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1 | //----------------------------------------------------------------------------- | |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // Low frequency EM4x commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
11 | #include <stdio.h> | |
12 | #include <string.h> | |
13 | #include <inttypes.h> | |
14 | #include "cmdlfem4x.h" | |
15 | ||
16 | uint64_t g_em410xid = 0; | |
17 | ||
18 | static int CmdHelp(const char *Cmd); | |
19 | ||
20 | int CmdEMdemodASK(const char *Cmd) | |
21 | { | |
22 | char cmdp = param_getchar(Cmd, 0); | |
23 | int findone = (cmdp == '1') ? 1 : 0; | |
24 | UsbCommand c={CMD_EM410X_DEMOD}; | |
25 | c.arg[0]=findone; | |
26 | SendCommand(&c); | |
27 | return 0; | |
28 | } | |
29 | ||
30 | /* Read the ID of an EM410x tag. | |
31 | * Format: | |
32 | * 1111 1111 1 <-- standard non-repeatable header | |
33 | * XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID | |
34 | * .... | |
35 | * CCCC <-- each bit here is parity for the 10 bits above in corresponding column | |
36 | * 0 <-- stop bit, end of tag | |
37 | */ | |
38 | int CmdEM410xRead(const char *Cmd) | |
39 | { | |
40 | uint32_t hi=0; | |
41 | uint64_t lo=0; | |
42 | ||
43 | if(!AskEm410xDemod("", &hi, &lo, false)) return 0; | |
44 | PrintAndLog("EM410x pattern found: "); | |
45 | printEM410x(hi, lo); | |
46 | if (hi){ | |
47 | PrintAndLog ("EM410x XL pattern found"); | |
48 | return 0; | |
49 | } | |
50 | g_em410xid = lo; | |
51 | return 1; | |
52 | } | |
53 | ||
54 | // emulate an EM410X tag | |
55 | int CmdEM410xSim(const char *Cmd) | |
56 | { | |
57 | int i, n, j, binary[4], parity[4]; | |
58 | uint8_t uid[5] = {0x00}; | |
59 | ||
60 | char cmdp = param_getchar(Cmd, 0); | |
61 | if (cmdp == 'h' || cmdp == 'H') { | |
62 | PrintAndLog("Usage: lf em4x em410xsim <UID> <clock>"); | |
63 | PrintAndLog(""); | |
64 | PrintAndLog(" sample: lf em4x em410xsim 0F0368568B"); | |
65 | return 0; | |
66 | } | |
67 | /* clock is 64 in EM410x tags */ | |
68 | uint8_t clock = 64; | |
69 | ||
70 | if (param_gethex(Cmd, 0, uid, 10)) { | |
71 | PrintAndLog("UID must include 10 HEX symbols"); | |
72 | return 0; | |
73 | } | |
74 | param_getdec(Cmd, 1, &clock); | |
75 | ||
76 | PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock); | |
77 | PrintAndLog("Press pm3-button to about simulation"); | |
78 | ||
79 | /* clear our graph */ | |
80 | ClearGraph(0); | |
81 | ||
82 | /* write 9 start bits */ | |
83 | for (i = 0; i < 9; i++) | |
84 | AppendGraph(0, clock, 1); | |
85 | ||
86 | /* for each hex char */ | |
87 | parity[0] = parity[1] = parity[2] = parity[3] = 0; | |
88 | for (i = 0; i < 10; i++) | |
89 | { | |
90 | /* read each hex char */ | |
91 | sscanf(&Cmd[i], "%1x", &n); | |
92 | for (j = 3; j >= 0; j--, n/= 2) | |
93 | binary[j] = n % 2; | |
94 | ||
95 | /* append each bit */ | |
96 | AppendGraph(0, clock, binary[0]); | |
97 | AppendGraph(0, clock, binary[1]); | |
98 | AppendGraph(0, clock, binary[2]); | |
99 | AppendGraph(0, clock, binary[3]); | |
100 | ||
101 | /* append parity bit */ | |
102 | AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]); | |
103 | ||
104 | /* keep track of column parity */ | |
105 | parity[0] ^= binary[0]; | |
106 | parity[1] ^= binary[1]; | |
107 | parity[2] ^= binary[2]; | |
108 | parity[3] ^= binary[3]; | |
109 | } | |
110 | ||
111 | /* parity columns */ | |
112 | AppendGraph(0, clock, parity[0]); | |
113 | AppendGraph(0, clock, parity[1]); | |
114 | AppendGraph(0, clock, parity[2]); | |
115 | AppendGraph(0, clock, parity[3]); | |
116 | ||
117 | /* stop bit */ | |
118 | AppendGraph(1, clock, 0); | |
119 | ||
120 | CmdLFSim("0"); //240 start_gap. | |
121 | return 0; | |
122 | } | |
123 | ||
124 | /* Function is equivalent of lf read + data samples + em410xread | |
125 | * looped until an EM410x tag is detected | |
126 | * | |
127 | * Why is CmdSamples("16000")? | |
128 | * TBD: Auto-grow sample size based on detected sample rate. IE: If the | |
129 | * rate gets lower, then grow the number of samples | |
130 | * Changed by martin, 4000 x 4 = 16000, | |
131 | * see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235 | |
132 | */ | |
133 | int CmdEM410xWatch(const char *Cmd) | |
134 | { | |
135 | do { | |
136 | if (ukbhit()) { | |
137 | printf("\naborted via keyboard!\n"); | |
138 | break; | |
139 | } | |
140 | ||
141 | CmdLFRead("s"); | |
142 | getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9) | |
143 | } while (!CmdEM410xRead("")); | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | //currently only supports manchester modulations | |
149 | // todo: helptext | |
150 | int CmdEM410xWatchnSpoof(const char *Cmd) | |
151 | { | |
152 | // loops if the captured ID was in XL-format. | |
153 | uint8_t ans = 0; | |
154 | do { | |
155 | ans = CmdEM410xWatch(Cmd); | |
156 | if ( ans ) { | |
157 | PrintAndLog("# Replaying captured ID: %llu", g_em410xid); | |
158 | CmdLFaskSim(""); | |
159 | } | |
160 | } while ( !ans ); | |
161 | return 0; | |
162 | } | |
163 | ||
164 | int CmdEM410xWrite(const char *Cmd) | |
165 | { | |
166 | uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value | |
167 | int card = 0xFF; // invalid card value | |
168 | uint32_t clock = 0; // invalid clock value | |
169 | ||
170 | sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock); | |
171 | ||
172 | // Check ID | |
173 | if (id == 0xFFFFFFFFFFFFFFFF) { | |
174 | PrintAndLog("Error! ID is required.\n"); | |
175 | return 0; | |
176 | } | |
177 | if (id >= 0x10000000000) { | |
178 | PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n"); | |
179 | return 0; | |
180 | } | |
181 | ||
182 | // Check Card | |
183 | if (card == 0xFF) { | |
184 | PrintAndLog("Error! Card type required.\n"); | |
185 | return 0; | |
186 | } | |
187 | if (card < 0) { | |
188 | PrintAndLog("Error! Bad card type selected.\n"); | |
189 | return 0; | |
190 | } | |
191 | ||
192 | // Check Clock | |
193 | // Default: 64 | |
194 | if (clock == 0) | |
195 | clock = 64; | |
196 | ||
197 | // Allowed clock rates: 16, 32, 40 and 64 | |
198 | if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) { | |
199 | PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock); | |
200 | return 0; | |
201 | } | |
202 | ||
203 | if (card == 1) { | |
204 | PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock); | |
205 | // NOTE: We really should pass the clock in as a separate argument, but to | |
206 | // provide for backwards-compatibility for older firmware, and to avoid | |
207 | // having to add another argument to CMD_EM410X_WRITE_TAG, we just store | |
208 | // the clock rate in bits 8-15 of the card value | |
209 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); | |
210 | } else if (card == 0) { | |
211 | PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock); | |
212 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); | |
213 | } else { | |
214 | PrintAndLog("Error! Bad card type selected.\n"); | |
215 | return 0; | |
216 | } | |
217 | ||
218 | UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}}; | |
219 | SendCommand(&c); | |
220 | return 0; | |
221 | } | |
222 | ||
223 | bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) | |
224 | { | |
225 | if (rows*cols>size) return false; | |
226 | uint8_t colP=0; | |
227 | //assume last col is a parity and do not test | |
228 | for (uint8_t colNum = 0; colNum < cols-1; colNum++) { | |
229 | for (uint8_t rowNum = 0; rowNum < rows; rowNum++) { | |
230 | colP ^= BitStream[(rowNum*cols)+colNum]; | |
231 | } | |
232 | if (colP != pType) return false; | |
233 | } | |
234 | return true; | |
235 | } | |
236 | ||
237 | bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) | |
238 | { | |
239 | if (rows*cols>size) return false; | |
240 | uint8_t rowP=0; | |
241 | //assume last row is a parity row and do not test | |
242 | for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) { | |
243 | for (uint8_t colNum = 0; colNum < cols; colNum++) { | |
244 | rowP ^= BitStream[(rowNum*cols)+colNum]; | |
245 | } | |
246 | if (rowP != pType) return false; | |
247 | } | |
248 | return true; | |
249 | } | |
250 | ||
251 | uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest) | |
252 | { | |
253 | if (size<45) return 0; | |
254 | uint32_t code = bytebits_to_byte(BitStream,8); | |
255 | code = code<<8 | bytebits_to_byte(BitStream+9,8); | |
256 | code = code<<8 | bytebits_to_byte(BitStream+18,8); | |
257 | code = code<<8 | bytebits_to_byte(BitStream+27,8); | |
258 | if (verbose || g_debugMode){ | |
259 | for (uint8_t i = 0; i<5; i++){ | |
260 | if (i == 4) PrintAndLog(""); //parity byte spacer | |
261 | PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x", | |
262 | BitStream[i*9], | |
263 | BitStream[i*9+1], | |
264 | BitStream[i*9+2], | |
265 | BitStream[i*9+3], | |
266 | BitStream[i*9+4], | |
267 | BitStream[i*9+5], | |
268 | BitStream[i*9+6], | |
269 | BitStream[i*9+7], | |
270 | BitStream[i*9+8], | |
271 | bytebits_to_byte(BitStream+i*9,8) | |
272 | ); | |
273 | } | |
274 | if (pTest) | |
275 | PrintAndLog("Parity Passed"); | |
276 | else | |
277 | PrintAndLog("Parity Failed"); | |
278 | } | |
279 | return code; | |
280 | } | |
281 | /* Read the transmitted data of an EM4x50 tag | |
282 | * Format: | |
283 | * | |
284 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
285 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
286 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
287 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
288 | * CCCCCCCC <- column parity bits | |
289 | * 0 <- stop bit | |
290 | * LW <- Listen Window | |
291 | * | |
292 | * This pattern repeats for every block of data being transmitted. | |
293 | * Transmission starts with two Listen Windows (LW - a modulated | |
294 | * pattern of 320 cycles each (32/32/128/64/64)). | |
295 | * | |
296 | * Note that this data may or may not be the UID. It is whatever data | |
297 | * is stored in the blocks defined in the control word First and Last | |
298 | * Word Read values. UID is stored in block 32. | |
299 | */ | |
300 | //completed by Marshmellow | |
301 | int EM4x50Read(const char *Cmd, bool verbose) | |
302 | { | |
303 | uint8_t fndClk[] = {8,16,32,40,50,64,128}; | |
304 | int clk = 0; | |
305 | int invert = 0; | |
306 | int tol = 0; | |
307 | int i, j, startblock, skip, block, start, end, low, high, minClk; | |
308 | bool complete = false; | |
309 | int tmpbuff[MAX_GRAPH_TRACE_LEN / 64]; | |
310 | uint32_t Code[6]; | |
311 | char tmp[6]; | |
312 | char tmp2[20]; | |
313 | int phaseoff; | |
314 | high = low = 0; | |
315 | memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64); | |
316 | ||
317 | // get user entry if any | |
318 | sscanf(Cmd, "%i %i", &clk, &invert); | |
319 | ||
320 | // save GraphBuffer - to restore it later | |
321 | save_restoreGB(1); | |
322 | ||
323 | // first get high and low values | |
324 | for (i = 0; i < GraphTraceLen; i++) { | |
325 | if (GraphBuffer[i] > high) | |
326 | high = GraphBuffer[i]; | |
327 | else if (GraphBuffer[i] < low) | |
328 | low = GraphBuffer[i]; | |
329 | } | |
330 | ||
331 | i = 0; | |
332 | j = 0; | |
333 | minClk = 255; | |
334 | // get to first full low to prime loop and skip incomplete first pulse | |
335 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) | |
336 | ++i; | |
337 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) | |
338 | ++i; | |
339 | skip = i; | |
340 | ||
341 | // populate tmpbuff buffer with pulse lengths | |
342 | while (i < GraphTraceLen) { | |
343 | // measure from low to low | |
344 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) | |
345 | ++i; | |
346 | start= i; | |
347 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) | |
348 | ++i; | |
349 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) | |
350 | ++i; | |
351 | if (j>=(MAX_GRAPH_TRACE_LEN/64)) { | |
352 | break; | |
353 | } | |
354 | tmpbuff[j++]= i - start; | |
355 | if (i-start < minClk && i < GraphTraceLen) { | |
356 | minClk = i - start; | |
357 | } | |
358 | } | |
359 | // set clock | |
360 | if (!clk) { | |
361 | for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) { | |
362 | tol = fndClk[clkCnt]/8; | |
363 | if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) { | |
364 | clk=fndClk[clkCnt]; | |
365 | break; | |
366 | } | |
367 | } | |
368 | if (!clk) return 0; | |
369 | } else tol = clk/8; | |
370 | ||
371 | // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2) | |
372 | start = -1; | |
373 | for (i= 0; i < j - 4 ; ++i) { | |
374 | skip += tmpbuff[i]; | |
375 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks | |
376 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
377 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
378 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
379 | { | |
380 | start= i + 4; | |
381 | break; | |
382 | } | |
383 | } | |
384 | startblock = i + 4; | |
385 | ||
386 | // skip over the remainder of LW | |
387 | skip += tmpbuff[i+1] + tmpbuff[i+2] + clk; | |
388 | if (tmpbuff[i+3]>clk) | |
389 | phaseoff = tmpbuff[i+3]-clk; | |
390 | else | |
391 | phaseoff = 0; | |
392 | // now do it again to find the end | |
393 | end = skip; | |
394 | for (i += 3; i < j - 4 ; ++i) { | |
395 | end += tmpbuff[i]; | |
396 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks | |
397 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
398 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
399 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
400 | { | |
401 | complete= true; | |
402 | break; | |
403 | } | |
404 | } | |
405 | end = i; | |
406 | // report back | |
407 | if (verbose || g_debugMode) { | |
408 | if (start >= 0) { | |
409 | PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)"); | |
410 | } else { | |
411 | PrintAndLog("No data found!, clock tried:%d",clk); | |
412 | PrintAndLog("Try again with more samples."); | |
413 | PrintAndLog(" or after a 'data askedge' command to clean up the read"); | |
414 | return 0; | |
415 | } | |
416 | } else if (start < 0) return 0; | |
417 | start = skip; | |
418 | snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47); | |
419 | // get rid of leading crap | |
420 | snprintf(tmp, sizeof(tmp), "%i", skip); | |
421 | CmdLtrim(tmp); | |
422 | bool pTest; | |
423 | bool AllPTest = true; | |
424 | // now work through remaining buffer printing out data blocks | |
425 | block = 0; | |
426 | i = startblock; | |
427 | while (block < 6) { | |
428 | if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block); | |
429 | skip = phaseoff; | |
430 | ||
431 | // look for LW before start of next block | |
432 | for ( ; i < j - 4 ; ++i) { | |
433 | skip += tmpbuff[i]; | |
434 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) | |
435 | if (tmpbuff[i+1] >= clk-tol) | |
436 | break; | |
437 | } | |
438 | if (i >= j-4) break; //next LW not found | |
439 | skip += clk; | |
440 | if (tmpbuff[i+1]>clk) | |
441 | phaseoff = tmpbuff[i+1]-clk; | |
442 | else | |
443 | phaseoff = 0; | |
444 | i += 2; | |
445 | if (ASKDemod(tmp2, false, false, 1) < 1) { | |
446 | save_restoreGB(0); | |
447 | return 0; | |
448 | } | |
449 | //set DemodBufferLen to just one block | |
450 | DemodBufferLen = skip/clk; | |
451 | //test parities | |
452 | pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
453 | pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
454 | AllPTest &= pTest; | |
455 | //get output | |
456 | Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest); | |
457 | if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk); | |
458 | //skip to start of next block | |
459 | snprintf(tmp,sizeof(tmp),"%i",skip); | |
460 | CmdLtrim(tmp); | |
461 | block++; | |
462 | if (i >= end) break; //in case chip doesn't output 6 blocks | |
463 | } | |
464 | //print full code: | |
465 | if (verbose || g_debugMode || AllPTest){ | |
466 | if (!complete) { | |
467 | PrintAndLog("*** Warning!"); | |
468 | PrintAndLog("Partial data - no end found!"); | |
469 | PrintAndLog("Try again with more samples."); | |
470 | } | |
471 | PrintAndLog("Found data at sample: %i - using clock: %i", start, clk); | |
472 | end = block; | |
473 | for (block=0; block < end; block++){ | |
474 | PrintAndLog("Block %d: %08x",block,Code[block]); | |
475 | } | |
476 | if (AllPTest) { | |
477 | PrintAndLog("Parities Passed"); | |
478 | } else { | |
479 | PrintAndLog("Parities Failed"); | |
480 | PrintAndLog("Try cleaning the read samples with 'data askedge'"); | |
481 | } | |
482 | } | |
483 | ||
484 | //restore GraphBuffer | |
485 | save_restoreGB(0); | |
486 | return (int)AllPTest; | |
487 | } | |
488 | ||
489 | int CmdEM4x50Read(const char *Cmd) | |
490 | { | |
491 | return EM4x50Read(Cmd, true); | |
492 | } | |
493 | ||
494 | int CmdReadWord(const char *Cmd) | |
495 | { | |
496 | int Word = -1; //default to invalid word | |
497 | UsbCommand c; | |
498 | ||
499 | sscanf(Cmd, "%d", &Word); | |
500 | ||
501 | if ( (Word > 15) | (Word < 0) ) { | |
502 | PrintAndLog("Word must be between 0 and 15"); | |
503 | return 1; | |
504 | } | |
505 | ||
506 | PrintAndLog("Reading word %d", Word); | |
507 | ||
508 | c.cmd = CMD_EM4X_READ_WORD; | |
509 | c.d.asBytes[0] = 0x0; //Normal mode | |
510 | c.arg[0] = 0; | |
511 | c.arg[1] = Word; | |
512 | c.arg[2] = 0; | |
513 | SendCommand(&c); | |
514 | return 0; | |
515 | } | |
516 | ||
517 | int CmdReadWordPWD(const char *Cmd) | |
518 | { | |
519 | int Word = -1; //default to invalid word | |
520 | int Password = 0xFFFFFFFF; //default to blank password | |
521 | UsbCommand c; | |
522 | ||
523 | sscanf(Cmd, "%d %x", &Word, &Password); | |
524 | ||
525 | if ( (Word > 15) | (Word < 0) ) { | |
526 | PrintAndLog("Word must be between 0 and 15"); | |
527 | return 1; | |
528 | } | |
529 | ||
530 | PrintAndLog("Reading word %d with password %08X", Word, Password); | |
531 | ||
532 | c.cmd = CMD_EM4X_READ_WORD; | |
533 | c.d.asBytes[0] = 0x1; //Password mode | |
534 | c.arg[0] = 0; | |
535 | c.arg[1] = Word; | |
536 | c.arg[2] = Password; | |
537 | SendCommand(&c); | |
538 | return 0; | |
539 | } | |
540 | ||
541 | int CmdWriteWord(const char *Cmd) | |
542 | { | |
543 | int Word = 16; //default to invalid block | |
544 | int Data = 0xFFFFFFFF; //default to blank data | |
545 | UsbCommand c; | |
546 | ||
547 | sscanf(Cmd, "%x %d", &Data, &Word); | |
548 | ||
549 | if (Word > 15) { | |
550 | PrintAndLog("Word must be between 0 and 15"); | |
551 | return 1; | |
552 | } | |
553 | ||
554 | PrintAndLog("Writing word %d with data %08X", Word, Data); | |
555 | ||
556 | c.cmd = CMD_EM4X_WRITE_WORD; | |
557 | c.d.asBytes[0] = 0x0; //Normal mode | |
558 | c.arg[0] = Data; | |
559 | c.arg[1] = Word; | |
560 | c.arg[2] = 0; | |
561 | SendCommand(&c); | |
562 | return 0; | |
563 | } | |
564 | ||
565 | int CmdWriteWordPWD(const char *Cmd) | |
566 | { | |
567 | int Word = 16; //default to invalid word | |
568 | int Data = 0xFFFFFFFF; //default to blank data | |
569 | int Password = 0xFFFFFFFF; //default to blank password | |
570 | UsbCommand c; | |
571 | ||
572 | sscanf(Cmd, "%x %d %x", &Data, &Word, &Password); | |
573 | ||
574 | if (Word > 15) { | |
575 | PrintAndLog("Word must be between 0 and 15"); | |
576 | return 1; | |
577 | } | |
578 | ||
579 | PrintAndLog("Writing word %d with data %08X and password %08X", Word, Data, Password); | |
580 | ||
581 | c.cmd = CMD_EM4X_WRITE_WORD; | |
582 | c.d.asBytes[0] = 0x1; //Password mode | |
583 | c.arg[0] = Data; | |
584 | c.arg[1] = Word; | |
585 | c.arg[2] = Password; | |
586 | SendCommand(&c); | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static command_t CommandTable[] = | |
591 | { | |
592 | {"help", CmdHelp, 1, "This help"}, | |
593 | {"em410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, | |
594 | {"em410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"}, | |
595 | {"em410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"}, | |
596 | {"em410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, | |
597 | {"em410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, | |
598 | {"em410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, | |
599 | {"em4x50read", CmdEM4x50Read, 1, "Extract data from EM4x50 tag"}, | |
600 | {"readword", CmdReadWord, 1, "<Word> -- Read EM4xxx word data"}, | |
601 | {"readwordPWD", CmdReadWordPWD, 1, "<Word> <Password> -- Read EM4xxx word data in password mode"}, | |
602 | {"writeword", CmdWriteWord, 1, "<Data> <Word> -- Write EM4xxx word data"}, | |
603 | {"writewordPWD", CmdWriteWordPWD, 1, "<Data> <Word> <Password> -- Write EM4xxx word data in password mode"}, | |
604 | {NULL, NULL, 0, NULL} | |
605 | }; | |
606 | ||
607 | int CmdLFEM4X(const char *Cmd) { | |
608 | clearCommandBuffer(); | |
609 | CmdsParse(CommandTable, Cmd); | |
610 | return 0; | |
611 | } | |
612 | ||
613 | int CmdHelp(const char *Cmd) { | |
614 | CmdsHelp(CommandTable); | |
615 | return 0; | |
616 | } |