-
Notifications
You must be signed in to change notification settings - Fork 5
/
Copy pathcontactless_k2.h
4132 lines (3712 loc) · 182 KB
/
contactless_k2.h
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
/* contactless_k2.h - EVM Contactless Kernel 2 (Mastercard) Implementation
* Copyright 2019 Daniel Hu <[email protected]>
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, and the entire permission notice in its entirety,
* including the disclaimer of warranties.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
* WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*
*/
#ifndef CONTACTLESS_K2_H
#define CONTACTLESS_K2_H
// implementation of emv contactless Kernel 2
#include "emv.h"
namespace emv::contactless {
class kernel2 : public kernel {
class database : public tlv_db {
public:
database() : tlv_db{} {};
tlv_obj get_and_remove_from_list(secure_vector& list_data) {
uint32_t tag = 0;
uint8_t tagSize = 0;
uint32_t length;
auto begin = list_data.cbegin();
auto end = list_data.cend();
while (begin < end) {
if (*begin == 0x00) {
begin++;
continue;
}
if (!tlv_get_tag(begin, end, tag, tagSize) ||
!tlv_get_length(begin, end, length) ||
begin + length > end) {
pr_error("got wrong list\n");
throw std::bad_exception();
}
secure_vector v{begin, begin + length};
tlv_obj obj{tag, std::move(v)};
list_data = secure_vector{begin + length, end};
return obj;
}
return tlv_obj{};
};
bool update_with_det_data(secure_vector const& det_data) {
pr_debug("update with DET:\n");
auto parser = [&](uint32_t tag, auto begin, auto end, bool constructed) mutable -> bool {
if (tag == TAGS_TO_READ_DF8112.id) {
tag_list_deserialize(begin, end, tags_to_read_yet);
} else if (tag == TAGS_TO_WRITE_BEFORE_GEN_AC_FF8102.id) {
tags_to_write_yet_before_gen_ac.append(begin, end);
} else if (tag == TAGS_TO_WRITE_AFTER_GEN_AC_FF8103.id) {
tags_to_write_yet_after_gen_ac.append(begin, end);
} else if (!constructed) {
// IF
// [(IsKnown(T) OR IsPresent(T)) AND
// update conditions of T include DET Signal]
// THEN
// Store LV in the TLV Database for tag T
// ENDIF
// FIXME check update conditions
secure_vector v(begin, end);
tlv_print(tag, v);
tlv_obj tlv(tag, std::move(v));
insert(std::move(tlv));
}
return true;
};
return tlv_visit(det_data.begin(), det_data.end(), parser, false);
};
bool parse_store_card_response(secure_vector const& apdu) {
auto parser = [&](uint32_t tag, auto begin, auto end, bool constructed) mutable -> bool {
return save_tlv_from_card(tag, begin, end, constructed);
};
return tlv_visit(apdu.begin(), apdu.end() - 2, parser);
};
bool save_tlv_from_card(uint32_t tag, secure_vector::const_iterator begin,
secure_vector::const_iterator end, bool constructed) {
if (!constructed) {
if (has_tag(tag)) {
logger.error("duplicated tlv found from card ", to_hex(tag));
return false;
};
secure_vector v{begin, end};
if (tag == TRACK2_57.id && has_tag(PAN_5A)) {
auto pan_5A = (*this)(PAN_5A);
auto pan_57 = TRACK2_57.get_pan(v);
if (pan_57 != pan_5A) {
pr_debug("pan error: 57 does not match existing 5A\n");
return false;
}
} else if (tag == PAN_5A.id && has_tag(TRACK2_57)) {
auto& _v = (*this)[TRACK2_57];
if (TRACK2_57.get_pan(_v) != PAN_5A.to_string(v)) {
pr_debug("pan error : 5A does not match existing 57\n");
return false;
}
}
if (!tlv_validate(tag, v)) {
logger.error("tag ", to_hex(tag), " format error\n");
return false;
}
tlv_print(tag, v);
tlv_obj obj{tag, std::move(v)};
insert(std::move(obj));
}
return true;
};
AC_TYPE ac_type;
struct {
uint8_t cda : 1;
} oda_status;
std::set<uint32_t> tags_to_read_yet;
tlv_obj_list tags_to_write_yet_after_gen_ac;
tlv_obj_list tags_to_write_yet_before_gen_ac;
secure_vector afl;
secure_vector contactless_transaction_limit;
secure_vector static_oda_data;
secure_vector saved_gac_rsp;
const uint8_t* active_afl;
uint8_t next_record;
void init_card_read() {
active_afl = afl.data();
pr_debug("sfi ", static_cast<int>(AFL_94.get_sfi(active_afl)),
" first ", static_cast<int>(AFL_94.get_first_record(active_afl)),
" last ",
AFL_94.get_last_record(active_afl),
"\n");
next_record = AFL_94.get_first_record(active_afl);
};
void read_next_record(modulel2* emvl2) {
uint8_t sfi = AFL_94.get_sfi(active_afl);
pr_debug("READ RECORD sfi ", (int)sfi, " record #", (int)next_record,
" [ ", (int)AFL_94.get_first_record(active_afl),
" - ", (int)AFL_94.get_last_record(active_afl), "]\n");
emvl2->send_apdu(apdu_builder::build(COMMANDS::READ_RECORD).p1(next_record).p2((sfi << 3) | 4).le(0).to_bytes());
}
bool is_afl_empty() {
if (active_afl >= afl.data() + afl.size()) {
return true;
}
return false;
}
void get_record_and_move_to_next(bool& signed_record, uint8_t& sfi) {
sfi = AFL_94.get_sfi(active_afl);
auto first = AFL_94.get_first_record(active_afl);
auto oda_num = AFL_94.get_oda_records(active_afl);
if (first + oda_num > next_record) {
signed_record = true;
};
next_record++;
if (next_record > AFL_94.get_last_record(active_afl)) {
active_afl += 4;
if (!is_afl_empty()) {
next_record = AFL_94.get_first_record(active_afl);
}
}
};
// TODO need to check oda data size etc. and set TVR accordingly
// refer to S4.35
bool parse_record(const secure_vector& apdu, bool signed_record, uint8_t sfi) {
// S4.24
if (sfi <= 10) {
if (apdu.size() <= 4 ||
apdu[0] != 0x70 ||
apdu[1] == 0) {
return false;
}
}
auto parser = [&](uint32_t tag, auto begin, auto end, bool constructed) mutable -> bool {
if (constructed &&
signed_record && oda_status.cda &&
tag == 0x70 && sfi <= 10) {
secure_vector data{begin, end};
pr_debug("APPEND ", data, "\n");
std::copy(begin, end, back_inserter(static_oda_data));
}
return save_tlv_from_card(tag, begin, end, constructed);
};
if (!tlv_visit(apdu.begin(), apdu.end() - 2, parser))
return false;
// S4.34 S4.35
bool oda_err = false;
if (signed_record && oda_status.cda) {
if (sfi > 10) {
if (apdu[0] == 0x70) {
pr_debug("sfi ", static_cast<int>(sfi), " record ", static_cast<int>(next_record), "\n");
secure_vector data{apdu.begin(), apdu.end() - 2};
pr_debug("APPEND ", data, "\n");
std::copy(apdu.begin(), apdu.end() - 2, back_inserter(static_oda_data));
} else {
oda_err = true;
}
}
#if 0
if (static_oda_data.size() >= 254) { // FIXME
oda_err = true;
}
#endif
if (oda_err) {
set_bit(TVR_95, TAG_TVR_95::cda_failed);
}
};
return true;
};
};
const map<uint32_t, secure_vector> DEFAULT_CONFIG_DATA{
// additional terminal capabilities
{0x9F40, {0x00, 0x00, 0x00, 0x00, 0x00}},
// application versio number (reader)
{0x9F09, {0x00, 0x02}},
// card data input capability
{0xDF8117, {0x00}},
//cvm capability - cvm required,
{0xDF8118, {0x00}},
//cvm capability - no cvm required
{0xDF8119, {0x00}},
//default udol
{0xDF8111A, {0x9F, 0x6A, 0x04}},
//hold time value
{0xDF8130, {0x0D}},
//kernel configuration
{0xDF811B, {0x00}},
//kernel id
{0xDF810C, {0x02}},
//MS application version number (reader)
{0x9F6D, {0x00, 0x01}},
//MS cvm capability - cvm required
{0xDF811E, {0xF0}},
//MS cvm capability - no cvm required
{0xDF812C, {0xF0}},
//max lifetime of torn transaction log record
{0xDF811C, {0x01, 0x2c}},
// max numberof torn records
{0xDF811D, {0x00}},
// message hold time
{0xDF812D, {0x00, 0x00, 0x13}},
// max relay resistence grace period
{0xDF8133, {0x00, 0x32}},
// min relay resistence grace period
{0xDF8132, {0x00, 0x14}},
//phone message table see table 4.4
{0xDF8131,
{0x00, 0x00, 0x01, 0x00, 0x00, 0x01, /* SEE PHONE */ 0x20, /* NOT READY */ 0x00,
0x00, 0x08, 0x00, 0x00, 0x08, 0x00, /* SEE PHONE */ 0x20, /* NOT READY */ 0x00,
0x00, 0x04, 0x00, 0x00, 0x04, 0x00, /* SEE PHONE */ 0x20, /* NOT READY */ 0x00,
0x00, 0x01, 0x00, 0x00, 0x01, 0x00, /* SEE PHONE */ 0x20, /* NOT READY */ 0x00,
0x00, 0x02, 0x00, 0x00, 0x02, 0x00, /* SEE PHONE */ 0x20, /* NOT READY */ 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* DECLINED */ 0x07, /* NOT READY */ 0x00}},
// reader contactles floor limit
{0xDF8123, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
// reader contactless transaction limit (no od-cvm)
{0xDF8124, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
// reader contactless transaction limit (od-cvm)
{0xDF8125, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
// reader cvm required limit
{0xDF8126, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
//relay resistance accurancy threshold
{0xDF8136, {0x01, 0x2C}},
//relay resistance transmission time mismatch theshold
{0xDF8137, {0x32}},
//security capability
{0xDF811F, {0x00}},
//TAC-Default
{0xDF8120, {0x84, 0x00, 0x00, 0x00, 0x0C}},
//TAC-Denial
{0xDF8121, {0x84, 0x00, 0x00, 0x00, 0x0C}},
//TAC-Online
{0xDF8122, {0x84, 0x00, 0x00, 0x00, 0x0C}},
// terminal country code
{0x9F1A, {0x00, 0x00}},
// terminal expected transmission time for RR C-APDU
{0xDF8134, {0x00, 0x12}},
// terminal expected transmission time for RR R-APDU
{0xDF8135, {0x00, 0x18}},
// terminal type
{0x9F35, {0x00}},
// time out value
{0xDF8127, {0x01, 0xF4}},
// transaction type
{0x9C, {0x00}}};
private:
modulel2* emvl2;
database kernel_db;
const candidate* candy;
int failed_ms_cntr;
private:
enum class SIGNAL : uint8_t {
KERNEL_START,
DET,
RA,
ACT,
STOP,
CLEAN,
TIMEOUT,
L1RSP
};
std::string to_string(SIGNAL sig) {
switch (sig) {
case SIGNAL::KERNEL_START:
return "KERNEL_START";
case SIGNAL::DET:
return "DET";
case SIGNAL::RA:
return "RA";
case SIGNAL::ACT:
return "ACT";
case SIGNAL::STOP:
return "STOP";
case SIGNAL::CLEAN:
return "CLEAN";
case SIGNAL::TIMEOUT:
return "TIMEOUT";
case SIGNAL::L1RSP:
return "L1RSP";
default:
return std::string{};
};
};
enum class KSTATUS : uint8_t {
DEFAULT = 0,
EXIT_KERNEL = 1
};
enum class NEXT_CMD : uint8_t {
NONE,
GET_DATA,
READ_RECORD
};
public:
kernel2(modulel2* emvl2) : emvl2{emvl2}, failed_ms_cntr{0}, state{nullptr}, k2resp{k2responder{this}} {};
class k2responder : public modulel2::responder {
public:
k2responder(kernel2* k2) : modulel2::responder{0, k2->emvl2}, k2{k2} {};
virtual void handle_apdu(const secure_vector& apdu) override {
modulel2::responder::handle_apdu(apdu);
k2->dispatch_signal(SIGNAL::RA, &apdu);
};
virtual void handle_det(const secure_vector& data) override {
k2->dispatch_signal(SIGNAL::DET, &data);
};
virtual void handle_l1rsp(const secure_vector& error) override {
k2->dispatch_signal(SIGNAL::L1RSP, &error);
};
virtual void timeout() override {
k2->dispatch_signal(SIGNAL::TIMEOUT, nullptr);
};
virtual void enter() override{};
virtual void exit() override {}
kernel2* k2;
};
virtual bool start(uint8_t sw1, uint8_t sw2, const tlv_db fci, const candidate* candy, const issuer_script script, modulel2* l2) override {
(void)sw1;
(void)sw2;
pr_debug("starting kernel2\n");
emvl2 = l2;
this->candy = candy;
if (script.size() != 0) {
pr_debug("issuer script update\n");
} else if (fci.has_tag(IDSD_D2) && candy->extended_selection.size() != 0) {
pr_debug("IDS procesing\n");
} else {
pr_debug("New transaction\n");
kernel_db = database{};
kernel_db.emplace(ADF_NAME_4F.id, candy->adf_name);
if (candy->extended_selection.size() != 0)
kernel_db.emplace(EXTENDED_SELECTION_9F29.id, candy->extended_selection);
auto combo = candy->combo;
// TODO perhaps we should do these consolidation at intialization time
//pr_debug("kernel_db :\n");
//kernel_db.print();
kernel_db.insert(emvl2->l2_cfgs.terminal_cfg);
//pr_debug("terminal db\n");
//emvl2->l2_cfgs.terminal_cfg.print();
kernel_db.update(combo->krn->db);
//pr_debug("krn db\n");
//combo->krn->db.print();
kernel_db.update(combo->app->db);
//pr_debug("application db\n");
//combo->app->db.print();
kernel_db.update(combo->transact->db);
//pr_debug("transact db\n");
//combo->transact->db.print();
kernel_db.update(combo->db);
//pr_debug("combo db\n");
//combo->db.print();
kernel_db.insert(fci);
//pr_debug("fci db\n");
//fci.print();
emvl2->set_state(&k2resp);
enter_state(&ks);
dispatch_signal(SIGNAL::KERNEL_START);
dispatch_signal(SIGNAL::ACT);
}
return true;
}
private:
std::function<KSTATUS(SIGNAL, const secure_vector*)>* state;
k2responder k2resp;
void enter_state(std::function<KSTATUS(SIGNAL, const secure_vector*)>* next) {
state = next;
};
void dispatch_signal(SIGNAL sig, const secure_vector* param = nullptr) {
if (state != nullptr) {
pr_debug("Kernel Signal -> ", to_string(sig), "\n");
auto ret = (*state)(sig, param);
if (ret == KSTATUS::EXIT_KERNEL) {
// TODO
kernel_db.clear();
}
} else {
pr_error("dispatch signal when there is NO handler\n");
}
};
std::function<KSTATUS(SIGNAL, const secure_vector*)> ks = [&](SIGNAL sig, const secure_vector* param) {
if (sig == SIGNAL::KERNEL_START) {
pr_debug("initialize default config data\n");
for (auto& p : DEFAULT_CONFIG_DATA) {
if (!kernel_db.has_tag(p.first)) {
tlv_print(p.first, p.second);
tlv_obj obj{p.first, p.second};
kernel_db.insert(std::move(obj));
}
}
// 6.2.3
kernel_db.emplace(MOBILE_SUPPORT_INDICATOR_9F7E.id, secure_vector{0x01});
// outcome params
secure_vector params = TAG_OUTCOME_PARAMETER_SET_DF8129::get_default();
v_set_bit(params, TAG_OUTCOME_PARAMETER_SET_DF8129::discretionary_data_present);
tlv_obj obj{OUTCOME_PARAMETER_SET_DF8129.id, std::move(params)};
kernel_db.insert(std::move(obj));
// ui data
secure_vector ui = TAG_USER_INTERFACE_REQUEST_DATA_DF8116::get_default();
auto& hold_time = kernel_db[MESSAGE_HOLD_TIME_DF812D];
TAG_USER_INTERFACE_REQUEST_DATA_DF8116::set_hold_time(ui, hold_time);
kernel_db.emplace(USER_INTERFACE_REQUEST_DATA_DF8116.id, std::move(ui));
// error indication
secure_vector error = TAG_ERROR_INDICATION_DF8115::get_default();
kernel_db.emplace(ERROR_INDICATION_DF8115.id, std::move(error));
enter_state(&s1_idle);
};
return KSTATUS::DEFAULT;
};
void remove_records(){};
std::function<KSTATUS(SIGNAL, const secure_vector*)> s1_idle = [&](SIGNAL sig, const secure_vector* param) {
switch (sig) {
case SIGNAL::ACT: // S1_1
break;
case SIGNAL::STOP: { // S1_2
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.error(L3_ERROR::STOP)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.post());
return KSTATUS::EXIT_KERNEL;
}
case SIGNAL::CLEAN: // S1_4
remove_records();
return KSTATUS::EXIT_KERNEL;
default:
return KSTATUS::DEFAULT;
};
//s1_7
if (param != nullptr) {
auto parser = [&](uint32_t tag, auto begin, auto end, bool combined) mutable -> bool {
if (!combined) {
secure_vector v{begin, end};
tlv_obj obj{tag, std::move(v)};
if (tag_has_permission(tag, PERM_ACT)) {
kernel_db.update(obj);
};
};
return true;
};
tlv_visit(param->begin(), param->end(), parser);
};
if (kernel_db.has_non_empty_tag(LANG_PREF_5F2D)) {
auto v = kernel_db[LANG_PREF_5F2D];
if (v.size() < LANG_PREF_5F2D.maxlen) {
v.resize(LANG_PREF_5F2D.maxlen);
};
auto& p = kernel_db[USER_INTERFACE_REQUEST_DATA_DF8116];
TAG_USER_INTERFACE_REQUEST_DATA_DF8116::set_lang_pref(p, v);
};
if (!kernel_db.has_tag(DF_NAME_84) || kernel_db.has_empty_tag(DF_NAME_84.id)) {
auto& error_ind = kernel_db[ERROR_INDICATION_DF8115.id];
TAG_ERROR_INDICATION_DF8115::set_l2_error(error_ind, L2_ERROR::CARD_DATA_MISSING);
//s_8:
auto& outcome = kernel_db[OUTCOME_PARAMETER_SET_DF8129];
TAG_OUTCOME_PARAMETER_SET_DF8129::set_status(outcome, OUTCOME_TYPE::SELECT_NEXT);
TAG_OUTCOME_PARAMETER_SET_DF8129::set_start(outcome, RESTART_POINT::C);
auto tlv = kernel_db.to_tlv(ERROR_INDICATION_DF8115);
tlv_obj discretionary_data(DISCRETIONARY_DATA_FF8106.id, tlv);
kernel_db.insert(std::move(discretionary_data));
return KSTATUS::EXIT_KERNEL;
};
if (kernel_db.has_non_empty_tag(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D)) {
if (kernel_db.get_bit(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D,
KERNEL2::TAG_APPLICATION_CAPABILITIES_INFO_9F5D::support_for_field_off_detection)) {
auto& v = kernel_db[OUTCOME_PARAMETER_SET_DF8129.id];
auto& hold_time = kernel_db[HOLD_TIME_VALUE_DF8130];
TAG_OUTCOME_PARAMETER_SET_DF8129::set_field_off(v, hold_time[0]);
};
};
//s1_9:
kernel_db.initialize(CVM_RESULT_9F34);
kernel_db.ac_type = AC_TYPE::TC;
kernel_db.initialize(TVR_95);
kernel_db.oda_status = {0};
kernel_db.initialize(RRP_COUNTER_DF8307);
kernel_db.initialize(TERMINAL_CAPABILITIES_9F33);
auto& cap = kernel_db[TERMINAL_CAPABILITIES_9F33];
cap[0] = kernel_db[CARD_DATA_INPUT_CAPABILITY_DF8117][0];
cap[1] = 0;
cap[2] = kernel_db[SECURITY_CAPABILITY_DF811F][0];
// s1_10
kernel_db.initialize(DATA_NEEDED_DF8106);
kernel_db.initialize(DATA_TO_SEND_FF8104);
auto& data_needed = kernel_db[DATA_NEEDED_DF8106];
if (kernel_db.has_non_empty_tag(TAGS_TO_READ_DF8112)) {
tag_list_deserialize(kernel_db[TAGS_TO_READ_DF8112.id],
kernel_db.tags_to_read_yet);
}
if (kernel_db.has_empty_tag(TAGS_TO_READ_DF8112.id)) {
auto tag = tag_in_bytes(TAGS_TO_READ_DF8112.id);
std::copy(tag.begin(), tag.end(), std::back_inserter(data_needed));
};
// s1_11
secure_vector pdol_list{};
bool pdol_data_missing = false;
if (kernel_db.has_tag(PDOL_9F38))
pdol_data_missing = !build_dol(PDOL_9F38.id, kernel_db[PDOL_9F38], kernel_db, pdol_list, data_needed);
if (!pdol_data_missing) {
// s1_13
kernel_db.insert(tlv_obj{PDOL_RELATED_DATA_DF8111.id, pdol_list});
pdol_list = make_tlv(0x83, pdol_list);
emvl2->send_apdu(apdu_builder::build(COMMANDS::GPO).data(pdol_list).le(0).to_bytes());
}
// S1_15
drain_tags_to_read_yet();
auto& data_to_send = kernel_db[DATA_TO_SEND_FF8104];
// s1_16
kernel_db.initialize(IDS_STATUS_DF8128);
kernel_db.initialize(DS_SUMMARY_STATUS_DF810B);
kernel_db.initialize(POST_GEN_AC_PUT_DATA_STATUS_DF810E);
kernel_db.initialize(PRE_GEN_AC_PUT_DATA_STATUS_DF810F);
kernel_db.initialize(DS_DIGEST_H_DF61);
kernel_db.tags_to_write_yet_after_gen_ac.initialize();
kernel_db.tags_to_write_yet_before_gen_ac.initialize();
if (kernel_db.has_non_empty_tag(TAGS_TO_WRITE_BEFORE_GEN_AC_FF8102)) {
kernel_db.tags_to_write_yet_before_gen_ac.append(kernel_db[TAGS_TO_WRITE_BEFORE_GEN_AC_FF8102]);
}
if (kernel_db.has_non_empty_tag(TAGS_TO_WRITE_AFTER_GEN_AC_FF8103)) {
kernel_db.tags_to_write_yet_after_gen_ac.append(kernel_db[TAGS_TO_WRITE_AFTER_GEN_AC_FF8103]);
}
if (kernel_db.has_empty_tag(TAGS_TO_WRITE_BEFORE_GEN_AC_FF8102.id)) {
auto tag = tag_in_bytes(TAGS_TO_WRITE_BEFORE_GEN_AC_FF8102.id);
std::copy(tag.begin(), tag.end(), std::back_inserter(data_needed));
}
if (kernel_db.has_empty_tag(TAGS_TO_WRITE_AFTER_GEN_AC_FF8103.id)) {
auto tag = tag_in_bytes(TAGS_TO_WRITE_AFTER_GEN_AC_FF8103.id);
std::copy(tag.begin(), tag.end(), std::back_inserter(data_needed));
}
if (kernel_db.has_non_empty_tag(DSVN_TERM_DF810D) &&
kernel_db.has_tag(DS_REQUESTED_OPERATOR_ID_9F5C)) {
// s1_18
if (kernel_db.has_tag(DS_ID_9F5E)) {
auto tlv = kernel_db.to_tlv(DS_ID_9F5E);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
} else {
auto tlv = make_tlv(DS_ID_9F5E.id, secure_vector(1));
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
if (kernel_db.has_tag(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D)) {
auto tlv = kernel_db.to_tlv(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
} else {
auto tlv = make_tlv(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D.id, secure_vector(1));
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
};
// s1_19
if (kernel_db.has_non_empty_tag(KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D) &&
kernel_db.has_non_empty_tag(DS_ID_9F5E)) {
auto& v = kernel_db[KERNEL2::APPLICATION_CAPABILITIES_INFO_9F5D];
auto version = KERNEL2::TAG_APPLICATION_CAPABILITIES_INFO_9F5D::get_ds_version(v);
if (version == 1 || version == 2) {
// s1_20
kernel_db.set_bit(IDS_STATUS_DF8128, TAG_IDS_STATUS_DF8128::read);
};
};
}
// s1_21
if (pdol_data_missing) {
// s1_22
send_dek();
// s1_23
enter_state(&s2_wait_for_pdol_data);
start_time_out();
} else {
enter_state(&s3_wait_for_gpo_resp);
}
return KSTATUS::DEFAULT;
};
std::function<KSTATUS(SIGNAL, const secure_vector*)> s3_wait_for_gpo_resp = [&](SIGNAL sig, const secure_vector* param) {
switch (sig) {
case SIGNAL::RA: {
auto& apdu = *param;
uint8_t sw1 = apdu[apdu.size() - 2];
uint8_t sw2 = apdu[apdu.size() - 1];
if (sw1 != 0x90 || sw2 != 0x00) {
//S3.9.1, 2
pr_debug("gpo response failure\n");
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::SELECT_NEXT)
.field_off()
.start(RESTART_POINT::C)
.error(sw1, sw2)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.post());
return KSTATUS::EXIT_KERNEL;
} else {
// s3.10
auto parser = [&](uint32_t tag, auto begin, auto end, bool constructed) mutable -> bool {
if (tag == 0x80) { // format 1, always AIP (2 bytes) + AFL
if (end - begin >= 2) {
auto p = begin + 2;
return kernel_db.save_tlv_from_card(AIP_82.id, begin, p, false) &&
kernel_db.save_tlv_from_card(AFL_94.id, p, end, false);
} else {
return false;
};
} else {
return kernel_db.save_tlv_from_card(tag, begin, end, constructed);
};
};
if (!tlv_visit(apdu.begin(), apdu.end() - 2, parser)) {
// s3.12
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.ui(ui_message_id::INSERT_SWIPE_TRY_ANOTHER, ui_status_id::NOT_READY)
.ui_on_outcome()
.error(L2_ERROR::PARSING_ERROR)
.msg_on_error(ui_message_id::INSERT_SWIPE_TRY_ANOTHER)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.pack(USER_INTERFACE_REQUEST_DATA_DF8116)
.post());
return KSTATUS::EXIT_KERNEL;
} else if (!kernel_db.has_tag(AIP_82) || !kernel_db.has_tag(AFL_94)) {
// s3.14
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.ui(ui_message_id::INSERT_SWIPE_TRY_ANOTHER, ui_status_id::NOT_READY)
.ui_on_outcome()
.error(L2_ERROR::CARD_DATA_MISSING)
.msg_on_error(ui_message_id::INSERT_SWIPE_TRY_ANOTHER)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.pack(USER_INTERFACE_REQUEST_DATA_DF8116)
.post());
return KSTATUS::EXIT_KERNEL;
};
auto& kcfg = kernel_db[KERNEL_CONFIGURATION_DF811B];
pr_debug("current kernel config\n");
dump(KERNEL_CONFIGURATION_DF811B, kcfg);
pr_debug("aip\n");
dump(AIP_82, kernel_db[AIP_82]);
// s3.15
if (!v_get_bit(kcfg, TAG_KERNEL_CONFIGURATION_DF811B::emv_mode_contactless_not_supported)) {
// s3.16
auto& aip = kernel_db[AIP_82];
if (v_get_bit(aip, TAG_AIP_82::emv_mode_supported)) {
return handle_emv_mode();
}
}
if (v_get_bit(kcfg, TAG_KERNEL_CONFIGURATION_DF811B::magstripe_mode_contactless_not_supported)) {
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.ui(ui_message_id::INSERT_SWIPE_TRY_ANOTHER, ui_status_id::NOT_READY)
.ui_on_outcome()
.error(L2_ERROR::MS_NOT_SUPPORTED)
.msg_on_error(ui_message_id::INSERT_SWIPE_TRY_ANOTHER)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.pack(USER_INTERFACE_REQUEST_DATA_DF8116)
.post());
return KSTATUS::EXIT_KERNEL;
} else {
return handle_ms_mode();
}
};
break;
};
case SIGNAL::STOP: {
// S3.7
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.error(L3_ERROR::STOP)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.post());
return KSTATUS::EXIT_KERNEL;
}
case SIGNAL::DET:
// S3.3
kernel_db.update_with_det_data(*param);
break;
case SIGNAL::L1RSP: {
//S3.5
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::TRY_AGAIN)
.start(RESTART_POINT::B)
.error(static_cast<L1_ERROR>((*param)[0]))
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.post());
return KSTATUS::EXIT_KERNEL;
}
default:
break;
};
return KSTATUS::DEFAULT;
};
// s3.30
KSTATUS handle_emv_mode() {
pr_debug("handling EMV mode\n");
secure_vector default_one{0x08, 0x01, 0x01, 0x00};
auto& afl = kernel_db[AFL_94];
auto& aip = kernel_db[AIP_82];
auto& kcfg = kernel_db[KERNEL_CONFIGURATION_DF811B];
if (afl.size() >= 4 &&
(secure_vector(afl.begin(), afl.begin() + 4) == default_one) &&
!v_get_bit(kcfg, TAG_KERNEL_CONFIGURATION_DF811B::magstripe_mode_contactless_not_supported)) {
//S3.32
kernel_db.afl = secure_vector(afl.cbegin() + 4, afl.cend());
} else {
//S3.31
kernel_db.afl = afl;
}
if (v_get_bit(aip, TAG_AIP_82::on_device_cardholder_verification_supported) &&
v_get_bit(kcfg, TAG_KERNEL_CONFIGURATION_DF811B::on_device_verification_supported)) {
kernel_db.contactless_transaction_limit = kernel_db[READER_CONTACTLESS_TRANSACTION_LIMIT_ON_DEVICE_CVM_DF8125];
} else {
kernel_db.contactless_transaction_limit = kernel_db[READER_CONTACTLESS_TRANSACTION_LIMIT_NO_ON_DEVICE_CVM_DF8124];
};
if (v_get_bit(aip, TAG_AIP_82::rrp_supported) &&
v_get_bit(kcfg, TAG_KERNEL_CONFIGURATION_DF811B::rrp_supported)) {
return send_rrp_data();
}
auto& tvr = kernel_db[TVR_95];
TAG_TVR_95::set_rrp(tvr, TAG_TVR_95::RRP_STATUS::NOT_PERFORMED);
return s3R1();
};
KSTATUS s3R1() {
auto active_tag = kernel_db.tags_to_read_yet.begin();
if (active_tag == kernel_db.tags_to_read_yet.end()) {
// READ Data
if (kernel_db.afl.size() == 0) {
// S3R1.6
outcome_builder builder{kernel_db};
emvl2->generate_outcome(builder.status(OUTCOME_TYPE::END_APPLICATION)
.ui(ui_message_id::INSERT_SWIPE_TRY_ANOTHER, ui_status_id::NOT_READY)
.ui_on_outcome()
.error(L2_ERROR::CARD_DATA_ERROR)
.msg_on_error(ui_message_id::INSERT_SWIPE_TRY_ANOTHER)
.initialize(DISCRETIONARY_DATA_FF8106)
.add_to_list(ERROR_INDICATION_DF8115, DISCRETIONARY_DATA_FF8106)
.pack(OUTCOME_PARAMETER_SET_DF8129)
.pack(DISCRETIONARY_DATA_FF8106)
.pack(USER_INTERFACE_REQUEST_DATA_DF8116)
.post());
return KSTATUS::EXIT_KERNEL;
}
kernel_db.init_card_read();
kernel_db.read_next_record(emvl2);
enter_state(&s4_wait_for_emv_read_record);
} else {
// GET Data
uint8_t p1 = static_cast<uint8_t>((*active_tag >> 8) & 0xFF);
uint8_t p2 = static_cast<uint8_t>((*active_tag) & 0xFF);
emvl2->send_apdu(apdu_builder::build(COMMANDS::GET_DATA).p1(p1).p2(p2).le(0).to_bytes());
enter_state(&s5_wait_for_get_data);
};
// TODO
// S3R1.10
if (kernel_db.get_bit(IDS_STATUS_DF8128, TAG_IDS_STATUS_DF8128::read)) {
auto& data_to_send = kernel_db[DATA_TO_SEND_FF8104];
if (kernel_db.has_non_empty_tag(DS_SLOT_AVAILABILITY_9F5F)) {
auto tlv = kernel_db.to_tlv(DS_SLOT_AVAILABILITY_9F5F);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
if (kernel_db.has_non_empty_tag(DS_SUMMARY_1_9F7D)) {
auto tlv = kernel_db.to_tlv(DS_SUMMARY_1_9F7D);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
if (kernel_db.has_non_empty_tag(DS_UNPREDICTABLE_NUMBER_9F7F)) {
auto tlv = kernel_db.to_tlv(DS_UNPREDICTABLE_NUMBER_9F7F);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
if (kernel_db.has_non_empty_tag(DS_SLOT_MANAGEMENT_CONTROL_9F6F)) {
auto tlv = kernel_db.to_tlv(DS_SLOT_MANAGEMENT_CONTROL_9F6F);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
if (kernel_db.has_tag(DS_ODS_CARD_9F54)) {
auto tlv = kernel_db.to_tlv(DS_ODS_CARD_9F54);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
}
auto tlv = kernel_db.to_tlv(UNPREDICTABLE_NUMBER_9F37);
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
if ((kernel_db.has_non_empty_tag(DS_SLOT_AVAILABILITY_9F5F) &&
kernel_db.has_non_empty_tag(DS_SUMMARY_1_9F7D) &&
kernel_db.has_non_empty_tag(DS_UNPREDICTABLE_NUMBER_9F7F) &&
!kernel_db.has_tag(DS_ODS_CARD_9F54)) ||
(kernel_db.has_non_empty_tag(DS_SUMMARY_1_9F7D) &&
kernel_db.has_tag(DS_ODS_CARD_9F54))) {
// goto S3R1.14
} else {
//S3R1.13
kernel_db.clear_bit(IDS_STATUS_DF8128, TAG_IDS_STATUS_DF8128::read);
}
}
//S3R1.14
drain_tags_to_read_yet();
if (kernel_db.has_non_empty_tag(DATA_NEEDED_DF8106) ||
(kernel_db.has_non_empty_tag(DATA_TO_SEND_FF8104) &&
kernel_db.tags_to_read_yet.size() == 0)) {
// S3R1.16
send_dek();
}
// S3R1.17, 18
if ((kernel_db.get_bit(AIP_82, TAG_AIP_82::cda_supported) &&
kernel_db.get_bit(TERMINAL_CAPABILITIES_9F33, TAG_TERMINAL_CAPABILITIES_9F33::cda)) ||
kernel_db.get_bit(IDS_STATUS_DF8128, TAG_IDS_STATUS_DF8128::read)) {
// S3R1.19
pr_debug("oda status, set cda required\n");
kernel_db.oda_status.cda = 1;
} else {
// S3R1.20
kernel_db.set_bit(TVR_95, TAG_TVR_95::oda_not_performed);
}
return KSTATUS::DEFAULT;
};
void drain_tags_to_read_yet(bool send_empty = false) {
auto& data_to_send = kernel_db[DATA_TO_SEND_FF8104];
std::vector<uint32_t> to_remove{};
for (auto tag : kernel_db.tags_to_read_yet) {
if (kernel_db.has_non_empty_tag(tag)) {
auto tlv = kernel_db.to_tlv(tag);
pr_debug("data to send : ", tlv, "\n");
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
to_remove.push_back(tag);
} else if (send_empty && find_tag_info(tag) != nullptr) {
auto tlv = make_tlv(tag, secure_vector{});
pr_debug("data to send : ", tlv, "\n");
std::copy(tlv.begin(), tlv.end(), back_inserter(data_to_send));
to_remove.push_back(tag);
}
};
for (auto t : to_remove) {