdaddr;
	uint8_t  features[8];
	uint8_t  lmp_ver;
	uint16_t lmp_subver;
	uint16_t hci_rev;
	uint16_t manufacturer;

	uint8_t  ssp_mode;
	uint8_t  name[248];
	uint8_t  class[3];

	struct hci_peer *peers;
	struct hci_conn *conns;
};

static struct hci_dev devices[MAX_DEVICES];

#define ASSERT_DEV_ID { if (dev_id >= MAX_DEVICES) return -ERANGE; }

void init_adapters(void)
{
	int i;

	for (i = 0; i < MAX_DEVICES; i++)
		memset(devices + i, 0, sizeof(struct hci_dev));
}

static int device_read_bdaddr(uint16_t dev_id, bdaddr_t *bdaddr)
{
	int dd;

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	if (hci_read_bd_addr(dd, bdaddr, 2000) < 0) {
		int err = errno;
		error("Can't read address for hci%d: %s (%d)",
					dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return -err;
	}

	hci_close_dev(dd);

	return 0;
}

int add_adapter(uint16_t dev_id)
{
	struct hci_dev *dev;
	struct hci_dev_info di;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	if (hci_devinfo(dev_id, &di) < 0) {
		dev->ignore = 1;
		return -errno;
	}

	if (hci_test_bit(HCI_RAW, &di.flags)) {
		info("Device hci%d is using raw mode", dev_id);
		dev->ignore = 1;
	}

	if (bacmp(&di.bdaddr, BDADDR_ANY))
		bacpy(&dev->bdaddr, &di.bdaddr);
	else {
		int err = device_read_bdaddr(dev_id, &dev->bdaddr);
		if (err < 0)
			return err;
	}
	memcpy(dev->features, di.features, 8);

	info("Device hci%d has been added", dev_id);

	return 0;
}

int remove_adapter(uint16_t dev_id)
{
	struct hci_dev *dev;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	memset(dev, 0, sizeof(struct hci_dev));

	info("Device hci%d has been removed", dev_id);

	return 0;
}

static inline uint8_t get_inquiry_mode(struct hci_dev *dev)
{
	if (dev->features[6] & LMP_EXT_INQ)
		return 2;

	if (dev->features[3] & LMP_RSSI_INQ)
		return 1;

	if (dev->manufacturer == 11 &&
			dev->hci_rev == 0x00 && dev->lmp_subver == 0x0757)
		return 1;

	if (dev->manufacturer == 15) {
		if (dev->hci_rev == 0x03 && dev->lmp_subver == 0x6963)
			return 1;
		if (dev->hci_rev == 0x09 && dev->lmp_subver == 0x6963)
			return 1;
		if (dev->hci_rev == 0x00 && dev->lmp_subver == 0x6965)
			return 1;
	}

	if (dev->manufacturer == 31 &&
			dev->hci_rev == 0x2005 && dev->lmp_subver == 0x1805)
		return 1;

	return 0;
}

static void update_ext_inquiry_response(int dd, struct hci_dev *dev)
{
	uint8_t fec = 0, data[240];

	if (!(dev->features[6] & LMP_EXT_INQ))
		return;

	memset(data, 0, sizeof(data));

	if (dev->ssp_mode > 0)
		create_ext_inquiry_response((char *) dev->name, data);

	if (hci_write_ext_inquiry_response(dd, fec, data, 2000) < 0)
		error("Can't write extended inquiry response: %s (%d)",
						strerror(errno), errno);
}

int start_adapter(uint16_t dev_id)
{
	struct hci_dev *dev;
	struct hci_version ver;
	uint8_t features[8], inqmode;
	uint8_t events[8] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00 };
	char name[249];
	int dd, err;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	if (dev->ignore)
		return 0;

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	if (hci_read_local_version(dd, &ver, 1000) < 0) {
		int err = errno;
		error("Can't read version info for hci%d: %s (%d)",
					dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return -err;
	}

	dev->hci_rev = ver.hci_rev;
	dev->lmp_ver = ver.lmp_ver;
	dev->lmp_subver = ver.lmp_subver;
	dev->manufacturer = ver.manufacturer;

	if (hci_read_local_features(dd, features, 1000) < 0) {
		err = errno;
		error("Can't read features for hci%d: %s (%d)",
					dev_id, strerror(err), err);
		hci_close_dev(dd);
		return -err;
	}

	memcpy(dev->features, features, 8);

	if (hci_read_class_of_dev(dd, dev->class, 1000) < 0) {
		err = errno;
		error("Can't read class of device on hci%d: %s (%d)",
						dev_id, strerror(err), err);
		hci_close_dev(dd);
		return -err;
	}

	if (hci_read_local_name(dd, sizeof(name), name, 2000) < 0) {
		err = errno;
		error("Can't read local name on hci%d: %s (%d)",
						dev_id, strerror(err), err);
		hci_close_dev(dd);
		return -err;
	}

	memcpy(dev->name, name, 248);

	if (!(features[6] & LMP_SIMPLE_PAIR))
		goto setup;

	if (hci_read_simple_pairing_mode(dd, &dev->ssp_mode, 1000) < 0) {
		err = errno;
		error("Can't read simple pairing mode on hci%d: %s (%d)",
						dev_id, strerror(err), err);
		hci_close_dev(dd);
		return -err;
	}

setup:
	if (ver.hci_rev > 1) {
		if (features[5] & LMP_SNIFF_SUBR)
			events[5] |= 0x20;

		if (features[5] & LMP_PAUSE_ENC)
			events[5] |= 0x80;

		if (features[6] & LMP_EXT_INQ)
			events[5] |= 0x40;

		if (features[6] & LMP_NFLUSH_PKTS)
			events[7] |= 0x01;
			
		if (features[7] & LMP_LSTO)
			events[6] |= 0x80;

		if (features[6] & LMP_SIMPLE_PAIR) {
			events[6] |= 0x01;	/* IO Capability Request */
			events[6] |= 0x02;	/* IO Capability Response */
			events[6] |= 0x04;	/* User Confirmation Request */
			events[6] |= 0x08;	/* User Passkey Request */
			events[6] |= 0x10;	/* Remote OOB Data Request */
			events[6] |= 0x20;	/* Simple Pairing Complete */
			events[7] |= 0x04;	/* User Passkey Notification */
			events[7] |= 0x08;	/* Keypress Notification */
			events[7] |= 0x10;	/* Remote Host Supported Features Notification */
		}

		hci_send_cmd(dd, OGF_HOST_CTL, OCF_SET_EVENT_MASK,
						sizeof(events), events);
	}

	if (read_local_name(&dev->bdaddr, name) == 0) {
		memcpy(dev->name, name, 248);
		hci_write_local_name(dd, name, 5000);
        }

	update_ext_inquiry_response(dd, dev);

	inqmode = get_inquiry_mode(dev);
	if (inqmode < 1)
		goto done;

	if (hci_write_inquiry_mode(dd, inqmode, 1000) < 0) {
		int err = errno;
		error("Can't write inquiry mode for hci%d: %s (%d)",
						dev_id, strerror(errno), err);
		hci_close_dev(dd);
		return -err;
	}

done:
	hci_close_dev(dd);

	info("Device hci%d has been activated", dev_id);

	return 0;
}

int stop_adapter(uint16_t dev_id)
{
	ASSERT_DEV_ID;

	info("Device hci%d has been disabled", dev_id);

	return 0;
}

int update_adapter(uint16_t dev_id)
{
	struct hci_dev *dev;
	int dd;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	if (dev->ignore)
		return 0;

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	update_ext_inquiry_response(dd, dev);

	hci_close_dev(dd);

	return 0;
}

int get_device_address(uint16_t dev_id, char *address, size_t size)
{
	struct hci_dev *dev;

	ASSERT_DEV_ID;

	if (size < 18)
		return -ENOBUFS;

	dev = &devices[dev_id];

	return ba2str(&dev->bdaddr, address);
}

int get_device_class(uint16_t dev_id, uint8_t *cls)
{
	struct hci_dev *dev;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];
	memcpy(cls, dev->class, 3);

	return 0;
}

int set_device_class(uint16_t dev_id, uint8_t *cls)
{
	struct hci_dev *dev;

	ASSERT_DEV_ID;
	dev = &devices[dev_id];
	memcpy(dev->class, cls, 3);

	return 0;
}

int get_device_version(uint16_t dev_id, char *version, size_t size)
{
	struct hci_dev *dev;
	char edr[7], *tmp;
	int err;

	ASSERT_DEV_ID;

	if (size < 14)
		return -ENOBUFS;

	dev = &devices[dev_id];

	if ((dev->lmp_ver == 0x03 || dev->lmp_ver == 0x04) &&
			(dev->features[3] & (LMP_EDR_ACL_2M | LMP_EDR_ACL_3M)))
		sprintf(edr, " + EDR");
	else
		edr[0] = '\0';

	tmp = lmp_vertostr(dev->lmp_ver);

	if (strlen(tmp) == 0)
		err = snprintf(version, size, "not assigned");
	else
		err = snprintf(version, size, "Bluetooth %s%s", tmp, edr);

	bt_free(tmp);

	return err;
}

static int digi_revision(uint16_t dev_id, char *revision, size_t size)
{
	struct hci_request rq;
	unsigned char req[] = { 0x07 };
	unsigned char buf[102];
	int dd;

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	memset(&rq, 0, sizeof(rq));
	rq.ogf    = OGF_VENDOR_CMD;
	rq.ocf    = 0x000e;
	rq.cparam = req;
	rq.clen   = sizeof(req);
	rq.rparam = &buf;
	rq.rlen   = sizeof(buf);

	if (hci_send_req(dd, &rq, 2000) < 0) {
		int err = errno;
		error("Can't read revision for hci%d: %s (%d)",
					dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return -err;
	}

	hci_close_dev(dd);

	return snprintf(revision, size, "%s", buf + 1);
}

int get_device_revision(uint16_t dev_id, char *revision, size_t size)
{
	struct hci_dev *dev;
	int err;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	switch (dev->manufacturer) {
	case 10:
		err = snprintf(revision, size, "Build %d", dev->lmp_subver);
		break;
	case 12:
		err = digi_revision(dev_id, revision, size);
		break;
	case 15:
		err = snprintf(revision, size, "%d.%d / %d",
				dev->hci_rev & 0xff,
				dev->lmp_subver >> 8, dev->lmp_subver & 0xff);
		break;
	default:
		err = snprintf(revision, size, "0x%02x", dev->lmp_subver);
		break;
	}

	return err;
}

int get_device_manufacturer(uint16_t dev_id, char *manufacturer, size_t size)
{
	char *tmp;

	ASSERT_DEV_ID;

	tmp = bt_compidtostr(devices[dev_id].manufacturer);

	return snprintf(manufacturer, size, "%s", tmp);
}

int get_device_company(uint16_t dev_id, char *company, size_t size)
{
	char *tmp, oui[9];
	int err;

	ASSERT_DEV_ID;

	ba2oui(&devices[dev_id].bdaddr, oui);
	tmp = ouitocomp(oui);

	err = snprintf(company, size, "%s", tmp);

	free(tmp);

	return err;
}

int set_simple_pairing_mode(uint16_t dev_id, uint8_t mode)
{
	struct hci_dev *dev;
	int dd;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	dev->ssp_mode = mode;

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	update_ext_inquiry_response(dd, dev);

	hci_close_dev(dd);

	return 0;
}

int get_device_name(uint16_t dev_id, char *name, size_t size)
{
	char tmp[249];
	int dd;

	ASSERT_DEV_ID;

	memset(tmp, 0, sizeof(tmp));

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	if (hci_read_local_name(dd, sizeof(tmp), tmp, 2000) < 0) {
		int err = errno;
		error("Can't read name for hci%d: %s (%d)",
					dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return -err;
	}

	hci_close_dev(dd);

	memcpy(devices[dev_id].name, tmp, 248);

	return snprintf(name, size, "%s", tmp);
}

int set_device_name(uint16_t dev_id, const char *name)
{
	struct hci_dev *dev;
	int dd;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Can't open device hci%d",
					dev_id, strerror(errno), errno);
		return -errno;
	}

	if (hci_write_local_name(dd, name, 5000) < 0) {
		int err = errno;
		error("Can't write name for hci%d: %s (%d)",
					dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return -err;
	}

	memcpy(dev->name, name, 248);

	update_ext_inquiry_response(dd, dev);

	hci_close_dev(dd);

	return 0;
}

int get_device_alias(uint16_t dev_id, const bdaddr_t *bdaddr, char *alias, size_t size)
{
	char filename[PATH_MAX + 1], addr[18], *tmp;
	int err;

	ASSERT_DEV_ID;

	ba2str(&devices[dev_id].bdaddr, addr);
	create_name(filename, PATH_MAX, STORAGEDIR, addr, "aliases");

	ba2str(bdaddr, addr);

	tmp = textfile_get(filename, addr);
	if (!tmp)
		return -ENXIO;

	err = snprintf(alias, size, "%s", tmp);

	free(tmp);

	return err;
}

int set_device_alias(uint16_t dev_id, const bdaddr_t *bdaddr, const char *alias)
{
	char filename[PATH_MAX + 1], addr[18];

	ASSERT_DEV_ID;

	ba2str(&devices[dev_id].bdaddr, addr);
	create_name(filename, PATH_MAX, STORAGEDIR, addr, "aliases");

	create_file(filename, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);

	ba2str(bdaddr, addr);

	return textfile_put(filename, addr, alias);
}

int get_encryption_key_size(uint16_t dev_id, const bdaddr_t *baddr)
{
	struct hci_dev *dev;
	int size;

	ASSERT_DEV_ID;

	dev = &devices[dev_id];

	switch (dev->manufacturer) {
	default:
		size = -ENOENT;
		break;
	}

	return size;
}

static DBusConnection *connection = NULL;

static GSList *device_list = NULL;

gboolean device_init(DBusConnection *conn)
{
	connection = dbus_connection_ref(conn);
	if (connection == NULL)
		return FALSE;

	return TRUE;
}

static void device_destroy(struct device_data *device)
{
	debug("Removing device %s", device->path);

	dbus_connection_destroy_object_path(connection, device->path);
}

void device_cleanup(void)
{
	g_slist_foreach(device_list, (GFunc) device_destroy, NULL);
	g_slist_free(device_list);

	if (connection == NULL)
		return;

	dbus_connection_unref(connection);
}

void device_foreach(GFunc func, gpointer user_data)
{
	g_slist_foreach(device_list, func, user_data);
}

static void device_free(struct device_data *device)
{
	g_free(device->path);
	g_free(device);
}

static void device_unregister(DBusConnection *conn, void *user_data)
{
	struct device_data *device = user_data;

	device_list = g_slist_remove(device_list, device);

	device_free(device);
}

struct device_data *device_create(const char *adapter, const char *address)
{
	struct device_data *device;

	device = g_try_malloc0(sizeof(struct device_data));
	if (device == NULL)
		return NULL;

	device->path = g_strdup_printf("/device/%s_%s", adapter, address);
	g_strdelimit(device->path, ":", '_');

	debug("Creating device %s", device->path);

	if (dbus_connection_create_object_path(connection, device->path,
					device, device_unregister) == FALSE) {
		device_free(device);
		return NULL;
	}

	device_list = g_slist_append(device_list, device);

	return device;
}

void device_remove(const char *path)
{
}