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FIX: I did a clean up of the "LF PCF7931" code. The write command is not quite done.
[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|NRZ|BI|BIa> Set demodulation FSK / ASK / PSK / NRZ / 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') return usage_t55xx_read();
223
224 int res = sscanf(Cmd, "%d %x", &block, &password);
225
226 if ( res < 1 || res > 2 ) return usage_t55xx_read();
227
228 if ((block < 0) | (block > 7)) {
229 PrintAndLog("Block must be between 0 and 7");
230 return 1;
231 }
232
233 UsbCommand c = {CMD_T55XX_READ_BLOCK, {0, block, 0}};
234 c.d.asBytes[0] = 0x0;
235
236 //Password mode
237 if ( res == 2 ) {
238 c.arg[2] = password;
239 c.d.asBytes[0] = 0x1;
240 }
241
242 clearCommandBuffer();
243 SendCommand(&c);
244 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
245 PrintAndLog("command execution time out");
246 return 2;
247 }
248
249 uint8_t got[12000];
250 GetFromBigBuf(got,sizeof(got),0);
251 WaitForResponse(CMD_ACK,NULL);
252 setGraphBuf(got, 12000);
253 DemodBufferLen=0;
254 if (!DecodeT55xxBlock()) return 3;
255 char blk[10]={0};
256 sprintf(blk,"%d", block);
257 printT55xxBlock(blk);
258 return 0;
259 }
260
261 bool DecodeT55xxBlock(){
262
263 char buf[30] = {0x00};
264 char *cmdStr = buf;
265 int ans = 0;
266 uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};
267 DemodBufferLen = 0x00;
268
269 //trim 1/2 a clock from beginning
270 snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );
271 CmdLtrim(cmdStr);
272 switch( config.modulation ){
273 case DEMOD_FSK:
274 snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );
275 ans = FSKrawDemod(cmdStr, FALSE);
276 break;
277 case DEMOD_FSK1:
278 case DEMOD_FSK1a:
279 snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );
280 ans = FSKrawDemod(cmdStr, FALSE);
281 break;
282 case DEMOD_FSK2:
283 case DEMOD_FSK2a:
284 snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );
285 ans = FSKrawDemod(cmdStr, FALSE);
286 break;
287 case DEMOD_ASK:
288 snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );
289 ans = ASKDemod(cmdStr, FALSE, FALSE, 1);
290 break;
291 case DEMOD_PSK1:
292 snprintf(cmdStr, sizeof(buf),"%d %d 0", bitRate[config.bitrate], config.inverted );
293 ans = PSKDemod(cmdStr, FALSE);
294 break;
295 case DEMOD_PSK2: //inverted won't affect this
296 case DEMOD_PSK3: //not fully implemented
297 snprintf(cmdStr, sizeof(buf),"%d 0 1", bitRate[config.bitrate] );
298 ans = PSKDemod(cmdStr, FALSE);
299 psk1TOpsk2(DemodBuffer, DemodBufferLen);
300 break;
301 case DEMOD_NRZ:
302 snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
303 ans = NRZrawDemod(cmdStr, FALSE);
304 break;
305 case DEMOD_BI:
306 case DEMOD_BIa:
307 snprintf(cmdStr, sizeof(buf),"0 %d %d 0", bitRate[config.bitrate], config.inverted );
308 ans = ASKbiphaseDemod(cmdStr, FALSE);
309 break;
310 default:
311 return FALSE;
312 }
313 return (bool) ans;
314 }
315
316 int CmdT55xxDetect(const char *Cmd){
317
318 char cmdp = param_getchar(Cmd, 0);
319 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
320 return usage_t55xx_detect();
321
322 if (strlen(Cmd)==0)
323 AquireData( CONFIGURATION_BLOCK );
324
325 if ( !tryDetectModulation() )
326 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
327
328 return 0;
329 }
330
331 // detect configuration?
332 bool tryDetectModulation(){
333 char cmdStr[8] = {0};
334 uint8_t hits = 0;
335 t55xx_conf_block_t tests[15];
336 int bitRate=0;
337 uint8_t fc1 = 0, fc2 = 0, clk=0;
338 save_restoreGB(1);
339 if (GetFskClock("", FALSE, FALSE)){
340 fskClocks(&fc1, &fc2, &clk, FALSE);
341 sprintf(cmdStr,"%d", clk/2);
342 CmdLtrim(cmdStr);
343 if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)){
344 tests[hits].modulation = DEMOD_FSK;
345 if (fc1==8 && fc2 == 5)
346 tests[hits].modulation = DEMOD_FSK1a;
347 else if (fc1==10 && fc2 == 8)
348 tests[hits].modulation = DEMOD_FSK2;
349 tests[hits].bitrate = bitRate;
350 tests[hits].inverted = FALSE;
351 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
352 ++hits;
353 }
354 if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)) {
355 tests[hits].modulation = DEMOD_FSK;
356 if (fc1 == 8 && fc2 == 5)
357 tests[hits].modulation = DEMOD_FSK1;
358 else if (fc1 == 10 && fc2 == 8)
359 tests[hits].modulation = DEMOD_FSK2a;
360
361 tests[hits].bitrate = bitRate;
362 tests[hits].inverted = TRUE;
363 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
364 ++hits;
365 }
366 } else {
367 clk = GetAskClock("", FALSE, FALSE);
368
369 if (clk>0) {
370 sprintf(cmdStr,"%d", clk/2);
371 CmdLtrim(cmdStr);
372 if ( ASKDemod("0 0 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {
373 tests[hits].modulation = DEMOD_ASK;
374 tests[hits].bitrate = bitRate;
375 tests[hits].inverted = FALSE;
376 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
377 ++hits;
378 }
379 if ( ASKDemod("0 1 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {
380 tests[hits].modulation = DEMOD_ASK;
381 tests[hits].bitrate = bitRate;
382 tests[hits].inverted = TRUE;
383 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
384 ++hits;
385 }
386 if ( ASKbiphaseDemod("0 0 0 0", FALSE) && test(DEMOD_BI, &tests[hits].offset, &bitRate) ) {
387 tests[hits].modulation = DEMOD_BI;
388 tests[hits].bitrate = bitRate;
389 tests[hits].inverted = FALSE;
390 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
391 ++hits;
392 }
393 if ( ASKbiphaseDemod("0 0 1 0", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate) ) {
394 tests[hits].modulation = DEMOD_BIa;
395 tests[hits].bitrate = bitRate;
396 tests[hits].inverted = TRUE;
397 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
398 ++hits;
399 }
400 }
401 //undo trim from ask
402 save_restoreGB(0);
403 clk = GetNrzClock("", FALSE, FALSE);
404 if (clk>0) {
405 sprintf(cmdStr,"%d", clk/2);
406 CmdLtrim(cmdStr);
407 if ( NRZrawDemod("0 0 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {
408 tests[hits].modulation = DEMOD_NRZ;
409 tests[hits].bitrate = bitRate;
410 tests[hits].inverted = FALSE;
411 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
412 ++hits;
413 }
414
415 if ( NRZrawDemod("0 1 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {
416 tests[hits].modulation = DEMOD_NRZ;
417 tests[hits].bitrate = bitRate;
418 tests[hits].inverted = TRUE;
419 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
420 ++hits;
421 }
422 }
423
424 //undo trim from nrz
425 save_restoreGB(0);
426 clk = GetPskClock("", FALSE, FALSE);
427 if (clk>0) {
428 PrintAndLog("clk %d",clk);
429 sprintf(cmdStr,"%d", clk/2);
430 CmdLtrim(cmdStr);
431 if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {
432 tests[hits].modulation = DEMOD_PSK1;
433 tests[hits].bitrate = bitRate;
434 tests[hits].inverted = FALSE;
435 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
436 ++hits;
437 }
438 if ( PSKDemod("0 1 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {
439 tests[hits].modulation = DEMOD_PSK1;
440 tests[hits].bitrate = bitRate;
441 tests[hits].inverted = TRUE;
442 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
443 ++hits;
444 }
445 // PSK2 - needs a call to psk1TOpsk2.
446 if ( PSKDemod("0 0 1", FALSE)) {
447 psk1TOpsk2(DemodBuffer, DemodBufferLen);
448 if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate)){
449 tests[hits].modulation = DEMOD_PSK2;
450 tests[hits].bitrate = bitRate;
451 tests[hits].inverted = FALSE;
452 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
453 ++hits;
454 }
455 } // inverse waves does not affect this demod
456 // PSK3 - needs a call to psk1TOpsk2.
457 if ( PSKDemod("0 0 1", FALSE)) {
458 psk1TOpsk2(DemodBuffer, DemodBufferLen);
459 if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate)){
460 tests[hits].modulation = DEMOD_PSK3;
461 tests[hits].bitrate = bitRate;
462 tests[hits].inverted = FALSE;
463 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
464 ++hits;
465 }
466 } // inverse waves does not affect this demod
467 }
468 }
469 if ( hits == 1) {
470 config.modulation = tests[0].modulation;
471 config.bitrate = tests[0].bitrate;
472 config.inverted = tests[0].inverted;
473 config.offset = tests[0].offset;
474 config.block0 = tests[0].block0;
475 printConfiguration( config );
476 return TRUE;
477 }
478
479 if ( hits > 1) {
480 PrintAndLog("Found [%d] possible matches for modulation.",hits);
481 for(int i=0; i<hits; ++i){
482 PrintAndLog("--[%d]---------------", i+1);
483 printConfiguration( tests[i] );
484 }
485 }
486 return FALSE;
487 }
488
489 bool testModulation(uint8_t mode, uint8_t modread){
490 switch( mode ){
491 case DEMOD_FSK:
492 if (modread > 3 && modread < 8) return TRUE;
493 break;
494 case DEMOD_ASK:
495 if (modread == DEMOD_ASK) return TRUE;
496 break;
497 case DEMOD_PSK1:
498 if (modread == DEMOD_PSK1) return TRUE;
499 break;
500 case DEMOD_PSK2:
501 if (modread == DEMOD_PSK2) return TRUE;
502 break;
503 case DEMOD_PSK3:
504 if (modread == DEMOD_PSK3) return TRUE;
505 break;
506 case DEMOD_NRZ:
507 if (modread == DEMOD_NRZ) return TRUE;
508 break;
509 case DEMOD_BI:
510 if (modread == DEMOD_BI) return TRUE;
511 break;
512 case DEMOD_BIa:
513 if (modread == DEMOD_BIa) return TRUE;
514 break;
515 default:
516 return FALSE;
517 }
518 return FALSE;
519 }
520
521 bool testBitRate(uint8_t readRate, uint8_t mod){
522 uint8_t expected[8] = {8, 16, 32, 40, 50, 64, 100, 128};
523 uint8_t detRate = 0;
524 switch( mod ){
525 case DEMOD_FSK:
526 case DEMOD_FSK1:
527 case DEMOD_FSK1a:
528 case DEMOD_FSK2:
529 case DEMOD_FSK2a:
530 detRate = GetFskClock("",FALSE, FALSE);
531 if (expected[readRate] == detRate)
532 return TRUE;
533 break;
534 case DEMOD_ASK:
535 case DEMOD_BI:
536 case DEMOD_BIa:
537 detRate = GetAskClock("",FALSE, FALSE);
538 if (expected[readRate] == detRate)
539 return TRUE;
540 break;
541 case DEMOD_PSK1:
542 case DEMOD_PSK2:
543 case DEMOD_PSK3:
544 detRate = GetPskClock("",FALSE, FALSE);
545 if (expected[readRate] == detRate)
546 return TRUE;
547 break;
548 case DEMOD_NRZ:
549 detRate = GetNrzClock("",FALSE, FALSE);
550 if (expected[readRate] == detRate)
551 return TRUE;
552 break;
553 default:
554 return FALSE;
555 }
556 return FALSE;
557 }
558
559 bool test(uint8_t mode, uint8_t *offset, int *fndBitRate){
560
561 if ( DemodBufferLen < 64 ) return FALSE;
562 uint8_t si = 0;
563 for (uint8_t idx = 0; idx < 64; idx++){
564 si = idx;
565 if ( PackBits(si, 32, DemodBuffer) == 0x00 ) continue;
566
567 uint8_t safer = PackBits(si, 4, DemodBuffer); si += 4; //master key
568 uint8_t resv = PackBits(si, 4, DemodBuffer); si += 4; //was 7 & +=7+3 //should be only 4 bits if extended mode
569 // 2nibble must be zeroed.
570 // moved test to here, since this gets most faults first.
571 if ( resv > 0x00) continue;
572
573 uint8_t xtRate = PackBits(si, 3, DemodBuffer); si += 3; //extended mode part of rate
574 int bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate
575 if (bitRate > 7) continue;
576 uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode
577 uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1;
578 //uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr
579 uint8_t nml01 = PackBits(si, 1, DemodBuffer); si += 1+5; //bit 24, 30, 31 could be tested for 0 if not extended mode
580 uint8_t nml02 = PackBits(si, 2, DemodBuffer); si += 2;
581
582 //if extended mode
583 bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? TRUE : FALSE;
584
585 if (!extMode){
586 if (nml01 || nml02 || xtRate) continue;
587 }
588 //test modulation
589 if (!testModulation(mode, modread)) continue;
590 if (!testBitRate(bitRate, mode)) continue;
591 *fndBitRate = bitRate;
592 *offset = idx;
593 return TRUE;
594 }
595 return FALSE;
596 }
597
598 void printT55xxBlock(const char *blockNum){
599
600 uint8_t i = config.offset;
601 uint8_t endpos = 32 + i;
602 uint32_t blockData = 0;
603 uint8_t bits[64] = {0x00};
604
605 if ( !DemodBufferLen) return;
606
607 if ( endpos > DemodBufferLen){
608 PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i, DemodBufferLen-32);
609 return;
610 }
611
612 for (; i < endpos; ++i)
613 bits[i - config.offset]=DemodBuffer[i];
614
615 blockData = PackBits(0, 32, bits);
616 PrintAndLog("[%s] 0x%08X %s", blockNum, blockData, sprint_bin(bits,32));
617 }
618
619 int special(const char *Cmd) {
620 uint32_t blockData = 0;
621 uint8_t bits[32] = {0x00};
622
623 PrintAndLog("[OFFSET] [DATA] [BINARY]");
624 PrintAndLog("----------------------------------------------------");
625 int i,j = 0;
626 for (; j < 64; ++j){
627
628 for (i = 0; i < 32; ++i)
629 bits[i]=DemodBuffer[j+i];
630
631 blockData = PackBits(0, 32, bits);
632
633 PrintAndLog("[%02d] 0x%08X %s",j , blockData, sprint_bin(bits,32));
634 }
635 return 0;
636 }
637
638 void printConfiguration( t55xx_conf_block_t b){
639 PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) );
640 PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate) );
641 PrintAndLog("Inverted : %s", (b.inverted) ? "Yes" : "No" );
642 PrintAndLog("Offset : %d", b.offset);
643 PrintAndLog("Block0 : 0x%08X", b.block0);
644 PrintAndLog("");
645 }
646
647 int CmdT55xxWriteBlock(const char *Cmd)
648 {
649 int block = 8; //default to invalid block
650 int data = 0xFFFFFFFF; //default to blank Block
651 int password = 0xFFFFFFFF; //default to blank Block 7
652
653 char cmdp = param_getchar(Cmd, 0);
654 if (cmdp == 'h' || cmdp == 'H') {
655 usage_t55xx_write();
656 return 0;
657 }
658
659 int res = sscanf(Cmd, "%d %x %x",&block, &data, &password);
660
661 if ( res < 2 || res > 3) {
662 usage_t55xx_write();
663 return 1;
664 }
665
666 if (block > 7) {
667 PrintAndLog("Block number must be between 0 and 7");
668 return 2;
669 }
670
671 UsbCommand resp;
672 UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};
673 c.d.asBytes[0] = 0x0;
674
675 PrintAndLog("Writing to block: %d data : 0x%08X", block, data);
676
677 //Password mode
678 if (res == 3) {
679 c.arg[2] = password;
680 c.d.asBytes[0] = 0x1;
681 PrintAndLog("pwd : 0x%08X", password);
682 }
683 clearCommandBuffer();
684 SendCommand(&c);
685 if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
686 PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)");
687 return -1;
688 }
689 return 0;
690 }
691
692 int CmdT55xxReadTrace(const char *Cmd)
693 {
694 char cmdp = param_getchar(Cmd, 0);
695
696 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
697 return usage_t55xx_trace();
698
699 if (strlen(Cmd)==0)
700 AquireData( TRACE_BLOCK );
701
702 if (!DecodeT55xxBlock()) return 1;
703
704 if ( !DemodBufferLen) return 1;
705
706 RepaintGraphWindow();
707 uint8_t repeat = 0;
708 if (config.offset > 5)
709 repeat = 32;
710 uint8_t si = config.offset+repeat;
711 uint32_t bl0 = PackBits(si, 32, DemodBuffer);
712 uint32_t bl1 = PackBits(si+32, 32, DemodBuffer);
713
714 uint32_t acl = PackBits(si, 8, DemodBuffer); si += 8;
715 uint32_t mfc = PackBits(si, 8, DemodBuffer); si += 8;
716 uint32_t cid = PackBits(si, 5, DemodBuffer); si += 5;
717 uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;
718 uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;
719 uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;
720 uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;
721 uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;
722 uint32_t dw = PackBits(si, 15, DemodBuffer);
723
724 time_t t = time(NULL);
725 struct tm tm = *localtime(&t);
726 if ( year > tm.tm_year-110)
727 year += 2000;
728 else
729 year += 2010;
730
731 if ( acl != 0xE0 ) {
732 PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");
733 return 1;
734 }
735
736 PrintAndLog("");
737 PrintAndLog("-- T55xx Trace Information ----------------------------------");
738 PrintAndLog("-------------------------------------------------------------");
739 PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1) : 0x%02X (%d)", acl, acl);
740 PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6) : 0x%02X (%d) - %s", mfc, mfc, getTagInfo(mfc));
741 PrintAndLog(" CID : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));
742 PrintAndLog(" ICR IC Revision : %d",icr );
743 PrintAndLog(" Manufactured");
744 PrintAndLog(" Year/Quarter : %d/%d",year, quarter);
745 PrintAndLog(" Lot ID : %d", lotid );
746 PrintAndLog(" Wafer number : %d", wafer);
747 PrintAndLog(" Die Number : %d", dw);
748 PrintAndLog("-------------------------------------------------------------");
749 PrintAndLog(" Raw Data - Page 1");
750 PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(DemodBuffer+config.offset+repeat,32) );
751 PrintAndLog(" Block 1 : 0x%08X %s", bl1, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );
752 PrintAndLog("-------------------------------------------------------------");
753
754 /*
755 TRACE - BLOCK O
756 Bits Definition HEX
757 1-8 ACL Allocation class (ISO/IEC 15963-1) 0xE0
758 9-16 MFC Manufacturer ID (ISO/IEC 7816-6) 0x15 Atmel Corporation
759 17-21 CID 0x1 = Atmel ATA5577M1 0x2 = Atmel ATA5577M2
760 22-24 ICR IC revision
761 25-28 YEAR (BCD encoded) 9 (= 2009)
762 29-30 QUARTER 1,2,3,4
763 31-32 LOT ID
764
765 TRACE - BLOCK 1
766 1-12 LOT ID
767 13-17 Wafer number
768 18-32 DW, die number sequential
769 */
770
771 return 0;
772 }
773
774 int CmdT55xxInfo(const char *Cmd){
775 /*
776 Page 0 Block 0 Configuration data.
777 Normal mode
778 Extended mode
779 */
780 char cmdp = param_getchar(Cmd, 0);
781
782 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
783 return usage_t55xx_info();
784
785 if (strlen(Cmd)==0)
786 AquireData( CONFIGURATION_BLOCK );
787
788 if (!DecodeT55xxBlock()) return 1;
789
790 if ( DemodBufferLen < 32) return 1;
791
792 uint8_t si = config.offset;
793 uint32_t bl0 = PackBits(si, 32, DemodBuffer);
794
795 uint32_t safer = PackBits(si, 4, DemodBuffer); si += 4;
796 uint32_t resv = PackBits(si, 7, DemodBuffer); si += 7;
797 uint32_t dbr = PackBits(si, 3, DemodBuffer); si += 3;
798 uint32_t extend = PackBits(si, 1, DemodBuffer); si += 1;
799 uint32_t datamod = PackBits(si, 5, DemodBuffer); si += 5;
800 uint32_t pskcf = PackBits(si, 2, DemodBuffer); si += 2;
801 uint32_t aor = PackBits(si, 1, DemodBuffer); si += 1;
802 uint32_t otp = PackBits(si, 1, DemodBuffer); si += 1;
803 uint32_t maxblk = PackBits(si, 3, DemodBuffer); si += 3;
804 uint32_t pwd = PackBits(si, 1, DemodBuffer); si += 1;
805 uint32_t sst = PackBits(si, 1, DemodBuffer); si += 1;
806 uint32_t fw = PackBits(si, 1, DemodBuffer); si += 1;
807 uint32_t inv = PackBits(si, 1, DemodBuffer); si += 1;
808 uint32_t por = PackBits(si, 1, DemodBuffer); si += 1;
809
810 PrintAndLog("");
811 PrintAndLog("-- T55xx Configuration & Tag Information --------------------");
812 PrintAndLog("-------------------------------------------------------------");
813 PrintAndLog(" Safer key : %s", GetSaferStr(safer));
814 PrintAndLog(" reserved : %d", resv);
815 PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr));
816 PrintAndLog(" eXtended mode : %s", (extend) ? "Yes - Warning":"No");
817 PrintAndLog(" Modulation : %s", GetModulationStr(datamod));
818 PrintAndLog(" PSK clock frequency : %d", pskcf);
819 PrintAndLog(" AOR - Answer on Request : %s", (aor) ? "Yes":"No");
820 PrintAndLog(" OTP - One Time Pad : %s", (otp) ? "Yes - Warning":"No" );
821 PrintAndLog(" Max block : %d", maxblk);
822 PrintAndLog(" Password mode : %s", (pwd) ? "Yes":"No");
823 PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");
824 PrintAndLog(" Fast Write : %s", (fw) ? "Yes":"No");
825 PrintAndLog(" Inverse data : %s", (inv) ? "Yes":"No");
826 PrintAndLog(" POR-Delay : %s", (por) ? "Yes":"No");
827 PrintAndLog("-------------------------------------------------------------");
828 PrintAndLog(" Raw Data - Page 0");
829 PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(DemodBuffer+config.offset,32) );
830 PrintAndLog("-------------------------------------------------------------");
831
832 return 0;
833 }
834
835 int CmdT55xxDump(const char *Cmd){
836
837 char s[20] = {0x00};
838 uint8_t pwd[4] = {0x00};
839
840 char cmdp = param_getchar(Cmd, 0);
841 if ( cmdp == 'h' || cmdp == 'H') {
842 usage_t55xx_dump();
843 return 0;
844 }
845
846 bool hasPwd = ( strlen(Cmd) > 0);
847 if ( hasPwd ){
848 if (param_gethex(Cmd, 0, pwd, 8)) {
849 PrintAndLog("password must include 8 HEX symbols");
850 return 1;
851 }
852 }
853
854 for ( int i = 0; i <8; ++i){
855 memset(s,0,sizeof(s));
856 if ( hasPwd ) {
857 sprintf(s,"%d %02x%02x%02x%02x", i, pwd[0],pwd[1],pwd[2],pwd[3]);
858 } else {
859 sprintf(s,"%d", i);
860 }
861 CmdT55xxReadBlock(s);
862 }
863 return 0;
864 }
865
866 int AquireData( uint8_t block ){
867
868 UsbCommand c;
869
870 if ( block == CONFIGURATION_BLOCK )
871 c.cmd = CMD_T55XX_READ_BLOCK;
872 else if (block == TRACE_BLOCK )
873 c.cmd = CMD_T55XX_READ_TRACE;
874
875 c.arg[0] = 0x00;
876 c.arg[1] = 0x00;
877 c.arg[2] = 0x00;
878 c.d.asBytes[0] = 0x0;
879
880 //Password mode
881 // if ( res == 2 ) {
882 // c.arg[2] = password;
883 // c.d.asBytes[0] = 0x1;
884 // }
885
886 clearCommandBuffer();
887 SendCommand(&c);
888 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
889 PrintAndLog("command execution time out");
890 return 1;
891 }
892
893 uint8_t got[12000];
894 GetFromBigBuf(got,sizeof(got),0);
895 WaitForResponse(CMD_ACK,NULL);
896 setGraphBuf(got, 12000);
897 return 0;
898 }
899
900 char * GetBitRateStr(uint32_t id){
901 static char buf[25];
902
903 char *retStr = buf;
904 switch (id){
905 case 0:
906 snprintf(retStr,sizeof(buf),"%d - RF/8",id);
907 break;
908 case 1:
909 snprintf(retStr,sizeof(buf),"%d - RF/16",id);
910 break;
911 case 2:
912 snprintf(retStr,sizeof(buf),"%d - RF/32",id);
913 break;
914 case 3:
915 snprintf(retStr,sizeof(buf),"%d - RF/40",id);
916 break;
917 case 4:
918 snprintf(retStr,sizeof(buf),"%d - RF/50",id);
919 break;
920 case 5:
921 snprintf(retStr,sizeof(buf),"%d - RF/64",id);
922 break;
923 case 6:
924 snprintf(retStr,sizeof(buf),"%d - RF/100",id);
925 break;
926 case 7:
927 snprintf(retStr,sizeof(buf),"%d - RF/128",id);
928 break;
929 default:
930 snprintf(retStr,sizeof(buf),"%d - (Unknown)",id);
931 break;
932 }
933
934 return buf;
935 }
936
937 char * GetSaferStr(uint32_t id){
938 static char buf[40];
939 char *retStr = buf;
940
941 snprintf(retStr,sizeof(buf),"%d",id);
942 if (id == 6) {
943 snprintf(retStr,sizeof(buf),"%d - passwd",id);
944 }
945 if (id == 9 ){
946 snprintf(retStr,sizeof(buf),"%d - testmode",id);
947 }
948
949 return buf;
950 }
951
952 char * GetModulationStr( uint32_t id){
953 static char buf[60];
954 char *retStr = buf;
955
956 switch (id){
957 case 0:
958 snprintf(retStr,sizeof(buf),"%d - DIRECT (ASK/NRZ)",id);
959 break;
960 case 1:
961 snprintf(retStr,sizeof(buf),"%d - PSK 1 phase change when input changes",id);
962 break;
963 case 2:
964 snprintf(retStr,sizeof(buf),"%d - PSK 2 phase change on bitclk if input high",id);
965 break;
966 case 3:
967 snprintf(retStr,sizeof(buf),"%d - PSK 3 phase change on rising edge of input",id);
968 break;
969 case 4:
970 snprintf(retStr,sizeof(buf),"%d - FSK 1 RF/8 RF/5",id);
971 break;
972 case 5:
973 snprintf(retStr,sizeof(buf),"%d - FSK 2 RF/8 RF/10",id);
974 break;
975 case 6:
976 snprintf(retStr,sizeof(buf),"%d - FSK 1a RF/5 RF/8",id);
977 break;
978 case 7:
979 snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10 RF/8",id);
980 break;
981 case 8:
982 snprintf(retStr,sizeof(buf),"%d - Manchester",id);
983 break;
984 case 16:
985 snprintf(retStr,sizeof(buf),"%d - Biphase",id);
986 break;
987 case 0x18:
988 snprintf(retStr,sizeof(buf),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id);
989 break;
990 case 17:
991 snprintf(retStr,sizeof(buf),"%d - Reserved",id);
992 break;
993 default:
994 snprintf(retStr,sizeof(buf),"0x%02X (Unknown)",id);
995 break;
996 }
997 return buf;
998 }
999
1000 char * GetModelStrFromCID(uint32_t cid){
1001
1002 static char buf[10];
1003 char *retStr = buf;
1004
1005 if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");
1006 if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2");
1007 return buf;
1008 }
1009
1010 char * GetSelectedModulationStr( uint8_t id){
1011
1012 static char buf[20];
1013 char *retStr = buf;
1014
1015 switch (id){
1016 case DEMOD_FSK:
1017 snprintf(retStr,sizeof(buf),"FSK");
1018 break;
1019 case DEMOD_FSK1:
1020 snprintf(retStr,sizeof(buf),"FSK1");
1021 break;
1022 case DEMOD_FSK1a:
1023 snprintf(retStr,sizeof(buf),"FSK1a");
1024 break;
1025 case DEMOD_FSK2:
1026 snprintf(retStr,sizeof(buf),"FSK2");
1027 break;
1028 case DEMOD_FSK2a:
1029 snprintf(retStr,sizeof(buf),"FSK2a");
1030 break;
1031 case DEMOD_ASK:
1032 snprintf(retStr,sizeof(buf),"ASK");
1033 break;
1034 case DEMOD_NRZ:
1035 snprintf(retStr,sizeof(buf),"DIRECT/NRZ");
1036 break;
1037 case DEMOD_PSK1:
1038 snprintf(retStr,sizeof(buf),"PSK1");
1039 break;
1040 case DEMOD_PSK2:
1041 snprintf(retStr,sizeof(buf),"PSK2");
1042 break;
1043 case DEMOD_PSK3:
1044 snprintf(retStr,sizeof(buf),"PSK3");
1045 break;
1046 case DEMOD_BI:
1047 snprintf(retStr,sizeof(buf),"BIPHASE");
1048 break;
1049 case DEMOD_BIa:
1050 snprintf(retStr,sizeof(buf),"BIPHASEa - (CDP)");
1051 break;
1052 default:
1053 snprintf(retStr,sizeof(buf),"(Unknown)");
1054 break;
1055 }
1056 return buf;
1057 }
1058
1059 void t55x7_create_config_block( int tagtype ){
1060 //switch?
1061
1062
1063 }
1064
1065 /*
1066 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){
1067
1068 int i = start;
1069 int j = len-1;
1070
1071 if (len > 32) return 0;
1072
1073 uint32_t tmp = 0;
1074 for (; j >= 0; --j, ++i)
1075 tmp |= bits[i] << j;
1076
1077 return tmp;
1078 }
1079 */
1080 static command_t CommandTable[] =
1081 {
1082 {"help", CmdHelp, 1, "This help"},
1083 {"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},
1084 {"detect", CmdT55xxDetect, 0, "[1] Try detecting the tag modulation from reading the configuration block."},
1085 {"read", CmdT55xxReadBlock, 0, "<block> [password] -- Read T55xx block data (page 0) [optional password]"},
1086 {"write", CmdT55xxWriteBlock,0, "<block> <data> [password] -- Write T55xx block data (page 0) [optional password]"},
1087 {"trace", CmdT55xxReadTrace, 0, "[1] Show T55xx traceability data (page 1/ blk 0-1)"},
1088 {"info", CmdT55xxInfo, 0, "[1] Show T55xx configuration data (page 0/ blk 0)"},
1089 {"dump", CmdT55xxDump, 0, "[password] Dump T55xx card block 0-7. [optional password]"},
1090 {"special", special, 0, "Show block changes with 64 different offsets"},
1091 {NULL, NULL, 0, NULL}
1092 };
1093
1094 int CmdLFT55XX(const char *Cmd)
1095 {
1096 CmdsParse(CommandTable, Cmd);
1097 return 0;
1098 }
1099
1100 int CmdHelp(const char *Cmd)
1101 {
1102 CmdsHelp(CommandTable);
1103 return 0;
1104 }
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