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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 | // Data and Graph commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
7fe9b0b7 | 11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
14 | #include <limits.h> | |
902cb3c0 | 15 | #include "proxmark3.h" |
7fe9b0b7 | 16 | #include "data.h" |
17 | #include "ui.h" | |
18 | #include "graph.h" | |
19 | #include "cmdparser.h" | |
d51b2eda | 20 | #include "util.h" |
7fe9b0b7 | 21 | #include "cmdmain.h" |
22 | #include "cmddata.h" | |
7db5f1ca | 23 | #include "lfdemod.h" |
31abe49f | 24 | #include "usb_cmd.h" |
73d04bb4 | 25 | #include "crc.h" |
31abe49f | 26 | |
4118b74d | 27 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
ec75f5c1 | 28 | uint8_t g_debugMode; |
4118b74d | 29 | int DemodBufferLen; |
7fe9b0b7 | 30 | static int CmdHelp(const char *Cmd); |
31 | ||
4118b74d | 32 | //set the demod buffer with given array of binary (one bit per byte) |
33 | //by marshmellow | |
ec75f5c1 | 34 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 35 | { |
b6bf6528 | 36 | if (buff == NULL) |
37 | return; | |
38 | ||
39 | if ( size >= MAX_DEMOD_BUF_LEN) | |
40 | size = MAX_DEMOD_BUF_LEN; | |
41 | ||
ec75f5c1 | 42 | size_t i = 0; |
43 | for (; i < size; i++){ | |
44 | DemodBuffer[i]=buff[startIdx++]; | |
ba1a299c | 45 | } |
46 | DemodBufferLen=size; | |
47 | return; | |
4118b74d | 48 | } |
49 | ||
ec75f5c1 | 50 | int CmdSetDebugMode(const char *Cmd) |
51 | { | |
52 | int demod=0; | |
53 | sscanf(Cmd, "%i", &demod); | |
54 | g_debugMode=(uint8_t)demod; | |
55 | return 1; | |
56 | } | |
57 | ||
4118b74d | 58 | //by marshmellow |
abd6112f | 59 | void printDemodBuff(void) |
4118b74d | 60 | { |
ba1a299c | 61 | uint32_t i = 0; |
62 | int bitLen = DemodBufferLen; | |
63 | if (bitLen<16) { | |
64 | PrintAndLog("no bits found in demod buffer"); | |
65 | return; | |
66 | } | |
67 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
b6bf6528 | 68 | |
0c5998c0 | 69 | // ensure equally divided by 16 |
b4fb11ba | 70 | bitLen &= 0xfff0; |
b6bf6528 | 71 | |
ba1a299c | 72 | for (i = 0; i <= (bitLen-16); i+=16) { |
73 | PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", | |
74 | DemodBuffer[i], | |
75 | DemodBuffer[i+1], | |
76 | DemodBuffer[i+2], | |
77 | DemodBuffer[i+3], | |
78 | DemodBuffer[i+4], | |
79 | DemodBuffer[i+5], | |
80 | DemodBuffer[i+6], | |
81 | DemodBuffer[i+7], | |
82 | DemodBuffer[i+8], | |
83 | DemodBuffer[i+9], | |
84 | DemodBuffer[i+10], | |
85 | DemodBuffer[i+11], | |
86 | DemodBuffer[i+12], | |
87 | DemodBuffer[i+13], | |
88 | DemodBuffer[i+14], | |
89 | DemodBuffer[i+15]); | |
90 | } | |
91 | return; | |
4118b74d | 92 | } |
93 | ||
8d960002 | 94 | int CmdPrintDemodBuff(const char *Cmd) |
95 | { | |
13024283 | 96 | char hex; |
97 | char printBuff[512]={0x00}; | |
98 | uint8_t numBits = DemodBufferLen & 0xFFF0; | |
99 | sscanf(Cmd, "%c", &hex); | |
100 | if (hex == 'h'){ | |
101 | PrintAndLog("Usage: data printdemodbuffer [x]"); | |
102 | PrintAndLog("Options: "); | |
103 | PrintAndLog(" h This help"); | |
104 | PrintAndLog(" x output in hex (omit for binary output)"); | |
105 | return 0; | |
106 | } | |
107 | if (hex == 'x'){ | |
108 | numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits); | |
109 | if (numBits==0) return 0; | |
110 | PrintAndLog("DemodBuffer: %s",printBuff); | |
111 | } else { | |
112 | printDemodBuff(); | |
113 | } | |
8d960002 | 114 | return 1; |
115 | } | |
7fe9b0b7 | 116 | int CmdAmp(const char *Cmd) |
117 | { | |
118 | int i, rising, falling; | |
119 | int max = INT_MIN, min = INT_MAX; | |
120 | ||
121 | for (i = 10; i < GraphTraceLen; ++i) { | |
122 | if (GraphBuffer[i] > max) | |
123 | max = GraphBuffer[i]; | |
124 | if (GraphBuffer[i] < min) | |
125 | min = GraphBuffer[i]; | |
126 | } | |
127 | ||
128 | if (max != min) { | |
129 | rising = falling= 0; | |
130 | for (i = 0; i < GraphTraceLen; ++i) { | |
131 | if (GraphBuffer[i + 1] < GraphBuffer[i]) { | |
132 | if (rising) { | |
133 | GraphBuffer[i] = max; | |
134 | rising = 0; | |
135 | } | |
136 | falling = 1; | |
137 | } | |
138 | if (GraphBuffer[i + 1] > GraphBuffer[i]) { | |
139 | if (falling) { | |
140 | GraphBuffer[i] = min; | |
141 | falling = 0; | |
142 | } | |
143 | rising= 1; | |
144 | } | |
145 | } | |
146 | } | |
147 | RepaintGraphWindow(); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | /* | |
152 | * Generic command to demodulate ASK. | |
153 | * | |
154 | * Argument is convention: positive or negative (High mod means zero | |
155 | * or high mod means one) | |
156 | * | |
157 | * Updates the Graph trace with 0/1 values | |
158 | * | |
159 | * Arguments: | |
78f5b1a7 | 160 | * c : 0 or 1 (or invert) |
7fe9b0b7 | 161 | */ |
78f5b1a7 | 162 | //this method ignores the clock |
163 | ||
164 | //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer | |
7fe9b0b7 | 165 | int Cmdaskdemod(const char *Cmd) |
166 | { | |
167 | int i; | |
168 | int c, high = 0, low = 0; | |
ba1a299c | 169 | |
7fe9b0b7 | 170 | sscanf(Cmd, "%i", &c); |
ba1a299c | 171 | |
78f5b1a7 | 172 | /* Detect high and lows */ |
7fe9b0b7 | 173 | for (i = 0; i < GraphTraceLen; ++i) |
174 | { | |
175 | if (GraphBuffer[i] > high) | |
176 | high = GraphBuffer[i]; | |
177 | else if (GraphBuffer[i] < low) | |
178 | low = GraphBuffer[i]; | |
179 | } | |
eb191de6 | 180 | high=abs(high*.75); |
181 | low=abs(low*.75); | |
7fe9b0b7 | 182 | if (c != 0 && c != 1) { |
183 | PrintAndLog("Invalid argument: %s", Cmd); | |
184 | return 0; | |
185 | } | |
b3b70669 | 186 | //prime loop |
7fe9b0b7 | 187 | if (GraphBuffer[0] > 0) { |
188 | GraphBuffer[0] = 1-c; | |
189 | } else { | |
190 | GraphBuffer[0] = c; | |
191 | } | |
192 | for (i = 1; i < GraphTraceLen; ++i) { | |
193 | /* Transitions are detected at each peak | |
194 | * Transitions are either: | |
195 | * - we're low: transition if we hit a high | |
196 | * - we're high: transition if we hit a low | |
197 | * (we need to do it this way because some tags keep high or | |
198 | * low for long periods, others just reach the peak and go | |
199 | * down) | |
200 | */ | |
ae2f73c1 | 201 | //[marhsmellow] change == to >= for high and <= for low for fuzz |
78f5b1a7 | 202 | if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) { |
7fe9b0b7 | 203 | GraphBuffer[i] = 1 - c; |
78f5b1a7 | 204 | } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){ |
7fe9b0b7 | 205 | GraphBuffer[i] = c; |
206 | } else { | |
207 | /* No transition */ | |
208 | GraphBuffer[i] = GraphBuffer[i - 1]; | |
209 | } | |
210 | } | |
211 | RepaintGraphWindow(); | |
212 | return 0; | |
213 | } | |
214 | ||
78f5b1a7 | 215 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer |
216 | int CmdGetBitStream(const char *Cmd) | |
217 | { | |
218 | int i; | |
219 | CmdHpf(Cmd); | |
220 | for (i = 0; i < GraphTraceLen; i++) { | |
221 | if (GraphBuffer[i] >= 1) { | |
222 | GraphBuffer[i] = 1; | |
223 | } else { | |
224 | GraphBuffer[i] = 0; | |
225 | } | |
226 | } | |
227 | RepaintGraphWindow(); | |
228 | return 0; | |
229 | } | |
230 | ||
231 | ||
d5a72d2f | 232 | //by marshmellow |
233 | void printBitStream(uint8_t BitStream[], uint32_t bitLen) | |
234 | { | |
b4fb11ba | 235 | uint32_t i = 0; |
236 | if (bitLen<16) { | |
237 | PrintAndLog("Too few bits found: %d",bitLen); | |
238 | return; | |
239 | } | |
240 | if (bitLen>512) bitLen=512; | |
0c5998c0 | 241 | |
b4fb11ba | 242 | // ensure equally divided by 16 |
243 | bitLen &= 0xfff0; | |
0c5998c0 | 244 | |
b4fb11ba | 245 | |
246 | for (i = 0; i <= (bitLen-16); i+=16) { | |
247 | PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", | |
248 | BitStream[i], | |
249 | BitStream[i+1], | |
250 | BitStream[i+2], | |
251 | BitStream[i+3], | |
252 | BitStream[i+4], | |
253 | BitStream[i+5], | |
254 | BitStream[i+6], | |
255 | BitStream[i+7], | |
256 | BitStream[i+8], | |
257 | BitStream[i+9], | |
258 | BitStream[i+10], | |
259 | BitStream[i+11], | |
260 | BitStream[i+12], | |
261 | BitStream[i+13], | |
262 | BitStream[i+14], | |
263 | BitStream[i+15]); | |
264 | } | |
ba1a299c | 265 | return; |
2fc2150e | 266 | } |
d5a72d2f | 267 | //by marshmellow |
3ac59c7f | 268 | //print 64 bit EM410x ID in multiple formats |
b41534d1 | 269 | void printEM410x(uint32_t hi, uint64_t id) |
2fc2150e | 270 | { |
b41534d1 | 271 | if (id || hi){ |
b4fb11ba | 272 | uint64_t iii=1; |
273 | uint64_t id2lo=0; | |
274 | uint32_t ii=0; | |
275 | uint32_t i=0; | |
276 | for (ii=5; ii>0;ii--){ | |
277 | for (i=0;i<8;i++){ | |
278 | id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); | |
2fc2150e | 279 | } |
b4fb11ba | 280 | } |
b41534d1 | 281 | if (hi){ |
282 | //output 88 bit em id | |
283 | PrintAndLog("EM TAG ID : %06x%016llx", hi, id); | |
284 | } else{ | |
285 | //output 40 bit em id | |
b4fb11ba | 286 | PrintAndLog("EM TAG ID : %010llx", id); |
287 | PrintAndLog("Unique TAG ID: %010llx", id2lo); | |
9552d591 | 288 | |
289 | PrintAndLog(""); | |
290 | PrintAndLog("Possible de-scramble patterns"); | |
291 | PrintAndLog("HoneyWell IdentKey"); | |
b4fb11ba | 292 | PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); |
6255c8b1 | 293 | PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF); |
b4fb11ba | 294 | PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); |
295 | PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); | |
6255c8b1 | 296 | PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF)); |
297 | PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF)); | |
b4fb11ba | 298 | PrintAndLog("DEZ 14/IK2 : %014lld",id); |
299 | PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); | |
d21e0f1c | 300 | PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld", |
301 | (id2lo & 0xf000000000) >> 36, | |
302 | (id2lo & 0x0f00000000) >> 32, | |
303 | (id2lo & 0x00f0000000) >> 28, | |
304 | (id2lo & 0x000f000000) >> 24, | |
305 | (id2lo & 0x0000f00000) >> 20, | |
306 | (id2lo & 0x00000f0000) >> 16, | |
307 | (id2lo & 0x000000f000) >> 12, | |
308 | (id2lo & 0x0000000f00) >> 8, | |
309 | (id2lo & 0x00000000f0) >> 4, | |
310 | (id2lo & 0x000000000f) | |
311 | ); | |
754a35e7 | 312 | PrintAndLog("Other : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); |
9552d591 | 313 | PrintAndLog(""); |
314 | uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00; | |
754a35e7 | 315 | PrintAndLog("Pattern Paxton : %lld (hex %08llX)", paxton, paxton); |
9552d591 | 316 | |
317 | uint32_t p1id = (id & 0xFFFFFF); | |
318 | uint8_t arr[32] = {0x00}; | |
319 | int i =0; | |
320 | int j = 23; | |
321 | for (; i < 24; ++i, --j ){ | |
322 | arr[i] = (p1id >> i) & 1; | |
323 | } | |
324 | ||
325 | uint32_t p1 = 0; | |
326 | ||
327 | p1 |= arr[23] << 21; | |
328 | p1 |= arr[22] << 23; | |
329 | p1 |= arr[21] << 20; | |
330 | p1 |= arr[20] << 22; | |
331 | ||
332 | p1 |= arr[19] << 18; | |
333 | p1 |= arr[18] << 16; | |
334 | p1 |= arr[17] << 19; | |
335 | p1 |= arr[16] << 17; | |
336 | ||
337 | p1 |= arr[15] << 13; | |
338 | p1 |= arr[14] << 15; | |
339 | p1 |= arr[13] << 12; | |
340 | p1 |= arr[12] << 14; | |
341 | ||
342 | p1 |= arr[11] << 6; | |
343 | p1 |= arr[10] << 2; | |
344 | p1 |= arr[9] << 7; | |
345 | p1 |= arr[8] << 1; | |
346 | ||
347 | p1 |= arr[7] << 0; | |
348 | p1 |= arr[6] << 8; | |
349 | p1 |= arr[5] << 11; | |
350 | p1 |= arr[4] << 3; | |
351 | ||
352 | p1 |= arr[3] << 10; | |
353 | p1 |= arr[2] << 4; | |
354 | p1 |= arr[1] << 5; | |
355 | p1 |= arr[0] << 9; | |
754a35e7 | 356 | PrintAndLog("Pattern 1 : %d (hex %X)", p1, p1); |
9552d591 | 357 | |
358 | uint16_t sebury1 = id & 0xFFFF; | |
359 | uint8_t sebury2 = (id >> 16) & 0x7F; | |
360 | uint32_t sebury3 = id & 0x7FFFFF; | |
754a35e7 | 361 | PrintAndLog("Pattern Sebury : %010d %03d %d (hex: %X %X %X)", sebury3, sebury2, sebury1, sebury3, sebury2, sebury1); |
9552d591 | 362 | } |
b4fb11ba | 363 | } |
364 | return; | |
eb191de6 | 365 | } |
366 | ||
d5a72d2f | 367 | //by marshmellow |
e770c648 | 368 | //takes 3 arguments - clock, invert and maxErr as integers |
369 | //attempts to demodulate ask while decoding manchester | |
370 | //prints binary found and saves in graphbuffer for further commands | |
371 | int CmdAskEM410xDemod(const char *Cmd) | |
eb191de6 | 372 | { |
e770c648 | 373 | char cmdp = param_getchar(Cmd, 0); |
6de43508 | 374 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { |
e770c648 | 375 | PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); |
376 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
377 | PrintAndLog(" <invert>, 1 for invert output"); | |
378 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
379 | PrintAndLog(""); | |
380 | PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); | |
381 | PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); | |
382 | PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); | |
383 | PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); | |
384 | PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors"); | |
e770c648 | 385 | return 0; |
386 | } | |
b41534d1 | 387 | int ans = ASKmanDemod(Cmd, FALSE, FALSE); |
388 | if (!ans) return 0; | |
e770c648 | 389 | |
e770c648 | 390 | uint64_t lo =0; |
b41534d1 | 391 | uint32_t hi =0; |
e770c648 | 392 | size_t idx=0; |
b41534d1 | 393 | if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, &hi, &lo)){ |
ec75f5c1 | 394 | if (g_debugMode){ |
b41534d1 | 395 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen); |
ec75f5c1 | 396 | printDemodBuff(); |
397 | } | |
e770c648 | 398 | PrintAndLog("EM410x pattern found: "); |
b41534d1 | 399 | printEM410x(hi, lo); |
e770c648 | 400 | return 1; |
ec75f5c1 | 401 | } |
2fc2150e | 402 | return 0; |
403 | } | |
404 | ||
3ac59c7f | 405 | int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch) |
e888ed8e | 406 | { |
ec75f5c1 | 407 | int invert=0; |
b4fb11ba | 408 | int clk=0; |
e770c648 | 409 | int maxErr=100; |
3ac59c7f | 410 | |
eb191de6 | 411 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b4fb11ba | 412 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); |
e888ed8e | 413 | if (invert != 0 && invert != 1) { |
414 | PrintAndLog("Invalid argument: %s", Cmd); | |
415 | return 0; | |
416 | } | |
6de43508 | 417 | if (clk==1){ |
418 | invert=1; | |
419 | clk=0; | |
e888ed8e | 420 | } |
b4fb11ba | 421 | size_t BitLen = getFromGraphBuf(BitStream); |
ec75f5c1 | 422 | if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
e770c648 | 423 | if (BitLen==0) return 0; |
eb191de6 | 424 | int errCnt=0; |
e770c648 | 425 | errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); |
b4fb11ba | 426 | if (errCnt<0||BitLen<16){ //if fatal error (or -1) |
427 | if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); | |
e888ed8e | 428 | return 0; |
b4fb11ba | 429 | } |
b41534d1 | 430 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); |
ba1a299c | 431 | |
d5a72d2f | 432 | //output |
eb191de6 | 433 | if (errCnt>0){ |
b41534d1 | 434 | if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); |
e888ed8e | 435 | } |
b41534d1 | 436 | if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:"); |
eb191de6 | 437 | // Now output the bitstream to the scrollback by line of 16 bits |
b4fb11ba | 438 | setDemodBuf(BitStream,BitLen,0); |
b41534d1 | 439 | if (verbose || g_debugMode) printDemodBuff(); |
eb191de6 | 440 | uint64_t lo =0; |
b41534d1 | 441 | uint32_t hi =0; |
ec75f5c1 | 442 | size_t idx=0; |
3ac59c7f | 443 | if (emSearch){ |
b41534d1 | 444 | if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){ |
3ac59c7f | 445 | //set GraphBuffer for clone or sim command |
446 | setDemodBuf(BitStream, BitLen, idx); | |
447 | if (g_debugMode){ | |
448 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
449 | printDemodBuff(); | |
450 | } | |
451 | if (verbose) PrintAndLog("EM410x pattern found: "); | |
b41534d1 | 452 | if (verbose) printEM410x(hi, lo); |
3ac59c7f | 453 | return 1; |
ec75f5c1 | 454 | } |
d5a72d2f | 455 | } |
e770c648 | 456 | return 1; |
eb191de6 | 457 | } |
458 | ||
3ac59c7f | 459 | //by marshmellow |
460 | //takes 3 arguments - clock, invert, maxErr as integers | |
461 | //attempts to demodulate ask while decoding manchester | |
462 | //prints binary found and saves in graphbuffer for further commands | |
463 | int Cmdaskmandemod(const char *Cmd) | |
464 | { | |
465 | char cmdp = param_getchar(Cmd, 0); | |
466 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
467 | PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]"); | |
468 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
469 | PrintAndLog(" <invert>, 1 for invert output"); | |
470 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
471 | PrintAndLog(""); | |
472 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
473 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
474 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
475 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
476 | PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
477 | return 0; | |
478 | } | |
479 | return ASKmanDemod(Cmd, TRUE, TRUE); | |
480 | } | |
481 | ||
eb191de6 | 482 | //by marshmellow |
d5a72d2f | 483 | //manchester decode |
eb191de6 | 484 | //stricktly take 10 and 01 and convert to 0 and 1 |
485 | int Cmdmandecoderaw(const char *Cmd) | |
486 | { | |
487 | int i =0; | |
488 | int errCnt=0; | |
b4fb11ba | 489 | size_t size=0; |
6de43508 | 490 | size_t maxErr = 20; |
e770c648 | 491 | char cmdp = param_getchar(Cmd, 0); |
492 | if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') { | |
493 | PrintAndLog("Usage: data manrawdecode"); | |
494 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); | |
495 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
496 | PrintAndLog(""); | |
497 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
498 | return 0; | |
499 | } | |
500 | if (DemodBufferLen==0) return 0; | |
eb191de6 | 501 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
502 | int high=0,low=0; | |
b4fb11ba | 503 | for (;i<DemodBufferLen;++i){ |
504 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
505 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
506 | BitStream[i]=DemodBuffer[i]; | |
eb191de6 | 507 | } |
508 | if (high>1 || low <0 ){ | |
509 | PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode"); | |
510 | return 0; | |
511 | } | |
b4fb11ba | 512 | size=i; |
513 | errCnt=manrawdecode(BitStream, &size); | |
6de43508 | 514 | if (errCnt>=maxErr){ |
2df8c079 | 515 | PrintAndLog("Too many errors: %d",errCnt); |
516 | return 0; | |
517 | } | |
eb191de6 | 518 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); |
b4fb11ba | 519 | printBitStream(BitStream, size); |
eb191de6 | 520 | if (errCnt==0){ |
b4fb11ba | 521 | uint64_t id = 0; |
b41534d1 | 522 | uint32_t hi = 0; |
ec75f5c1 | 523 | size_t idx=0; |
b41534d1 | 524 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ |
ec75f5c1 | 525 | //need to adjust to set bitstream back to manchester encoded data |
526 | //setDemodBuf(BitStream, size, idx); | |
527 | ||
b41534d1 | 528 | printEM410x(hi, id); |
ec75f5c1 | 529 | } |
eb191de6 | 530 | } |
d5a72d2f | 531 | return 1; |
532 | } | |
533 | ||
534 | //by marshmellow | |
535 | //biphase decode | |
536 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 537 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
538 | // and "invert" default = 0 if 1 it will invert output | |
ba1a299c | 539 | // since it is not like manchester and doesn't have an incorrect bit pattern we |
d5a72d2f | 540 | // cannot determine if our decode is correct or if it should be shifted by one bit |
541 | // the argument offset allows us to manually shift if the output is incorrect | |
542 | // (better would be to demod and decode at the same time so we can distinguish large | |
543 | // width waves vs small width waves to help the decode positioning) or askbiphdemod | |
544 | int CmdBiphaseDecodeRaw(const char *Cmd) | |
545 | { | |
ba1a299c | 546 | size_t size=0; |
b41534d1 | 547 | int offset=0, invert=0, maxErr=20, errCnt=0; |
b4fb11ba | 548 | char cmdp = param_getchar(Cmd, 0); |
549 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
b41534d1 | 550 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); |
551 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
b4fb11ba | 552 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); |
553 | PrintAndLog(""); | |
554 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
555 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
b41534d1 | 556 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); |
b4fb11ba | 557 | PrintAndLog(""); |
558 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
559 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
560 | return 0; | |
561 | } | |
b41534d1 | 562 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); |
563 | if (DemodBufferLen==0){ | |
564 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
b4fb11ba | 565 | return 0; |
566 | } | |
b41534d1 | 567 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
568 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
569 | size = DemodBufferLen; | |
1e090a61 | 570 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
b41534d1 | 571 | if (errCnt<0){ |
572 | PrintAndLog("Error during decode:%d", errCnt); | |
573 | return 0; | |
574 | } | |
575 | if (errCnt>maxErr){ | |
b4fb11ba | 576 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); |
577 | return 0; | |
578 | } | |
b41534d1 | 579 | |
580 | if (errCnt>0){ | |
581 | PrintAndLog("# Errors found during Demod (shown as 77 in bit stream): %d",errCnt); | |
582 | } | |
583 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
ba1a299c | 584 | printBitStream(BitStream, size); |
b41534d1 | 585 | |
586 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
b4fb11ba | 587 | return 1; |
eb191de6 | 588 | } |
589 | ||
8d960002 | 590 | // set demod buffer back to raw after biphase demod |
b41534d1 | 591 | void setBiphasetoRawDemodBuf(uint8_t *BitStream, size_t size) |
8d960002 | 592 | { |
593 | uint8_t rawStream[512]={0x00}; | |
594 | size_t i=0; | |
595 | uint8_t curPhase=0; | |
596 | if (size > 256) { | |
597 | PrintAndLog("ERROR - Biphase Demod Buffer overrun"); | |
598 | return; | |
599 | } | |
600 | for (size_t idx=0; idx<size; idx++){ | |
ada339a1 | 601 | if(!BitStream[idx]){ |
8d960002 | 602 | rawStream[i++] = curPhase; |
603 | rawStream[i++] = curPhase; | |
604 | curPhase ^= 1; | |
605 | } else { | |
606 | rawStream[i++] = curPhase; | |
607 | rawStream[i++] = curPhase ^ 1; | |
608 | } | |
609 | } | |
610 | setDemodBuf(rawStream,i,0); | |
611 | return; | |
612 | } | |
b41534d1 | 613 | |
eb191de6 | 614 | //by marshmellow |
6de43508 | 615 | //takes 4 arguments - clock, invert, maxErr as integers and amplify as char |
eb191de6 | 616 | //attempts to demodulate ask only |
617 | //prints binary found and saves in graphbuffer for further commands | |
3ac59c7f | 618 | int ASKrawDemod(const char *Cmd, bool verbose) |
eb191de6 | 619 | { |
b4fb11ba | 620 | int invert=0; |
621 | int clk=0; | |
e770c648 | 622 | int maxErr=100; |
6de43508 | 623 | uint8_t askAmp = 0; |
624 | char amp = param_getchar(Cmd, 0); | |
eb191de6 | 625 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b4fb11ba | 626 | sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &); |
eb191de6 | 627 | if (invert != 0 && invert != 1) { |
b41534d1 | 628 | if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd); |
eb191de6 | 629 | return 0; |
630 | } | |
6de43508 | 631 | if (clk==1){ |
632 | invert=1; | |
633 | clk=0; | |
634 | } | |
635 | if (amp == 'a' || amp == 'A') askAmp=1; | |
b4fb11ba | 636 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 637 | if (BitLen==0) return 0; |
eb191de6 | 638 | int errCnt=0; |
b4fb11ba | 639 | errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp); |
640 | if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
b41534d1 | 641 | if (verbose || g_debugMode) PrintAndLog("no data found"); |
642 | if (g_debugMode) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert); | |
eb191de6 | 643 | return 0; |
b4fb11ba | 644 | } |
b41534d1 | 645 | if (verbose || g_debugMode) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen); |
ec75f5c1 | 646 | |
647 | //move BitStream back to DemodBuffer | |
b4fb11ba | 648 | setDemodBuf(BitStream,BitLen,0); |
ba1a299c | 649 | |
b4fb11ba | 650 | //output |
b41534d1 | 651 | if (errCnt>0 && (verbose || g_debugMode)){ |
e770c648 | 652 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt); |
eb191de6 | 653 | } |
b41534d1 | 654 | if (verbose || g_debugMode){ |
3ac59c7f | 655 | PrintAndLog("ASK demoded bitstream:"); |
656 | // Now output the bitstream to the scrollback by line of 16 bits | |
657 | printBitStream(BitStream,BitLen); | |
658 | } | |
f822a063 | 659 | return 1; |
e888ed8e | 660 | } |
661 | ||
b41534d1 | 662 | //by marshmellow |
663 | // - ASK Demod then Biphase decode GraphBuffer samples | |
664 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
665 | { | |
666 | //ask raw demod GraphBuffer first | |
667 | int offset=0, clk=0, invert=0, maxErr=0, ans=0; | |
668 | ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
669 | if (ans>0) | |
670 | ans = ASKrawDemod(Cmd+2, FALSE); | |
671 | else | |
672 | ans = ASKrawDemod(Cmd, FALSE); | |
673 | if (!ans) { | |
674 | if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans); | |
675 | return 0; | |
676 | } | |
677 | ||
678 | //attempt to Biphase decode DemodBuffer | |
679 | size_t size = DemodBufferLen; | |
680 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
681 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
682 | ||
683 | int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
684 | if (errCnt < 0){ | |
685 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
686 | return 0; | |
687 | } | |
688 | if (errCnt > maxErr) { | |
689 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
690 | return 0; | |
691 | } | |
692 | //success set DemodBuffer and return | |
693 | setDemodBuf(BitStream, size, 0); | |
694 | if (g_debugMode || verbose){ | |
695 | PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); | |
696 | printDemodBuff(); | |
697 | } | |
698 | return 1; | |
699 | } | |
700 | //by marshmellow - see ASKbiphaseDemod | |
701 | int Cmdaskbiphdemod(const char *Cmd) | |
702 | { | |
703 | char cmdp = param_getchar(Cmd, 0); | |
704 | if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { | |
705 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>"); | |
706 | PrintAndLog(" [offset], offset to begin biphase, default=0"); | |
707 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
708 | PrintAndLog(" <invert>, 1 to invert output"); | |
709 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
710 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
711 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
712 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
713 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
714 | PrintAndLog(""); | |
715 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); | |
716 | PrintAndLog(" : data rawdemod ab a = demod an ask/biph tag from GraphBuffer, amplified"); | |
717 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
718 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
719 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
720 | PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
721 | PrintAndLog(" : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
722 | return 0; | |
723 | } | |
724 | return ASKbiphaseDemod(Cmd, TRUE); | |
725 | } | |
726 | ||
8d960002 | 727 | //by marshmellow |
728 | //attempts to demodulate and identify a G_Prox_II verex/chubb card | |
729 | //WARNING: if it fails during some points it will destroy the DemodBuffer data | |
730 | // but will leave the GraphBuffer intact. | |
731 | //if successful it will push askraw data back to demod buffer ready for emulation | |
732 | int CmdG_Prox_II_Demod(const char *Cmd) | |
733 | { | |
b41534d1 | 734 | if (!ASKbiphaseDemod(Cmd, FALSE)){ |
735 | if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try"); | |
736 | return 0; | |
8d960002 | 737 | } |
738 | size_t size = DemodBufferLen; | |
8d960002 | 739 | //call lfdemod.c demod for gProxII |
b41534d1 | 740 | int ans = gProxII_Demod(DemodBuffer, &size); |
8d960002 | 741 | if (ans < 0){ |
b41534d1 | 742 | if (g_debugMode) PrintAndLog("Error gProxII_Demod"); |
743 | return 0; | |
8d960002 | 744 | } |
8d960002 | 745 | //got a good demod |
746 | uint32_t ByteStream[65] = {0x00}; | |
747 | uint8_t xorKey=0; | |
748 | uint8_t keyCnt=0; | |
749 | uint8_t bitCnt=0; | |
750 | uint8_t ByteCnt=0; | |
751 | size_t startIdx = ans + 6; //start after preamble | |
752 | for (size_t idx = 0; idx<size-6; idx++){ | |
753 | if ((idx+1) % 5 == 0){ | |
754 | //spacer bit - should be 0 | |
755 | if (DemodBuffer[startIdx+idx] != 0) { | |
756 | if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx); | |
b41534d1 | 757 | return 0; |
8d960002 | 758 | } |
759 | continue; | |
760 | } | |
761 | if (keyCnt<8){ //lsb first | |
762 | xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt); | |
763 | keyCnt++; | |
764 | if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey); | |
765 | continue; | |
766 | } | |
767 | //lsb first | |
768 | ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt); | |
769 | bitCnt++; | |
770 | if (bitCnt % 8 == 0){ | |
771 | if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]); | |
772 | bitCnt=0; | |
773 | ByteCnt++; | |
774 | } | |
775 | } | |
776 | for (uint8_t i = 0; i < ByteCnt; i++){ | |
777 | ByteStream[i] ^= xorKey; //xor | |
778 | if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]); | |
779 | } | |
780 | //now ByteStream contains 64 bytes of decrypted raw tag data | |
781 | // | |
782 | uint8_t fmtLen = ByteStream[0]>>2; | |
783 | uint32_t FC = 0; | |
784 | uint32_t Card = 0; | |
785 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); | |
786 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
787 | uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); | |
788 | ||
789 | if (fmtLen==36){ | |
790 | FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); | |
791 | Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); | |
792 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
793 | } else if(fmtLen==26){ | |
794 | FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); | |
795 | Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); | |
796 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
797 | } else { | |
798 | PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen); | |
799 | } | |
800 | PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); | |
b41534d1 | 801 | setDemodBuf(DemodBuffer+ans, 96, 0); |
8d960002 | 802 | return 1; |
803 | } | |
804 | ||
3ac59c7f | 805 | //by marshmellow - see ASKrawDemod |
806 | int Cmdaskrawdemod(const char *Cmd) | |
807 | { | |
808 | char cmdp = param_getchar(Cmd, 0); | |
809 | if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { | |
810 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]"); | |
811 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
812 | PrintAndLog(" <invert>, 1 to invert output"); | |
813 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
814 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
815 | PrintAndLog(""); | |
816 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); | |
817 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
818 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
819 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
820 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
821 | PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
822 | PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
823 | return 0; | |
824 | } | |
825 | return ASKrawDemod(Cmd, TRUE); | |
826 | } | |
827 | ||
73d04bb4 | 828 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) |
7fe9b0b7 | 829 | { |
830 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; | |
73d04bb4 | 831 | size_t Correlation = 0; |
832 | int maxSum = 0; | |
833 | int lastMax = 0; | |
834 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
7fe9b0b7 | 835 | for (int i = 0; i < GraphTraceLen - window; ++i) { |
836 | int sum = 0; | |
837 | for (int j = 0; j < window; ++j) { | |
838 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
839 | } | |
840 | CorrelBuffer[i] = sum; | |
73d04bb4 | 841 | if (sum >= maxSum-100 && sum <= maxSum+100){ |
842 | //another max | |
843 | Correlation = i-lastMax; | |
844 | lastMax = i; | |
845 | if (sum > maxSum) maxSum = sum; | |
846 | } else if (sum > maxSum){ | |
847 | maxSum=sum; | |
848 | lastMax = i; | |
05446d5b | 849 | } |
73d04bb4 | 850 | } |
851 | if (Correlation==0){ | |
852 | //try again with wider margin | |
853 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
854 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
855 | //another max | |
856 | Correlation = i-lastMax; | |
857 | lastMax = i; | |
858 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
859 | } | |
860 | } | |
7fe9b0b7 | 861 | } |
73d04bb4 | 862 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); |
863 | ||
864 | if (SaveGrph){ | |
7fe9b0b7 | 865 | GraphTraceLen = GraphTraceLen - window; |
866 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
73d04bb4 | 867 | RepaintGraphWindow(); |
868 | } | |
869 | return Correlation; | |
870 | } | |
7fe9b0b7 | 871 | |
9f7bbd24 | 872 | int usage_data_autocorr(void) |
873 | { | |
874 | //print help | |
875 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
876 | PrintAndLog("Options: "); | |
877 | PrintAndLog(" h This help"); | |
878 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
879 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
7fe9b0b7 | 880 | return 0; |
881 | } | |
882 | ||
73d04bb4 | 883 | int CmdAutoCorr(const char *Cmd) |
884 | { | |
9f7bbd24 | 885 | char cmdp = param_getchar(Cmd, 0); |
886 | if (cmdp == 'h' || cmdp == 'H') | |
887 | return usage_data_autocorr(); | |
888 | int window = 4000; //set default | |
889 | char grph=0; | |
890 | bool updateGrph = FALSE; | |
891 | sscanf(Cmd, "%i %c", &window, &grph); | |
7fe9b0b7 | 892 | |
7fe9b0b7 | 893 | if (window >= GraphTraceLen) { |
894 | PrintAndLog("window must be smaller than trace (%d samples)", | |
895 | GraphTraceLen); | |
896 | return 0; | |
897 | } | |
9f7bbd24 | 898 | if (grph == 'g') updateGrph=TRUE; |
899 | return AutoCorrelate(window, updateGrph, TRUE); | |
7fe9b0b7 | 900 | } |
901 | ||
902 | int CmdBitsamples(const char *Cmd) | |
903 | { | |
904 | int cnt = 0; | |
90d74dc2 | 905 | uint8_t got[12288]; |
952a8bb5 | 906 | |
90d74dc2 | 907 | GetFromBigBuf(got,sizeof(got),0); |
908 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 909 | |
90d74dc2 | 910 | for (int j = 0; j < sizeof(got); j++) { |
7fe9b0b7 | 911 | for (int k = 0; k < 8; k++) { |
90d74dc2 | 912 | if(got[j] & (1 << (7 - k))) { |
7fe9b0b7 | 913 | GraphBuffer[cnt++] = 1; |
914 | } else { | |
915 | GraphBuffer[cnt++] = 0; | |
916 | } | |
917 | } | |
7fe9b0b7 | 918 | } |
919 | GraphTraceLen = cnt; | |
920 | RepaintGraphWindow(); | |
921 | return 0; | |
922 | } | |
923 | ||
924 | /* | |
925 | * Convert to a bitstream | |
926 | */ | |
927 | int CmdBitstream(const char *Cmd) | |
928 | { | |
929 | int i, j; | |
930 | int bit; | |
931 | int gtl; | |
932 | int clock; | |
933 | int low = 0; | |
934 | int high = 0; | |
935 | int hithigh, hitlow, first; | |
936 | ||
937 | /* Detect high and lows and clock */ | |
938 | for (i = 0; i < GraphTraceLen; ++i) | |
939 | { | |
940 | if (GraphBuffer[i] > high) | |
941 | high = GraphBuffer[i]; | |
942 | else if (GraphBuffer[i] < low) | |
943 | low = GraphBuffer[i]; | |
944 | } | |
945 | ||
946 | /* Get our clock */ | |
f3bf15e4 | 947 | clock = GetAskClock(Cmd, high, 1); |
7fe9b0b7 | 948 | gtl = ClearGraph(0); |
949 | ||
950 | bit = 0; | |
951 | for (i = 0; i < (int)(gtl / clock); ++i) | |
952 | { | |
953 | hithigh = 0; | |
954 | hitlow = 0; | |
955 | first = 1; | |
956 | /* Find out if we hit both high and low peaks */ | |
957 | for (j = 0; j < clock; ++j) | |
958 | { | |
959 | if (GraphBuffer[(i * clock) + j] == high) | |
960 | hithigh = 1; | |
961 | else if (GraphBuffer[(i * clock) + j] == low) | |
962 | hitlow = 1; | |
963 | /* it doesn't count if it's the first part of our read | |
964 | because it's really just trailing from the last sequence */ | |
965 | if (first && (hithigh || hitlow)) | |
966 | hithigh = hitlow = 0; | |
967 | else | |
968 | first = 0; | |
969 | ||
970 | if (hithigh && hitlow) | |
971 | break; | |
972 | } | |
973 | ||
974 | /* If we didn't hit both high and low peaks, we had a bit transition */ | |
975 | if (!hithigh || !hitlow) | |
976 | bit ^= 1; | |
977 | ||
978 | AppendGraph(0, clock, bit); | |
7fe9b0b7 | 979 | } |
ba1a299c | 980 | |
7fe9b0b7 | 981 | RepaintGraphWindow(); |
982 | return 0; | |
983 | } | |
984 | ||
985 | int CmdBuffClear(const char *Cmd) | |
986 | { | |
987 | UsbCommand c = {CMD_BUFF_CLEAR}; | |
988 | SendCommand(&c); | |
989 | ClearGraph(true); | |
990 | return 0; | |
991 | } | |
992 | ||
993 | int CmdDec(const char *Cmd) | |
994 | { | |
995 | for (int i = 0; i < (GraphTraceLen / 2); ++i) | |
996 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
997 | GraphTraceLen /= 2; | |
998 | PrintAndLog("decimated by 2"); | |
999 | RepaintGraphWindow(); | |
1000 | return 0; | |
1001 | } | |
698b649e MHS |
1002 | /** |
1003 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
1004 | * name until someone does an actual interpolation command, not just | |
1005 | * blindly repeating samples | |
1006 | * @param Cmd | |
1007 | * @return | |
1008 | */ | |
1009 | int CmdUndec(const char *Cmd) | |
1010 | { | |
c856ceae MHS |
1011 | if(param_getchar(Cmd, 0) == 'h') |
1012 | { | |
1013 | PrintAndLog("Usage: data undec [factor]"); | |
1014 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
1015 | PrintAndLog("Options: "); | |
1016 | PrintAndLog(" h This help"); | |
1017 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
1018 | PrintAndLog("Example: 'data undec 3'"); | |
1019 | return 0; | |
1020 | } | |
1021 | ||
1022 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
698b649e MHS |
1023 | //We have memory, don't we? |
1024 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
c856ceae MHS |
1025 | uint32_t g_index = 0 ,s_index = 0; |
1026 | while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) | |
698b649e | 1027 | { |
c856ceae MHS |
1028 | int count = 0; |
1029 | for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) | |
1030 | swap[s_index+count] = GraphBuffer[g_index]; | |
1031 | s_index+=count; | |
698b649e | 1032 | } |
698b649e | 1033 | |
c856ceae MHS |
1034 | memcpy(GraphBuffer,swap, s_index * sizeof(int)); |
1035 | GraphTraceLen = s_index; | |
1036 | RepaintGraphWindow(); | |
698b649e MHS |
1037 | return 0; |
1038 | } | |
7fe9b0b7 | 1039 | |
ec75f5c1 | 1040 | //by marshmellow |
1041 | //shift graph zero up or down based on input + or - | |
1042 | int CmdGraphShiftZero(const char *Cmd) | |
1043 | { | |
1044 | ||
1045 | int shift=0; | |
1046 | //set options from parameters entered with the command | |
1047 | sscanf(Cmd, "%i", &shift); | |
1048 | int shiftedVal=0; | |
1049 | for(int i = 0; i<GraphTraceLen; i++){ | |
1050 | shiftedVal=GraphBuffer[i]+shift; | |
1051 | if (shiftedVal>127) | |
1052 | shiftedVal=127; | |
1053 | else if (shiftedVal<-127) | |
1054 | shiftedVal=-127; | |
1055 | GraphBuffer[i]= shiftedVal; | |
1056 | } | |
1057 | CmdNorm(""); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
6de43508 | 1061 | //by marshmellow |
1062 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
1063 | //similar to dirtheshold, threshold, and askdemod commands | |
1064 | //takes a threshold length which is the measured length between two samples then determines an edge | |
1065 | int CmdAskEdgeDetect(const char *Cmd) | |
1066 | { | |
1067 | int thresLen = 25; | |
1068 | sscanf(Cmd, "%i", &thresLen); | |
1069 | int shift = 127; | |
1070 | int shiftedVal=0; | |
1071 | for(int i = 1; i<GraphTraceLen; i++){ | |
1072 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
1073 | shift=127; | |
1074 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down | |
1075 | shift=-127; | |
1076 | ||
1077 | shiftedVal=GraphBuffer[i]+shift; | |
1078 | ||
1079 | if (shiftedVal>127) | |
1080 | shiftedVal=127; | |
1081 | else if (shiftedVal<-127) | |
1082 | shiftedVal=-127; | |
1083 | GraphBuffer[i-1] = shiftedVal; | |
1084 | } | |
1085 | RepaintGraphWindow(); | |
1086 | //CmdNorm(""); | |
1087 | return 0; | |
1088 | } | |
1089 | ||
7fe9b0b7 | 1090 | /* Print our clock rate */ |
ba1a299c | 1091 | // uses data from graphbuffer |
f3bf15e4 | 1092 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. |
7fe9b0b7 | 1093 | int CmdDetectClockRate(const char *Cmd) |
1094 | { | |
f3bf15e4 | 1095 | char cmdp = param_getchar(Cmd, 0); |
1096 | if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { | |
1097 | PrintAndLog("Usage: data detectclock [modulation]"); | |
1098 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); | |
1099 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); | |
1100 | PrintAndLog(""); | |
1101 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
1102 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
1103 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
1104 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
1105 | } | |
1106 | int ans=0; | |
1107 | if (cmdp == 'a'){ | |
1108 | ans = GetAskClock("", true, false); | |
1109 | } else if (cmdp == 'f'){ | |
1110 | ans = GetFskClock("", true, false); | |
1111 | } else if (cmdp == 'n'){ | |
1112 | ans = GetNrzClock("", true, false); | |
1113 | } else if (cmdp == 'p'){ | |
1114 | ans = GetPskClock("", true, false); | |
1115 | } else { | |
1116 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
1117 | } | |
1118 | return ans; | |
7fe9b0b7 | 1119 | } |
66707a3b | 1120 | |
2fc2150e | 1121 | //by marshmellow |
eb191de6 | 1122 | //fsk raw demod and print binary |
6de43508 | 1123 | //takes 4 arguments - Clock, invert, fchigh, fclow |
1124 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
3ac59c7f | 1125 | int FSKrawDemod(const char *Cmd, bool verbose) |
b3b70669 | 1126 | { |
eb191de6 | 1127 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
b3b70669 | 1128 | //set defaults |
03e6bb4a | 1129 | int rfLen = 0; |
4ac906d1 | 1130 | int invert = 0; |
1131 | int fchigh = 0; | |
1132 | int fclow = 0; | |
3ac59c7f | 1133 | |
b3b70669 | 1134 | //set options from parameters entered with the command |
b4fb11ba | 1135 | sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); |
ba1a299c | 1136 | |
b3b70669 | 1137 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { |
b3b70669 | 1138 | if (rfLen==1){ |
1139 | invert=1; //if invert option only is used | |
03e6bb4a | 1140 | rfLen = 0; |
1141 | } | |
b4fb11ba | 1142 | } |
03e6bb4a | 1143 | |
eb191de6 | 1144 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b4fb11ba | 1145 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 1146 | if (BitLen==0) return 0; |
03e6bb4a | 1147 | //get field clock lengths |
1148 | uint16_t fcs=0; | |
e770c648 | 1149 | uint8_t dummy=0; |
03e6bb4a | 1150 | if (fchigh==0 || fclow == 0){ |
4ac906d1 | 1151 | fcs = countFC(BitStream, BitLen, &dummy); |
03e6bb4a | 1152 | if (fcs==0){ |
1153 | fchigh=10; | |
1154 | fclow=8; | |
1155 | }else{ | |
1156 | fchigh = (fcs >> 8) & 0xFF; | |
1157 | fclow = fcs & 0xFF; | |
1158 | } | |
1159 | } | |
1160 | //get bit clock length | |
1161 | if (rfLen==0){ | |
1162 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
1163 | if (rfLen == 0) rfLen = 50; | |
1164 | } | |
3ac59c7f | 1165 | if (verbose) PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); |
b4fb11ba | 1166 | int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); |
d5a72d2f | 1167 | if (size>0){ |
b4fb11ba | 1168 | setDemodBuf(BitStream,size,0); |
ba1a299c | 1169 | |
d5a72d2f | 1170 | // Now output the bitstream to the scrollback by line of 16 bits |
1171 | if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size | |
3ac59c7f | 1172 | if (verbose) { |
1173 | PrintAndLog("FSK decoded bitstream:"); | |
d5a72d2f | 1174 | printBitStream(BitStream,size); |
3ac59c7f | 1175 | } |
3f41e73c | 1176 | |
e770c648 | 1177 | return 1; |
d5a72d2f | 1178 | } else{ |
3ac59c7f | 1179 | if (verbose) PrintAndLog("no FSK data found"); |
eb191de6 | 1180 | } |
b3b70669 | 1181 | return 0; |
1182 | } | |
1183 | ||
3ac59c7f | 1184 | //by marshmellow |
1185 | //fsk raw demod and print binary | |
1186 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
1187 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
1188 | int CmdFSKrawdemod(const char *Cmd) | |
1189 | { | |
1190 | char cmdp = param_getchar(Cmd, 0); | |
1191 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1192 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); | |
1193 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
1194 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
1195 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
1196 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
1197 | PrintAndLog(""); | |
1198 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
1199 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
1200 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
1201 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
1202 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
1203 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
1204 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
1205 | return 0; | |
1206 | } | |
1207 | return FSKrawDemod(Cmd, TRUE); | |
1208 | } | |
1209 | ||
eb191de6 | 1210 | //by marshmellow (based on existing demod + holiman's refactor) |
1211 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
1212 | //print full HID Prox ID and some bit format details if found | |
b3b70669 | 1213 | int CmdFSKdemodHID(const char *Cmd) |
1214 | { | |
1215 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
b3b70669 | 1216 | uint32_t hi2=0, hi=0, lo=0; |
ba1a299c | 1217 | |
eb191de6 | 1218 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b4fb11ba | 1219 | size_t BitLen = getFromGraphBuf(BitStream); |
1220 | if (BitLen==0) return 0; | |
b3b70669 | 1221 | //get binary from fsk wave |
b4fb11ba | 1222 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); |
ec75f5c1 | 1223 | if (idx<0){ |
a1d17964 | 1224 | if (g_debugMode){ |
1225 | if (idx==-1){ | |
b4fb11ba | 1226 | PrintAndLog("DEBUG: Just Noise Detected"); |
a1d17964 | 1227 | } else if (idx == -2) { |
1228 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1229 | } else if (idx == -3) { | |
1230 | PrintAndLog("DEBUG: Preamble not found"); | |
1231 | } else if (idx == -4) { | |
1232 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
1233 | } else { | |
1234 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1235 | } | |
1236 | } | |
ec75f5c1 | 1237 | return 0; |
1238 | } | |
1239 | if (hi2==0 && hi==0 && lo==0) { | |
1240 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
eb191de6 | 1241 | return 0; |
1242 | } | |
1243 | if (hi2 != 0){ //extra large HID tags | |
b4fb11ba | 1244 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", |
eb191de6 | 1245 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); |
1246 | } | |
1247 | else { //standard HID tags <38 bits | |
d5a72d2f | 1248 | uint8_t fmtLen = 0; |
eb191de6 | 1249 | uint32_t fc = 0; |
1250 | uint32_t cardnum = 0; | |
1251 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
1252 | uint32_t lo2=0; | |
84871873 | 1253 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit |
eb191de6 | 1254 | uint8_t idx3 = 1; |
1255 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
1256 | lo2=lo2>>1; | |
1257 | idx3++; | |
b3b70669 | 1258 | } |
b4fb11ba | 1259 | fmtLen =idx3+19; |
eb191de6 | 1260 | fc =0; |
1261 | cardnum=0; | |
d5a72d2f | 1262 | if(fmtLen==26){ |
eb191de6 | 1263 | cardnum = (lo>>1)&0xFFFF; |
1264 | fc = (lo>>17)&0xFF; | |
1265 | } | |
d5a72d2f | 1266 | if(fmtLen==34){ |
eb191de6 | 1267 | cardnum = (lo>>1)&0xFFFF; |
1268 | fc= ((hi&1)<<15)|(lo>>17); | |
754a35e7 | 1269 | // this could also be QUADRAKEY. Uses 34bit HID. |
eb191de6 | 1270 | } |
d5a72d2f | 1271 | if(fmtLen==35){ |
eb191de6 | 1272 | cardnum = (lo>>1)&0xFFFFF; |
1273 | fc = ((hi&1)<<11)|(lo>>21); | |
b3b70669 | 1274 | } |
b3b70669 | 1275 | } |
eb191de6 | 1276 | else { //if bit 38 is not set then 37 bit format is used |
84871873 | 1277 | fmtLen = 37; |
1278 | fc = 0; | |
1279 | cardnum = 0; | |
1280 | if(fmtLen == 37){ | |
eb191de6 | 1281 | cardnum = (lo>>1)&0x7FFFF; |
1282 | fc = ((hi&0xF)<<12)|(lo>>20); | |
1283 | } | |
b4fb11ba | 1284 | } |
1285 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
eb191de6 | 1286 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, |
d5a72d2f | 1287 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); |
b3b70669 | 1288 | } |
ec75f5c1 | 1289 | setDemodBuf(BitStream,BitLen,idx); |
1290 | if (g_debugMode){ | |
1291 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
1292 | printDemodBuff(); | |
1293 | } | |
1294 | return 1; | |
1295 | } | |
1296 | ||
04d2721b | 1297 | //by marshmellow |
1298 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 1299 | //print full Paradox Prox ID and some bit format details if found |
1300 | int CmdFSKdemodParadox(const char *Cmd) | |
1301 | { | |
1302 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1303 | uint32_t hi2=0, hi=0, lo=0; | |
1304 | ||
1305 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1306 | size_t BitLen = getFromGraphBuf(BitStream); | |
e770c648 | 1307 | if (BitLen==0) return 0; |
ec75f5c1 | 1308 | //get binary from fsk wave |
a1d17964 | 1309 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); |
ec75f5c1 | 1310 | if (idx<0){ |
a1d17964 | 1311 | if (g_debugMode){ |
1312 | if (idx==-1){ | |
1313 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1314 | } else if (idx == -2) { | |
1315 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1316 | } else if (idx == -3) { | |
1317 | PrintAndLog("DEBUG: Preamble not found"); | |
1318 | } else if (idx == -4) { | |
1319 | PrintAndLog("DEBUG: Error in Manchester data"); | |
1320 | } else { | |
1321 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1322 | } | |
1323 | } | |
ec75f5c1 | 1324 | return 0; |
1325 | } | |
1326 | if (hi2==0 && hi==0 && lo==0){ | |
1327 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
1328 | return 0; | |
1329 | } | |
1330 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
1331 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
3ac59c7f | 1332 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); |
1333 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1334 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
abd6112f | 1335 | |
3ac59c7f | 1336 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", |
1337 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
ec75f5c1 | 1338 | setDemodBuf(BitStream,BitLen,idx); |
1339 | if (g_debugMode){ | |
1340 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
1341 | printDemodBuff(); | |
1342 | } | |
1343 | return 1; | |
b3b70669 | 1344 | } |
1345 | ||
2fc2150e | 1346 | //by marshmellow |
eb191de6 | 1347 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 |
1348 | //print ioprox ID and some format details | |
b3b70669 | 1349 | int CmdFSKdemodIO(const char *Cmd) |
1350 | { | |
1351 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1352 | //set defaults | |
b4fb11ba | 1353 | int idx=0; |
ec75f5c1 | 1354 | //something in graphbuffer? |
1355 | if (GraphTraceLen < 65) { | |
1356 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
1357 | return 0; | |
1358 | } | |
eb191de6 | 1359 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
b4fb11ba | 1360 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 1361 | if (BitLen==0) return 0; |
ec75f5c1 | 1362 | |
eb191de6 | 1363 | //get binary from fsk wave |
b4fb11ba | 1364 | idx = IOdemodFSK(BitStream,BitLen); |
eb191de6 | 1365 | if (idx<0){ |
a1d17964 | 1366 | if (g_debugMode){ |
1367 | if (idx==-1){ | |
1368 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1369 | } else if (idx == -2) { | |
1370 | PrintAndLog("DEBUG: not enough samples"); | |
1371 | } else if (idx == -3) { | |
1372 | PrintAndLog("DEBUG: error during fskdemod"); | |
1373 | } else if (idx == -4) { | |
1374 | PrintAndLog("DEBUG: Preamble not found"); | |
1375 | } else if (idx == -5) { | |
1376 | PrintAndLog("DEBUG: Separator bits not found"); | |
1377 | } else { | |
1378 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1379 | } | |
1380 | } | |
eb191de6 | 1381 | return 0; |
1382 | } | |
1383 | if (idx==0){ | |
ec75f5c1 | 1384 | if (g_debugMode==1){ |
1385 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); | |
1386 | if (BitLen > 92) printBitStream(BitStream,92); | |
1387 | } | |
d5a72d2f | 1388 | return 0; |
b3b70669 | 1389 | } |
b3b70669 | 1390 | //Index map |
1391 | //0 10 20 30 40 50 60 | |
1392 | //| | | | | | | | |
1393 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
1394 | //----------------------------------------------------------------------------- | |
1395 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
1396 | // | |
1397 | //XSF(version)facility:codeone+codetwo (raw) | |
1398 | //Handle the data | |
ec75f5c1 | 1399 | if (idx+64>BitLen) { |
1400 | if (g_debugMode==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen); | |
1401 | return 0; | |
1402 | } | |
eb191de6 | 1403 | PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]); |
b4fb11ba | 1404 | PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]); |
f822a063 | 1405 | PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]); |
1406 | PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); | |
1407 | PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); | |
1408 | PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); | |
1409 | PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); | |
ba1a299c | 1410 | |
eb191de6 | 1411 | uint32_t code = bytebits_to_byte(BitStream+idx,32); |
b4fb11ba | 1412 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); |
f822a063 | 1413 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 |
1414 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
eb191de6 | 1415 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 |
754a35e7 | 1416 | |
1417 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
1418 | uint16_t calccrc = 0; | |
1419 | ||
1420 | for (uint8_t i=1; i<6; ++i){ | |
1421 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
1422 | PrintAndLog("%d", calccrc); | |
1423 | } | |
1424 | calccrc &= 0xff; | |
1425 | calccrc = 0xff - calccrc; | |
1426 | ||
1427 | char *crcStr = (crc == calccrc) ? "ok": "!crc"; | |
1428 | ||
1429 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
1430 | ||
ec75f5c1 | 1431 | setDemodBuf(BitStream,64,idx); |
b4fb11ba | 1432 | if (g_debugMode){ |
ec75f5c1 | 1433 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); |
1434 | printDemodBuff(); | |
1435 | } | |
b4fb11ba | 1436 | return 1; |
b3b70669 | 1437 | } |
1e090a61 | 1438 | |
1e090a61 | 1439 | //by marshmellow |
1440 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1441 | //print full AWID Prox ID and some bit format details if found | |
1442 | int CmdFSKdemodAWID(const char *Cmd) | |
1443 | { | |
1444 | ||
ec75f5c1 | 1445 | //int verbose=1; |
1446 | //sscanf(Cmd, "%i", &verbose); | |
1e090a61 | 1447 | |
1448 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1449 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1450 | size_t size = getFromGraphBuf(BitStream); | |
e770c648 | 1451 | if (size==0) return 0; |
1e090a61 | 1452 | |
1453 | //get binary from fsk wave | |
a1d17964 | 1454 | int idx = AWIDdemodFSK(BitStream, &size); |
1e090a61 | 1455 | if (idx<=0){ |
ec75f5c1 | 1456 | if (g_debugMode==1){ |
1e090a61 | 1457 | if (idx == -1) |
ec75f5c1 | 1458 | PrintAndLog("DEBUG: Error - not enough samples"); |
1e090a61 | 1459 | else if (idx == -2) |
a1d17964 | 1460 | PrintAndLog("DEBUG: Error - only noise found"); |
1e090a61 | 1461 | else if (idx == -3) |
ec75f5c1 | 1462 | PrintAndLog("DEBUG: Error - problem during FSK demod"); |
1e090a61 | 1463 | else if (idx == -4) |
ec75f5c1 | 1464 | PrintAndLog("DEBUG: Error - AWID preamble not found"); |
1465 | else if (idx == -5) | |
a1d17964 | 1466 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); |
ec75f5c1 | 1467 | else |
1468 | PrintAndLog("DEBUG: Error %d",idx); | |
1e090a61 | 1469 | } |
1470 | return 0; | |
1471 | } | |
1472 | ||
1473 | // Index map | |
1474 | // 0 10 20 30 40 50 60 | |
1475 | // | | | | | | | | |
1476 | // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96 | |
1477 | // ----------------------------------------------------------------------------- | |
1478 | // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1 | |
1479 | // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96 | |
1480 | // |---26 bit---| |-----117----||-------------142-------------| | |
1481 | // b = format bit len, o = odd parity of last 3 bits | |
1482 | // f = facility code, c = card number | |
1483 | // w = wiegand parity | |
1484 | // (26 bit format shown) | |
1485 | ||
1486 | //get raw ID before removing parities | |
1487 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1488 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1489 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
ec75f5c1 | 1490 | setDemodBuf(BitStream,96,idx); |
1491 | ||
1e090a61 | 1492 | size = removeParity(BitStream, idx+8, 4, 1, 88); |
1493 | if (size != 66){ | |
ec75f5c1 | 1494 | if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); |
1e090a61 | 1495 | return 0; |
1496 | } | |
1497 | // ok valid card found! | |
1498 | ||
1499 | // Index map | |
1500 | // 0 10 20 30 40 50 60 | |
1501 | // | | | | | | | | |
1502 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1503 | // ----------------------------------------------------------------------------- | |
1504 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1505 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1506 | // |26 bit| |-117--| |-----142------| | |
1507 | // b = format bit len, o = odd parity of last 3 bits | |
1508 | // f = facility code, c = card number | |
1509 | // w = wiegand parity | |
1510 | // (26 bit format shown) | |
1511 | ||
1512 | uint32_t fc = 0; | |
1513 | uint32_t cardnum = 0; | |
1514 | uint32_t code1 = 0; | |
1515 | uint32_t code2 = 0; | |
1516 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1517 | if (fmtLen==26){ | |
1518 | fc = bytebits_to_byte(BitStream+9, 8); | |
1519 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1520 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
3ac59c7f | 1521 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); |
1e090a61 | 1522 | } else { |
1523 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1524 | if (fmtLen>32){ | |
1525 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1526 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
3ac59c7f | 1527 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); |
1e090a61 | 1528 | } else{ |
1529 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
3ac59c7f | 1530 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); |
1e090a61 | 1531 | } |
1532 | } | |
ec75f5c1 | 1533 | if (g_debugMode){ |
1534 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1535 | printDemodBuff(); | |
1536 | } | |
1e090a61 | 1537 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands |
1e090a61 | 1538 | return 1; |
1539 | } | |
1540 | ||
1541 | //by marshmellow | |
1542 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1543 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1544 | int CmdFSKdemodPyramid(const char *Cmd) | |
1545 | { | |
1e090a61 | 1546 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1547 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1548 | size_t size = getFromGraphBuf(BitStream); | |
e770c648 | 1549 | if (size==0) return 0; |
1e090a61 | 1550 | |
1551 | //get binary from fsk wave | |
a1d17964 | 1552 | int idx = PyramiddemodFSK(BitStream, &size); |
1e090a61 | 1553 | if (idx < 0){ |
ec75f5c1 | 1554 | if (g_debugMode==1){ |
1e090a61 | 1555 | if (idx == -5) |
ec75f5c1 | 1556 | PrintAndLog("DEBUG: Error - not enough samples"); |
1e090a61 | 1557 | else if (idx == -1) |
a1d17964 | 1558 | PrintAndLog("DEBUG: Error - only noise found"); |
1e090a61 | 1559 | else if (idx == -2) |
ec75f5c1 | 1560 | PrintAndLog("DEBUG: Error - problem during FSK demod"); |
1561 | else if (idx == -3) | |
a1d17964 | 1562 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); |
1e090a61 | 1563 | else if (idx == -4) |
ec75f5c1 | 1564 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); |
1565 | else | |
1566 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1e090a61 | 1567 | } |
1e090a61 | 1568 | return 0; |
1569 | } | |
1e090a61 | 1570 | // Index map |
1571 | // 0 10 20 30 40 50 60 | |
1572 | // | | | | | | | | |
1573 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1574 | // ----------------------------------------------------------------------------- | |
1575 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1576 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1577 | ||
1578 | // 64 70 80 90 100 110 120 | |
1579 | // | | | | | | | | |
1580 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1581 | // ----------------------------------------------------------------------------- | |
1582 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1583 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1584 | // |---115---||---------71---------| | |
1585 | // s = format start bit, o = odd parity of last 7 bits | |
1586 | // f = facility code, c = card number | |
1587 | // w = wiegand parity, x = extra space for other formats | |
1588 | // p = unknown checksum | |
1589 | // (26 bit format shown) | |
73d04bb4 | 1590 | |
1591 | //get bytes for checksum calc | |
1592 | uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); | |
1593 | uint8_t csBuff[14] = {0x00}; | |
1594 | for (uint8_t i = 0; i < 13; i++){ | |
1595 | csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); | |
1596 | } | |
1597 | //check checksum calc | |
e74fc2ec | 1598 | //checksum calc thanks to ICEMAN!! |
9f7bbd24 | 1599 | uint32_t checkCS = CRC8Maxim(csBuff,13); |
73d04bb4 | 1600 | |
1e090a61 | 1601 | //get raw ID before removing parities |
1602 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1603 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1604 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1605 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
ec75f5c1 | 1606 | setDemodBuf(BitStream,128,idx); |
1607 | ||
1e090a61 | 1608 | size = removeParity(BitStream, idx+8, 8, 1, 120); |
1609 | if (size != 105){ | |
73d04bb4 | 1610 | if (g_debugMode==1) |
1611 | PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); | |
1e090a61 | 1612 | return 0; |
1613 | } | |
1614 | ||
1615 | // ok valid card found! | |
1616 | ||
1617 | // Index map | |
1618 | // 0 10 20 30 40 50 60 70 | |
1619 | // | | | | | | | | | |
1620 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1621 | // ----------------------------------------------------------------------- | |
1622 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1623 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1624 | ||
1625 | // 71 80 90 100 | |
1626 | // | | | | | |
1627 | // 1 2 34567890 1234567890123456 7 8901234 | |
1628 | // --------------------------------------- | |
1629 | // 1 1 01110011 0000000001000110 0 1001010 | |
1630 | // s w ffffffff cccccccccccccccc w ppppppp | |
1631 | // |--115-| |------71------| | |
1632 | // s = format start bit, o = odd parity of last 7 bits | |
1633 | // f = facility code, c = card number | |
1634 | // w = wiegand parity, x = extra space for other formats | |
1635 | // p = unknown checksum | |
1636 | // (26 bit format shown) | |
1637 | ||
1638 | //find start bit to get fmtLen | |
1e090a61 | 1639 | int j; |
1640 | for (j=0; j<size; j++){ | |
ec75f5c1 | 1641 | if(BitStream[j]) break; |
1e090a61 | 1642 | } |
1643 | uint8_t fmtLen = size-j-8; | |
1644 | uint32_t fc = 0; | |
1645 | uint32_t cardnum = 0; | |
1646 | uint32_t code1 = 0; | |
1647 | //uint32_t code2 = 0; | |
1648 | if (fmtLen==26){ | |
1649 | fc = bytebits_to_byte(BitStream+73, 8); | |
1650 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1651 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
3ac59c7f | 1652 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1653 | } else if (fmtLen==45){ |
1654 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1655 | fc = bytebits_to_byte(BitStream+53, 10); | |
1656 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
3ac59c7f | 1657 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1658 | } else { |
1659 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1660 | if (fmtLen>32){ | |
1661 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1662 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
3ac59c7f | 1663 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1664 | } else{ |
1665 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
3ac59c7f | 1666 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1667 | } |
1668 | } | |
73d04bb4 | 1669 | if (checksum == checkCS) |
1670 | PrintAndLog("Checksum %02x passed", checksum); | |
1671 | else | |
1672 | PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); | |
1673 | ||
ec75f5c1 | 1674 | if (g_debugMode){ |
1675 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1676 | printDemodBuff(); | |
1677 | } | |
1e090a61 | 1678 | return 1; |
1679 | } | |
1680 | ||
e888ed8e | 1681 | int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating |
7fe9b0b7 | 1682 | { |
1683 | static const int LowTone[] = { | |
1684 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1685 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1686 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1687 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1688 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1 | |
1689 | }; | |
1690 | static const int HighTone[] = { | |
1691 | 1, 1, 1, 1, 1, -1, -1, -1, -1, | |
1692 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1693 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1694 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1695 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1696 | 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1697 | }; | |
1698 | ||
1699 | int lowLen = sizeof (LowTone) / sizeof (int); | |
1700 | int highLen = sizeof (HighTone) / sizeof (int); | |
b915fda3 | 1701 | int convLen = (highLen > lowLen) ? highLen : lowLen; |
7fe9b0b7 | 1702 | uint32_t hi = 0, lo = 0; |
1703 | ||
1704 | int i, j; | |
1705 | int minMark = 0, maxMark = 0; | |
952a8bb5 | 1706 | |
7fe9b0b7 | 1707 | for (i = 0; i < GraphTraceLen - convLen; ++i) { |
1708 | int lowSum = 0, highSum = 0; | |
1709 | ||
1710 | for (j = 0; j < lowLen; ++j) { | |
1711 | lowSum += LowTone[j]*GraphBuffer[i+j]; | |
1712 | } | |
1713 | for (j = 0; j < highLen; ++j) { | |
1714 | highSum += HighTone[j] * GraphBuffer[i + j]; | |
1715 | } | |
1716 | lowSum = abs(100 * lowSum / lowLen); | |
1717 | highSum = abs(100 * highSum / highLen); | |
1718 | GraphBuffer[i] = (highSum << 16) | lowSum; | |
1719 | } | |
1720 | ||
1721 | for(i = 0; i < GraphTraceLen - convLen - 16; ++i) { | |
1722 | int lowTot = 0, highTot = 0; | |
1723 | // 10 and 8 are f_s divided by f_l and f_h, rounded | |
1724 | for (j = 0; j < 10; ++j) { | |
1725 | lowTot += (GraphBuffer[i+j] & 0xffff); | |
1726 | } | |
1727 | for (j = 0; j < 8; j++) { | |
1728 | highTot += (GraphBuffer[i + j] >> 16); | |
1729 | } | |
1730 | GraphBuffer[i] = lowTot - highTot; | |
1731 | if (GraphBuffer[i] > maxMark) maxMark = GraphBuffer[i]; | |
1732 | if (GraphBuffer[i] < minMark) minMark = GraphBuffer[i]; | |
1733 | } | |
1734 | ||
1735 | GraphTraceLen -= (convLen + 16); | |
1736 | RepaintGraphWindow(); | |
1737 | ||
b3b70669 | 1738 | // Find bit-sync (3 lo followed by 3 high) (HID ONLY) |
7fe9b0b7 | 1739 | int max = 0, maxPos = 0; |
1740 | for (i = 0; i < 6000; ++i) { | |
1741 | int dec = 0; | |
1742 | for (j = 0; j < 3 * lowLen; ++j) { | |
1743 | dec -= GraphBuffer[i + j]; | |
1744 | } | |
1745 | for (; j < 3 * (lowLen + highLen ); ++j) { | |
1746 | dec += GraphBuffer[i + j]; | |
1747 | } | |
1748 | if (dec > max) { | |
1749 | max = dec; | |
1750 | maxPos = i; | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | // place start of bit sync marker in graph | |
1755 | GraphBuffer[maxPos] = maxMark; | |
1756 | GraphBuffer[maxPos + 1] = minMark; | |
1757 | ||
1758 | maxPos += j; | |
1759 | ||
1760 | // place end of bit sync marker in graph | |
1761 | GraphBuffer[maxPos] = maxMark; | |
1762 | GraphBuffer[maxPos+1] = minMark; | |
1763 | ||
1764 | PrintAndLog("actual data bits start at sample %d", maxPos); | |
1765 | PrintAndLog("length %d/%d", highLen, lowLen); | |
ba1a299c | 1766 | |
a1557c4c | 1767 | uint8_t bits[46] = {0x00}; |
ba1a299c | 1768 | |
7fe9b0b7 | 1769 | // find bit pairs and manchester decode them |
1770 | for (i = 0; i < arraylen(bits) - 1; ++i) { | |
1771 | int dec = 0; | |
1772 | for (j = 0; j < lowLen; ++j) { | |
1773 | dec -= GraphBuffer[maxPos + j]; | |
1774 | } | |
1775 | for (; j < lowLen + highLen; ++j) { | |
1776 | dec += GraphBuffer[maxPos + j]; | |
1777 | } | |
1778 | maxPos += j; | |
1779 | // place inter bit marker in graph | |
1780 | GraphBuffer[maxPos] = maxMark; | |
1781 | GraphBuffer[maxPos + 1] = minMark; | |
1782 | ||
1783 | // hi and lo form a 64 bit pair | |
1784 | hi = (hi << 1) | (lo >> 31); | |
1785 | lo = (lo << 1); | |
1786 | // store decoded bit as binary (in hi/lo) and text (in bits[]) | |
1787 | if(dec < 0) { | |
1788 | bits[i] = '1'; | |
1789 | lo |= 1; | |
1790 | } else { | |
1791 | bits[i] = '0'; | |
1792 | } | |
1793 | } | |
1794 | PrintAndLog("bits: '%s'", bits); | |
1795 | PrintAndLog("hex: %08x %08x", hi, lo); | |
1796 | return 0; | |
1797 | } | |
e888ed8e | 1798 | |
ec75f5c1 | 1799 | //by marshmellow |
e770c648 | 1800 | //attempt to psk1 demod graph buffer |
3ac59c7f | 1801 | int PSKDemod(const char *Cmd, bool verbose) |
1e090a61 | 1802 | { |
e770c648 | 1803 | int invert=0; |
1804 | int clk=0; | |
1805 | int maxErr=100; | |
1806 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1807 | if (clk==1){ | |
1808 | invert=1; | |
1809 | clk=0; | |
03e6bb4a | 1810 | } |
e770c648 | 1811 | if (invert != 0 && invert != 1) { |
3ac59c7f | 1812 | if (verbose) PrintAndLog("Invalid argument: %s", Cmd); |
db693638 | 1813 | return 0; |
03e6bb4a | 1814 | } |
e770c648 | 1815 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
1816 | size_t BitLen = getFromGraphBuf(BitStream); | |
3f41e73c | 1817 | if (BitLen==0) return -1; |
1818 | uint8_t carrier=countPSK_FC(BitStream, BitLen); | |
ec9882b1 | 1819 | if (carrier!=2 && carrier!=4 && carrier!=8){ |
3f41e73c | 1820 | //invalid carrier |
db693638 | 1821 | return 0; |
3f41e73c | 1822 | } |
e770c648 | 1823 | int errCnt=0; |
3f41e73c | 1824 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); |
e770c648 | 1825 | if (errCnt > maxErr){ |
3ac59c7f | 1826 | if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
db693638 | 1827 | return 0; |
e770c648 | 1828 | } |
1829 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
3ac59c7f | 1830 | if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
db693638 | 1831 | return 0; |
1832 | } | |
7a8a982b | 1833 | if (verbose){ |
1834 | PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1835 | if (errCnt>0){ | |
1836 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); | |
1837 | } | |
e770c648 | 1838 | } |
e770c648 | 1839 | //prime demod buffer for output |
1840 | setDemodBuf(BitStream,BitLen,0); | |
db693638 | 1841 | return 1; |
4118b74d | 1842 | } |
1843 | ||
4118b74d | 1844 | // Indala 26 bit decode |
1845 | // by marshmellow | |
1846 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1847 | int CmdIndalaDecode(const char *Cmd) | |
1848 | { | |
b4fb11ba | 1849 | int ans; |
1850 | if (strlen(Cmd)>0){ | |
1851 | ans = PSKDemod(Cmd, 0); | |
1852 | } else{ //default to RF/32 | |
1853 | ans = PSKDemod("32", 0); | |
1854 | } | |
4118b74d | 1855 | |
7a8a982b | 1856 | if (!ans){ |
ec75f5c1 | 1857 | if (g_debugMode==1) |
b4fb11ba | 1858 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1859 | return 0; |
1860 | } | |
1861 | uint8_t invert=0; | |
1862 | ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); | |
1863 | if (ans < 1) { | |
ec75f5c1 | 1864 | if (g_debugMode==1) |
b4fb11ba | 1865 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1866 | return -1; |
1867 | } | |
a1d17964 | 1868 | char showbits[251]={0x00}; |
84871873 | 1869 | if (invert) |
b4fb11ba | 1870 | if (g_debugMode==1) |
1871 | PrintAndLog("Had to invert bits"); | |
ec75f5c1 | 1872 | |
ba1a299c | 1873 | //convert UID to HEX |
1874 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
1875 | int idx; | |
1876 | uid1=0; | |
1877 | uid2=0; | |
1878 | PrintAndLog("BitLen: %d",DemodBufferLen); | |
1879 | if (DemodBufferLen==64){ | |
1880 | for( idx=0; idx<64; idx++) { | |
1881 | uid1=(uid1<<1)|(uid2>>31); | |
1882 | if (DemodBuffer[idx] == 0) { | |
1883 | uid2=(uid2<<1)|0; | |
1884 | showbits[idx]='0'; | |
1885 | } else { | |
1886 | uid2=(uid2<<1)|1; | |
1887 | showbits[idx]='1'; | |
1888 | } | |
1889 | } | |
1890 | showbits[idx]='\0'; | |
1891 | PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); | |
1892 | } | |
1893 | else { | |
1894 | uid3=0; | |
1895 | uid4=0; | |
1896 | uid5=0; | |
1897 | uid6=0; | |
1898 | uid7=0; | |
1899 | for( idx=0; idx<DemodBufferLen; idx++) { | |
1900 | uid1=(uid1<<1)|(uid2>>31); | |
1901 | uid2=(uid2<<1)|(uid3>>31); | |
1902 | uid3=(uid3<<1)|(uid4>>31); | |
1903 | uid4=(uid4<<1)|(uid5>>31); | |
1904 | uid5=(uid5<<1)|(uid6>>31); | |
1905 | uid6=(uid6<<1)|(uid7>>31); | |
1906 | if (DemodBuffer[idx] == 0) { | |
1907 | uid7=(uid7<<1)|0; | |
1908 | showbits[idx]='0'; | |
1909 | } | |
1910 | else { | |
1911 | uid7=(uid7<<1)|1; | |
1912 | showbits[idx]='1'; | |
1913 | } | |
1914 | } | |
1915 | showbits[idx]='\0'; | |
1916 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); | |
1917 | } | |
b4fb11ba | 1918 | if (g_debugMode){ |
1919 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1920 | printDemodBuff(); | |
1921 | } | |
ba1a299c | 1922 | return 1; |
4118b74d | 1923 | } |
1924 | ||
04d2721b | 1925 | // by marshmellow |
e770c648 | 1926 | // takes 3 arguments - clock, invert, maxErr as integers |
1927 | // attempts to demodulate nrz only | |
1928 | // prints binary found and saves in demodbuffer for further commands | |
3ac59c7f | 1929 | |
1930 | int NRZrawDemod(const char *Cmd, bool verbose) | |
4118b74d | 1931 | { |
e770c648 | 1932 | int invert=0; |
1933 | int clk=0; | |
1934 | int maxErr=100; | |
e770c648 | 1935 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); |
1936 | if (clk==1){ | |
1937 | invert=1; | |
1938 | clk=0; | |
1939 | } | |
1940 | if (invert != 0 && invert != 1) { | |
1941 | PrintAndLog("Invalid argument: %s", Cmd); | |
1942 | return 0; | |
1943 | } | |
1944 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1945 | size_t BitLen = getFromGraphBuf(BitStream); | |
1946 | if (BitLen==0) return 0; | |
1947 | int errCnt=0; | |
1948 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
1949 | if (errCnt > maxErr){ | |
3ac59c7f | 1950 | if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e770c648 | 1951 | return 0; |
1952 | } | |
1953 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
3ac59c7f | 1954 | if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e770c648 | 1955 | return 0; |
1956 | } | |
3ac59c7f | 1957 | if (verbose) |
1958 | PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
e770c648 | 1959 | //prime demod buffer for output |
1960 | setDemodBuf(BitStream,BitLen,0); | |
1961 | ||
3ac59c7f | 1962 | if (errCnt>0 && verbose){ |
e770c648 | 1963 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); |
e770c648 | 1964 | } |
3ac59c7f | 1965 | if (verbose) { |
e770c648 | 1966 | PrintAndLog("NRZ demoded bitstream:"); |
1967 | // Now output the bitstream to the scrollback by line of 16 bits | |
1968 | printDemodBuff(); | |
3ac59c7f | 1969 | } |
b4a2fcf6 | 1970 | return 1; |
4118b74d | 1971 | } |
1972 | ||
3ac59c7f | 1973 | int CmdNRZrawDemod(const char *Cmd) |
1974 | { | |
1975 | char cmdp = param_getchar(Cmd, 0); | |
1976 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1977 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); | |
1978 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1979 | PrintAndLog(" <invert>, 1 for invert output"); | |
1980 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1981 | PrintAndLog(""); | |
d66d4843 | 1982 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); |
1983 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1984 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1985 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1986 | PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
3ac59c7f | 1987 | return 0; |
1988 | } | |
1989 | return NRZrawDemod(Cmd, TRUE); | |
1990 | } | |
1991 | ||
04d2721b | 1992 | // by marshmellow |
e770c648 | 1993 | // takes 3 arguments - clock, invert, maxErr as integers |
04d2721b | 1994 | // attempts to demodulate psk only |
1995 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1996 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1997 | { |
db693638 | 1998 | int ans; |
e770c648 | 1999 | char cmdp = param_getchar(Cmd, 0); |
6de43508 | 2000 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { |
19ff0210 | 2001 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); |
e770c648 | 2002 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); |
2003 | PrintAndLog(" <invert>, 1 for invert output"); | |
2004 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
2005 | PrintAndLog(""); | |
d66d4843 | 2006 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); |
2007 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
2008 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
2009 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
2010 | PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
ec75f5c1 | 2011 | return 0; |
ec75f5c1 | 2012 | } |
db693638 | 2013 | ans = PSKDemod(Cmd, TRUE); |
b4fb11ba | 2014 | //output |
7a8a982b | 2015 | if (!ans){ |
db693638 | 2016 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); |
ec75f5c1 | 2017 | return 0; |
e770c648 | 2018 | } |
7a8a982b | 2019 | |
e770c648 | 2020 | PrintAndLog("PSK demoded bitstream:"); |
2021 | // Now output the bitstream to the scrollback by line of 16 bits | |
2022 | printDemodBuff(); | |
2023 | return 1; | |
4118b74d | 2024 | } |
2025 | ||
04d2721b | 2026 | // by marshmellow |
19ff0210 | 2027 | // takes same args as cmdpsk1rawdemod |
04d2721b | 2028 | int CmdPSK2rawDemod(const char *Cmd) |
2029 | { | |
db693638 | 2030 | int ans=0; |
e770c648 | 2031 | char cmdp = param_getchar(Cmd, 0); |
6de43508 | 2032 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { |
19ff0210 | 2033 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); |
e770c648 | 2034 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); |
2035 | PrintAndLog(" <invert>, 1 for invert output"); | |
2036 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
2037 | PrintAndLog(""); | |
d66d4843 | 2038 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); |
2039 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
2040 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
2041 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
2042 | PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); | |
e770c648 | 2043 | return 0; |
2044 | } | |
db693638 | 2045 | ans=PSKDemod(Cmd, TRUE); |
2046 | if (!ans){ | |
2047 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
04d2721b | 2048 | return 0; |
2049 | } | |
2050 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
db693638 | 2051 | PrintAndLog("PSK2 demoded bitstream:"); |
2052 | // Now output the bitstream to the scrollback by line of 16 bits | |
2053 | printDemodBuff(); | |
04d2721b | 2054 | return 1; |
2055 | } | |
2056 | ||
19ff0210 | 2057 | // by marshmellow - combines all raw demod functions into one menu command |
2058 | int CmdRawDemod(const char *Cmd) | |
2059 | { | |
2060 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
2061 | ||
2062 | if (strlen(Cmd) > 14 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { | |
2063 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); | |
b41534d1 | 2064 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
2065 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 2066 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
2067 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
2068 | PrintAndLog(""); | |
2069 | PrintAndLog(" sample: data rawdemod fs h = print help for ask/raw demod"); | |
2070 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); | |
b41534d1 | 2071 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 2072 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
2073 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
2074 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
2075 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
2076 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
2077 | return 0; | |
2078 | } | |
2079 | char cmdp2 = Cmd[1]; | |
2080 | int ans = 0; | |
2081 | if (cmdp == 'f' && cmdp2 == 's'){ | |
2082 | ans = CmdFSKrawdemod(Cmd+3); | |
b41534d1 | 2083 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
2084 | ans = Cmdaskbiphdemod(Cmd+3); | |
19ff0210 | 2085 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
2086 | ans = Cmdaskmandemod(Cmd+3); | |
2087 | } else if(cmdp == 'a' && cmdp2 == 'r'){ | |
2088 | ans = Cmdaskrawdemod(Cmd+3); | |
2089 | } else if(cmdp == 'n' && cmdp2 == 'r'){ | |
2090 | ans = CmdNRZrawDemod(Cmd+3); | |
2091 | } else if(cmdp == 'p' && cmdp2 == '1'){ | |
2092 | ans = CmdPSK1rawDemod(Cmd+3); | |
2093 | } else if(cmdp == 'p' && cmdp2 == '2'){ | |
2094 | ans = CmdPSK2rawDemod(Cmd+3); | |
2095 | } else { | |
2096 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
2097 | } | |
2098 | return ans; | |
2099 | } | |
2100 | ||
7fe9b0b7 | 2101 | int CmdGrid(const char *Cmd) |
2102 | { | |
2103 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); | |
7ddb9900 | 2104 | PlotGridXdefault= PlotGridX; |
2105 | PlotGridYdefault= PlotGridY; | |
7fe9b0b7 | 2106 | RepaintGraphWindow(); |
2107 | return 0; | |
2108 | } | |
2109 | ||
2110 | int CmdHexsamples(const char *Cmd) | |
2111 | { | |
4961e292 | 2112 | int i, j; |
7fe9b0b7 | 2113 | int requested = 0; |
2114 | int offset = 0; | |
4961e292 | 2115 | char string_buf[25]; |
2116 | char* string_ptr = string_buf; | |
f71f4deb | 2117 | uint8_t got[BIGBUF_SIZE]; |
952a8bb5 | 2118 | |
4961e292 | 2119 | sscanf(Cmd, "%i %i", &requested, &offset); |
90d74dc2 | 2120 | |
4961e292 | 2121 | /* if no args send something */ |
2122 | if (requested == 0) { | |
90d74dc2 | 2123 | requested = 8; |
2124 | } | |
90d74dc2 | 2125 | if (offset + requested > sizeof(got)) { |
f71f4deb | 2126 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); |
4961e292 | 2127 | return 0; |
952a8bb5 | 2128 | } |
90d74dc2 | 2129 | |
4961e292 | 2130 | GetFromBigBuf(got,requested,offset); |
90d74dc2 | 2131 | WaitForResponse(CMD_ACK,NULL); |
2132 | ||
4961e292 | 2133 | i = 0; |
2134 | for (j = 0; j < requested; j++) { | |
2135 | i++; | |
2136 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
2137 | if (i == 8) { | |
2138 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
2139 | PrintAndLog("%s", string_buf); | |
2140 | string_buf[0] = '\0'; | |
2141 | string_ptr = string_buf; | |
2142 | i = 0; | |
2143 | } | |
2144 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
2145 | *(string_ptr - 1) = '\0'; | |
2146 | PrintAndLog("%s", string_buf); | |
2147 | string_buf[0] = '\0'; | |
b4fb11ba | 2148 | } |
7fe9b0b7 | 2149 | } |
2150 | return 0; | |
2151 | } | |
2152 | ||
7fe9b0b7 | 2153 | int CmdHide(const char *Cmd) |
2154 | { | |
2155 | HideGraphWindow(); | |
2156 | return 0; | |
2157 | } | |
2158 | ||
78f5b1a7 | 2159 | //zero mean GraphBuffer |
7fe9b0b7 | 2160 | int CmdHpf(const char *Cmd) |
2161 | { | |
2162 | int i; | |
2163 | int accum = 0; | |
2164 | ||
2165 | for (i = 10; i < GraphTraceLen; ++i) | |
2166 | accum += GraphBuffer[i]; | |
2167 | accum /= (GraphTraceLen - 10); | |
2168 | for (i = 0; i < GraphTraceLen; ++i) | |
2169 | GraphBuffer[i] -= accum; | |
2170 | ||
2171 | RepaintGraphWindow(); | |
2172 | return 0; | |
2173 | } | |
f6d9fb17 MHS |
2174 | typedef struct { |
2175 | uint8_t * buffer; | |
2176 | uint32_t numbits; | |
2177 | uint32_t position; | |
2178 | }BitstreamOut; | |
2179 | ||
2180 | bool _headBit( BitstreamOut *stream) | |
2181 | { | |
2182 | int bytepos = stream->position >> 3; // divide by 8 | |
2183 | int bitpos = (stream->position++) & 7; // mask out 00000111 | |
2184 | return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; | |
2185 | } | |
2186 | ||
2187 | uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) | |
2188 | { | |
2189 | int i; | |
2190 | uint8_t val = 0; | |
2191 | for(i =0 ; i < bits_per_sample; i++) | |
2192 | { | |
2193 | val |= (_headBit(b) << (7-i)); | |
2194 | } | |
2195 | return val; | |
2196 | } | |
7fe9b0b7 | 2197 | |
8d183c53 | 2198 | int CmdSamples(const char *Cmd) |
7fe9b0b7 | 2199 | { |
31abe49f MHS |
2200 | //If we get all but the last byte in bigbuf, |
2201 | // we don't have to worry about remaining trash | |
2202 | // in the last byte in case the bits-per-sample | |
2203 | // does not line up on byte boundaries | |
0644d5e3 | 2204 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; |
ba1a299c | 2205 | |
d6d20c54 | 2206 | int n = strtol(Cmd, NULL, 0); |
2207 | if (n == 0) | |
31abe49f | 2208 | n = sizeof(got); |
d6d20c54 | 2209 | |
2210 | if (n > sizeof(got)) | |
2211 | n = sizeof(got); | |
ba1a299c | 2212 | |
f6d9fb17 | 2213 | PrintAndLog("Reading %d bytes from device memory\n", n); |
f71f4deb | 2214 | GetFromBigBuf(got,n,0); |
f6d9fb17 MHS |
2215 | PrintAndLog("Data fetched"); |
2216 | UsbCommand response; | |
2217 | WaitForResponse(CMD_ACK, &response); | |
31abe49f MHS |
2218 | uint8_t bits_per_sample = 8; |
2219 | ||
2220 | //Old devices without this feature would send 0 at arg[0] | |
2221 | if(response.arg[0] > 0) | |
2222 | { | |
2223 | sample_config *sc = (sample_config *) response.d.asBytes; | |
2224 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
2225 | , sc->decimation); | |
2226 | bits_per_sample = sc->bits_per_sample; | |
f71f4deb | 2227 | } |
f6d9fb17 MHS |
2228 | if(bits_per_sample < 8) |
2229 | { | |
2230 | PrintAndLog("Unpacking..."); | |
2231 | BitstreamOut bout = { got, bits_per_sample * n, 0}; | |
2232 | int j =0; | |
31abe49f | 2233 | for (j = 0; j * bits_per_sample < n * 8 && j < sizeof(GraphBuffer); j++) { |
f6d9fb17 MHS |
2234 | uint8_t sample = getByte(bits_per_sample, &bout); |
2235 | GraphBuffer[j] = ((int) sample )- 128; | |
2236 | } | |
2237 | GraphTraceLen = j; | |
2238 | PrintAndLog("Unpacked %d samples" , j ); | |
2239 | }else | |
2240 | { | |
2241 | for (int j = 0; j < n; j++) { | |
2242 | GraphBuffer[j] = ((int)got[j]) - 128; | |
2243 | } | |
2244 | GraphTraceLen = n; | |
f6d9fb17 MHS |
2245 | } |
2246 | ||
f71f4deb | 2247 | RepaintGraphWindow(); |
2248 | return 0; | |
7fe9b0b7 | 2249 | } |
2250 | ||
d6a120a2 MHS |
2251 | int CmdTuneSamples(const char *Cmd) |
2252 | { | |
3aa4014b | 2253 | int timeout = 0; |
2254 | printf("\nMeasuring antenna characteristics, please wait..."); | |
ba1a299c | 2255 | |
3aa4014b | 2256 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; |
2257 | SendCommand(&c); | |
2258 | ||
2259 | UsbCommand resp; | |
2260 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
2261 | timeout++; | |
2262 | printf("."); | |
2263 | if (timeout > 7) { | |
2264 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
2265 | return 1; | |
2266 | } | |
2267 | } | |
2268 | ||
2269 | int peakv, peakf; | |
2270 | int vLf125, vLf134, vHf; | |
2271 | vLf125 = resp.arg[0] & 0xffff; | |
2272 | vLf134 = resp.arg[0] >> 16; | |
2273 | vHf = resp.arg[1] & 0xffff;; | |
2274 | peakf = resp.arg[2] & 0xffff; | |
2275 | peakv = resp.arg[2] >> 16; | |
2276 | PrintAndLog(""); | |
2277 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
2278 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
2279 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
2280 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 2281 | |
2282 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. | |
2283 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
2284 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
2285 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
2286 | ||
2287 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 2288 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 2289 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 2290 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 2291 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 2292 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 2293 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 2294 | PrintAndLog("# Your HF antenna is marginal."); |
2295 | ||
0d0d0499 | 2296 | if (peakv >= LF_UNUSABLE_V) { |
2297 | for (int i = 0; i < 256; i++) { | |
2298 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
2299 | } | |
2300 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
2301 | PrintAndLog("\n"); | |
2302 | GraphTraceLen = 256; | |
2303 | ShowGraphWindow(); | |
abd16c45 | 2304 | RepaintGraphWindow(); |
ba1a299c | 2305 | } |
2306 | ||
b4fb11ba | 2307 | return 0; |
d6a120a2 MHS |
2308 | } |
2309 | ||
3aa4014b | 2310 | |
7fe9b0b7 | 2311 | int CmdLoad(const char *Cmd) |
2312 | { | |
ec75f5c1 | 2313 | char filename[FILE_PATH_SIZE] = {0x00}; |
2314 | int len = 0; | |
b915fda3 | 2315 | |
ec75f5c1 | 2316 | len = strlen(Cmd); |
2317 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2318 | memcpy(filename, Cmd, len); | |
b915fda3 | 2319 | |
ec75f5c1 | 2320 | FILE *f = fopen(filename, "r"); |
7fe9b0b7 | 2321 | if (!f) { |
b915fda3 | 2322 | PrintAndLog("couldn't open '%s'", filename); |
7fe9b0b7 | 2323 | return 0; |
2324 | } | |
2325 | ||
2326 | GraphTraceLen = 0; | |
2327 | char line[80]; | |
2328 | while (fgets(line, sizeof (line), f)) { | |
2329 | GraphBuffer[GraphTraceLen] = atoi(line); | |
2330 | GraphTraceLen++; | |
2331 | } | |
2332 | fclose(f); | |
2333 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
2334 | RepaintGraphWindow(); | |
2335 | return 0; | |
2336 | } | |
2337 | ||
2338 | int CmdLtrim(const char *Cmd) | |
2339 | { | |
2340 | int ds = atoi(Cmd); | |
2341 | ||
2342 | for (int i = ds; i < GraphTraceLen; ++i) | |
2343 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
2344 | GraphTraceLen -= ds; | |
2345 | ||
2346 | RepaintGraphWindow(); | |
2347 | return 0; | |
2348 | } | |
ec75f5c1 | 2349 | |
2350 | // trim graph to input argument length | |
9ec1416a | 2351 | int CmdRtrim(const char *Cmd) |
2352 | { | |
2353 | int ds = atoi(Cmd); | |
2354 | ||
2355 | GraphTraceLen = ds; | |
2356 | ||
2357 | RepaintGraphWindow(); | |
2358 | return 0; | |
2359 | } | |
7fe9b0b7 | 2360 | |
2361 | /* | |
2362 | * Manchester demodulate a bitstream. The bitstream needs to be already in | |
2363 | * the GraphBuffer as 0 and 1 values | |
2364 | * | |
2365 | * Give the clock rate as argument in order to help the sync - the algorithm | |
2366 | * resyncs at each pulse anyway. | |
2367 | * | |
2368 | * Not optimized by any means, this is the 1st time I'm writing this type of | |
2369 | * routine, feel free to improve... | |
2370 | * | |
2371 | * 1st argument: clock rate (as number of samples per clock rate) | |
2372 | * Typical values can be 64, 32, 128... | |
2373 | */ | |
2374 | int CmdManchesterDemod(const char *Cmd) | |
2375 | { | |
2376 | int i, j, invert= 0; | |
2377 | int bit; | |
2378 | int clock; | |
fddf220a | 2379 | int lastval = 0; |
7fe9b0b7 | 2380 | int low = 0; |
2381 | int high = 0; | |
2382 | int hithigh, hitlow, first; | |
2383 | int lc = 0; | |
2384 | int bitidx = 0; | |
2385 | int bit2idx = 0; | |
2386 | int warnings = 0; | |
2387 | ||
2388 | /* check if we're inverting output */ | |
c6f1fb9d | 2389 | if (*Cmd == 'i') |
7fe9b0b7 | 2390 | { |
2391 | PrintAndLog("Inverting output"); | |
2392 | invert = 1; | |
fffad860 | 2393 | ++Cmd; |
7fe9b0b7 | 2394 | do |
2395 | ++Cmd; | |
2396 | while(*Cmd == ' '); // in case a 2nd argument was given | |
2397 | } | |
2398 | ||
2399 | /* Holds the decoded bitstream: each clock period contains 2 bits */ | |
2400 | /* later simplified to 1 bit after manchester decoding. */ | |
2401 | /* Add 10 bits to allow for noisy / uncertain traces without aborting */ | |
2402 | /* int BitStream[GraphTraceLen*2/clock+10]; */ | |
2403 | ||
2404 | /* But it does not work if compiling on WIndows: therefore we just allocate a */ | |
2405 | /* large array */ | |
90e278d3 | 2406 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0}; |
7fe9b0b7 | 2407 | |
2408 | /* Detect high and lows */ | |
2409 | for (i = 0; i < GraphTraceLen; i++) | |
2410 | { | |
2411 | if (GraphBuffer[i] > high) | |
2412 | high = GraphBuffer[i]; | |
2413 | else if (GraphBuffer[i] < low) | |
2414 | low = GraphBuffer[i]; | |
2415 | } | |
2416 | ||
2417 | /* Get our clock */ | |
f3bf15e4 | 2418 | clock = GetAskClock(Cmd, high, 1); |
7fe9b0b7 | 2419 | |
2420 | int tolerance = clock/4; | |
2421 | ||
2422 | /* Detect first transition */ | |
2423 | /* Lo-Hi (arbitrary) */ | |
2424 | /* skip to the first high */ | |
2425 | for (i= 0; i < GraphTraceLen; i++) | |
2426 | if (GraphBuffer[i] == high) | |
2427 | break; | |
2428 | /* now look for the first low */ | |
2429 | for (; i < GraphTraceLen; i++) | |
2430 | { | |
2431 | if (GraphBuffer[i] == low) | |
2432 | { | |
2433 | lastval = i; | |
2434 | break; | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | /* If we're not working with 1/0s, demod based off clock */ | |
2439 | if (high != 1) | |
2440 | { | |
2441 | bit = 0; /* We assume the 1st bit is zero, it may not be | |
2442 | * the case: this routine (I think) has an init problem. | |
2443 | * Ed. | |
2444 | */ | |
2445 | for (; i < (int)(GraphTraceLen / clock); i++) | |
2446 | { | |
2447 | hithigh = 0; | |
2448 | hitlow = 0; | |
2449 | first = 1; | |
2450 | ||
2451 | /* Find out if we hit both high and low peaks */ | |
2452 | for (j = 0; j < clock; j++) | |
2453 | { | |
2454 | if (GraphBuffer[(i * clock) + j] == high) | |
2455 | hithigh = 1; | |
2456 | else if (GraphBuffer[(i * clock) + j] == low) | |
2457 | hitlow = 1; | |
2458 | ||
2459 | /* it doesn't count if it's the first part of our read | |
2460 | because it's really just trailing from the last sequence */ | |
2461 | if (first && (hithigh || hitlow)) | |
2462 | hithigh = hitlow = 0; | |
2463 | else | |
2464 | first = 0; | |
2465 | ||
2466 | if (hithigh && hitlow) | |
2467 | break; | |
2468 | } | |
2469 | ||
2470 | /* If we didn't hit both high and low peaks, we had a bit transition */ | |
2471 | if (!hithigh || !hitlow) | |
2472 | bit ^= 1; | |
2473 | ||
2474 | BitStream[bit2idx++] = bit ^ invert; | |
2475 | } | |
2476 | } | |
2477 | ||
2478 | /* standard 1/0 bitstream */ | |
2479 | else | |
2480 | { | |
2481 | ||
2482 | /* Then detect duration between 2 successive transitions */ | |
2483 | for (bitidx = 1; i < GraphTraceLen; i++) | |
2484 | { | |
2485 | if (GraphBuffer[i-1] != GraphBuffer[i]) | |
2486 | { | |
b3b70669 | 2487 | lc = i-lastval; |
2488 | lastval = i; | |
2489 | ||
2490 | // Error check: if bitidx becomes too large, we do not | |
2491 | // have a Manchester encoded bitstream or the clock is really | |
2492 | // wrong! | |
2493 | if (bitidx > (GraphTraceLen*2/clock+8) ) { | |
2494 | PrintAndLog("Error: the clock you gave is probably wrong, aborting."); | |
2495 | return 0; | |
2496 | } | |
2497 | // Then switch depending on lc length: | |
2498 | // Tolerance is 1/4 of clock rate (arbitrary) | |
2499 | if (abs(lc-clock/2) < tolerance) { | |
2500 | // Short pulse : either "1" or "0" | |
2501 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2502 | } else if (abs(lc-clock) < tolerance) { | |
2503 | // Long pulse: either "11" or "00" | |
2504 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2505 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2506 | } else { | |
7fe9b0b7 | 2507 | // Error |
2508 | warnings++; | |
b3b70669 | 2509 | PrintAndLog("Warning: Manchester decode error for pulse width detection."); |
2510 | PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)"); | |
7fe9b0b7 | 2511 | |
2512 | if (warnings > 10) | |
2513 | { | |
2514 | PrintAndLog("Error: too many detection errors, aborting."); | |
2515 | return 0; | |
2516 | } | |
2517 | } | |
2518 | } | |
2519 | } | |
2520 | ||
2521 | // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream | |
2522 | // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful | |
2523 | // to stop output at the final bitidx2 value, not bitidx | |
2524 | for (i = 0; i < bitidx; i += 2) { | |
2525 | if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) { | |
2526 | BitStream[bit2idx++] = 1 ^ invert; | |
b3b70669 | 2527 | } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) { |
2528 | BitStream[bit2idx++] = 0 ^ invert; | |
2529 | } else { | |
2530 | // We cannot end up in this state, this means we are unsynchronized, | |
2531 | // move up 1 bit: | |
2532 | i++; | |
7fe9b0b7 | 2533 | warnings++; |
b3b70669 | 2534 | PrintAndLog("Unsynchronized, resync..."); |
2535 | PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)"); | |
7fe9b0b7 | 2536 | |
2537 | if (warnings > 10) | |
2538 | { | |
2539 | PrintAndLog("Error: too many decode errors, aborting."); | |
2540 | return 0; | |
2541 | } | |
2542 | } | |
2543 | } | |
2544 | } | |
2545 | ||
2546 | PrintAndLog("Manchester decoded bitstream"); | |
2547 | // Now output the bitstream to the scrollback by line of 16 bits | |
2548 | for (i = 0; i < (bit2idx-16); i+=16) { | |
2549 | PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i", | |
2550 | BitStream[i], | |
2551 | BitStream[i+1], | |
2552 | BitStream[i+2], | |
2553 | BitStream[i+3], | |
2554 | BitStream[i+4], | |
2555 | BitStream[i+5], | |
2556 | BitStream[i+6], | |
2557 | BitStream[i+7], | |
2558 | BitStream[i+8], | |
2559 | BitStream[i+9], | |
2560 | BitStream[i+10], | |
2561 | BitStream[i+11], | |
2562 | BitStream[i+12], | |
2563 | BitStream[i+13], | |
2564 | BitStream[i+14], | |
2565 | BitStream[i+15]); | |
2566 | } | |
2567 | return 0; | |
2568 | } | |
2569 | ||
2570 | /* Modulate our data into manchester */ | |
2571 | int CmdManchesterMod(const char *Cmd) | |
2572 | { | |
2573 | int i, j; | |
2574 | int clock; | |
2575 | int bit, lastbit, wave; | |
2576 | ||
2577 | /* Get our clock */ | |
f3bf15e4 | 2578 | clock = GetAskClock(Cmd, 0, 1); |
7fe9b0b7 | 2579 | |
2580 | wave = 0; | |
2581 | lastbit = 1; | |
2582 | for (i = 0; i < (int)(GraphTraceLen / clock); i++) | |
2583 | { | |
2584 | bit = GraphBuffer[i * clock] ^ 1; | |
2585 | ||
2586 | for (j = 0; j < (int)(clock/2); j++) | |
2587 | GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave; | |
2588 | for (j = (int)(clock/2); j < clock; j++) | |
2589 | GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave ^ 1; | |
2590 | ||
2591 | /* Keep track of how we start our wave and if we changed or not this time */ | |
2592 | wave ^= bit ^ lastbit; | |
2593 | lastbit = bit; | |
2594 | } | |
2595 | ||
2596 | RepaintGraphWindow(); | |
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | int CmdNorm(const char *Cmd) | |
2601 | { | |
2602 | int i; | |
2603 | int max = INT_MIN, min = INT_MAX; | |
2604 | ||
2605 | for (i = 10; i < GraphTraceLen; ++i) { | |
2606 | if (GraphBuffer[i] > max) | |
2607 | max = GraphBuffer[i]; | |
2608 | if (GraphBuffer[i] < min) | |
2609 | min = GraphBuffer[i]; | |
2610 | } | |
2611 | ||
2612 | if (max != min) { | |
2613 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 2614 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
7fe9b0b7 | 2615 | (max - min); |
ba1a299c | 2616 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
7fe9b0b7 | 2617 | } |
2618 | } | |
2619 | RepaintGraphWindow(); | |
2620 | return 0; | |
2621 | } | |
2622 | ||
2623 | int CmdPlot(const char *Cmd) | |
2624 | { | |
2625 | ShowGraphWindow(); | |
2626 | return 0; | |
2627 | } | |
2628 | ||
2629 | int CmdSave(const char *Cmd) | |
2630 | { | |
ec75f5c1 | 2631 | char filename[FILE_PATH_SIZE] = {0x00}; |
2632 | int len = 0; | |
b915fda3 | 2633 | |
ec75f5c1 | 2634 | len = strlen(Cmd); |
2635 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2636 | memcpy(filename, Cmd, len); | |
b915fda3 | 2637 | |
2638 | ||
2639 | FILE *f = fopen(filename, "w"); | |
7fe9b0b7 | 2640 | if(!f) { |
b915fda3 | 2641 | PrintAndLog("couldn't open '%s'", filename); |
7fe9b0b7 | 2642 | return 0; |
2643 | } | |
2644 | int i; | |
2645 | for (i = 0; i < GraphTraceLen; i++) { | |
2646 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2647 | } | |
2648 | fclose(f); | |
2649 | PrintAndLog("saved to '%s'", Cmd); | |
2650 | return 0; | |
2651 | } | |
2652 | ||
2653 | int CmdScale(const char *Cmd) | |
2654 | { | |
2655 | CursorScaleFactor = atoi(Cmd); | |
2656 | if (CursorScaleFactor == 0) { | |
2657 | PrintAndLog("bad, can't have zero scale"); | |
2658 | CursorScaleFactor = 1; | |
2659 | } | |
2660 | RepaintGraphWindow(); | |
2661 | return 0; | |
2662 | } | |
2663 | ||
2664 | int CmdThreshold(const char *Cmd) | |
2665 | { | |
2666 | int threshold = atoi(Cmd); | |
2667 | ||
2668 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2669 | if (GraphBuffer[i] >= threshold) | |
2670 | GraphBuffer[i] = 1; | |
2671 | else | |
7bb9d33e | 2672 | GraphBuffer[i] = -1; |
7fe9b0b7 | 2673 | } |
2674 | RepaintGraphWindow(); | |
2675 | return 0; | |
2676 | } | |
2677 | ||
d51b2eda MHS |
2678 | int CmdDirectionalThreshold(const char *Cmd) |
2679 | { | |
b4fb11ba | 2680 | int8_t upThres = param_get8(Cmd, 0); |
2681 | int8_t downThres = param_get8(Cmd, 1); | |
ba1a299c | 2682 | |
d51b2eda | 2683 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); |
952a8bb5 | 2684 | |
d51b2eda MHS |
2685 | int lastValue = GraphBuffer[0]; |
2686 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
952a8bb5 | 2687 | |
d51b2eda MHS |
2688 | for (int i = 1; i < GraphTraceLen; ++i) { |
2689 | // Apply first threshold to samples heading up | |
2690 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2691 | { | |
2692 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2693 | GraphBuffer[i] = 1; | |
2694 | } | |
2695 | // Apply second threshold to samples heading down | |
2696 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2697 | { | |
2698 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2699 | GraphBuffer[i] = -1; | |
2700 | } | |
2701 | else | |
2702 | { | |
2703 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2704 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2705 | ||
2706 | } | |
2707 | } | |
2708 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2709 | RepaintGraphWindow(); | |
2710 | return 0; | |
2711 | } | |
2712 | ||
7fe9b0b7 | 2713 | int CmdZerocrossings(const char *Cmd) |
2714 | { | |
2715 | // Zero-crossings aren't meaningful unless the signal is zero-mean. | |
2716 | CmdHpf(""); | |
2717 | ||
2718 | int sign = 1; | |
2719 | int zc = 0; | |
2720 | int lastZc = 0; | |
2721 | ||
2722 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2723 | if (GraphBuffer[i] * sign >= 0) { | |
2724 | // No change in sign, reproduce the previous sample count. | |
2725 | zc++; | |
2726 | GraphBuffer[i] = lastZc; | |
2727 | } else { | |
2728 | // Change in sign, reset the sample count. | |
2729 | sign = -sign; | |
2730 | GraphBuffer[i] = lastZc; | |
2731 | if (sign > 0) { | |
2732 | lastZc = zc; | |
2733 | zc = 0; | |
2734 | } | |
2735 | } | |
2736 | } | |
2737 | ||
2738 | RepaintGraphWindow(); | |
2739 | return 0; | |
2740 | } | |
2741 | ||
ba1a299c | 2742 | static command_t CommandTable[] = |
7fe9b0b7 | 2743 | { |
2744 | {"help", CmdHelp, 1, "This help"}, | |
2745 | {"amp", CmdAmp, 1, "Amplify peaks"}, | |
19ff0210 | 2746 | //{"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"}, |
cc2ea5ed | 2747 | {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"}, |
2748 | {"askem410xdemod",CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"}, | |
8d960002 | 2749 | {"askgproxiidemod",CmdG_Prox_II_Demod,1, "Demodulate a G Prox II tag from GraphBuffer"}, |
19ff0210 | 2750 | //{"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"}, |
2751 | //{"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"}, | |
9f7bbd24 | 2752 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, |
cc2ea5ed | 2753 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
7fe9b0b7 | 2754 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
19ff0210 | 2755 | //{"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"}, |
7fe9b0b7 | 2756 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
2757 | {"dec", CmdDec, 1, "Decimate samples"}, | |
cc2ea5ed | 2758 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, |
19ff0210 | 2759 | //{"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, |
cc2ea5ed | 2760 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, |
f3bf15e4 | 2761 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, |
cc2ea5ed | 2762 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, |
2763 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, | |
2764 | {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, | |
2765 | {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"}, | |
19ff0210 | 2766 | //{"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, |
78f5b1a7 | 2767 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, |
7fe9b0b7 | 2768 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, |
b4fb11ba | 2769 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, |
7fe9b0b7 | 2770 | {"hide", CmdHide, 1, "Hide graph window"}, |
2771 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
7fe9b0b7 | 2772 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, |
2773 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
9ec1416a | 2774 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, |
19ff0210 | 2775 | //{"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"}, |
cc2ea5ed | 2776 | {"manrawdecode", Cmdmandecoderaw, 1, "Manchester decode binary stream in DemodBuffer"}, |
7fe9b0b7 | 2777 | {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, |
b4fb11ba | 2778 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
f3bf15e4 | 2779 | //{"nrzdetectclock",CmdDetectNRZClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, |
19ff0210 | 2780 | //{"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"}, |
7ddb9900 | 2781 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, |
f3bf15e4 | 2782 | //{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, |
13024283 | 2783 | {"printdemodbuffer",CmdPrintDemodBuff,1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"}, |
cc2ea5ed | 2784 | {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, |
19ff0210 | 2785 | //{"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"}, |
2786 | //{"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"}, | |
cc2ea5ed | 2787 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, |
2788 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
7fe9b0b7 | 2789 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, |
2790 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
ec75f5c1 | 2791 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, |
2792 | {"shiftgraphzero",CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
19ff0210 | 2793 | //{"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"}, |
b4fb11ba | 2794 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
2795 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
19ff0210 | 2796 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, |
b4fb11ba | 2797 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, |
7fe9b0b7 | 2798 | {NULL, NULL, 0, NULL} |
2799 | }; | |
2800 | ||
2801 | int CmdData(const char *Cmd) | |
2802 | { | |
2803 | CmdsParse(CommandTable, Cmd); | |
2804 | return 0; | |
2805 | } | |
2806 | ||
2807 | int CmdHelp(const char *Cmd) | |
2808 | { | |
2809 | CmdsHelp(CommandTable); | |
2810 | return 0; | |
2811 | } |