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CHG: NEDAP, changed back the preamble. With new parity check it has a decent detec...
[proxmark3-svn] / client / cmdhf.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3 //
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
6 // the license.
7 //-----------------------------------------------------------------------------
8 // High frequency commands
9 //-----------------------------------------------------------------------------
10
11 #include <stdio.h>
12 #include <string.h>
13 #include "proxmark3.h"
14 #include "graph.h"
15 #include "ui.h"
16 #include "cmdparser.h"
17 #include "cmdhf.h"
18 #include "cmdhf14a.h"
19 #include "cmdhf14b.h"
20 #include "cmdhf15.h"
21 #include "cmdhfepa.h"
22 #include "cmdhflegic.h"
23 #include "cmdhficlass.h"
24 #include "cmdhfmf.h"
25 #include "cmdhfmfu.h"
26 #include "cmdhfmfdes.h"
27 #include "cmdhftopaz.h"
28 #include "protocols.h"
29
30 static int CmdHelp(const char *Cmd);
31
32 int CmdHFTune(const char *Cmd) {
33 PrintAndLog("Measuring HF antenna, press button to exit");
34 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING_HF};
35 clearCommandBuffer();
36 SendCommand(&c);
37 return 0;
38 }
39
40
41 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
42 {
43 switch(cmd[0])
44 {
45 case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
46 case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
47 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
48 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
49 if(cmd[1] == 0x70)
50 snprintf(exp,size,"SELECT_UID");
51 else
52 snprintf(exp,size,"ANTICOLL");
53 break;
54 }
55 case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
56 //95 20 = Anticollision of cascade level2
57 //95 70 = Select of cascade level2
58 if(cmd[2] == 0x70)
59 snprintf(exp,size,"SELECT_UID-2");
60 else
61 snprintf(exp,size,"ANTICOLL-2");
62 break;
63 }
64 case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break;
65 case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
66 case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
67 case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); break;
68 case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
69 case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
70 case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
71 case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
72 case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
73 case MIFARE_AUTH_KEYA:{
74 if ( cmdsize > 3)
75 snprintf(exp,size,"AUTH-A(%d)",cmd[1]);
76 else
77 // case MIFARE_ULEV1_VERSION : both 0x60.
78 snprintf(exp,size,"EV1 VERSION");
79 break;
80 }
81 case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
82 case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
83 case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
84 case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
85 case MIFARE_ULC_AUTH_1 : snprintf(exp,size,"AUTH "); break;
86 case MIFARE_ULC_AUTH_2 : snprintf(exp,size,"AUTH_ANSW"); break;
87 case MIFARE_ULEV1_AUTH :
88 if ( cmdsize == 7 )
89 snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
90 else
91 snprintf(exp,size,"PWD-AUTH");
92 break;
93 case MIFARE_ULEV1_FASTREAD : {
94 if ( cmdsize >=3 && cmd[2] <= 0xE6)
95 snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]);
96 else
97 snprintf(exp,size,"?");
98 break;
99 }
100 case MIFARE_ULC_WRITE : {
101 if ( cmd[1] < 0x21 )
102 snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]);
103 else
104 snprintf(exp,size,"?");
105 break;
106 }
107 case MIFARE_ULEV1_READ_CNT :{
108 if ( cmd[1] < 5 )
109 snprintf(exp,size,"READ CNT(%d)",cmd[1]);
110 else
111 snprintf(exp,size,"?");
112 break;
113 }
114 case MIFARE_ULEV1_INCR_CNT : {
115 if ( cmd[1] < 5 )
116 snprintf(exp,size,"INCR(%d)",cmd[1]);
117 else
118 snprintf(exp,size,"?");
119 break;
120 }
121 case MIFARE_ULEV1_READSIG : snprintf(exp,size,"READ_SIG"); break;
122 case MIFARE_ULEV1_CHECKTEAR : snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
123 case MIFARE_ULEV1_VCSL : snprintf(exp,size,"VCSL"); break;
124 default: snprintf(exp,size,"?"); break;
125 }
126 return;
127 }
128
129 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
130 {
131 switch(cmd[0])
132 {
133 case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
134 case ICLASS_CMD_READ_OR_IDENTIFY:{
135 if(cmdsize > 1){
136 snprintf(exp,size,"READ(%d)",cmd[1]);
137 }else{
138 snprintf(exp,size,"IDENTIFY");
139 }
140 break;
141 }
142 case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
143 case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
144 case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
145 case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
146 case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
147 case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break;
148 case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
149 case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
150 case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break;
151 case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break;
152 default: snprintf(exp,size,"?"); break;
153 }
154 return;
155 }
156
157 void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
158 {
159
160 if(cmd[0] == 0x26)
161 {
162 switch(cmd[1]){
163 case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
164 case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
165 default: snprintf(exp,size,"?"); break;
166
167 }
168 }else if(cmd[0] == 0x02)
169 {
170 switch(cmd[1])
171 {
172 case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
173 case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
174 case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
175 case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
176 case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
177 case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
178 case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
179 case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
180 case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
181 case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
182 case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
183 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
184 default: snprintf(exp,size,"?"); break;
185 }
186 }
187 }
188
189 void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
190 {
191 switch(cmd[0]) {
192 case TOPAZ_REQA :snprintf(exp, size, "REQA");break;
193 case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break;
194 case TOPAZ_RID :snprintf(exp, size, "RID");break;
195 case TOPAZ_RALL :snprintf(exp, size, "RALL");break;
196 case TOPAZ_READ :snprintf(exp, size, "READ");break;
197 case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break;
198 case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break;
199 case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break;
200 case TOPAZ_READ8 :snprintf(exp, size, "READ8");break;
201 case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break;
202 case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break;
203 default :snprintf(exp,size,"?"); break;
204 }
205 }
206
207 // iso 7816-3
208 void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
209 // S-block
210 if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
211 switch ( (cmd[0] & 0x3f) ) {
212 case 0x00 : snprintf(exp, size, "S-block RESYNCH req"); break;
213 case 0x20 : snprintf(exp, size, "S-block RESYNCH resp"); break;
214 case 0x01 : snprintf(exp, size, "S-block IFS req"); break;
215 case 0x21 : snprintf(exp, size, "S-block IFS resp"); break;
216 case 0x02 : snprintf(exp, size, "S-block ABORT req"); break;
217 case 0x22 : snprintf(exp, size, "S-block ABORT resp"); break;
218 case 0x03 : snprintf(exp, size, "S-block WTX reqt"); break;
219 case 0x23 : snprintf(exp, size, "S-block WTX resp"); break;
220 default : snprintf(exp, size, "S-block"); break;
221 }
222 }
223 // R-block (ack)
224 else if ( ((cmd[0] & 0xD0) == 0x80) && ( cmdsize > 2) ) {
225 if ( (cmd[0] & 0x10) == 0 )
226 snprintf(exp, size, "R-block ACK");
227 else
228 snprintf(exp, size, "R-block NACK");
229 }
230 // I-block
231 else {
232
233 int pos = (cmd[0] == 2 || cmd[0] == 3) ? 2 : 3;
234 switch ( cmd[pos] ){
235 case ISO7816_READ_BINARY :snprintf(exp, size, "READ BIN");break;
236 case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BIN");break;
237 case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BIN");break;
238 case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BIN");break;
239 case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
240 case ISO7816_WRITE_RECORDS :snprintf(exp, size, "WRITE RECORDS");break;
241 case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break;
242 case ISO7816_UPDATE_RECORD :snprintf(exp, size, "UPDATE RECORD");break;
243 case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break;
244 case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break;
245 case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break;
246 case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break;
247 case ISO7816_INTERNAL_AUTHENTICATION :snprintf(exp, size, "INTERNAL AUTH");break;
248 case ISO7816_EXTERNAL_AUTHENTICATION :snprintf(exp, size, "EXTERNAL AUTH");break;
249 case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break;
250 case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break;
251 default :snprintf(exp,size,"?"); break;
252 }
253 }
254 }
255
256 /**
257 06 00 = INITIATE
258 0E xx = SELECT ID (xx = Chip-ID)
259 0B = Get UID
260 08 yy = Read Block (yy = block number)
261 09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
262 0C = Reset to Inventory
263 0F = Completion
264 0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
265 **/
266
267 void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
268 {
269 switch(cmd[0]){
270 case ISO14443B_REQB : {
271
272 switch ( cmd[2] & 0x07 ) {
273 case 0: snprintf(exp, size,"1 slot ");break;
274 case 1: snprintf(exp, size,"2 slots ");break;
275 case 2: snprintf(exp, size,"4 slots ");break;
276 case 3: snprintf(exp, size,"8 slots ");break;
277 default: snprintf(exp, size,"16 slots ");break;
278 }
279 if ( (cmd[2] & 0x8) )
280 snprintf(exp, size,"WUPB");
281 else
282 snprintf(exp, size,"REQB");
283 break;
284 }
285 case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
286 case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
287 case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
288 case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
289 case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
290 case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
291 case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
292 case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
293 case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
294 case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
295 case ISO14443B_PING : snprintf(exp,size,"PING");break;
296 case ISO14443B_PONG : snprintf(exp,size,"PONG");break;
297 default : snprintf(exp,size ,"?");break;
298 }
299 }
300
301 /**
302 * @brief iso14443A_CRC_check Checks CRC in command or response
303 * @param isResponse
304 * @param data
305 * @param len
306 * @return 0 : CRC-command, CRC not ok
307 * 1 : CRC-command, CRC ok
308 * 2 : Not crc-command
309 */
310
311 uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
312 {
313 uint8_t b1,b2;
314
315 if(len <= 2) return 2;
316
317 if(isResponse & (len < 6)) return 2;
318
319 ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
320 if (b1 != data[len-2] || b2 != data[len-1]) {
321 return 0;
322 } else {
323 return 1;
324 }
325 }
326
327
328 /**
329 * @brief iso14443B_CRC_check Checks CRC in command or response
330 * @param isResponse
331 * @param data
332 * @param len
333 * @return 0 : CRC-command, CRC not ok
334 * 1 : CRC-command, CRC ok
335 * 2 : Not crc-command
336 */
337
338 uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
339 {
340 uint8_t b1,b2;
341
342 if(len <= 2) return 2;
343
344 ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
345 if(b1 != data[len-2] || b2 != data[len-1]) {
346 return 0;
347 }
348 return 1;
349 }
350
351 /**
352 * @brief iclass_CRC_Ok Checks CRC in command or response
353 * @param isResponse
354 * @param data
355 * @param len
356 * @return 0 : CRC-command, CRC not ok
357 * 1 : CRC-command, CRC ok
358 * 2 : Not crc-command
359 */
360 uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
361 {
362 if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
363
364 uint8_t b1, b2;
365
366 if(!isResponse)//Commands to tag
367 {
368 /**
369 These commands should have CRC. Total length leftmost
370 4 READ
371 4 READ4
372 12 UPDATE - unsecured, ends with CRC16
373 14 UPDATE - secured, ends with signature instead
374 4 PAGESEL
375 **/
376 if(len == 4 || len == 12)//Covers three of them
377 {
378 //Don't include the command byte
379 ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
380 return b1 == data[len -2] && b2 == data[len-1];
381 }
382 return 2;
383 }else{
384 /**
385 These tag responses should have CRC. Total length leftmost
386
387 10 READ data[8] crc[2]
388 34 READ4 data[32]crc[2]
389 10 UPDATE data[8] crc[2]
390 10 SELECT csn[8] crc[2]
391 10 IDENTIFY asnb[8] crc[2]
392 10 PAGESEL block1[8] crc[2]
393 10 DETECT csn[8] crc[2]
394
395 These should not
396
397 4 CHECK chip_response[4]
398 8 READCHECK data[8]
399 1 ACTALL sof[1]
400 1 ACT sof[1]
401
402 In conclusion, without looking at the command; any response
403 of length 10 or 34 should have CRC
404 **/
405 if(len != 10 && len != 34) return true;
406
407 ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
408 return b1 == data[len -2] && b2 == data[len-1];
409 }
410 }
411
412
413 bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
414 {
415 return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
416 }
417
418
419 bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
420 {
421 uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
422
423 return(next_records_datalen & 0x8000);
424 }
425
426
427 bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len)
428 {
429
430 #define MAX_TOPAZ_READER_CMD_LEN 16
431
432 uint32_t last_timestamp = timestamp + *duration;
433
434 if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
435
436 memcpy(topaz_reader_command, frame, *data_len);
437
438 while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
439 uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
440 *tracepos += sizeof(uint32_t);
441 uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
442 *tracepos += sizeof(uint16_t);
443 uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
444 *tracepos += sizeof(uint16_t);
445 uint8_t *next_frame = (trace + *tracepos);
446 *tracepos += next_data_len;
447 if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
448 memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
449 *data_len += next_data_len;
450 last_timestamp = next_timestamp + next_duration;
451 } else {
452 // rewind and exit
453 *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
454 break;
455 }
456 uint16_t next_parity_len = (next_data_len-1)/8 + 1;
457 *tracepos += next_parity_len;
458 }
459
460 *duration = last_timestamp - timestamp;
461
462 return true;
463 }
464
465
466 uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
467 {
468 bool isResponse;
469 uint16_t data_len, parity_len;
470 uint32_t duration;
471 uint8_t topaz_reader_command[9];
472 uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
473 char explanation[30] = {0};
474
475 if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
476
477 first_timestamp = *((uint32_t *)(trace));
478 timestamp = *((uint32_t *)(trace + tracepos));
479
480 tracepos += 4;
481 duration = *((uint16_t *)(trace + tracepos));
482 tracepos += 2;
483 data_len = *((uint16_t *)(trace + tracepos));
484 tracepos += 2;
485
486 if (data_len & 0x8000) {
487 data_len &= 0x7fff;
488 isResponse = true;
489 } else {
490 isResponse = false;
491 }
492 parity_len = (data_len-1)/8 + 1;
493
494 if (tracepos + data_len + parity_len > traceLen) {
495 return traceLen;
496 }
497 uint8_t *frame = trace + tracepos;
498 tracepos += data_len;
499 uint8_t *parityBytes = trace + tracepos;
500 tracepos += parity_len;
501
502 if (protocol == TOPAZ && !isResponse) {
503 // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
504 // merge them:
505 if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
506 frame = topaz_reader_command;
507 }
508 }
509
510 //Check the CRC status
511 uint8_t crcStatus = 2;
512
513 if (data_len > 2) {
514 switch (protocol) {
515 case ICLASS:
516 crcStatus = iclass_CRC_check(isResponse, frame, data_len);
517 break;
518 case ISO_14443B:
519 case TOPAZ:
520 crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
521 break;
522 case ISO_14443A:
523 crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
524 break;
525 default:
526 break;
527 }
528 }
529 //0 CRC-command, CRC not ok
530 //1 CRC-command, CRC ok
531 //2 Not crc-command
532
533 //--- Draw the data column
534 char line[16][110];
535
536 for (int j = 0; j < data_len && j/16 < 16; j++) {
537
538 int oddparity = 0x01;
539 int k;
540
541 for (k=0 ; k<8 ; k++) {
542 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
543 }
544 uint8_t parityBits = parityBytes[j>>3];
545 if (protocol != ISO_14443B && protocol != ISO_7816_4 && (isResponse || protocol == ISO_14443A) && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
546 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
547
548 } else {
549 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
550 }
551
552 }
553
554 if (markCRCBytes) {
555 //CRC-command
556 if(crcStatus == 0 || crcStatus == 1) {
557 char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
558 (*pos1) = '[';
559 char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
560 sprintf(pos2, "%c", ']');
561 }
562 }
563
564 if(data_len == 0 )
565 sprintf(line[0],"<empty trace - possible error>");
566
567
568 //--- Draw the CRC column
569 char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
570
571 EndOfTransmissionTimestamp = timestamp + duration;
572
573 if(!isResponse)
574 {
575 switch(protocol) {
576 case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
577 case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
578 case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
579 case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
580 case ISO_7816_4: annotateIso7816(explanation,sizeof(explanation),frame,data_len); break;
581 default: break;
582 }
583 }
584
585 int num_lines = MIN((data_len - 1)/16 + 1, 16);
586 for (int j = 0; j < num_lines ; j++) {
587 if (j == 0) {
588 PrintAndLog(" %10d | %10d | %s |%-64s | %s| %s",
589 (timestamp - first_timestamp),
590 (EndOfTransmissionTimestamp - first_timestamp),
591 (isResponse ? "Tag" : "Rdr"),
592 line[j],
593 (j == num_lines-1) ? crc : " ",
594 (j == num_lines-1) ? explanation : "");
595 } else {
596 PrintAndLog(" | | |%-64s | %s| %s",
597 line[j],
598 (j == num_lines-1) ? crc : " ",
599 (j == num_lines-1) ? explanation : "");
600 }
601 }
602
603 if (is_last_record(tracepos, trace, traceLen)) return traceLen;
604
605 if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
606 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
607 PrintAndLog(" %10d | %10d | %s |fdt (Frame Delay Time): %d",
608 (EndOfTransmissionTimestamp - first_timestamp),
609 (next_timestamp - first_timestamp),
610 " ",
611 (next_timestamp - EndOfTransmissionTimestamp));
612 }
613
614 return tracepos;
615 }
616
617 int usage_hf_list(){
618 PrintAndLog("List protocol data in trace buffer.");
619 PrintAndLog("Usage: hf list <protocol> [f][c]");
620 PrintAndLog(" f - show frame delay times as well");
621 PrintAndLog(" c - mark CRC bytes");
622 PrintAndLog("Supported <protocol> values:");
623 PrintAndLog(" raw - just show raw data without annotations");
624 PrintAndLog(" 14a - interpret data as iso14443a communications");
625 PrintAndLog(" 14b - interpret data as iso14443b communications");
626 PrintAndLog(" iclass - interpret data as iclass communications");
627 PrintAndLog(" topaz - interpret data as topaz communications");
628 PrintAndLog(" 7816 - interpret data as iso7816-4 communications");
629 PrintAndLog("");
630 PrintAndLog("example: hf list 14a f");
631 PrintAndLog(" hf list iclass");
632 return 0;
633 }
634 int usage_hf_search(){
635 PrintAndLog("Usage: hf search");
636 PrintAndLog("Will try to find a HF read out of the unknown tag. Stops when found.");
637 PrintAndLog("Options:");
638 PrintAndLog(" h - This help");
639 PrintAndLog("");
640 return 0;
641 }
642 int usage_hf_snoop(){
643 PrintAndLog("Usage: hf snoop <skip pairs> <skip triggers>");
644 PrintAndLog("The high frequence snoop will assign all available memory on device for snooped data");
645 PrintAndLog("User the 'data samples' command to download from device, and 'data plot' to look at it");
646 PrintAndLog("Press button to quit the snooping.");
647 PrintAndLog("Options:");
648 PrintAndLog(" h - This help");
649 PrintAndLog(" <skip pairs> - skip sample pairs");
650 PrintAndLog(" <skip triggers> - skip number of triggers");
651 PrintAndLog("");
652 PrintAndLog("example: hf snoop");
653 PrintAndLog(" hf snoop 1000 0");
654 return 0;
655 }
656
657 int CmdHFList(const char *Cmd)
658 {
659 clearCommandBuffer();
660
661 bool showWaitCycles = false;
662 bool markCRCBytes = false;
663 char type[10] = {0};
664 //int tlen = param_getstr(Cmd,0,type);
665 char param1 = param_getchar(Cmd, 1);
666 char param2 = param_getchar(Cmd, 2);
667 bool errors = false;
668 uint8_t protocol = 0;
669
670 //Validate params H or empty
671 if (strlen(Cmd) < 1 || param1 == 'h' || param1 == 'H') return usage_hf_list();
672
673 //Validate params F,C
674 if(
675 (param1 != 0 && param1 != 'f' && param1 != 'c') ||
676 (param2 != 0 && param2 != 'f' && param2 != 'c')
677 ) {
678 return usage_hf_list();
679 }
680
681 param_getstr(Cmd,0,type);
682
683 // validate type of output
684 if(strcmp(type, "iclass") == 0) protocol = ICLASS;
685 else if(strcmp(type, "14a") == 0) protocol = ISO_14443A;
686 else if(strcmp(type, "14b") == 0) protocol = ISO_14443B;
687 else if(strcmp(type, "topaz")== 0) protocol = TOPAZ;
688 else if(strcmp(type, "7816")== 0) protocol = ISO_7816_4;
689 else if(strcmp(type, "raw")== 0) protocol = -1;//No crc, no annotations
690 else errors = true;
691
692 if (errors) return usage_hf_list();
693
694 if (param1 == 'f' || param2 == 'f') showWaitCycles = true;
695 if (param1 == 'c' || param2 == 'c') markCRCBytes = true;
696
697 uint8_t *trace;
698 uint16_t tracepos = 0;
699 trace = malloc(USB_CMD_DATA_SIZE);
700
701 // Query for the size of the trace
702 UsbCommand response;
703 GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
704 WaitForResponse(CMD_ACK, &response);
705 uint16_t traceLen = response.arg[2];
706 if (traceLen > USB_CMD_DATA_SIZE) {
707 uint8_t *p = realloc(trace, traceLen);
708 if (p == NULL) {
709 PrintAndLog("Cannot allocate memory for trace");
710 free(trace);
711 return 2;
712 }
713 trace = p;
714 GetFromBigBuf(trace, traceLen, 0);
715 WaitForResponse(CMD_ACK, NULL);
716 }
717
718 PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
719 PrintAndLog("");
720 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
721 PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
722 PrintAndLog("iClass - Timings are not as accurate");
723 PrintAndLog("");
724 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC | Annotation |");
725 PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
726
727 while(tracepos < traceLen)
728 {
729 tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
730 }
731
732 free(trace);
733 return 0;
734 }
735
736 int CmdHFSearch(const char *Cmd){
737
738 char cmdp = param_getchar(Cmd, 0);
739 if (cmdp == 'h' || cmdp == 'H') return usage_hf_search();
740
741 PrintAndLog("");
742 int ans = CmdHF14AReader("s");
743
744 if (ans > 0) {
745 PrintAndLog("\nValid ISO14443-A Tag Found - Quiting Search\n");
746 return ans;
747 }
748 ans = CmdHF14BReader("s");
749 if (ans) {
750 PrintAndLog("\nValid ISO14443-B Tag Found - Quiting Search\n");
751 return ans;
752 }
753 ans = HFiClassReader("", false, false);
754 if (ans) {
755 PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
756 return ans;
757 }
758 ans = HF15Reader("", false);
759 if (ans) {
760 PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
761 return ans;
762 }
763 ans = CmdHFTopazReader("s");
764 if (ans == 0) {
765 PrintAndLog("\nValid Topaz Tag Found - Quiting Search\n");
766 return 1;
767 }
768 PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
769 return 0;
770 }
771
772 int CmdHFSnoop(const char *Cmd)
773 {
774 char cmdp = param_getchar(Cmd, 0);
775 if (cmdp == 'h' || cmdp == 'H') return usage_hf_snoop();
776
777 int skippairs = param_get32ex(Cmd, 0, 0, 10);
778 int skiptriggers = param_get32ex(Cmd, 1, 0, 10);
779
780 UsbCommand c = {CMD_HF_SNIFFER, {skippairs, skiptriggers, 0}};
781 clearCommandBuffer();
782 SendCommand(&c);
783 return 0;
784 }
785
786 static command_t CommandTable[] = {
787 {"help", CmdHelp, 1, "This help"},
788 {"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
789 {"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
790 {"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
791 {"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
792 {"legic", CmdHFLegic, 0, "{ LEGIC RFIDs... }"},
793 {"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
794 {"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
795 {"mfu", CmdHFMFUltra, 1, "{ MIFARE Ultralight RFIDs... }"},
796 {"mfdes", CmdHFMFDes, 1, "{ MIFARE Desfire RFIDs... }"},
797 {"topaz", CmdHFTopaz, 1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
798 {"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
799 {"list", CmdHFList, 1, "List protocol data in trace buffer"},
800 {"search", CmdHFSearch, 1, "Search for known HF tags [preliminary]"},
801 {"snoop", CmdHFSnoop, 0, "<samples to skip (10000)> <triggers to skip (1)> Generic LF/HF Snoop in Testing stage"},
802 {NULL, NULL, 0, NULL}
803 };
804
805 int CmdHF(const char *Cmd) {
806 clearCommandBuffer();
807 CmdsParse(CommandTable, Cmd);
808 return 0;
809 }
810
811 int CmdHelp(const char *Cmd) {
812 CmdsHelp(CommandTable);
813 return 0;
814 }
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