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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 if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
236 bool ta1 = 0, tb1 = 0, tc1 = 0;
237 int pos;
238
239 if (select_status == 2) {
240 PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
241 }
242 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
243 PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
244 if (card.ats[0] != card.ats_len - 2) {
245 PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
246 }
247
248 if (card.ats[0] > 1) { // there is a format byte (T0)
249 ta1 = (card.ats[1] & 0x10) == 0x10;
250 tb1 = (card.ats[1] & 0x20) == 0x20;
251 tc1 = (card.ats[1] & 0x40) == 0x40;
252 int16_t fsci = card.ats[1] & 0x0f;
253 PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
254 "TC1 is%s present, FSCI is %d (FSC = %ld)",
255 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
256 fsci,
257 fsci < 5 ? (fsci - 2) * 8 :
258 fsci < 8 ? (fsci - 3) * 32 :
259 fsci == 8 ? 256 :
260 -1
261 );
262 }
263 pos = 2;
264 if (ta1) {
265 char dr[16], ds[16];
266 dr[0] = ds[0] = '\0';
267 if (card.ats[pos] & 0x10) strcat(ds, "2, ");
268 if (card.ats[pos] & 0x20) strcat(ds, "4, ");
269 if (card.ats[pos] & 0x40) strcat(ds, "8, ");
270 if (card.ats[pos] & 0x01) strcat(dr, "2, ");
271 if (card.ats[pos] & 0x02) strcat(dr, "4, ");
272 if (card.ats[pos] & 0x04) strcat(dr, "8, ");
273 if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
274 if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
275 PrintAndLog(" - TA1 : different divisors are%s supported, "
276 "DR: [%s], DS: [%s]",
277 (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
278 pos++;
279 }
280 if (tb1) {
281 uint32_t sfgi = card.ats[pos] & 0x0F;
282 uint32_t fwi = card.ats[pos] >> 4;
283 PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
284 (sfgi),
285 sfgi ? "" : "(not needed) ",
286 sfgi ? (1 << 12) << sfgi : 0,
287 fwi,
288 (1 << 12) << fwi
289 );
290 pos++;
291 }
292 if (tc1) {
293 PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
294 (card.ats[pos] & 0x01) ? "" : " NOT",
295 (card.ats[pos] & 0x02) ? "" : " NOT");
296 pos++;
297 }
298 if (card.ats[0] > pos) {
299 char *tip = "";
300 if (card.ats[0] - pos >= 7) {
301 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
302 tip = "-> MIFARE Plus X 2K or 4K";
303 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
304 tip = "-> MIFARE Plus S 2K or 4K";
305 }
306 }
307 PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
308 if (card.ats[pos] == 0xC1) {
309 PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
310 PrintAndLog(" %02x -> Length is %d bytes",
311 card.ats[pos + 1], card.ats[pos + 1]);
312 switch (card.ats[pos + 2] & 0xf0) {
313 case 0x10:
314 PrintAndLog(" 1x -> MIFARE DESFire");
315 break;
316 case 0x20:
317 PrintAndLog(" 2x -> MIFARE Plus");
318 break;
319 }
320 switch (card.ats[pos + 2] & 0x0f) {
321 case 0x00:
322 PrintAndLog(" x0 -> <1 kByte");
323 break;
324 case 0x01:
325 PrintAndLog(" x0 -> 1 kByte");
326 break;
327 case 0x02:
328 PrintAndLog(" x0 -> 2 kByte");
329 break;
330 case 0x03:
331 PrintAndLog(" x0 -> 4 kByte");
332 break;
333 case 0x04:
334 PrintAndLog(" x0 -> 8 kByte");
335 break;
336 }
337 switch (card.ats[pos + 3] & 0xf0) {
338 case 0x00:
339 PrintAndLog(" 0x -> Engineering sample");
340 break;
341 case 0x20:
342 PrintAndLog(" 2x -> Released");
343 break;
344 }
345 switch (card.ats[pos + 3] & 0x0f) {
346 case 0x00:
347 PrintAndLog(" x0 -> Generation 1");
348 break;
349 case 0x01:
350 PrintAndLog(" x1 -> Generation 2");
351 break;
352 case 0x02:
353 PrintAndLog(" x2 -> Generation 3");
354 break;
355 }
356 switch (card.ats[pos + 4] & 0x0f) {
357 case 0x00:
358 PrintAndLog(" x0 -> Only VCSL supported");
359 break;
360 case 0x01:
361 PrintAndLog(" x1 -> VCS, VCSL, and SVC supported");
362 break;
363 case 0x0E:
364 PrintAndLog(" xE -> no VCS command supported");
365 break;
366 }
367 }
368 }
369 } else {
370 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
371 }
372
373 return select_status;
374 }
375
376 // Collect ISO14443 Type A UIDs
377 int CmdHF14ACUIDs(const char *Cmd)
378 {
379 // requested number of UIDs
380 int n = atoi(Cmd);
381 // collect at least 1 (e.g. if no parameter was given)
382 n = n > 0 ? n : 1;
383
384 PrintAndLog("Collecting %d UIDs", n);
385 PrintAndLog("Start: %u", time(NULL));
386 // repeat n times
387 for (int i = 0; i < n; i++) {
388 // execute anticollision procedure
389 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
390 SendCommand(&c);
391
392 UsbCommand resp;
393 WaitForResponse(CMD_ACK,&resp);
394
395 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
396
397 // check if command failed
398 if (resp.arg[0] == 0) {
399 PrintAndLog("Card select failed.");
400 } else {
401 char uid_string[20];
402 for (uint16_t i = 0; i < card->uidlen; i++) {
403 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
404 }
405 PrintAndLog("%s", uid_string);
406 }
407 }
408 PrintAndLog("End: %u", time(NULL));
409
410 return 1;
411 }
412
413 // ## simulate iso14443a tag
414 // ## greg - added ability to specify tag UID
415 int CmdHF14ASim(const char *Cmd)
416 {
417 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
418
419 // Retrieve the tag type
420 uint8_t tagtype = param_get8ex(Cmd,0,0,10);
421
422 // When no argument was given, just print help message
423 if (tagtype == 0) {
424 PrintAndLog("");
425 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
426 PrintAndLog("");
427 PrintAndLog(" syntax: hf 14a sim <type> <uid>");
428 PrintAndLog(" types: 1 = MIFARE Classic");
429 PrintAndLog(" 2 = MIFARE Ultralight");
430 PrintAndLog(" 3 = MIFARE DESFIRE");
431 PrintAndLog(" 4 = ISO/IEC 14443-4");
432 PrintAndLog(" 5 = MIFARE TNP3XXX");
433 PrintAndLog("");
434 return 1;
435 }
436
437 // Store the tag type
438 c.arg[0] = tagtype;
439
440 // Retrieve the full 4 or 7 byte long uid
441 uint64_t long_uid = param_get64ex(Cmd,1,0,16);
442
443 // Are we handling the (optional) second part uid?
444 if (long_uid > 0xffffffff) {
445 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
446 // Store the second part
447 c.arg[2] = (long_uid & 0xffffffff);
448 long_uid >>= 32;
449 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
450 c.arg[1] = (long_uid & 0xffffff);
451 } else {
452 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
453 // Only store the first part
454 c.arg[1] = long_uid & 0xffffffff;
455 }
456 /*
457 // At lease save the mandatory first part of the UID
458 c.arg[0] = long_uid & 0xffffffff;
459
460 if (c.arg[1] == 0) {
461 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
462 }
463
464 switch (c.arg[0]) {
465 case 1: {
466 PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
467 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)};
468 } break;
469 case 2: {
470 PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
471 } break;
472 default: {
473 PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
474 PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
475 PrintAndLog(" type1: 4 ",c.arg[0]);
476
477 return 1;
478 } break;
479 }
480 */
481 /*
482 unsigned int hi = 0, lo = 0;
483 int n = 0, i = 0;
484 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
485 hi= (hi << 4) | (lo >> 28);
486 lo= (lo << 4) | (n & 0xf);
487 }
488 */
489 // 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)};
490 // PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
491 SendCommand(&c);
492 return 0;
493 }
494
495 int CmdHF14ASnoop(const char *Cmd) {
496 int param = 0;
497
498 if (param_getchar(Cmd, 0) == 'h') {
499 PrintAndLog("It get data from the field and saves it into command buffer.");
500 PrintAndLog("Buffer accessible from command hf 14a list.");
501 PrintAndLog("Usage: hf 14a snoop [c][r]");
502 PrintAndLog("c - triggered by first data from card");
503 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
504 PrintAndLog("sample: hf 14a snoop c r");
505 return 0;
506 }
507
508 for (int i = 0; i < 2; i++) {
509 char ctmp = param_getchar(Cmd, i);
510 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
511 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
512 }
513
514 UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
515 SendCommand(&c);
516 return 0;
517 }
518
519 int CmdHF14ACmdRaw(const char *cmd) {
520 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
521 uint8_t reply=1;
522 uint8_t crc=0;
523 uint8_t power=0;
524 uint8_t active=0;
525 uint8_t active_select=0;
526 uint16_t numbits=0;
527 uint16_t timeout=0;
528 uint8_t bTimeout=0;
529 char buf[5]="";
530 int i=0;
531 uint8_t data[USB_CMD_DATA_SIZE];
532 unsigned int datalen=0, temp;
533
534 if (strlen(cmd)<2) {
535 PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
536 PrintAndLog(" -r do not read response");
537 PrintAndLog(" -c calculate and append CRC");
538 PrintAndLog(" -p leave the signal field ON after receive");
539 PrintAndLog(" -a active signal field ON without select");
540 PrintAndLog(" -s active signal field ON with select");
541 PrintAndLog(" -b number of bits to send. Useful for send partial byte");
542 PrintAndLog(" -t timeout");
543 return 0;
544 }
545
546 // strip
547 while (*cmd==' ' || *cmd=='\t') cmd++;
548
549 while (cmd[i]!='\0') {
550 if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
551 if (cmd[i]=='-') {
552 switch (cmd[i+1]) {
553 case 'r':
554 reply=0;
555 break;
556 case 'c':
557 crc=1;
558 break;
559 case 'p':
560 power=1;
561 break;
562 case 'a':
563 active=1;
564 break;
565 case 's':
566 active_select=1;
567 break;
568 case 'b':
569 sscanf(cmd+i+2,"%d",&temp);
570 numbits = temp & 0xFFFF;
571 i+=3;
572 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
573 i-=2;
574 break;
575 case 't':
576 bTimeout=1;
577 sscanf(cmd+i+2,"%d",&temp);
578 timeout = temp & 0xFFFF;
579 i+=3;
580 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
581 i+=2;
582 break;
583 default:
584 PrintAndLog("Invalid option");
585 return 0;
586 }
587 i+=2;
588 continue;
589 }
590 if ((cmd[i]>='0' && cmd[i]<='9') ||
591 (cmd[i]>='a' && cmd[i]<='f') ||
592 (cmd[i]>='A' && cmd[i]<='F') ) {
593 buf[strlen(buf)+1]=0;
594 buf[strlen(buf)]=cmd[i];
595 i++;
596
597 if (strlen(buf)>=2) {
598 sscanf(buf,"%x",&temp);
599 data[datalen]=(uint8_t)(temp & 0xff);
600 *buf=0;
601 if (++datalen>sizeof(data)){
602 if (crc)
603 PrintAndLog("Buffer is full, we can't add CRC to your data");
604 break;
605 }
606 }
607 continue;
608 }
609 PrintAndLog("Invalid char on input");
610 return 0;
611 }
612 if(crc && datalen>0 && datalen<sizeof(data)-2)
613 {
614 uint8_t first, second;
615 ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
616 data[datalen++] = first;
617 data[datalen++] = second;
618 }
619
620 if(active || active_select)
621 {
622 c.arg[0] |= ISO14A_CONNECT;
623 if(active)
624 c.arg[0] |= ISO14A_NO_SELECT;
625 }
626 if(bTimeout){
627 #define MAX_TIMEOUT 624*105 // max timeout is 624 ms
628 c.arg[0] |= ISO14A_SET_TIMEOUT;
629 c.arg[2] = timeout * 105; // each bit is about 9.4 us
630 if(c.arg[2]>MAX_TIMEOUT) {
631 c.arg[2] = MAX_TIMEOUT;
632 PrintAndLog("Set timeout to 624 ms. The max we can wait for response");
633 }
634 }
635 if(power)
636 c.arg[0] |= ISO14A_NO_DISCONNECT;
637 if(datalen>0)
638 c.arg[0] |= ISO14A_RAW;
639
640 // Max buffer is USB_CMD_DATA_SIZE
641 c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
642 memcpy(c.d.asBytes,data,datalen);
643
644 SendCommand(&c);
645
646 if (reply) {
647 if(active_select)
648 waitCmd(1);
649 if(datalen>0)
650 waitCmd(0);
651 } // if reply
652 return 0;
653 }
654
655 static void waitCmd(uint8_t iSelect)
656 {
657 uint8_t *recv;
658 UsbCommand resp;
659 char *hexout;
660
661 if (WaitForResponseTimeout(CMD_ACK,&resp,10000)) {
662 recv = resp.d.asBytes;
663 uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
664 PrintAndLog("received %i octets",iLen);
665 if(!iLen)
666 return;
667 hexout = (char *)malloc(iLen * 3 + 1);
668 if (hexout != NULL) {
669 for (int i = 0; i < iLen; i++) { // data in hex
670 sprintf(&hexout[i * 3], "%02X ", recv[i]);
671 }
672 PrintAndLog("%s", hexout);
673 free(hexout);
674 } else {
675 PrintAndLog("malloc failed your client has low memory?");
676 }
677 } else {
678 PrintAndLog("timeout while waiting for reply.");
679 }
680 }
681
682 static command_t CommandTable[] =
683 {
684 {"help", CmdHelp, 1, "This help"},
685 {"list", CmdHF14AList, 0, "List ISO 14443a history"},
686 {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
687 {"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
688 {"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"},
689 {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
690 {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
691 {NULL, NULL, 0, NULL}
692 };
693
694 int CmdHF14A(const char *Cmd) {
695 // flush
696 WaitForResponseTimeout(CMD_ACK,NULL,100);
697
698 // parse
699 CmdsParse(CommandTable, Cmd);
700 return 0;
701 }
702
703 int CmdHelp(const char *Cmd)
704 {
705 CmdsHelp(CommandTable);
706 return 0;
707 }
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