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a553f267 | 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 | ||
7fe9b0b7 | 11 | #include "cmdlfem4x.h" |
0ad1a1d4 | 12 | |
3c6354e9 | 13 | uint64_t g_em410xid = 0; |
7fe9b0b7 | 14 | |
15 | static int CmdHelp(const char *Cmd); | |
16 | ||
66707a3b | 17 | int CmdEMdemodASK(const char *Cmd) |
18 | { | |
3fe4ff4f | 19 | char cmdp = param_getchar(Cmd, 0); |
cb1ba30a | 20 | uint8_t findone = (cmdp == '1') ? 1 : 0; |
21 | UsbCommand c = {CMD_EM410X_DEMOD, {findone, 0, 0}}; | |
23f0a7d8 | 22 | SendCommand(&c); |
23 | return 0; | |
66707a3b | 24 | } |
25 | ||
7fe9b0b7 | 26 | /* Read the ID of an EM410x tag. |
27 | * Format: | |
28 | * 1111 1111 1 <-- standard non-repeatable header | |
29 | * XXXX [row parity bit] <-- 10 rows of 5 bits for our 40 bit tag ID | |
30 | * .... | |
31 | * CCCC <-- each bit here is parity for the 10 bits above in corresponding column | |
32 | * 0 <-- stop bit, end of tag | |
33 | */ | |
34 | int CmdEM410xRead(const char *Cmd) | |
35 | { | |
d216a571 | 36 | uint32_t hi = 0; |
37 | uint64_t lo = 0; | |
23f0a7d8 | 38 | |
fef74fdc | 39 | if(!AskEm410xDemod("", &hi, &lo, false)) return 0; |
d216a571 | 40 | if (hi) |
23f0a7d8 | 41 | PrintAndLog ("EM410x XL pattern found"); |
d216a571 | 42 | else |
43 | PrintAndLog("EM410x pattern found: "); | |
44 | ||
45 | printEM410x(hi, lo); | |
3c6354e9 | 46 | g_em410xid = lo; |
23f0a7d8 | 47 | return 1; |
7fe9b0b7 | 48 | } |
49 | ||
cb1ba30a | 50 | |
51 | int usage_lf_em410x_sim(void) { | |
52 | PrintAndLog("Simulating EM410x tag"); | |
53 | PrintAndLog(""); | |
6ac23014 | 54 | PrintAndLog("Usage: lf em 410xsim [h] <uid> <clock>"); |
cb1ba30a | 55 | PrintAndLog("Options:"); |
56 | PrintAndLog(" h - this help"); | |
57 | PrintAndLog(" uid - uid (10 HEX symbols)"); | |
58 | PrintAndLog(" clock - clock (32|64) (optional)"); | |
59 | PrintAndLog("samples:"); | |
6ac23014 | 60 | PrintAndLog(" lf em 410xsim 0F0368568B"); |
61 | PrintAndLog(" lf em 410xsim 0F0368568B 32"); | |
cb1ba30a | 62 | return 0; |
63 | } | |
64 | ||
13d77ef9 | 65 | // emulate an EM410X tag |
7fe9b0b7 | 66 | int CmdEM410xSim(const char *Cmd) |
67 | { | |
3fe4ff4f | 68 | int i, n, j, binary[4], parity[4]; |
3fe4ff4f | 69 | uint8_t uid[5] = {0x00}; |
70 | ||
015e3b81 | 71 | char cmdp = param_getchar(Cmd, 0); |
cb1ba30a | 72 | if (cmdp == 'h' || cmdp == 'H') return usage_lf_em410x_sim(); |
73 | ||
bca71079 | 74 | /* clock is 64 in EM410x tags */ |
75 | uint8_t clock = 64; | |
3fe4ff4f | 76 | |
77 | if (param_gethex(Cmd, 0, uid, 10)) { | |
78 | PrintAndLog("UID must include 10 HEX symbols"); | |
79 | return 0; | |
80 | } | |
cb1ba30a | 81 | |
bca71079 | 82 | param_getdec(Cmd, 1, &clock); |
3fe4ff4f | 83 | |
bca71079 | 84 | PrintAndLog("Starting simulating UID %02X%02X%02X%02X%02X clock: %d", uid[0],uid[1],uid[2],uid[3],uid[4],clock); |
3fe4ff4f | 85 | PrintAndLog("Press pm3-button to about simulation"); |
7fe9b0b7 | 86 | |
23f0a7d8 | 87 | /* clear our graph */ |
88 | ClearGraph(0); | |
89 | ||
015e3b81 | 90 | /* write 9 start bits */ |
91 | for (i = 0; i < 9; i++) | |
92 | AppendGraph(0, clock, 1); | |
93 | ||
94 | /* for each hex char */ | |
95 | parity[0] = parity[1] = parity[2] = parity[3] = 0; | |
96 | for (i = 0; i < 10; i++) | |
97 | { | |
98 | /* read each hex char */ | |
99 | sscanf(&Cmd[i], "%1x", &n); | |
100 | for (j = 3; j >= 0; j--, n/= 2) | |
101 | binary[j] = n % 2; | |
102 | ||
103 | /* append each bit */ | |
104 | AppendGraph(0, clock, binary[0]); | |
105 | AppendGraph(0, clock, binary[1]); | |
106 | AppendGraph(0, clock, binary[2]); | |
107 | AppendGraph(0, clock, binary[3]); | |
108 | ||
109 | /* append parity bit */ | |
110 | AppendGraph(0, clock, binary[0] ^ binary[1] ^ binary[2] ^ binary[3]); | |
111 | ||
112 | /* keep track of column parity */ | |
113 | parity[0] ^= binary[0]; | |
114 | parity[1] ^= binary[1]; | |
115 | parity[2] ^= binary[2]; | |
116 | parity[3] ^= binary[3]; | |
117 | } | |
23f0a7d8 | 118 | |
015e3b81 | 119 | /* parity columns */ |
120 | AppendGraph(0, clock, parity[0]); | |
121 | AppendGraph(0, clock, parity[1]); | |
122 | AppendGraph(0, clock, parity[2]); | |
123 | AppendGraph(0, clock, parity[3]); | |
23f0a7d8 | 124 | |
015e3b81 | 125 | /* stop bit */ |
23f0a7d8 | 126 | AppendGraph(1, clock, 0); |
3fe4ff4f | 127 | |
23f0a7d8 | 128 | CmdLFSim("0"); //240 start_gap. |
129 | return 0; | |
7fe9b0b7 | 130 | } |
131 | ||
3fe4ff4f | 132 | /* Function is equivalent of lf read + data samples + em410xread |
133 | * looped until an EM410x tag is detected | |
134 | * | |
135 | * Why is CmdSamples("16000")? | |
136 | * TBD: Auto-grow sample size based on detected sample rate. IE: If the | |
137 | * rate gets lower, then grow the number of samples | |
138 | * Changed by martin, 4000 x 4 = 16000, | |
139 | * see http://www.proxmark.org/forum/viewtopic.php?pid=7235#p7235 | |
3fe4ff4f | 140 | */ |
d216a571 | 141 | int CmdEM410xWatch(const char *Cmd) { |
3fe4ff4f | 142 | do { |
143 | if (ukbhit()) { | |
144 | printf("\naborted via keyboard!\n"); | |
145 | break; | |
d216a571 | 146 | } |
1fbf8956 | 147 | CmdLFRead("s"); |
9c624f67 | 148 | getSamples("6144",true); |
13d77ef9 | 149 | } while (!CmdEM410xRead("")); |
3fe4ff4f | 150 | return 0; |
7fe9b0b7 | 151 | } |
152 | ||
23f0a7d8 | 153 | //currently only supports manchester modulations |
3c6354e9 | 154 | // todo: helptext |
c3bfb9c7 | 155 | int CmdEM410xWatchnSpoof(const char *Cmd) |
156 | { | |
3c6354e9 | 157 | // loops if the captured ID was in XL-format. |
36d87eef | 158 | CmdEM410xWatch(Cmd); |
9c624f67 | 159 | PrintAndLog("# Replaying captured ID: %" PRIu64 , g_em410xid); |
36d87eef | 160 | CmdLFaskSim(""); |
1fbf8956 | 161 | return 0; |
c3bfb9c7 | 162 | } |
163 | ||
2d4eae76 | 164 | int CmdEM410xWrite(const char *Cmd) |
165 | { | |
6e984446 | 166 | uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value |
167 | int card = 0xFF; // invalid card value | |
8ce3e4b4 | 168 | uint32_t clock = 0; // invalid clock value |
e67b06b7 | 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 | |
e67b06b7 | 193 | // Default: 64 |
8ce3e4b4 | 194 | if (clock == 0) |
195 | clock = 64; | |
e67b06b7 | 196 | |
bca71079 | 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); | |
e67b06b7 | 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 | |
bca71079 | 209 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); |
210 | } else if (card == 0) { | |
e67b06b7 | 211 | PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock); |
bca71079 | 212 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); |
213 | } else { | |
e67b06b7 | 214 | PrintAndLog("Error! Bad card type selected.\n"); |
215 | return 0; | |
216 | } | |
2d4eae76 | 217 | |
6e984446 | 218 | UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}}; |
219 | SendCommand(&c); | |
6e984446 | 220 | return 0; |
221 | } | |
2d4eae76 | 222 | |
23f0a7d8 | 223 | bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) |
224 | { | |
9932c55a | 225 | if (rows*cols>size) return FALSE; |
23f0a7d8 | 226 | uint8_t colP=0; |
cc15a118 | 227 | //assume last col is a parity and do not test |
23f0a7d8 | 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 | } | |
9932c55a | 232 | if (colP != pType) return FALSE; |
23f0a7d8 | 233 | } |
9932c55a | 234 | return TRUE; |
23f0a7d8 | 235 | } |
236 | ||
237 | bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) | |
238 | { | |
9932c55a | 239 | if (rows*cols>size) return FALSE; |
23f0a7d8 | 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 | } | |
9932c55a | 246 | if (rowP != pType) return FALSE; |
247 | } | |
248 | return TRUE; | |
249 | } | |
250 | ||
251 | // EM word parity test. | |
252 | // 9*5 = 45 bits in total | |
253 | // 012345678|r1 | |
254 | // 012345678|r2 | |
255 | // 012345678|r3 | |
256 | // 012345678|r4 | |
257 | // ------------ | |
258 | //c012345678| 0 | |
259 | // |- must be zero | |
260 | ||
261 | bool EMwordparitytest(uint8_t *bits){ | |
262 | ||
263 | // last row/col parity must be 0 | |
264 | if (bits[44] != 0 ) return FALSE; | |
265 | ||
266 | // col parity check | |
267 | uint8_t c1 = bytebits_to_byte(bits, 8) ^ bytebits_to_byte(bits+9, 8) ^ bytebits_to_byte(bits+18, 8) ^ bytebits_to_byte(bits+27, 8); | |
268 | uint8_t c2 = bytebits_to_byte(bits+36, 8); | |
269 | if ( c1 != c2 ) return FALSE; | |
270 | ||
271 | // row parity check | |
272 | uint8_t rowP = 0; | |
273 | for ( uint8_t i = 0; i < 36; ++i ) { | |
274 | ||
275 | rowP ^= bits[i]; | |
276 | if ( i>0 && (i % 9) == 0) { | |
277 | ||
278 | if ( rowP != EVEN ) | |
279 | return FALSE; | |
280 | ||
281 | rowP = 0; | |
282 | } | |
23f0a7d8 | 283 | } |
9932c55a | 284 | // all checks ok. |
285 | return TRUE; | |
23f0a7d8 | 286 | } |
287 | ||
4ac9f078 | 288 | |
289 | //////////////// 4050 / 4450 commands | |
290 | int usage_lf_em4x50_dump(void) { | |
291 | PrintAndLog("Dump EM4x50/EM4x69. Tag must be on antenna. "); | |
292 | PrintAndLog(""); | |
293 | PrintAndLog("Usage: lf em 4x50dump [h] <pwd>"); | |
294 | PrintAndLog("Options:"); | |
295 | PrintAndLog(" h - this help"); | |
296 | PrintAndLog(" pwd - password (hex) (optional)"); | |
297 | PrintAndLog("samples:"); | |
298 | PrintAndLog(" lf em 4x50dump"); | |
299 | PrintAndLog(" lf em 4x50dump 11223344"); | |
300 | return 0; | |
301 | } | |
302 | int usage_lf_em4x50_read(void) { | |
303 | PrintAndLog("Read EM 4x50/EM4x69. Tag must be on antenna. "); | |
304 | PrintAndLog(""); | |
305 | PrintAndLog("Usage: lf em 4x50read [h] <address> <pwd>"); | |
306 | PrintAndLog("Options:"); | |
307 | PrintAndLog(" h - this help"); | |
308 | PrintAndLog(" address - memory address to read. (0-15)"); | |
309 | PrintAndLog(" pwd - password (hex) (optional)"); | |
310 | PrintAndLog("samples:"); | |
311 | PrintAndLog(" lf em 4x50read 1"); | |
312 | PrintAndLog(" lf em 4x50read 1 11223344"); | |
313 | return 0; | |
314 | } | |
315 | int usage_lf_em4x50_write(void) { | |
316 | PrintAndLog("Write EM 4x50/4x69. Tag must be on antenna. "); | |
317 | PrintAndLog(""); | |
318 | PrintAndLog("Usage: lf em 4x50write [h] <address> <data> <pwd>"); | |
319 | PrintAndLog("Options:"); | |
320 | PrintAndLog(" h - this help"); | |
321 | PrintAndLog(" address - memory address to write to. (0-15)"); | |
322 | PrintAndLog(" data - data to write (hex)"); | |
323 | PrintAndLog(" pwd - password (hex) (optional)"); | |
324 | PrintAndLog("samples:"); | |
325 | PrintAndLog(" lf em 4x50write 1 deadc0de"); | |
326 | PrintAndLog(" lf em 4x50write 1 deadc0de 11223344"); | |
327 | return 0; | |
328 | } | |
329 | ||
23f0a7d8 | 330 | uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest) |
331 | { | |
332 | if (size<45) return 0; | |
cb1ba30a | 333 | |
23f0a7d8 | 334 | uint32_t code = bytebits_to_byte(BitStream,8); |
335 | code = code<<8 | bytebits_to_byte(BitStream+9,8); | |
336 | code = code<<8 | bytebits_to_byte(BitStream+18,8); | |
337 | code = code<<8 | bytebits_to_byte(BitStream+27,8); | |
cb1ba30a | 338 | |
23f0a7d8 | 339 | if (verbose || g_debugMode){ |
340 | for (uint8_t i = 0; i<5; i++){ | |
cc15a118 | 341 | if (i == 4) PrintAndLog(""); //parity byte spacer |
23f0a7d8 | 342 | PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x", |
343 | BitStream[i*9], | |
344 | BitStream[i*9+1], | |
345 | BitStream[i*9+2], | |
346 | BitStream[i*9+3], | |
347 | BitStream[i*9+4], | |
348 | BitStream[i*9+5], | |
349 | BitStream[i*9+6], | |
350 | BitStream[i*9+7], | |
351 | BitStream[i*9+8], | |
352 | bytebits_to_byte(BitStream+i*9,8) | |
353 | ); | |
354 | } | |
355 | if (pTest) | |
356 | PrintAndLog("Parity Passed"); | |
357 | else | |
358 | PrintAndLog("Parity Failed"); | |
359 | } | |
23f0a7d8 | 360 | return code; |
361 | } | |
4ac9f078 | 362 | |
363 | ||
ff9c043d | 364 | /* Read the transmitted data of an EM4x50 tag from the graphbuffer |
7fe9b0b7 | 365 | * Format: |
366 | * | |
367 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
368 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
369 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
370 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
371 | * CCCCCCCC <- column parity bits | |
372 | * 0 <- stop bit | |
373 | * LW <- Listen Window | |
374 | * | |
375 | * This pattern repeats for every block of data being transmitted. | |
376 | * Transmission starts with two Listen Windows (LW - a modulated | |
377 | * pattern of 320 cycles each (32/32/128/64/64)). | |
378 | * | |
379 | * Note that this data may or may not be the UID. It is whatever data | |
380 | * is stored in the blocks defined in the control word First and Last | |
381 | * Word Read values. UID is stored in block 32. | |
382 | */ | |
cc15a118 | 383 | //completed by Marshmellow |
4ac9f078 | 384 | int EM4x50Read(const char *Cmd, bool verbose) { |
cc15a118 | 385 | uint8_t fndClk[] = {8,16,32,40,50,64,128}; |
23f0a7d8 | 386 | int clk = 0; |
387 | int invert = 0; | |
23f0a7d8 | 388 | int tol = 0; |
389 | int i, j, startblock, skip, block, start, end, low, high, minClk; | |
cc15a118 | 390 | bool complete = false; |
23f0a7d8 | 391 | int tmpbuff[MAX_GRAPH_TRACE_LEN / 64]; |
23f0a7d8 | 392 | uint32_t Code[6]; |
393 | char tmp[6]; | |
23f0a7d8 | 394 | char tmp2[20]; |
49bbc60a | 395 | int phaseoff; |
cc15a118 | 396 | high = low = 0; |
23f0a7d8 | 397 | memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64); |
cc15a118 | 398 | |
399 | // get user entry if any | |
400 | sscanf(Cmd, "%i %i", &clk, &invert); | |
401 | ||
402 | // save GraphBuffer - to restore it later | |
403 | save_restoreGB(1); | |
404 | ||
23f0a7d8 | 405 | // first get high and low values |
cc15a118 | 406 | for (i = 0; i < GraphTraceLen; i++) { |
23f0a7d8 | 407 | if (GraphBuffer[i] > high) |
408 | high = GraphBuffer[i]; | |
409 | else if (GraphBuffer[i] < low) | |
410 | low = GraphBuffer[i]; | |
411 | } | |
412 | ||
cc15a118 | 413 | i = 0; |
414 | j = 0; | |
415 | minClk = 255; | |
416 | // get to first full low to prime loop and skip incomplete first pulse | |
417 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) | |
418 | ++i; | |
419 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) | |
420 | ++i; | |
421 | skip = i; | |
422 | ||
423 | // populate tmpbuff buffer with pulse lengths | |
424 | while (i < GraphTraceLen) { | |
23f0a7d8 | 425 | // measure from low to low |
cc15a118 | 426 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) |
23f0a7d8 | 427 | ++i; |
428 | start= i; | |
cc15a118 | 429 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) |
23f0a7d8 | 430 | ++i; |
cc15a118 | 431 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) |
23f0a7d8 | 432 | ++i; |
433 | if (j>=(MAX_GRAPH_TRACE_LEN/64)) { | |
434 | break; | |
435 | } | |
436 | tmpbuff[j++]= i - start; | |
cc15a118 | 437 | if (i-start < minClk && i < GraphTraceLen) { |
438 | minClk = i - start; | |
439 | } | |
23f0a7d8 | 440 | } |
441 | // set clock | |
cc15a118 | 442 | if (!clk) { |
23f0a7d8 | 443 | for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) { |
444 | tol = fndClk[clkCnt]/8; | |
cc15a118 | 445 | if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) { |
23f0a7d8 | 446 | clk=fndClk[clkCnt]; |
447 | break; | |
448 | } | |
449 | } | |
cb1ba30a | 450 | if (!clk) { |
451 | PrintAndLog("ERROR: EM4x50 - didn't find a clock"); | |
452 | return 0; | |
453 | } | |
6e984446 | 454 | } else tol = clk/8; |
23f0a7d8 | 455 | |
456 | // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2) | |
cc15a118 | 457 | start = -1; |
458 | for (i= 0; i < j - 4 ; ++i) { | |
23f0a7d8 | 459 | skip += tmpbuff[i]; |
cc15a118 | 460 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks |
461 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
462 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
463 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
23f0a7d8 | 464 | { |
465 | start= i + 4; | |
466 | break; | |
467 | } | |
468 | } | |
cc15a118 | 469 | startblock = i + 4; |
23f0a7d8 | 470 | |
471 | // skip over the remainder of LW | |
49bbc60a | 472 | skip += tmpbuff[i+1] + tmpbuff[i+2] + clk; |
473 | if (tmpbuff[i+3]>clk) | |
474 | phaseoff = tmpbuff[i+3]-clk; | |
475 | else | |
476 | phaseoff = 0; | |
23f0a7d8 | 477 | // now do it again to find the end |
478 | end = skip; | |
cc15a118 | 479 | for (i += 3; i < j - 4 ; ++i) { |
23f0a7d8 | 480 | end += tmpbuff[i]; |
cc15a118 | 481 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks |
482 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
483 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
484 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
23f0a7d8 | 485 | { |
486 | complete= true; | |
487 | break; | |
488 | } | |
489 | } | |
490 | end = i; | |
491 | // report back | |
492 | if (verbose || g_debugMode) { | |
493 | if (start >= 0) { | |
cc15a118 | 494 | PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)"); |
23f0a7d8 | 495 | } else { |
cc15a118 | 496 | PrintAndLog("No data found!, clock tried:%d",clk); |
23f0a7d8 | 497 | PrintAndLog("Try again with more samples."); |
cc15a118 | 498 | PrintAndLog(" or after a 'data askedge' command to clean up the read"); |
23f0a7d8 | 499 | return 0; |
500 | } | |
23f0a7d8 | 501 | } else if (start < 0) return 0; |
cc15a118 | 502 | start = skip; |
23f0a7d8 | 503 | snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47); |
504 | // get rid of leading crap | |
cc15a118 | 505 | snprintf(tmp, sizeof(tmp), "%i", skip); |
23f0a7d8 | 506 | CmdLtrim(tmp); |
507 | bool pTest; | |
cc15a118 | 508 | bool AllPTest = true; |
23f0a7d8 | 509 | // now work through remaining buffer printing out data blocks |
510 | block = 0; | |
511 | i = startblock; | |
cc15a118 | 512 | while (block < 6) { |
23f0a7d8 | 513 | if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block); |
514 | skip = phaseoff; | |
515 | ||
516 | // look for LW before start of next block | |
cc15a118 | 517 | for ( ; i < j - 4 ; ++i) { |
23f0a7d8 | 518 | skip += tmpbuff[i]; |
519 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) | |
520 | if (tmpbuff[i+1] >= clk-tol) | |
521 | break; | |
522 | } | |
49bbc60a | 523 | if (i >= j-4) break; //next LW not found |
23f0a7d8 | 524 | skip += clk; |
49bbc60a | 525 | if (tmpbuff[i+1]>clk) |
526 | phaseoff = tmpbuff[i+1]-clk; | |
527 | else | |
528 | phaseoff = 0; | |
23f0a7d8 | 529 | i += 2; |
fef74fdc | 530 | if (ASKDemod(tmp2, false, false, 1) < 1) { |
cc15a118 | 531 | save_restoreGB(0); |
532 | return 0; | |
533 | } | |
23f0a7d8 | 534 | //set DemodBufferLen to just one block |
535 | DemodBufferLen = skip/clk; | |
536 | //test parities | |
537 | pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
538 | pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
539 | AllPTest &= pTest; | |
540 | //get output | |
cc15a118 | 541 | Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest); |
542 | if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk); | |
23f0a7d8 | 543 | //skip to start of next block |
544 | snprintf(tmp,sizeof(tmp),"%i",skip); | |
545 | CmdLtrim(tmp); | |
546 | block++; | |
cc15a118 | 547 | if (i >= end) break; //in case chip doesn't output 6 blocks |
23f0a7d8 | 548 | } |
549 | //print full code: | |
550 | if (verbose || g_debugMode || AllPTest){ | |
49bbc60a | 551 | if (!complete) { |
552 | PrintAndLog("*** Warning!"); | |
553 | PrintAndLog("Partial data - no end found!"); | |
554 | PrintAndLog("Try again with more samples."); | |
555 | } | |
cc15a118 | 556 | PrintAndLog("Found data at sample: %i - using clock: %i", start, clk); |
557 | end = block; | |
558 | for (block=0; block < end; block++){ | |
23f0a7d8 | 559 | PrintAndLog("Block %d: %08x",block,Code[block]); |
560 | } | |
49bbc60a | 561 | if (AllPTest) { |
23f0a7d8 | 562 | PrintAndLog("Parities Passed"); |
49bbc60a | 563 | } else { |
23f0a7d8 | 564 | PrintAndLog("Parities Failed"); |
cc15a118 | 565 | PrintAndLog("Try cleaning the read samples with 'data askedge'"); |
49bbc60a | 566 | } |
23f0a7d8 | 567 | } |
568 | ||
569 | //restore GraphBuffer | |
570 | save_restoreGB(0); | |
571 | return (int)AllPTest; | |
572 | } | |
573 | ||
cb1ba30a | 574 | int CmdEM4x50Read(const char *Cmd) { |
4ac9f078 | 575 | uint8_t ctmp = param_getchar(Cmd, 0); |
576 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_read(); | |
23f0a7d8 | 577 | return EM4x50Read(Cmd, true); |
2d4eae76 | 578 | } |
4ac9f078 | 579 | int CmdEM4x50Write(const char *Cmd){ |
580 | uint8_t ctmp = param_getchar(Cmd, 0); | |
581 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_write(); | |
582 | PrintAndLog("no implemented yet"); | |
23f0a7d8 | 583 | return 0; |
54a942b0 | 584 | } |
4ac9f078 | 585 | int CmdEM4x50Dump(const char *Cmd){ |
586 | uint8_t ctmp = param_getchar(Cmd, 0); | |
587 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_dump(); | |
588 | PrintAndLog("no implemented yet"); | |
516dbac2 | 589 | return 0; |
590 | } | |
591 | ||
592 | #define EM_PREAMBLE_LEN 6 | |
9c624f67 | 593 | // download samples from device and copy to Graphbuffer |
516dbac2 | 594 | bool downloadSamplesEM(){ |
595 | ||
596 | // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples) | |
597 | uint8_t got[6000]; | |
598 | GetFromBigBuf(got, sizeof(got), 0); | |
599 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500) ) { | |
600 | PrintAndLog("command execution time out"); | |
601 | return FALSE; | |
602 | } | |
603 | setGraphBuf(got, sizeof(got)); | |
604 | return TRUE; | |
605 | } | |
9c624f67 | 606 | |
607 | // em_demod | |
516dbac2 | 608 | bool doPreambleSearch(size_t *startIdx){ |
609 | ||
610 | // sanity check | |
6f931855 | 611 | if ( DemodBufferLen < EM_PREAMBLE_LEN) { |
612 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 demodbuffer too small"); | |
516dbac2 | 613 | return FALSE; |
6f931855 | 614 | } |
9c624f67 | 615 | |
616 | // set size to 20 to only test first 14 positions for the preamble | |
617 | size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20; | |
516dbac2 | 618 | *startIdx = 0; |
9c624f67 | 619 | // skip first two 0 bits as they might have been missed in the demod |
620 | uint8_t preamble[EM_PREAMBLE_LEN] = {0,0,1,0,1,0}; | |
516dbac2 | 621 | |
9c624f67 | 622 | if ( !preambleSearchEx(DemodBuffer, preamble, EM_PREAMBLE_LEN, &size, startIdx, TRUE)) { |
516dbac2 | 623 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", *startIdx); |
624 | return FALSE; | |
625 | } | |
516dbac2 | 626 | return TRUE; |
f9f5f450 | 627 | } |
628 | ||
bd09006a | 629 | bool detectFSK(){ |
630 | // detect fsk clock | |
631 | if (!GetFskClock("", FALSE, FALSE)) { | |
4ac9f078 | 632 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK clock failed"); |
bd09006a | 633 | return FALSE; |
f9f5f450 | 634 | } |
bd09006a | 635 | // demod |
636 | int ans = FSKrawDemod("0 0", FALSE); | |
637 | if (!ans) { | |
4ac9f078 | 638 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK Demod failed"); |
bd09006a | 639 | return FALSE; |
62dc7d4a | 640 | } |
bd09006a | 641 | return TRUE; |
642 | } | |
643 | // PSK clocks should be easy to detect ( but difficult to demod a non-repeating pattern... ) | |
644 | bool detectPSK(){ | |
645 | int ans = GetPskClock("", FALSE, FALSE); | |
6f931855 | 646 | if (ans <= 0) { |
4ac9f078 | 647 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK clock failed"); |
bd09006a | 648 | return FALSE; |
649 | } | |
4ac9f078 | 650 | //demod |
651 | //try psk1 -- 0 0 6 (six errors?!?) | |
652 | ans = PSKDemod("0 0 6", FALSE); | |
653 | if (!ans) { | |
654 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 Demod failed"); | |
655 | ||
656 | //try psk1 inverted | |
657 | ans = PSKDemod("0 1 6", FALSE); | |
658 | if (!ans) { | |
659 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 inverted Demod failed"); | |
660 | return FALSE; | |
661 | } | |
662 | } | |
663 | // either PSK1 or PSK1 inverted is ok from here. | |
664 | // lets check PSK2 later. | |
bd09006a | 665 | return TRUE; |
666 | } | |
667 | // try manchester - NOTE: ST only applies to T55x7 tags. | |
668 | bool detectASK_MAN(){ | |
669 | bool stcheck = FALSE; | |
6f931855 | 670 | int ans = ASKDemod_ext("0 0 0", FALSE, FALSE, 1, &stcheck); |
bd09006a | 671 | if (!ans) { |
4ac9f078 | 672 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/Manchester Demod failed"); |
bd09006a | 673 | return FALSE; |
674 | } | |
675 | return TRUE; | |
676 | } | |
677 | bool detectASK_BI(){ | |
678 | int ans = ASKbiphaseDemod("0 0 1", FALSE); | |
679 | if (!ans) { | |
4ac9f078 | 680 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase normal demod failed"); |
bd09006a | 681 | |
682 | ans = ASKbiphaseDemod("0 1 1", FALSE); | |
62dc7d4a | 683 | if (!ans) { |
4ac9f078 | 684 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase inverted demod failed"); |
bd09006a | 685 | return FALSE; |
62dc7d4a | 686 | } |
687 | } | |
bd09006a | 688 | return TRUE; |
689 | } | |
f9f5f450 | 690 | |
516dbac2 | 691 | // param: idx - start index in demoded data. |
4ac9f078 | 692 | bool setDemodBufferEM(uint32_t *word, size_t idx){ |
693 | ||
694 | //test for even parity bits. | |
9932c55a | 695 | uint8_t parity[45] = {0}; |
17a9ca0c | 696 | memcpy( parity, DemodBuffer, 45); |
9932c55a | 697 | if (!EMwordparitytest(parity) ){ |
698 | PrintAndLog("DEBUG: Error - EM Parity tests failed"); | |
699 | return FALSE; | |
700 | } | |
5215a874 | 701 | |
702 | // test for even parity bits and remove them. (leave out the end row of parities so 36 bits) | |
703 | if (!removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 36)) { | |
9c624f67 | 704 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM, failed removing parity"); |
4ac9f078 | 705 | return FALSE; |
516dbac2 | 706 | } |
5215a874 | 707 | setDemodBuf(DemodBuffer, 32, 0); |
4ac9f078 | 708 | *word = bytebits_to_byteLSBF(DemodBuffer, 32); |
9932c55a | 709 | return TRUE; |
bd09006a | 710 | } |
f9f5f450 | 711 | |
bd09006a | 712 | // FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE |
713 | // should cover 90% of known used configs | |
714 | // the rest will need to be manually demoded for now... | |
4ac9f078 | 715 | bool demodEM4x05resp(uint32_t *word) { |
716 | size_t idx = 0; | |
d216a571 | 717 | *word = 0; |
4ac9f078 | 718 | if (detectASK_MAN() && doPreambleSearch( &idx )) |
719 | return setDemodBufferEM(word, idx); | |
bd09006a | 720 | |
4ac9f078 | 721 | if (detectASK_BI() && doPreambleSearch( &idx )) |
722 | return setDemodBufferEM(word, idx); | |
bd09006a | 723 | |
4ac9f078 | 724 | if (detectFSK() && doPreambleSearch( &idx )) |
725 | return setDemodBufferEM(word, idx); | |
bd09006a | 726 | |
4ac9f078 | 727 | if (detectPSK()) { |
728 | if (doPreambleSearch( &idx )) | |
729 | return setDemodBufferEM(word, idx); | |
730 | ||
731 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
732 | if (doPreambleSearch( &idx )) | |
733 | return setDemodBufferEM(word, idx); | |
734 | } | |
735 | return FALSE; | |
736 | } | |
737 | ||
738 | //////////////// 4205 / 4305 commands | |
739 | int usage_lf_em4x05_dump(void) { | |
740 | PrintAndLog("Dump EM4x05/EM4x69. Tag must be on antenna. "); | |
741 | PrintAndLog(""); | |
742 | PrintAndLog("Usage: lf em 4x05dump [h] <pwd>"); | |
743 | PrintAndLog("Options:"); | |
744 | PrintAndLog(" h - this help"); | |
745 | PrintAndLog(" pwd - password (hex) (optional)"); | |
746 | PrintAndLog("samples:"); | |
747 | PrintAndLog(" lf em 4x05dump"); | |
748 | PrintAndLog(" lf em 4x05dump 11223344"); | |
749 | return 0; | |
750 | } | |
751 | int usage_lf_em4x05_read(void) { | |
752 | PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. "); | |
753 | PrintAndLog(""); | |
754 | PrintAndLog("Usage: lf em 4x05read [h] <address> <pwd>"); | |
755 | PrintAndLog("Options:"); | |
756 | PrintAndLog(" h - this help"); | |
757 | PrintAndLog(" address - memory address to read. (0-15)"); | |
758 | PrintAndLog(" pwd - password (hex) (optional)"); | |
759 | PrintAndLog("samples:"); | |
760 | PrintAndLog(" lf em 4x05read 1"); | |
761 | PrintAndLog(" lf em 4x05read 1 11223344"); | |
762 | return 0; | |
763 | } | |
764 | int usage_lf_em4x05_write(void) { | |
765 | PrintAndLog("Write EM4x05/4x69. Tag must be on antenna. "); | |
766 | PrintAndLog(""); | |
767 | PrintAndLog("Usage: lf em 4x05write [h] <address> <data> <pwd>"); | |
768 | PrintAndLog("Options:"); | |
769 | PrintAndLog(" h - this help"); | |
770 | PrintAndLog(" address - memory address to write to. (0-15)"); | |
771 | PrintAndLog(" data - data to write (hex)"); | |
772 | PrintAndLog(" pwd - password (hex) (optional)"); | |
773 | PrintAndLog("samples:"); | |
774 | PrintAndLog(" lf em 4x05write 1 deadc0de"); | |
775 | PrintAndLog(" lf em 4x05write 1 deadc0de 11223344"); | |
776 | return 0; | |
777 | } | |
5215a874 | 778 | int usage_lf_em4x05_info(void) { |
779 | PrintAndLog("Tag information EM4205/4305/4469//4569 tags. Tag must be on antenna."); | |
780 | PrintAndLog(""); | |
781 | PrintAndLog("Usage: lf em 4x05info [h] <pwd>"); | |
782 | PrintAndLog("Options:"); | |
783 | PrintAndLog(" h - this help"); | |
784 | PrintAndLog(" pwd - password (hex) (optional)"); | |
785 | PrintAndLog("samples:"); | |
786 | PrintAndLog(" lf em 4x05info"); | |
787 | PrintAndLog(" lf em 4x05info deadc0de"); | |
788 | return 0; | |
789 | } | |
4ac9f078 | 790 | |
d216a571 | 791 | int EM4x05ReadWord_ext(uint8_t addr, uint32_t pwd, bool usePwd, uint32_t *word) { |
792 | UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}}; | |
793 | clearCommandBuffer(); | |
794 | SendCommand(&c); | |
795 | UsbCommand resp; | |
796 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)){ | |
797 | PrintAndLog("Command timed out"); | |
798 | return -1; | |
799 | } | |
800 | if ( !downloadSamplesEM() ) { | |
801 | return -1; | |
802 | } | |
803 | int testLen = (GraphTraceLen < 1000) ? GraphTraceLen : 1000; | |
804 | if (graphJustNoise(GraphBuffer, testLen)) { | |
805 | PrintAndLog("no tag not found"); | |
806 | return -1; | |
807 | } | |
808 | return demodEM4x05resp(word); | |
809 | } | |
810 | ||
4ac9f078 | 811 | int CmdEM4x05Dump(const char *Cmd) { |
812 | uint8_t addr = 0; | |
9932c55a | 813 | uint32_t pwd = 0; |
4ac9f078 | 814 | bool usePwd = false; |
815 | uint8_t ctmp = param_getchar(Cmd, 0); | |
816 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_dump(); | |
817 | ||
818 | // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) | |
819 | pwd = param_get32ex(Cmd, 0, 1, 16); | |
bd09006a | 820 | |
5e9d59fe | 821 | if ( pwd != 1 ) |
4ac9f078 | 822 | usePwd = true; |
5e9d59fe | 823 | |
4ac9f078 | 824 | int success = 1; |
d216a571 | 825 | uint32_t word = 0; |
9932c55a | 826 | PrintAndLog("Addr | data | ascii"); |
827 | PrintAndLog("-----+--------+------"); | |
4ac9f078 | 828 | for (; addr < 16; addr++) { |
d216a571 | 829 | |
4ac9f078 | 830 | if (addr == 2) { |
831 | if (usePwd) { | |
d216a571 | 832 | PrintAndLog(" %02u | %08X", addr, pwd, word ); |
4ac9f078 | 833 | } else { |
9932c55a | 834 | PrintAndLog(" 02 | cannot read"); |
4ac9f078 | 835 | } |
836 | } else { | |
d216a571 | 837 | success &= EM4x05ReadWord_ext(addr, pwd, usePwd, &word); |
4ac9f078 | 838 | } |
839 | } | |
080e1114 | 840 | |
4ac9f078 | 841 | return success; |
f9f5f450 | 842 | } |
d216a571 | 843 | |
4ac9f078 | 844 | int CmdEM4x05Read(const char *Cmd) { |
d216a571 | 845 | uint8_t addr; |
846 | uint32_t pwd; | |
cb1ba30a | 847 | bool usePwd = false; |
848 | uint8_t ctmp = param_getchar(Cmd, 0); | |
4ac9f078 | 849 | if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_read(); |
cb1ba30a | 850 | |
d216a571 | 851 | addr = param_get8ex(Cmd, 0, 50, 10); |
852 | pwd = param_get32ex(Cmd, 1, 1, 16); | |
23f0a7d8 | 853 | |
d216a571 | 854 | if (addr > 15) { |
cb1ba30a | 855 | PrintAndLog("Address must be between 0 and 15"); |
23f0a7d8 | 856 | return 1; |
857 | } | |
d216a571 | 858 | if ( pwd == 1 ) { |
859 | PrintAndLog("Reading address %02u", addr); | |
860 | } | |
cb1ba30a | 861 | else { |
862 | usePwd = true; | |
d216a571 | 863 | PrintAndLog("Reading address %02u | password %08X", addr, pwd); |
23f0a7d8 | 864 | } |
516dbac2 | 865 | |
4ac9f078 | 866 | uint32_t word = 0; |
d216a571 | 867 | int isOk = EM4x05ReadWord_ext(addr, pwd, usePwd, &word); |
4ac9f078 | 868 | if (isOk) |
d216a571 | 869 | PrintAndLog("Address %02d | %08X - %s", addr, word, (addr > 13) ? "Lock" : ""); |
4ac9f078 | 870 | else |
d216a571 | 871 | PrintAndLog("Read Address %02d | failed",addr); |
4ac9f078 | 872 | return isOk; |
54a942b0 | 873 | } |
874 | ||
4ac9f078 | 875 | int CmdEM4x05Write(const char *Cmd) { |
cb1ba30a | 876 | uint8_t ctmp = param_getchar(Cmd, 0); |
4ac9f078 | 877 | if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_write(); |
cb1ba30a | 878 | |
516dbac2 | 879 | bool usePwd = false; |
d216a571 | 880 | uint8_t addr = 50; // default to invalid address |
881 | uint32_t data = 0; // default to blank data | |
882 | uint32_t pwd = 1; // default to blank password | |
cb1ba30a | 883 | |
d216a571 | 884 | addr = param_get8ex(Cmd, 0, 50, 10); |
885 | data = param_get32ex(Cmd, 1, 0, 16); | |
886 | pwd = param_get32ex(Cmd, 2, 1, 16); | |
23f0a7d8 | 887 | |
d216a571 | 888 | if ( addr > 15 ) { |
cb1ba30a | 889 | PrintAndLog("Address must be between 0 and 15"); |
23f0a7d8 | 890 | return 1; |
891 | } | |
cb1ba30a | 892 | if ( pwd == -1 ) |
893 | PrintAndLog("Writing address %d data %08X", addr, data); | |
894 | else { | |
895 | usePwd = true; | |
896 | PrintAndLog("Writing address %d data %08X using password %08X", addr, data, pwd); | |
897 | } | |
23f0a7d8 | 898 | |
cb1ba30a | 899 | uint16_t flag = (addr << 8 ) | usePwd; |
23f0a7d8 | 900 | |
cb1ba30a | 901 | UsbCommand c = {CMD_EM4X_WRITE_WORD, {flag, data, pwd}}; |
902 | clearCommandBuffer(); | |
23f0a7d8 | 903 | SendCommand(&c); |
cb1ba30a | 904 | UsbCommand resp; |
4ac9f078 | 905 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 2000)){ |
cb1ba30a | 906 | PrintAndLog("Error occurred, device did not respond during write operation."); |
907 | return -1; | |
908 | } | |
ff9c043d | 909 | |
516dbac2 | 910 | if (!downloadSamplesEM()) |
911 | return -1; | |
912 | ||
62dc7d4a | 913 | //need 0 bits demoded (after preamble) to verify write cmd |
4ac9f078 | 914 | uint32_t dummy = 0; |
915 | int isOk = demodEM4x05resp(&dummy); | |
916 | if (isOk) | |
62dc7d4a | 917 | PrintAndLog("Write Verified"); |
5215a874 | 918 | else |
919 | PrintAndLog("Write could not be verified"); | |
4ac9f078 | 920 | return isOk; |
54a942b0 | 921 | } |
922 | ||
5215a874 | 923 | void printEM4x05config(uint32_t wordData) { |
924 | uint16_t datarate = (((wordData & 0x3F)+1)*2); | |
925 | uint8_t encoder = ((wordData >> 6) & 0xF); | |
926 | char enc[14]; | |
927 | memset(enc,0,sizeof(enc)); | |
928 | ||
929 | uint8_t PSKcf = (wordData >> 10) & 0x3; | |
930 | char cf[10]; | |
931 | memset(cf,0,sizeof(cf)); | |
932 | uint8_t delay = (wordData >> 12) & 0x3; | |
933 | char cdelay[33]; | |
934 | memset(cdelay,0,sizeof(cdelay)); | |
935 | uint8_t LWR = (wordData >> 14) & 0xF; //last word read | |
936 | ||
937 | switch (encoder) { | |
938 | case 0: snprintf(enc,sizeof(enc),"NRZ"); break; | |
939 | case 1: snprintf(enc,sizeof(enc),"Manchester"); break; | |
940 | case 2: snprintf(enc,sizeof(enc),"Biphase"); break; | |
941 | case 3: snprintf(enc,sizeof(enc),"Miller"); break; | |
942 | case 4: snprintf(enc,sizeof(enc),"PSK1"); break; | |
943 | case 5: snprintf(enc,sizeof(enc),"PSK2"); break; | |
944 | case 6: snprintf(enc,sizeof(enc),"PSK3"); break; | |
945 | case 7: snprintf(enc,sizeof(enc),"Unknown"); break; | |
946 | case 8: snprintf(enc,sizeof(enc),"FSK1"); break; | |
947 | case 9: snprintf(enc,sizeof(enc),"FSK2"); break; | |
948 | default: snprintf(enc,sizeof(enc),"Unknown"); break; | |
949 | } | |
950 | ||
951 | switch (PSKcf) { | |
952 | case 0: snprintf(cf,sizeof(cf),"RF/2"); break; | |
953 | case 1: snprintf(cf,sizeof(cf),"RF/8"); break; | |
954 | case 2: snprintf(cf,sizeof(cf),"RF/4"); break; | |
955 | case 3: snprintf(cf,sizeof(cf),"unknown"); break; | |
956 | } | |
957 | ||
958 | switch (delay) { | |
959 | case 0: snprintf(cdelay, sizeof(cdelay),"no delay"); break; | |
960 | case 1: snprintf(cdelay, sizeof(cdelay),"BP/8 or 1/8th bit period delay"); break; | |
961 | case 2: snprintf(cdelay, sizeof(cdelay),"BP/4 or 1/4th bit period delay"); break; | |
962 | case 3: snprintf(cdelay, sizeof(cdelay),"no delay"); break; | |
963 | } | |
964 | PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData); | |
965 | PrintAndLog("Config Breakdown:", wordData); | |
966 | PrintAndLog(" Data Rate: %02u | RF/%u", wordData & 0x3F, datarate); | |
967 | PrintAndLog(" Encoder: %u | %s", encoder, enc); | |
968 | PrintAndLog(" PSK CF: %u | %s", PSKcf, cf); | |
969 | PrintAndLog(" Delay: %u | %s", delay, cdelay); | |
970 | PrintAndLog(" LastWordR: %02u | Address of last word for default read", LWR); | |
971 | PrintAndLog(" ReadLogin: %u | Read Login is %s", (wordData & 0x40000)>>18, (wordData & 0x40000) ? "Required" : "Not Required"); | |
972 | PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", (wordData & 0x80000)>>19, (wordData & 0x80000) ? "Required" : "Not Required"); | |
973 | PrintAndLog("WriteLogin: %u | Write Login is %s", (wordData & 0x100000)>>20, (wordData & 0x100000) ? "Required" : "Not Required"); | |
974 | PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", (wordData & 0x200000)>>21, (wordData & 0x200000) ? "Required" : "Not Required"); | |
975 | PrintAndLog(" R.A.W.: %u | Read After Write is %s", (wordData & 0x400000)>>22, (wordData & 0x400000) ? "On" : "Off"); | |
976 | PrintAndLog(" Disable: %u | Disable Command is %s", (wordData & 0x800000)>>23, (wordData & 0x800000) ? "Accepted" : "Not Accepted"); | |
977 | PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", (wordData & 0x1000000)>>24, (wordData & 0x1000000) ? "Enabled" : "Disabled"); | |
978 | PrintAndLog(" Pigeon: %u | Pigeon Mode is %s\n", (wordData & 0x4000000)>>26, (wordData & 0x4000000) ? "Enabled" : "Disabled"); | |
979 | } | |
980 | ||
d216a571 | 981 | void printEM4x05info(uint32_t block0, uint32_t serial) { |
982 | ||
983 | uint8_t chipType = (block0 >> 1) & 0xF; | |
984 | uint8_t cap = (block0 >> 5) & 3; | |
985 | uint16_t custCode = (block0 >> 9) & 0x3FF; | |
986 | ||
5215a874 | 987 | switch (chipType) { |
d216a571 | 988 | case 9: PrintAndLog("\n Chip Type: %u | EM4305", chipType); break; |
989 | case 4: PrintAndLog(" Chip Type: %u | Unknown", chipType); break; | |
990 | case 2: PrintAndLog(" Chip Type: %u | EM4469", chipType); break; | |
5215a874 | 991 | //add more here when known |
992 | default: PrintAndLog(" Chip Type: %u Unknown", chipType); break; | |
993 | } | |
994 | ||
995 | switch (cap) { | |
d216a571 | 996 | case 3: PrintAndLog(" Cap Type: %u | 330pF",cap); break; |
997 | case 2: PrintAndLog(" Cap Type: %u | %spF",cap, (chipType==2)? "75":"210"); break; | |
998 | case 1: PrintAndLog(" Cap Type: %u | 250pF",cap); break; | |
999 | case 0: PrintAndLog(" Cap Type: %u | no resonant capacitor",cap); break; | |
5215a874 | 1000 | default: PrintAndLog(" Cap Type: %u | unknown",cap); break; |
1001 | } | |
1002 | ||
1003 | PrintAndLog(" Cust Code: %03u | %s", custCode, (custCode == 0x200) ? "Default": "Unknown"); | |
d216a571 | 1004 | if (serial != 0) |
5215a874 | 1005 | PrintAndLog("\n Serial #: %08X\n", serial); |
5215a874 | 1006 | } |
1007 | ||
d216a571 | 1008 | void printEM4x05ProtectionBits(uint32_t word) { |
5215a874 | 1009 | for (uint8_t i = 0; i < 15; i++) { |
d216a571 | 1010 | PrintAndLog(" Word: %02u | %s", i, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); |
1011 | if (i==14) | |
1012 | PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & word ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); | |
5215a874 | 1013 | } |
1014 | } | |
1015 | ||
1016 | //quick test for EM4x05/EM4x69 tag | |
d216a571 | 1017 | bool EM4x05IsBlock0(uint32_t *word) { |
1018 | return EM4x05ReadWord_ext(0, 0, FALSE, word); | |
5215a874 | 1019 | } |
1020 | ||
1021 | int CmdEM4x05Info(const char *Cmd) { | |
d216a571 | 1022 | #define EM_SERIAL_BLOCK 1 |
1023 | #define EM_CONFIG_BLOCK 4 | |
1024 | #define EM_PROT1_BLOCK 14 | |
1025 | #define EM_PROT2_BLOCK 15 | |
5215a874 | 1026 | uint32_t pwd; |
d216a571 | 1027 | uint32_t word = 0, block0 = 0, serial = 0; |
5215a874 | 1028 | bool usePwd = false; |
1029 | uint8_t ctmp = param_getchar(Cmd, 0); | |
1030 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_info(); | |
1031 | ||
1032 | // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) | |
1033 | pwd = param_get32ex(Cmd, 0, 1, 16); | |
1034 | ||
1035 | if ( pwd != 1 ) | |
1036 | usePwd = true; | |
1037 | ||
1038 | // read word 0 (chip info) | |
1039 | // block 0 can be read even without a password. | |
d216a571 | 1040 | if ( !EM4x05IsBlock0(&block0) ) |
5215a874 | 1041 | return -1; |
1042 | ||
5215a874 | 1043 | // read word 1 (serial #) doesn't need pwd |
d216a571 | 1044 | // continue if failed, .. non blocking fail. |
1045 | EM4x05ReadWord_ext(EM_SERIAL_BLOCK, 0, false, &serial); | |
1046 | printEM4x05info(block0, serial); | |
5215a874 | 1047 | |
1048 | // read word 4 (config block) | |
1049 | // needs password if one is set | |
d216a571 | 1050 | if ( EM4x05ReadWord_ext(EM_CONFIG_BLOCK, pwd, usePwd, &word) != 1 ) |
5215a874 | 1051 | return 0; |
1052 | ||
d216a571 | 1053 | printEM4x05config(word); |
5215a874 | 1054 | |
1055 | // read word 14 and 15 to see which is being used for the protection bits | |
d216a571 | 1056 | if ( EM4x05ReadWord_ext(EM_PROT1_BLOCK, pwd, usePwd, &word) != 1 ) { |
5215a874 | 1057 | return 0; |
1058 | } | |
1059 | // if status bit says this is not the used protection word | |
d216a571 | 1060 | if (!(word & 0x8000)) { |
1061 | if ( EM4x05ReadWord_ext(EM_PROT2_BLOCK, pwd, usePwd, &word) != 1 ) | |
5215a874 | 1062 | return 0; |
5215a874 | 1063 | } |
d216a571 | 1064 | //something went wrong |
1065 | if (!(word & 0x8000)) return 0; | |
1066 | printEM4x05ProtectionBits(word); | |
5215a874 | 1067 | return 1; |
1068 | } | |
1069 | ||
cb1ba30a | 1070 | static command_t CommandTable[] = { |
1071 | {"help", CmdHelp, 1, "This help"}, | |
4ac9f078 | 1072 | {"410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, |
1073 | {"410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"}, | |
6ac23014 | 1074 | {"410xsim", CmdEM410xSim, 0, "simulate EM410x tag"}, |
4ac9f078 | 1075 | {"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, |
1076 | {"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, | |
1077 | {"410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, | |
5215a874 | 1078 | {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"}, |
6ac23014 | 1079 | {"4x05info", CmdEM4x05Info, 0, "tag information EM4x05/EM4x69"}, |
4ac9f078 | 1080 | {"4x05read", CmdEM4x05Read, 0, "read word data from EM4205/4305"}, |
1081 | {"4x05write", CmdEM4x05Write, 0, "write word data to EM4205/4305"}, | |
4ac9f078 | 1082 | {"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"}, |
1083 | {"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"}, | |
1084 | {"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"}, | |
23f0a7d8 | 1085 | {NULL, NULL, 0, NULL} |
7fe9b0b7 | 1086 | }; |
1087 | ||
4c36581b | 1088 | int CmdLFEM4X(const char *Cmd) { |
1089 | clearCommandBuffer(); | |
23f0a7d8 | 1090 | CmdsParse(CommandTable, Cmd); |
1091 | return 0; | |
7fe9b0b7 | 1092 | } |
1093 | ||
4c36581b | 1094 | int CmdHelp(const char *Cmd) { |
23f0a7d8 | 1095 | CmdsHelp(CommandTable); |
1096 | return 0; | |
7fe9b0b7 | 1097 | } |