-
Notifications
You must be signed in to change notification settings - Fork 439
/
nfc-mfultralight.c
768 lines (692 loc) · 21.4 KB
/
nfc-mfultralight.c
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
/*-
* Free/Libre Near Field Communication (NFC) library
*
* Libnfc historical contributors:
* Copyright (C) 2009 Roel Verdult
* Copyright (C) 2009-2013 Romuald Conty
* Copyright (C) 2010-2012 Romain Tartière
* Copyright (C) 2010-2017 Philippe Teuwen
* Copyright (C) 2012-2013 Ludovic Rousseau
* See AUTHORS file for a more comprehensive list of contributors.
* Additional contributors of this file:
* Copyright (C) 2013-2018 Adam Laurie
* Copyright (C) 2018-2019 Daniele Bruneo
*
* 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,
* this list of conditions and the following disclaimer.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Note that this license only applies on the examples, NFC library itself is under LGPL
*
*/
/**
* @file nfc-mfultralight.c
* @brief MIFARE Ultralight dump/restore tool
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif // HAVE_CONFIG_H
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <string.h>
#include <ctype.h>
#include <nfc/nfc.h>
#include "nfc-utils.h"
#include "mifare.h"
#define MAX_TARGET_COUNT 16
#define MAX_UID_LEN 10
#define EV1_NONE 0
#define EV1_UL11 1
#define EV1_UL21 2
#define NTAG_NONE 0
#define NTAG_213 1
#define NTAG_215 2
#define NTAG_216 3
static nfc_device *pnd;
static nfc_target nt;
static mifare_param mp;
static maxtag mtDump; // use the largest tag type for internal storage
static uint32_t uiBlocks = 0x10;
static uint32_t uiReadPages = 0;
static uint8_t iPWD[4] = { 0x0 };
static uint8_t iPACK[2] = { 0x0 };
static uint8_t iEV1Type = EV1_NONE;
static uint8_t iNTAGType = NTAG_NONE;
// special unlock command
uint8_t abtUnlock1[1] = { 0x40 };
uint8_t abtUnlock2[1] = { 0x43 };
// EV1 commands
uint8_t abtEV1[3] = { 0x60, 0x00, 0x00 };
uint8_t abtPWAuth[7] = { 0x1B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
//Halt command
uint8_t abtHalt[4] = { 0x50, 0x00, 0x00, 0x00 };
#define MAX_FRAME_LEN 264
static uint8_t abtRx[MAX_FRAME_LEN];
static int szRxBits;
static int szRx;
static const nfc_modulation nmMifare = {
.nmt = NMT_ISO14443A,
.nbr = NBR_106,
};
static void
print_success_or_failure(bool bFailure, uint32_t *uiOkCounter, uint32_t *uiFailedCounter)
{
printf("%c", (bFailure) ? 'f' : '.');
if (uiOkCounter)
*uiOkCounter += (bFailure) ? 0 : 1;
if (uiFailedCounter)
*uiFailedCounter += (bFailure) ? 1 : 0;
}
static bool
read_card(void)
{
uint32_t page;
bool bFailure = false;
uint32_t uiFailedPages = 0;
printf("Reading %d pages |", uiBlocks);
for (page = 0; page < uiBlocks; page += 4) {
// Try to read out the data block
if (nfc_initiator_mifare_cmd(pnd, MC_READ, page, &mp)) {
memcpy(mtDump.ul[page / 4].mbd.abtData, mp.mpd.abtData, uiBlocks - page < 4 ? (uiBlocks - page) * 4 : 16);
} else {
bFailure = true;
}
for (uint8_t i = 0; i < (uiBlocks - page < 4 ? uiBlocks - page : 4); i++) {
print_success_or_failure(bFailure, &uiReadPages, &uiFailedPages);
}
}
printf("|\n");
printf("Done, %d of %d pages read (%d pages failed).\n", uiReadPages, uiBlocks, uiFailedPages);
fflush(stdout);
// copy EV1 secrets to dump data
switch (iEV1Type) {
case EV1_UL11:
memcpy(mtDump.ul[4].mbc11.pwd, iPWD, 4);
memcpy(mtDump.ul[4].mbc11.pack, iPACK, 2);
break;
case EV1_UL21:
memcpy(mtDump.ul[9].mbc21a.pwd, iPWD, 4);
memcpy(mtDump.ul[9].mbc21b.pack, iPACK, 2);
break;
case EV1_NONE:
default:
break;
}
// copy NTAG secrets to dump data
switch (iNTAGType) {
case NTAG_213:
memcpy(mtDump.nt[43].mbc21356d.pwd, iPWD, 4);
memcpy(mtDump.nt[44].mbc21356e.pack, iPACK, 2);
break;
case NTAG_215:
memcpy(mtDump.nt[133].mbc21356d.pwd, iPWD, 4);
memcpy(mtDump.nt[134].mbc21356e.pack, iPACK, 2);
break;
case NTAG_216:
memcpy(mtDump.nt[229].mbc21356d.pwd, iPWD, 4);
memcpy(mtDump.nt[230].mbc21356e.pack, iPACK, 2);
break;
case NTAG_NONE:
default:
break;
}
return (!bFailure);
}
static bool
transmit_bits(const uint8_t *pbtTx, const size_t szTxBits)
{
// Transmit the bit frame command, we don't use the arbitrary parity feature
if ((szRxBits = nfc_initiator_transceive_bits(pnd, pbtTx, szTxBits, NULL, abtRx, sizeof(abtRx), NULL)) < 0)
return false;
return true;
}
static bool
transmit_bytes(const uint8_t *pbtTx, const size_t szTx)
{
if ((szRx = nfc_initiator_transceive_bytes(pnd, pbtTx, szTx, abtRx, sizeof(abtRx), 0)) < 0)
return false;
return true;
}
static bool
raw_mode_start(void)
{
// Configure the CRC
if (nfc_device_set_property_bool(pnd, NP_HANDLE_CRC, false) < 0) {
nfc_perror(pnd, "nfc_configure");
return false;
}
// Use raw send/receive methods
if (nfc_device_set_property_bool(pnd, NP_EASY_FRAMING, false) < 0) {
nfc_perror(pnd, "nfc_configure");
return false;
}
return true;
}
static bool
raw_mode_end(void)
{
// reset reader
// Configure the CRC
if (nfc_device_set_property_bool(pnd, NP_HANDLE_CRC, true) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool");
return false;
}
// Switch off raw send/receive methods
if (nfc_device_set_property_bool(pnd, NP_EASY_FRAMING, true) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool");
return false;
}
return true;
}
static bool
get_ev1_version(void)
{
if (!raw_mode_start())
return false;
iso14443a_crc_append(abtEV1, 1);
if (!transmit_bytes(abtEV1, 3)) {
raw_mode_end();
return false;
}
if (!raw_mode_end())
return false;
if (!szRx)
return false;
return true;
}
static bool
ev1_load_pwd(uint8_t target[4], const char *pwd)
{
unsigned int tmp[4];
if (sscanf(pwd, "%2x%2x%2x%2x", &tmp[0], &tmp[1], &tmp[2], &tmp[3]) != 4)
return false;
target[0] = tmp[0];
target[1] = tmp[1];
target[2] = tmp[2];
target[3] = tmp[3];
return true;
}
static bool
ev1_pwd_auth(uint8_t *pwd)
{
if (!raw_mode_start())
return false;
memcpy(&abtPWAuth[1], pwd, 4);
iso14443a_crc_append(abtPWAuth, 5);
if (!transmit_bytes(abtPWAuth, 7))
return false;
if (!raw_mode_end())
return false;
return true;
}
static bool
unlock_card(void)
{
if (!raw_mode_start())
return false;
iso14443a_crc_append(abtHalt, 2);
transmit_bytes(abtHalt, 4);
// now send unlock
if (!transmit_bits(abtUnlock1, 7)) {
return false;
}
if (!transmit_bytes(abtUnlock2, 1)) {
return false;
}
if (!raw_mode_end())
return false;
return true;
}
static bool check_magic(void)
{
bool directWrite = true;
// Try to read pages 0, 1, 2
uint8_t original_b0[12];
printf("Checking if UL badge is DirectWrite...\n");
if (nfc_initiator_mifare_cmd(pnd, MC_READ, 0, &mp)) {
memcpy(original_b0, mp.mpd.abtData, 12);
printf(" Original Block 0 (Pages 0-2): ");
for (int i = 0; i < 12; i++) {
printf("%02x", original_b0[i]);
}
printf("\n");
printf(" Original UID: %02x%02x%02x%02x%02x%02x%02x\n",
original_b0[0], original_b0[1], original_b0[2], original_b0[4], original_b0[5], original_b0[6], original_b0[7]);
} else {
printf("!\nError: unable to read block 0x%02x\n", 0);
directWrite = false;
}
printf(" Attempt to write Block 0 (pages 0-2) ...\n");
for (uint32_t page = 0; page <= 2; page++) {
printf(" Writing Page %i:", page);
memcpy(mp.mpd.abtData, original_b0 + page * 4, 4);
for (int i = 0; i < 4; i++) {
printf(" %02x", mp.mpd.abtData[i]);
}
printf("\n");
if (!nfc_initiator_mifare_cmd(pnd, MC_WRITE, page, &mp)) {
printf(" Failure writing Page %i\n", page);
directWrite = false;
break;
}
}
if (directWrite) {
printf(" Block 0 written successfully\n");
printf("Card is DirectWrite\n");
return true;
} else {
printf("Card is not DirectWrite\n");
return unlock_card();
}
}
static bool
write_card(bool write_otp, bool write_lock, bool write_dyn_lock, bool write_uid)
{
uint32_t uiBlock = 0;
bool bFailure = false;
uint32_t uiWrittenPages = 0;
uint32_t uiSkippedPages = 0;
uint32_t uiFailedPages = 0;
char buffer[BUFSIZ];
if (!write_otp) {
printf("Write OTP/Capability Bytes ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
write_otp = ((buffer[0] == 'y') || (buffer[0] == 'Y'));
}
// Lock Bytes are OTP if set, so warn
if (!write_lock) {
printf("Write Lock Bytes (Warning: OTP if set) ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
write_lock = ((buffer[0] == 'y') || (buffer[0] == 'Y'));
}
// NTAG and MF0UL21 have additional lock bytes
if (!write_dyn_lock && (iNTAGType != NTAG_NONE || iEV1Type == EV1_UL21)) {
printf("Write Dynamic Lock Bytes ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
write_dyn_lock = ((buffer[0] == 'y') || (buffer[0] == 'Y'));
}
if (!write_uid) {
printf("Write UID bytes (only for special writeable UID cards) ? [yN] ");
if (!fgets(buffer, BUFSIZ, stdin)) {
ERR("Unable to read standard input.");
}
write_uid = ((buffer[0] == 'y') || (buffer[0] == 'Y'));
}
/* We may need to skip 2 first pages. */
if (!write_uid) {
printf("Writing %d pages |", uiBlocks);
printf("ss");
uiSkippedPages = 2;
} else {
if (!check_magic()) {
printf("\nUnable to unlock card - are you sure the card is magic?\n");
return false;
}
printf("Writing %d pages |", uiBlocks);
}
for (uint32_t page = uiSkippedPages; page < uiBlocks; page++) {
if ((!write_lock) && page == 0x2) {
printf("s");
uiSkippedPages++;
continue;
}
// OTP/Capability blocks
if ((page == 0x3) && (!write_otp)) {
printf("s");
uiSkippedPages++;
continue;
}
// NTAG and MF0UL21 have Dynamic Lock Bytes
if (((iEV1Type == EV1_UL21 && page == 0x24) || \
(iNTAGType == NTAG_213 && page == 0x28) || \
(iNTAGType == NTAG_215 && page == 0x82) || \
(iNTAGType == NTAG_216 && page == 0xe2)) && (!write_dyn_lock)) {
printf("s");
uiSkippedPages++;
continue;
}
// Check if the previous readout went well
if (bFailure) {
// When a failure occured we need to redo the anti-collision
if (nfc_initiator_select_passive_target(pnd, nmMifare, NULL, 0, &nt) <= 0) {
ERR("tag was removed");
return false;
}
bFailure = false;
}
// For the Mifare Ultralight, this write command can be used
// in compatibility mode, which only actually writes the first
// page (4 bytes). The Ultralight-specific Write command only
// writes one page at a time.
uiBlock = page / 4;
memcpy(mp.mpd.abtData, mtDump.ul[uiBlock].mbd.abtData + ((page % 4) * 4), 4);
memset(mp.mpd.abtData + 4, 0, 12);
if (!nfc_initiator_mifare_cmd(pnd, MC_WRITE, page, &mp))
bFailure = true;
print_success_or_failure(bFailure, &uiWrittenPages, &uiFailedPages);
}
printf("|\n");
printf("Done, %d of %d pages written (%d pages skipped, %d pages failed).\n", uiWrittenPages, uiBlocks, uiSkippedPages, uiFailedPages);
return true;
}
static int list_passive_targets(nfc_device *_pnd)
{
int res = 0;
nfc_target ant[MAX_TARGET_COUNT];
if (nfc_initiator_init(_pnd) < 0) {
return -EXIT_FAILURE;
}
if ((res = nfc_initiator_list_passive_targets(_pnd, nmMifare, ant, MAX_TARGET_COUNT)) >= 0) {
int i;
if (res > 0)
printf("%d ISO14443A passive target(s) found:\n", res);
for (i = 0; i < res; i++) {
size_t szPos;
printf("\t");
for (szPos = 0; szPos < ant[i].nti.nai.szUidLen; szPos++) {
printf("%02x", ant[i].nti.nai.abtUid[szPos]);
}
printf("\n");
}
}
return 0;
}
static size_t str_to_uid(const char *str, uint8_t *uid)
{
uint8_t i;
memset(uid, 0x0, MAX_UID_LEN);
i = 0;
while ((*str != '\0') && ((i >> 1) < MAX_UID_LEN)) {
char nibble[2] = { 0x00, '\n' }; /* for strtol */
nibble[0] = *str++;
if (isxdigit(nibble[0])) {
if (isupper(nibble[0]))
nibble[0] = tolower(nibble[0]);
uid[i >> 1] |= strtol(nibble, NULL, 16) << ((i % 2) ? 0 : 4) & ((i % 2) ? 0x0f : 0xf0);
i++;
}
}
return i >> 1;
}
static void
print_usage(const char *argv[])
{
printf("Usage: %s r|w <dump.mfd> [OPTIONS]\n", argv[0]);
printf("Arguments:\n");
printf("\tr|w - Perform read or write\n");
printf("\t<dump.mfd> - MiFare Dump (MFD) used to write (card to MFD) or (MFD to card)\n");
printf("Options:\n");
printf("\t--otp - Don't prompt for OTP Bytes writing (Assume yes)\n");
printf("\t--lock - Don't prompt for Lock Bytes (OTP) writing (Assume yes)\n");
printf("\t--dynlock - Don't prompt for Dynamic Lock Bytes writing (Assume yes)\n");
printf("\t--uid - Don't prompt for UID writing (Assume yes)\n");
printf("\t--full - Assume full card write (UID + OTP + Lockbytes + Dynamic Lockbytes)\n");
printf("\t--with-uid <UID> - Specify UID to read/write from\n");
printf("\t--pw <PWD> - Specify 8 HEX digit PASSWORD for EV1\n");
printf("\t--partial - Allow source data size to be other than tag capacity\n");
}
int
main(int argc, const char *argv[])
{
int iAction = 0;
size_t iDumpSize = sizeof(mifareul_tag);
uint8_t iUID[MAX_UID_LEN] = { 0x0 };
size_t szUID = 0;
bool bOTP = false;
bool bLock = false;
bool bDynLock = false;
bool bUID = false;
bool bPWD = false;
bool bPart = false;
bool bFilename = false;
FILE *pfDump;
if (argc == 0) {
print_usage(argv);
exit(EXIT_FAILURE);
}
DBG("\nChecking arguments and settings\n");
// Get commandline options
for (int arg = 1; arg < argc; arg++) {
if (0 == strcmp(argv[arg], "r")) {
iAction = 1;
} else if (0 == strcmp(argv[arg], "w")) {
iAction = 2;
} else if (0 == strcmp(argv[arg], "--with-uid")) {
if (arg + 1 == argc) {
ERR("Please supply a UID of 4, 7 or 10 bytes long. Ex: a1:b2:c3:d4");
exit(EXIT_FAILURE);
}
szUID = str_to_uid(argv[++arg], iUID);
} else if (0 == strcmp(argv[arg], "--full")) {
bOTP = true;
bLock = true;
bDynLock = true;
bUID = true;
} else if (0 == strcmp(argv[arg], "--otp")) {
bOTP = true;
} else if (0 == strcmp(argv[arg], "--lock")) {
bLock = true;
} else if (0 == strcmp(argv[arg], "--dynlock")) {
bDynLock = true;
} else if (0 == strcmp(argv[arg], "--uid")) {
bUID = true;
} else if (0 == strcmp(argv[arg], "--check-magic")) {
iAction = 3;
} else if (0 == strcmp(argv[arg], "--partial")) {
bPart = true;
} else if (0 == strcmp(argv[arg], "--pw")) {
bPWD = true;
if (arg + 1 == argc || strlen(argv[++arg]) != 8 || ! ev1_load_pwd(iPWD, argv[arg])) {
ERR("Please supply a PASSWORD of 8 HEX digits");
exit(EXIT_FAILURE);
}
} else {
//Skip validation of the filename
if (arg != 2) {
ERR("%s is not a supported option.", argv[arg]);
print_usage(argv);
exit(EXIT_FAILURE);
} else {
bFilename = true;
}
}
}
if (iAction != 3 && !bFilename) {
ERR("Please supply a Mifare Dump filename");
exit(EXIT_FAILURE);
}
nfc_context *context;
nfc_init(&context);
if (context == NULL) {
ERR("Unable to init libnfc (malloc)");
exit(EXIT_FAILURE);
}
// Try to open the NFC device
pnd = nfc_open(context, NULL);
if (pnd == NULL) {
ERR("Error opening NFC device");
nfc_exit(context);
exit(EXIT_FAILURE);
}
printf("NFC device: %s opened\n", nfc_device_get_name(pnd));
if (list_passive_targets(pnd)) {
nfc_perror(pnd, "nfc_device_set_property_bool");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
if (nfc_initiator_init(pnd) < 0) {
nfc_perror(pnd, "nfc_initiator_init");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Let the device only try once to find a tag
if (nfc_device_set_property_bool(pnd, NP_INFINITE_SELECT, false) < 0) {
nfc_perror(pnd, "nfc_device_set_property_bool");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Try to find a MIFARE Ultralight tag
if (nfc_initiator_select_passive_target(pnd, nmMifare, (szUID) ? iUID : NULL, szUID, &nt) <= 0) {
ERR("no tag was found\n");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Test if we are dealing with a MIFARE compatible tag
if (nt.nti.nai.abtAtqa[1] != 0x44) {
ERR("tag is not a MIFARE Ultralight card\n");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
// Get the info from the current tag
printf("Using MIFARE Ultralight card with UID: ");
size_t szPos;
for (szPos = 0; szPos < nt.nti.nai.szUidLen; szPos++) {
printf("%02x", nt.nti.nai.abtUid[szPos]);
}
printf("\n");
// test if tag is EV1 or NTAG
if (get_ev1_version()) {
if (!bPWD)
printf("WARNING: Tag is EV1 or NTAG - PASSWORD may be required\n");
if (abtRx[6] == 0x0b || abtRx[6] == 0x00) {
printf("EV1 type: MF0UL11 (48 bytes)\n");
uiBlocks = 20; // total number of 4 byte 'pages'
iDumpSize = uiBlocks * 4;
iEV1Type = EV1_UL11;
} else if (abtRx[6] == 0x0e) {
printf("EV1 type: MF0UL21 (128 user bytes)\n");
uiBlocks = 41;
iDumpSize = uiBlocks * 4;
iEV1Type = EV1_UL21;
} else if (abtRx[6] == 0x0f) {
printf("NTAG Type: NTAG213 (144 user bytes)\n");
uiBlocks = 45;
iDumpSize = uiBlocks * 4;
iNTAGType = NTAG_213;
} else if (abtRx[6] == 0x11) {
printf("NTAG Type: NTAG215 (504 user bytes)\n");
uiBlocks = 135;
iDumpSize = uiBlocks * 4;
iNTAGType = NTAG_215;
} else if (abtRx[6] == 0x13) {
printf("NTAG Type: NTAG216 (888 user bytes)\n");
uiBlocks = 231;
iDumpSize = uiBlocks * 4;
iNTAGType = NTAG_216;
} else {
printf("unknown! (0x%02x)\n", abtRx[6]);
exit(EXIT_FAILURE);
}
} else {
// re-init non EV1 tag
if (nfc_initiator_select_passive_target(pnd, nmMifare, (szUID) ? iUID : NULL, szUID, &nt) <= 0) {
ERR("no tag was found\n");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
}
// EV1 login required
if (bPWD) {
printf("Authing with PWD: %02x%02x%02x%02x ", iPWD[0], iPWD[1], iPWD[2], iPWD[3]);
if (!ev1_pwd_auth(iPWD)) {
printf("\n");
ERR("AUTH failed!\n");
exit(EXIT_FAILURE);
} else {
printf("Success - PACK: %02x%02x\n", abtRx[0], abtRx[1]);
memcpy(iPACK, abtRx, 2);
}
}
if (iAction == 1) {
memset(&mtDump, 0x00, sizeof(mtDump));
} else if (iAction == 2) {
pfDump = fopen(argv[2], "rb");
if (pfDump == NULL) {
ERR("Could not open dump file: %s\n", argv[2]);
exit(EXIT_FAILURE);
}
size_t szDump;
if (((szDump = fread(&mtDump, 1, sizeof(mtDump), pfDump)) != iDumpSize && !bPart) || szDump <= 0) {
ERR("Could not read from dump file or size mismatch: %s (read %lu, expected %lu)\n", argv[2], (unsigned long)szDump, (unsigned long)iDumpSize);
fclose(pfDump);
exit(EXIT_FAILURE);
}
if (szDump != iDumpSize)
printf("Performing partial write\n");
fclose(pfDump);
DBG("Successfully opened the dump file\n");
} else if (iAction == 3) {
DBG("Switching to Check Magic Mode\n");
} else {
ERR("Unable to determine operating mode");
exit(EXIT_FAILURE);
}
if (iAction == 1) {
bool bRF = read_card();
printf("Writing data to file: %s ... ", argv[2]);
fflush(stdout);
pfDump = fopen(argv[2], "wb");
if (pfDump == NULL) {
printf("Could not open file: %s\n", argv[2]);
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
if (fwrite(&mtDump, 1, uiReadPages * 4, pfDump) != uiReadPages * 4) {
printf("Could not write to file: %s\n", argv[2]);
fclose(pfDump);
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
}
fclose(pfDump);
printf("Done.\n");
if (!bRF)
printf("Warning! Read failed - partial data written to file!\n");
} else if (iAction == 2) {
write_card(bOTP, bLock, bDynLock, bUID);
} else if (iAction == 3) {
if (!check_magic()) {
printf("Card is not magic\n");
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_FAILURE);
} else {
printf("Card is magic\n");
}
}
nfc_close(pnd);
nfc_exit(context);
exit(EXIT_SUCCESS);
}