summaryrefslogtreecommitdiffstats
path: root/src/dbus-hci.c
blob: 6591908356357099487546cfdadd66b46d499668 (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
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2006-2007  Nokia Corporation
 *  Copyright (C) 2004-2009  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

#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>

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

#include <glib.h>
#include <dbus/dbus.h>
#include <gdbus.h>

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

#include "hcid.h"
#include "manager.h"
#include "adapter.h"
#include "device.h"
#include "error.h"
#include "glib-helper.h"
#include "dbus-common.h"
#include "agent.h"
#include "storage.h"
#include "dbus-hci.h"

static DBusConnection *connection = NULL;

static gboolean get_adapter_and_device(bdaddr_t *src, bdaddr_t *dst,
					struct btd_adapter **adapter,
					struct btd_device **device,
					gboolean create)
{
	char peer_addr[18];

	*adapter = manager_find_adapter(src);
	if (!*adapter) {
		error("Unable to find matching adapter");
		return FALSE;
	}

	ba2str(dst, peer_addr);

	if (create)
		*device = adapter_get_device(connection, *adapter, peer_addr);
	else
		*device = adapter_find_device(*adapter, peer_addr);

	if (create && !*device) {
		error("Unable to get device object!");
		return FALSE;
	}

	return TRUE;
}

const char *class_to_icon(uint32_t class)
{
	switch ((class & 0x1f00) >> 8) {
	case 0x01:
		return "computer";
	case 0x02:
		switch ((class & 0xfc) >> 2) {
		case 0x01:
		case 0x02:
		case 0x03:
		case 0x05:
			return "phone";
		case 0x04:
			return "modem";
		}
		break;
	case 0x03:
		return "network-wireless";
	case 0x04:
		switch ((class & 0xfc) >> 2) {
		case 0x01:
		case 0x02:
			return "audio-card";	/* Headset */
		case 0x06:
			return "audio-card";	/* Headphone */
		default:
			return "audio-card";	/* Other audio device */
		}
		break;
	case 0x05:
		switch ((class & 0xc0) >> 6) {
		case 0x00:
			switch ((class & 0x1e) >> 2) {
			case 0x01:
			case 0x02:
				return "input-gaming";
			}
			break;
		case 0x01:
			return "input-keyboard";
		case 0x02:
			switch ((class & 0x1e) >> 2) {
			case 0x05:
				return "input-tablet";
			default:
				return "input-mouse";
			}
		}
		break;
	case 0x06:
		if (class & 0x80)
			return "printer";
		if (class & 0x20)
			return "camera-photo";
		break;
	}

	return NULL;
}

/*****************************************************************
 *
 *  Section reserved to HCI commands confirmation handling and low
 *  level events(eg: device attached/dettached.
 *
 *****************************************************************/

static void pincode_cb(struct agent *agent, DBusError *err, const char *pincode,
			struct btd_device *device)
{
	struct btd_adapter *adapter = device_get_adapter(device);
	pin_code_reply_cp pr;
	bdaddr_t sba, dba;
	size_t len;
	int dev;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	dev = hci_open_dev(dev_id);
	if (dev < 0) {
		error("hci_open_dev(%d): %s (%d)", dev_id,
				strerror(errno), errno);
		return;
	}

	adapter_get_address(adapter, &sba);
	device_get_address(device, &dba);

	if (err) {
		hci_send_cmd(dev, OGF_LINK_CTL,
				OCF_PIN_CODE_NEG_REPLY, 6, &dba);
		goto done;
	}

	len = strlen(pincode);

	set_pin_length(&sba, len);

	memset(&pr, 0, sizeof(pr));
	bacpy(&pr.bdaddr, &dba);
	memcpy(pr.pin_code, pincode, len);
	pr.pin_len = len;
	hci_send_cmd(dev, OGF_LINK_CTL, OCF_PIN_CODE_REPLY,
						PIN_CODE_REPLY_CP_SIZE, &pr);

done:
	hci_close_dev(dev);
}

int hcid_dbus_request_pin(int dev, bdaddr_t *sba, struct hci_conn_info *ci)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (!get_adapter_and_device(sba, &ci->bdaddr, &adapter, &device, TRUE))
		return -ENODEV;

	/* Check if the adapter is not pairable and if there isn't a bonding in
	 * progress */
	if (!adapter_is_pairable(adapter) && !device_is_bonding(device, NULL))
		return -EPERM;

	return device_request_authentication(device, AUTH_TYPE_PINCODE, 0,
								pincode_cb);
}

static void confirm_cb(struct agent *agent, DBusError *err, void *user_data)
{
	struct btd_device *device = user_data;
	struct btd_adapter *adapter = device_get_adapter(device);
	user_confirm_reply_cp cp;
	int dd;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Unable to open hci%d", dev_id);
		return;
	}

	memset(&cp, 0, sizeof(cp));
	device_get_address(device, &cp.bdaddr);

	if (err)
		hci_send_cmd(dd, OGF_LINK_CTL, OCF_USER_CONFIRM_NEG_REPLY,
					USER_CONFIRM_REPLY_CP_SIZE, &cp);
	else
		hci_send_cmd(dd, OGF_LINK_CTL, OCF_USER_CONFIRM_REPLY,
					USER_CONFIRM_REPLY_CP_SIZE, &cp);

	hci_close_dev(dd);
}

static void passkey_cb(struct agent *agent, DBusError *err, uint32_t passkey,
			void *user_data)
{
	struct btd_device *device = user_data;
	struct btd_adapter *adapter = device_get_adapter(device);
	user_passkey_reply_cp cp;
	bdaddr_t dba;
	int dd;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("Unable to open hci%d", dev_id);
		return;
	}

	device_get_address(device, &dba);

	memset(&cp, 0, sizeof(cp));
	bacpy(&cp.bdaddr, &dba);
	cp.passkey = passkey;

	if (err)
		hci_send_cmd(dd, OGF_LINK_CTL,
				OCF_USER_PASSKEY_NEG_REPLY, 6, &dba);
	else
		hci_send_cmd(dd, OGF_LINK_CTL, OCF_USER_PASSKEY_REPLY,
					USER_PASSKEY_REPLY_CP_SIZE, &cp);

	hci_close_dev(dd);
}

static int get_auth_requirements(bdaddr_t *local, bdaddr_t *remote,
							uint8_t *auth)
{
	struct hci_auth_info_req req;
	char addr[18];
	int err, dd, dev_id;

	ba2str(local, addr);

	dev_id = hci_devid(addr);
	if (dev_id < 0)
		return dev_id;

	dd = hci_open_dev(dev_id);
	if (dd < 0)
		return dd;

	memset(&req, 0, sizeof(req));
	bacpy(&req.bdaddr, remote);

	err = ioctl(dd, HCIGETAUTHINFO, (unsigned long) &req);
	if (err < 0) {
		debug("HCIGETAUTHINFO failed: %s (%d)",
					strerror(errno), errno);
		hci_close_dev(dd);
		return err;
	}

	hci_close_dev(dd);

	if (auth)
		*auth = req.type;

	return 0;
}

int hcid_dbus_user_confirm(bdaddr_t *sba, bdaddr_t *dba, uint32_t passkey)
{
	struct btd_adapter *adapter;
	struct btd_device *device;
	uint8_t remcap, remauth, type;
	uint16_t dev_id;

	if (!get_adapter_and_device(sba, dba, &adapter, &device, TRUE))
		return -ENODEV;

	dev_id = adapter_get_dev_id(adapter);

	if (get_auth_requirements(sba, dba, &type) < 0) {
		int dd;

		dd = hci_open_dev(dev_id);
		if (dd < 0) {
			error("Unable to open hci%d", dev_id);
			return -1;
		}

		hci_send_cmd(dd, OGF_LINK_CTL,
					OCF_USER_CONFIRM_NEG_REPLY, 6, dba);

		hci_close_dev(dd);

		return 0;
	}

	debug("confirm authentication requirement is 0x%02x", type);

	remcap = device_get_cap(device);
	remauth = device_get_auth(device);

	debug("remote IO capabilities are 0x%02x", remcap);
	debug("remote authentication requirement is 0x%02x", remauth);

	/* If no side requires MITM protection; auto-accept */
	if (!(remauth & 0x01) &&
			(type == 0xff || !(type & 0x01) || remcap == 0x03)) {
		int dd;

		dd = hci_open_dev(dev_id);
		if (dd < 0) {
			error("Unable to open hci%d", dev_id);
			return -1;
		}

		hci_send_cmd(dd, OGF_LINK_CTL,
					OCF_USER_CONFIRM_REPLY, 6, dba);

		hci_close_dev(dd);

		debug("auto accept of confirmation");

		return device_request_authentication(device,
						AUTH_TYPE_AUTO, 0, NULL);
	}

	return device_request_authentication(device, AUTH_TYPE_CONFIRM,
							passkey, confirm_cb);
}

int hcid_dbus_user_passkey(bdaddr_t *sba, bdaddr_t *dba)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (!get_adapter_and_device(sba, dba, &adapter, &device, TRUE))
		return -ENODEV;

	return device_request_authentication(device, AUTH_TYPE_PASSKEY, 0,
								passkey_cb);
}

int hcid_dbus_user_notify(bdaddr_t *sba, bdaddr_t *dba, uint32_t passkey)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (!get_adapter_and_device(sba, dba, &adapter, &device, TRUE))
		return -ENODEV;

	return device_request_authentication(device, AUTH_TYPE_NOTIFY,
								passkey, NULL);
}

void hcid_dbus_bonding_process_complete(bdaddr_t *local, bdaddr_t *peer,
								uint8_t status)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	debug("hcid_dbus_bonding_process_complete: status=%02x", status);

	if (!get_adapter_and_device(local, peer, &adapter, &device, TRUE))
		return;

	if (!device_is_authenticating(device)) {
		/* This means that there was no pending PIN or SSP token
		 * request from the controller, i.e. this is not a new
		 * pairing */
		debug("hcid_dbus_bonding_process_complete: no pending auth request");
		return;
	}

	/* If this is a new pairing send the appropriate reply and signal for
	 * it and proceed with service discovery */
	device_bonding_complete(device, status);
}

void hcid_dbus_simple_pairing_complete(bdaddr_t *local, bdaddr_t *peer,
					uint8_t status)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	debug("hcid_dbus_simple_pairing_complete: status=%02x", status);

	if (!get_adapter_and_device(local, peer, &adapter, &device, TRUE))
		return;

	device_simple_pairing_complete(device, status);
}

void hcid_dbus_inquiry_start(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	int state;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("Unable to find matching adapter");
		return;
	}

	state = adapter_get_state(adapter);
	state |= STD_INQUIRY;
	adapter_set_state(adapter, state);
	/*
	 * Cancel pending remote name request and clean the device list
	 * when inquiry is supported in periodic inquiry idle state.
	 */
	if (adapter_get_state(adapter) & PERIODIC_INQUIRY)
		pending_remote_name_cancel(adapter);

	/* Disable name resolution for non D-Bus clients */
	if (!adapter_has_discov_sessions(adapter)) {
		state = adapter_get_state(adapter);
		state &= ~RESOLVE_NAME;
		adapter_set_state(adapter, state);
	}
}

static int found_device_req_name(struct btd_adapter *adapter)
{
	struct hci_request rq;
	evt_cmd_status rp;
	remote_name_req_cp cp;
	struct remote_dev_info *dev, match;
	int dd, req_sent = 0;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	memset(&match, 0, sizeof(struct remote_dev_info));
	bacpy(&match.bdaddr, BDADDR_ANY);
	match.name_status = NAME_REQUIRED;

	dev = adapter_search_found_devices(adapter, &match);
	if (!dev)
		return -ENODATA;

	dd = hci_open_dev(dev_id);
	if (dd < 0)
		return -errno;

	memset(&rq, 0, sizeof(rq));
	rq.ogf    = OGF_LINK_CTL;
	rq.ocf    = OCF_REMOTE_NAME_REQ;
	rq.cparam = &cp;
	rq.clen   = REMOTE_NAME_REQ_CP_SIZE;
	rq.rparam = &rp;
	rq.rlen   = EVT_CMD_STATUS_SIZE;
	rq.event  = EVT_CMD_STATUS;

	/* send at least one request or return failed if the list is empty */
	do {
		/* flag to indicate the current remote name requested */
		dev->name_status = NAME_REQUESTED;

		memset(&rp, 0, sizeof(rp));
		memset(&cp, 0, sizeof(cp));
		bacpy(&cp.bdaddr, &dev->bdaddr);
		cp.pscan_rep_mode = 0x02;

		if (hci_send_req(dd, &rq, HCI_REQ_TIMEOUT) < 0)
			error("Unable to send HCI remote name req: %s (%d)",
						strerror(errno), errno);

		if (!rp.status) {
			req_sent = 1;
			break;
		}

		error("Remote name request failed with status 0x%02x",
								rp.status);

		/* if failed, request the next element */
		/* remove the element from the list */
		adapter_remove_found_device(adapter, &dev->bdaddr);

		/* get the next element */
		dev = adapter_search_found_devices(adapter, &match);
	} while (dev);

	hci_close_dev(dd);

	if (!req_sent)
		return -ENODATA;

	return 0;
}

void hcid_dbus_inquiry_complete(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	int state;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("Unable to find matching adapter");
		return;
	}

	/*
	 * The following scenarios can happen:
	 * 1. standard inquiry: always send discovery completed signal
	 * 2. standard inquiry + name resolving: send discovery completed
	 *    after name resolving
	 * 3. periodic inquiry: skip discovery completed signal
	 * 4. periodic inquiry + standard inquiry: always send discovery
	 *    completed signal
	 *
	 * Keep in mind that non D-Bus requests can arrive.
	 */
	if (found_device_req_name(adapter) == 0)
		return;

	/* reset the discover type to be able to handle D-Bus and non D-Bus
	 * requests */
	state = adapter_get_state(adapter);
	state &= ~STD_INQUIRY;
	state &= ~PERIODIC_INQUIRY;
	adapter_set_state(adapter, state);
}

void hcid_dbus_periodic_inquiry_start(bdaddr_t *local, uint8_t status)
{
	struct btd_adapter *adapter;
	int state;

	/* Don't send the signal if the cmd failed */
	if (status)
		return;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	state = adapter_get_state(adapter);
	state |= PERIODIC_INQUIRY;
	adapter_set_state(adapter, state);
}

void hcid_dbus_periodic_inquiry_exit(bdaddr_t *local, uint8_t status)
{
	struct btd_adapter *adapter;
	int state;

	/* Don't send the signal if the cmd failed */
	if (status)
		return;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	/* reset the discover type to be able to handle D-Bus and non D-Bus
	 * requests */
	state = adapter_get_state(adapter);
	state &= ~PERIODIC_INQUIRY;
	adapter_set_state(adapter, state);
}

static char *extract_eir_name(uint8_t *data, uint8_t *type)
{
	if (!data || !type)
		return NULL;

	if (data[0] == 0)
		return NULL;

	*type = data[1];

	switch (*type) {
	case 0x08:
	case 0x09:
		return strndup((char *) (data + 2), data[0] - 1);
	}

	return NULL;
}

static void append_dict_valist(DBusMessageIter *iter,
					const char *first_key,
					va_list var_args)
{
	DBusMessageIter dict;
	const char *key;
	int type;
	void *val;

	dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
			DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
			DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
			DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);

	key = first_key;
	while (key) {
		type = va_arg(var_args, int);
		val = va_arg(var_args, void *);
		dict_append_entry(&dict, key, type, val);
		key = va_arg(var_args, char *);
	}

	dbus_message_iter_close_container(iter, &dict);
}

static void emit_device_found(const char *path, const char *address,
				const char *first_key, ...)
{
	DBusMessage *signal;
	DBusMessageIter iter;
	va_list var_args;

	signal = dbus_message_new_signal(path, ADAPTER_INTERFACE,
					"DeviceFound");
	if (!signal) {
		error("Unable to allocate new %s.DeviceFound signal",
				ADAPTER_INTERFACE);
		return;
	}
	dbus_message_iter_init_append(signal, &iter);
	dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &address);

	va_start(var_args, first_key);
	append_dict_valist(&iter, first_key, var_args);
	va_end(var_args);

	g_dbus_send_message(connection, signal);
}

void hcid_dbus_inquiry_result(bdaddr_t *local, bdaddr_t *peer, uint32_t class,
				int8_t rssi, uint8_t *data)
{
	char filename[PATH_MAX + 1];
	struct btd_adapter *adapter;
	char local_addr[18], peer_addr[18], *alias, *name, *tmp_name;
	const char *real_alias;
	const char *path, *icon, *paddr = peer_addr;
	struct remote_dev_info *dev, match;
	dbus_int16_t tmp_rssi = rssi;
	dbus_bool_t legacy = TRUE;
	uint8_t name_type = 0x00;
	name_status_t name_status;
	int state;

	ba2str(local, local_addr);
	ba2str(peer, peer_addr);

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	write_remote_class(local, peer, class);

	if (data) {
		write_remote_eir(local, peer, data);
		legacy = FALSE;
	}

	/*
	 * workaround to identify situation when the daemon started and
	 * a standard inquiry or periodic inquiry was already running
	 */
	if (!(adapter_get_state(adapter) & STD_INQUIRY) &&
			!(adapter_get_state(adapter) & PERIODIC_INQUIRY)) {
		state = adapter_get_state(adapter);
		state |= PERIODIC_INQUIRY;
		adapter_set_state(adapter, state);
	}
	/* Out of range list update */
	if (adapter_get_state(adapter) & PERIODIC_INQUIRY)
		adapter_remove_oor_device(adapter, peer_addr);

	memset(&match, 0, sizeof(struct remote_dev_info));
	bacpy(&match.bdaddr, peer);
	match.name_status = NAME_SENT;
	/* if found: don't send the name again */
	dev = adapter_search_found_devices(adapter, &match);
	if (dev)
		return;

	/* the inquiry result can be triggered by NON D-Bus client */
	if (adapter_get_state(adapter) & RESOLVE_NAME)
		name_status = NAME_REQUIRED;
	else
		name_status = NAME_NOT_REQUIRED;

	create_name(filename, PATH_MAX, STORAGEDIR, local_addr, "aliases");
	alias = textfile_get(filename, peer_addr);

	create_name(filename, PATH_MAX, STORAGEDIR, local_addr, "names");
	name = textfile_get(filename, peer_addr);

	tmp_name = extract_eir_name(data, &name_type);
	if (tmp_name) {
		if (name_type == 0x09) {
			write_device_name(local, peer, tmp_name);
			name_status = NAME_NOT_REQUIRED;

			if (name)
				g_free(name);

			name = tmp_name;
		} else {
			if (name)
				free(tmp_name);
			else
				name = tmp_name;
		}
	}

	if (!alias) {
		real_alias = NULL;

		if (!name) {
			alias = g_strdup(peer_addr);
			g_strdelimit(alias, ":", '-');
		} else
			alias = g_strdup(name);
	} else
		real_alias = alias;

	path = adapter_get_path(adapter);
	icon = class_to_icon(class);

	emit_device_found(path, paddr,
				"Address", DBUS_TYPE_STRING, &paddr,
				"Class", DBUS_TYPE_UINT32, &class,
				"Icon", DBUS_TYPE_STRING, &icon,
				"RSSI", DBUS_TYPE_INT16, &tmp_rssi,
				"Name", DBUS_TYPE_STRING, &name,
				"Alias", DBUS_TYPE_STRING, &alias,
				"LegacyPairing", DBUS_TYPE_BOOLEAN, &legacy,
				NULL);

	if (name && name_type != 0x08)
		name_status = NAME_SENT;

	/* add in the list to track name sent/pending */
	adapter_add_found_device(adapter, peer, rssi, class, real_alias,
					name_status);

	g_free(name);
	g_free(alias);
}

void hcid_dbus_remote_class(bdaddr_t *local, bdaddr_t *peer, uint32_t class)
{
	uint32_t old_class = 0;
	struct btd_adapter *adapter;
	struct btd_device *device;
	const gchar *dev_path;

	read_remote_class(local, peer, &old_class);

	if (old_class == class)
		return;

	if (!get_adapter_and_device(local, peer, &adapter, &device, FALSE))
		return;

	if (!device)
		return;

	dev_path = device_get_path(device);

	emit_property_changed(connection, dev_path, DEVICE_INTERFACE, "Class",
				DBUS_TYPE_UINT32, &class);
}

void hcid_dbus_remote_name(bdaddr_t *local, bdaddr_t *peer, uint8_t status,
				char *name)
{
	struct btd_adapter *adapter;
	char srcaddr[18], dstaddr[18];
	int state;
	struct btd_device *device;
	struct remote_dev_info match, *dev_info;

	if (!get_adapter_and_device(local, peer, &adapter, &device, FALSE))
		return;

	ba2str(local, srcaddr);
	ba2str(peer, dstaddr);

	if (status != 0)
		goto proceed;

	bacpy(&match.bdaddr, peer);
	match.name_status = NAME_ANY;

	dev_info = adapter_search_found_devices(adapter, &match);
	if (dev_info) {
		const char *adapter_path = adapter_get_path(adapter);
		const char *icon = class_to_icon(dev_info->class);
		const char *alias, *paddr = dstaddr;
		dbus_int16_t rssi = dev_info->rssi;
		dbus_bool_t legacy;

		if (dev_info->alias)
			alias = dev_info->alias;
		else
			alias = name;

		if (read_remote_eir(local, peer, NULL) < 0)
			legacy = TRUE;
		else
			legacy = FALSE;

		emit_device_found(adapter_path, dstaddr,
				"Address", DBUS_TYPE_STRING, &paddr,
				"Class", DBUS_TYPE_UINT32, &dev_info->class,
				"Icon", DBUS_TYPE_STRING, &icon,
				"RSSI", DBUS_TYPE_INT16, &rssi,
				"Name", DBUS_TYPE_STRING, &name,
				"Alias", DBUS_TYPE_STRING, &alias,
				"LegacyPairing", DBUS_TYPE_BOOLEAN, &legacy,
				NULL);
	}

	if (device)
		device_set_name(device, name);

proceed:
	/* remove from remote name request list */
	adapter_remove_found_device(adapter, peer);

	/* check if there is more devices to request names */
	if (found_device_req_name(adapter) == 0)
		return;

	state = adapter_get_state(adapter);
	state &= ~PERIODIC_INQUIRY;
	state &= ~STD_INQUIRY;
	adapter_set_state(adapter, state);
}

int hcid_dbus_link_key_notify(bdaddr_t *local, bdaddr_t *peer,
				uint8_t *key, uint8_t key_type,
				int pin_length, uint8_t old_key_type)
{
	struct btd_device *device;
	struct btd_adapter *adapter;
	uint8_t local_auth = 0xff, remote_auth, new_key_type;

	if (!get_adapter_and_device(local, peer, &adapter, &device, TRUE))
		return -ENODEV;

	if (key_type == 0x06 && old_key_type != 0xff)
		new_key_type = old_key_type;
	else
		new_key_type = key_type;

	get_auth_requirements(local, peer, &local_auth);
	remote_auth = device_get_auth(device);

	debug("local auth 0x%02x and remote auth 0x%02x",
					local_auth, remote_auth);

	/* Only store the link key if one of the following is true:
	 * 1. this is a legacy link key
	 * 2. this is a changed combination key and there was a previously
	 *    stored one
	 * 3. neither local nor remote side had no-bonding as a requirement
	 * 4. the local side had dedicated bonding as a requirement
	 * 5. the remote side is using dedicated bonding since in that case
	 *    also the local requirements are set to dedicated bonding
	 */
	if (key_type < 0x03 || (key_type == 0x06 && old_key_type != 0xff) ||
				(local_auth > 0x01 && remote_auth > 0x01) ||
				(local_auth == 0x02 || local_auth == 0x03) ||
				(remote_auth == 0x02 || remote_auth == 0x03)) {
		int err;

		debug("storing link key of type 0x%02x", key_type);

		err = write_link_key(local, peer, key, new_key_type,
								pin_length);
		if (err < 0) {
			error("write_link_key: %s (%d)", strerror(-err), -err);
			return err;
		}

		device_set_temporary(device, FALSE);
	}

	/* If this is not the first link key set a flag so a subsequent auth
	 * complete event doesn't trigger SDP */
	if (old_key_type != 0xff)
		device_set_renewed_key(device, TRUE);

	if (!device_is_connected(device))
		device_set_secmode3_conn(device, TRUE);
	else if (!device_is_bonding(device, NULL) && old_key_type == 0xff)
		hcid_dbus_bonding_process_complete(local, peer, 0);

	return 0;
}

void hcid_dbus_conn_complete(bdaddr_t *local, uint8_t status, uint16_t handle,
				bdaddr_t *peer)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (!get_adapter_and_device(local, peer, &adapter, &device, TRUE))
		return;

	if (status) {
		device_set_secmode3_conn(device, FALSE);
		if (device_is_bonding(device, NULL))
			device_bonding_complete(device, status);
		if (device_is_temporary(device))
			adapter_remove_device(connection, adapter, device);
		return;
	}

	/* add in the device connetions list */
	adapter_add_connection(adapter, device, handle);
}

void hcid_dbus_disconn_complete(bdaddr_t *local, uint8_t status,
				uint16_t handle, uint8_t reason)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (status) {
		error("Disconnection failed: 0x%02x", status);
		return;
	}

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	device = adapter_find_connection(adapter, handle);
	if (!device) {
		error("No matching connection found for handle %u", handle);
		return;
	}

	adapter_remove_connection(adapter, device, handle);
}

int set_service_classes(int dd, const uint8_t *cls, uint8_t value)
{
	uint32_t dev_class;

	if (cls[2] == value)
		return 0; /* Already set */

	dev_class = (value << 16) | (cls[1] << 8) | cls[0];

	debug("Changing service classes to 0x%06x", dev_class);

	if (hci_write_class_of_dev(dd, dev_class, HCI_REQ_TIMEOUT) < 0) {
		int err = -errno;
		error("Can't write class of device: %s (%d)",
							strerror(err), err);
		return err;
	}

	return 0;
}

int set_major_and_minor_class(int dd, const uint8_t *cls,
						uint8_t major, uint8_t minor)
{
	uint32_t dev_class;

	dev_class = (cls[2] << 16) | ((cls[1] & 0x20) << 8) |
						((major & 0xdf) << 8) | minor;

	debug("Changing major/minor class to 0x%06x", dev_class);

	if (hci_write_class_of_dev(dd, dev_class, HCI_REQ_TIMEOUT) < 0) {
		int err = -errno;
		error("Can't write class of device: %s (%d)",
							strerror(err), err);
		return err;
	}

	return 0;
}

/* Section reserved to device HCI callbacks */

void hcid_dbus_setname_complete(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	int id, dd = -1;
	read_local_name_rp rp;
	struct hci_request rq;
	const char *pname = (char *) rp.name;
	char name[249];

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	id = adapter_get_dev_id(adapter);
	dd = hci_open_dev(id);
	if (dd < 0) {
		error("HCI device open failed: hci%d", id);
		memset(&rp, 0, sizeof(rp));
	} else {
		memset(&rq, 0, sizeof(rq));
		rq.ogf    = OGF_HOST_CTL;
		rq.ocf    = OCF_READ_LOCAL_NAME;
		rq.rparam = &rp;
		rq.rlen   = READ_LOCAL_NAME_RP_SIZE;
		rq.event  = EVT_CMD_COMPLETE;

		if (hci_send_req(dd, &rq, HCI_REQ_TIMEOUT) < 0) {
			error("Sending getting name command failed: %s (%d)",
						strerror(errno), errno);
			rp.name[0] = '\0';
		} else if (rp.status) {
			error("Getting name failed with status 0x%02x",
					rp.status);
			rp.name[0] = '\0';
		}
		hci_close_dev(dd);
	}

	strncpy(name, pname, sizeof(name) - 1);
	name[248] = '\0';
	pname = name;

	adapter_name_changed(adapter, pname);
}

void hcid_dbus_setscan_enable_complete(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	read_scan_enable_rp rp;
	struct hci_request rq;
	int dd = -1;
	uint16_t dev_id;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	if (adapter_powering_down(adapter))
		return;

	dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("HCI device open failed: hci%d", dev_id);
		return;
	}

	memset(&rq, 0, sizeof(rq));
	rq.ogf    = OGF_HOST_CTL;
	rq.ocf    = OCF_READ_SCAN_ENABLE;
	rq.rparam = &rp;
	rq.rlen   = READ_SCAN_ENABLE_RP_SIZE;
	rq.event  = EVT_CMD_COMPLETE;

	if (hci_send_req(dd, &rq, HCI_REQ_TIMEOUT) < 0) {
		error("Sending read scan enable command failed: %s (%d)",
				strerror(errno), errno);
		goto failed;
	}

	if (rp.status) {
		error("Getting scan enable failed with status 0x%02x",
				rp.status);
		goto failed;
	}

	adapter_mode_changed(adapter, rp.enable);

failed:
	if (dd >= 0)
		hci_close_dev(dd);
}

void hcid_dbus_write_class_complete(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	int dd;
	uint8_t cls[3];
	uint16_t dev_id;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("HCI device open failed: hci%d", dev_id);
		return;
	}

	if (hci_read_class_of_dev(dd, cls, HCI_REQ_TIMEOUT) < 0) {
		error("Can't read class of device on hci%d: %s (%d)",
			dev_id, strerror(errno), errno);
		hci_close_dev(dd);
		return;
	}

	hci_close_dev(dd);

	adapter_set_class(adapter, cls);
}

void hcid_dbus_write_simple_pairing_mode_complete(bdaddr_t *local)
{
	struct btd_adapter *adapter;
	int dd;
	uint8_t mode;
	uint16_t dev_id;
	const gchar *path;

	adapter = manager_find_adapter(local);
	if (!adapter) {
		error("No matching adapter found");
		return;
	}

	dev_id = adapter_get_dev_id(adapter);
	path = adapter_get_path(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0) {
		error("HCI adapter open failed: %s", path);
		return;
	}

	if (hci_read_simple_pairing_mode(dd, &mode,
						HCI_REQ_TIMEOUT) < 0) {
		error("Can't read simple pairing mode for %s: %s(%d)",
					path, strerror(errno), errno);
		hci_close_dev(dd);
		return;
	}

	adapter_update_ssp_mode(adapter, dd, mode);

	hci_close_dev(dd);
}

int hcid_dbus_get_io_cap(bdaddr_t *local, bdaddr_t *remote,
						uint8_t *cap, uint8_t *auth)
{
	struct btd_adapter *adapter;
	struct btd_device *device;
	struct agent *agent = NULL;

	if (!get_adapter_and_device(local, remote, &adapter, &device, TRUE))
		return -ENODEV;

	if (get_auth_requirements(local, remote, auth) < 0)
		return -1;

	debug("initial authentication requirement is 0x%02x", *auth);

	if (*auth == 0xff)
		*auth = device_get_auth(device);

	/* Check if the adapter is not pairable and if there isn't a bonding
	 * in progress */
	if (!adapter_is_pairable(adapter) &&
				!device_is_bonding(device, NULL)) {
		if (*auth < 0x02 && device_get_auth(device) < 0x02) {
			debug("Allowing no bonding in non-bondable mode");
			/* No input, no output */
			*cap = 0x03;
			goto done;
		}
		return -EPERM;
	}

	/* For CreatePairedDevice use dedicated bonding */
	agent = device_get_agent(device);
	if (!agent)
		agent = adapter_get_agent(adapter);

	if (!agent) {
		/* This is the non bondable mode case */
		if (device_get_auth(device) > 0x01) {
			debug("Bonding request, but no agent present");
			return -1;
		}

		/* No agent available, and no bonding case */
		if (*auth == 0x00) {
			debug("Allowing no bonding without agent");
			/* No input, no output */
			*cap = 0x03;
			goto done;
		}

		error("No agent available for IO capability");
		return -1;
	}

	if (*auth == 0x00) {
		/* If remote requests dedicated bonding follow that lead */
		if (device_get_auth(device) == 0x02 ||
				device_get_auth(device) == 0x03) {
			uint8_t agent_cap = agent_get_io_capability(agent);

			/* If both remote and local IO capabilities allow MITM
			 * then require it, otherwise don't */
			if (device_get_cap(device) == 0x03 ||
							agent_cap == 0x03)
				*auth = 0x02;
			else
				*auth = 0x03;
		}

		/* If remote requires MITM then also require it */
		if (device_get_auth(device) != 0xff &&
					(device_get_auth(device) & 0x01))
			*auth |= 0x01;
	}

	*cap = agent_get_io_capability(agent);

done:
	debug("final authentication requirement is 0x%02x", *auth);

	return 0;
}

int hcid_dbus_set_io_cap(bdaddr_t *local, bdaddr_t *remote,
						uint8_t cap, uint8_t auth)
{
	struct btd_adapter *adapter;
	struct btd_device *device;

	if (!get_adapter_and_device(local, remote, &adapter, &device, TRUE))
		return -ENODEV;

	device_set_cap(device, cap);
	device_set_auth(device, auth);

	return 0;
}

static int inquiry_cancel(int dd, int to)
{
	struct hci_request rq;
	uint8_t status;

	memset(&rq, 0, sizeof(rq));
	rq.ogf    = OGF_LINK_CTL;
	rq.ocf    = OCF_INQUIRY_CANCEL;
	rq.rparam = &status;
	rq.rlen   = sizeof(status);
	rq.event = EVT_CMD_COMPLETE;

	if (hci_send_req(dd, &rq, to) < 0)
		return -1;

	if (status) {
		errno = bt_error(status);
		return -1;
	}

	return 0;
}

static int remote_name_cancel(int dd, bdaddr_t *dba, int to)
{
	remote_name_req_cancel_cp cp;
	struct hci_request rq;
	uint8_t status;

	memset(&rq, 0, sizeof(rq));
	memset(&cp, 0, sizeof(cp));

	bacpy(&cp.bdaddr, dba);

	rq.ogf    = OGF_LINK_CTL;
	rq.ocf    = OCF_REMOTE_NAME_REQ_CANCEL;
	rq.cparam = &cp;
	rq.clen   = REMOTE_NAME_REQ_CANCEL_CP_SIZE;
	rq.rparam = &status;
	rq.rlen = sizeof(status);
	rq.event = EVT_CMD_COMPLETE;

	if (hci_send_req(dd, &rq, to) < 0)
		return -1;

	if (status) {
		errno = bt_error(status);
		return -1;
	}

	return 0;
}

int cancel_discovery(struct btd_adapter *adapter)
{
	struct remote_dev_info *dev, match;
	int dd, err = 0;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0)
		return -ENODEV;

	/*
	 * If there is a pending read remote name request means
	 * that the inquiry complete event was already received
	 */
	memset(&match, 0, sizeof(struct remote_dev_info));
	bacpy(&match.bdaddr, BDADDR_ANY);
	match.name_status = NAME_REQUESTED;

	dev = adapter_search_found_devices(adapter, &match);
	if (dev) {
		if (remote_name_cancel(dd, &dev->bdaddr,
							HCI_REQ_TIMEOUT) < 0) {
			error("Read remote name cancel failed: %s, (%d)",
					strerror(errno), errno);
			err = -errno;
		}
	} else {
		if (inquiry_cancel(dd, HCI_REQ_TIMEOUT) < 0) {
			error("Inquiry cancel failed:%s (%d)",
					strerror(errno), errno);
			err = -errno;
		}
	}

	hci_close_dev(dd);

	return err;
}

static int periodic_inquiry_exit(int dd, int to)
{
	struct hci_request rq;
	uint8_t status;

	memset(&rq, 0, sizeof(rq));
	rq.ogf    = OGF_LINK_CTL;
	rq.ocf    = OCF_EXIT_PERIODIC_INQUIRY;
	rq.rparam = &status;
	rq.rlen   = sizeof(status);
	rq.event = EVT_CMD_COMPLETE;

	if (hci_send_req(dd, &rq, to) < 0)
		return -1;

	if (status) {
		errno = status;
		return -1;
	}

	return 0;
}

int cancel_periodic_discovery(struct btd_adapter *adapter)
{
	struct remote_dev_info *dev, match;
	int dd, err = 0;
	uint16_t dev_id = adapter_get_dev_id(adapter);

	dd = hci_open_dev(dev_id);
	if (dd < 0)
		return -ENODEV;

	/* find the pending remote name request */
	memset(&match, 0, sizeof(struct remote_dev_info));
	bacpy(&match.bdaddr, BDADDR_ANY);
	match.name_status = NAME_REQUESTED;

	dev = adapter_search_found_devices(adapter, &match);
	if (dev) {
		if (remote_name_cancel(dd, &dev->bdaddr,
							HCI_REQ_TIMEOUT) < 0) {
			error("Read remote name cancel failed: %s, (%d)",
					strerror(errno), errno);
			err = -errno;
		}
	}

	/* ovewrite err if necessary: stop periodic inquiry has higher
	 * priority */
	if (periodic_inquiry_exit(dd, HCI_REQ_TIMEOUT) < 0) {
		error("Periodic Inquiry exit failed:%s (%d)",
				strerror(errno), errno);
		err = -errno;
	}

	hci_close_dev(dd);

	return err;
}

/* Most of the functions in this module require easy access to a connection so
 * we keep it global here and provide these access functions the other (few)
 * modules that require access to it */

void set_dbus_connection(DBusConnection *conn)
{
	connection = conn;
}

DBusConnection *get_dbus_connection(void)
{
	return connection;
}