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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 T55x7_CONFIGURATION_BLOCK 0x00
30 #define T55x7_PAGE0 0x00
31 #define T55x7_PAGE1 0x01
32 #define T55x7_PWD 0x00000010
33 #define REGULAR_READ_MODE_BLOCK 0xFF
34
35 // Default configuration
36 t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = FALSE, .offset = 0x00, .block0 = 0x00, .Q5 = FALSE };
37
38 t55xx_conf_block_t Get_t55xx_Config(){
39 return config;
40 }
41 void Set_t55xx_Config(t55xx_conf_block_t conf){
42 config = conf;
43 }
44
45 int usage_t55xx_config(){
46 PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>] [Q5]");
47 PrintAndLog("Options:");
48 PrintAndLog(" h This help");
49 PrintAndLog(" b <8|16|32|40|50|64|100|128> Set bitrate");
50 PrintAndLog(" d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NRZ|BI|BIa> Set demodulation FSK / ASK / PSK / NRZ / Biphase / Biphase A");
51 PrintAndLog(" i [1] Invert data signal, defaults to normal");
52 PrintAndLog(" o [offset] Set offset, where data should start decode in bitstream");
53 PrintAndLog(" Q5 Set as Q5(T5555) chip instead of T55x7");
54 PrintAndLog("");
55 PrintAndLog("Examples:");
56 PrintAndLog(" lf t55xx config d FSK - FSK demodulation");
57 PrintAndLog(" lf t55xx config d FSK i 1 - FSK demodulation, inverse data");
58 PrintAndLog(" lf t55xx config d FSK i 1 o 3 - FSK demodulation, inverse data, offset=3,start from position 3 to decode data");
59 PrintAndLog("");
60 return 0;
61 }
62 int usage_t55xx_read(){
63 PrintAndLog("Usage: lf t55xx read [b <block>] [p <password>] <override_safety> <page1>");
64 PrintAndLog("Options:");
65 PrintAndLog(" b <block> - block number to read. Between 0-7");
66 PrintAndLog(" p <password> - OPTIONAL password (8 hex characters)");
67 PrintAndLog(" o - OPTIONAL override safety check");
68 PrintAndLog(" 1 - OPTIONAL read Page 1 instead of Page 0");
69 PrintAndLog(" ****WARNING****");
70 PrintAndLog(" Use of read with password on a tag not configured for a pwd");
71 PrintAndLog(" can damage the tag");
72 PrintAndLog("");
73 PrintAndLog("Examples:");
74 PrintAndLog(" lf t55xx read b 0 - read data from block 0");
75 PrintAndLog(" lf t55xx read b 0 p feedbeef - read data from block 0 password feedbeef");
76 PrintAndLog(" lf t55xx read b 0 p feedbeef o - read data from block 0 password feedbeef safety check");
77 PrintAndLog("");
78 return 0;
79 }
80 int usage_t55xx_write(){
81 PrintAndLog("Usage: lf t55xx wr [b <block>] [d <data>] [p <password>] [1]");
82 PrintAndLog("Options:");
83 PrintAndLog(" b <block> - block number to write. Between 0-7");
84 PrintAndLog(" d <data> - 4 bytes of data to write (8 hex characters)");
85 PrintAndLog(" p <password> - OPTIONAL password 4bytes (8 hex characters)");
86 PrintAndLog(" 1 - OPTIONAL write Page 1 instead of Page 0");
87 PrintAndLog("");
88 PrintAndLog("Examples:");
89 PrintAndLog(" lf t55xx wr b 3 d 11223344 - write 11223344 to block 3");
90 PrintAndLog(" lf t55xx wr b 3 d 11223344 p feedbeef - write 11223344 to block 3 password feedbeef");
91 PrintAndLog("");
92 return 0;
93 }
94 int usage_t55xx_trace() {
95 PrintAndLog("Usage: lf t55xx trace [1]");
96 PrintAndLog("Options:");
97 PrintAndLog(" [graph buffer data] - if set, use Graphbuffer otherwise read data from tag.");
98 PrintAndLog("");
99 PrintAndLog("Examples:");
100 PrintAndLog(" lf t55xx trace");
101 PrintAndLog(" lf t55xx trace 1");
102 PrintAndLog("");
103 return 0;
104 }
105 int usage_t55xx_info() {
106 PrintAndLog("Usage: lf t55xx info [1]");
107 PrintAndLog("Options:");
108 PrintAndLog(" [graph buffer data] - if set, use Graphbuffer otherwise read data from tag.");
109 PrintAndLog("");
110 PrintAndLog("Examples:");
111 PrintAndLog(" lf t55xx info");
112 PrintAndLog(" lf t55xx info 1");
113 PrintAndLog("");
114 return 0;
115 }
116 int usage_t55xx_dump(){
117 PrintAndLog("Usage: lf t55xx dump <password> [o]");
118 PrintAndLog("Options:");
119 PrintAndLog(" <password> - OPTIONAL password 4bytes (8 hex symbols)");
120 PrintAndLog(" o - OPTIONAL override, force pwd read despite danger to card");
121 PrintAndLog("");
122 PrintAndLog("Examples:");
123 PrintAndLog(" lf t55xx dump");
124 PrintAndLog(" lf t55xx dump feedbeef o");
125 PrintAndLog("");
126 return 0;
127 }
128 int usage_t55xx_detect(){
129 PrintAndLog("Usage: lf t55xx detect [1] [p <password>]");
130 PrintAndLog("Options:");
131 PrintAndLog(" 1 - if set, use Graphbuffer otherwise read data from tag.");
132 PrintAndLog(" p <password> - OPTIONAL password (8 hex characters)");
133 PrintAndLog("");
134 PrintAndLog("Examples:");
135 PrintAndLog(" lf t55xx detect");
136 PrintAndLog(" lf t55xx detect 1");
137 PrintAndLog(" lf t55xx detect p 11223344");
138 PrintAndLog("");
139 return 0;
140 }
141 int usage_t55xx_wakup(){
142 PrintAndLog("Usage: lf t55xx wakeup [h] p <password>");
143 PrintAndLog("This commands send the Answer-On-Request command and leaves the readerfield ON afterwards.");
144 PrintAndLog("Options:");
145 PrintAndLog(" h - this help");
146 PrintAndLog(" p <password> - password 4bytes (8 hex symbols)");
147 PrintAndLog("");
148 PrintAndLog("Examples:");
149 PrintAndLog(" lf t55xx wakeup p 11223344 - send wakeup password");
150 return 0;
151 }
152 int usage_t55xx_bruteforce(){
153 PrintAndLog("This command uses A) bruteforce to scan a number range");
154 PrintAndLog(" B) a dictionary attack");
155 PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password> [i <*.dic>]");
156 PrintAndLog(" password must be 4 bytes (8 hex symbols)");
157 PrintAndLog("Options:");
158 PrintAndLog(" h - this help");
159 PrintAndLog(" <start_pwd> - 4 byte hex value to start pwd search at");
160 PrintAndLog(" <end_pwd> - 4 byte hex value to end pwd search at");
161 PrintAndLog(" i <*.dic> - loads a default keys dictionary file <*.dic>");
162 PrintAndLog("");
163 PrintAndLog("Examples:");
164 PrintAndLog(" lf t55xx bruteforce aaaaaaaa bbbbbbbb");
165 PrintAndLog(" lf t55xx bruteforce i default_pwd.dic");
166 PrintAndLog("");
167 return 0;
168 }
169
170 static int CmdHelp(const char *Cmd);
171
172 void printT5xxHeader(uint8_t page){
173 PrintAndLog("Reading Page %d:", page);
174 PrintAndLog("blk | hex data | binary");
175 PrintAndLog("----+----------+---------------------------------");
176 }
177
178 int CmdT55xxSetConfig(const char *Cmd) {
179
180 uint8_t offset = 0;
181 char modulation[5] = {0x00};
182 char tmp = 0x00;
183 uint8_t bitRate = 0;
184 uint8_t rates[9] = {8,16,32,40,50,64,100,128,0};
185 uint8_t cmdp = 0;
186 config.Q5 = FALSE;
187 bool errors = FALSE;
188 while(param_getchar(Cmd, cmdp) != 0x00 && !errors)
189 {
190 tmp = param_getchar(Cmd, cmdp);
191 switch(tmp)
192 {
193 case 'h':
194 case 'H':
195 return usage_t55xx_config();
196 case 'b':
197 errors |= param_getdec(Cmd, cmdp+1, &bitRate);
198 if ( !errors){
199 uint8_t i = 0;
200 for (; i < 9; i++){
201 if (rates[i]==bitRate) {
202 config.bitrate = i;
203 break;
204 }
205 }
206 if (i==9) errors = TRUE;
207 }
208 cmdp+=2;
209 break;
210 case 'd':
211 param_getstr(Cmd, cmdp+1, modulation);
212 cmdp += 2;
213
214 if ( strcmp(modulation, "FSK" ) == 0) {
215 config.modulation = DEMOD_FSK;
216 } else if ( strcmp(modulation, "FSK1" ) == 0) {
217 config.modulation = DEMOD_FSK1;
218 config.inverted=1;
219 } else if ( strcmp(modulation, "FSK1a" ) == 0) {
220 config.modulation = DEMOD_FSK1a;
221 config.inverted=0;
222 } else if ( strcmp(modulation, "FSK2" ) == 0) {
223 config.modulation = DEMOD_FSK2;
224 config.inverted=0;
225 } else if ( strcmp(modulation, "FSK2a" ) == 0) {
226 config.modulation = DEMOD_FSK2a;
227 config.inverted=1;
228 } else if ( strcmp(modulation, "ASK" ) == 0) {
229 config.modulation = DEMOD_ASK;
230 } else if ( strcmp(modulation, "NRZ" ) == 0) {
231 config.modulation = DEMOD_NRZ;
232 } else if ( strcmp(modulation, "PSK1" ) == 0) {
233 config.modulation = DEMOD_PSK1;
234 } else if ( strcmp(modulation, "PSK2" ) == 0) {
235 config.modulation = DEMOD_PSK2;
236 } else if ( strcmp(modulation, "PSK3" ) == 0) {
237 config.modulation = DEMOD_PSK3;
238 } else if ( strcmp(modulation, "BIa" ) == 0) {
239 config.modulation = DEMOD_BIa;
240 config.inverted=1;
241 } else if ( strcmp(modulation, "BI" ) == 0) {
242 config.modulation = DEMOD_BI;
243 config.inverted=0;
244 } else {
245 PrintAndLog("Unknown modulation '%s'", modulation);
246 errors = TRUE;
247 }
248 break;
249 case 'i':
250 config.inverted = param_getchar(Cmd,cmdp+1) == '1';
251 cmdp+=2;
252 break;
253 case 'o':
254 errors |= param_getdec(Cmd, cmdp+1, &offset);
255 if ( !errors )
256 config.offset = offset;
257 cmdp+=2;
258 break;
259 case 'Q':
260 case 'q':
261 config.Q5 = TRUE;
262 cmdp++;
263 break;
264 default:
265 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
266 errors = TRUE;
267 break;
268 }
269 }
270
271 // No args
272 if (cmdp == 0) return printConfiguration( config );
273
274 //Validations
275 if (errors) return usage_t55xx_config();
276
277 config.block0 = 0;
278 return printConfiguration ( config );
279 }
280
281 int T55xxReadBlock(uint8_t block, bool page1, bool usepwd, bool override, uint32_t password){
282 //Password mode
283 if ( usepwd ) {
284 // try reading the config block and verify that PWD bit is set before doing this!
285 if ( !override ) {
286 if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, false, 0 ) ) return 0;
287 if ( !tryDetectModulation() ) {
288 PrintAndLog("Safety Check: Could not detect if PWD bit is set in config block. Exits.");
289 return 0;
290 } else {
291 PrintAndLog("Safety Check: PWD bit is NOT set in config block. Reading without password...");
292 usepwd = false;
293 page1 = false;
294 }
295 } else {
296 PrintAndLog("Safety Check Overriden - proceeding despite risk");
297 }
298 }
299
300 if (!AquireData(page1, block, usepwd, password) ) return 0;
301 if (!DecodeT55xxBlock()) return 0;
302
303 char blk[10]={0};
304 sprintf(blk,"%d", block);
305 printT55xxBlock(blk);
306 return 1;
307 }
308
309 int CmdT55xxReadBlock(const char *Cmd) {
310 uint8_t block = REGULAR_READ_MODE_BLOCK;
311 uint32_t password = 0; //default to blank Block 7
312 bool usepwd = false;
313 bool override = false;
314 bool page1 = false;
315 bool errors = false;
316 uint8_t cmdp = 0;
317 while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
318 switch(param_getchar(Cmd, cmdp)) {
319 case 'h':
320 case 'H':
321 return usage_t55xx_read();
322 case 'b':
323 case 'B':
324 errors |= param_getdec(Cmd, cmdp+1, &block);
325 cmdp += 2;
326 break;
327 case 'o':
328 case 'O':
329 override = true;
330 cmdp++;
331 break;
332 case 'p':
333 case 'P':
334 password = param_get32ex(Cmd, cmdp+1, 0, 16);
335 usepwd = true;
336 cmdp += 2;
337 break;
338 case '1':
339 page1 = true;
340 cmdp++;
341 break;
342 default:
343 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
344 errors = true;
345 break;
346 }
347 }
348 if (errors) return usage_t55xx_read();
349
350 if (block > 7 && block != REGULAR_READ_MODE_BLOCK ) {
351 PrintAndLog("Block must be between 0 and 7");
352 return 0;
353 }
354
355 printT5xxHeader(page1);
356 return T55xxReadBlock(block, page1, usepwd, override, password);
357 }
358
359 bool DecodeT55xxBlock(){
360
361 char buf[30] = {0x00};
362 char *cmdStr = buf;
363 int ans = 0;
364 uint8_t bitRate[8] = {8,16,32,40,50,64,100,128};
365 DemodBufferLen = 0x00;
366
367 switch( config.modulation ){
368 case DEMOD_FSK:
369 snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );
370 ans = FSKrawDemod(cmdStr, FALSE);
371 break;
372 case DEMOD_FSK1:
373 case DEMOD_FSK1a:
374 snprintf(cmdStr, sizeof(buf),"%d %d 8 5", bitRate[config.bitrate], config.inverted );
375 ans = FSKrawDemod(cmdStr, FALSE);
376 break;
377 case DEMOD_FSK2:
378 case DEMOD_FSK2a:
379 snprintf(cmdStr, sizeof(buf),"%d %d 10 8", bitRate[config.bitrate], config.inverted );
380 ans = FSKrawDemod(cmdStr, FALSE);
381 break;
382 case DEMOD_ASK:
383 snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
384 ans = ASKDemod(cmdStr, FALSE, FALSE, 1);
385 break;
386 case DEMOD_PSK1:
387 // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
388 CmdLtrim("160");
389 snprintf(cmdStr, sizeof(buf),"%d %d 6", bitRate[config.bitrate], config.inverted );
390 ans = PSKDemod(cmdStr, FALSE);
391 break;
392 case DEMOD_PSK2: //inverted won't affect this
393 case DEMOD_PSK3: //not fully implemented
394 // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
395 CmdLtrim("160");
396 snprintf(cmdStr, sizeof(buf),"%d 0 6", bitRate[config.bitrate] );
397 ans = PSKDemod(cmdStr, FALSE);
398 psk1TOpsk2(DemodBuffer, DemodBufferLen);
399 break;
400 case DEMOD_NRZ:
401 snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
402 ans = NRZrawDemod(cmdStr, FALSE);
403 break;
404 case DEMOD_BI:
405 case DEMOD_BIa:
406 snprintf(cmdStr, sizeof(buf),"0 %d %d 1", bitRate[config.bitrate], config.inverted );
407 ans = ASKbiphaseDemod(cmdStr, FALSE);
408 break;
409 default:
410 return FALSE;
411 }
412 return (bool) ans;
413 }
414
415 int CmdT55xxDetect(const char *Cmd){
416 bool errors = FALSE;
417 bool useGB = FALSE;
418 bool usepwd = FALSE;
419 uint32_t password = 0;
420 uint8_t cmdp = 0;
421
422 while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
423 switch(param_getchar(Cmd, cmdp)) {
424 case 'h':
425 case 'H':
426 return usage_t55xx_detect();
427 case 'p':
428 case 'P':
429 password = param_get32ex(Cmd, cmdp+1, 0, 16);
430 usepwd = TRUE;
431 cmdp += 2;
432 break;
433 case '1':
434 // use Graphbuffer data
435 useGB = TRUE;
436 cmdp++;
437 break;
438 default:
439 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
440 errors = true;
441 break;
442 }
443 }
444 if (errors) return usage_t55xx_detect();
445
446 if ( !useGB) {
447 if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, usepwd, password) )
448 return 0;
449 }
450
451 if ( !tryDetectModulation() )
452 PrintAndLog("Could not detect modulation automatically. Try setting it manually with \'lf t55xx config\'");
453
454 return 1;
455 }
456
457 // detect configuration?
458 bool tryDetectModulation(){
459 uint8_t hits = 0;
460 t55xx_conf_block_t tests[15];
461 int bitRate=0;
462 uint8_t fc1 = 0, fc2 = 0, clk=0;
463
464 if (GetFskClock("", FALSE, FALSE)){
465 fskClocks(&fc1, &fc2, &clk, FALSE);
466 if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)){
467 tests[hits].modulation = DEMOD_FSK;
468 if (fc1==8 && fc2 == 5)
469 tests[hits].modulation = DEMOD_FSK1a;
470 else if (fc1==10 && fc2 == 8)
471 tests[hits].modulation = DEMOD_FSK2;
472 tests[hits].bitrate = bitRate;
473 tests[hits].inverted = FALSE;
474 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
475 ++hits;
476 }
477 if ( FSKrawDemod("0 1", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
478 tests[hits].modulation = DEMOD_FSK;
479 if (fc1 == 8 && fc2 == 5)
480 tests[hits].modulation = DEMOD_FSK1;
481 else if (fc1 == 10 && fc2 == 8)
482 tests[hits].modulation = DEMOD_FSK2a;
483
484 tests[hits].bitrate = bitRate;
485 tests[hits].inverted = TRUE;
486 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
487 ++hits;
488 }
489 } else {
490 clk = GetAskClock("", FALSE, FALSE);
491 if (clk>0) {
492 if ( ASKDemod("0 0 1", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
493 tests[hits].modulation = DEMOD_ASK;
494 tests[hits].bitrate = bitRate;
495 tests[hits].inverted = FALSE;
496 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
497 ++hits;
498 }
499 if ( ASKDemod("0 1 1", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
500 tests[hits].modulation = DEMOD_ASK;
501 tests[hits].bitrate = bitRate;
502 tests[hits].inverted = TRUE;
503 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
504 ++hits;
505 }
506 if ( ASKbiphaseDemod("0 0 0 2", FALSE) && test(DEMOD_BI, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5) ) {
507 tests[hits].modulation = DEMOD_BI;
508 tests[hits].bitrate = bitRate;
509 tests[hits].inverted = FALSE;
510 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
511 ++hits;
512 }
513 if ( ASKbiphaseDemod("0 0 1 2", FALSE) && test(DEMOD_BIa, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5) ) {
514 tests[hits].modulation = DEMOD_BIa;
515 tests[hits].bitrate = bitRate;
516 tests[hits].inverted = TRUE;
517 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
518 ++hits;
519 }
520 }
521 //undo trim from ask
522 //save_restoreGB(0);
523 clk = GetNrzClock("", FALSE, FALSE);
524 if (clk>0) {
525 if ( NRZrawDemod("0 0 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
526 tests[hits].modulation = DEMOD_NRZ;
527 tests[hits].bitrate = bitRate;
528 tests[hits].inverted = FALSE;
529 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
530 ++hits;
531 }
532
533 if ( NRZrawDemod("0 1 1", FALSE) && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
534 tests[hits].modulation = DEMOD_NRZ;
535 tests[hits].bitrate = bitRate;
536 tests[hits].inverted = TRUE;
537 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
538 ++hits;
539 }
540 }
541
542 // allow undo
543 // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
544 save_restoreGB(1);
545 CmdLtrim("160");
546 clk = GetPskClock("", FALSE, FALSE);
547 if (clk>0) {
548 if ( PSKDemod("0 0 6", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
549 tests[hits].modulation = DEMOD_PSK1;
550 tests[hits].bitrate = bitRate;
551 tests[hits].inverted = FALSE;
552 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
553 ++hits;
554 }
555 if ( PSKDemod("0 1 6", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {
556 tests[hits].modulation = DEMOD_PSK1;
557 tests[hits].bitrate = bitRate;
558 tests[hits].inverted = TRUE;
559 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
560 ++hits;
561 }
562 // PSK2 - needs a call to psk1TOpsk2.
563 if ( PSKDemod("0 0 6", FALSE)) {
564 psk1TOpsk2(DemodBuffer, DemodBufferLen);
565 if (test(DEMOD_PSK2, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)){
566 tests[hits].modulation = DEMOD_PSK2;
567 tests[hits].bitrate = bitRate;
568 tests[hits].inverted = FALSE;
569 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
570 ++hits;
571 }
572 } // inverse waves does not affect this demod
573 // PSK3 - needs a call to psk1TOpsk2.
574 if ( PSKDemod("0 0 6", FALSE)) {
575 psk1TOpsk2(DemodBuffer, DemodBufferLen);
576 if (test(DEMOD_PSK3, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)){
577 tests[hits].modulation = DEMOD_PSK3;
578 tests[hits].bitrate = bitRate;
579 tests[hits].inverted = FALSE;
580 tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);
581 ++hits;
582 }
583 } // inverse waves does not affect this demod
584 }
585 //undo trim samples
586 save_restoreGB(0);
587 }
588 if ( hits == 1) {
589 config.modulation = tests[0].modulation;
590 config.bitrate = tests[0].bitrate;
591 config.inverted = tests[0].inverted;
592 config.offset = tests[0].offset;
593 config.block0 = tests[0].block0;
594 printConfiguration( config );
595 return TRUE;
596 }
597
598 if ( hits > 1) {
599 PrintAndLog("Found [%d] possible matches for modulation.",hits);
600 for(int i=0; i<hits; ++i){
601 PrintAndLog("--[%d]---------------", i+1);
602 printConfiguration( tests[i] );
603 }
604 }
605 return FALSE;
606 }
607
608 bool testModulation(uint8_t mode, uint8_t modread){
609 switch( mode ){
610 case DEMOD_FSK:
611 if (modread >= DEMOD_FSK1 && modread <= DEMOD_FSK2a) return TRUE;
612 break;
613 case DEMOD_ASK:
614 if (modread == DEMOD_ASK) return TRUE;
615 break;
616 case DEMOD_PSK1:
617 if (modread == DEMOD_PSK1) return TRUE;
618 break;
619 case DEMOD_PSK2:
620 if (modread == DEMOD_PSK2) return TRUE;
621 break;
622 case DEMOD_PSK3:
623 if (modread == DEMOD_PSK3) return TRUE;
624 break;
625 case DEMOD_NRZ:
626 if (modread == DEMOD_NRZ) return TRUE;
627 break;
628 case DEMOD_BI:
629 if (modread == DEMOD_BI) return TRUE;
630 break;
631 case DEMOD_BIa:
632 if (modread == DEMOD_BIa) return TRUE;
633 break;
634 default:
635 return FALSE;
636 }
637 return FALSE;
638 }
639
640 bool testQ5Modulation(uint8_t mode, uint8_t modread){
641 switch( mode ){
642 case DEMOD_FSK:
643 if (modread >= 4 && modread <= 5) return TRUE;
644 break;
645 case DEMOD_ASK:
646 if (modread == 0) return TRUE;
647 break;
648 case DEMOD_PSK1:
649 if (modread == 1) return TRUE;
650 break;
651 case DEMOD_PSK2:
652 if (modread == 2) return TRUE;
653 break;
654 case DEMOD_PSK3:
655 if (modread == 3) return TRUE;
656 break;
657 case DEMOD_NRZ:
658 if (modread == 7) return TRUE;
659 break;
660 case DEMOD_BI:
661 if (modread == 6) return TRUE;
662 break;
663 default:
664 return FALSE;
665 }
666 return FALSE;
667 }
668
669 bool testQ5(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk){
670
671 if ( DemodBufferLen < 64 ) return FALSE;
672 uint8_t si = 0;
673 for (uint8_t idx = 28; idx < 64; idx++){
674 si = idx;
675 if ( PackBits(si, 28, DemodBuffer) == 0x00 ) continue;
676
677 uint8_t safer = PackBits(si, 4, DemodBuffer); si += 4; //master key
678 uint8_t resv = PackBits(si, 8, DemodBuffer); si += 8;
679 // 2nibble must be zeroed.
680 if (safer != 0x6) continue;
681 if ( resv > 0x00) continue;
682 //uint8_t pageSel = PackBits(si, 1, DemodBuffer); si += 1;
683 //uint8_t fastWrite = PackBits(si, 1, DemodBuffer); si += 1;
684 si += 1+1;
685 int bitRate = PackBits(si, 5, DemodBuffer)*2 + 2; si += 5; //bit rate
686 if (bitRate > 128 || bitRate < 8) continue;
687
688 //uint8_t AOR = PackBits(si, 1, DemodBuffer); si += 1;
689 //uint8_t PWD = PackBits(si, 1, DemodBuffer); si += 1;
690 //uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2; //could check psk cr
691 //uint8_t inverse = PackBits(si, 1, DemodBuffer); si += 1;
692 si += 1+1+2+1;
693 uint8_t modread = PackBits(si, 3, DemodBuffer); si += 3;
694 uint8_t maxBlk = PackBits(si, 3, DemodBuffer); si += 3;
695 //uint8_t ST = PackBits(si, 1, DemodBuffer); si += 1;
696 if (maxBlk == 0) continue;
697 //test modulation
698 if (!testQ5Modulation(mode, modread)) continue;
699 if (bitRate != clk) continue;
700 *fndBitRate = bitRate;
701 *offset = idx;
702
703 return TRUE;
704 }
705 return FALSE;
706 }
707
708 bool testBitRate(uint8_t readRate, uint8_t clk){
709 uint8_t expected[] = {8, 16, 32, 40, 50, 64, 100, 128};
710 if (expected[readRate] == clk)
711 return true;
712
713 return false;
714 }
715
716 bool test(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk, bool *Q5){
717
718 if ( DemodBufferLen < 64 ) return FALSE;
719 uint8_t si = 0;
720 for (uint8_t idx = 28; idx < 64; idx++){
721 si = idx;
722 if ( PackBits(si, 28, DemodBuffer) == 0x00 ) continue;
723
724 uint8_t safer = PackBits(si, 4, DemodBuffer); si += 4; //master key
725 uint8_t resv = PackBits(si, 4, DemodBuffer); si += 4; //was 7 & +=7+3 //should be only 4 bits if extended mode
726 // 2nibble must be zeroed.
727 // moved test to here, since this gets most faults first.
728 if ( resv > 0x00) continue;
729
730 uint8_t xtRate = PackBits(si, 3, DemodBuffer); si += 3; //extended mode part of rate
731 int bitRate = PackBits(si, 3, DemodBuffer); si += 3; //bit rate
732 if (bitRate > 7) continue;
733 uint8_t extend = PackBits(si, 1, DemodBuffer); si += 1; //bit 15 extended mode
734 uint8_t modread = PackBits(si, 5, DemodBuffer); si += 5+2+1;
735 //uint8_t pskcr = PackBits(si, 2, DemodBuffer); si += 2+1; //could check psk cr
736 uint8_t nml01 = PackBits(si, 1, DemodBuffer); si += 1+5; //bit 24, 30, 31 could be tested for 0 if not extended mode
737 uint8_t nml02 = PackBits(si, 2, DemodBuffer); si += 2;
738
739 //if extended mode
740 bool extMode =( (safer == 0x6 || safer == 0x9) && extend) ? TRUE : FALSE;
741
742 if (!extMode){
743 if (nml01 || nml02 || xtRate) continue;
744 }
745 //test modulation
746 if (!testModulation(mode, modread)) continue;
747 if (!testBitRate(bitRate, clk)) continue;
748 *fndBitRate = bitRate;
749 *offset = idx;
750 *Q5 = FALSE;
751 return TRUE;
752 }
753 if (testQ5(mode, offset, fndBitRate, clk)) {
754 *Q5 = TRUE;
755 return TRUE;
756 }
757 return FALSE;
758 }
759
760 void printT55xxBlock(const char *blockNum){
761
762 uint8_t i = config.offset;
763 uint8_t endpos = 32 + i;
764 uint32_t blockData = 0;
765 uint8_t bits[64] = {0x00};
766
767 if ( !DemodBufferLen) return;
768
769 if ( endpos > DemodBufferLen){
770 PrintAndLog("The configured offset %d is too big. Possible offset: %d)", i, DemodBufferLen-32);
771 return;
772 }
773
774 for (; i < endpos; ++i)
775 bits[i - config.offset]=DemodBuffer[i];
776
777 blockData = PackBits(0, 32, bits);
778
779 PrintAndLog(" %s | %08X | %s", blockNum, blockData, sprint_bin(bits,32));
780 }
781
782 int special(const char *Cmd) {
783 uint32_t blockData = 0;
784 uint8_t bits[32] = {0x00};
785
786 PrintAndLog("OFFSET | DATA | BINARY");
787 PrintAndLog("----------------------------------------------------");
788 int i,j = 0;
789 for (; j < 64; ++j){
790
791 for (i = 0; i < 32; ++i)
792 bits[i]=DemodBuffer[j+i];
793
794 blockData = PackBits(0, 32, bits);
795
796 PrintAndLog(" %02d | 0x%08X | %s",j , blockData, sprint_bin(bits,32));
797 }
798 return 0;
799 }
800
801 int printConfiguration( t55xx_conf_block_t b){
802 PrintAndLog("Chip Type : %s", (b.Q5) ? "T5555(Q5)" : "T55x7");
803 PrintAndLog("Modulation : %s", GetSelectedModulationStr(b.modulation) );
804 PrintAndLog("Bit Rate : %s", GetBitRateStr(b.bitrate) );
805 PrintAndLog("Inverted : %s", (b.inverted) ? "Yes" : "No" );
806 PrintAndLog("Offset : %d", b.offset);
807 PrintAndLog("Block0 : 0x%08X", b.block0);
808 PrintAndLog("");
809 return 0;
810 }
811
812 int CmdT55xxWakeUp(const char *Cmd) {
813 uint32_t password = 0;
814 uint8_t cmdp = 0;
815 bool errors = true;
816 while(param_getchar(Cmd, cmdp) != 0x00) {
817 switch(param_getchar(Cmd, cmdp)) {
818 case 'h':
819 case 'H':
820 return usage_t55xx_wakup();
821 case 'p':
822 case 'P':
823 password = param_get32ex(Cmd, cmdp+1, 0xFFFFFFFF, 16);
824 cmdp += 2;
825 errors = false;
826 break;
827 default:
828 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
829 errors = true;
830 break;
831 }
832 }
833 if (errors) return usage_t55xx_wakup();
834
835 UsbCommand c = {CMD_T55XX_WAKEUP, {password, 0, 0}};
836 clearCommandBuffer();
837 SendCommand(&c);
838 PrintAndLog("Wake up command sent. Try read now");
839 return 0;
840 }
841
842 int CmdT55xxWriteBlock(const char *Cmd) {
843 uint8_t block = 0xFF; //default to invalid block
844 uint32_t data = 0; //default to blank Block
845 uint32_t password = 0; //default to blank Block 7
846 bool usepwd = false;
847 bool page1 = false;
848 bool gotdata = false;
849 bool errors = false;
850 uint8_t cmdp = 0;
851 while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
852 switch(param_getchar(Cmd, cmdp)) {
853 case 'h':
854 case 'H':
855 return usage_t55xx_write();
856 case 'b':
857 case 'B':
858 errors |= param_getdec(Cmd, cmdp+1, &block);
859 cmdp += 2;
860 break;
861 case 'd':
862 case 'D':
863 data = param_get32ex(Cmd, cmdp+1, 0, 16);
864 gotdata = true;
865 cmdp += 2;
866 break;
867 case 'p':
868 case 'P':
869 password = param_get32ex(Cmd, cmdp+1, 0, 16);
870 usepwd = true;
871 cmdp += 2;
872 break;
873 case '1':
874 page1 = true;
875 cmdp++;
876 break;
877 default:
878 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
879 errors = true;
880 break;
881 }
882 }
883 if (errors || !gotdata) return usage_t55xx_write();
884
885 if (block > 7) {
886 PrintAndLog("Block number must be between 0 and 7");
887 return 0;
888 }
889
890 UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};
891 UsbCommand resp;
892 c.d.asBytes[0] = (page1) ? 0x2 : 0;
893
894 char pwdStr[16] = {0};
895 snprintf(pwdStr, sizeof(pwdStr), "pwd: 0x%08X", password);
896
897 PrintAndLog("Writing page %d block: %02d data: 0x%08X %s", page1, block, data, (usepwd) ? pwdStr : "" );
898
899 //Password mode
900 if (usepwd) {
901 c.arg[2] = password;
902 c.d.asBytes[0] |= 0x1;
903 }
904 clearCommandBuffer();
905 SendCommand(&c);
906 if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
907 PrintAndLog("Error occurred, device did not ACK write operation. (May be due to old firmware)");
908 return 0;
909 }
910 return 1;
911 }
912
913 int CmdT55xxReadTrace(const char *Cmd) {
914 char cmdp = param_getchar(Cmd, 0);
915 bool pwdmode = false;
916 uint32_t password = 0;
917 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
918 return usage_t55xx_trace();
919
920 if (strlen(Cmd)==0)
921 if ( !AquireData( T55x7_PAGE1, REGULAR_READ_MODE_BLOCK, pwdmode, password ) )
922 return 0;
923
924 if (!DecodeT55xxBlock()) return 0;
925
926 if ( !DemodBufferLen) return 0;
927
928 RepaintGraphWindow();
929 uint8_t repeat = 0;
930 if (config.offset > 5)
931 repeat = 32;
932 uint8_t si = config.offset+repeat;
933 uint32_t bl1 = PackBits(si, 32, DemodBuffer);
934 uint32_t bl2 = PackBits(si+32, 32, DemodBuffer);
935
936 uint32_t acl = PackBits(si, 8, DemodBuffer); si += 8;
937 uint32_t mfc = PackBits(si, 8, DemodBuffer); si += 8;
938 uint32_t cid = PackBits(si, 5, DemodBuffer); si += 5;
939 uint32_t icr = PackBits(si, 3, DemodBuffer); si += 3;
940 uint32_t year = PackBits(si, 4, DemodBuffer); si += 4;
941 uint32_t quarter = PackBits(si, 2, DemodBuffer); si += 2;
942 uint32_t lotid = PackBits(si, 14, DemodBuffer); si += 14;
943 uint32_t wafer = PackBits(si, 5, DemodBuffer); si += 5;
944 uint32_t dw = PackBits(si, 15, DemodBuffer);
945
946 time_t t = time(NULL);
947 struct tm tm = *localtime(&t);
948 if ( year > tm.tm_year-110)
949 year += 2000;
950 else
951 year += 2010;
952
953 if (config.Q5) PrintAndLog("*** Warning *** Info read off a Q5 will not work as expected");
954 if ( acl != 0xE0 ) {
955 PrintAndLog("The modulation is most likely wrong since the ACL is not 0xE0. ");
956 return 0;
957 }
958 PrintAndLog("");
959 PrintAndLog("-- T55xx Trace Information ----------------------------------");
960 PrintAndLog("-------------------------------------------------------------");
961 PrintAndLog(" ACL Allocation class (ISO/IEC 15963-1) : 0x%02X (%d)", acl, acl);
962 PrintAndLog(" MFC Manufacturer ID (ISO/IEC 7816-6) : 0x%02X (%d) - %s", mfc, mfc, getTagInfo(mfc));
963 PrintAndLog(" CID : 0x%02X (%d) - %s", cid, cid, GetModelStrFromCID(cid));
964 PrintAndLog(" ICR IC Revision : %d",icr );
965 PrintAndLog(" Manufactured");
966 PrintAndLog(" Year/Quarter : %d/%d",year, quarter);
967 PrintAndLog(" Lot ID : %d", lotid );
968 PrintAndLog(" Wafer number : %d", wafer);
969 PrintAndLog(" Die Number : %d", dw);
970 PrintAndLog("-------------------------------------------------------------");
971 PrintAndLog(" Raw Data - Page 1");
972 PrintAndLog(" Block 1 : 0x%08X %s", bl1, sprint_bin(DemodBuffer+config.offset+repeat,32) );
973 PrintAndLog(" Block 2 : 0x%08X %s", bl2, sprint_bin(DemodBuffer+config.offset+repeat+32,32) );
974 PrintAndLog("-------------------------------------------------------------");
975
976 /*
977 TRACE - BLOCK O
978 Bits Definition HEX
979 1-8 ACL Allocation class (ISO/IEC 15963-1) 0xE0
980 9-16 MFC Manufacturer ID (ISO/IEC 7816-6) 0x15 Atmel Corporation
981 17-21 CID 0x1 = Atmel ATA5577M1 0x2 = Atmel ATA5577M2
982 22-24 ICR IC revision
983 25-28 YEAR (BCD encoded) 9 (= 2009)
984 29-30 QUARTER 1,2,3,4
985 31-32 LOT ID
986
987 TRACE - BLOCK 1
988 1-12 LOT ID
989 13-17 Wafer number
990 18-32 DW, die number sequential
991 */
992
993 return 0;
994 }
995
996 int CmdT55xxInfo(const char *Cmd){
997 /*
998 Page 0 Block 0 Configuration data.
999 Normal mode
1000 Extended mode
1001 */
1002 bool pwdmode = false;
1003 uint32_t password = 0;
1004 char cmdp = param_getchar(Cmd, 0);
1005
1006 if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H')
1007 return usage_t55xx_info();
1008
1009 if (strlen(Cmd)==0)
1010 if ( !AquireData( T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, pwdmode, password ) )
1011 return 1;
1012
1013 if (!DecodeT55xxBlock()) return 1;
1014
1015 if ( DemodBufferLen < 32) return 1;
1016
1017 uint8_t si = config.offset;
1018 uint32_t bl0 = PackBits(si, 32, DemodBuffer);
1019
1020 uint32_t safer = PackBits(si, 4, DemodBuffer); si += 4;
1021 uint32_t resv = PackBits(si, 7, DemodBuffer); si += 7;
1022 uint32_t dbr = PackBits(si, 3, DemodBuffer); si += 3;
1023 uint32_t extend = PackBits(si, 1, DemodBuffer); si += 1;
1024 uint32_t datamod = PackBits(si, 5, DemodBuffer); si += 5;
1025 uint32_t pskcf = PackBits(si, 2, DemodBuffer); si += 2;
1026 uint32_t aor = PackBits(si, 1, DemodBuffer); si += 1;
1027 uint32_t otp = PackBits(si, 1, DemodBuffer); si += 1;
1028 uint32_t maxblk = PackBits(si, 3, DemodBuffer); si += 3;
1029 uint32_t pwd = PackBits(si, 1, DemodBuffer); si += 1;
1030 uint32_t sst = PackBits(si, 1, DemodBuffer); si += 1;
1031 uint32_t fw = PackBits(si, 1, DemodBuffer); si += 1;
1032 uint32_t inv = PackBits(si, 1, DemodBuffer); si += 1;
1033 uint32_t por = PackBits(si, 1, DemodBuffer); si += 1;
1034 if (config.Q5) PrintAndLog("*** Warning *** Config Info read off a Q5 will not display as expected");
1035 PrintAndLog("");
1036 PrintAndLog("-- T55xx Configuration & Tag Information --------------------");
1037 PrintAndLog("-------------------------------------------------------------");
1038 PrintAndLog(" Safer key : %s", GetSaferStr(safer));
1039 PrintAndLog(" reserved : %d", resv);
1040 PrintAndLog(" Data bit rate : %s", GetBitRateStr(dbr));
1041 PrintAndLog(" eXtended mode : %s", (extend) ? "Yes - Warning":"No");
1042 PrintAndLog(" Modulation : %s", GetModulationStr(datamod));
1043 PrintAndLog(" PSK clock frequency : %d", pskcf);
1044 PrintAndLog(" AOR - Answer on Request : %s", (aor) ? "Yes":"No");
1045 PrintAndLog(" OTP - One Time Pad : %s", (otp) ? "Yes - Warning":"No" );
1046 PrintAndLog(" Max block : %d", maxblk);
1047 PrintAndLog(" Password mode : %s", (pwd) ? "Yes":"No");
1048 PrintAndLog(" Sequence Start Terminator : %s", (sst) ? "Yes":"No");
1049 PrintAndLog(" Fast Write : %s", (fw) ? "Yes":"No");
1050 PrintAndLog(" Inverse data : %s", (inv) ? "Yes":"No");
1051 PrintAndLog(" POR-Delay : %s", (por) ? "Yes":"No");
1052 PrintAndLog("-------------------------------------------------------------");
1053 PrintAndLog(" Raw Data - Page 0");
1054 PrintAndLog(" Block 0 : 0x%08X %s", bl0, sprint_bin(DemodBuffer+config.offset,32) );
1055 PrintAndLog("-------------------------------------------------------------");
1056
1057 return 0;
1058 }
1059
1060 int CmdT55xxDump(const char *Cmd){
1061
1062 uint32_t password = 0;
1063 char cmdp = param_getchar(Cmd, 0);
1064 bool override = false;
1065 if ( cmdp == 'h' || cmdp == 'H') return usage_t55xx_dump();
1066
1067 bool usepwd = ( strlen(Cmd) > 0);
1068 if ( usepwd ){
1069 password = param_get32ex(Cmd, 0, 0, 16);
1070 if (param_getchar(Cmd, 1) =='o' )
1071 override = true;
1072 }
1073
1074 printT5xxHeader(0);
1075 for ( uint8_t i = 0; i <8; ++i)
1076 T55xxReadBlock(i, 0, usepwd, override, password);
1077
1078 printT5xxHeader(1);
1079 for ( uint8_t i = 0; i<4; i++)
1080 T55xxReadBlock(i, 1, usepwd, override, password);
1081
1082 return 1;
1083 }
1084
1085 int AquireData( uint8_t page, uint8_t block, bool pwdmode, uint32_t password ){
1086 // arg0 bitmodes:
1087 // bit0 = pwdmode
1088 // bit1 = page to read from
1089 uint8_t arg0 = (page<<1) | pwdmode;
1090 UsbCommand c = {CMD_T55XX_READ_BLOCK, {arg0, block, password}};
1091
1092 clearCommandBuffer();
1093 SendCommand(&c);
1094 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
1095 PrintAndLog("command execution time out");
1096 return 0;
1097 }
1098
1099 uint8_t got[12000];
1100 GetFromBigBuf(got,sizeof(got),0);
1101 WaitForResponse(CMD_ACK,NULL);
1102 setGraphBuf(got, sizeof(got));
1103 return 1;
1104 }
1105
1106 char * GetBitRateStr(uint32_t id){
1107 static char buf[25];
1108
1109 char *retStr = buf;
1110 switch (id){
1111 case 0:
1112 snprintf(retStr,sizeof(buf),"%d - RF/8",id);
1113 break;
1114 case 1:
1115 snprintf(retStr,sizeof(buf),"%d - RF/16",id);
1116 break;
1117 case 2:
1118 snprintf(retStr,sizeof(buf),"%d - RF/32",id);
1119 break;
1120 case 3:
1121 snprintf(retStr,sizeof(buf),"%d - RF/40",id);
1122 break;
1123 case 4:
1124 snprintf(retStr,sizeof(buf),"%d - RF/50",id);
1125 break;
1126 case 5:
1127 snprintf(retStr,sizeof(buf),"%d - RF/64",id);
1128 break;
1129 case 6:
1130 snprintf(retStr,sizeof(buf),"%d - RF/100",id);
1131 break;
1132 case 7:
1133 snprintf(retStr,sizeof(buf),"%d - RF/128",id);
1134 break;
1135 default:
1136 snprintf(retStr,sizeof(buf),"%d - (Unknown)",id);
1137 break;
1138 }
1139
1140 return buf;
1141 }
1142
1143 char * GetSaferStr(uint32_t id){
1144 static char buf[40];
1145 char *retStr = buf;
1146
1147 snprintf(retStr,sizeof(buf),"%d",id);
1148 if (id == 6) {
1149 snprintf(retStr,sizeof(buf),"%d - passwd",id);
1150 }
1151 if (id == 9 ){
1152 snprintf(retStr,sizeof(buf),"%d - testmode",id);
1153 }
1154
1155 return buf;
1156 }
1157
1158 char * GetModulationStr( uint32_t id){
1159 static char buf[60];
1160 char *retStr = buf;
1161
1162 switch (id){
1163 case 0:
1164 snprintf(retStr,sizeof(buf),"%d - DIRECT (ASK/NRZ)",id);
1165 break;
1166 case 1:
1167 snprintf(retStr,sizeof(buf),"%d - PSK 1 phase change when input changes",id);
1168 break;
1169 case 2:
1170 snprintf(retStr,sizeof(buf),"%d - PSK 2 phase change on bitclk if input high",id);
1171 break;
1172 case 3:
1173 snprintf(retStr,sizeof(buf),"%d - PSK 3 phase change on rising edge of input",id);
1174 break;
1175 case 4:
1176 snprintf(retStr,sizeof(buf),"%d - FSK 1 RF/8 RF/5",id);
1177 break;
1178 case 5:
1179 snprintf(retStr,sizeof(buf),"%d - FSK 2 RF/8 RF/10",id);
1180 break;
1181 case 6:
1182 snprintf(retStr,sizeof(buf),"%d - FSK 1a RF/5 RF/8",id);
1183 break;
1184 case 7:
1185 snprintf(retStr,sizeof(buf),"%d - FSK 2a RF/10 RF/8",id);
1186 break;
1187 case 8:
1188 snprintf(retStr,sizeof(buf),"%d - Manchester",id);
1189 break;
1190 case 16:
1191 snprintf(retStr,sizeof(buf),"%d - Biphase",id);
1192 break;
1193 case 0x18:
1194 snprintf(retStr,sizeof(buf),"%d - Biphase a - AKA Conditional Dephase Encoding(CDP)",id);
1195 break;
1196 case 17:
1197 snprintf(retStr,sizeof(buf),"%d - Reserved",id);
1198 break;
1199 default:
1200 snprintf(retStr,sizeof(buf),"0x%02X (Unknown)",id);
1201 break;
1202 }
1203 return buf;
1204 }
1205
1206 char * GetModelStrFromCID(uint32_t cid){
1207
1208 static char buf[10];
1209 char *retStr = buf;
1210
1211 if (cid == 1) snprintf(retStr, sizeof(buf),"ATA5577M1");
1212 if (cid == 2) snprintf(retStr, sizeof(buf),"ATA5577M2");
1213 return buf;
1214 }
1215
1216 char * GetSelectedModulationStr( uint8_t id){
1217
1218 static char buf[20];
1219 char *retStr = buf;
1220
1221 switch (id){
1222 case DEMOD_FSK:
1223 snprintf(retStr,sizeof(buf),"FSK");
1224 break;
1225 case DEMOD_FSK1:
1226 snprintf(retStr,sizeof(buf),"FSK1");
1227 break;
1228 case DEMOD_FSK1a:
1229 snprintf(retStr,sizeof(buf),"FSK1a");
1230 break;
1231 case DEMOD_FSK2:
1232 snprintf(retStr,sizeof(buf),"FSK2");
1233 break;
1234 case DEMOD_FSK2a:
1235 snprintf(retStr,sizeof(buf),"FSK2a");
1236 break;
1237 case DEMOD_ASK:
1238 snprintf(retStr,sizeof(buf),"ASK");
1239 break;
1240 case DEMOD_NRZ:
1241 snprintf(retStr,sizeof(buf),"DIRECT/NRZ");
1242 break;
1243 case DEMOD_PSK1:
1244 snprintf(retStr,sizeof(buf),"PSK1");
1245 break;
1246 case DEMOD_PSK2:
1247 snprintf(retStr,sizeof(buf),"PSK2");
1248 break;
1249 case DEMOD_PSK3:
1250 snprintf(retStr,sizeof(buf),"PSK3");
1251 break;
1252 case DEMOD_BI:
1253 snprintf(retStr,sizeof(buf),"BIPHASE");
1254 break;
1255 case DEMOD_BIa:
1256 snprintf(retStr,sizeof(buf),"BIPHASEa - (CDP)");
1257 break;
1258 default:
1259 snprintf(retStr,sizeof(buf),"(Unknown)");
1260 break;
1261 }
1262 return buf;
1263 }
1264
1265 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){
1266
1267 int i = start;
1268 int j = len-1;
1269
1270 if (len > 32) return 0;
1271
1272 uint32_t tmp = 0;
1273 for (; j >= 0; --j, ++i)
1274 tmp |= bits[i] << j;
1275
1276 return tmp;
1277 }
1278
1279 int CmdResetRead(const char *Cmd) {
1280 UsbCommand c = {CMD_T55XX_RESET_READ, {0,0,0}};
1281
1282 clearCommandBuffer();
1283 SendCommand(&c);
1284 if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
1285 PrintAndLog("command execution time out");
1286 return 0;
1287 }
1288
1289 uint8_t got[BIGBUF_SIZE-1];
1290 GetFromBigBuf(got,sizeof(got),0);
1291 WaitForResponse(CMD_ACK,NULL);
1292 setGraphBuf(got, sizeof(got));
1293 return 1;
1294 }
1295
1296 int CmdT55xxWipe(const char *Cmd) {
1297 char writeData[20] = {0};
1298 char *ptrData = writeData;
1299
1300 PrintAndLog("\nBeginning Wipe of a T55xx tag (assuming the tag is not password protected)\n");
1301
1302 //try with the default password to reset block 0 (with a pwd should work even if pwd bit not set)
1303 snprintf(ptrData,sizeof(writeData),"b 0 d 00088040 p 0");
1304
1305 if (!CmdT55xxWriteBlock(ptrData))
1306 PrintAndLog("Error writing blk 0");
1307
1308 for (uint8_t blk = 1; blk<8; blk++) {
1309 snprintf(ptrData,sizeof(writeData),"b %d d 0", blk);
1310 if (!CmdT55xxWriteBlock(ptrData))
1311 PrintAndLog("Error writing blk %d", blk);
1312
1313 memset(writeData, sizeof(writeData), 0x00);
1314 }
1315 return 0;
1316 }
1317
1318 int CmdT55xxBruteForce(const char *Cmd) {
1319
1320 // load a default pwd file.
1321 char buf[9];
1322 char filename[FILE_PATH_SIZE]={0};
1323 int keycnt = 0;
1324 uint8_t stKeyBlock = 20;
1325 uint8_t *keyBlock = NULL, *p;
1326 keyBlock = calloc(stKeyBlock, 6);
1327 if (keyBlock == NULL) return 1;
1328
1329 uint32_t start_password = 0x00000000; //start password
1330 uint32_t end_password = 0xFFFFFFFF; //end password
1331 bool found = false;
1332
1333 char cmdp = param_getchar(Cmd, 0);
1334 if (cmdp == 'h' || cmdp == 'H') return usage_t55xx_bruteforce();
1335
1336 if (cmdp == 'i' || cmdp == 'I') {
1337
1338 int len = strlen(Cmd+2);
1339 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
1340 memcpy(filename, Cmd+2, len);
1341
1342 FILE * f = fopen( filename , "r");
1343
1344 if ( !f ) {
1345 PrintAndLog("File: %s: not found or locked.", filename);
1346 free(keyBlock);
1347 return 1;
1348 }
1349
1350 while( fgets(buf, sizeof(buf), f) ){
1351 if (strlen(buf) < 8 || buf[7] == '\n') continue;
1352
1353 while (fgetc(f) != '\n' && !feof(f)) ; //goto next line
1354
1355 //The line start with # is comment, skip
1356 if( buf[0]=='#' ) continue;
1357
1358 if (!isxdigit(buf[0])){
1359 PrintAndLog("File content error. '%s' must include 8 HEX symbols", buf);
1360 continue;
1361 }
1362
1363 buf[8] = 0;
1364
1365 if ( stKeyBlock - keycnt < 2) {
1366 p = realloc(keyBlock, 6*(stKeyBlock+=10));
1367 if (!p) {
1368 PrintAndLog("Cannot allocate memory for defaultKeys");
1369 free(keyBlock);
1370 return 2;
1371 }
1372 keyBlock = p;
1373 }
1374 memset(keyBlock + 4 * keycnt, 0, 4);
1375 num_to_bytes(strtoll(buf, NULL, 16), 4, keyBlock + 4*keycnt);
1376 PrintAndLog("chk custom pwd[%2d] %08X", keycnt, bytes_to_num(keyBlock + 4*keycnt, 4));
1377 keycnt++;
1378 memset(buf, 0, sizeof(buf));
1379 }
1380 fclose(f);
1381
1382 if (keycnt == 0) {
1383 PrintAndLog("No keys found in file");
1384 return 1;
1385 }
1386 PrintAndLog("Loaded %d keys", keycnt);
1387
1388 // loop
1389 uint64_t testpwd = 0x00;
1390 for (uint16_t c = 0; c < keycnt; ++c ) {
1391
1392 if (ukbhit()) {
1393 getchar();
1394 printf("\naborted via keyboard!\n");
1395 return 0;
1396 }
1397
1398 testpwd = bytes_to_num(keyBlock + 4*c, 4);
1399
1400 PrintAndLog("Testing %08X", testpwd);
1401
1402 if ( !AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, testpwd)) {
1403 PrintAndLog("Aquireing data from device failed. Quitting");
1404 return 0;
1405 }
1406
1407 found = tryDetectModulation();
1408
1409 if ( found ) {
1410 PrintAndLog("Found valid password: [%08X]", testpwd);
1411 return 0;
1412 }
1413 }
1414 PrintAndLog("Password NOT found.");
1415 return 0;
1416 }
1417
1418 // Try to read Block 7, first :)
1419
1420 // incremental pwd range search
1421 start_password = param_get32ex(Cmd, 0, 0, 16);
1422 end_password = param_get32ex(Cmd, 1, 0, 16);
1423
1424 if ( start_password >= end_password ) return usage_t55xx_bruteforce();
1425
1426 PrintAndLog("Search password range [%08X -> %08X]", start_password, end_password);
1427
1428 uint32_t i = start_password;
1429
1430 while ((!found) && (i <= end_password)){
1431
1432 printf(".");
1433 fflush(stdout);
1434 if (ukbhit()) {
1435 getchar();
1436 printf("\naborted via keyboard!\n");
1437 return 0;
1438 }
1439
1440 if (!AquireData(T55x7_PAGE0, T55x7_CONFIGURATION_BLOCK, TRUE, i)) {
1441 PrintAndLog("Aquireing data from device failed. Quitting");
1442 return 0;
1443 }
1444 found = tryDetectModulation();
1445
1446 if (found) break;
1447 i++;
1448 }
1449
1450 PrintAndLog("");
1451
1452 if (found)
1453 PrintAndLog("Found valid password: [%08x]", i);
1454 else
1455 PrintAndLog("Password NOT found. Last tried: [%08x]", --i);
1456 return 0;
1457 }
1458
1459 static command_t CommandTable[] = {
1460 {"help", CmdHelp, 1, "This help"},
1461 {"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},
1462 {"config", CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},
1463 {"detect", CmdT55xxDetect, 1, "[1] Try detecting the tag modulation from reading the configuration block."},
1464 {"read", CmdT55xxReadBlock, 0, "b <block> p [password] [o] [1] -- Read T55xx block data. Optional [p password], [override], [page1]"},
1465 {"resetread", CmdResetRead, 0, "Send Reset Cmd then lf read the stream to attempt to identify the start of it (needs a demod and/or plot after)"},
1466 {"write", CmdT55xxWriteBlock,0, "b <block> d <data> p [password] [1] -- Write T55xx block data. Optional [p password], [page1]"},
1467 {"trace", CmdT55xxReadTrace, 1, "[1] Show T55x7 traceability data (page 1/ blk 0-1)"},
1468 {"info", CmdT55xxInfo, 1, "[1] Show T55x7 configuration data (page 0/ blk 0)"},
1469 {"dump", CmdT55xxDump, 0, "[password] [o] Dump T55xx card block 0-7. Optional [password], [override]"},
1470 {"special", special, 0, "Show block changes with 64 different offsets"},
1471 {"wakeup", CmdT55xxWakeUp, 0, "Send AOR wakeup command"},
1472 {"wipe", CmdT55xxWipe, 0, "Wipe a T55xx tag and set defaults (will destroy any data on tag)"},
1473 {NULL, NULL, 0, NULL}
1474 };
1475
1476 int CmdLFT55XX(const char *Cmd) {
1477 CmdsParse(CommandTable, Cmd);
1478 return 0;
1479 }
1480
1481 int CmdHelp(const char *Cmd) {
1482 CmdsHelp(CommandTable);
1483 return 0;
1484 }
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