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1 //-----------------------------------------------------------------------------
2 // 2011, Merlok
3 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // High frequency ISO14443A commands
10 //-----------------------------------------------------------------------------
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <unistd.h>
16 #include "util.h"
17 #include "../common/iso14443crc.h"
18 #include "data.h"
19 #include "proxmark3.h"
20 #include "ui.h"
21 #include "cmdparser.h"
22 #include "cmdhf14a.h"
23 #include "../include/common.h"
24 #include "cmdmain.h"
25 #include "../include/mifare.h"
26
27 static int CmdHelp(const char *Cmd);
28 static void waitCmd(uint8_t iLen);
29
30 int CmdHF14AList(const char *Cmd)
31 {
32 bool ShowWaitCycles = false;
33 char param = param_getchar(Cmd, 0);
34
35 if (param == 'h' || (param != 0 && param != 'f')) {
36 PrintAndLog("List data in trace buffer.");
37 PrintAndLog("Usage: hf 14a list [f]");
38 PrintAndLog("f - show frame delay times as well");
39 PrintAndLog("sample: hf 14a list f");
40 return 0;
41 }
42
43 ShowWaitCycles = (param == 'f');
44
45 // for the time being. Need better Bigbuf handling.
46 #define TRACE_SIZE 3000
47
48 uint8_t trace[TRACE_SIZE];
49 GetFromBigBuf(trace, TRACE_SIZE, 0);
50 WaitForResponse(CMD_ACK,NULL);
51
52 PrintAndLog("Recorded Activity");
53 PrintAndLog("");
54 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
55 PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
56 PrintAndLog("");
57 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC ");
58 PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------");
59
60 uint16_t tracepos = 0;
61 uint16_t duration;
62 uint16_t data_len;
63 uint16_t parity_len;
64 bool isResponse;
65 uint32_t timestamp;
66 uint32_t first_timestamp;
67 uint32_t EndOfTransmissionTimestamp;
68
69 for (;;) {
70
71 if(tracepos >= TRACE_SIZE) break;
72
73 timestamp = *((uint32_t *)(trace + tracepos));
74
75 // Break and stick with current result if buffer was not completely full
76 if (timestamp == 0x44444444) break;
77
78 if(tracepos == 0) {
79 first_timestamp = timestamp;
80 }
81
82 tracepos += 4;
83 duration = *((uint16_t *)(trace + tracepos));
84 tracepos += 2;
85 data_len = *((uint16_t *)(trace + tracepos));
86 tracepos += 2;
87
88 isResponse = false;
89 if (data_len & 0x8000) {
90 data_len &= 0x7fff;
91 isResponse = true;
92 }
93
94 parity_len = (data_len-1)/8 + 1;
95
96 if (tracepos + data_len + parity_len >= TRACE_SIZE) break;
97
98 uint8_t *frame = trace + tracepos;
99 tracepos += data_len;
100 uint8_t *parityBytes = trace + tracepos;
101 tracepos += parity_len;
102
103 char line[16][110];
104 for (int j = 0; j < data_len; j++) {
105 int oddparity = 0x01;
106 int k;
107
108 for (k=0;k<8;k++) {
109 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
110 }
111
112 uint8_t parityBits = parityBytes[j>>3];
113 if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
114 sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
115 } else {
116 sprintf(line[j/16]+((j%16)*4), "%02x ", frame[j]);
117 }
118 }
119
120 char crc[5] = {0x00};
121 if (data_len > 2) {
122 uint8_t b1, b2;
123 ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
124 if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
125 sprintf(crc, (isResponse & (data_len < 6)) ? "" : "!crc");
126 }
127 }
128
129 EndOfTransmissionTimestamp = timestamp + duration;
130 int num_lines = (data_len - 1)/16 + 1;
131
132 for (int j = 0; j < num_lines; j++) {
133 if (j == 0) {
134 PrintAndLog(" %9d | %9d | %s | %-64s| %s",
135 (timestamp - first_timestamp),
136 (EndOfTransmissionTimestamp - first_timestamp),
137 (isResponse ? "Tag" : "Rdr"),
138 line[j],
139 (j == num_lines-1)?crc:""
140 );
141 } else {
142 PrintAndLog(" | | | %-64s| %s",
143 line[j],
144 (j == num_lines-1)?crc:"");
145 }
146 }
147
148 bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
149
150 if (ShowWaitCycles && !isResponse && next_isResponse) {
151 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
152 if (next_timestamp != 0x44444444) {
153 PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
154 (EndOfTransmissionTimestamp - first_timestamp),
155 (next_timestamp - first_timestamp),
156 " ",
157 (next_timestamp - EndOfTransmissionTimestamp));
158 }
159 }
160 }
161 return 0;
162 }
163
164 void iso14a_set_timeout(uint32_t timeout) {
165 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
166 SendCommand(&c);
167 }
168
169 int CmdHF14AReader(const char *Cmd)
170 {
171 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
172 SendCommand(&c);
173
174 UsbCommand resp;
175 WaitForResponse(CMD_ACK,&resp);
176
177 iso14a_card_select_t card;
178 memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
179
180 uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
181
182 if(select_status == 0) {
183 PrintAndLog("iso14443a card select failed");
184 // disconnect
185 c.arg[0] = 0;
186 c.arg[1] = 0;
187 c.arg[2] = 0;
188 SendCommand(&c);
189 return 0;
190 }
191
192 PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
193 PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
194 PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
195
196 switch (card.sak) {
197 case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
198 case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
199 case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
200 case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
201 case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
202 case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
203 case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
204 case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
205 case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
206 case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
207 case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
208 case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
209 case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
210 case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
211 default: ;
212 }
213
214
215 // try to request ATS even if tag claims not to support it
216 if (select_status == 2) {
217 uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
218 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
219 c.arg[1] = 2;
220 c.arg[2] = 0;
221 memcpy(c.d.asBytes, rats, 2);
222 SendCommand(&c);
223 WaitForResponse(CMD_ACK,&resp);
224
225 memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
226 card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes
227 }
228
229 // disconnect
230 c.arg[0] = 0;
231 c.arg[1] = 0;
232 c.arg[2] = 0;
233 SendCommand(&c);
234
235
236 if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
237 bool ta1 = 0, tb1 = 0, tc1 = 0;
238 int pos;
239
240 if (select_status == 2) {
241 PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
242 }
243 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
244 PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
245 if (card.ats[0] != card.ats_len - 2) {
246 PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
247 }
248
249 if (card.ats[0] > 1) { // there is a format byte (T0)
250 ta1 = (card.ats[1] & 0x10) == 0x10;
251 tb1 = (card.ats[1] & 0x20) == 0x20;
252 tc1 = (card.ats[1] & 0x40) == 0x40;
253 int16_t fsci = card.ats[1] & 0x0f;
254 PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
255 "TC1 is%s present, FSCI is %d (FSC = %ld)",
256 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
257 fsci,
258 fsci < 5 ? (fsci - 2) * 8 :
259 fsci < 8 ? (fsci - 3) * 32 :
260 fsci == 8 ? 256 :
261 -1
262 );
263 }
264 pos = 2;
265 if (ta1) {
266 char dr[16], ds[16];
267 dr[0] = ds[0] = '\0';
268 if (card.ats[pos] & 0x10) strcat(ds, "2, ");
269 if (card.ats[pos] & 0x20) strcat(ds, "4, ");
270 if (card.ats[pos] & 0x40) strcat(ds, "8, ");
271 if (card.ats[pos] & 0x01) strcat(dr, "2, ");
272 if (card.ats[pos] & 0x02) strcat(dr, "4, ");
273 if (card.ats[pos] & 0x04) strcat(dr, "8, ");
274 if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
275 if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
276 PrintAndLog(" - TA1 : different divisors are%s supported, "
277 "DR: [%s], DS: [%s]",
278 (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
279 pos++;
280 }
281 if (tb1) {
282 uint32_t sfgi = card.ats[pos] & 0x0F;
283 uint32_t fwi = card.ats[pos] >> 4;
284 PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
285 (sfgi),
286 sfgi ? "" : "(not needed) ",
287 sfgi ? (1 << 12) << sfgi : 0,
288 fwi,
289 (1 << 12) << fwi
290 );
291 pos++;
292 }
293 if (tc1) {
294 PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
295 (card.ats[pos] & 0x01) ? "" : " NOT",
296 (card.ats[pos] & 0x02) ? "" : " NOT");
297 pos++;
298 }
299 if (card.ats[0] > pos) {
300 char *tip = "";
301 if (card.ats[0] - pos >= 7) {
302 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
303 tip = "-> MIFARE Plus X 2K or 4K";
304 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
305 tip = "-> MIFARE Plus S 2K or 4K";
306 }
307 }
308 PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
309 if (card.ats[pos] == 0xC1) {
310 PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
311 PrintAndLog(" %02x -> Length is %d bytes",
312 card.ats[pos + 1], card.ats[pos + 1]);
313 switch (card.ats[pos + 2] & 0xf0) {
314 case 0x10:
315 PrintAndLog(" 1x -> MIFARE DESFire");
316 break;
317 case 0x20:
318 PrintAndLog(" 2x -> MIFARE Plus");
319 break;
320 }
321 switch (card.ats[pos + 2] & 0x0f) {
322 case 0x00:
323 PrintAndLog(" x0 -> <1 kByte");
324 break;
325 case 0x01:
326 PrintAndLog(" x0 -> 1 kByte");
327 break;
328 case 0x02:
329 PrintAndLog(" x0 -> 2 kByte");
330 break;
331 case 0x03:
332 PrintAndLog(" x0 -> 4 kByte");
333 break;
334 case 0x04:
335 PrintAndLog(" x0 -> 8 kByte");
336 break;
337 }
338 switch (card.ats[pos + 3] & 0xf0) {
339 case 0x00:
340 PrintAndLog(" 0x -> Engineering sample");
341 break;
342 case 0x20:
343 PrintAndLog(" 2x -> Released");
344 break;
345 }
346 switch (card.ats[pos + 3] & 0x0f) {
347 case 0x00:
348 PrintAndLog(" x0 -> Generation 1");
349 break;
350 case 0x01:
351 PrintAndLog(" x1 -> Generation 2");
352 break;
353 case 0x02:
354 PrintAndLog(" x2 -> Generation 3");
355 break;
356 }
357 switch (card.ats[pos + 4] & 0x0f) {
358 case 0x00:
359 PrintAndLog(" x0 -> Only VCSL supported");
360 break;
361 case 0x01:
362 PrintAndLog(" x1 -> VCS, VCSL, and SVC supported");
363 break;
364 case 0x0E:
365 PrintAndLog(" xE -> no VCS command supported");
366 break;
367 }
368 }
369 }
370 } else {
371 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
372 }
373
374 return select_status;
375 }
376
377 // Collect ISO14443 Type A UIDs
378 int CmdHF14ACUIDs(const char *Cmd)
379 {
380 // requested number of UIDs
381 int n = atoi(Cmd);
382 // collect at least 1 (e.g. if no parameter was given)
383 n = n > 0 ? n : 1;
384
385 PrintAndLog("Collecting %d UIDs", n);
386 PrintAndLog("Start: %u", time(NULL));
387 // repeat n times
388 for (int i = 0; i < n; i++) {
389 // execute anticollision procedure
390 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
391 SendCommand(&c);
392
393 UsbCommand resp;
394 WaitForResponse(CMD_ACK,&resp);
395
396 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
397
398 // check if command failed
399 if (resp.arg[0] == 0) {
400 PrintAndLog("Card select failed.");
401 } else {
402 char uid_string[20];
403 for (uint16_t i = 0; i < card->uidlen; i++) {
404 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
405 }
406 PrintAndLog("%s", uid_string);
407 }
408 }
409 PrintAndLog("End: %u", time(NULL));
410
411 return 1;
412 }
413
414 // ## simulate iso14443a tag
415 // ## greg - added ability to specify tag UID
416 int CmdHF14ASim(const char *Cmd)
417 {
418 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
419
420 // Retrieve the tag type
421 uint8_t tagtype = param_get8ex(Cmd,0,0,10);
422
423 // When no argument was given, just print help message
424 if (tagtype == 0) {
425 PrintAndLog("");
426 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
427 PrintAndLog("");
428 PrintAndLog(" syntax: hf 14a sim <type> <uid>");
429 PrintAndLog(" types: 1 = MIFARE Classic");
430 PrintAndLog(" 2 = MIFARE Ultralight");
431 PrintAndLog(" 3 = MIFARE DESFIRE");
432 PrintAndLog(" 4 = ISO/IEC 14443-4");
433 PrintAndLog(" 5 = MIFARE TNP3XXX");
434 PrintAndLog("");
435 return 1;
436 }
437
438 // Store the tag type
439 c.arg[0] = tagtype;
440
441 // Retrieve the full 4 or 7 byte long uid
442 uint64_t long_uid = param_get64ex(Cmd,1,0,16);
443
444 // Are we handling the (optional) second part uid?
445 if (long_uid > 0xffffffff) {
446 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
447 // Store the second part
448 c.arg[2] = (long_uid & 0xffffffff);
449 long_uid >>= 32;
450 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
451 c.arg[1] = (long_uid & 0xffffff);
452 } else {
453 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
454 // Only store the first part
455 c.arg[1] = long_uid & 0xffffffff;
456 }
457 /*
458 // At lease save the mandatory first part of the UID
459 c.arg[0] = long_uid & 0xffffffff;
460
461 if (c.arg[1] == 0) {
462 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
463 }
464
465 switch (c.arg[0]) {
466 case 1: {
467 PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
468 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
469 } break;
470 case 2: {
471 PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
472 } break;
473 default: {
474 PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
475 PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
476 PrintAndLog(" type1: 4 ",c.arg[0]);
477
478 return 1;
479 } break;
480 }
481 */
482 /*
483 unsigned int hi = 0, lo = 0;
484 int n = 0, i = 0;
485 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
486 hi= (hi << 4) | (lo >> 28);
487 lo= (lo << 4) | (n & 0xf);
488 }
489 */
490 // UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
491 // PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
492 SendCommand(&c);
493 return 0;
494 }
495
496 int CmdHF14ASnoop(const char *Cmd) {
497 int param = 0;
498
499 if (param_getchar(Cmd, 0) == 'h') {
500 PrintAndLog("It get data from the field and saves it into command buffer.");
501 PrintAndLog("Buffer accessible from command hf 14a list.");
502 PrintAndLog("Usage: hf 14a snoop [c][r]");
503 PrintAndLog("c - triggered by first data from card");
504 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
505 PrintAndLog("sample: hf 14a snoop c r");
506 return 0;
507 }
508
509 for (int i = 0; i < 2; i++) {
510 char ctmp = param_getchar(Cmd, i);
511 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
512 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
513 }
514
515 UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
516 SendCommand(&c);
517 return 0;
518 }
519
520 int CmdHF14ACmdRaw(const char *cmd) {
521 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
522 uint8_t reply=1;
523 uint8_t crc=0;
524 uint8_t power=0;
525 uint8_t active=0;
526 uint8_t active_select=0;
527 uint16_t numbits=0;
528 uint16_t timeout=0;
529 uint8_t bTimeout=0;
530 char buf[5]="";
531 int i=0;
532 uint8_t data[USB_CMD_DATA_SIZE];
533 unsigned int datalen=0, temp;
534
535 if (strlen(cmd)<2) {
536 PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
537 PrintAndLog(" -r do not read response");
538 PrintAndLog(" -c calculate and append CRC");
539 PrintAndLog(" -p leave the signal field ON after receive");
540 PrintAndLog(" -a active signal field ON without select");
541 PrintAndLog(" -s active signal field ON with select");
542 PrintAndLog(" -b number of bits to send. Useful for send partial byte");
543 PrintAndLog(" -t timeout");
544 return 0;
545 }
546
547 // strip
548 while (*cmd==' ' || *cmd=='\t') cmd++;
549
550 while (cmd[i]!='\0') {
551 if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
552 if (cmd[i]=='-') {
553 switch (cmd[i+1]) {
554 case 'r':
555 reply=0;
556 break;
557 case 'c':
558 crc=1;
559 break;
560 case 'p':
561 power=1;
562 break;
563 case 'a':
564 active=1;
565 break;
566 case 's':
567 active_select=1;
568 break;
569 case 'b':
570 sscanf(cmd+i+2,"%d",&temp);
571 numbits = temp & 0xFFFF;
572 i+=3;
573 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
574 i-=2;
575 break;
576 case 't':
577 bTimeout=1;
578 sscanf(cmd+i+2,"%d",&temp);
579 timeout = temp & 0xFFFF;
580 i+=3;
581 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
582 i+=2;
583 break;
584 default:
585 PrintAndLog("Invalid option");
586 return 0;
587 }
588 i+=2;
589 continue;
590 }
591 if ((cmd[i]>='0' && cmd[i]<='9') ||
592 (cmd[i]>='a' && cmd[i]<='f') ||
593 (cmd[i]>='A' && cmd[i]<='F') ) {
594 buf[strlen(buf)+1]=0;
595 buf[strlen(buf)]=cmd[i];
596 i++;
597
598 if (strlen(buf)>=2) {
599 sscanf(buf,"%x",&temp);
600 data[datalen]=(uint8_t)(temp & 0xff);
601 *buf=0;
602 if (++datalen>sizeof(data)){
603 if (crc)
604 PrintAndLog("Buffer is full, we can't add CRC to your data");
605 break;
606 }
607 }
608 continue;
609 }
610 PrintAndLog("Invalid char on input");
611 return 0;
612 }
613 if(crc && datalen>0 && datalen<sizeof(data)-2)
614 {
615 uint8_t first, second;
616 ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
617 data[datalen++] = first;
618 data[datalen++] = second;
619 }
620
621 if(active || active_select)
622 {
623 c.arg[0] |= ISO14A_CONNECT;
624 if(active)
625 c.arg[0] |= ISO14A_NO_SELECT;
626 }
627 if(bTimeout){
628 #define MAX_TIMEOUT 624*105 // max timeout is 624 ms
629 c.arg[0] |= ISO14A_SET_TIMEOUT;
630 c.arg[2] = timeout * 105; // each bit is about 9.4 us
631 if(c.arg[2]>MAX_TIMEOUT) {
632 c.arg[2] = MAX_TIMEOUT;
633 PrintAndLog("Set timeout to 624 ms. The max we can wait for response");
634 }
635 }
636 if(power)
637 c.arg[0] |= ISO14A_NO_DISCONNECT;
638 if(datalen>0)
639 c.arg[0] |= ISO14A_RAW;
640
641 // Max buffer is USB_CMD_DATA_SIZE
642 c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
643 memcpy(c.d.asBytes,data,datalen);
644
645 SendCommand(&c);
646
647 if (reply) {
648 if(active_select)
649 waitCmd(1);
650 if(datalen>0)
651 waitCmd(0);
652 } // if reply
653 return 0;
654 }
655
656 static void waitCmd(uint8_t iSelect)
657 {
658 uint8_t *recv;
659 UsbCommand resp;
660 char *hexout;
661
662 if (WaitForResponseTimeout(CMD_ACK,&resp,10000)) {
663 recv = resp.d.asBytes;
664 uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
665 PrintAndLog("received %i octets",iLen);
666 if(!iLen)
667 return;
668 hexout = (char *)malloc(iLen * 3 + 1);
669 if (hexout != NULL) {
670 for (int i = 0; i < iLen; i++) { // data in hex
671 sprintf(&hexout[i * 3], "%02X ", recv[i]);
672 }
673 PrintAndLog("%s", hexout);
674 free(hexout);
675 } else {
676 PrintAndLog("malloc failed your client has low memory?");
677 }
678 } else {
679 PrintAndLog("timeout while waiting for reply.");
680 }
681 }
682
683 static command_t CommandTable[] =
684 {
685 {"help", CmdHelp, 1, "This help"},
686 {"list", CmdHF14AList, 0, "List ISO 14443a history"},
687 {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
688 {"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
689 {"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"},
690 {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
691 {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
692 {NULL, NULL, 0, NULL}
693 };
694
695 int CmdHF14A(const char *Cmd) {
696 // flush
697 WaitForResponseTimeout(CMD_ACK,NULL,100);
698
699 // parse
700 CmdsParse(CommandTable, Cmd);
701 return 0;
702 }
703
704 int CmdHelp(const char *Cmd)
705 {
706 CmdsHelp(CommandTable);
707 return 0;
708 }
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