aboutsummaryrefslogtreecommitdiffstats
path: root/epan/dissectors/packet-iso14443.c
blob: 1c58add1d21377c5614bef50bc5b27cab2c1cd20 (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
/* packet-iso14443.c
 * Routines for ISO14443 dissection
 * Copyright 2015, Martin Kaiser <martin@kaiser.cx>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/* ISO14443 is a set of standards describing the communication between a
 * card reader and a contactless smartcard.
 *
 * This dissector handles the initialization messages defined in
 * ISO14443-3 and the activation and protocol messages from ISO14443-4
 *
 * The standards are available as "final committee drafts" from
 * http://wg8.de/wg8n1496_17n3613_Ballot_FCD14443-3.pdf
 * http://wg8.de/wg8n1344_17n3269_Ballot_FCD14443-4.pdf
 *
 * The pcap input format for this dissector is documented at
 * http://www.kaiser.cx/pcap-iso14443.html.
 */


#include "config.h"
#include <math.h>
#include <epan/expert.h>
#include <epan/packet.h>
#include <epan/tfs.h>
#include <wiretap/wtap.h>

/* Proximity Integrated Circuit Card, i.e. the smartcard */
#define ADDR_PICC "PICC"
/* Proximity Coupling Device, i.e. the card reader */
#define ADDR_PCD  "PCD"

/* event byte in the PCAP ISO14443 pseudo-header */
#define ISO14443_EVT_DATA_PICC_TO_PCD              0xFF
#define ISO14443_EVT_DATA_PCD_TO_PICC              0xFE
#define ISO14443_EVT_FIELD_OFF                     0xFD
#define ISO14443_EVT_FIELD_ON                      0xFC
#define ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED  0xFB
#define ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED  0xFA

static const value_string iso14443_event[] = {
    { ISO14443_EVT_DATA_PICC_TO_PCD, "Data transfer PICC -> PCD" },
    { ISO14443_EVT_DATA_PCD_TO_PICC, "Data transfer PCD -> PICC" },
    { ISO14443_EVT_FIELD_ON,         "Field on" },
    { ISO14443_EVT_FIELD_OFF,        "Field off" },
    { ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED,
        "Data transfer PICC -> PCD (CRC bytes were dropped)" },
    { ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED,
        "Data transfer PCD -> PICC (CRC bytes were dropped)" },
    { 0, NULL }
};

#define IS_DATA_TRANSFER(e) \
    ((e)==ISO14443_EVT_DATA_PICC_TO_PCD || \
     (e)==ISO14443_EVT_DATA_PCD_TO_PICC || \
     (e)==ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED || \
     (e)==ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED)

typedef enum _iso14443_cmd_t {
    CMD_TYPE_WUPA,    /* REQA, WUPA or ATQA */
    CMD_TYPE_WUPB,    /* REQB, WUPB or ATQB */
    CMD_TYPE_HLTA,
    CMD_TYPE_UID,     /* anticollision or selection commands
                         and their answers */
    CMD_TYPE_ATS,     /* RATS or ATS */
    CMD_TYPE_ATTRIB,  /* Attrib or the answer to Attrib */
    CMD_TYPE_BLOCK,   /* I-, R- or S-blocks */
    CMD_TYPE_UNKNOWN
} iso14443_cmd_t;

static wmem_tree_t *transactions = NULL;

typedef struct _iso14443_transaction_t {
    guint32 rqst_frame;
    guint32 resp_frame;
    iso14443_cmd_t cmd;
} iso14443_transaction_t;

static const value_string iso14443_short_frame[] = {
    { 0x26 , "REQA" },
    { 0x52 , "WUPA" },
    { 0, NULL }
};

#define I_BLOCK_TYPE 0x00
#define R_BLOCK_TYPE 0x02
#define S_BLOCK_TYPE 0x03
static const value_string iso14443_block_type[] = {
    { I_BLOCK_TYPE , "I-block" },
    { R_BLOCK_TYPE , "R-block" },
    { S_BLOCK_TYPE , "S-block" },
    { 0, NULL }
};

const true_false_string tfs_wupb_reqb = { "WUPB", "REQB" };
const true_false_string tfs_compliant_not_compliant = { "Compliant", "Not compliant" };
const true_false_string tfs_incomplete_complete = { "Incomplete", "Complete" };

#define CT_BYTE 0x88

#define CRC_LEN 2

void proto_register_iso14443(void);
void proto_reg_handoff_iso14443(void);

static int proto_iso14443 = -1;

static dissector_handle_t iso14443_handle;

static dissector_table_t iso14443_cmd_type_table;

static int ett_iso14443 = -1;
static int ett_iso14443_hdr = -1;
static int ett_iso14443_msg = -1;
static int ett_iso14443_pcb = -1;

static int hf_iso14443_hdr_ver = -1;
static int hf_iso14443_event = -1;
static int hf_iso14443_len_field = -1;
static int hf_iso14443_resp_to = -1;
static int hf_iso14443_resp_in = -1;
static int hf_iso14443_short_frame = -1;
static int hf_iso14443_propr_coding = -1;
static int hf_iso14443_uid_size = -1;
static int hf_iso14443_bit_frame_anticoll = -1;
static int hf_iso14443_apf = -1;
static int hf_iso14443_afi = -1;
static int hf_iso14443_ext_atqb = -1;
/* if this is present but unset, we have a REQB */
static int hf_iso14443_wupb = -1;
static int hf_iso14443_n = -1;
static int hf_iso14443_atqb_start = -1;
static int hf_iso14443_app_data = -1;
static int hf_iso14443_proto_info = -1;
static int hf_iso14443_hlta = -1;
static int hf_iso14443_sel = -1;
static int hf_iso14443_nvb = -1;
static int hf_iso14443_4_compliant = -1;
static int hf_iso14443_uid_complete = -1;
static int hf_iso14443_ct = -1;
static int hf_iso14443_uid_cln = -1;
static int hf_iso14443_bcc = -1;
static int hf_iso14443_rats_start = -1;
static int hf_iso14443_fsdi = -1;
static int hf_iso14443_cid = -1;
static int hf_iso14443_tl = -1;
static int hf_iso14443_attrib_start = -1;
static int hf_iso14443_pupi = -1;
static int hf_iso14443_param1 = -1;
static int hf_iso14443_param2 = -1;
static int hf_iso14443_param3 = -1;
static int hf_iso14443_param4 = -1;
static int hf_iso14443_mbli = -1;
static int hf_iso14443_pcb = -1;
static int hf_iso14443_block_type = -1;
static int hf_iso14443_i_blk_chaining = -1;
static int hf_iso14443_cid_following = -1;
static int hf_iso14443_nad_following = -1;
static int hf_iso14443_blk_num = -1;
static int hf_iso14443_inf = -1;
static int hf_iso14443_crc = -1;

static expert_field ei_iso14443_unknown_cmd = EI_INIT;


static int
dissect_iso14443_cmd_type_wupa(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data _U_)
{
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;
    guint8 uid_bits, uid_size = 0;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        const gchar *sf_str;
        sf_str = try_val_to_str(
            tvb_get_guint8(tvb, 0), iso14443_short_frame);
        proto_tree_add_item(tree, hf_iso14443_short_frame,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        if (sf_str) {
            proto_item_append_text(ti, ": %s", sf_str);
            col_set_str(pinfo->cinfo, COL_INFO, sf_str);
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        col_set_str(pinfo->cinfo, COL_INFO, "ATQA");
        proto_item_append_text(ti, ": ATQA");

        proto_tree_add_item(tree, hf_iso14443_propr_coding,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;

        uid_bits = (tvb_get_guint8(tvb, offset) & 0xC0) >> 6;
        if (uid_bits == 0x00)
            uid_size = 4;
        else if (uid_bits == 0x01)
            uid_size = 7;
        else if (uid_bits == 0x02)
            uid_size = 10;
        /* XXX- expert info for invalid uid size */
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_uid_size,
                tvb, offset*8, 2, uid_size, "%d", uid_size);
        proto_tree_add_item(tree, hf_iso14443_bit_frame_anticoll,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
    }

    return offset;
}


static int
dissect_iso14443_cmd_type_wupb(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;
    guint8 param;
    const char *msg_type;
    gint rem_len;
    guint8 proto_info_len = 0;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        proto_tree_add_item(tree, hf_iso14443_apf,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_afi,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;

        param = tvb_get_guint8(tvb, offset);
        proto_tree_add_item(tree, hf_iso14443_ext_atqb,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(tree, hf_iso14443_wupb,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        msg_type = (param & 0x08) ?
            tfs_wupb_reqb.true_string : tfs_wupb_reqb.false_string;
        col_set_str(pinfo->cinfo, COL_INFO, msg_type);
        proto_item_append_text(ti, ": %s", msg_type);
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_n,
                tvb, offset*8+5, 3, (guint8)pow(2, param&0x07),
                "%d", (guint8)pow(2, param&0x07));
        offset++;

        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        col_set_str(pinfo->cinfo, COL_INFO, "ATQB");
        proto_item_append_text(ti, ": ATQB");
        proto_tree_add_item(tree, hf_iso14443_atqb_start,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;

        proto_tree_add_item(tree, hf_iso14443_pupi,
                tvb, offset, 4, ENC_BIG_ENDIAN);
        offset += 4;

        /* XXX - add a subtree and dissect the components */
        proto_tree_add_item(tree, hf_iso14443_app_data,
                tvb, offset, 4, ENC_BIG_ENDIAN);
        offset += 4;

        /* we should not link the protocol info length to the "extended
           ATQB supported" field in the WUPB - even if the PCD supports
           extended ATQB, the PICC may still send a basic one */
        rem_len = tvb_reported_length_remaining(tvb, offset);
        if (!crc_dropped) {
            if (rem_len == 5 || rem_len == 6)
                proto_info_len = rem_len - 2;
        }
        else if (rem_len == 3 || rem_len == 4)
            proto_info_len = rem_len;

        /* XXX - exception if (proto_info_len==0) */
        /* XXX - add a subtree and dissect the components */
        proto_tree_add_item(tree, hf_iso14443_proto_info,
                tvb, offset, proto_info_len, ENC_BIG_ENDIAN);
        offset += proto_info_len;

        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }

    return offset;
}


static int
dissect_iso14443_cmd_type_hlta(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;

    col_set_str(pinfo->cinfo, COL_INFO, "HLTA");
    proto_item_append_text(ti, ": HLTA");
    proto_tree_add_item(tree, hf_iso14443_hlta,
            tvb, offset, 2, ENC_BIG_ENDIAN);
    offset += 2;

    /* XXX - is the CRC calculation different for type A and type B? */
    if (!crc_dropped) {
        proto_tree_add_item(tree, hf_iso14443_crc,
                tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
        offset += CRC_LEN;
    }

    return offset;
}


static int dissect_iso14443_uid_part(
        tvbuff_t *tvb, gint offset, packet_info *pinfo _U_, proto_tree *tree)
{
    guint8 uid_len = 4;

    if (tvb_get_guint8(tvb, offset) == CT_BYTE) {
        proto_tree_add_item(tree, hf_iso14443_ct, tvb, offset, 1, ENC_NA);
        offset++;
        uid_len = 3;
    }

    proto_tree_add_item(tree, hf_iso14443_uid_cln, tvb, offset, uid_len, ENC_NA);
    offset += uid_len;
    proto_tree_add_item(tree, hf_iso14443_bcc, tvb, offset, 1, ENC_BIG_ENDIAN);
    offset++;

    return offset;
}


static int
dissect_iso14443_cmd_type_uid(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        proto_tree_add_item(tree, hf_iso14443_sel,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_nvb,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;

        if (tvb_reported_length_remaining(tvb, offset) == 0) {
            col_set_str(pinfo->cinfo, COL_INFO, "Anticollision");
            proto_item_append_text(ti, ": Anticollision");
        }
        else {
            col_set_str(pinfo->cinfo, COL_INFO, "Select");
            proto_item_append_text(ti, ": Select");
            offset = dissect_iso14443_uid_part(tvb, offset, pinfo, tree);
            if (!crc_dropped) {
                proto_tree_add_item(tree, hf_iso14443_crc,
                        tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
                offset += CRC_LEN;
            }
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        if (tvb_reported_length_remaining(tvb, offset) <= 3) {
            col_set_str(pinfo->cinfo, COL_INFO, "SAK");
            proto_item_append_text(ti, ": SAK");
            proto_tree_add_item(tree, hf_iso14443_4_compliant,
                tvb, offset, 1, ENC_BIG_ENDIAN);
            proto_tree_add_item(tree, hf_iso14443_uid_complete,
                tvb, offset, 1, ENC_BIG_ENDIAN);
            offset++;
            if (!crc_dropped) {
                proto_tree_add_item(tree, hf_iso14443_crc,
                        tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
                offset += CRC_LEN;
            }
        }
        else if (tvb_reported_length_remaining(tvb, offset) == 5) {
            col_set_str(pinfo->cinfo, COL_INFO, "UID");
            offset = dissect_iso14443_uid_part(tvb, offset, pinfo, tree);
        }
    }

    return offset;
}


static int
dissect_iso14443_cmd_type_ats(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;
    guint8 fsdi, cid;
    guint8 tl;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        col_set_str(pinfo->cinfo, COL_INFO, "RATS");
        proto_item_append_text(ti, ": RATS");

        proto_tree_add_item(tree, hf_iso14443_rats_start,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        fsdi = tvb_get_guint8(tvb, offset) >> 4;
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_fsdi,
                tvb, offset*8, 4, fsdi, "%d", fsdi);
        cid = tvb_get_guint8(tvb, offset) & 0x0F;
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_cid,
                tvb, offset*8+4, 4, cid, "%d", cid);
        offset++;
        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        col_set_str(pinfo->cinfo, COL_INFO, "ATS");
        proto_item_append_text(ti, ": ATS");
        tl = tvb_get_guint8(tvb, offset);
        proto_tree_add_item(tree, hf_iso14443_tl,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        /* TL includes itself */
        offset += tl;
        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }

    return offset;
}


static int
dissect_iso14443_cmd_type_attrib(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;
    gint hl_inf_len, hl_resp_len;
    guint8 mbli, cid;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        col_set_str(pinfo->cinfo, COL_INFO, "Attrib");
        proto_item_append_text(ti, ": Attrib");

        proto_tree_add_item(tree, hf_iso14443_attrib_start,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_pupi,
                tvb, offset, 4, ENC_BIG_ENDIAN);
        offset += 4;
        /* XXX - subtree, details for each parameter */
        proto_tree_add_item(tree, hf_iso14443_param1,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_param2,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_param3,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        proto_tree_add_item(tree, hf_iso14443_param4,
                tvb, offset, 1, ENC_BIG_ENDIAN);
        offset++;
        hl_inf_len = crc_dropped ?
            tvb_reported_length_remaining(tvb, offset) :
            tvb_reported_length_remaining(tvb, offset) - CRC_LEN;
        if (hl_inf_len > 0) {
            offset += hl_inf_len;
        }
        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        col_set_str(pinfo->cinfo, COL_INFO, "Response to Attrib");
        proto_item_append_text(ti, ": Response to Attrib");

        mbli = tvb_get_guint8(tvb, offset) >> 4;
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_mbli,
                tvb, offset*8, 4, mbli, "%d", mbli);
        cid = tvb_get_guint8(tvb, offset) & 0x0F;
        proto_tree_add_uint_bits_format_value(tree, hf_iso14443_cid,
                tvb, offset*8+4, 4, cid, "%d", cid);
        offset++;

        hl_resp_len = crc_dropped ?
            tvb_reported_length_remaining(tvb, offset) :
            tvb_reported_length_remaining(tvb, offset) - CRC_LEN;
        if (hl_resp_len > 0) {
            offset += hl_resp_len;
        }

        if (!crc_dropped) {
            proto_tree_add_item(tree, hf_iso14443_crc,
                    tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
            offset += CRC_LEN;
        }
    }

    return offset;
}


static int
dissect_iso14443_cmd_type_block(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, void *data)
{
    gboolean crc_dropped = (gboolean)GPOINTER_TO_UINT(data);
    proto_item *ti = proto_tree_get_parent(tree);
    gint offset = 0;
    guint8 pcb, block_type;
    const gchar *bt_str;
    proto_item *pcb_ti;
    proto_tree *pcb_tree;
    gboolean has_cid, has_nad = FALSE;
    guint8 inf_len;

    pcb = tvb_get_guint8(tvb, offset);
    block_type = (pcb & 0xC0) >> 6;
    bt_str = try_val_to_str(block_type, iso14443_block_type);
    has_cid = ((pcb & 0x08) != 0);

    pcb_ti = proto_tree_add_item(tree, hf_iso14443_pcb,
            tvb, offset, 1, ENC_BIG_ENDIAN);
    pcb_tree = proto_item_add_subtree(pcb_ti, ett_iso14443_pcb);
    proto_tree_add_item(pcb_tree, hf_iso14443_block_type,
            tvb, offset, 1, ENC_BIG_ENDIAN);
    switch (block_type) {

    case I_BLOCK_TYPE:
        proto_tree_add_item(pcb_tree, hf_iso14443_i_blk_chaining,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        has_nad = ((pcb & 0x40) != 0);
        proto_tree_add_item(pcb_tree, hf_iso14443_nad_following,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(pcb_tree, hf_iso14443_blk_num,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        break;

    case R_BLOCK_TYPE:
        proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        proto_tree_add_item(pcb_tree, hf_iso14443_blk_num,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        break;

    case S_BLOCK_TYPE:
        proto_tree_add_item(pcb_tree, hf_iso14443_cid_following,
            tvb, offset, 1, ENC_BIG_ENDIAN);
        break;

    default:
        /* Report an error? b8 = 0, b7 = 1 */
        break;
    }
    if (bt_str) {
        proto_item_append_text(ti, ": %s", bt_str);
        col_set_str(pinfo->cinfo, COL_INFO, bt_str);
    }
    offset++;

    if (has_cid)
        offset++;
    if (has_nad)
        offset++;

    inf_len = crc_dropped ?
        tvb_reported_length_remaining(tvb, offset) :
        tvb_reported_length_remaining(tvb, offset) - 2;

    proto_tree_add_item(tree, hf_iso14443_inf,
            tvb, offset, inf_len, ENC_NA);
    offset += inf_len;

    if (!crc_dropped) {
        proto_tree_add_item(tree, hf_iso14443_crc,
                tvb, offset, CRC_LEN, ENC_BIG_ENDIAN);
        offset += CRC_LEN;
    }

    return offset;
}


static gint
iso14443_set_addrs(guint8 event, packet_info *pinfo)
{
    if (!IS_DATA_TRANSFER(event))
        return -1;

    /* pinfo->p2p_dir is from the perspective of the card reader,
       like in iso7816
       i.e sent is from reader to card, received is from card to reader */
    if (event == ISO14443_EVT_DATA_PCD_TO_PICC ||
            event == ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED) {

        set_address(&pinfo->src, AT_STRINGZ,
                (int)strlen(ADDR_PCD)+1, ADDR_PCD);
        set_address(&pinfo->dst, AT_STRINGZ,
                (int)strlen(ADDR_PICC)+1 , ADDR_PICC);

        pinfo->p2p_dir = P2P_DIR_SENT;
    }
    else {
        set_address(&pinfo->src, AT_STRINGZ,
                (int)strlen(ADDR_PICC)+1 , ADDR_PICC);
        set_address(&pinfo->dst, AT_STRINGZ,
                (int)strlen(ADDR_PCD)+1, ADDR_PCD);

        pinfo->p2p_dir = P2P_DIR_RECV;
    }

    return 1;
}


static inline gboolean
iso14443_block_pcb(guint8 byte)
{
    if ((byte & 0xE2) == 0x02) {
        /* I-block */
        return TRUE;
    }
    else if ((byte & 0xE6) == 0xA2) {
        /* R-block */
        return TRUE;
    }
    else if ((byte & 0xC7) == 0xC2) {
        /* S-block */
        return TRUE;
    }

    return FALSE;
}


static iso14443_transaction_t *
iso14443_get_transaction(packet_info *pinfo, proto_tree *tree)
{
    proto_item *it;
    iso14443_transaction_t *iso14443_trans = NULL;

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        if (PINFO_FD_VISITED(pinfo)) {
            iso14443_trans = (iso14443_transaction_t *)wmem_tree_lookup32(
                    transactions, PINFO_FD_NUM(pinfo));
            if (iso14443_trans && iso14443_trans->rqst_frame==PINFO_FD_NUM(pinfo) &&
                    iso14443_trans->resp_frame!=0) {
               it = proto_tree_add_uint(tree, hf_iso14443_resp_in,
                       NULL, 0, 0, iso14443_trans->resp_frame);
               PROTO_ITEM_SET_GENERATED(it);
            }
        }
        else {
            iso14443_trans = wmem_new(wmem_file_scope(), iso14443_transaction_t);
            iso14443_trans->rqst_frame = PINFO_FD_NUM(pinfo);
            iso14443_trans->resp_frame = 0;
            /* iso14443_trans->ctrl = ctrl; */
            wmem_tree_insert32(transactions,
                    iso14443_trans->rqst_frame, (void *)iso14443_trans);
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        iso14443_trans = (iso14443_transaction_t *)wmem_tree_lookup32_le(
                transactions, PINFO_FD_NUM(pinfo));
        if (iso14443_trans && iso14443_trans->resp_frame==0) {
            /* there's a pending request, this packet is the response */
            iso14443_trans->resp_frame = PINFO_FD_NUM(pinfo);
        }

        if (iso14443_trans && iso14443_trans->resp_frame == PINFO_FD_NUM(pinfo)) {
            it = proto_tree_add_uint(tree, hf_iso14443_resp_to,
                    NULL, 0, 0, iso14443_trans->rqst_frame);
            PROTO_ITEM_SET_GENERATED(it);
        }
    }

    return iso14443_trans;
}


static iso14443_cmd_t iso14443_get_cmd_type(
        tvbuff_t *tvb, packet_info *pinfo, iso14443_transaction_t *trans)
{
    guint8 first_byte;

    first_byte = tvb_get_guint8(tvb, 0);

    if (pinfo->p2p_dir == P2P_DIR_SENT) {
        if (tvb_reported_length(tvb) == 1) {
            return CMD_TYPE_WUPA;
        }
        else if (first_byte == 0x05) {
            return CMD_TYPE_WUPB;
        }
        else if (first_byte == 0x50) {
            return CMD_TYPE_HLTA;
        }
        else if (first_byte == 0x1D) {
            return CMD_TYPE_ATTRIB;
        }
        else if (first_byte == 0xE0) {
            return CMD_TYPE_ATS;
        }
        else if ((first_byte & 0xF8) == 0x90) {
            return CMD_TYPE_UID;
        }
        else if (iso14443_block_pcb(first_byte)) {
            return CMD_TYPE_BLOCK;
        }
    }
    else if (pinfo->p2p_dir == P2P_DIR_RECV) {
        if (trans->cmd != CMD_TYPE_UNKNOWN) {
            return trans->cmd;
        }
        else if (iso14443_block_pcb(first_byte)) {
            return CMD_TYPE_BLOCK;
        }

        /* we don't try to detect any response messages based on their
           length - depending on the log tool, two trailing CRC bytes
           may be added or not */
    }

    return CMD_TYPE_UNKNOWN;
}


static gint
dissect_iso14443_msg(tvbuff_t *tvb, packet_info *pinfo,
        proto_tree *tree, guint8 event)
{
    gboolean crc_dropped = FALSE;
    iso14443_transaction_t *iso14443_trans;
    iso14443_cmd_t cmd;
    proto_tree *msg_tree;
    gint ret;

    if (event == ISO14443_EVT_DATA_PICC_TO_PCD_CRC_DROPPED ||
            event == ISO14443_EVT_DATA_PCD_TO_PICC_CRC_DROPPED) {
        crc_dropped = TRUE;
    }

    iso14443_trans = iso14443_get_transaction(pinfo, tree);
    if (!iso14443_trans)
        return -1;

    cmd = iso14443_get_cmd_type(tvb, pinfo, iso14443_trans);
    if (cmd != CMD_TYPE_UNKNOWN)
        iso14443_trans->cmd = cmd;

    msg_tree = proto_tree_add_subtree(
            tree, tvb, 0, -1, ett_iso14443_msg, NULL, "Message");

    ret = dissector_try_uint_new(iso14443_cmd_type_table, cmd,
            tvb, pinfo, msg_tree, FALSE, GUINT_TO_POINTER((guint)crc_dropped));
    if (ret == 0) {
        proto_tree_add_expert(tree, pinfo, &ei_iso14443_unknown_cmd,
                tvb, 0, tvb_captured_length(tvb));
        ret = tvb_captured_length(tvb);
    }

    return ret;
}


static int dissect_iso14443(tvbuff_t *tvb,
        packet_info *pinfo, proto_tree *tree, void *data _U_)
{
    gint        packet_len;
    gint        offset = 0, offset_ver, offset_evt, offset_len_field;
    gint        ret;
    guint8      version, event;
    const gchar *event_str;
    guint16     len_field;
    proto_item *tree_ti;
    proto_tree *iso14443_tree, *hdr_tree;
    tvbuff_t    *payload_tvb;

    if (tvb_captured_length(tvb) < 4)
        return 0;

    offset_ver = offset;
    version = tvb_get_guint8(tvb, offset++);
    if (version != 0)
        return 0;

    offset_evt = offset;
    event = tvb_get_guint8(tvb, offset++);
    event_str = try_val_to_str(event, iso14443_event);
    if (!event_str)
        return 0;

    packet_len = tvb_reported_length(tvb);
    offset_len_field = offset;
    len_field = tvb_get_ntohs(tvb, offset);
    if (len_field != (packet_len-4))
        return 0;
    offset += 2;

    col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISO 14443");
    col_clear(pinfo->cinfo, COL_INFO);

    tree_ti = proto_tree_add_protocol_format(tree, proto_iso14443,
            tvb, 0, tvb_reported_length(tvb), "ISO 14443");
    iso14443_tree = proto_item_add_subtree(tree_ti, ett_iso14443);

    hdr_tree = proto_tree_add_subtree(iso14443_tree,
            tvb, 0, offset, ett_iso14443_hdr, NULL, "Pseudo header");

    proto_tree_add_item(hdr_tree, hf_iso14443_hdr_ver,
            tvb, offset_ver, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(hdr_tree, hf_iso14443_event,
            tvb, offset_evt, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(hdr_tree, hf_iso14443_len_field,
            tvb, offset_len_field, 2, ENC_BIG_ENDIAN);

    if (IS_DATA_TRANSFER(event)) {
        iso14443_set_addrs(event, pinfo);

        payload_tvb = tvb_new_subset_remaining(tvb, offset);
        ret = dissect_iso14443_msg(payload_tvb, pinfo, iso14443_tree, event);
        if (ret > 0)
            offset += ret;
    }
    else {
        col_set_str(pinfo->cinfo, COL_INFO, event_str);
    }

    return offset;
}


void
proto_register_iso14443(void)
{
    static hf_register_info hf[] = {
        { &hf_iso14443_hdr_ver,
            { "Version", "iso14443.hdr_version",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_event,
            { "Event", "iso14443.event",
                FT_UINT8, BASE_HEX, VALS(iso14443_event), 0, NULL, HFILL }
        },
        { &hf_iso14443_len_field,
            { "Length field", "iso14443.length_field",
                FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_resp_in,
            { "Response In", "iso14443.resp_in",
                FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL }
        },
        { &hf_iso14443_resp_to,
            { "Response To", "iso14443.resp_to",
                FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL }
        },
        { &hf_iso14443_short_frame,
            { "Short frame", "iso14443.short_frame",
                FT_UINT8, BASE_HEX, VALS(iso14443_short_frame), 0, NULL, HFILL }
        },
        { &hf_iso14443_propr_coding,
            { "Proprietary coding", "iso14443.propr_coding",
                FT_UINT8, BASE_HEX, NULL, 0x0F, NULL, HFILL }
        },
        { &hf_iso14443_uid_size,
            { "UID size", "iso14443.uid_size",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_bit_frame_anticoll,
            { "Bit frame anicollision", "iso14443.bit_frame_anticoll",
                FT_UINT8, BASE_HEX, NULL, 0x1F, NULL, HFILL }
        },
        { &hf_iso14443_apf,
            { "Anticollision prefix", "iso14443.apf",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_afi,
            { "Application Family Identifier", "iso14443.afi",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_ext_atqb,
            { "Extended ATQB", "iso14443.ext_atqb", FT_BOOLEAN, 8,
                TFS(&tfs_supported_not_supported), 0x10, NULL, HFILL }
        },
        { &hf_iso14443_wupb,
            { "WUPB/REQB", "iso14443.wupb",
                FT_BOOLEAN, 8, TFS(&tfs_wupb_reqb), 0x08, NULL, HFILL }
        },
        { &hf_iso14443_n,
            { "N", "iso14443.n",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_atqb_start,
            { "Start byte", "iso14443.atqb_start",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_app_data,
            { "Application data", "iso14443.application_data",
                FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_proto_info,
            { "Protocol info", "iso14443.protocol_info",
                FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_hlta,
            { "HLTA", "iso14443.hlta",
                FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_sel,
            { "SEL", "iso14443.sel",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_nvb,
            { "NVB", "iso14443.nvb",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_4_compliant,
            { "Compliant with ISO 14443-4", "iso14443.4_compliant", FT_BOOLEAN, 8,
                TFS(&tfs_compliant_not_compliant), 0x20, NULL, HFILL }
        },
        { &hf_iso14443_uid_complete,
            { "UID complete", "iso14443.uid_complete", FT_BOOLEAN, 8,
                TFS(&tfs_incomplete_complete), 0x04, NULL, HFILL }
        },
        { &hf_iso14443_ct,
            { "CT", "iso14443.ct",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_uid_cln,
            { "UID_CLn", "iso14443.uid_cln",
                FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_bcc,
            { "BCC", "iso14443.bcc",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_rats_start,
            { "Start byte", "iso14443.rats_start",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_fsdi,
            { "FSDI", "iso14443.fsdi",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_cid,
            { "CID", "iso14443.cid",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_tl,
            { "Length byte TL", "iso14443.tl",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_attrib_start,
            { "Start byte", "iso14443.attrib_start",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_pupi,
            { "PUPI", "iso14443.pupi",
                FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_param1,
            { "Param 1", "iso14443.param1",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_param2,
            { "Param 2", "iso14443.param2",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_param3,
            { "Param 3", "iso14443.param3",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_param4,
            { "Param 4", "iso14443.param4",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_mbli,
            { "MBLI", "iso14443.mbli",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_pcb,
            { "PCB", "iso14443.pcb",
                FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_block_type,
            { "Block type", "iso14443.block_type", FT_UINT8,
                BASE_HEX, VALS(iso14443_block_type), 0xC0, NULL, HFILL }
        },
        { &hf_iso14443_i_blk_chaining,
            { "Chaining", "iso14443.i_blk_chaining", FT_BOOLEAN, 8,
                TFS(&tfs_set_notset), 0x10, NULL, HFILL }
        },
        { &hf_iso14443_cid_following,
            { "CID following", "iso14443.cid_following", FT_BOOLEAN, 8,
                TFS(&tfs_true_false), 0x08, NULL, HFILL }
        },
        { &hf_iso14443_nad_following,
            { "NAD following", "iso14443.nad_following", FT_BOOLEAN, 8,
                TFS(&tfs_true_false), 0x04, NULL, HFILL }
        },
        { &hf_iso14443_blk_num,
            { "Block number", "iso14443.block_number",
                FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL }
        },
        { &hf_iso14443_inf,
            { "INF", "iso14443.inf",
                FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }
        },
        { &hf_iso14443_crc,
            { "CRC", "iso14443.crc",
                FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL }
        }
   };

    static gint *ett[] = {
        &ett_iso14443,
        &ett_iso14443_hdr,
        &ett_iso14443_msg,
        &ett_iso14443_pcb
    };

    static ei_register_info ei[] = {
        { &ei_iso14443_unknown_cmd,
            { "iso14443.cmd.unknown", PI_PROTOCOL, PI_WARN,
                "Unknown ISO1443 command", EXPFILL }
        }
    };

    expert_module_t* expert_iso14443;

    proto_iso14443 = proto_register_protocol(
            "ISO/IEC 14443", "ISO 14443", "iso14443");
    proto_register_field_array(proto_iso14443, hf, array_length(hf));
    proto_register_subtree_array(ett, array_length(ett));
    expert_iso14443 = expert_register_protocol(proto_iso14443);
    expert_register_field_array(expert_iso14443, ei, array_length(ei));

    iso14443_cmd_type_table = register_dissector_table(
            "iso14443.cmd_type", "ISO14443 Command Type",
            FT_UINT8, BASE_DEC, DISSECTOR_TABLE_ALLOW_DUPLICATE);

    iso14443_handle =
        register_dissector("iso14443", dissect_iso14443, proto_iso14443);

    transactions = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
}


void
proto_reg_handoff_iso14443(void)
{
  dissector_handle_t cmd_type_handle;

  dissector_add_uint("wtap_encap", WTAP_ENCAP_ISO14443, iso14443_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_wupa, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_WUPA, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_wupb, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_WUPB, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_hlta, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_HLTA, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_uid, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_UID, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_ats, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_ATS, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_attrib, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_ATTRIB, cmd_type_handle);

  cmd_type_handle = create_dissector_handle(
          dissect_iso14443_cmd_type_block, proto_iso14443);
  dissector_add_uint("iso14443.cmd_type", CMD_TYPE_BLOCK, cmd_type_handle);
}


/*
 * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */