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Add mifare crypto trace decryption utility
[proxmark3-svn] / client / cmdlft55xx.c
1 //-----------------------------------------------------------------------------
2 //
3 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
4 // at your option, any later version. See the LICENSE.txt file for the text of
5 // the license.
6 //-----------------------------------------------------------------------------
7 // Low frequency T55xx commands
8 //-----------------------------------------------------------------------------
9
10 #include <stdio.h>
11 #include <string.h>
12 #include <inttypes.h>
13 #include <time.h>
14 #include "proxmark3.h"
15 #include "ui.h"
16 #include "graph.h"
17 #include "cmdmain.h"
18 #include "cmdparser.h"
19 #include "cmddata.h"
20 #include "cmdlf.h"
21 #include "cmdlft55xx.h"
22 #include "util.h"
23 #include "data.h"
24 #include "lfdemod.h"
25 #include "../common/crc.h"
26 #include "../common/iso14443crc.h"
27 #include "cmdhf14a.h"
28
29 #define CONFIGURATION_BLOCK 0x00
30 #define TRACE_BLOCK 0x01
31
32 // Default configuration
33 t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = FALSE, .offset = 0x00, .block0 = 0x00};
34
35 int usage_t55xx_config(){
36 PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>]");
37 PrintAndLog("Options: ");
38 PrintAndLog(" h This help");
39 PrintAndLog(" b <8|16|32|40|50|64|100|128> Set bitrate");
40 PrintAndLog(" d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NZ|BI|BIa> Set demodulation FSK / ASK / PSK / NZ / Biphase / Biphase A");
41 PrintAndLog(" i [1] Invert data signal, defaults to normal");
42 PrintAndLog(" o [offset] Set offset, where data should start decode in bitstream");
43 PrintAndLog("");
44 PrintAndLog("Examples:");
45 PrintAndLog(" lf t55xx config d FSK - FSK demodulation");
46 PrintAndLog(" lf t55xx config d FSK i 1 - FSK demodulation, inverse data");
47 PrintAndLog(" lf t55xx config d FSK i 1 o 3 - FSK demodulation, inverse data, offset=3,start from position 3 to decode data");
48 PrintAndLog("");
49 return 0;
50 }
51 int usage_t55xx_read(){
52 PrintAndLog("Usage: lf t55xx read <block> <password>");
53 PrintAndLog(" <block>, block number to read. Between 0-7");
54 PrintAndLog(" <password>, OPTIONAL password (8 hex characters)");
55 PrintAndLog("");
56 PrintAndLog("Examples:");
57 PrintAndLog(" lf t55xx read 0 - read data from block 0");
58 PrintAndLog(" lf t55xx read 0 feedbeef - read data from block 0 password feedbeef");
59 PrintAndLog("");
60 return 0;
61 }
62 int usage_t55xx_write(){
63 PrintAndLog("Usage: lf t55xx wr <block> <data> [password]");
64 PrintAndLog(" <block>, block number to write. Between 0-7");
65 PrintAndLog(" <data>, 4 bytes of data to write (8 hex characters)");
66 PrintAndLog(" [password], OPTIONAL password 4bytes (8 hex characters)");
67 PrintAndLog("");
68 PrintAndLog("Examples:");
69 PrintAndLog(" lf t55xx wr 3 11223344 - write 11223344 to block 3");
70 PrintAndLog(" lf t55xx wr 3 11223344 feedbeef - write 11223344 to block 3 password feedbeef");
71 PrintAndLog("");
72 return 0;
73 }
74 int usage_t55xx_trace() {
75 PrintAndLog("Usage: lf t55xx trace [1]");
76 PrintAndLog(" [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");
77 PrintAndLog("");
78 PrintAndLog("Examples:");
79 PrintAndLog(" lf t55xx trace");
80 PrintAndLog(" lf t55xx trace 1");
81 PrintAndLog("");
82 return 0;
83 }
84 int usage_t55xx_info() {
85 PrintAndLog("Usage: lf t55xx info [1]");
86 PrintAndLog(" [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");
87 PrintAndLog("");
88 PrintAndLog("Examples:");
89 PrintAndLog(" lf t55xx info");
90 PrintAndLog(" lf t55xx info 1");
91 PrintAndLog("");
92 return 0;
93 }
94 int usage_t55xx_dump(){
95 PrintAndLog("Usage: lf t55xx dump <password>");
96 PrintAndLog(" <password>, OPTIONAL password 4bytes (8 hex symbols)");
97 PrintAndLog("");
98 PrintAndLog("Examples:");
99 PrintAndLog(" lf t55xx dump");
100 PrintAndLog(" lf t55xx dump feedbeef");
101 PrintAndLog("");
102 return 0;
103 }
104 int usage_t55xx_detect(){
105 PrintAndLog("Usage: lf t55xx detect");
106 PrintAndLog("");
107 PrintAndLog("Examples:");
108 PrintAndLog(" lf t55xx detect");
109 PrintAndLog(" lf t55xx detect 1");
110 PrintAndLog("");
111 return 0;
112 }
113
114 static int CmdHelp(const char *Cmd);
115
116 int CmdT55xxSetConfig(const char *Cmd) {
117
118 uint8_t offset = 0;
119 bool errors = FALSE;
120 uint8_t cmdp = 0;
121 char modulation[5] = {0x00};
122 char tmp = 0x00;
123 uint8_t bitRate = 0;
124 uint8_t rates[9] = {8,16,32,40,50,64,100,128,0};
125 while(param_getchar(Cmd, cmdp) != 0x00 && !errors)
126 {
127 tmp = param_getchar(Cmd, cmdp);
128 switch(tmp)
129 {
130 case 'h':
131 case 'H':
132 return usage_t55xx_config();
133 case 'b':
134 errors |= param_getdec(Cmd, cmdp+1, &bitRate);
135 if ( !errors){
136 uint8_t i = 0;
137 for (; i < 9; i++){
138 if (rates[i]==bitRate) {
139 config.bitrate = i;
140 break;
141 }
142 }
143 if (i==9) errors = TRUE;
144 }
145 cmdp+=2;
146 break;
147 case 'd':
148 param_getstr(Cmd, cmdp+1, modulation);
149 cmdp += 2;
150
151 if ( strcmp(modulation, "FSK" ) == 0) {
152 config.modulation = DEMOD_FSK;
153 } else if ( strcmp(modulation, "FSK1" ) == 0) {
154 config.modulation = DEMOD_FSK1;
155 config.inverted=1;
156 } else if ( strcmp(modulation, "FSK1a" ) == 0) {
157 config.modulation = DEMOD_FSK1a;
158 config.inverted=0;
159 } else if ( strcmp(modulation, "FSK2" ) == 0) {
160 config.modulation = DEMOD_FSK2;
161 config.inverted=0;
162 } else if ( strcmp(modulation, "FSK2a" ) == 0) {
163 config.modulation = DEMOD_FSK2a;
164 config.inverted=1;
165 } else if ( strcmp(modulation, "ASK" ) == 0) {
166 config.modulation = DEMOD_ASK;
167 } else if ( strcmp(modulation, "NRZ" ) == 0) {
168 config.modulation = DEMOD_NRZ;
169 } else if ( strcmp(modulation, "PSK1" ) == 0) {
170 config.modulation = DEMOD_PSK1;
171 } else if ( strcmp(modulation, "PSK2" ) == 0) {
172 config.modulation = DEMOD_PSK2;
173 } else if ( strcmp(modulation, "PSK3" ) == 0) {
174 config.modulation = DEMOD_PSK3;
175 } else if ( strcmp(modulation, "BIa" ) == 0) {
176 config.modulation = DEMOD_BIa;
177 config.inverted=1;
178 } else if ( strcmp(modulation, "BI" ) == 0) {
179 config.modulation = DEMOD_BI;
180 config.inverted=0;
181 } else {
182 PrintAndLog("Unknown modulation '%s'", modulation);
183 errors = TRUE;
184 }
185 break;
186 case 'i':
187 config.inverted = param_getchar(Cmd,cmdp+1) == '1';
188 cmdp+=2;
189 break;
190 case 'o':
191 errors |= param_getdec(Cmd, cmdp+1, &offset);
192 if ( !errors )
193 config.offset = offset;
194 cmdp+=2;
195 break;
196 default:
197 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
198 errors = TRUE;
199 break;
200 }
201 }
202
203 // No args
204 if (cmdp == 0) {
205 printConfiguration( config );
206 return 0;
207 }
208 //Validations
209 if (errors)
210 return usage_t55xx_config();
211
212 config.block0 = 0;
213 printConfiguration ( config );
214 return 0;
215 }
216
217 int CmdT55xxReadBlock(const char *Cmd) {
218 int block = -1;
219 int password = 0xFFFFFFFF; //default to blank Block 7
220
221 char cmdp = param_getchar(Cmd, 0);
222 if (cmdp == 'h' || cmdp == 'H')
223 return usage_t55xx_read();
224
225 int res = sscanf(Cmd, "%d %x", &block, &password);
226
227 if ( res < 1 || res > 2 )
228 return usage_t55xx_read();
229
230
231 if ((block < 0) | (block > 7)) {
232 PrintAndLog("Block must be between 0 and 7");
233 return 1;
234 }
235
236 UsbCommand c = {CMD_T55XX_READ_BLOCK, {0, block, 0}};
237 c.d.asBytes[0] = 0x0;
238
239 //Password mode
240 if ( res == 2 ) {
241 c.arg[2] = password;
242 c.d.asBytes[0] = 0x1;
243 }
244
245 clearCommandBuffer();
246 SendCommand(&c);
247 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
248 PrintAndLog("command execution time out");
249 return 2;
250 }
251
252 uint8_t got[12000];
253 GetFromBigBuf(got,sizeof(got),0);
254 WaitForResponse(CMD_ACK,NULL);
255 setGraphBuf(got, 12000);
256 DemodBufferLen=0;
257 if (!DecodeT55xxBlock()) return 3;
258 char blk[10]={0};
259 sprintf(blk,"%d", block);
260 printT55xxBlock(blk);
261 return 0;
262 }
263
264 bool DecodeT55xxBlock(){
265
266 char buf[30] = {0x00};
267 char *cmdStr = buf;
268 int ans = 0;
269 uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};
270 DemodBufferLen = 0x00;
271
272 //trim 1/2 a clock from beginning
273 snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );
274 CmdLtrim(cmdStr);
275 switch( config.modulation ){
276 case DEMOD_FSK:
277 snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );
278 ans = FSKrawDemod(cmdStr, FALSE);
279 break;
280 case DEMOD_FSK1:
281 case DEMOD_FSK1a:
282 snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );
283 ans = FSKrawDemod(cmdStr, FALSE);
284 break;
285 case DEMOD_FSK2:
286 case DEMOD_FSK2a:
287 snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );
288 ans = FSKrawDemod(cmdStr, FALSE);
289 break;
290 case DEMOD_ASK:
291 snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );
292 ans = ASKDemod(cmdStr, FALSE, FALSE, 1);
293 break;
294 case DEMOD_PSK1:
295 snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );
296 ans = PSKDemod(cmdStr, FALSE);
297 break;
298 case DEMOD_PSK2: //inverted won't affect this
299 case DEMOD_PSK3: //not fully implemented
300 snprintf(cmdStr, sizeof(buf),"%d 0 1", bitRate[config.bitrate] );
301 ans = PSKDemod(cmdStr, FALSE);
302 psk1TOpsk2(DemodBuffer, DemodBufferLen);
303 break;
304 case DEMOD_NRZ:
305 snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
306 ans = NRZrawDemod(cmdStr, FALSE);
307 break;
308 case DEMOD_BI:
309 case DEMOD_BIa:
310 snprintf(cmdStr, sizeof(buf),"0 %d %d 0", bitRate[config.bitrate], config.inverted );
311 ans = ASKbiphaseDemod(cmdStr, FALSE);
312 break;
313 default:
314 return FALSE;
315 }
316 return (bool) ans;
317 }
318
319 int CmdT55xxDetect(const char *Cmd){
320
321 char cmdp = param_getchar(Cmd, 0);
322 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
323 return usage_t55xx_detect();
324
325 if (strlen(Cmd)==0)
326 AquireData( CONFIGURATION_BLOCK );
327
328 if ( !tryDetectModulation() )
329 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
330
331 return 0;
332 }
333
334 // detect configuration?
335 bool tryDetectModulation(){
336 char cmdStr[8] = {0};
337 uint8_t hits = 0;
338 t55xx_conf_block_t tests[15];
339 int bitRate=0;
340 uint8_t fc1 = 0, fc2 = 0, clk=0;
341 save_restoreGB(1);
342 if (GetFskClock("", FALSE, FALSE)){
343 fskClocks(&fc1, &fc2, &clk, FALSE);
344 sprintf(cmdStr,"%d", clk/2);
345 CmdLtrim(cmdStr);
346 if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)){
347 tests[hits].modulation = DEMOD_FSK;
348 if (fc1==8 && fc2 == 5)
349 tests[hits].modulation = DEMOD_FSK1a;
350 else if (fc1==10 && fc2 == 8)
351 tests[hits].modulation = DEMOD_FSK2;
352 tests[hits].bitrate = bitRate;
353 tests[hits].inverted = FALSE;
354 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
355 ++hits;
356 }
357 if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)) {
358 tests[hits].modulation = DEMOD_FSK;
359 if (fc1 == 8 && fc2 == 5)
360 tests[hits].modulation = DEMOD_FSK1;
361 else if (fc1 == 10 && fc2 == 8)
362 tests[hits].modulation = DEMOD_FSK2a;
363
364 tests[hits].bitrate = bitRate;
365 tests[hits].inverted = TRUE;
366 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
367 ++hits;
368 }
369 } else {
370 clk = GetAskClock("", FALSE, FALSE);
371 if (clk>0) {
372 sprintf(cmdStr,"%d", clk/2);
373 CmdLtrim(cmdStr);
374 if ( ASKDemod("0 0 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {
375 tests[hits].modulation = DEMOD_ASK;
376 tests[hits].bitrate = bitRate;
377 tests[hits].inverted = FALSE;
378 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
379 ++hits;
380 }
381 if ( ASKDemod("0 1 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {
382 tests[hits].modulation = DEMOD_ASK;
383 tests[hits].bitrate = bitRate;
384 tests[hits].inverted = TRUE;
385 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
386 ++hits;
387 }
388 if ( ASKbiphaseDemod("0 0 0 0", FALSE) && test(DEMOD_BI, &tests[hits].offset, &bitRate) ) {
389 tests[hits].modulation = DEMOD_BI;
390 tests[hits].bitrate = bitRate;
391 tests[hits].inverted = FALSE;
392 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
393 ++hits;
394 }
395 if ( ASKbiphaseDemod("0 0 1 0", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate) ) {
396 tests[hits].modulation = DEMOD_BIa;
397 tests[hits].bitrate = bitRate;
398 tests[hits].inverted = TRUE;
399 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
400 ++hits;
401 }
402 }
403 //undo trim from ask
404 save_restoreGB(0);
405 clk = GetNrzClock("", FALSE, FALSE);
406 if (clk>0) {
407 sprintf(cmdStr,"%d", clk/2);
408 CmdLtrim(cmdStr);
409 if ( NRZrawDemod("0 0 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {
410 tests[hits].modulation = DEMOD_NRZ;
411 tests[hits].bitrate = bitRate;
412 tests[hits].inverted = FALSE;
413 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
414 ++hits;
415 }
416
417 if ( NRZrawDemod("0 1 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {
418 tests[hits].modulation = DEMOD_NRZ;
419 tests[hits].bitrate = bitRate;
420 tests[hits].inverted = TRUE;
421 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
422 ++hits;
423 }
424 }
425
426 //undo trim from nrz
427 save_restoreGB(0);
428 clk = GetPskClock("", FALSE, FALSE);
429 if (clk>0) {
430 PrintAndLog("clk %d",clk);
431 sprintf(cmdStr,"%d", clk/2);
432 CmdLtrim(cmdStr);
433 if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {
434 tests[hits].modulation = DEMOD_PSK1;
435 tests[hits].bitrate = bitRate;
436 tests[hits].inverted = FALSE;
437 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
438 ++hits;
439 }
440 if ( PSKDemod("0 1 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {
441 tests[hits].modulation = DEMOD_PSK1;
442 tests[hits].bitrate = bitRate;
443 tests[hits].inverted = TRUE;
444 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
445 ++hits;
446 }
447 // PSK2 - needs a call to psk1TOpsk2.
448 if ( PSKDemod("0 0 1", FALSE)) {
449 psk1TOpsk2(DemodBuffer, DemodBufferLen);
450 if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate)){
451 tests[hits].modulation = DEMOD_PSK2;
452 tests[hits].bitrate = bitRate;
453 tests[hits].inverted = FALSE;
454 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
455 ++hits;
456 }
457 } // inverse waves does not affect this demod
458 // PSK3 - needs a call to psk1TOpsk2.
459 if ( PSKDemod("0 0 1", FALSE)) {
460 psk1TOpsk2(DemodBuffer, DemodBufferLen);
461 if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate)){
462 tests[hits].modulation = DEMOD_PSK3;
463 tests[hits].bitrate = bitRate;
464 tests[hits].inverted = FALSE;
465 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
466 ++hits;
467 }
468 } // inverse waves does not affect this demod
469 }
470 }
471 if ( hits == 1) {
472 config.modulation = tests[0].modulation;
473 config.bitrate = tests[0].bitrate;
474 config.inverted = tests[0].inverted;
475 config.offset = tests[0].offset;
476 config.block0 = tests[0].block0;
477 printConfiguration( config );
478 return TRUE;
479 }
480
481 if ( hits > 1) {
482 PrintAndLog("Found [%d] possible matches for modulation.",hits);
483 for(int i=0; i<hits; ++i){
484 PrintAndLog("--[%d]---------------", i+1);
485 printConfiguration( tests[i] );
486 }
487 }
488 return FALSE;
489 }
490
491 bool testModulation(uint8_t mode, uint8_t modread){
492 switch( mode ){
493 case DEMOD_FSK:
494 if (modread > 3 && modread < 8) return TRUE;
495 break;
496 case DEMOD_ASK:
497 if (modread == DEMOD_ASK) return TRUE;
498 break;
499 case DEMOD_PSK1:
500 if (modread == DEMOD_PSK1) return TRUE;
501 break;
502 case DEMOD_PSK2:
503 if (modread == DEMOD_PSK2) return TRUE;
504 break;
505 case DEMOD_PSK3:
506 if (modread == DEMOD_PSK3) return TRUE;
507 break;
508 case DEMOD_NRZ:
509 if (modread == DEMOD_NRZ) return TRUE;
510 break;
511 case DEMOD_BI:
512 if (modread == DEMOD_BI) return TRUE;
513 break;
514 case DEMOD_BIa:
515 if (modread == DEMOD_BIa) return TRUE;
516 break;
517 default:
518 return FALSE;
519 }
520 return FALSE;
521 }
522
523 bool testBitRate(uint8_t readRate, uint8_t mod){
524 uint8_t expected[8] = {8, 16, 32, 40, 50, 64, 100, 128};
525 uint8_t detRate = 0;
526 switch( mod ){
527 case DEMOD_FSK:
528 case DEMOD_FSK1:
529 case DEMOD_FSK1a:
530 case DEMOD_FSK2:
531 case DEMOD_FSK2a:
532 detRate = GetFskClock("",FALSE, FALSE);
533 if (expected[readRate] == detRate)
534 return TRUE;
535 break;
536 case DEMOD_ASK:
537 case DEMOD_BI:
538 case DEMOD_BIa:
539 detRate = GetAskClock("",FALSE, FALSE);
540 if (expected[readRate] == detRate)
541 return TRUE;
542 break;
543 case DEMOD_PSK1:
544 case DEMOD_PSK2:
545 case DEMOD_PSK3:
546 detRate = GetPskClock("",FALSE, FALSE);
547 if (expected[readRate] == detRate)
548 return TRUE;
549 break;
550 case DEMOD_NRZ:
551 detRate = GetNrzClock("",FALSE, FALSE);
552 if (expected[readRate] == detRate)
553 return TRUE;
554 break;
555 default:
556 return FALSE;
557 }
558 return FALSE;
559 }
560
561 bool test(uint8_t mode, uint8_t *offset, int *fndBitRate){
562
563 if ( DemodBufferLen < 64 ) return FALSE;
564 uint8_t si = 0;
565 for (uint8_t idx = 0; idx < 64; idx++){
566 si = idx;
567 if ( PackBits(si, 32, DemodBuffer) == 0x00 ) continue;
568
569 uint8_t safer = PackBits(si, 4, DemodBuffer); si += 4; //master key
570 uint8_t resv = PackBits(si, 4, DemodBuffer); si += 4; //was 7 & +=7+3 //should be only 4 bits if extended mode
571 // 2nibble must be zeroed.
572 // moved test to here, since this gets most faults first.
573 if ( resv > 0x00) continue;
574
575 uint8_t xtRate = PackBits(si, 3, DemodBuffer); si += 3; //extended mode part of rate
576 int bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate
577 if (bitRate > 7) continue;
578 uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode
579 uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1;
580 //uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr
581 uint8_t nml01 = PackBits(si, 1, DemodBuffer); si += 1+5; //bit 24, 30, 31 could be tested for 0 if not extended mode
582 uint8_t nml02 = PackBits(si, 2, DemodBuffer); si += 2;
583
584 //if extended mode
585 bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? TRUE : FALSE;
586
587 if (!extMode){
588 if (nml01 || nml02 || xtRate) continue;
589 }
590 //test modulation
591 if (!testModulation(mode, modread)) continue;
592 if (!testBitRate(bitRate, mode)) continue;
593 *fndBitRate = bitRate;
594 *offset = idx;
595 return TRUE;
596 }
597 return FALSE;
598 }
599
600 void printT55xxBlock(const char *blockNum){
601
602 uint8_t i = config.offset;
603 uint8_t endpos = 32 + i;
604 uint32_t blockData = 0;
605 uint8_t bits[64] = {0x00};
606
607 if ( !DemodBufferLen) return;
608
609 if ( endpos > DemodBufferLen){
610 PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i, DemodBufferLen-32);
611 return;
612 }
613
614 for (; i < endpos; ++i)
615 bits[i - config.offset]=DemodBuffer[i];
616
617 blockData = PackBits(0, 32, bits);
618 PrintAndLog("[%s] 0x%08X %s", blockNum, blockData, sprint_bin(bits,32));
619 }
620
621 int special(const char *Cmd) {
622 uint32_t blockData = 0;
623 uint8_t bits[32] = {0x00};
624
625 PrintAndLog("[OFFSET] [DATA] [BINARY]");
626 PrintAndLog("----------------------------------------------------");
627 int i,j = 0;
628 for (; j < 64; ++j){
629
630 for (i = 0; i < 32; ++i)
631 bits[i]=DemodBuffer[j+i];
632
633 blockData = PackBits(0, 32, bits);
634
635 PrintAndLog("[%02d] 0x%08X %s",j , blockData, sprint_bin(bits,32));
636 }
637 return 0;
638 }
639
640 void printConfiguration( t55xx_conf_block_t b){
641 PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) );
642 PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate) );
643 PrintAndLog("Inverted : %s", (b.inverted) ? "Yes" : "No" );
644 PrintAndLog("Offset : %d", b.offset);
645 PrintAndLog("Block0 : 0x%08X", b.block0);
646 PrintAndLog("");
647 }
648
649 int CmdT55xxWriteBlock(const char *Cmd)
650 {
651 int block = 8; //default to invalid block
652 int data = 0xFFFFFFFF; //default to blank Block
653 int password = 0xFFFFFFFF; //default to blank Block 7
654
655 char cmdp = param_getchar(Cmd, 0);
656 if (cmdp == 'h' || cmdp == 'H') {
657 usage_t55xx_write();
658 return 0;
659 }
660
661 int res = sscanf(Cmd, "%d %x %x",&block, &data, &password);
662
663 if ( res < 2 || res > 3) {
664 usage_t55xx_write();
665 return 1;
666 }
667
668 if (block > 7) {
669 PrintAndLog("Block number must be between 0 and 7");
670 return 1;
671 }
672
673 UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};
674 UsbCommand resp;
675 c.d.asBytes[0] = 0x0;
676
677 PrintAndLog("Writing to block: %d data : 0x%08X", block, data);
678
679 //Password mode
680 if (res == 3) {
681 c.arg[2] = password;
682 c.d.asBytes[0] = 0x1;
683 PrintAndLog("pwd : 0x%08X", password);
684 }
685 clearCommandBuffer();
686 SendCommand(&c);
687 if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
688 PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)");
689 return -1;
690 }
691 return 0;
692 }
693
694 int CmdT55xxReadTrace(const char *Cmd)
695 {
696 char cmdp = param_getchar(Cmd, 0);
697
698 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
699 return usage_t55xx_trace();
700
701 if (strlen(Cmd)==0)
702 AquireData( TRACE_BLOCK );
703
704 if (!DecodeT55xxBlock()) return 1;
705
706 if ( !DemodBufferLen) return 1;
707
708 RepaintGraphWindow();
709 uint8_t repeat = 0;
710 if (config.offset > 5)
711 repeat = 32;
712 uint8_t si = config.offset+repeat;
713 uint32_t bl0 = PackBits(si, 32, DemodBuffer);
714 uint32_t bl1 = PackBits(si+32, 32, DemodBuffer);
715
716 uint32_t acl = PackBits(si, 8, DemodBuffer); si += 8;
717 uint32_t mfc = PackBits(si, 8, DemodBuffer); si += 8;
718 uint32_t cid = PackBits(si, 5, DemodBuffer); si += 5;
719 uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;
720 uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;
721 uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;
722 uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;
723 uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;
724 uint32_t dw = PackBits(si, 15, DemodBuffer);
725
726 time_t t = time(NULL);
727 struct tm tm = *localtime(&t);
728 if ( year > tm.tm_year-110)
729 year += 2000;
730 else
731 year += 2010;
732
733 if ( acl != 0xE0 ) {
734 PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");
735 return 1;
736 }
737
738 PrintAndLog("");
739 PrintAndLog("-- T55xx Trace Information ----------------------------------");
740 PrintAndLog("-------------------------------------------------------------");
741 PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1) : 0x%02X (%d)", acl, acl);
742 PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6) : 0x%02X (%d) - %s", mfc, mfc, getTagInfo(mfc));
743 PrintAndLog(" CID : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));
744 PrintAndLog(" ICR IC Revision : %d",icr );
745 PrintAndLog(" Manufactured");
746 PrintAndLog(" Year/Quarter : %d/%d",year, quarter);
747 PrintAndLog(" Lot ID : %d", lotid );
748 PrintAndLog(" Wafer number : %d", wafer);
749 PrintAndLog(" Die Number : %d", dw);
750 PrintAndLog("-------------------------------------------------------------");
751 PrintAndLog(" Raw Data - Page 1");
752 PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(DemodBuffer+config.offset+repeat,32) );
753 PrintAndLog(" Block 1 : 0x%08X %s", bl1, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );
754 PrintAndLog("-------------------------------------------------------------");
755
756 /*
757 TRACE - BLOCK O
758 Bits Definition HEX
759 1-8 ACL Allocation class (ISO/IEC 15963-1) 0xE0
760 9-16 MFC Manufacturer ID (ISO/IEC 7816-6) 0x15 Atmel Corporation
761 17-21 CID 0x1 = Atmel ATA5577M1 0x2 = Atmel ATA5577M2
762 22-24 ICR IC revision
763 25-28 YEAR (BCD encoded) 9 (= 2009)
764 29-30 QUARTER 1,2,3,4
765 31-32 LOT ID
766
767 TRACE - BLOCK 1
768 1-12 LOT ID
769 13-17 Wafer number
770 18-32 DW, die number sequential
771 */
772
773 return 0;
774 }
775
776 int CmdT55xxInfo(const char *Cmd){
777 /*
778 Page 0 Block 0 Configuration data.
779 Normal mode
780 Extended mode
781 */
782 char cmdp = param_getchar(Cmd, 0);
783
784 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
785 return usage_t55xx_info();
786
787 if (strlen(Cmd)==0)
788 AquireData( CONFIGURATION_BLOCK );
789
790 if (!DecodeT55xxBlock()) return 1;
791
792 if ( DemodBufferLen < 32) return 1;
793
794 uint8_t si = config.offset;
795 uint32_t bl0 = PackBits(si, 32, DemodBuffer);
796
797 uint32_t safer = PackBits(si, 4, DemodBuffer); si += 4;
798 uint32_t resv = PackBits(si, 7, DemodBuffer); si += 7;
799 uint32_t dbr = PackBits(si, 3, DemodBuffer); si += 3;
800 uint32_t extend = PackBits(si, 1, DemodBuffer); si += 1;
801 uint32_t datamod = PackBits(si, 5, DemodBuffer); si += 5;
802 uint32_t pskcf = PackBits(si, 2, DemodBuffer); si += 2;
803 uint32_t aor = PackBits(si, 1, DemodBuffer); si += 1;
804 uint32_t otp = PackBits(si, 1, DemodBuffer); si += 1;
805 uint32_t maxblk = PackBits(si, 3, DemodBuffer); si += 3;
806 uint32_t pwd = PackBits(si, 1, DemodBuffer); si += 1;
807 uint32_t sst = PackBits(si, 1, DemodBuffer); si += 1;
808 uint32_t fw = PackBits(si, 1, DemodBuffer); si += 1;
809 uint32_t inv = PackBits(si, 1, DemodBuffer); si += 1;
810 uint32_t por = PackBits(si, 1, DemodBuffer); si += 1;
811
812 PrintAndLog("");
813 PrintAndLog("-- T55xx Configuration & Tag Information --------------------");
814 PrintAndLog("-------------------------------------------------------------");
815 PrintAndLog(" Safer key : %s", GetSaferStr(safer));
816 PrintAndLog(" reserved : %d", resv);
817 PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr));
818 PrintAndLog(" eXtended mode : %s", (extend) ? "Yes - Warning":"No");
819 PrintAndLog(" Modulation : %s", GetModulationStr(datamod));
820 PrintAndLog(" PSK clock frequency : %d", pskcf);
821 PrintAndLog(" AOR - Answer on Request : %s", (aor) ? "Yes":"No");
822 PrintAndLog(" OTP - One Time Pad : %s", (otp) ? "Yes - Warning":"No" );
823 PrintAndLog(" Max block : %d", maxblk);
824 PrintAndLog(" Password mode : %s", (pwd) ? "Yes":"No");
825 PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");
826 PrintAndLog(" Fast Write : %s", (fw) ? "Yes":"No");
827 PrintAndLog(" Inverse data : %s", (inv) ? "Yes":"No");
828 PrintAndLog(" POR-Delay : %s", (por) ? "Yes":"No");
829 PrintAndLog("-------------------------------------------------------------");
830 PrintAndLog(" Raw Data - Page 0");
831 PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(DemodBuffer+config.offset,32) );
832 PrintAndLog("-------------------------------------------------------------");
833
834 return 0;
835 }
836
837 int CmdT55xxDump(const char *Cmd){
838
839 char s[20] = {0x00};
840 uint8_t pwd[4] = {0x00};
841
842 char cmdp = param_getchar(Cmd, 0);
843 if ( cmdp == 'h' || cmdp == 'H') {
844 usage_t55xx_dump();
845 return 0;
846 }
847
848 bool hasPwd = ( strlen(Cmd) > 0);
849 if ( hasPwd ){
850 if (param_gethex(Cmd, 0, pwd, 8)) {
851 PrintAndLog("password must include 8 HEX symbols");
852 return 1;
853 }
854 }
855
856 for ( int i = 0; i <8; ++i){
857 memset(s,0,sizeof(s));
858 if ( hasPwd ) {
859 sprintf(s,"%d %02x%02x%02x%02x", i, pwd[0],pwd[1],pwd[2],pwd[3]);
860 } else {
861 sprintf(s,"%d", i);
862 }
863 CmdT55xxReadBlock(s);
864 }
865 return 0;
866 }
867
868 int AquireData( uint8_t block ){
869
870 UsbCommand c;
871
872 if ( block == CONFIGURATION_BLOCK )
873 c.cmd = CMD_T55XX_READ_BLOCK;
874 else if (block == TRACE_BLOCK )
875 c.cmd = CMD_T55XX_READ_TRACE;
876
877 c.arg[0] = 0x00;
878 c.arg[1] = 0x00;
879 c.arg[2] = 0x00;
880 c.d.asBytes[0] = 0x0;
881
882 //Password mode
883 // if ( res == 2 ) {
884 // c.arg[2] = password;
885 // c.d.asBytes[0] = 0x1;
886 // }
887
888 clearCommandBuffer();
889 SendCommand(&c);
890 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
891 PrintAndLog("command execution time out");
892 return 1;
893 }
894
895 uint8_t got[12000];
896 GetFromBigBuf(got,sizeof(got),0);
897 WaitForResponse(CMD_ACK,NULL);
898 setGraphBuf(got, 12000);
899 return 0;
900 }
901
902 char * GetBitRateStr(uint32_t id){
903 static char buf[25];
904
905 char *retStr = buf;
906 switch (id){
907 case 0:
908 snprintf(retStr,sizeof(buf),"%d - RF/8",id);
909 break;
910 case 1:
911 snprintf(retStr,sizeof(buf),"%d - RF/16",id);
912 break;
913 case 2:
914 snprintf(retStr,sizeof(buf),"%d - RF/32",id);
915 break;
916 case 3:
917 snprintf(retStr,sizeof(buf),"%d - RF/40",id);
918 break;
919 case 4:
920 snprintf(retStr,sizeof(buf),"%d - RF/50",id);
921 break;
922 case 5:
923 snprintf(retStr,sizeof(buf),"%d - RF/64",id);
924 break;
925 case 6:
926 snprintf(retStr,sizeof(buf),"%d - RF/100",id);
927 break;
928 case 7:
929 snprintf(retStr,sizeof(buf),"%d - RF/128",id);
930 break;
931 default:
932 snprintf(retStr,sizeof(buf),"%d - (Unknown)",id);
933 break;
934 }
935
936 return buf;
937 }
938
939 char * GetSaferStr(uint32_t id){
940 static char buf[40];
941 char *retStr = buf;
942
943 snprintf(retStr,sizeof(buf),"%d",id);
944 if (id == 6) {
945 snprintf(retStr,sizeof(buf),"%d - passwd",id);
946 }
947 if (id == 9 ){
948 snprintf(retStr,sizeof(buf),"%d - testmode",id);
949 }
950
951 return buf;
952 }
953
954 char * GetModulationStr( uint32_t id){
955 static char buf[60];
956 char *retStr = buf;
957
958 switch (id){
959 case 0:
960 snprintf(retStr,sizeof(buf),"%d - DIRECT (ASK/NRZ)",id);
961 break;
962 case 1:
963 snprintf(retStr,sizeof(buf),"%d - PSK 1 phase change when input changes",id);
964 break;
965 case 2:
966 snprintf(retStr,sizeof(buf),"%d - PSK 2 phase change on bitclk if input high",id);
967 break;
968 case 3:
969 snprintf(retStr,sizeof(buf),"%d - PSK 3 phase change on rising edge of input",id);
970 break;
971 case 4:
972 snprintf(retStr,sizeof(buf),"%d - FSK 1 RF/8 RF/5",id);
973 break;
974 case 5:
975 snprintf(retStr,sizeof(buf),"%d - FSK 2 RF/8 RF/10",id);
976 break;
977 case 6:
978 snprintf(retStr,sizeof(buf),"%d - FSK 1a RF/5 RF/8",id);
979 break;
980 case 7:
981 snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10 RF/8",id);
982 break;
983 case 8:
984 snprintf(retStr,sizeof(buf),"%d - Manchester",id);
985 break;
986 case 16:
987 snprintf(retStr,sizeof(buf),"%d - Biphase",id);
988 break;
989 case 0x18:
990 snprintf(retStr,sizeof(buf),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id);
991 break;
992 case 17:
993 snprintf(retStr,sizeof(buf),"%d - Reserved",id);
994 break;
995 default:
996 snprintf(retStr,sizeof(buf),"0x%02X (Unknown)",id);
997 break;
998 }
999 return buf;
1000 }
1001
1002 char * GetModelStrFromCID(uint32_t cid){
1003
1004 static char buf[10];
1005 char *retStr = buf;
1006
1007 if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");
1008 if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2");
1009 return buf;
1010 }
1011
1012 char * GetSelectedModulationStr( uint8_t id){
1013
1014 static char buf[20];
1015 char *retStr = buf;
1016
1017 switch (id){
1018 case DEMOD_FSK:
1019 snprintf(retStr,sizeof(buf),"FSK");
1020 break;
1021 case DEMOD_FSK1:
1022 snprintf(retStr,sizeof(buf),"FSK1");
1023 break;
1024 case DEMOD_FSK1a:
1025 snprintf(retStr,sizeof(buf),"FSK1a");
1026 break;
1027 case DEMOD_FSK2:
1028 snprintf(retStr,sizeof(buf),"FSK2");
1029 break;
1030 case DEMOD_FSK2a:
1031 snprintf(retStr,sizeof(buf),"FSK2a");
1032 break;
1033 case DEMOD_ASK:
1034 snprintf(retStr,sizeof(buf),"ASK");
1035 break;
1036 case DEMOD_NRZ:
1037 snprintf(retStr,sizeof(buf),"DIRECT/NRZ");
1038 break;
1039 case DEMOD_PSK1:
1040 snprintf(retStr,sizeof(buf),"PSK1");
1041 break;
1042 case DEMOD_PSK2:
1043 snprintf(retStr,sizeof(buf),"PSK2");
1044 break;
1045 case DEMOD_PSK3:
1046 snprintf(retStr,sizeof(buf),"PSK3");
1047 break;
1048 case DEMOD_BI:
1049 snprintf(retStr,sizeof(buf),"BIPHASE");
1050 break;
1051 case DEMOD_BIa:
1052 snprintf(retStr,sizeof(buf),"BIPHASEa - (CDP)");
1053 break;
1054 default:
1055 snprintf(retStr,sizeof(buf),"(Unknown)");
1056 break;
1057 }
1058 return buf;
1059 }
1060
1061 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){
1062
1063 int i = start;
1064 int j = len-1;
1065
1066 if (len > 32) return 0;
1067
1068 uint32_t tmp = 0;
1069 for (; j >= 0; --j, ++i)
1070 tmp |= bits[i] << j;
1071
1072 return tmp;
1073 }
1074
1075 static command_t CommandTable[] =
1076 {
1077 {"help", CmdHelp, 1, "This help"},
1078 {"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},
1079 {"detect", CmdT55xxDetect, 0, "[1] Try detecting the tag modulation from reading the configuration block."},
1080 {"read", CmdT55xxReadBlock, 0, "<block> [password] -- Read T55xx block data (page 0) [optional password]"},
1081 {"write", CmdT55xxWriteBlock,0, "<block> <data> [password] -- Write T55xx block data (page 0) [optional password]"},
1082 {"trace", CmdT55xxReadTrace, 0, "[1] Show T55xx traceability data (page 1/ blk 0-1)"},
1083 {"info", CmdT55xxInfo, 0, "[1] Show T55xx configuration data (page 0/ blk 0)"},
1084 {"dump", CmdT55xxDump, 0, "[password] Dump T55xx card block 0-7. [optional password]"},
1085 {"special", special, 0, "Show block changes with 64 different offsets"},
1086 {NULL, NULL, 0, NULL}
1087 };
1088
1089 int CmdLFT55XX(const char *Cmd)
1090 {
1091 CmdsParse(CommandTable, Cmd);
1092 return 0;
1093 }
1094
1095 int CmdHelp(const char *Cmd)
1096 {
1097 CmdsHelp(CommandTable);
1098 return 0;
1099 }
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