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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 | { | |
23f0a7d8 | 36 | uint32_t hi=0; |
37 | uint64_t lo=0; | |
38 | ||
fef74fdc | 39 | if(!AskEm410xDemod("", &hi, &lo, false)) return 0; |
23f0a7d8 | 40 | PrintAndLog("EM410x pattern found: "); |
41 | printEM410x(hi, lo); | |
42 | if (hi){ | |
43 | PrintAndLog ("EM410x XL pattern found"); | |
44 | return 0; | |
45 | } | |
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(""); | |
54 | PrintAndLog("Usage: lf em4x em410xsim [h] <uid> <clock>"); | |
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:"); | |
60 | PrintAndLog(" lf em4x em410xsim 0F0368568B"); | |
61 | PrintAndLog(" lf em4x em410xsim 0F0368568B 32"); | |
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 | */ |
7fe9b0b7 | 141 | int CmdEM410xWatch(const char *Cmd) |
142 | { | |
3fe4ff4f | 143 | do { |
144 | if (ukbhit()) { | |
145 | printf("\naborted via keyboard!\n"); | |
146 | break; | |
147 | } | |
148 | ||
1fbf8956 | 149 | CmdLFRead("s"); |
9c624f67 | 150 | //getSamples("8201",true); //capture enough to get 2 complete preambles (4096*2+9) |
151 | getSamples("6144",true); | |
13d77ef9 | 152 | } while (!CmdEM410xRead("")); |
153 | ||
3fe4ff4f | 154 | return 0; |
7fe9b0b7 | 155 | } |
156 | ||
23f0a7d8 | 157 | //currently only supports manchester modulations |
3c6354e9 | 158 | // todo: helptext |
c3bfb9c7 | 159 | int CmdEM410xWatchnSpoof(const char *Cmd) |
160 | { | |
3c6354e9 | 161 | // loops if the captured ID was in XL-format. |
36d87eef | 162 | CmdEM410xWatch(Cmd); |
9c624f67 | 163 | PrintAndLog("# Replaying captured ID: %" PRIu64 , g_em410xid); |
36d87eef | 164 | CmdLFaskSim(""); |
1fbf8956 | 165 | return 0; |
c3bfb9c7 | 166 | } |
167 | ||
2d4eae76 | 168 | int CmdEM410xWrite(const char *Cmd) |
169 | { | |
6e984446 | 170 | uint64_t id = 0xFFFFFFFFFFFFFFFF; // invalid id value |
171 | int card = 0xFF; // invalid card value | |
8ce3e4b4 | 172 | uint32_t clock = 0; // invalid clock value |
e67b06b7 | 173 | |
174 | sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock); | |
175 | ||
176 | // Check ID | |
177 | if (id == 0xFFFFFFFFFFFFFFFF) { | |
178 | PrintAndLog("Error! ID is required.\n"); | |
179 | return 0; | |
180 | } | |
181 | if (id >= 0x10000000000) { | |
182 | PrintAndLog("Error! Given EM410x ID is longer than 40 bits.\n"); | |
183 | return 0; | |
184 | } | |
185 | ||
186 | // Check Card | |
187 | if (card == 0xFF) { | |
188 | PrintAndLog("Error! Card type required.\n"); | |
189 | return 0; | |
190 | } | |
191 | if (card < 0) { | |
192 | PrintAndLog("Error! Bad card type selected.\n"); | |
193 | return 0; | |
194 | } | |
195 | ||
196 | // Check Clock | |
e67b06b7 | 197 | // Default: 64 |
8ce3e4b4 | 198 | if (clock == 0) |
199 | clock = 64; | |
e67b06b7 | 200 | |
bca71079 | 201 | // Allowed clock rates: 16, 32, 40 and 64 |
202 | if ((clock != 16) && (clock != 32) && (clock != 64) && (clock != 40)) { | |
203 | PrintAndLog("Error! Clock rate %d not valid. Supported clock rates are 16, 32, 40 and 64.\n", clock); | |
e67b06b7 | 204 | return 0; |
205 | } | |
206 | ||
207 | if (card == 1) { | |
208 | PrintAndLog("Writing %s tag with UID 0x%010" PRIx64 " (clock rate: %d)", "T55x7", id, clock); | |
209 | // NOTE: We really should pass the clock in as a separate argument, but to | |
210 | // provide for backwards-compatibility for older firmware, and to avoid | |
211 | // having to add another argument to CMD_EM410X_WRITE_TAG, we just store | |
212 | // the clock rate in bits 8-15 of the card value | |
bca71079 | 213 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); |
214 | } else if (card == 0) { | |
e67b06b7 | 215 | PrintAndLog("Writing %s tag with UID 0x%010" PRIx64, "T5555", id, clock); |
bca71079 | 216 | card = (card & 0xFF) | ((clock << 8) & 0xFF00); |
217 | } else { | |
e67b06b7 | 218 | PrintAndLog("Error! Bad card type selected.\n"); |
219 | return 0; | |
220 | } | |
2d4eae76 | 221 | |
6e984446 | 222 | UsbCommand c = {CMD_EM410X_WRITE_TAG, {card, (uint32_t)(id >> 32), (uint32_t)id}}; |
223 | SendCommand(&c); | |
6e984446 | 224 | return 0; |
225 | } | |
2d4eae76 | 226 | |
23f0a7d8 | 227 | bool EM_EndParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) |
228 | { | |
9932c55a | 229 | if (rows*cols>size) return FALSE; |
23f0a7d8 | 230 | uint8_t colP=0; |
cc15a118 | 231 | //assume last col is a parity and do not test |
23f0a7d8 | 232 | for (uint8_t colNum = 0; colNum < cols-1; colNum++) { |
233 | for (uint8_t rowNum = 0; rowNum < rows; rowNum++) { | |
234 | colP ^= BitStream[(rowNum*cols)+colNum]; | |
235 | } | |
9932c55a | 236 | if (colP != pType) return FALSE; |
23f0a7d8 | 237 | } |
9932c55a | 238 | return TRUE; |
23f0a7d8 | 239 | } |
240 | ||
241 | bool EM_ByteParityTest(uint8_t *BitStream, size_t size, uint8_t rows, uint8_t cols, uint8_t pType) | |
242 | { | |
9932c55a | 243 | if (rows*cols>size) return FALSE; |
23f0a7d8 | 244 | uint8_t rowP=0; |
245 | //assume last row is a parity row and do not test | |
246 | for (uint8_t rowNum = 0; rowNum < rows-1; rowNum++) { | |
247 | for (uint8_t colNum = 0; colNum < cols; colNum++) { | |
248 | rowP ^= BitStream[(rowNum*cols)+colNum]; | |
249 | } | |
9932c55a | 250 | if (rowP != pType) return FALSE; |
251 | } | |
252 | return TRUE; | |
253 | } | |
254 | ||
255 | // EM word parity test. | |
256 | // 9*5 = 45 bits in total | |
257 | // 012345678|r1 | |
258 | // 012345678|r2 | |
259 | // 012345678|r3 | |
260 | // 012345678|r4 | |
261 | // ------------ | |
262 | //c012345678| 0 | |
263 | // |- must be zero | |
264 | ||
265 | bool EMwordparitytest(uint8_t *bits){ | |
266 | ||
267 | // last row/col parity must be 0 | |
268 | if (bits[44] != 0 ) return FALSE; | |
269 | ||
270 | // col parity check | |
271 | 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); | |
272 | uint8_t c2 = bytebits_to_byte(bits+36, 8); | |
273 | if ( c1 != c2 ) return FALSE; | |
274 | ||
275 | // row parity check | |
276 | uint8_t rowP = 0; | |
277 | for ( uint8_t i = 0; i < 36; ++i ) { | |
278 | ||
279 | rowP ^= bits[i]; | |
280 | if ( i>0 && (i % 9) == 0) { | |
281 | ||
282 | if ( rowP != EVEN ) | |
283 | return FALSE; | |
284 | ||
285 | rowP = 0; | |
286 | } | |
23f0a7d8 | 287 | } |
9932c55a | 288 | // all checks ok. |
289 | return TRUE; | |
23f0a7d8 | 290 | } |
291 | ||
4ac9f078 | 292 | |
293 | //////////////// 4050 / 4450 commands | |
294 | int usage_lf_em4x50_dump(void) { | |
295 | PrintAndLog("Dump EM4x50/EM4x69. Tag must be on antenna. "); | |
296 | PrintAndLog(""); | |
297 | PrintAndLog("Usage: lf em 4x50dump [h] <pwd>"); | |
298 | PrintAndLog("Options:"); | |
299 | PrintAndLog(" h - this help"); | |
300 | PrintAndLog(" pwd - password (hex) (optional)"); | |
301 | PrintAndLog("samples:"); | |
302 | PrintAndLog(" lf em 4x50dump"); | |
303 | PrintAndLog(" lf em 4x50dump 11223344"); | |
304 | return 0; | |
305 | } | |
306 | int usage_lf_em4x50_read(void) { | |
307 | PrintAndLog("Read EM 4x50/EM4x69. Tag must be on antenna. "); | |
308 | PrintAndLog(""); | |
309 | PrintAndLog("Usage: lf em 4x50read [h] <address> <pwd>"); | |
310 | PrintAndLog("Options:"); | |
311 | PrintAndLog(" h - this help"); | |
312 | PrintAndLog(" address - memory address to read. (0-15)"); | |
313 | PrintAndLog(" pwd - password (hex) (optional)"); | |
314 | PrintAndLog("samples:"); | |
315 | PrintAndLog(" lf em 4x50read 1"); | |
316 | PrintAndLog(" lf em 4x50read 1 11223344"); | |
317 | return 0; | |
318 | } | |
319 | int usage_lf_em4x50_write(void) { | |
320 | PrintAndLog("Write EM 4x50/4x69. Tag must be on antenna. "); | |
321 | PrintAndLog(""); | |
322 | PrintAndLog("Usage: lf em 4x50write [h] <address> <data> <pwd>"); | |
323 | PrintAndLog("Options:"); | |
324 | PrintAndLog(" h - this help"); | |
325 | PrintAndLog(" address - memory address to write to. (0-15)"); | |
326 | PrintAndLog(" data - data to write (hex)"); | |
327 | PrintAndLog(" pwd - password (hex) (optional)"); | |
328 | PrintAndLog("samples:"); | |
329 | PrintAndLog(" lf em 4x50write 1 deadc0de"); | |
330 | PrintAndLog(" lf em 4x50write 1 deadc0de 11223344"); | |
331 | return 0; | |
332 | } | |
333 | ||
23f0a7d8 | 334 | uint32_t OutputEM4x50_Block(uint8_t *BitStream, size_t size, bool verbose, bool pTest) |
335 | { | |
336 | if (size<45) return 0; | |
cb1ba30a | 337 | |
23f0a7d8 | 338 | uint32_t code = bytebits_to_byte(BitStream,8); |
339 | code = code<<8 | bytebits_to_byte(BitStream+9,8); | |
340 | code = code<<8 | bytebits_to_byte(BitStream+18,8); | |
341 | code = code<<8 | bytebits_to_byte(BitStream+27,8); | |
cb1ba30a | 342 | |
23f0a7d8 | 343 | if (verbose || g_debugMode){ |
344 | for (uint8_t i = 0; i<5; i++){ | |
cc15a118 | 345 | if (i == 4) PrintAndLog(""); //parity byte spacer |
23f0a7d8 | 346 | PrintAndLog("%d%d%d%d%d%d%d%d %d -> 0x%02x", |
347 | BitStream[i*9], | |
348 | BitStream[i*9+1], | |
349 | BitStream[i*9+2], | |
350 | BitStream[i*9+3], | |
351 | BitStream[i*9+4], | |
352 | BitStream[i*9+5], | |
353 | BitStream[i*9+6], | |
354 | BitStream[i*9+7], | |
355 | BitStream[i*9+8], | |
356 | bytebits_to_byte(BitStream+i*9,8) | |
357 | ); | |
358 | } | |
359 | if (pTest) | |
360 | PrintAndLog("Parity Passed"); | |
361 | else | |
362 | PrintAndLog("Parity Failed"); | |
363 | } | |
23f0a7d8 | 364 | return code; |
365 | } | |
4ac9f078 | 366 | |
367 | ||
ff9c043d | 368 | /* Read the transmitted data of an EM4x50 tag from the graphbuffer |
7fe9b0b7 | 369 | * Format: |
370 | * | |
371 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
372 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
373 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
374 | * XXXXXXXX [row parity bit (even)] <- 8 bits plus parity | |
375 | * CCCCCCCC <- column parity bits | |
376 | * 0 <- stop bit | |
377 | * LW <- Listen Window | |
378 | * | |
379 | * This pattern repeats for every block of data being transmitted. | |
380 | * Transmission starts with two Listen Windows (LW - a modulated | |
381 | * pattern of 320 cycles each (32/32/128/64/64)). | |
382 | * | |
383 | * Note that this data may or may not be the UID. It is whatever data | |
384 | * is stored in the blocks defined in the control word First and Last | |
385 | * Word Read values. UID is stored in block 32. | |
386 | */ | |
cc15a118 | 387 | //completed by Marshmellow |
4ac9f078 | 388 | int EM4x50Read(const char *Cmd, bool verbose) { |
cc15a118 | 389 | uint8_t fndClk[] = {8,16,32,40,50,64,128}; |
23f0a7d8 | 390 | int clk = 0; |
391 | int invert = 0; | |
23f0a7d8 | 392 | int tol = 0; |
393 | int i, j, startblock, skip, block, start, end, low, high, minClk; | |
cc15a118 | 394 | bool complete = false; |
23f0a7d8 | 395 | int tmpbuff[MAX_GRAPH_TRACE_LEN / 64]; |
23f0a7d8 | 396 | uint32_t Code[6]; |
397 | char tmp[6]; | |
23f0a7d8 | 398 | char tmp2[20]; |
49bbc60a | 399 | int phaseoff; |
cc15a118 | 400 | high = low = 0; |
23f0a7d8 | 401 | memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64); |
cc15a118 | 402 | |
403 | // get user entry if any | |
404 | sscanf(Cmd, "%i %i", &clk, &invert); | |
405 | ||
406 | // save GraphBuffer - to restore it later | |
407 | save_restoreGB(1); | |
408 | ||
23f0a7d8 | 409 | // first get high and low values |
cc15a118 | 410 | for (i = 0; i < GraphTraceLen; i++) { |
23f0a7d8 | 411 | if (GraphBuffer[i] > high) |
412 | high = GraphBuffer[i]; | |
413 | else if (GraphBuffer[i] < low) | |
414 | low = GraphBuffer[i]; | |
415 | } | |
416 | ||
cc15a118 | 417 | i = 0; |
418 | j = 0; | |
419 | minClk = 255; | |
420 | // get to first full low to prime loop and skip incomplete first pulse | |
421 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) | |
422 | ++i; | |
423 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) | |
424 | ++i; | |
425 | skip = i; | |
426 | ||
427 | // populate tmpbuff buffer with pulse lengths | |
428 | while (i < GraphTraceLen) { | |
23f0a7d8 | 429 | // measure from low to low |
cc15a118 | 430 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) |
23f0a7d8 | 431 | ++i; |
432 | start= i; | |
cc15a118 | 433 | while ((GraphBuffer[i] < high) && (i < GraphTraceLen)) |
23f0a7d8 | 434 | ++i; |
cc15a118 | 435 | while ((GraphBuffer[i] > low) && (i < GraphTraceLen)) |
23f0a7d8 | 436 | ++i; |
437 | if (j>=(MAX_GRAPH_TRACE_LEN/64)) { | |
438 | break; | |
439 | } | |
440 | tmpbuff[j++]= i - start; | |
cc15a118 | 441 | if (i-start < minClk && i < GraphTraceLen) { |
442 | minClk = i - start; | |
443 | } | |
23f0a7d8 | 444 | } |
445 | // set clock | |
cc15a118 | 446 | if (!clk) { |
23f0a7d8 | 447 | for (uint8_t clkCnt = 0; clkCnt<7; clkCnt++) { |
448 | tol = fndClk[clkCnt]/8; | |
cc15a118 | 449 | if (minClk >= fndClk[clkCnt]-tol && minClk <= fndClk[clkCnt]+1) { |
23f0a7d8 | 450 | clk=fndClk[clkCnt]; |
451 | break; | |
452 | } | |
453 | } | |
cb1ba30a | 454 | if (!clk) { |
455 | PrintAndLog("ERROR: EM4x50 - didn't find a clock"); | |
456 | return 0; | |
457 | } | |
6e984446 | 458 | } else tol = clk/8; |
23f0a7d8 | 459 | |
460 | // look for data start - should be 2 pairs of LW (pulses of clk*3,clk*2) | |
cc15a118 | 461 | start = -1; |
462 | for (i= 0; i < j - 4 ; ++i) { | |
23f0a7d8 | 463 | skip += tmpbuff[i]; |
cc15a118 | 464 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks |
465 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
466 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
467 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
23f0a7d8 | 468 | { |
469 | start= i + 4; | |
470 | break; | |
471 | } | |
472 | } | |
cc15a118 | 473 | startblock = i + 4; |
23f0a7d8 | 474 | |
475 | // skip over the remainder of LW | |
49bbc60a | 476 | skip += tmpbuff[i+1] + tmpbuff[i+2] + clk; |
477 | if (tmpbuff[i+3]>clk) | |
478 | phaseoff = tmpbuff[i+3]-clk; | |
479 | else | |
480 | phaseoff = 0; | |
23f0a7d8 | 481 | // now do it again to find the end |
482 | end = skip; | |
cc15a118 | 483 | for (i += 3; i < j - 4 ; ++i) { |
23f0a7d8 | 484 | end += tmpbuff[i]; |
cc15a118 | 485 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) //3 clocks |
486 | if (tmpbuff[i+1] >= clk*2-tol && tmpbuff[i+1] <= clk*2+tol) //2 clocks | |
487 | if (tmpbuff[i+2] >= clk*3-tol && tmpbuff[i+2] <= clk*3+tol) //3 clocks | |
488 | if (tmpbuff[i+3] >= clk-tol) //1.5 to 2 clocks - depends on bit following | |
23f0a7d8 | 489 | { |
490 | complete= true; | |
491 | break; | |
492 | } | |
493 | } | |
494 | end = i; | |
495 | // report back | |
496 | if (verbose || g_debugMode) { | |
497 | if (start >= 0) { | |
cc15a118 | 498 | PrintAndLog("\nNote: one block = 50 bits (32 data, 12 parity, 6 marker)"); |
23f0a7d8 | 499 | } else { |
cc15a118 | 500 | PrintAndLog("No data found!, clock tried:%d",clk); |
23f0a7d8 | 501 | PrintAndLog("Try again with more samples."); |
cc15a118 | 502 | PrintAndLog(" or after a 'data askedge' command to clean up the read"); |
23f0a7d8 | 503 | return 0; |
504 | } | |
23f0a7d8 | 505 | } else if (start < 0) return 0; |
cc15a118 | 506 | start = skip; |
23f0a7d8 | 507 | snprintf(tmp2, sizeof(tmp2),"%d %d 1000 %d", clk, invert, clk*47); |
508 | // get rid of leading crap | |
cc15a118 | 509 | snprintf(tmp, sizeof(tmp), "%i", skip); |
23f0a7d8 | 510 | CmdLtrim(tmp); |
511 | bool pTest; | |
cc15a118 | 512 | bool AllPTest = true; |
23f0a7d8 | 513 | // now work through remaining buffer printing out data blocks |
514 | block = 0; | |
515 | i = startblock; | |
cc15a118 | 516 | while (block < 6) { |
23f0a7d8 | 517 | if (verbose || g_debugMode) PrintAndLog("\nBlock %i:", block); |
518 | skip = phaseoff; | |
519 | ||
520 | // look for LW before start of next block | |
cc15a118 | 521 | for ( ; i < j - 4 ; ++i) { |
23f0a7d8 | 522 | skip += tmpbuff[i]; |
523 | if (tmpbuff[i] >= clk*3-tol && tmpbuff[i] <= clk*3+tol) | |
524 | if (tmpbuff[i+1] >= clk-tol) | |
525 | break; | |
526 | } | |
49bbc60a | 527 | if (i >= j-4) break; //next LW not found |
23f0a7d8 | 528 | skip += clk; |
49bbc60a | 529 | if (tmpbuff[i+1]>clk) |
530 | phaseoff = tmpbuff[i+1]-clk; | |
531 | else | |
532 | phaseoff = 0; | |
23f0a7d8 | 533 | i += 2; |
fef74fdc | 534 | if (ASKDemod(tmp2, false, false, 1) < 1) { |
cc15a118 | 535 | save_restoreGB(0); |
536 | return 0; | |
537 | } | |
23f0a7d8 | 538 | //set DemodBufferLen to just one block |
539 | DemodBufferLen = skip/clk; | |
540 | //test parities | |
541 | pTest = EM_ByteParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
542 | pTest &= EM_EndParityTest(DemodBuffer,DemodBufferLen,5,9,0); | |
543 | AllPTest &= pTest; | |
544 | //get output | |
cc15a118 | 545 | Code[block] = OutputEM4x50_Block(DemodBuffer,DemodBufferLen,verbose, pTest); |
546 | if (g_debugMode) PrintAndLog("\nskipping %d samples, bits:%d", skip, skip/clk); | |
23f0a7d8 | 547 | //skip to start of next block |
548 | snprintf(tmp,sizeof(tmp),"%i",skip); | |
549 | CmdLtrim(tmp); | |
550 | block++; | |
cc15a118 | 551 | if (i >= end) break; //in case chip doesn't output 6 blocks |
23f0a7d8 | 552 | } |
553 | //print full code: | |
554 | if (verbose || g_debugMode || AllPTest){ | |
49bbc60a | 555 | if (!complete) { |
556 | PrintAndLog("*** Warning!"); | |
557 | PrintAndLog("Partial data - no end found!"); | |
558 | PrintAndLog("Try again with more samples."); | |
559 | } | |
cc15a118 | 560 | PrintAndLog("Found data at sample: %i - using clock: %i", start, clk); |
561 | end = block; | |
562 | for (block=0; block < end; block++){ | |
23f0a7d8 | 563 | PrintAndLog("Block %d: %08x",block,Code[block]); |
564 | } | |
49bbc60a | 565 | if (AllPTest) { |
23f0a7d8 | 566 | PrintAndLog("Parities Passed"); |
49bbc60a | 567 | } else { |
23f0a7d8 | 568 | PrintAndLog("Parities Failed"); |
cc15a118 | 569 | PrintAndLog("Try cleaning the read samples with 'data askedge'"); |
49bbc60a | 570 | } |
23f0a7d8 | 571 | } |
572 | ||
573 | //restore GraphBuffer | |
574 | save_restoreGB(0); | |
575 | return (int)AllPTest; | |
576 | } | |
577 | ||
cb1ba30a | 578 | int CmdEM4x50Read(const char *Cmd) { |
4ac9f078 | 579 | uint8_t ctmp = param_getchar(Cmd, 0); |
580 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_read(); | |
23f0a7d8 | 581 | return EM4x50Read(Cmd, true); |
2d4eae76 | 582 | } |
4ac9f078 | 583 | int CmdEM4x50Write(const char *Cmd){ |
584 | uint8_t ctmp = param_getchar(Cmd, 0); | |
585 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_write(); | |
586 | PrintAndLog("no implemented yet"); | |
23f0a7d8 | 587 | return 0; |
54a942b0 | 588 | } |
4ac9f078 | 589 | int CmdEM4x50Dump(const char *Cmd){ |
590 | uint8_t ctmp = param_getchar(Cmd, 0); | |
591 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x50_dump(); | |
592 | PrintAndLog("no implemented yet"); | |
516dbac2 | 593 | return 0; |
594 | } | |
595 | ||
596 | #define EM_PREAMBLE_LEN 6 | |
9c624f67 | 597 | // download samples from device and copy to Graphbuffer |
516dbac2 | 598 | bool downloadSamplesEM(){ |
599 | ||
600 | // 8 bit preamble + 32 bit word response (max clock (128) * 40bits = 5120 samples) | |
601 | uint8_t got[6000]; | |
602 | GetFromBigBuf(got, sizeof(got), 0); | |
603 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500) ) { | |
604 | PrintAndLog("command execution time out"); | |
605 | return FALSE; | |
606 | } | |
607 | setGraphBuf(got, sizeof(got)); | |
608 | return TRUE; | |
609 | } | |
9c624f67 | 610 | |
611 | // em_demod | |
516dbac2 | 612 | bool doPreambleSearch(size_t *startIdx){ |
613 | ||
614 | // sanity check | |
6f931855 | 615 | if ( DemodBufferLen < EM_PREAMBLE_LEN) { |
616 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 demodbuffer too small"); | |
516dbac2 | 617 | return FALSE; |
6f931855 | 618 | } |
9c624f67 | 619 | |
620 | // set size to 20 to only test first 14 positions for the preamble | |
621 | size_t size = (20 > DemodBufferLen) ? DemodBufferLen : 20; | |
516dbac2 | 622 | *startIdx = 0; |
9c624f67 | 623 | // skip first two 0 bits as they might have been missed in the demod |
624 | uint8_t preamble[EM_PREAMBLE_LEN] = {0,0,1,0,1,0}; | |
516dbac2 | 625 | |
9c624f67 | 626 | if ( !preambleSearchEx(DemodBuffer, preamble, EM_PREAMBLE_LEN, &size, startIdx, TRUE)) { |
516dbac2 | 627 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", *startIdx); |
628 | return FALSE; | |
629 | } | |
516dbac2 | 630 | return TRUE; |
f9f5f450 | 631 | } |
632 | ||
bd09006a | 633 | bool detectFSK(){ |
634 | // detect fsk clock | |
635 | if (!GetFskClock("", FALSE, FALSE)) { | |
4ac9f078 | 636 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK clock failed"); |
bd09006a | 637 | return FALSE; |
f9f5f450 | 638 | } |
bd09006a | 639 | // demod |
640 | int ans = FSKrawDemod("0 0", FALSE); | |
641 | if (!ans) { | |
4ac9f078 | 642 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: FSK Demod failed"); |
bd09006a | 643 | return FALSE; |
62dc7d4a | 644 | } |
bd09006a | 645 | return TRUE; |
646 | } | |
647 | // PSK clocks should be easy to detect ( but difficult to demod a non-repeating pattern... ) | |
648 | bool detectPSK(){ | |
649 | int ans = GetPskClock("", FALSE, FALSE); | |
6f931855 | 650 | if (ans <= 0) { |
4ac9f078 | 651 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK clock failed"); |
bd09006a | 652 | return FALSE; |
653 | } | |
4ac9f078 | 654 | //demod |
655 | //try psk1 -- 0 0 6 (six errors?!?) | |
656 | ans = PSKDemod("0 0 6", FALSE); | |
657 | if (!ans) { | |
658 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 Demod failed"); | |
659 | ||
660 | //try psk1 inverted | |
661 | ans = PSKDemod("0 1 6", FALSE); | |
662 | if (!ans) { | |
663 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: PSK1 inverted Demod failed"); | |
664 | return FALSE; | |
665 | } | |
666 | } | |
667 | // either PSK1 or PSK1 inverted is ok from here. | |
668 | // lets check PSK2 later. | |
bd09006a | 669 | return TRUE; |
670 | } | |
671 | // try manchester - NOTE: ST only applies to T55x7 tags. | |
672 | bool detectASK_MAN(){ | |
673 | bool stcheck = FALSE; | |
6f931855 | 674 | int ans = ASKDemod_ext("0 0 0", FALSE, FALSE, 1, &stcheck); |
bd09006a | 675 | if (!ans) { |
4ac9f078 | 676 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/Manchester Demod failed"); |
bd09006a | 677 | return FALSE; |
678 | } | |
679 | return TRUE; | |
680 | } | |
681 | bool detectASK_BI(){ | |
682 | int ans = ASKbiphaseDemod("0 0 1", FALSE); | |
683 | if (!ans) { | |
4ac9f078 | 684 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase normal demod failed"); |
bd09006a | 685 | |
686 | ans = ASKbiphaseDemod("0 1 1", FALSE); | |
62dc7d4a | 687 | if (!ans) { |
4ac9f078 | 688 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM: ASK/biphase inverted demod failed"); |
bd09006a | 689 | return FALSE; |
62dc7d4a | 690 | } |
691 | } | |
bd09006a | 692 | return TRUE; |
693 | } | |
f9f5f450 | 694 | |
516dbac2 | 695 | // param: idx - start index in demoded data. |
4ac9f078 | 696 | bool setDemodBufferEM(uint32_t *word, size_t idx){ |
697 | ||
698 | //test for even parity bits. | |
9932c55a | 699 | uint8_t parity[45] = {0}; |
17a9ca0c | 700 | memcpy( parity, DemodBuffer, 45); |
9932c55a | 701 | if (!EMwordparitytest(parity) ){ |
702 | PrintAndLog("DEBUG: Error - EM Parity tests failed"); | |
703 | return FALSE; | |
704 | } | |
5215a874 | 705 | |
706 | // test for even parity bits and remove them. (leave out the end row of parities so 36 bits) | |
707 | if (!removeParity(DemodBuffer, idx + EM_PREAMBLE_LEN, 9, 0, 36)) { | |
9c624f67 | 708 | if (g_debugMode) PrintAndLog("DEBUG: Error - EM, failed removing parity"); |
4ac9f078 | 709 | return FALSE; |
516dbac2 | 710 | } |
5215a874 | 711 | setDemodBuf(DemodBuffer, 32, 0); |
4ac9f078 | 712 | *word = bytebits_to_byteLSBF(DemodBuffer, 32); |
9932c55a | 713 | return TRUE; |
bd09006a | 714 | } |
f9f5f450 | 715 | |
bd09006a | 716 | // FSK, PSK, ASK/MANCHESTER, ASK/BIPHASE, ASK/DIPHASE |
717 | // should cover 90% of known used configs | |
718 | // the rest will need to be manually demoded for now... | |
4ac9f078 | 719 | bool demodEM4x05resp(uint32_t *word) { |
720 | size_t idx = 0; | |
721 | ||
722 | if (detectASK_MAN() && doPreambleSearch( &idx )) | |
723 | return setDemodBufferEM(word, idx); | |
bd09006a | 724 | |
4ac9f078 | 725 | if (detectASK_BI() && doPreambleSearch( &idx )) |
726 | return setDemodBufferEM(word, idx); | |
bd09006a | 727 | |
4ac9f078 | 728 | if (detectFSK() && doPreambleSearch( &idx )) |
729 | return setDemodBufferEM(word, idx); | |
bd09006a | 730 | |
4ac9f078 | 731 | if (detectPSK()) { |
732 | if (doPreambleSearch( &idx )) | |
733 | return setDemodBufferEM(word, idx); | |
734 | ||
735 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
736 | if (doPreambleSearch( &idx )) | |
737 | return setDemodBufferEM(word, idx); | |
738 | } | |
739 | return FALSE; | |
740 | } | |
741 | ||
742 | //////////////// 4205 / 4305 commands | |
743 | int usage_lf_em4x05_dump(void) { | |
744 | PrintAndLog("Dump EM4x05/EM4x69. Tag must be on antenna. "); | |
745 | PrintAndLog(""); | |
746 | PrintAndLog("Usage: lf em 4x05dump [h] <pwd>"); | |
747 | PrintAndLog("Options:"); | |
748 | PrintAndLog(" h - this help"); | |
749 | PrintAndLog(" pwd - password (hex) (optional)"); | |
750 | PrintAndLog("samples:"); | |
751 | PrintAndLog(" lf em 4x05dump"); | |
752 | PrintAndLog(" lf em 4x05dump 11223344"); | |
753 | return 0; | |
754 | } | |
755 | int usage_lf_em4x05_read(void) { | |
756 | PrintAndLog("Read EM4x05/EM4x69. Tag must be on antenna. "); | |
757 | PrintAndLog(""); | |
758 | PrintAndLog("Usage: lf em 4x05read [h] <address> <pwd>"); | |
759 | PrintAndLog("Options:"); | |
760 | PrintAndLog(" h - this help"); | |
761 | PrintAndLog(" address - memory address to read. (0-15)"); | |
762 | PrintAndLog(" pwd - password (hex) (optional)"); | |
763 | PrintAndLog("samples:"); | |
764 | PrintAndLog(" lf em 4x05read 1"); | |
765 | PrintAndLog(" lf em 4x05read 1 11223344"); | |
766 | return 0; | |
767 | } | |
768 | int usage_lf_em4x05_write(void) { | |
769 | PrintAndLog("Write EM4x05/4x69. Tag must be on antenna. "); | |
770 | PrintAndLog(""); | |
771 | PrintAndLog("Usage: lf em 4x05write [h] <address> <data> <pwd>"); | |
772 | PrintAndLog("Options:"); | |
773 | PrintAndLog(" h - this help"); | |
774 | PrintAndLog(" address - memory address to write to. (0-15)"); | |
775 | PrintAndLog(" data - data to write (hex)"); | |
776 | PrintAndLog(" pwd - password (hex) (optional)"); | |
777 | PrintAndLog("samples:"); | |
778 | PrintAndLog(" lf em 4x05write 1 deadc0de"); | |
779 | PrintAndLog(" lf em 4x05write 1 deadc0de 11223344"); | |
780 | return 0; | |
781 | } | |
5215a874 | 782 | int usage_lf_em4x05_info(void) { |
783 | PrintAndLog("Tag information EM4205/4305/4469//4569 tags. Tag must be on antenna."); | |
784 | PrintAndLog(""); | |
785 | PrintAndLog("Usage: lf em 4x05info [h] <pwd>"); | |
786 | PrintAndLog("Options:"); | |
787 | PrintAndLog(" h - this help"); | |
788 | PrintAndLog(" pwd - password (hex) (optional)"); | |
789 | PrintAndLog("samples:"); | |
790 | PrintAndLog(" lf em 4x05info"); | |
791 | PrintAndLog(" lf em 4x05info deadc0de"); | |
792 | return 0; | |
793 | } | |
4ac9f078 | 794 | |
795 | int CmdEM4x05Dump(const char *Cmd) { | |
796 | uint8_t addr = 0; | |
9932c55a | 797 | uint32_t pwd = 0; |
4ac9f078 | 798 | bool usePwd = false; |
799 | uint8_t ctmp = param_getchar(Cmd, 0); | |
800 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_dump(); | |
801 | ||
802 | // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) | |
803 | pwd = param_get32ex(Cmd, 0, 1, 16); | |
bd09006a | 804 | |
5e9d59fe | 805 | if ( pwd != 1 ) |
4ac9f078 | 806 | usePwd = true; |
5e9d59fe | 807 | |
4ac9f078 | 808 | int success = 1; |
9932c55a | 809 | PrintAndLog("Addr | data | ascii"); |
810 | PrintAndLog("-----+--------+------"); | |
4ac9f078 | 811 | for (; addr < 16; addr++) { |
812 | if (addr == 2) { | |
813 | if (usePwd) { | |
9932c55a | 814 | PrintAndLog(" %02u | %08X", addr, pwd); |
4ac9f078 | 815 | } else { |
9932c55a | 816 | PrintAndLog(" 02 | cannot read"); |
4ac9f078 | 817 | } |
818 | } else { | |
819 | //success &= EM4x05Read(addr, pwd, usePwd); | |
820 | } | |
821 | } | |
080e1114 | 822 | |
4ac9f078 | 823 | return success; |
f9f5f450 | 824 | } |
5e9d59fe | 825 | //ICEMAN; mentalnote to self: -1 is not doable for uint32_t.. |
4ac9f078 | 826 | int CmdEM4x05Read(const char *Cmd) { |
cb1ba30a | 827 | int addr, pwd; |
828 | bool usePwd = false; | |
829 | uint8_t ctmp = param_getchar(Cmd, 0); | |
4ac9f078 | 830 | if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_read(); |
cb1ba30a | 831 | |
832 | addr = param_get8ex(Cmd, 0, -1, 10); | |
833 | pwd = param_get32ex(Cmd, 1, -1, 16); | |
23f0a7d8 | 834 | |
cb1ba30a | 835 | if ( (addr > 15) || (addr < 0 ) || ( addr == -1) ) { |
836 | PrintAndLog("Address must be between 0 and 15"); | |
23f0a7d8 | 837 | return 1; |
838 | } | |
cb1ba30a | 839 | if ( pwd == -1 ) |
840 | PrintAndLog("Reading address %d", addr); | |
841 | else { | |
842 | usePwd = true; | |
843 | PrintAndLog("Reading address %d | password %08X", addr, pwd); | |
844 | } | |
23f0a7d8 | 845 | |
cb1ba30a | 846 | UsbCommand c = {CMD_EM4X_READ_WORD, {addr, pwd, usePwd}}; |
847 | clearCommandBuffer(); | |
23f0a7d8 | 848 | SendCommand(&c); |
cb1ba30a | 849 | UsbCommand resp; |
850 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 2500)){ | |
851 | PrintAndLog("Command timed out"); | |
852 | return -1; | |
23f0a7d8 | 853 | } |
516dbac2 | 854 | |
855 | if (!downloadSamplesEM()) | |
ff9c043d | 856 | return -1; |
516dbac2 | 857 | |
f9f5f450 | 858 | int testLen = (GraphTraceLen < 1000) ? GraphTraceLen : 1000; |
859 | if (graphJustNoise(GraphBuffer, testLen)) { | |
516dbac2 | 860 | PrintAndLog("Tag not found"); |
ff9c043d | 861 | return -1; |
862 | } | |
863 | ||
4ac9f078 | 864 | //attempt demod |
865 | uint32_t word = 0; | |
866 | int isOk = demodEM4x05resp(&word); | |
867 | if (isOk) | |
868 | PrintAndLog("Got Address %02d | %08X",addr, word); | |
869 | else | |
080e1114 | 870 | PrintAndLog("Read failed"); |
871 | ||
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; |
cb1ba30a | 880 | int addr = 16; // default to invalid address |
881 | int data = 0xFFFFFFFF; // default to blank data | |
882 | int pwd = 0xFFFFFFFF; // default to blank password | |
883 | ||
884 | addr = param_get8ex(Cmd, 0, -1, 10); | |
885 | data = param_get32ex(Cmd, 1, -1, 16); | |
886 | pwd = param_get32ex(Cmd, 2, -1, 16); | |
23f0a7d8 | 887 | |
cb1ba30a | 888 | if ( (addr > 15) || (addr < 0 ) || ( addr == -1) ) { |
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 | ||
9c624f67 | 913 | |
62dc7d4a | 914 | //attempt demod: |
915 | //need 0 bits demoded (after preamble) to verify write cmd | |
4ac9f078 | 916 | uint32_t dummy = 0; |
917 | int isOk = demodEM4x05resp(&dummy); | |
918 | if (isOk) | |
62dc7d4a | 919 | PrintAndLog("Write Verified"); |
5215a874 | 920 | else |
921 | PrintAndLog("Write could not be verified"); | |
4ac9f078 | 922 | return isOk; |
54a942b0 | 923 | } |
924 | ||
5215a874 | 925 | void printEM4x05config(uint32_t wordData) { |
926 | uint16_t datarate = (((wordData & 0x3F)+1)*2); | |
927 | uint8_t encoder = ((wordData >> 6) & 0xF); | |
928 | char enc[14]; | |
929 | memset(enc,0,sizeof(enc)); | |
930 | ||
931 | uint8_t PSKcf = (wordData >> 10) & 0x3; | |
932 | char cf[10]; | |
933 | memset(cf,0,sizeof(cf)); | |
934 | uint8_t delay = (wordData >> 12) & 0x3; | |
935 | char cdelay[33]; | |
936 | memset(cdelay,0,sizeof(cdelay)); | |
937 | uint8_t LWR = (wordData >> 14) & 0xF; //last word read | |
938 | ||
939 | switch (encoder) { | |
940 | case 0: snprintf(enc,sizeof(enc),"NRZ"); break; | |
941 | case 1: snprintf(enc,sizeof(enc),"Manchester"); break; | |
942 | case 2: snprintf(enc,sizeof(enc),"Biphase"); break; | |
943 | case 3: snprintf(enc,sizeof(enc),"Miller"); break; | |
944 | case 4: snprintf(enc,sizeof(enc),"PSK1"); break; | |
945 | case 5: snprintf(enc,sizeof(enc),"PSK2"); break; | |
946 | case 6: snprintf(enc,sizeof(enc),"PSK3"); break; | |
947 | case 7: snprintf(enc,sizeof(enc),"Unknown"); break; | |
948 | case 8: snprintf(enc,sizeof(enc),"FSK1"); break; | |
949 | case 9: snprintf(enc,sizeof(enc),"FSK2"); break; | |
950 | default: snprintf(enc,sizeof(enc),"Unknown"); break; | |
951 | } | |
952 | ||
953 | switch (PSKcf) { | |
954 | case 0: snprintf(cf,sizeof(cf),"RF/2"); break; | |
955 | case 1: snprintf(cf,sizeof(cf),"RF/8"); break; | |
956 | case 2: snprintf(cf,sizeof(cf),"RF/4"); break; | |
957 | case 3: snprintf(cf,sizeof(cf),"unknown"); break; | |
958 | } | |
959 | ||
960 | switch (delay) { | |
961 | case 0: snprintf(cdelay, sizeof(cdelay),"no delay"); break; | |
962 | case 1: snprintf(cdelay, sizeof(cdelay),"BP/8 or 1/8th bit period delay"); break; | |
963 | case 2: snprintf(cdelay, sizeof(cdelay),"BP/4 or 1/4th bit period delay"); break; | |
964 | case 3: snprintf(cdelay, sizeof(cdelay),"no delay"); break; | |
965 | } | |
966 | PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData); | |
967 | PrintAndLog("Config Breakdown:", wordData); | |
968 | PrintAndLog(" Data Rate: %02u | RF/%u", wordData & 0x3F, datarate); | |
969 | PrintAndLog(" Encoder: %u | %s", encoder, enc); | |
970 | PrintAndLog(" PSK CF: %u | %s", PSKcf, cf); | |
971 | PrintAndLog(" Delay: %u | %s", delay, cdelay); | |
972 | PrintAndLog(" LastWordR: %02u | Address of last word for default read", LWR); | |
973 | PrintAndLog(" ReadLogin: %u | Read Login is %s", (wordData & 0x40000)>>18, (wordData & 0x40000) ? "Required" : "Not Required"); | |
974 | PrintAndLog(" ReadHKL: %u | Read Housekeeping Words Login is %s", (wordData & 0x80000)>>19, (wordData & 0x80000) ? "Required" : "Not Required"); | |
975 | PrintAndLog("WriteLogin: %u | Write Login is %s", (wordData & 0x100000)>>20, (wordData & 0x100000) ? "Required" : "Not Required"); | |
976 | PrintAndLog(" WriteHKL: %u | Write Housekeeping Words Login is %s", (wordData & 0x200000)>>21, (wordData & 0x200000) ? "Required" : "Not Required"); | |
977 | PrintAndLog(" R.A.W.: %u | Read After Write is %s", (wordData & 0x400000)>>22, (wordData & 0x400000) ? "On" : "Off"); | |
978 | PrintAndLog(" Disable: %u | Disable Command is %s", (wordData & 0x800000)>>23, (wordData & 0x800000) ? "Accepted" : "Not Accepted"); | |
979 | PrintAndLog(" R.T.F.: %u | Reader Talk First is %s", (wordData & 0x1000000)>>24, (wordData & 0x1000000) ? "Enabled" : "Disabled"); | |
980 | PrintAndLog(" Pigeon: %u | Pigeon Mode is %s\n", (wordData & 0x4000000)>>26, (wordData & 0x4000000) ? "Enabled" : "Disabled"); | |
981 | } | |
982 | ||
983 | void printEM4x05info(uint8_t chipType, uint8_t cap, uint16_t custCode, uint32_t serial) { | |
984 | switch (chipType) { | |
985 | case 9: PrintAndLog("\n Chip Type: %u | EM4305", chipType); break; | |
986 | case 4: PrintAndLog(" Chip Type: %u | Unknown", chipType); break; | |
987 | case 2: PrintAndLog(" Chip Type: %u | EM4469", chipType); break; | |
988 | //add more here when known | |
989 | default: PrintAndLog(" Chip Type: %u Unknown", chipType); break; | |
990 | } | |
991 | ||
992 | switch (cap) { | |
993 | case 3: PrintAndLog(" Cap Type: %u | 330pF",cap); break; | |
994 | case 2: PrintAndLog(" Cap Type: %u | %spF",cap, (chipType==2)? "75":"210"); break; | |
995 | case 1: PrintAndLog(" Cap Type: %u | 250pF",cap); break; | |
996 | case 0: PrintAndLog(" Cap Type: %u | no resonant capacitor",cap); break; | |
997 | default: PrintAndLog(" Cap Type: %u | unknown",cap); break; | |
998 | } | |
999 | ||
1000 | PrintAndLog(" Cust Code: %03u | %s", custCode, (custCode == 0x200) ? "Default": "Unknown"); | |
1001 | if (serial != 0) { | |
1002 | PrintAndLog("\n Serial #: %08X\n", serial); | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | void printEM4x05ProtectionBits(uint32_t wordData) { | |
1007 | for (uint8_t i = 0; i < 15; i++) { | |
1008 | PrintAndLog(" Word: %02u | %s", i, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); | |
1009 | if (i==14) { | |
1010 | PrintAndLog(" Word: %02u | %s", i+1, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked"); | |
1011 | } | |
1012 | } | |
1013 | } | |
1014 | ||
1015 | //quick test for EM4x05/EM4x69 tag | |
1016 | bool EM4x05Block0Test(uint32_t *wordData) { | |
1017 | // return (EM4x05ReadWord_ext(0,0,false,wordData) == 1); | |
1018 | return false; | |
1019 | } | |
1020 | ||
1021 | int CmdEM4x05Info(const char *Cmd) { | |
1022 | /* | |
1023 | uint32_t pwd; | |
1024 | uint32_t wordData = 0; | |
1025 | bool usePwd = false; | |
1026 | uint8_t ctmp = param_getchar(Cmd, 0); | |
1027 | if ( ctmp == 'H' || ctmp == 'h' ) return usage_lf_em4x05_info(); | |
1028 | ||
1029 | // for now use default input of 1 as invalid (unlikely 1 will be a valid password...) | |
1030 | pwd = param_get32ex(Cmd, 0, 1, 16); | |
1031 | ||
1032 | if ( pwd != 1 ) | |
1033 | usePwd = true; | |
1034 | ||
1035 | // read word 0 (chip info) | |
1036 | // block 0 can be read even without a password. | |
1037 | if ( !EM4x05Block0Test(&wordData) ) | |
1038 | return -1; | |
1039 | ||
1040 | uint8_t chipType = (wordData >> 1) & 0xF; | |
1041 | uint8_t cap = (wordData >> 5) & 3; | |
1042 | uint16_t custCode = (wordData >> 9) & 0x3FF; | |
1043 | ||
1044 | // read word 1 (serial #) doesn't need pwd | |
1045 | wordData = 0; | |
1046 | if (EM4x05ReadWord_ext(1, 0, false, &wordData) != 1) { | |
1047 | //failed, but continue anyway... | |
1048 | } | |
1049 | printEM4x05info(chipType, cap, custCode, wordData); | |
1050 | ||
1051 | // read word 4 (config block) | |
1052 | // needs password if one is set | |
1053 | wordData = 0; | |
1054 | if ( EM4x05ReadWord_ext(4, pwd, usePwd, &wordData) != 1 ) | |
1055 | return 0; | |
1056 | ||
1057 | printEM4x05config(wordData); | |
1058 | ||
1059 | // read word 14 and 15 to see which is being used for the protection bits | |
1060 | wordData = 0; | |
1061 | if ( EM4x05ReadWord_ext(14, pwd, usePwd, &wordData) != 1 ) { | |
1062 | return 0; | |
1063 | } | |
1064 | // if status bit says this is not the used protection word | |
1065 | if (!(wordData & 0x8000)) { | |
1066 | if ( EM4x05ReadWord_ext(15, pwd, usePwd, &wordData) != 1 ) { | |
1067 | return 0; | |
1068 | } | |
1069 | } | |
1070 | if (!(wordData & 0x8000)) { | |
1071 | //something went wrong | |
1072 | return 0; | |
1073 | } | |
1074 | printEM4x05ProtectionBits(wordData); | |
1075 | ||
1076 | */ | |
1077 | return 1; | |
1078 | } | |
1079 | ||
cb1ba30a | 1080 | static command_t CommandTable[] = { |
1081 | {"help", CmdHelp, 1, "This help"}, | |
4ac9f078 | 1082 | {"410xdemod", CmdEMdemodASK, 0, "[findone] -- Extract ID from EM410x tag (option 0 for continuous loop, 1 for only 1 tag)"}, |
1083 | {"410xread", CmdEM410xRead, 1, "[clock rate] -- Extract ID from EM410x tag in GraphBuffer"}, | |
1084 | {"410xsim", CmdEM410xSim, 0, "<UID> -- Simulate EM410x tag"}, | |
1085 | {"410xwatch", CmdEM410xWatch, 0, "['h'] -- Watches for EM410x 125/134 kHz tags (option 'h' for 134)"}, | |
1086 | {"410xspoof", CmdEM410xWatchnSpoof, 0, "['h'] --- Watches for EM410x 125/134 kHz tags, and replays them. (option 'h' for 134)" }, | |
1087 | {"410xwrite", CmdEM410xWrite, 0, "<UID> <'0' T5555> <'1' T55x7> [clock rate] -- Write EM410x UID to T5555(Q5) or T55x7 tag, optionally setting clock rate"}, | |
5215a874 | 1088 | {"4x05dump", CmdEM4x05Dump, 0, "dump EM4205/4305 tag"}, |
1089 | {"4x05info", CmdEM4x05Info, 0, "Tag information EM4x05/EM4x69"}, | |
4ac9f078 | 1090 | {"4x05read", CmdEM4x05Read, 0, "read word data from EM4205/4305"}, |
1091 | {"4x05write", CmdEM4x05Write, 0, "write word data to EM4205/4305"}, | |
4ac9f078 | 1092 | {"4x50read", CmdEM4x50Read, 0, "read word data from EM4x50"}, |
1093 | {"4x50write", CmdEM4x50Write, 0, "write word data to EM4x50"}, | |
1094 | {"4x50dump", CmdEM4x50Dump, 0, "dump EM4x50 tag"}, | |
23f0a7d8 | 1095 | {NULL, NULL, 0, NULL} |
7fe9b0b7 | 1096 | }; |
1097 | ||
4c36581b | 1098 | int CmdLFEM4X(const char *Cmd) { |
1099 | clearCommandBuffer(); | |
23f0a7d8 | 1100 | CmdsParse(CommandTable, Cmd); |
1101 | return 0; | |
7fe9b0b7 | 1102 | } |
1103 | ||
4c36581b | 1104 | int CmdHelp(const char *Cmd) { |
23f0a7d8 | 1105 | CmdsHelp(CommandTable); |
1106 | return 0; | |
7fe9b0b7 | 1107 | } |