-
-
Notifications
You must be signed in to change notification settings - Fork 144
/
NimBLEAdvertising.cpp
1038 lines (879 loc) · 34 KB
/
NimBLEAdvertising.cpp
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
/*
* NimBLEAdvertising.cpp
*
* Created: on March 3, 2020
* Author H2zero
*
* Originally:
*
* BLEAdvertising.cpp
*
* This class encapsulates advertising a BLE Server.
* Created on: Jun 21, 2017
* Author: kolban
*
*/
#include "nimconfig.h"
#if (defined(CONFIG_BT_ENABLED) && \
defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && \
!CONFIG_BT_NIMBLE_EXT_ADV) || defined(_DOXYGEN_)
#if defined(CONFIG_NIMBLE_CPP_IDF)
#include "services/gap/ble_svc_gap.h"
#else
#include "nimble/nimble/host/services/gap/include/services/gap/ble_svc_gap.h"
#endif
#include "NimBLEAdvertising.h"
#include "NimBLEDevice.h"
#include "NimBLEServer.h"
#include "NimBLEUtils.h"
#include "NimBLELog.h"
static const char* LOG_TAG = "NimBLEAdvertising";
/**
* @brief Construct a default advertising object.
*/
NimBLEAdvertising::NimBLEAdvertising() {
reset();
} // NimBLEAdvertising
/**
* @brief Stops the current advertising and resets the advertising data to the default values.
*/
void NimBLEAdvertising::reset() {
if(NimBLEDevice::getInitialized() && isAdvertising()) {
stop();
}
memset(&m_advData, 0, sizeof m_advData);
memset(&m_scanData, 0, sizeof m_scanData);
memset(&m_advParams, 0, sizeof m_advParams);
memset(&m_slaveItvl, 0, sizeof m_slaveItvl);
const char *name = ble_svc_gap_device_name();
m_advData.name = (uint8_t *)name;
m_advData.name_len = strlen(name);
m_advData.name_is_complete = 1;
m_advData.tx_pwr_lvl = NimBLEDevice::getPower();
m_advData.flags = (BLE_HS_ADV_F_DISC_GEN | BLE_HS_ADV_F_BREDR_UNSUP);
#if !defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
m_advParams.conn_mode = BLE_GAP_CONN_MODE_NON;
#else
m_advParams.conn_mode = BLE_GAP_CONN_MODE_UND;
#endif
m_advParams.disc_mode = BLE_GAP_DISC_MODE_GEN;
m_customAdvData = false;
m_customScanResponseData = false;
m_scanResp = true;
m_advDataSet = false;
// Set this to non-zero to prevent auto start if host reset before started by app.
m_duration = BLE_HS_FOREVER;
m_advCompCB = nullptr;
} // reset
/**
* @brief Add a service uuid to exposed list of services.
* @param [in] serviceUUID The UUID of the service to expose.
*/
void NimBLEAdvertising::addServiceUUID(const NimBLEUUID &serviceUUID) {
m_serviceUUIDs.push_back(serviceUUID);
m_advDataSet = false;
} // addServiceUUID
/**
* @brief Add a service uuid to exposed list of services.
* @param [in] serviceUUID The string representation of the service to expose.
*/
void NimBLEAdvertising::addServiceUUID(const char* serviceUUID) {
addServiceUUID(NimBLEUUID(serviceUUID));
m_advDataSet = false;
} // addServiceUUID
/**
* @brief Add a service uuid to exposed list of services.
* @param [in] serviceUUID The UUID of the service to expose.
*/
void NimBLEAdvertising::removeServiceUUID(const NimBLEUUID &serviceUUID) {
for(auto it = m_serviceUUIDs.begin(); it != m_serviceUUIDs.end(); ++it) {
if((*it) == serviceUUID) {
m_serviceUUIDs.erase(it);
break;
}
}
m_advDataSet = false;
} // addServiceUUID
/**
* @brief Set the device appearance in the advertising data.
* The codes for distinct appearances can be found here:\n
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml.
* @param [in] appearance The appearance of the device in the advertising data.
*/
void NimBLEAdvertising::setAppearance(uint16_t appearance) {
m_advData.appearance = appearance;
m_advData.appearance_is_present = 1;
m_advDataSet = false;
} // setAppearance
/**
* @brief Add the transmission power level to the advertisement packet.
*/
void NimBLEAdvertising::addTxPower() {
m_advData.tx_pwr_lvl_is_present = 1;
m_advDataSet = false;
} // addTxPower
/**
* @brief Set the advertised name of the device.
* @param [in] name The name to advertise.
*/
void NimBLEAdvertising::setName(const std::string &name) {
m_name.assign(name.begin(), name.end());
m_advData.name = &m_name[0];
m_advData.name_len = m_name.size();
m_advDataSet = false;
} // setName
/**
* @brief Set the advertised manufacturer data.
* @param [in] data The data to advertise.
*/
void NimBLEAdvertising::setManufacturerData(const std::string &data) {
m_mfgData.assign(data.begin(), data.end());
m_advData.mfg_data = &m_mfgData[0];
m_advData.mfg_data_len = m_mfgData.size();
m_advDataSet = false;
} // setManufacturerData
/**
* @brief Set the advertised URI.
* @param [in] uri The URI to advertise.
*/
void NimBLEAdvertising::setURI(const std::string &uri) {
m_uri.assign(uri.begin(), uri.end());
m_advData.uri = &m_uri[0];
m_advData.uri_len = m_uri.size();
m_advDataSet = false;
} // setURI
/**
* @brief Set the service data advertised for the UUID.
* @param [in] uuid The UUID the service data belongs to.
* @param [in] data The data to advertise.
* @note If data length is 0 the service data will not be advertised.
*/
void NimBLEAdvertising::setServiceData(const NimBLEUUID &uuid, const std::string &data) {
switch (uuid.bitSize()) {
case 16: {
m_svcData16.assign((uint8_t*)&uuid.getNative()->u16.value, (uint8_t*)&uuid.getNative()->u16.value + 2);
m_svcData16.insert(m_svcData16.end(), data.begin(), data.end());
m_advData.svc_data_uuid16 = (uint8_t*)&m_svcData16[0];
m_advData.svc_data_uuid16_len = (data.length() > 0) ? m_svcData16.size() : 0;
break;
}
case 32: {
m_svcData32.assign((uint8_t*)&uuid.getNative()->u32.value, (uint8_t*)&uuid.getNative()->u32.value + 4);
m_svcData32.insert(m_svcData32.end(), data.begin(), data.end());
m_advData.svc_data_uuid32 = (uint8_t*)&m_svcData32[0];
m_advData.svc_data_uuid32_len = (data.length() > 0) ? m_svcData32.size() : 0;
break;
}
case 128: {
m_svcData128.assign(uuid.getNative()->u128.value, uuid.getNative()->u128.value + 16);
m_svcData128.insert(m_svcData128.end(), data.begin(), data.end());
m_advData.svc_data_uuid128 = (uint8_t*)&m_svcData128[0];
m_advData.svc_data_uuid128_len = (data.length() > 0) ? m_svcData128.size() : 0;
break;
}
default:
return;
}
m_advDataSet = false;
} // setServiceData
/**
* @brief Set the type of advertisment to use.
* @param [in] adv_type:
* * BLE_GAP_CONN_MODE_NON (0) - not connectable advertising
* * BLE_GAP_CONN_MODE_DIR (1) - directed connectable advertising
* * BLE_GAP_CONN_MODE_UND (2) - undirected connectable advertising
*/
void NimBLEAdvertising::setAdvertisementType(uint8_t adv_type){
m_advParams.conn_mode = adv_type;
} // setAdvertisementType
/**
* @brief Set the minimum advertising interval.
* @param [in] mininterval Minimum value for advertising interval in 0.625ms units, 0 = use default.
*/
void NimBLEAdvertising::setMinInterval(uint16_t mininterval) {
m_advParams.itvl_min = mininterval;
} // setMinInterval
/**
* @brief Set the maximum advertising interval.
* @param [in] maxinterval Maximum value for advertising interval in 0.625ms units, 0 = use default.
*/
void NimBLEAdvertising::setMaxInterval(uint16_t maxinterval) {
m_advParams.itvl_max = maxinterval;
} // setMaxInterval
/**
* @brief Set the advertised min connection interval preferred by this device.
* @param [in] mininterval the max interval value. Range = 0x0006 to 0x0C80.
* @details Values not within the range will cancel advertising of this data.\n
* Consumes 6 bytes of advertising space (combined with max interval).
*/
void NimBLEAdvertising::setMinPreferred(uint16_t mininterval) {
// invalid paramters, set the slave interval to null
if(mininterval < 0x0006 || mininterval > 0x0C80) {
m_advData.slave_itvl_range = nullptr;
return;
}
if(m_advData.slave_itvl_range == nullptr) {
m_advData.slave_itvl_range = m_slaveItvl;
}
m_slaveItvl[0] = mininterval;
m_slaveItvl[1] = mininterval >> 8;
uint16_t maxinterval = *(uint16_t*)(m_advData.slave_itvl_range+2);
// If mininterval is higher than the maxinterval make them the same
if(mininterval > maxinterval) {
m_slaveItvl[2] = m_slaveItvl[0];
m_slaveItvl[3] = m_slaveItvl[1];
}
m_advDataSet = false;
} // setMinPreferred
/**
* @brief Set the advertised max connection interval preferred by this device.
* @param [in] maxinterval the max interval value. Range = 0x0006 to 0x0C80.
* @details Values not within the range will cancel advertising of this data.\n
* Consumes 6 bytes of advertising space (combined with min interval).
*/
void NimBLEAdvertising::setMaxPreferred(uint16_t maxinterval) {
// invalid paramters, set the slave interval to null
if(maxinterval < 0x0006 || maxinterval > 0x0C80) {
m_advData.slave_itvl_range = nullptr;
return;
}
if(m_advData.slave_itvl_range == nullptr) {
m_advData.slave_itvl_range = m_slaveItvl;
}
m_slaveItvl[2] = maxinterval;
m_slaveItvl[3] = maxinterval >> 8;
uint16_t mininterval = *(uint16_t*)(m_advData.slave_itvl_range);
// If mininterval is higher than the maxinterval make them the same
if(mininterval > maxinterval) {
m_slaveItvl[0] = m_slaveItvl[2];
m_slaveItvl[1] = m_slaveItvl[3];
}
m_advDataSet = false;
} // setMaxPreferred
/**
* @brief Set if scan response is available.
* @param [in] set true = scan response available.
*/
void NimBLEAdvertising::setScanResponse(bool set) {
m_scanResp = set;
m_advDataSet = false;
} // setScanResponse
/**
* @brief Set the filtering for the scan filter.
* @param [in] scanRequestWhitelistOnly If true, only allow scan requests from those on the white list.
* @param [in] connectWhitelistOnly If true, only allow connections from those on the white list.
*/
void NimBLEAdvertising::setScanFilter(bool scanRequestWhitelistOnly, bool connectWhitelistOnly) {
NIMBLE_LOGD(LOG_TAG, ">> setScanFilter: scanRequestWhitelistOnly: %d, connectWhitelistOnly: %d",
scanRequestWhitelistOnly, connectWhitelistOnly);
if (!scanRequestWhitelistOnly && !connectWhitelistOnly) {
m_advParams.filter_policy = BLE_HCI_ADV_FILT_NONE;
NIMBLE_LOGD(LOG_TAG, "<< setScanFilter");
return;
}
if (scanRequestWhitelistOnly && !connectWhitelistOnly) {
m_advParams.filter_policy = BLE_HCI_ADV_FILT_SCAN;
NIMBLE_LOGD(LOG_TAG, "<< setScanFilter");
return;
}
if (!scanRequestWhitelistOnly && connectWhitelistOnly) {
m_advParams.filter_policy = BLE_HCI_ADV_FILT_CONN;
NIMBLE_LOGD(LOG_TAG, "<< setScanFilter");
return;
}
if (scanRequestWhitelistOnly && connectWhitelistOnly) {
m_advParams.filter_policy = BLE_HCI_ADV_FILT_BOTH;
NIMBLE_LOGD(LOG_TAG, "<< setScanFilter");
return;
}
} // setScanFilter
/**
* @brief Set the advertisement data that is to be published in a regular advertisement.
* @param [in] advertisementData The data to be advertised.
* @details The use of this function will replace any data set with addServiceUUID\n
* or setAppearance. If you wish for these to be advertised you must include them\n
* in the advertisementData parameter sent.
*/
void NimBLEAdvertising::setAdvertisementData(NimBLEAdvertisementData& advertisementData) {
NIMBLE_LOGD(LOG_TAG, ">> setAdvertisementData");
int rc = ble_gap_adv_set_data(
(uint8_t*)advertisementData.getPayload().data(),
advertisementData.getPayload().length());
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_adv_set_data: %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
}
m_customAdvData = true; // Set the flag that indicates we are using custom advertising data.
NIMBLE_LOGD(LOG_TAG, "<< setAdvertisementData");
} // setAdvertisementData
/**
* @brief Set the advertisement data that is to be published in a scan response.
* @param [in] advertisementData The data to be advertised.
* @details Calling this without also using setAdvertisementData will have no effect.\n
* When using custom scan response data you must also use custom advertisement data.
*/
void NimBLEAdvertising::setScanResponseData(NimBLEAdvertisementData& advertisementData) {
NIMBLE_LOGD(LOG_TAG, ">> setScanResponseData");
int rc = ble_gap_adv_rsp_set_data(
(uint8_t*)advertisementData.getPayload().data(),
advertisementData.getPayload().length());
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_adv_rsp_set_data: %d %s",
rc, NimBLEUtils::returnCodeToString(rc));
}
m_customScanResponseData = true; // Set the flag that indicates we are using custom scan response data.
NIMBLE_LOGD(LOG_TAG, "<< setScanResponseData");
} // setScanResponseData
/**
* @brief Start advertising.
* @param [in] duration The duration, in seconds, to advertise, 0 == advertise forever.
* @param [in] advCompleteCB A pointer to a callback to be invoked when advertising ends.
* @return True if advertising started successfully.
*/
bool NimBLEAdvertising::start(uint32_t duration, void (*advCompleteCB)(NimBLEAdvertising *pAdv)) {
NIMBLE_LOGD(LOG_TAG, ">> Advertising start: customAdvData: %d, customScanResponseData: %d",
m_customAdvData, m_customScanResponseData);
// If Host is not synced we cannot start advertising.
if(!NimBLEDevice::m_synced) {
NIMBLE_LOGE(LOG_TAG, "Host reset, wait for sync.");
return false;
}
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
NimBLEServer* pServer = NimBLEDevice::getServer();
if(pServer != nullptr) {
if(!pServer->m_gattsStarted){
pServer->start();
} else if(pServer->getConnectedCount() >= NIMBLE_MAX_CONNECTIONS) {
NIMBLE_LOGE(LOG_TAG, "Max connections reached - not advertising");
return false;
}
}
#endif
// If already advertising just return
if(ble_gap_adv_active()) {
NIMBLE_LOGW(LOG_TAG, "Advertising already active");
return true;
}
// Save the duration incase of host reset so we can restart with the same params
m_duration = duration;
if(duration == 0){
duration = BLE_HS_FOREVER;
}
else{
duration = duration*1000; // convert duration to milliseconds
}
m_advCompCB = advCompleteCB;
m_advParams.disc_mode = BLE_GAP_DISC_MODE_GEN;
m_advData.flags = (BLE_HS_ADV_F_DISC_GEN | BLE_HS_ADV_F_BREDR_UNSUP);
if(m_advParams.conn_mode == BLE_GAP_CONN_MODE_NON) {
if(!m_scanResp) {
m_advParams.disc_mode = BLE_GAP_DISC_MODE_NON;
// non-connectable advertising does not require AD flags.
m_advData.flags = 0;
}
}
int rc = 0;
if (!m_customAdvData && !m_advDataSet) {
//start with 3 bytes for the flags data if required
uint8_t payloadLen = (m_advData.flags > 0) ? (2 + 1) : 0;
if(m_advData.mfg_data_len > 0)
payloadLen += (2 + m_advData.mfg_data_len);
if(m_advData.svc_data_uuid16_len > 0)
payloadLen += (2 + m_advData.svc_data_uuid16_len);
if(m_advData.svc_data_uuid32_len > 0)
payloadLen += (2 + m_advData.svc_data_uuid32_len);
if(m_advData.svc_data_uuid128_len > 0)
payloadLen += (2 + m_advData.svc_data_uuid128_len);
if(m_advData.uri_len > 0)
payloadLen += (2 + m_advData.uri_len);
if(m_advData.appearance_is_present)
payloadLen += (2 + BLE_HS_ADV_APPEARANCE_LEN);
if(m_advData.tx_pwr_lvl_is_present)
payloadLen += (2 + BLE_HS_ADV_TX_PWR_LVL_LEN);
if(m_advData.slave_itvl_range != nullptr)
payloadLen += (2 + BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN);
for(auto &it : m_serviceUUIDs) {
if(it.getNative()->u.type == BLE_UUID_TYPE_16) {
int add = (m_advData.num_uuids16 > 0) ? 2 : 4;
if((payloadLen + add) > BLE_HS_ADV_MAX_SZ){
m_advData.uuids16_is_complete = 0;
continue;
}
payloadLen += add;
if(nullptr == (m_advData.uuids16 = (ble_uuid16_t*)realloc((void*)m_advData.uuids16,
(m_advData.num_uuids16 + 1) * sizeof(ble_uuid16_t))))
{
NIMBLE_LOGC(LOG_TAG, "Error, no mem");
abort();
}
memcpy((void*)&m_advData.uuids16[m_advData.num_uuids16],
&it.getNative()->u16, sizeof(ble_uuid16_t));
m_advData.uuids16_is_complete = 1;
m_advData.num_uuids16++;
}
if(it.getNative()->u.type == BLE_UUID_TYPE_32) {
int add = (m_advData.num_uuids32 > 0) ? 4 : 6;
if((payloadLen + add) > BLE_HS_ADV_MAX_SZ){
m_advData.uuids32_is_complete = 0;
continue;
}
payloadLen += add;
if(nullptr == (m_advData.uuids32 = (ble_uuid32_t*)realloc((void*)m_advData.uuids32,
(m_advData.num_uuids32 + 1) * sizeof(ble_uuid32_t))))
{
NIMBLE_LOGC(LOG_TAG, "Error, no mem");
abort();
}
memcpy((void*)&m_advData.uuids32[m_advData.num_uuids32],
&it.getNative()->u32, sizeof(ble_uuid32_t));
m_advData.uuids32_is_complete = 1;
m_advData.num_uuids32++;
}
if(it.getNative()->u.type == BLE_UUID_TYPE_128){
int add = (m_advData.num_uuids128 > 0) ? 16 : 18;
if((payloadLen + add) > BLE_HS_ADV_MAX_SZ){
m_advData.uuids128_is_complete = 0;
continue;
}
payloadLen += add;
if(nullptr == (m_advData.uuids128 = (ble_uuid128_t*)realloc((void*)m_advData.uuids128,
(m_advData.num_uuids128 + 1) * sizeof(ble_uuid128_t))))
{
NIMBLE_LOGC(LOG_TAG, "Error, no mem");
abort();
}
memcpy((void*)&m_advData.uuids128[m_advData.num_uuids128],
&it.getNative()->u128, sizeof(ble_uuid128_t));
m_advData.uuids128_is_complete = 1;
m_advData.num_uuids128++;
}
}
// check if there is room for the name, if not put it in scan data
if((payloadLen + (2 + m_advData.name_len)) > BLE_HS_ADV_MAX_SZ) {
if(m_scanResp && !m_customScanResponseData){
m_scanData.name = m_advData.name;
m_scanData.name_len = m_advData.name_len;
if(m_scanData.name_len > BLE_HS_ADV_MAX_SZ - 2) {
m_scanData.name_len = BLE_HS_ADV_MAX_SZ - 2;
m_scanData.name_is_complete = 0;
} else {
m_scanData.name_is_complete = 1;
}
m_advData.name = nullptr;
m_advData.name_len = 0;
m_advData.name_is_complete = 0;
} else {
if(m_advData.tx_pwr_lvl_is_present) {
m_advData.tx_pwr_lvl_is_present = 0;
payloadLen -= (2 + 1);
}
// if not using scan response just cut the name down
// leaving 2 bytes for the data specifier.
if(m_advData.name_len > (BLE_HS_ADV_MAX_SZ - payloadLen - 2)) {
m_advData.name_len = (BLE_HS_ADV_MAX_SZ - payloadLen - 2);
m_advData.name_is_complete = 0;
}
}
}
if(m_scanResp && !m_customScanResponseData) {
rc = ble_gap_adv_rsp_set_fields(&m_scanData);
switch(rc) {
case 0:
break;
case BLE_HS_EBUSY:
NIMBLE_LOGE(LOG_TAG, "Already advertising");
break;
case BLE_HS_EMSGSIZE:
NIMBLE_LOGE(LOG_TAG, "Scan data too long");
break;
default:
NIMBLE_LOGE(LOG_TAG, "Error setting scan response data; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
break;
}
}
if(rc == 0) {
rc = ble_gap_adv_set_fields(&m_advData);
switch(rc) {
case 0:
break;
case BLE_HS_EBUSY:
NIMBLE_LOGE(LOG_TAG, "Already advertising");
break;
case BLE_HS_EMSGSIZE:
NIMBLE_LOGE(LOG_TAG, "Advertisement data too long");
break;
default:
NIMBLE_LOGE(LOG_TAG, "Error setting advertisement data; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
break;
}
}
if(m_advData.num_uuids128 > 0) {
free((void*)m_advData.uuids128);
m_advData.uuids128 = nullptr;
m_advData.num_uuids128 = 0;
}
if(m_advData.num_uuids32 > 0) {
free((void*)m_advData.uuids32);
m_advData.uuids32 = nullptr;
m_advData.num_uuids32 = 0;
}
if(m_advData.num_uuids16 > 0) {
free((void*)m_advData.uuids16);
m_advData.uuids16 = nullptr;
m_advData.num_uuids16 = 0;
}
if(rc !=0) {
return false;
}
m_advDataSet = true;
}
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
rc = ble_gap_adv_start(NimBLEDevice::m_own_addr_type, NULL, duration,
&m_advParams,
(pServer != nullptr) ? NimBLEServer::handleGapEvent :
NimBLEAdvertising::handleGapEvent,
(void*)this);
#else
rc = ble_gap_adv_start(NimBLEDevice::m_own_addr_type, NULL, duration,
&m_advParams, NimBLEAdvertising::handleGapEvent, this);
#endif
switch(rc) {
case 0:
break;
case BLE_HS_EALREADY:
NIMBLE_LOGI(LOG_TAG, "Advertisement Already active");
break;
case BLE_HS_EINVAL:
NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Duration too long");
break;
case BLE_HS_EPREEMPTED:
NIMBLE_LOGE(LOG_TAG, "Unable to advertise - busy");
break;
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGE(LOG_TAG, "Unable to advertise - Host Reset");
break;
default:
NIMBLE_LOGE(LOG_TAG, "Error enabling advertising; rc=%d, %s",
rc, NimBLEUtils::returnCodeToString(rc));
break;
}
NIMBLE_LOGD(LOG_TAG, "<< Advertising start");
return (rc == 0 || rc == BLE_HS_EALREADY);
} // start
/**
* @brief Stop advertising.
* @return True if advertising stopped successfully.
*/
bool NimBLEAdvertising::stop() {
NIMBLE_LOGD(LOG_TAG, ">> stop");
int rc = ble_gap_adv_stop();
if (rc != 0 && rc != BLE_HS_EALREADY) {
NIMBLE_LOGE(LOG_TAG, "ble_gap_adv_stop rc=%d %s",
rc, NimBLEUtils::returnCodeToString(rc));
return false;
}
NIMBLE_LOGD(LOG_TAG, "<< stop");
return true;
} // stop
/**
* @brief Handles the callback when advertising stops.
*/
void NimBLEAdvertising::advCompleteCB() {
if(m_advCompCB != nullptr) {
m_advCompCB(this);
}
} // advCompleteCB
/**
* @brief Check if currently advertising.
* @return true if advertising is active.
*/
bool NimBLEAdvertising::isAdvertising() {
return ble_gap_adv_active();
} // isAdvertising
/*
* Host reset seems to clear advertising data,
* we need clear the flag so it reloads it.
*/
void NimBLEAdvertising::onHostSync() {
NIMBLE_LOGD(LOG_TAG, "Host re-synced");
m_advDataSet = false;
// If we were advertising forever, restart it now
if(m_duration == 0) {
start(m_duration, m_advCompCB);
} else {
// Otherwise we should tell the app that advertising stopped.
advCompleteCB();
}
} // onHostSync
/**
* @brief Handler for gap events when not using peripheral role.
* @param [in] event the event data.
* @param [in] arg pointer to the advertising instance.
*/
/*STATIC*/
int NimBLEAdvertising::handleGapEvent(struct ble_gap_event *event, void *arg) {
NimBLEAdvertising *pAdv = (NimBLEAdvertising*)arg;
if(event->type == BLE_GAP_EVENT_ADV_COMPLETE) {
switch(event->adv_complete.reason) {
// Don't call the callback if host reset, we want to
// preserve the active flag until re-sync to restart advertising.
case BLE_HS_ETIMEOUT_HCI:
case BLE_HS_EOS:
case BLE_HS_ECONTROLLER:
case BLE_HS_ENOTSYNCED:
NIMBLE_LOGC(LOG_TAG, "host reset, rc=%d", event->adv_complete.reason);
NimBLEDevice::onReset(event->adv_complete.reason);
return 0;
default:
break;
}
pAdv->advCompleteCB();
}
return 0;
}
/**
* @brief Add data to the payload to be advertised.
* @param [in] data The data to be added to the payload.
*/
void NimBLEAdvertisementData::addData(const std::string &data) {
if ((m_payload.length() + data.length()) > BLE_HS_ADV_MAX_SZ) {
NIMBLE_LOGE(LOG_TAG, "Advertisement data length exceeded");
return;
}
m_payload.append(data);
} // addData
/**
* @brief Add data to the payload to be advertised.
* @param [in] data The data to be added to the payload.
* @param [in] length The size of data to be added to the payload.
*/
void NimBLEAdvertisementData::addData(char * data, size_t length) {
addData(std::string(data, length));
} // addData
/**
* @brief Set the appearance.
* @param [in] appearance The appearance code value.
*
* See also:
* https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml
*/
void NimBLEAdvertisementData::setAppearance(uint16_t appearance) {
char cdata[2];
cdata[0] = 3;
cdata[1] = BLE_HS_ADV_TYPE_APPEARANCE; // 0x19
addData(std::string(cdata, 2) + std::string((char*) &appearance, 2));
} // setAppearance
/**
* @brief Set the advertisement flags.
* @param [in] flag The flags to be set in the advertisement.
* * BLE_HS_ADV_F_DISC_LTD
* * BLE_HS_ADV_F_DISC_GEN
* * BLE_HS_ADV_F_BREDR_UNSUP - must always use with NimBLE
*/
void NimBLEAdvertisementData::setFlags(uint8_t flag) {
char cdata[3];
cdata[0] = 2;
cdata[1] = BLE_HS_ADV_TYPE_FLAGS; // 0x01
cdata[2] = flag | BLE_HS_ADV_F_BREDR_UNSUP;
addData(std::string(cdata, 3));
} // setFlag
/**
* @brief Set manufacturer specific data.
* @param [in] data The manufacturer data to advertise.
*/
void NimBLEAdvertisementData::setManufacturerData(const std::string &data) {
char cdata[2];
cdata[0] = data.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_MFG_DATA ; // 0xff
addData(std::string(cdata, 2) + data);
} // setManufacturerData
/**
* @brief Set the URI to advertise.
* @param [in] uri The uri to advertise.
*/
void NimBLEAdvertisementData::setURI(const std::string &uri) {
char cdata[2];
cdata[0] = uri.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_URI;
addData(std::string(cdata, 2) + uri);
} // setURI
/**
* @brief Set the complete name of this device.
* @param [in] name The name to advertise.
*/
void NimBLEAdvertisementData::setName(const std::string &name) {
char cdata[2];
cdata[0] = name.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_COMP_NAME; // 0x09
addData(std::string(cdata, 2) + name);
} // setName
/**
* @brief Set a single service to advertise as a complete list of services.
* @param [in] uuid The service to advertise.
*/
void NimBLEAdvertisementData::setCompleteServices(const NimBLEUUID &uuid) {
setServices(true, uuid.bitSize(), {uuid});
} // setCompleteServices
/**
* @brief Set the complete list of 16 bit services to advertise.
* @param [in] v_uuid A vector of 16 bit UUID's to advertise.
*/
void NimBLEAdvertisementData::setCompleteServices16(const std::vector<NimBLEUUID>& v_uuid) {
setServices(true, 16, v_uuid);
} // setCompleteServices16
/**
* @brief Set the complete list of 32 bit services to advertise.
* @param [in] v_uuid A vector of 32 bit UUID's to advertise.
*/
void NimBLEAdvertisementData::setCompleteServices32(const std::vector<NimBLEUUID>& v_uuid) {
setServices(true, 32, v_uuid);
} // setCompleteServices32
/**
* @brief Set a single service to advertise as a partial list of services.
* @param [in] uuid The service to advertise.
*/
void NimBLEAdvertisementData::setPartialServices(const NimBLEUUID &uuid) {
setServices(false, uuid.bitSize(), {uuid});
} // setPartialServices
/**
* @brief Set the partial list of services to advertise.
* @param [in] v_uuid A vector of 16 bit UUID's to advertise.
*/
void NimBLEAdvertisementData::setPartialServices16(const std::vector<NimBLEUUID>& v_uuid) {
setServices(false, 16, v_uuid);
} // setPartialServices16
/**
* @brief Set the partial list of services to advertise.
* @param [in] v_uuid A vector of 32 bit UUID's to advertise.
*/
void NimBLEAdvertisementData::setPartialServices32(const std::vector<NimBLEUUID>& v_uuid) {
setServices(false, 32, v_uuid);
} // setPartialServices32
/**
* @brief Utility function to create the list of service UUID's from a vector.
* @param [in] complete If true the vector is the complete set of services.
* @param [in] size The bit size of the UUID's in the vector. (16, 32, or 128).
* @param [in] v_uuid The vector of service UUID's to advertise.
*/
void NimBLEAdvertisementData::setServices(const bool complete, const uint8_t size,
const std::vector<NimBLEUUID> &v_uuid)
{
char cdata[2];
cdata[0] = (size / 8) * v_uuid.size() + 1;
switch(size) {
case 16:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS16 : BLE_HS_ADV_TYPE_INCOMP_UUIDS16;
break;
case 32:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS32 : BLE_HS_ADV_TYPE_INCOMP_UUIDS32;
break;
case 128:
cdata[1] = complete ? BLE_HS_ADV_TYPE_COMP_UUIDS128 : BLE_HS_ADV_TYPE_INCOMP_UUIDS128;
break;
default:
return;
}
std::string uuids;
for(auto &it : v_uuid){
if(it.bitSize() != size) {
NIMBLE_LOGE(LOG_TAG, "Service UUID(%d) invalid", size);
return;
} else {
switch(size) {
case 16:
uuids += std::string((char*)&it.getNative()->u16.value, 2);
break;
case 32:
uuids += std::string((char*)&it.getNative()->u32.value, 4);
break;
case 128:
uuids += std::string((char*)&it.getNative()->u128.value, 16);
break;
default:
return;
}
}
}
addData(std::string(cdata, 2) + uuids);
} // setServices
/**
* @brief Set the service data (UUID + data)
* @param [in] uuid The UUID to set with the service data.
* @param [in] data The data to be associated with the service data advertised.
*/
void NimBLEAdvertisementData::setServiceData(const NimBLEUUID &uuid, const std::string &data) {
char cdata[2];
switch (uuid.bitSize()) {
case 16: {
// [Len] [0x16] [UUID16] data
cdata[0] = data.length() + 3;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID16; // 0x16
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u16.value, 2) + data);
break;
}
case 32: {
// [Len] [0x20] [UUID32] data
cdata[0] = data.length() + 5;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID32; // 0x20
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u32.value, 4) + data);
break;
}
case 128: {
// [Len] [0x21] [UUID128] data
cdata[0] = data.length() + 17;
cdata[1] = BLE_HS_ADV_TYPE_SVC_DATA_UUID128; // 0x21
addData(std::string(cdata, 2) + std::string((char*) &uuid.getNative()->u128.value, 16) + data);
break;
}
default:
return;
}
} // setServiceData
/**
* @brief Set the short name.
* @param [in] name The short name of the device.
*/
void NimBLEAdvertisementData::setShortName(const std::string &name) {
char cdata[2];
cdata[0] = name.length() + 1;
cdata[1] = BLE_HS_ADV_TYPE_INCOMP_NAME; // 0x08
addData(std::string(cdata, 2) + name);
} // setShortName