]>
Commit | Line | Data |
---|---|---|
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" |
4118b74d | 24 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
ec75f5c1 | 25 | uint8_t g_debugMode; |
4118b74d | 26 | int DemodBufferLen; |
7fe9b0b7 | 27 | static int CmdHelp(const char *Cmd); |
28 | ||
4118b74d | 29 | //set the demod buffer with given array of binary (one bit per byte) |
30 | //by marshmellow | |
ec75f5c1 | 31 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 32 | { |
ec75f5c1 | 33 | size_t i = 0; |
34 | for (; i < size; i++){ | |
35 | DemodBuffer[i]=buff[startIdx++]; | |
ba1a299c | 36 | } |
37 | DemodBufferLen=size; | |
38 | return; | |
4118b74d | 39 | } |
40 | ||
ec75f5c1 | 41 | int CmdSetDebugMode(const char *Cmd) |
42 | { | |
43 | int demod=0; | |
44 | sscanf(Cmd, "%i", &demod); | |
45 | g_debugMode=(uint8_t)demod; | |
46 | return 1; | |
47 | } | |
48 | ||
4118b74d | 49 | //by marshmellow |
50 | void printDemodBuff() | |
51 | { | |
ba1a299c | 52 | uint32_t i = 0; |
53 | int bitLen = DemodBufferLen; | |
54 | if (bitLen<16) { | |
55 | PrintAndLog("no bits found in demod buffer"); | |
56 | return; | |
57 | } | |
58 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
33c7e2f3 | 59 | |
0c5998c0 I |
60 | // ensure equally divided by 16 |
61 | bitLen &= 0xfff0; | |
33c7e2f3 | 62 | |
ba1a299c | 63 | for (i = 0; i <= (bitLen-16); i+=16) { |
64 | PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", | |
65 | DemodBuffer[i], | |
66 | DemodBuffer[i+1], | |
67 | DemodBuffer[i+2], | |
68 | DemodBuffer[i+3], | |
69 | DemodBuffer[i+4], | |
70 | DemodBuffer[i+5], | |
71 | DemodBuffer[i+6], | |
72 | DemodBuffer[i+7], | |
73 | DemodBuffer[i+8], | |
74 | DemodBuffer[i+9], | |
75 | DemodBuffer[i+10], | |
76 | DemodBuffer[i+11], | |
77 | DemodBuffer[i+12], | |
78 | DemodBuffer[i+13], | |
79 | DemodBuffer[i+14], | |
80 | DemodBuffer[i+15]); | |
81 | } | |
82 | return; | |
4118b74d | 83 | } |
84 | ||
85 | ||
7fe9b0b7 | 86 | int CmdAmp(const char *Cmd) |
87 | { | |
88 | int i, rising, falling; | |
89 | int max = INT_MIN, min = INT_MAX; | |
90 | ||
91 | for (i = 10; i < GraphTraceLen; ++i) { | |
92 | if (GraphBuffer[i] > max) | |
93 | max = GraphBuffer[i]; | |
94 | if (GraphBuffer[i] < min) | |
95 | min = GraphBuffer[i]; | |
96 | } | |
97 | ||
98 | if (max != min) { | |
99 | rising = falling= 0; | |
100 | for (i = 0; i < GraphTraceLen; ++i) { | |
101 | if (GraphBuffer[i + 1] < GraphBuffer[i]) { | |
102 | if (rising) { | |
103 | GraphBuffer[i] = max; | |
104 | rising = 0; | |
105 | } | |
106 | falling = 1; | |
107 | } | |
108 | if (GraphBuffer[i + 1] > GraphBuffer[i]) { | |
109 | if (falling) { | |
110 | GraphBuffer[i] = min; | |
111 | falling = 0; | |
112 | } | |
113 | rising= 1; | |
114 | } | |
115 | } | |
116 | } | |
117 | RepaintGraphWindow(); | |
118 | return 0; | |
119 | } | |
120 | ||
121 | /* | |
122 | * Generic command to demodulate ASK. | |
123 | * | |
124 | * Argument is convention: positive or negative (High mod means zero | |
125 | * or high mod means one) | |
126 | * | |
127 | * Updates the Graph trace with 0/1 values | |
128 | * | |
129 | * Arguments: | |
130 | * c : 0 or 1 | |
131 | */ | |
2fc2150e | 132 | //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock |
7fe9b0b7 | 133 | int Cmdaskdemod(const char *Cmd) |
134 | { | |
135 | int i; | |
136 | int c, high = 0, low = 0; | |
ba1a299c | 137 | |
7fe9b0b7 | 138 | // TODO: complain if we do not give 2 arguments here ! |
139 | // (AL - this doesn't make sense! we're only using one argument!!!) | |
140 | sscanf(Cmd, "%i", &c); | |
ba1a299c | 141 | |
7fe9b0b7 | 142 | /* Detect high and lows and clock */ |
ba1a299c | 143 | // (AL - clock???) |
7fe9b0b7 | 144 | for (i = 0; i < GraphTraceLen; ++i) |
145 | { | |
146 | if (GraphBuffer[i] > high) | |
147 | high = GraphBuffer[i]; | |
148 | else if (GraphBuffer[i] < low) | |
149 | low = GraphBuffer[i]; | |
150 | } | |
eb191de6 | 151 | high=abs(high*.75); |
152 | low=abs(low*.75); | |
7fe9b0b7 | 153 | if (c != 0 && c != 1) { |
154 | PrintAndLog("Invalid argument: %s", Cmd); | |
155 | return 0; | |
156 | } | |
b3b70669 | 157 | //prime loop |
7fe9b0b7 | 158 | if (GraphBuffer[0] > 0) { |
159 | GraphBuffer[0] = 1-c; | |
160 | } else { | |
161 | GraphBuffer[0] = c; | |
162 | } | |
163 | for (i = 1; i < GraphTraceLen; ++i) { | |
164 | /* Transitions are detected at each peak | |
165 | * Transitions are either: | |
166 | * - we're low: transition if we hit a high | |
167 | * - we're high: transition if we hit a low | |
168 | * (we need to do it this way because some tags keep high or | |
169 | * low for long periods, others just reach the peak and go | |
170 | * down) | |
171 | */ | |
ae2f73c1 | 172 | //[marhsmellow] change == to >= for high and <= for low for fuzz |
173 | if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) { | |
7fe9b0b7 | 174 | GraphBuffer[i] = 1 - c; |
ae2f73c1 | 175 | } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){ |
7fe9b0b7 | 176 | GraphBuffer[i] = c; |
177 | } else { | |
178 | /* No transition */ | |
179 | GraphBuffer[i] = GraphBuffer[i - 1]; | |
180 | } | |
181 | } | |
182 | RepaintGraphWindow(); | |
183 | return 0; | |
184 | } | |
185 | ||
d5a72d2f | 186 | //by marshmellow |
187 | void printBitStream(uint8_t BitStream[], uint32_t bitLen) | |
188 | { | |
2fc2150e | 189 | uint32_t i = 0; |
190 | if (bitLen<16) { | |
191 | PrintAndLog("Too few bits found: %d",bitLen); | |
192 | return; | |
193 | } | |
194 | if (bitLen>512) bitLen=512; | |
0c5998c0 I |
195 | |
196 | // ensure equally divided by 16 | |
197 | bitLen &= 0xfff0; | |
198 | ||
199 | ||
2df8c079 | 200 | for (i = 0; i <= (bitLen-16); i+=16) { |
2fc2150e | 201 | PrintAndLog("%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i%i", |
202 | BitStream[i], | |
203 | BitStream[i+1], | |
204 | BitStream[i+2], | |
205 | BitStream[i+3], | |
206 | BitStream[i+4], | |
207 | BitStream[i+5], | |
208 | BitStream[i+6], | |
209 | BitStream[i+7], | |
210 | BitStream[i+8], | |
211 | BitStream[i+9], | |
212 | BitStream[i+10], | |
213 | BitStream[i+11], | |
214 | BitStream[i+12], | |
215 | BitStream[i+13], | |
216 | BitStream[i+14], | |
217 | BitStream[i+15]); | |
218 | } | |
ba1a299c | 219 | return; |
2fc2150e | 220 | } |
d5a72d2f | 221 | //by marshmellow |
ba1a299c | 222 | //print EM410x ID in multiple formats |
eb191de6 | 223 | void printEM410x(uint64_t id) |
2fc2150e | 224 | { |
eb191de6 | 225 | if (id !=0){ |
0e74c023 | 226 | uint64_t iii=1; |
ec75f5c1 | 227 | uint64_t id2lo=0; |
eb191de6 | 228 | uint32_t ii=0; |
229 | uint32_t i=0; | |
0e74c023 | 230 | for (ii=5; ii>0;ii--){ |
2fc2150e | 231 | for (i=0;i<8;i++){ |
ba1a299c | 232 | id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); |
2fc2150e | 233 | } |
234 | } | |
0e74c023 | 235 | //output em id |
eb191de6 | 236 | PrintAndLog("EM TAG ID : %010llx", id); |
ec75f5c1 | 237 | PrintAndLog("Unique TAG ID: %010llx", id2lo); |
eb191de6 | 238 | PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); |
239 | PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF); | |
240 | PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); | |
241 | PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); | |
242 | PrintAndLog("DEZ 14/IK2 : %014lld",id); | |
0e74c023 | 243 | PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); |
eb191de6 | 244 | PrintAndLog("Other : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); |
ba1a299c | 245 | } |
eb191de6 | 246 | return; |
247 | } | |
248 | ||
d5a72d2f | 249 | //by marshmellow |
ba1a299c | 250 | //take binary from demod buffer and see if we can find an EM410x ID |
eb191de6 | 251 | int CmdEm410xDecode(const char *Cmd) |
252 | { | |
253 | uint64_t id=0; | |
ec75f5c1 | 254 | size_t size = DemodBufferLen, idx=0; |
255 | id = Em410xDecode(DemodBuffer, &size, &idx); | |
256 | if (id>0){ | |
257 | setDemodBuf(DemodBuffer, size, idx); | |
258 | if (g_debugMode){ | |
259 | PrintAndLog("DEBUG: Printing demod buffer:"); | |
260 | printDemodBuff(); | |
261 | } | |
262 | printEM410x(id); | |
263 | return 1; | |
264 | } | |
2fc2150e | 265 | return 0; |
266 | } | |
267 | ||
f822a063 | 268 | |
e888ed8e | 269 | //by marshmellow |
e770c648 | 270 | //takes 3 arguments - clock, invert and maxErr as integers |
271 | //attempts to demodulate ask while decoding manchester | |
272 | //prints binary found and saves in graphbuffer for further commands | |
273 | int CmdAskEM410xDemod(const char *Cmd) | |
274 | { | |
275 | int invert=0; | |
276 | int clk=0; | |
277 | int maxErr=100; | |
278 | char cmdp = param_getchar(Cmd, 0); | |
279 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
280 | PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); | |
281 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
282 | PrintAndLog(" <invert>, 1 for invert output"); | |
283 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
284 | PrintAndLog(""); | |
285 | PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); | |
286 | PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); | |
287 | PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); | |
288 | PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); | |
289 | 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"); | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | ||
295 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
296 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
297 | if (invert != 0 && invert != 1) { | |
298 | PrintAndLog("Invalid argument: %s", Cmd); | |
299 | return 0; | |
300 | } | |
301 | size_t BitLen = getFromGraphBuf(BitStream); | |
302 | ||
303 | if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); | |
304 | if (BitLen==0) return 0; | |
305 | int errCnt=0; | |
306 | errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
307 | if (errCnt<0||BitLen<16){ //if fatal error (or -1) | |
308 | if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); | |
309 | return 0; | |
310 | } | |
311 | PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); | |
312 | ||
313 | //output | |
314 | if (errCnt>0){ | |
315 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); | |
316 | } | |
317 | //PrintAndLog("ASK/Manchester decoded bitstream:"); | |
318 | // Now output the bitstream to the scrollback by line of 16 bits | |
319 | setDemodBuf(BitStream,BitLen,0); | |
320 | //printDemodBuff(); | |
321 | uint64_t lo =0; | |
322 | size_t idx=0; | |
323 | lo = Em410xDecode(BitStream, &BitLen, &idx); | |
324 | if (lo>0){ | |
325 | //set GraphBuffer for clone or sim command | |
326 | setDemodBuf(BitStream, BitLen, idx); | |
327 | if (g_debugMode){ | |
328 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
329 | printDemodBuff(); | |
330 | } | |
331 | PrintAndLog("EM410x pattern found: "); | |
332 | printEM410x(lo); | |
333 | return 1; | |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
338 | //by marshmellow | |
339 | //takes 3 arguments - clock, invert, maxErr as integers | |
ba1a299c | 340 | //attempts to demodulate ask while decoding manchester |
e888ed8e | 341 | //prints binary found and saves in graphbuffer for further commands |
9e6dd4eb | 342 | int Cmdaskmandemod(const char *Cmd) |
e888ed8e | 343 | { |
ec75f5c1 | 344 | int invert=0; |
ba1a299c | 345 | int clk=0; |
e770c648 | 346 | int maxErr=100; |
347 | char cmdp = param_getchar(Cmd, 0); | |
348 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
349 | PrintAndLog("Usage: data askmandemod [clock] <0|1> [maxError]"); | |
350 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
351 | PrintAndLog(" <invert>, 1 for invert output"); | |
352 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
353 | PrintAndLog(""); | |
354 | PrintAndLog(" sample: data askmandemod = demod an ask/manchester tag from GraphBuffer"); | |
355 | PrintAndLog(" : data askmandemod 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
356 | PrintAndLog(" : data askmandemod 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
357 | PrintAndLog(" : data askmandemod 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
358 | PrintAndLog(" : data askmandemod 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
359 | ||
360 | return 0; | |
361 | } | |
eb191de6 | 362 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
e770c648 | 363 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); |
e888ed8e | 364 | if (invert != 0 && invert != 1) { |
365 | PrintAndLog("Invalid argument: %s", Cmd); | |
366 | return 0; | |
367 | } | |
ba1a299c | 368 | size_t BitLen = getFromGraphBuf(BitStream); |
ec75f5c1 | 369 | if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
e770c648 | 370 | if (BitLen==0) return 0; |
eb191de6 | 371 | int errCnt=0; |
e770c648 | 372 | errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); |
ba1a299c | 373 | if (errCnt<0||BitLen<16){ //if fatal error (or -1) |
ec75f5c1 | 374 | if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); |
e888ed8e | 375 | return 0; |
ba1a299c | 376 | } |
f822a063 | 377 | PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen); |
ba1a299c | 378 | |
d5a72d2f | 379 | //output |
eb191de6 | 380 | if (errCnt>0){ |
381 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); | |
e888ed8e | 382 | } |
eb191de6 | 383 | PrintAndLog("ASK/Manchester decoded bitstream:"); |
384 | // Now output the bitstream to the scrollback by line of 16 bits | |
ec75f5c1 | 385 | setDemodBuf(BitStream,BitLen,0); |
ba1a299c | 386 | printDemodBuff(); |
eb191de6 | 387 | uint64_t lo =0; |
ec75f5c1 | 388 | size_t idx=0; |
389 | lo = Em410xDecode(BitStream, &BitLen, &idx); | |
d5a72d2f | 390 | if (lo>0){ |
391 | //set GraphBuffer for clone or sim command | |
ec75f5c1 | 392 | setDemodBuf(BitStream, BitLen, idx); |
393 | if (g_debugMode){ | |
394 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
395 | printDemodBuff(); | |
396 | } | |
d5a72d2f | 397 | PrintAndLog("EM410x pattern found: "); |
398 | printEM410x(lo); | |
ac914e56 | 399 | return 1; |
d5a72d2f | 400 | } |
e770c648 | 401 | return 1; |
eb191de6 | 402 | } |
403 | ||
404 | //by marshmellow | |
d5a72d2f | 405 | //manchester decode |
eb191de6 | 406 | //stricktly take 10 and 01 and convert to 0 and 1 |
407 | int Cmdmandecoderaw(const char *Cmd) | |
408 | { | |
409 | int i =0; | |
410 | int errCnt=0; | |
ba1a299c | 411 | size_t size=0; |
e770c648 | 412 | char cmdp = param_getchar(Cmd, 0); |
413 | if (strlen(Cmd) > 1 || cmdp == 'h' || cmdp == 'H') { | |
414 | PrintAndLog("Usage: data manrawdecode"); | |
415 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); | |
416 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
417 | PrintAndLog(""); | |
418 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
419 | return 0; | |
420 | } | |
421 | if (DemodBufferLen==0) return 0; | |
eb191de6 | 422 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
423 | int high=0,low=0; | |
ba1a299c | 424 | for (;i<DemodBufferLen;++i){ |
425 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
426 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
427 | BitStream[i]=DemodBuffer[i]; | |
eb191de6 | 428 | } |
429 | if (high>1 || low <0 ){ | |
430 | PrintAndLog("Error: please raw demod the wave first then mancheseter raw decode"); | |
431 | return 0; | |
432 | } | |
ba1a299c | 433 | size=i; |
434 | errCnt=manrawdecode(BitStream, &size); | |
2df8c079 | 435 | if (errCnt>=20){ |
436 | PrintAndLog("Too many errors: %d",errCnt); | |
437 | return 0; | |
438 | } | |
eb191de6 | 439 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); |
ba1a299c | 440 | printBitStream(BitStream, size); |
eb191de6 | 441 | if (errCnt==0){ |
ba1a299c | 442 | uint64_t id = 0; |
ec75f5c1 | 443 | size_t idx=0; |
444 | id = Em410xDecode(BitStream, &size, &idx); | |
445 | if (id>0){ | |
446 | //need to adjust to set bitstream back to manchester encoded data | |
447 | //setDemodBuf(BitStream, size, idx); | |
448 | ||
449 | printEM410x(id); | |
450 | } | |
eb191de6 | 451 | } |
d5a72d2f | 452 | return 1; |
453 | } | |
454 | ||
455 | //by marshmellow | |
456 | //biphase decode | |
457 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 458 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
459 | // and "invert" default = 0 if 1 it will invert output | |
ba1a299c | 460 | // since it is not like manchester and doesn't have an incorrect bit pattern we |
d5a72d2f | 461 | // cannot determine if our decode is correct or if it should be shifted by one bit |
462 | // the argument offset allows us to manually shift if the output is incorrect | |
463 | // (better would be to demod and decode at the same time so we can distinguish large | |
464 | // width waves vs small width waves to help the decode positioning) or askbiphdemod | |
465 | int CmdBiphaseDecodeRaw(const char *Cmd) | |
466 | { | |
467 | int i = 0; | |
468 | int errCnt=0; | |
ba1a299c | 469 | size_t size=0; |
d5a72d2f | 470 | int offset=0; |
1e090a61 | 471 | int invert=0; |
d5a72d2f | 472 | int high=0, low=0; |
e770c648 | 473 | char cmdp = param_getchar(Cmd, 0); |
474 | if (strlen(Cmd) > 2 || cmdp == 'h' || cmdp == 'H') { | |
475 | PrintAndLog("Usage: data biphaserawdecode [offset] <invert>"); | |
476 | PrintAndLog(" Converts 10 or 01 to 0 and 11 or 00 to 1"); | |
477 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
478 | PrintAndLog(""); | |
479 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
480 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
481 | PrintAndLog(""); | |
482 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
483 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
484 | return 0; | |
485 | } | |
1e090a61 | 486 | sscanf(Cmd, "%i %i", &offset, &invert); |
e770c648 | 487 | if (DemodBufferLen==0) return 0; |
d5a72d2f | 488 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
489 | //get graphbuffer & high and low | |
ba1a299c | 490 | for (;i<DemodBufferLen;++i){ |
491 | if(DemodBuffer[i]>high)high=DemodBuffer[i]; | |
492 | else if(DemodBuffer[i]<low)low=DemodBuffer[i]; | |
493 | BitStream[i]=DemodBuffer[i]; | |
d5a72d2f | 494 | } |
495 | if (high>1 || low <0){ | |
496 | PrintAndLog("Error: please raw demod the wave first then decode"); | |
497 | return 0; | |
498 | } | |
ba1a299c | 499 | size=i; |
1e090a61 | 500 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
d5a72d2f | 501 | if (errCnt>=20){ |
502 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); | |
503 | return 0; | |
504 | } | |
505 | PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); | |
ba1a299c | 506 | printBitStream(BitStream, size); |
d5a72d2f | 507 | PrintAndLog("\nif bitstream does not look right try offset=1"); |
508 | return 1; | |
eb191de6 | 509 | } |
510 | ||
511 | //by marshmellow | |
e770c648 | 512 | //takes 3 arguments - clock, invert, maxErr as integers |
eb191de6 | 513 | //attempts to demodulate ask only |
514 | //prints binary found and saves in graphbuffer for further commands | |
515 | int Cmdaskrawdemod(const char *Cmd) | |
516 | { | |
ba1a299c | 517 | int invert=0; |
518 | int clk=0; | |
e770c648 | 519 | int maxErr=100; |
520 | char cmdp = param_getchar(Cmd, 0); | |
521 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
522 | PrintAndLog("Usage: data askrawdemod [clock] <0|1> [maxError]"); | |
523 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
524 | PrintAndLog(" <invert>, 1 for invert output"); | |
525 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
526 | PrintAndLog(""); | |
527 | PrintAndLog(" sample: data askrawdemod = demod an ask tag from GraphBuffer"); | |
528 | PrintAndLog(" : data askrawdemod 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
529 | PrintAndLog(" : data askrawdemod 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
530 | PrintAndLog(" : data askrawdemod 1 = demod an ask tag from GraphBuffer while inverting data"); | |
531 | PrintAndLog(" : data askrawdemod 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
532 | return 0; | |
533 | } | |
eb191de6 | 534 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
e770c648 | 535 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); |
eb191de6 | 536 | if (invert != 0 && invert != 1) { |
537 | PrintAndLog("Invalid argument: %s", Cmd); | |
538 | return 0; | |
539 | } | |
ba1a299c | 540 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 541 | if (BitLen==0) return 0; |
eb191de6 | 542 | int errCnt=0; |
e770c648 | 543 | errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr); |
ba1a299c | 544 | if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
545 | PrintAndLog("no data found"); | |
ec75f5c1 | 546 | if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert); |
eb191de6 | 547 | return 0; |
ba1a299c | 548 | } |
e770c648 | 549 | PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen); |
ec75f5c1 | 550 | |
551 | //move BitStream back to DemodBuffer | |
552 | setDemodBuf(BitStream,BitLen,0); | |
ba1a299c | 553 | |
ec75f5c1 | 554 | //output |
eb191de6 | 555 | if (errCnt>0){ |
e770c648 | 556 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt); |
eb191de6 | 557 | } |
558 | PrintAndLog("ASK demoded bitstream:"); | |
559 | // Now output the bitstream to the scrollback by line of 16 bits | |
560 | printBitStream(BitStream,BitLen); | |
952a8bb5 | 561 | |
f822a063 | 562 | return 1; |
e888ed8e | 563 | } |
564 | ||
7fe9b0b7 | 565 | int CmdAutoCorr(const char *Cmd) |
566 | { | |
567 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; | |
568 | ||
569 | int window = atoi(Cmd); | |
570 | ||
571 | if (window == 0) { | |
572 | PrintAndLog("needs a window"); | |
573 | return 0; | |
574 | } | |
575 | if (window >= GraphTraceLen) { | |
576 | PrintAndLog("window must be smaller than trace (%d samples)", | |
577 | GraphTraceLen); | |
578 | return 0; | |
579 | } | |
580 | ||
581 | PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
582 | ||
583 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
584 | int sum = 0; | |
585 | for (int j = 0; j < window; ++j) { | |
586 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
587 | } | |
588 | CorrelBuffer[i] = sum; | |
589 | } | |
590 | GraphTraceLen = GraphTraceLen - window; | |
591 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
592 | ||
593 | RepaintGraphWindow(); | |
594 | return 0; | |
595 | } | |
596 | ||
597 | int CmdBitsamples(const char *Cmd) | |
598 | { | |
599 | int cnt = 0; | |
90d74dc2 | 600 | uint8_t got[12288]; |
952a8bb5 | 601 | |
90d74dc2 | 602 | GetFromBigBuf(got,sizeof(got),0); |
603 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 604 | |
90d74dc2 | 605 | for (int j = 0; j < sizeof(got); j++) { |
7fe9b0b7 | 606 | for (int k = 0; k < 8; k++) { |
90d74dc2 | 607 | if(got[j] & (1 << (7 - k))) { |
7fe9b0b7 | 608 | GraphBuffer[cnt++] = 1; |
609 | } else { | |
610 | GraphBuffer[cnt++] = 0; | |
611 | } | |
612 | } | |
7fe9b0b7 | 613 | } |
614 | GraphTraceLen = cnt; | |
615 | RepaintGraphWindow(); | |
616 | return 0; | |
617 | } | |
618 | ||
619 | /* | |
620 | * Convert to a bitstream | |
621 | */ | |
622 | int CmdBitstream(const char *Cmd) | |
623 | { | |
624 | int i, j; | |
625 | int bit; | |
626 | int gtl; | |
627 | int clock; | |
628 | int low = 0; | |
629 | int high = 0; | |
630 | int hithigh, hitlow, first; | |
631 | ||
632 | /* Detect high and lows and clock */ | |
633 | for (i = 0; i < GraphTraceLen; ++i) | |
634 | { | |
635 | if (GraphBuffer[i] > high) | |
636 | high = GraphBuffer[i]; | |
637 | else if (GraphBuffer[i] < low) | |
638 | low = GraphBuffer[i]; | |
639 | } | |
640 | ||
641 | /* Get our clock */ | |
642 | clock = GetClock(Cmd, high, 1); | |
643 | gtl = ClearGraph(0); | |
644 | ||
645 | bit = 0; | |
646 | for (i = 0; i < (int)(gtl / clock); ++i) | |
647 | { | |
648 | hithigh = 0; | |
649 | hitlow = 0; | |
650 | first = 1; | |
651 | /* Find out if we hit both high and low peaks */ | |
652 | for (j = 0; j < clock; ++j) | |
653 | { | |
654 | if (GraphBuffer[(i * clock) + j] == high) | |
655 | hithigh = 1; | |
656 | else if (GraphBuffer[(i * clock) + j] == low) | |
657 | hitlow = 1; | |
658 | /* it doesn't count if it's the first part of our read | |
659 | because it's really just trailing from the last sequence */ | |
660 | if (first && (hithigh || hitlow)) | |
661 | hithigh = hitlow = 0; | |
662 | else | |
663 | first = 0; | |
664 | ||
665 | if (hithigh && hitlow) | |
666 | break; | |
667 | } | |
668 | ||
669 | /* If we didn't hit both high and low peaks, we had a bit transition */ | |
670 | if (!hithigh || !hitlow) | |
671 | bit ^= 1; | |
672 | ||
673 | AppendGraph(0, clock, bit); | |
7fe9b0b7 | 674 | } |
ba1a299c | 675 | |
7fe9b0b7 | 676 | RepaintGraphWindow(); |
677 | return 0; | |
678 | } | |
679 | ||
680 | int CmdBuffClear(const char *Cmd) | |
681 | { | |
682 | UsbCommand c = {CMD_BUFF_CLEAR}; | |
683 | SendCommand(&c); | |
684 | ClearGraph(true); | |
685 | return 0; | |
686 | } | |
687 | ||
688 | int CmdDec(const char *Cmd) | |
689 | { | |
690 | for (int i = 0; i < (GraphTraceLen / 2); ++i) | |
691 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
692 | GraphTraceLen /= 2; | |
693 | PrintAndLog("decimated by 2"); | |
694 | RepaintGraphWindow(); | |
695 | return 0; | |
696 | } | |
697 | ||
ec75f5c1 | 698 | //by marshmellow |
699 | //shift graph zero up or down based on input + or - | |
700 | int CmdGraphShiftZero(const char *Cmd) | |
701 | { | |
702 | ||
703 | int shift=0; | |
704 | //set options from parameters entered with the command | |
705 | sscanf(Cmd, "%i", &shift); | |
706 | int shiftedVal=0; | |
707 | for(int i = 0; i<GraphTraceLen; i++){ | |
708 | shiftedVal=GraphBuffer[i]+shift; | |
709 | if (shiftedVal>127) | |
710 | shiftedVal=127; | |
711 | else if (shiftedVal<-127) | |
712 | shiftedVal=-127; | |
713 | GraphBuffer[i]= shiftedVal; | |
714 | } | |
715 | CmdNorm(""); | |
716 | return 0; | |
717 | } | |
718 | ||
7fe9b0b7 | 719 | /* Print our clock rate */ |
ba1a299c | 720 | // uses data from graphbuffer |
7fe9b0b7 | 721 | int CmdDetectClockRate(const char *Cmd) |
722 | { | |
e770c648 | 723 | int ans = GetClock("",0,0); |
724 | return ans; | |
7fe9b0b7 | 725 | } |
66707a3b | 726 | |
2fc2150e | 727 | //by marshmellow |
eb191de6 | 728 | //fsk raw demod and print binary |
f822a063 | 729 | //takes 4 arguments - Clock, invert, rchigh, rclow |
730 | //defaults: clock = 50, invert=0, rchigh=10, rclow=8 (RF/10 RF/8 (fsk2a)) | |
e888ed8e | 731 | int CmdFSKrawdemod(const char *Cmd) |
b3b70669 | 732 | { |
eb191de6 | 733 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
b3b70669 | 734 | //set defaults |
03e6bb4a | 735 | int rfLen = 0; |
f822a063 | 736 | int invert=0; |
03e6bb4a | 737 | int fchigh=0; |
738 | int fclow=0; | |
e770c648 | 739 | char cmdp = param_getchar(Cmd, 0); |
740 | if (strlen(Cmd) > 4 || cmdp == 'h' || cmdp == 'H') { | |
741 | PrintAndLog("Usage: data fskrawdemod [clock] <0|1> [rchigh] [rclow]"); | |
742 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
743 | PrintAndLog(" <invert>, 1 for invert output"); | |
744 | ||
745 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
746 | PrintAndLog(""); | |
747 | PrintAndLog(" sample: data fskrawdemod = demod an fsk tag from GraphBuffer using autodetect"); | |
748 | PrintAndLog(" : data fskrawdemod 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
749 | PrintAndLog(" : data fskrawdemod 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
750 | PrintAndLog(" : data fskrawdemod 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
751 | PrintAndLog(" : data fskrawdemod 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
752 | PrintAndLog(" : data fskrawdemod 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
753 | return 0; | |
754 | } | |
b3b70669 | 755 | //set options from parameters entered with the command |
ba1a299c | 756 | sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); |
757 | ||
b3b70669 | 758 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { |
b3b70669 | 759 | if (rfLen==1){ |
760 | invert=1; //if invert option only is used | |
03e6bb4a | 761 | rfLen = 0; |
762 | } | |
ba1a299c | 763 | } |
03e6bb4a | 764 | |
eb191de6 | 765 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
ba1a299c | 766 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 767 | if (BitLen==0) return 0; |
03e6bb4a | 768 | //get field clock lengths |
769 | uint16_t fcs=0; | |
e770c648 | 770 | uint8_t dummy=0; |
03e6bb4a | 771 | if (fchigh==0 || fclow == 0){ |
e770c648 | 772 | fcs=countFC(BitStream, BitLen, &dummy); |
03e6bb4a | 773 | if (fcs==0){ |
774 | fchigh=10; | |
775 | fclow=8; | |
776 | }else{ | |
777 | fchigh = (fcs >> 8) & 0xFF; | |
778 | fclow = fcs & 0xFF; | |
779 | } | |
780 | } | |
781 | //get bit clock length | |
782 | if (rfLen==0){ | |
783 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
784 | if (rfLen == 0) rfLen = 50; | |
785 | } | |
786 | PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); | |
ba1a299c | 787 | int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); |
d5a72d2f | 788 | if (size>0){ |
789 | PrintAndLog("FSK decoded bitstream:"); | |
ec75f5c1 | 790 | setDemodBuf(BitStream,size,0); |
ba1a299c | 791 | |
d5a72d2f | 792 | // Now output the bitstream to the scrollback by line of 16 bits |
793 | 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 | |
794 | printBitStream(BitStream,size); | |
e770c648 | 795 | return 1; |
d5a72d2f | 796 | } else{ |
797 | PrintAndLog("no FSK data found"); | |
eb191de6 | 798 | } |
b3b70669 | 799 | return 0; |
800 | } | |
801 | ||
eb191de6 | 802 | //by marshmellow (based on existing demod + holiman's refactor) |
803 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
804 | //print full HID Prox ID and some bit format details if found | |
b3b70669 | 805 | int CmdFSKdemodHID(const char *Cmd) |
806 | { | |
807 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
b3b70669 | 808 | uint32_t hi2=0, hi=0, lo=0; |
ba1a299c | 809 | |
eb191de6 | 810 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
ba1a299c | 811 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 812 | if (BitLen==0) return 0; |
b3b70669 | 813 | //get binary from fsk wave |
e770c648 | 814 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); |
ec75f5c1 | 815 | if (idx<0){ |
a1d17964 | 816 | if (g_debugMode){ |
817 | if (idx==-1){ | |
818 | PrintAndLog("DEBUG: Just Noise Detected"); | |
819 | } else if (idx == -2) { | |
820 | PrintAndLog("DEBUG: Error demoding fsk"); | |
821 | } else if (idx == -3) { | |
822 | PrintAndLog("DEBUG: Preamble not found"); | |
823 | } else if (idx == -4) { | |
824 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
825 | } else { | |
826 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
827 | } | |
828 | } | |
ec75f5c1 | 829 | return 0; |
830 | } | |
831 | if (hi2==0 && hi==0 && lo==0) { | |
832 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
eb191de6 | 833 | return 0; |
834 | } | |
835 | if (hi2 != 0){ //extra large HID tags | |
ba1a299c | 836 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", |
eb191de6 | 837 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); |
838 | } | |
839 | else { //standard HID tags <38 bits | |
d5a72d2f | 840 | uint8_t fmtLen = 0; |
eb191de6 | 841 | uint32_t fc = 0; |
842 | uint32_t cardnum = 0; | |
843 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
844 | uint32_t lo2=0; | |
84871873 | 845 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit |
eb191de6 | 846 | uint8_t idx3 = 1; |
847 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
848 | lo2=lo2>>1; | |
849 | idx3++; | |
b3b70669 | 850 | } |
ba1a299c | 851 | fmtLen =idx3+19; |
eb191de6 | 852 | fc =0; |
853 | cardnum=0; | |
d5a72d2f | 854 | if(fmtLen==26){ |
eb191de6 | 855 | cardnum = (lo>>1)&0xFFFF; |
856 | fc = (lo>>17)&0xFF; | |
857 | } | |
d5a72d2f | 858 | if(fmtLen==34){ |
eb191de6 | 859 | cardnum = (lo>>1)&0xFFFF; |
860 | fc= ((hi&1)<<15)|(lo>>17); | |
861 | } | |
d5a72d2f | 862 | if(fmtLen==35){ |
eb191de6 | 863 | cardnum = (lo>>1)&0xFFFFF; |
864 | fc = ((hi&1)<<11)|(lo>>21); | |
b3b70669 | 865 | } |
b3b70669 | 866 | } |
eb191de6 | 867 | else { //if bit 38 is not set then 37 bit format is used |
84871873 | 868 | fmtLen = 37; |
869 | fc = 0; | |
870 | cardnum = 0; | |
871 | if(fmtLen == 37){ | |
eb191de6 | 872 | cardnum = (lo>>1)&0x7FFFF; |
873 | fc = ((hi&0xF)<<12)|(lo>>20); | |
874 | } | |
ba1a299c | 875 | } |
876 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
eb191de6 | 877 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, |
d5a72d2f | 878 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); |
b3b70669 | 879 | } |
ec75f5c1 | 880 | setDemodBuf(BitStream,BitLen,idx); |
881 | if (g_debugMode){ | |
882 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
883 | printDemodBuff(); | |
884 | } | |
885 | return 1; | |
886 | } | |
887 | ||
04d2721b | 888 | //by marshmellow |
889 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 890 | //print full Paradox Prox ID and some bit format details if found |
891 | int CmdFSKdemodParadox(const char *Cmd) | |
892 | { | |
893 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
894 | uint32_t hi2=0, hi=0, lo=0; | |
895 | ||
896 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
897 | size_t BitLen = getFromGraphBuf(BitStream); | |
e770c648 | 898 | if (BitLen==0) return 0; |
ec75f5c1 | 899 | //get binary from fsk wave |
a1d17964 | 900 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); |
ec75f5c1 | 901 | if (idx<0){ |
a1d17964 | 902 | if (g_debugMode){ |
903 | if (idx==-1){ | |
904 | PrintAndLog("DEBUG: Just Noise Detected"); | |
905 | } else if (idx == -2) { | |
906 | PrintAndLog("DEBUG: Error demoding fsk"); | |
907 | } else if (idx == -3) { | |
908 | PrintAndLog("DEBUG: Preamble not found"); | |
909 | } else if (idx == -4) { | |
910 | PrintAndLog("DEBUG: Error in Manchester data"); | |
911 | } else { | |
912 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
913 | } | |
914 | } | |
ec75f5c1 | 915 | return 0; |
916 | } | |
917 | if (hi2==0 && hi==0 && lo==0){ | |
918 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
919 | return 0; | |
920 | } | |
921 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
922 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
923 | ||
924 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x", | |
925 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF ); | |
926 | setDemodBuf(BitStream,BitLen,idx); | |
927 | if (g_debugMode){ | |
928 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
929 | printDemodBuff(); | |
930 | } | |
931 | return 1; | |
b3b70669 | 932 | } |
933 | ||
ec75f5c1 | 934 | |
2fc2150e | 935 | //by marshmellow |
eb191de6 | 936 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 |
937 | //print ioprox ID and some format details | |
b3b70669 | 938 | int CmdFSKdemodIO(const char *Cmd) |
939 | { | |
940 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
941 | //set defaults | |
ba1a299c | 942 | int idx=0; |
ec75f5c1 | 943 | //something in graphbuffer? |
944 | if (GraphTraceLen < 65) { | |
945 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
946 | return 0; | |
947 | } | |
eb191de6 | 948 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
ba1a299c | 949 | size_t BitLen = getFromGraphBuf(BitStream); |
e770c648 | 950 | if (BitLen==0) return 0; |
ec75f5c1 | 951 | |
eb191de6 | 952 | //get binary from fsk wave |
ba1a299c | 953 | idx = IOdemodFSK(BitStream,BitLen); |
eb191de6 | 954 | if (idx<0){ |
a1d17964 | 955 | if (g_debugMode){ |
956 | if (idx==-1){ | |
957 | PrintAndLog("DEBUG: Just Noise Detected"); | |
958 | } else if (idx == -2) { | |
959 | PrintAndLog("DEBUG: not enough samples"); | |
960 | } else if (idx == -3) { | |
961 | PrintAndLog("DEBUG: error during fskdemod"); | |
962 | } else if (idx == -4) { | |
963 | PrintAndLog("DEBUG: Preamble not found"); | |
964 | } else if (idx == -5) { | |
965 | PrintAndLog("DEBUG: Separator bits not found"); | |
966 | } else { | |
967 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
968 | } | |
969 | } | |
eb191de6 | 970 | return 0; |
971 | } | |
972 | if (idx==0){ | |
ec75f5c1 | 973 | if (g_debugMode==1){ |
974 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); | |
975 | if (BitLen > 92) printBitStream(BitStream,92); | |
976 | } | |
d5a72d2f | 977 | return 0; |
b3b70669 | 978 | } |
b3b70669 | 979 | //Index map |
980 | //0 10 20 30 40 50 60 | |
981 | //| | | | | | | | |
982 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
983 | //----------------------------------------------------------------------------- | |
984 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
985 | // | |
986 | //XSF(version)facility:codeone+codetwo (raw) | |
987 | //Handle the data | |
ec75f5c1 | 988 | if (idx+64>BitLen) { |
989 | if (g_debugMode==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen); | |
990 | return 0; | |
991 | } | |
eb191de6 | 992 | 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]); |
ba1a299c | 993 | 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 | 994 | 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]); |
995 | 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]); | |
996 | 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]); | |
997 | 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]); | |
998 | 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 | 999 | |
eb191de6 | 1000 | uint32_t code = bytebits_to_byte(BitStream+idx,32); |
ba1a299c | 1001 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); |
f822a063 | 1002 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 |
1003 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
eb191de6 | 1004 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 |
ba1a299c | 1005 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); |
ec75f5c1 | 1006 | setDemodBuf(BitStream,64,idx); |
1007 | if (g_debugMode){ | |
1008 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
1009 | printDemodBuff(); | |
1010 | } | |
1011 | return 1; | |
b3b70669 | 1012 | } |
1e090a61 | 1013 | |
1014 | ||
1015 | //by marshmellow | |
1016 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1017 | //print full AWID Prox ID and some bit format details if found | |
1018 | int CmdFSKdemodAWID(const char *Cmd) | |
1019 | { | |
1020 | ||
ec75f5c1 | 1021 | //int verbose=1; |
1022 | //sscanf(Cmd, "%i", &verbose); | |
1e090a61 | 1023 | |
1024 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1025 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1026 | size_t size = getFromGraphBuf(BitStream); | |
e770c648 | 1027 | if (size==0) return 0; |
1e090a61 | 1028 | |
1029 | //get binary from fsk wave | |
a1d17964 | 1030 | int idx = AWIDdemodFSK(BitStream, &size); |
1e090a61 | 1031 | if (idx<=0){ |
ec75f5c1 | 1032 | if (g_debugMode==1){ |
1e090a61 | 1033 | if (idx == -1) |
ec75f5c1 | 1034 | PrintAndLog("DEBUG: Error - not enough samples"); |
1e090a61 | 1035 | else if (idx == -2) |
a1d17964 | 1036 | PrintAndLog("DEBUG: Error - only noise found"); |
1e090a61 | 1037 | else if (idx == -3) |
ec75f5c1 | 1038 | PrintAndLog("DEBUG: Error - problem during FSK demod"); |
1e090a61 | 1039 | // else if (idx == -3) |
1040 | // PrintAndLog("Error: thought we had a tag but the parity failed"); | |
1041 | else if (idx == -4) | |
ec75f5c1 | 1042 | PrintAndLog("DEBUG: Error - AWID preamble not found"); |
1043 | else if (idx == -5) | |
a1d17964 | 1044 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); |
ec75f5c1 | 1045 | else |
1046 | PrintAndLog("DEBUG: Error %d",idx); | |
1e090a61 | 1047 | } |
1048 | return 0; | |
1049 | } | |
1050 | ||
1051 | // Index map | |
1052 | // 0 10 20 30 40 50 60 | |
1053 | // | | | | | | | | |
1054 | // 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 | |
1055 | // ----------------------------------------------------------------------------- | |
1056 | // 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 | |
1057 | // 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 | |
1058 | // |---26 bit---| |-----117----||-------------142-------------| | |
1059 | // b = format bit len, o = odd parity of last 3 bits | |
1060 | // f = facility code, c = card number | |
1061 | // w = wiegand parity | |
1062 | // (26 bit format shown) | |
1063 | ||
1064 | //get raw ID before removing parities | |
1065 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1066 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1067 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
ec75f5c1 | 1068 | setDemodBuf(BitStream,96,idx); |
1069 | ||
1e090a61 | 1070 | size = removeParity(BitStream, idx+8, 4, 1, 88); |
1071 | if (size != 66){ | |
ec75f5c1 | 1072 | if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); |
1e090a61 | 1073 | return 0; |
1074 | } | |
1075 | // ok valid card found! | |
1076 | ||
1077 | // Index map | |
1078 | // 0 10 20 30 40 50 60 | |
1079 | // | | | | | | | | |
1080 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1081 | // ----------------------------------------------------------------------------- | |
1082 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1083 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1084 | // |26 bit| |-117--| |-----142------| | |
1085 | // b = format bit len, o = odd parity of last 3 bits | |
1086 | // f = facility code, c = card number | |
1087 | // w = wiegand parity | |
1088 | // (26 bit format shown) | |
1089 | ||
1090 | uint32_t fc = 0; | |
1091 | uint32_t cardnum = 0; | |
1092 | uint32_t code1 = 0; | |
1093 | uint32_t code2 = 0; | |
1094 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1095 | if (fmtLen==26){ | |
1096 | fc = bytebits_to_byte(BitStream+9, 8); | |
1097 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1098 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1099 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); | |
1100 | } else { | |
1101 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1102 | if (fmtLen>32){ | |
1103 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1104 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
1105 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); | |
1106 | } else{ | |
1107 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1108 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); | |
1109 | } | |
1110 | } | |
ec75f5c1 | 1111 | if (g_debugMode){ |
1112 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1113 | printDemodBuff(); | |
1114 | } | |
1e090a61 | 1115 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands |
1e090a61 | 1116 | return 1; |
1117 | } | |
1118 | ||
1119 | //by marshmellow | |
1120 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1121 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1122 | int CmdFSKdemodPyramid(const char *Cmd) | |
1123 | { | |
1e090a61 | 1124 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1125 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1126 | size_t size = getFromGraphBuf(BitStream); | |
e770c648 | 1127 | if (size==0) return 0; |
1e090a61 | 1128 | |
1129 | //get binary from fsk wave | |
a1d17964 | 1130 | int idx = PyramiddemodFSK(BitStream, &size); |
1e090a61 | 1131 | if (idx < 0){ |
ec75f5c1 | 1132 | if (g_debugMode==1){ |
1e090a61 | 1133 | if (idx == -5) |
ec75f5c1 | 1134 | PrintAndLog("DEBUG: Error - not enough samples"); |
1e090a61 | 1135 | else if (idx == -1) |
a1d17964 | 1136 | PrintAndLog("DEBUG: Error - only noise found"); |
1e090a61 | 1137 | else if (idx == -2) |
ec75f5c1 | 1138 | PrintAndLog("DEBUG: Error - problem during FSK demod"); |
1139 | else if (idx == -3) | |
a1d17964 | 1140 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); |
1e090a61 | 1141 | else if (idx == -4) |
ec75f5c1 | 1142 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); |
1143 | else | |
1144 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1e090a61 | 1145 | } |
1e090a61 | 1146 | return 0; |
1147 | } | |
1e090a61 | 1148 | // Index map |
1149 | // 0 10 20 30 40 50 60 | |
1150 | // | | | | | | | | |
1151 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1152 | // ----------------------------------------------------------------------------- | |
1153 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1154 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1155 | ||
1156 | // 64 70 80 90 100 110 120 | |
1157 | // | | | | | | | | |
1158 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1159 | // ----------------------------------------------------------------------------- | |
1160 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1161 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1162 | // |---115---||---------71---------| | |
1163 | // s = format start bit, o = odd parity of last 7 bits | |
1164 | // f = facility code, c = card number | |
1165 | // w = wiegand parity, x = extra space for other formats | |
1166 | // p = unknown checksum | |
1167 | // (26 bit format shown) | |
1168 | ||
1169 | //get raw ID before removing parities | |
1170 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1171 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1172 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1173 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
ec75f5c1 | 1174 | setDemodBuf(BitStream,128,idx); |
1175 | ||
1e090a61 | 1176 | size = removeParity(BitStream, idx+8, 8, 1, 120); |
1177 | if (size != 105){ | |
ec75f5c1 | 1178 | if (g_debugMode==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); |
1e090a61 | 1179 | return 0; |
1180 | } | |
1181 | ||
1182 | // ok valid card found! | |
1183 | ||
1184 | // Index map | |
1185 | // 0 10 20 30 40 50 60 70 | |
1186 | // | | | | | | | | | |
1187 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1188 | // ----------------------------------------------------------------------- | |
1189 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1190 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1191 | ||
1192 | // 71 80 90 100 | |
1193 | // | | | | | |
1194 | // 1 2 34567890 1234567890123456 7 8901234 | |
1195 | // --------------------------------------- | |
1196 | // 1 1 01110011 0000000001000110 0 1001010 | |
1197 | // s w ffffffff cccccccccccccccc w ppppppp | |
1198 | // |--115-| |------71------| | |
1199 | // s = format start bit, o = odd parity of last 7 bits | |
1200 | // f = facility code, c = card number | |
1201 | // w = wiegand parity, x = extra space for other formats | |
1202 | // p = unknown checksum | |
1203 | // (26 bit format shown) | |
1204 | ||
1205 | //find start bit to get fmtLen | |
1e090a61 | 1206 | int j; |
1207 | for (j=0; j<size; j++){ | |
ec75f5c1 | 1208 | if(BitStream[j]) break; |
1e090a61 | 1209 | } |
1210 | uint8_t fmtLen = size-j-8; | |
1211 | uint32_t fc = 0; | |
1212 | uint32_t cardnum = 0; | |
1213 | uint32_t code1 = 0; | |
1214 | //uint32_t code2 = 0; | |
1215 | if (fmtLen==26){ | |
1216 | fc = bytebits_to_byte(BitStream+73, 8); | |
1217 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1218 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
ec75f5c1 | 1219 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1220 | } else if (fmtLen==45){ |
1221 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1222 | fc = bytebits_to_byte(BitStream+53, 10); | |
1223 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
ec75f5c1 | 1224 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1225 | } else { |
1226 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1227 | if (fmtLen>32){ | |
1228 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1229 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
ec75f5c1 | 1230 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1231 | } else{ |
1232 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
ec75f5c1 | 1233 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); |
1e090a61 | 1234 | } |
1235 | } | |
ec75f5c1 | 1236 | if (g_debugMode){ |
1237 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1238 | printDemodBuff(); | |
1239 | } | |
1e090a61 | 1240 | return 1; |
1241 | } | |
1242 | ||
e888ed8e | 1243 | int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating |
7fe9b0b7 | 1244 | { |
1245 | static const int LowTone[] = { | |
1246 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1247 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1248 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1249 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1250 | 1, 1, 1, 1, 1, -1, -1, -1, -1, -1 | |
1251 | }; | |
1252 | static const int HighTone[] = { | |
1253 | 1, 1, 1, 1, 1, -1, -1, -1, -1, | |
1254 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1255 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1256 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1257 | 1, 1, 1, 1, -1, -1, -1, -1, | |
1258 | 1, 1, 1, 1, -1, -1, -1, -1, -1, | |
1259 | }; | |
1260 | ||
1261 | int lowLen = sizeof (LowTone) / sizeof (int); | |
1262 | int highLen = sizeof (HighTone) / sizeof (int); | |
b915fda3 | 1263 | int convLen = (highLen > lowLen) ? highLen : lowLen; |
7fe9b0b7 | 1264 | uint32_t hi = 0, lo = 0; |
1265 | ||
1266 | int i, j; | |
1267 | int minMark = 0, maxMark = 0; | |
952a8bb5 | 1268 | |
7fe9b0b7 | 1269 | for (i = 0; i < GraphTraceLen - convLen; ++i) { |
1270 | int lowSum = 0, highSum = 0; | |
1271 | ||
1272 | for (j = 0; j < lowLen; ++j) { | |
1273 | lowSum += LowTone[j]*GraphBuffer[i+j]; | |
1274 | } | |
1275 | for (j = 0; j < highLen; ++j) { | |
1276 | highSum += HighTone[j] * GraphBuffer[i + j]; | |
1277 | } | |
1278 | lowSum = abs(100 * lowSum / lowLen); | |
1279 | highSum = abs(100 * highSum / highLen); | |
1280 | GraphBuffer[i] = (highSum << 16) | lowSum; | |
1281 | } | |
1282 | ||
1283 | for(i = 0; i < GraphTraceLen - convLen - 16; ++i) { | |
1284 | int lowTot = 0, highTot = 0; | |
1285 | // 10 and 8 are f_s divided by f_l and f_h, rounded | |
1286 | for (j = 0; j < 10; ++j) { | |
1287 | lowTot += (GraphBuffer[i+j] & 0xffff); | |
1288 | } | |
1289 | for (j = 0; j < 8; j++) { | |
1290 | highTot += (GraphBuffer[i + j] >> 16); | |
1291 | } | |
1292 | GraphBuffer[i] = lowTot - highTot; | |
1293 | if (GraphBuffer[i] > maxMark) maxMark = GraphBuffer[i]; | |
1294 | if (GraphBuffer[i] < minMark) minMark = GraphBuffer[i]; | |
1295 | } | |
1296 | ||
1297 | GraphTraceLen -= (convLen + 16); | |
1298 | RepaintGraphWindow(); | |
1299 | ||
b3b70669 | 1300 | // Find bit-sync (3 lo followed by 3 high) (HID ONLY) |
7fe9b0b7 | 1301 | int max = 0, maxPos = 0; |
1302 | for (i = 0; i < 6000; ++i) { | |
1303 | int dec = 0; | |
1304 | for (j = 0; j < 3 * lowLen; ++j) { | |
1305 | dec -= GraphBuffer[i + j]; | |
1306 | } | |
1307 | for (; j < 3 * (lowLen + highLen ); ++j) { | |
1308 | dec += GraphBuffer[i + j]; | |
1309 | } | |
1310 | if (dec > max) { | |
1311 | max = dec; | |
1312 | maxPos = i; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | // place start of bit sync marker in graph | |
1317 | GraphBuffer[maxPos] = maxMark; | |
1318 | GraphBuffer[maxPos + 1] = minMark; | |
1319 | ||
1320 | maxPos += j; | |
1321 | ||
1322 | // place end of bit sync marker in graph | |
1323 | GraphBuffer[maxPos] = maxMark; | |
1324 | GraphBuffer[maxPos+1] = minMark; | |
1325 | ||
1326 | PrintAndLog("actual data bits start at sample %d", maxPos); | |
1327 | PrintAndLog("length %d/%d", highLen, lowLen); | |
ba1a299c | 1328 | |
a1557c4c | 1329 | uint8_t bits[46] = {0x00}; |
ba1a299c | 1330 | |
7fe9b0b7 | 1331 | // find bit pairs and manchester decode them |
1332 | for (i = 0; i < arraylen(bits) - 1; ++i) { | |
1333 | int dec = 0; | |
1334 | for (j = 0; j < lowLen; ++j) { | |
1335 | dec -= GraphBuffer[maxPos + j]; | |
1336 | } | |
1337 | for (; j < lowLen + highLen; ++j) { | |
1338 | dec += GraphBuffer[maxPos + j]; | |
1339 | } | |
1340 | maxPos += j; | |
1341 | // place inter bit marker in graph | |
1342 | GraphBuffer[maxPos] = maxMark; | |
1343 | GraphBuffer[maxPos + 1] = minMark; | |
1344 | ||
1345 | // hi and lo form a 64 bit pair | |
1346 | hi = (hi << 1) | (lo >> 31); | |
1347 | lo = (lo << 1); | |
1348 | // store decoded bit as binary (in hi/lo) and text (in bits[]) | |
1349 | if(dec < 0) { | |
1350 | bits[i] = '1'; | |
1351 | lo |= 1; | |
1352 | } else { | |
1353 | bits[i] = '0'; | |
1354 | } | |
1355 | } | |
1356 | PrintAndLog("bits: '%s'", bits); | |
1357 | PrintAndLog("hex: %08x %08x", hi, lo); | |
1358 | return 0; | |
1359 | } | |
e888ed8e | 1360 | |
ec75f5c1 | 1361 | //by marshmellow |
1362 | //attempt to detect the field clock and bit clock for FSK | |
1e090a61 | 1363 | int CmdFSKfcDetect(const char *Cmd) |
1364 | { | |
1365 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1366 | size_t size = getFromGraphBuf(BitStream); | |
e770c648 | 1367 | if (size==0) return 0; |
1368 | uint8_t dummy = 0; | |
1369 | uint16_t ans = countFC(BitStream, size, &dummy); | |
03e6bb4a | 1370 | if (ans==0) { |
1371 | if (g_debugMode) PrintAndLog("DEBUG: No data found"); | |
1372 | return 0; | |
1373 | } | |
1374 | uint8_t fc1, fc2; | |
1e090a61 | 1375 | fc1 = (ans >> 8) & 0xFF; |
1376 | fc2 = ans & 0xFF; | |
03e6bb4a | 1377 | |
1378 | uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2); | |
1379 | if (rf1==0) { | |
1380 | if (g_debugMode) PrintAndLog("DEBUG: Clock detect error"); | |
1381 | return 0; | |
1382 | } | |
e770c648 | 1383 | if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){ |
1384 | if (g_debugMode){ | |
1385 | PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); | |
1386 | return 1; | |
1387 | } | |
1388 | } | |
1389 | if (g_debugMode){ | |
1390 | PrintAndLog("DEBUG: unknown fsk field clock detected"); | |
1391 | PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); | |
1392 | } | |
1393 | return 0; | |
1e090a61 | 1394 | } |
1395 | ||
8c65b650 | 1396 | //by marshmellow |
e770c648 | 1397 | //attempt to detect the bit clock for PSK modulations |
1398 | int CmdDetectPSKClockRate(const char *Cmd) | |
4118b74d | 1399 | { |
e770c648 | 1400 | GetPskClock("",0,0); |
ba1a299c | 1401 | return 0; |
4118b74d | 1402 | } |
1403 | ||
8c65b650 | 1404 | //by marshmellow |
e770c648 | 1405 | //attempt to detect the bit clock for NRZ modulations |
1406 | int CmdDetectNRZClockRate(const char *Cmd) | |
ec75f5c1 | 1407 | { |
e770c648 | 1408 | GetNrzClock("",0,0); |
1409 | return 0; | |
1410 | } | |
ba1a299c | 1411 | |
e770c648 | 1412 | //by marshmellow |
1413 | //attempt to psk1 demod graph buffer | |
1414 | int PSKDemod(const char *Cmd, uint8_t verbose) | |
1415 | { | |
1416 | int invert=0; | |
1417 | int clk=0; | |
1418 | int maxErr=100; | |
1419 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1420 | if (clk==1){ | |
1421 | invert=1; | |
1422 | clk=0; | |
1423 | } | |
1424 | if (invert != 0 && invert != 1) { | |
1425 | PrintAndLog("Invalid argument: %s", Cmd); | |
1426 | return -1; | |
1427 | } | |
1428 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1429 | size_t BitLen = getFromGraphBuf(BitStream); | |
1430 | if (BitLen==0) return 0; | |
1431 | int errCnt=0; | |
1432 | errCnt = pskRawDemod(BitStream, &BitLen,&clk,&invert); | |
1433 | if (errCnt > maxErr){ | |
1434 | if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1435 | return -1; | |
1436 | } | |
1437 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
1438 | if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1439 | return -1; | |
1440 | } | |
1441 | if (verbose) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1442 | //prime demod buffer for output | |
1443 | setDemodBuf(BitStream,BitLen,0); | |
1444 | return errCnt; | |
4118b74d | 1445 | } |
e770c648 | 1446 | |
1447 | ||
4118b74d | 1448 | // Indala 26 bit decode |
1449 | // by marshmellow | |
1450 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1451 | int CmdIndalaDecode(const char *Cmd) | |
1452 | { | |
84871873 | 1453 | int ans; |
1454 | if (strlen(Cmd)>0){ | |
e770c648 | 1455 | ans = PSKDemod(Cmd, 0); |
84871873 | 1456 | } else{ //default to RF/32 |
e770c648 | 1457 | ans = PSKDemod("32", 0); |
84871873 | 1458 | } |
4118b74d | 1459 | |
ba1a299c | 1460 | if (ans < 0){ |
ec75f5c1 | 1461 | if (g_debugMode==1) |
84871873 | 1462 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1463 | return 0; |
1464 | } | |
1465 | uint8_t invert=0; | |
1466 | ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); | |
1467 | if (ans < 1) { | |
ec75f5c1 | 1468 | if (g_debugMode==1) |
84871873 | 1469 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1470 | return -1; |
1471 | } | |
a1d17964 | 1472 | char showbits[251]={0x00}; |
84871873 | 1473 | if (invert) |
ec75f5c1 | 1474 | if (g_debugMode==1) |
84871873 | 1475 | PrintAndLog("Had to invert bits"); |
ec75f5c1 | 1476 | |
ba1a299c | 1477 | //convert UID to HEX |
1478 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
1479 | int idx; | |
1480 | uid1=0; | |
1481 | uid2=0; | |
1482 | PrintAndLog("BitLen: %d",DemodBufferLen); | |
1483 | if (DemodBufferLen==64){ | |
1484 | for( idx=0; idx<64; idx++) { | |
1485 | uid1=(uid1<<1)|(uid2>>31); | |
1486 | if (DemodBuffer[idx] == 0) { | |
1487 | uid2=(uid2<<1)|0; | |
1488 | showbits[idx]='0'; | |
1489 | } else { | |
1490 | uid2=(uid2<<1)|1; | |
1491 | showbits[idx]='1'; | |
1492 | } | |
1493 | } | |
1494 | showbits[idx]='\0'; | |
1495 | PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); | |
1496 | } | |
1497 | else { | |
1498 | uid3=0; | |
1499 | uid4=0; | |
1500 | uid5=0; | |
1501 | uid6=0; | |
1502 | uid7=0; | |
1503 | for( idx=0; idx<DemodBufferLen; idx++) { | |
1504 | uid1=(uid1<<1)|(uid2>>31); | |
1505 | uid2=(uid2<<1)|(uid3>>31); | |
1506 | uid3=(uid3<<1)|(uid4>>31); | |
1507 | uid4=(uid4<<1)|(uid5>>31); | |
1508 | uid5=(uid5<<1)|(uid6>>31); | |
1509 | uid6=(uid6<<1)|(uid7>>31); | |
1510 | if (DemodBuffer[idx] == 0) { | |
1511 | uid7=(uid7<<1)|0; | |
1512 | showbits[idx]='0'; | |
1513 | } | |
1514 | else { | |
1515 | uid7=(uid7<<1)|1; | |
1516 | showbits[idx]='1'; | |
1517 | } | |
1518 | } | |
1519 | showbits[idx]='\0'; | |
1520 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); | |
1521 | } | |
a1d17964 | 1522 | if (g_debugMode){ |
1523 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1524 | printDemodBuff(); | |
1525 | } | |
ba1a299c | 1526 | return 1; |
4118b74d | 1527 | } |
1528 | ||
e770c648 | 1529 | /* |
8c65b650 | 1530 | //by marshmellow |
1531 | //attempt to clean psk wave noise after a peak | |
1532 | //NOTE RELIES ON PEAKS :( | |
4118b74d | 1533 | int CmdPskClean(const char *Cmd) |
1534 | { | |
ba1a299c | 1535 | uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0}; |
1536 | size_t bitLen = getFromGraphBuf(bitStream); | |
1537 | pskCleanWave(bitStream, bitLen); | |
1538 | setGraphBuf(bitStream, bitLen); | |
1539 | return 0; | |
4118b74d | 1540 | } |
e770c648 | 1541 | */ |
4118b74d | 1542 | |
04d2721b | 1543 | // by marshmellow |
e770c648 | 1544 | // takes 3 arguments - clock, invert, maxErr as integers |
1545 | // attempts to demodulate nrz only | |
1546 | // prints binary found and saves in demodbuffer for further commands | |
1547 | int CmdNRZrawDemod(const char *Cmd) | |
1548 | { | |
1549 | int invert=0; | |
1550 | int clk=0; | |
1551 | int maxErr=100; | |
1552 | char cmdp = param_getchar(Cmd, 0); | |
1553 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
1554 | PrintAndLog("Usage: data nrzrawdemod [clock] <0|1> [maxError]"); | |
1555 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1556 | PrintAndLog(" <invert>, 1 for invert output"); | |
1557 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1558 | PrintAndLog(""); | |
1559 | PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer"); | |
1560 | PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1561 | PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1562 | PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1563 | PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
1564 | ||
1565 | return 0; | |
1566 | } | |
1567 | ||
1568 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1569 | if (clk==1){ | |
1570 | invert=1; | |
1571 | clk=0; | |
1572 | } | |
1573 | if (invert != 0 && invert != 1) { | |
1574 | PrintAndLog("Invalid argument: %s", Cmd); | |
1575 | return 0; | |
1576 | } | |
1577 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1578 | size_t BitLen = getFromGraphBuf(BitStream); | |
1579 | if (BitLen==0) return 0; | |
1580 | int errCnt=0; | |
1581 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
1582 | if (errCnt > maxErr){ | |
1583 | if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1584 | return 0; | |
1585 | } | |
1586 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
1587 | if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1588 | return 0; | |
1589 | } | |
1590 | PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1591 | //prime demod buffer for output | |
1592 | setDemodBuf(BitStream,BitLen,0); | |
1593 | ||
1594 | if (errCnt>0){ | |
1595 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); | |
1596 | }else{ | |
1597 | } | |
1598 | PrintAndLog("NRZ demoded bitstream:"); | |
1599 | // Now output the bitstream to the scrollback by line of 16 bits | |
1600 | printDemodBuff(); | |
1601 | return 1; | |
1602 | } | |
1603 | ||
1604 | // by marshmellow | |
1605 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 1606 | // attempts to demodulate psk only |
1607 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1608 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1609 | { |
84871873 | 1610 | int errCnt; |
e770c648 | 1611 | char cmdp = param_getchar(Cmd, 0); |
1612 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
1613 | PrintAndLog("Usage: data psk1rawdemod [clock] <0|1> [maxError]"); | |
1614 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1615 | PrintAndLog(" <invert>, 1 for invert output"); | |
1616 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1617 | PrintAndLog(""); | |
1618 | PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer"); | |
1619 | PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1620 | PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1621 | PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1622 | PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
1623 | return 0; | |
1624 | } | |
1625 | errCnt = PSKDemod(Cmd, 1); | |
ba1a299c | 1626 | //output |
ec75f5c1 | 1627 | if (errCnt<0){ |
e770c648 | 1628 | if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); |
ec75f5c1 | 1629 | return 0; |
e770c648 | 1630 | } |
ba1a299c | 1631 | if (errCnt>0){ |
e770c648 | 1632 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); |
ec75f5c1 | 1633 | }else{ |
ec75f5c1 | 1634 | } |
e770c648 | 1635 | PrintAndLog("PSK demoded bitstream:"); |
1636 | // Now output the bitstream to the scrollback by line of 16 bits | |
1637 | printDemodBuff(); | |
1638 | return 1; | |
4118b74d | 1639 | } |
1640 | ||
04d2721b | 1641 | // by marshmellow |
1642 | // takes same args as cmdpsknrzrawdemod | |
1643 | int CmdPSK2rawDemod(const char *Cmd) | |
1644 | { | |
1645 | int errCnt=0; | |
e770c648 | 1646 | char cmdp = param_getchar(Cmd, 0); |
1647 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
1648 | PrintAndLog("Usage: data psk2rawdemod [clock] <0|1> [maxError]"); | |
1649 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1650 | PrintAndLog(" <invert>, 1 for invert output"); | |
1651 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1652 | PrintAndLog(""); | |
1653 | PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1654 | PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1655 | PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1656 | PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1657 | PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); | |
1658 | return 0; | |
1659 | } | |
1660 | errCnt=PSKDemod(Cmd, 1); | |
04d2721b | 1661 | if (errCnt<0){ |
1662 | if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); | |
1663 | return 0; | |
1664 | } | |
1665 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1666 | if (errCnt>0){ | |
1667 | if (g_debugMode){ | |
1668 | PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); | |
1669 | PrintAndLog("PSK2 demoded bitstream:"); | |
1670 | // Now output the bitstream to the scrollback by line of 16 bits | |
1671 | printDemodBuff(); | |
1672 | } | |
1673 | }else{ | |
1674 | PrintAndLog("PSK2 demoded bitstream:"); | |
1675 | // Now output the bitstream to the scrollback by line of 16 bits | |
1676 | printDemodBuff(); | |
1677 | } | |
1678 | return 1; | |
1679 | } | |
1680 | ||
7fe9b0b7 | 1681 | int CmdGrid(const char *Cmd) |
1682 | { | |
1683 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); | |
7ddb9900 | 1684 | PlotGridXdefault= PlotGridX; |
1685 | PlotGridYdefault= PlotGridY; | |
7fe9b0b7 | 1686 | RepaintGraphWindow(); |
1687 | return 0; | |
1688 | } | |
1689 | ||
1690 | int CmdHexsamples(const char *Cmd) | |
1691 | { | |
4961e292 | 1692 | int i, j; |
7fe9b0b7 | 1693 | int requested = 0; |
1694 | int offset = 0; | |
4961e292 | 1695 | char string_buf[25]; |
1696 | char* string_ptr = string_buf; | |
f71f4deb | 1697 | uint8_t got[BIGBUF_SIZE]; |
952a8bb5 | 1698 | |
4961e292 | 1699 | sscanf(Cmd, "%i %i", &requested, &offset); |
90d74dc2 | 1700 | |
4961e292 | 1701 | /* if no args send something */ |
1702 | if (requested == 0) { | |
90d74dc2 | 1703 | requested = 8; |
1704 | } | |
90d74dc2 | 1705 | if (offset + requested > sizeof(got)) { |
f71f4deb | 1706 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); |
4961e292 | 1707 | return 0; |
952a8bb5 | 1708 | } |
90d74dc2 | 1709 | |
4961e292 | 1710 | GetFromBigBuf(got,requested,offset); |
90d74dc2 | 1711 | WaitForResponse(CMD_ACK,NULL); |
1712 | ||
4961e292 | 1713 | i = 0; |
1714 | for (j = 0; j < requested; j++) { | |
1715 | i++; | |
1716 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1717 | if (i == 8) { | |
1718 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1719 | PrintAndLog("%s", string_buf); | |
1720 | string_buf[0] = '\0'; | |
1721 | string_ptr = string_buf; | |
1722 | i = 0; | |
1723 | } | |
1724 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1725 | *(string_ptr - 1) = '\0'; | |
1726 | PrintAndLog("%s", string_buf); | |
1727 | string_buf[0] = '\0'; | |
7fe9b0b7 | 1728 | } |
ba1a299c | 1729 | } |
7fe9b0b7 | 1730 | return 0; |
1731 | } | |
1732 | ||
7fe9b0b7 | 1733 | int CmdHide(const char *Cmd) |
1734 | { | |
1735 | HideGraphWindow(); | |
1736 | return 0; | |
1737 | } | |
1738 | ||
1739 | int CmdHpf(const char *Cmd) | |
1740 | { | |
1741 | int i; | |
1742 | int accum = 0; | |
1743 | ||
1744 | for (i = 10; i < GraphTraceLen; ++i) | |
1745 | accum += GraphBuffer[i]; | |
1746 | accum /= (GraphTraceLen - 10); | |
1747 | for (i = 0; i < GraphTraceLen; ++i) | |
1748 | GraphBuffer[i] -= accum; | |
1749 | ||
1750 | RepaintGraphWindow(); | |
1751 | return 0; | |
1752 | } | |
1753 | ||
8d183c53 | 1754 | int CmdSamples(const char *Cmd) |
7fe9b0b7 | 1755 | { |
f71f4deb | 1756 | uint8_t got[BIGBUF_SIZE] = {0x00}; |
ba1a299c | 1757 | |
d6d20c54 | 1758 | int n = strtol(Cmd, NULL, 0); |
1759 | if (n == 0) | |
1760 | n = 20000; | |
1761 | ||
1762 | if (n > sizeof(got)) | |
1763 | n = sizeof(got); | |
ba1a299c | 1764 | |
d6d20c54 | 1765 | PrintAndLog("Reading %d samples from device memory\n", n); |
f71f4deb | 1766 | GetFromBigBuf(got,n,0); |
1767 | WaitForResponse(CMD_ACK,NULL); | |
ba1a299c | 1768 | for (int j = 0; j < n; j++) { |
d6d20c54 | 1769 | GraphBuffer[j] = ((int)got[j]) - 128; |
f71f4deb | 1770 | } |
1771 | GraphTraceLen = n; | |
1772 | RepaintGraphWindow(); | |
1773 | return 0; | |
7fe9b0b7 | 1774 | } |
1775 | ||
d6a120a2 MHS |
1776 | int CmdTuneSamples(const char *Cmd) |
1777 | { | |
3aa4014b | 1778 | int timeout = 0; |
1779 | printf("\nMeasuring antenna characteristics, please wait..."); | |
ba1a299c | 1780 | |
3aa4014b | 1781 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; |
1782 | SendCommand(&c); | |
1783 | ||
1784 | UsbCommand resp; | |
1785 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1786 | timeout++; | |
1787 | printf("."); | |
1788 | if (timeout > 7) { | |
1789 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1790 | return 1; | |
1791 | } | |
1792 | } | |
1793 | ||
1794 | int peakv, peakf; | |
1795 | int vLf125, vLf134, vHf; | |
1796 | vLf125 = resp.arg[0] & 0xffff; | |
1797 | vLf134 = resp.arg[0] >> 16; | |
1798 | vHf = resp.arg[1] & 0xffff;; | |
1799 | peakf = resp.arg[2] & 0xffff; | |
1800 | peakv = resp.arg[2] >> 16; | |
1801 | PrintAndLog(""); | |
1802 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1803 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1804 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1805 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
1806 | if (peakv<2000) | |
1807 | PrintAndLog("# Your LF antenna is unusable."); | |
1808 | else if (peakv<10000) | |
1809 | PrintAndLog("# Your LF antenna is marginal."); | |
1810 | if (vHf<2000) | |
1811 | PrintAndLog("# Your HF antenna is unusable."); | |
1812 | else if (vHf<5000) | |
1813 | PrintAndLog("# Your HF antenna is marginal."); | |
1814 | ||
1815 | for (int i = 0; i < 256; i++) { | |
1816 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
ba1a299c | 1817 | } |
1818 | ||
d5a72d2f | 1819 | PrintAndLog("Done! Divisor 89 is 134khz, 95 is 125khz.\n"); |
1820 | PrintAndLog("\n"); | |
3aa4014b | 1821 | GraphTraceLen = 256; |
1822 | ShowGraphWindow(); | |
1823 | ||
1824 | return 0; | |
d6a120a2 MHS |
1825 | } |
1826 | ||
3aa4014b | 1827 | |
7fe9b0b7 | 1828 | int CmdLoad(const char *Cmd) |
1829 | { | |
ec75f5c1 | 1830 | char filename[FILE_PATH_SIZE] = {0x00}; |
1831 | int len = 0; | |
b915fda3 | 1832 | |
ec75f5c1 | 1833 | len = strlen(Cmd); |
1834 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1835 | memcpy(filename, Cmd, len); | |
b915fda3 | 1836 | |
ec75f5c1 | 1837 | FILE *f = fopen(filename, "r"); |
7fe9b0b7 | 1838 | if (!f) { |
b915fda3 | 1839 | PrintAndLog("couldn't open '%s'", filename); |
7fe9b0b7 | 1840 | return 0; |
1841 | } | |
1842 | ||
1843 | GraphTraceLen = 0; | |
1844 | char line[80]; | |
1845 | while (fgets(line, sizeof (line), f)) { | |
1846 | GraphBuffer[GraphTraceLen] = atoi(line); | |
1847 | GraphTraceLen++; | |
1848 | } | |
1849 | fclose(f); | |
1850 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
1851 | RepaintGraphWindow(); | |
1852 | return 0; | |
1853 | } | |
1854 | ||
1855 | int CmdLtrim(const char *Cmd) | |
1856 | { | |
1857 | int ds = atoi(Cmd); | |
1858 | ||
1859 | for (int i = ds; i < GraphTraceLen; ++i) | |
1860 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
1861 | GraphTraceLen -= ds; | |
1862 | ||
1863 | RepaintGraphWindow(); | |
1864 | return 0; | |
1865 | } | |
ec75f5c1 | 1866 | |
1867 | // trim graph to input argument length | |
9ec1416a | 1868 | int CmdRtrim(const char *Cmd) |
1869 | { | |
1870 | int ds = atoi(Cmd); | |
1871 | ||
1872 | GraphTraceLen = ds; | |
1873 | ||
1874 | RepaintGraphWindow(); | |
1875 | return 0; | |
1876 | } | |
7fe9b0b7 | 1877 | |
1878 | /* | |
1879 | * Manchester demodulate a bitstream. The bitstream needs to be already in | |
1880 | * the GraphBuffer as 0 and 1 values | |
1881 | * | |
1882 | * Give the clock rate as argument in order to help the sync - the algorithm | |
1883 | * resyncs at each pulse anyway. | |
1884 | * | |
1885 | * Not optimized by any means, this is the 1st time I'm writing this type of | |
1886 | * routine, feel free to improve... | |
1887 | * | |
1888 | * 1st argument: clock rate (as number of samples per clock rate) | |
1889 | * Typical values can be 64, 32, 128... | |
1890 | */ | |
1891 | int CmdManchesterDemod(const char *Cmd) | |
1892 | { | |
1893 | int i, j, invert= 0; | |
1894 | int bit; | |
1895 | int clock; | |
fddf220a | 1896 | int lastval = 0; |
7fe9b0b7 | 1897 | int low = 0; |
1898 | int high = 0; | |
1899 | int hithigh, hitlow, first; | |
1900 | int lc = 0; | |
1901 | int bitidx = 0; | |
1902 | int bit2idx = 0; | |
1903 | int warnings = 0; | |
1904 | ||
1905 | /* check if we're inverting output */ | |
c6f1fb9d | 1906 | if (*Cmd == 'i') |
7fe9b0b7 | 1907 | { |
1908 | PrintAndLog("Inverting output"); | |
1909 | invert = 1; | |
fffad860 | 1910 | ++Cmd; |
7fe9b0b7 | 1911 | do |
1912 | ++Cmd; | |
1913 | while(*Cmd == ' '); // in case a 2nd argument was given | |
1914 | } | |
1915 | ||
1916 | /* Holds the decoded bitstream: each clock period contains 2 bits */ | |
1917 | /* later simplified to 1 bit after manchester decoding. */ | |
1918 | /* Add 10 bits to allow for noisy / uncertain traces without aborting */ | |
1919 | /* int BitStream[GraphTraceLen*2/clock+10]; */ | |
1920 | ||
1921 | /* But it does not work if compiling on WIndows: therefore we just allocate a */ | |
1922 | /* large array */ | |
90e278d3 | 1923 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0}; |
7fe9b0b7 | 1924 | |
1925 | /* Detect high and lows */ | |
1926 | for (i = 0; i < GraphTraceLen; i++) | |
1927 | { | |
1928 | if (GraphBuffer[i] > high) | |
1929 | high = GraphBuffer[i]; | |
1930 | else if (GraphBuffer[i] < low) | |
1931 | low = GraphBuffer[i]; | |
1932 | } | |
1933 | ||
1934 | /* Get our clock */ | |
1935 | clock = GetClock(Cmd, high, 1); | |
1936 | ||
1937 | int tolerance = clock/4; | |
1938 | ||
1939 | /* Detect first transition */ | |
1940 | /* Lo-Hi (arbitrary) */ | |
1941 | /* skip to the first high */ | |
1942 | for (i= 0; i < GraphTraceLen; i++) | |
1943 | if (GraphBuffer[i] == high) | |
1944 | break; | |
1945 | /* now look for the first low */ | |
1946 | for (; i < GraphTraceLen; i++) | |
1947 | { | |
1948 | if (GraphBuffer[i] == low) | |
1949 | { | |
1950 | lastval = i; | |
1951 | break; | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | /* If we're not working with 1/0s, demod based off clock */ | |
1956 | if (high != 1) | |
1957 | { | |
1958 | bit = 0; /* We assume the 1st bit is zero, it may not be | |
1959 | * the case: this routine (I think) has an init problem. | |
1960 | * Ed. | |
1961 | */ | |
1962 | for (; i < (int)(GraphTraceLen / clock); i++) | |
1963 | { | |
1964 | hithigh = 0; | |
1965 | hitlow = 0; | |
1966 | first = 1; | |
1967 | ||
1968 | /* Find out if we hit both high and low peaks */ | |
1969 | for (j = 0; j < clock; j++) | |
1970 | { | |
1971 | if (GraphBuffer[(i * clock) + j] == high) | |
1972 | hithigh = 1; | |
1973 | else if (GraphBuffer[(i * clock) + j] == low) | |
1974 | hitlow = 1; | |
1975 | ||
1976 | /* it doesn't count if it's the first part of our read | |
1977 | because it's really just trailing from the last sequence */ | |
1978 | if (first && (hithigh || hitlow)) | |
1979 | hithigh = hitlow = 0; | |
1980 | else | |
1981 | first = 0; | |
1982 | ||
1983 | if (hithigh && hitlow) | |
1984 | break; | |
1985 | } | |
1986 | ||
1987 | /* If we didn't hit both high and low peaks, we had a bit transition */ | |
1988 | if (!hithigh || !hitlow) | |
1989 | bit ^= 1; | |
1990 | ||
1991 | BitStream[bit2idx++] = bit ^ invert; | |
1992 | } | |
1993 | } | |
1994 | ||
1995 | /* standard 1/0 bitstream */ | |
1996 | else | |
1997 | { | |
1998 | ||
1999 | /* Then detect duration between 2 successive transitions */ | |
2000 | for (bitidx = 1; i < GraphTraceLen; i++) | |
2001 | { | |
2002 | if (GraphBuffer[i-1] != GraphBuffer[i]) | |
2003 | { | |
b3b70669 | 2004 | lc = i-lastval; |
2005 | lastval = i; | |
2006 | ||
2007 | // Error check: if bitidx becomes too large, we do not | |
2008 | // have a Manchester encoded bitstream or the clock is really | |
2009 | // wrong! | |
2010 | if (bitidx > (GraphTraceLen*2/clock+8) ) { | |
2011 | PrintAndLog("Error: the clock you gave is probably wrong, aborting."); | |
2012 | return 0; | |
2013 | } | |
2014 | // Then switch depending on lc length: | |
2015 | // Tolerance is 1/4 of clock rate (arbitrary) | |
2016 | if (abs(lc-clock/2) < tolerance) { | |
2017 | // Short pulse : either "1" or "0" | |
2018 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2019 | } else if (abs(lc-clock) < tolerance) { | |
2020 | // Long pulse: either "11" or "00" | |
2021 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2022 | BitStream[bitidx++]=GraphBuffer[i-1]; | |
2023 | } else { | |
7fe9b0b7 | 2024 | // Error |
2025 | warnings++; | |
b3b70669 | 2026 | PrintAndLog("Warning: Manchester decode error for pulse width detection."); |
2027 | PrintAndLog("(too many of those messages mean either the stream is not Manchester encoded, or clock is wrong)"); | |
7fe9b0b7 | 2028 | |
2029 | if (warnings > 10) | |
2030 | { | |
2031 | PrintAndLog("Error: too many detection errors, aborting."); | |
2032 | return 0; | |
2033 | } | |
2034 | } | |
2035 | } | |
2036 | } | |
2037 | ||
2038 | // At this stage, we now have a bitstream of "01" ("1") or "10" ("0"), parse it into final decoded bitstream | |
2039 | // Actually, we overwrite BitStream with the new decoded bitstream, we just need to be careful | |
2040 | // to stop output at the final bitidx2 value, not bitidx | |
2041 | for (i = 0; i < bitidx; i += 2) { | |
2042 | if ((BitStream[i] == 0) && (BitStream[i+1] == 1)) { | |
2043 | BitStream[bit2idx++] = 1 ^ invert; | |
b3b70669 | 2044 | } else if ((BitStream[i] == 1) && (BitStream[i+1] == 0)) { |
2045 | BitStream[bit2idx++] = 0 ^ invert; | |
2046 | } else { | |
2047 | // We cannot end up in this state, this means we are unsynchronized, | |
2048 | // move up 1 bit: | |
2049 | i++; | |
7fe9b0b7 | 2050 | warnings++; |
b3b70669 | 2051 | PrintAndLog("Unsynchronized, resync..."); |
2052 | PrintAndLog("(too many of those messages mean the stream is not Manchester encoded)"); | |
7fe9b0b7 | 2053 | |
2054 | if (warnings > 10) | |
2055 | { | |
2056 | PrintAndLog("Error: too many decode errors, aborting."); | |
2057 | return 0; | |
2058 | } | |
2059 | } | |
2060 | } | |
2061 | } | |
2062 | ||
2063 | PrintAndLog("Manchester decoded bitstream"); | |
2064 | // Now output the bitstream to the scrollback by line of 16 bits | |
2065 | for (i = 0; i < (bit2idx-16); i+=16) { | |
2066 | PrintAndLog("%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i", | |
2067 | BitStream[i], | |
2068 | BitStream[i+1], | |
2069 | BitStream[i+2], | |
2070 | BitStream[i+3], | |
2071 | BitStream[i+4], | |
2072 | BitStream[i+5], | |
2073 | BitStream[i+6], | |
2074 | BitStream[i+7], | |
2075 | BitStream[i+8], | |
2076 | BitStream[i+9], | |
2077 | BitStream[i+10], | |
2078 | BitStream[i+11], | |
2079 | BitStream[i+12], | |
2080 | BitStream[i+13], | |
2081 | BitStream[i+14], | |
2082 | BitStream[i+15]); | |
2083 | } | |
2084 | return 0; | |
2085 | } | |
2086 | ||
2087 | /* Modulate our data into manchester */ | |
2088 | int CmdManchesterMod(const char *Cmd) | |
2089 | { | |
2090 | int i, j; | |
2091 | int clock; | |
2092 | int bit, lastbit, wave; | |
2093 | ||
2094 | /* Get our clock */ | |
2095 | clock = GetClock(Cmd, 0, 1); | |
2096 | ||
2097 | wave = 0; | |
2098 | lastbit = 1; | |
2099 | for (i = 0; i < (int)(GraphTraceLen / clock); i++) | |
2100 | { | |
2101 | bit = GraphBuffer[i * clock] ^ 1; | |
2102 | ||
2103 | for (j = 0; j < (int)(clock/2); j++) | |
2104 | GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave; | |
2105 | for (j = (int)(clock/2); j < clock; j++) | |
2106 | GraphBuffer[(i * clock) + j] = bit ^ lastbit ^ wave ^ 1; | |
2107 | ||
2108 | /* Keep track of how we start our wave and if we changed or not this time */ | |
2109 | wave ^= bit ^ lastbit; | |
2110 | lastbit = bit; | |
2111 | } | |
2112 | ||
2113 | RepaintGraphWindow(); | |
2114 | return 0; | |
2115 | } | |
2116 | ||
2117 | int CmdNorm(const char *Cmd) | |
2118 | { | |
2119 | int i; | |
2120 | int max = INT_MIN, min = INT_MAX; | |
2121 | ||
2122 | for (i = 10; i < GraphTraceLen; ++i) { | |
2123 | if (GraphBuffer[i] > max) | |
2124 | max = GraphBuffer[i]; | |
2125 | if (GraphBuffer[i] < min) | |
2126 | min = GraphBuffer[i]; | |
2127 | } | |
2128 | ||
2129 | if (max != min) { | |
2130 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 2131 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
7fe9b0b7 | 2132 | (max - min); |
ba1a299c | 2133 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
7fe9b0b7 | 2134 | } |
2135 | } | |
2136 | RepaintGraphWindow(); | |
2137 | return 0; | |
2138 | } | |
2139 | ||
2140 | int CmdPlot(const char *Cmd) | |
2141 | { | |
2142 | ShowGraphWindow(); | |
2143 | return 0; | |
2144 | } | |
2145 | ||
2146 | int CmdSave(const char *Cmd) | |
2147 | { | |
ec75f5c1 | 2148 | char filename[FILE_PATH_SIZE] = {0x00}; |
2149 | int len = 0; | |
b915fda3 | 2150 | |
ec75f5c1 | 2151 | len = strlen(Cmd); |
2152 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2153 | memcpy(filename, Cmd, len); | |
b915fda3 | 2154 | |
2155 | ||
2156 | FILE *f = fopen(filename, "w"); | |
7fe9b0b7 | 2157 | if(!f) { |
b915fda3 | 2158 | PrintAndLog("couldn't open '%s'", filename); |
7fe9b0b7 | 2159 | return 0; |
2160 | } | |
2161 | int i; | |
2162 | for (i = 0; i < GraphTraceLen; i++) { | |
2163 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2164 | } | |
2165 | fclose(f); | |
2166 | PrintAndLog("saved to '%s'", Cmd); | |
2167 | return 0; | |
2168 | } | |
2169 | ||
2170 | int CmdScale(const char *Cmd) | |
2171 | { | |
2172 | CursorScaleFactor = atoi(Cmd); | |
2173 | if (CursorScaleFactor == 0) { | |
2174 | PrintAndLog("bad, can't have zero scale"); | |
2175 | CursorScaleFactor = 1; | |
2176 | } | |
2177 | RepaintGraphWindow(); | |
2178 | return 0; | |
2179 | } | |
2180 | ||
2181 | int CmdThreshold(const char *Cmd) | |
2182 | { | |
2183 | int threshold = atoi(Cmd); | |
2184 | ||
2185 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2186 | if (GraphBuffer[i] >= threshold) | |
2187 | GraphBuffer[i] = 1; | |
2188 | else | |
7bb9d33e | 2189 | GraphBuffer[i] = -1; |
7fe9b0b7 | 2190 | } |
2191 | RepaintGraphWindow(); | |
2192 | return 0; | |
2193 | } | |
2194 | ||
d51b2eda MHS |
2195 | int CmdDirectionalThreshold(const char *Cmd) |
2196 | { | |
2197 | int8_t upThres = param_get8(Cmd, 0); | |
2198 | int8_t downThres = param_get8(Cmd, 1); | |
ba1a299c | 2199 | |
d51b2eda | 2200 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); |
952a8bb5 | 2201 | |
d51b2eda MHS |
2202 | int lastValue = GraphBuffer[0]; |
2203 | 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 | 2204 | |
d51b2eda MHS |
2205 | for (int i = 1; i < GraphTraceLen; ++i) { |
2206 | // Apply first threshold to samples heading up | |
2207 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2208 | { | |
2209 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2210 | GraphBuffer[i] = 1; | |
2211 | } | |
2212 | // Apply second threshold to samples heading down | |
2213 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2214 | { | |
2215 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2216 | GraphBuffer[i] = -1; | |
2217 | } | |
2218 | else | |
2219 | { | |
2220 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2221 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2222 | ||
2223 | } | |
2224 | } | |
2225 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2226 | RepaintGraphWindow(); | |
2227 | return 0; | |
2228 | } | |
2229 | ||
7fe9b0b7 | 2230 | int CmdZerocrossings(const char *Cmd) |
2231 | { | |
2232 | // Zero-crossings aren't meaningful unless the signal is zero-mean. | |
2233 | CmdHpf(""); | |
2234 | ||
2235 | int sign = 1; | |
2236 | int zc = 0; | |
2237 | int lastZc = 0; | |
2238 | ||
2239 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2240 | if (GraphBuffer[i] * sign >= 0) { | |
2241 | // No change in sign, reproduce the previous sample count. | |
2242 | zc++; | |
2243 | GraphBuffer[i] = lastZc; | |
2244 | } else { | |
2245 | // Change in sign, reset the sample count. | |
2246 | sign = -sign; | |
2247 | GraphBuffer[i] = lastZc; | |
2248 | if (sign > 0) { | |
2249 | lastZc = zc; | |
2250 | zc = 0; | |
2251 | } | |
2252 | } | |
2253 | } | |
2254 | ||
2255 | RepaintGraphWindow(); | |
2256 | return 0; | |
2257 | } | |
2258 | ||
ba1a299c | 2259 | static command_t CommandTable[] = |
7fe9b0b7 | 2260 | { |
2261 | {"help", CmdHelp, 1, "This help"}, | |
2262 | {"amp", CmdAmp, 1, "Amplify peaks"}, | |
57c69556 | 2263 | {"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"}, |
e770c648 | 2264 | {"askem410xdemod",CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"}, |
2265 | {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"}, | |
1e090a61 | 2266 | {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"}, |
7fe9b0b7 | 2267 | {"autocorr", CmdAutoCorr, 1, "<window length> -- Autocorrelation over window"}, |
1e090a61 | 2268 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"}, |
7fe9b0b7 | 2269 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
2270 | {"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"}, | |
2271 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, | |
2272 | {"dec", CmdDec, 1, "Decimate samples"}, | |
ba1a299c | 2273 | {"detectclock", CmdDetectClockRate, 1, "Detect ASK clock rate"}, |
e888ed8e | 2274 | {"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, |
1e090a61 | 2275 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate graph window as an AWID FSK tag using raw"}, |
2276 | {"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
2277 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK tag using raw"}, | |
2278 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox tag FSK using raw"}, | |
2279 | {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate graph window as a Pyramid FSK tag using raw"}, | |
ec75f5c1 | 2280 | {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate graph window as a Paradox FSK tag using raw"}, |
1e090a61 | 2281 | {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, |
7fe9b0b7 | 2282 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, |
ba1a299c | 2283 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, |
7fe9b0b7 | 2284 | {"hide", CmdHide, 1, "Hide graph window"}, |
2285 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
7fe9b0b7 | 2286 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, |
2287 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
9ec1416a | 2288 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, |
7fe9b0b7 | 2289 | {"mandemod", CmdManchesterDemod, 1, "[i] [clock rate] -- Manchester demodulate binary stream (option 'i' to invert output)"}, |
eb191de6 | 2290 | {"manrawdecode", Cmdmandecoderaw, 1, "Manchester decode binary stream already in graph buffer"}, |
7fe9b0b7 | 2291 | {"manmod", CmdManchesterMod, 1, "[clock rate] -- Manchester modulate a binary stream"}, |
ba1a299c | 2292 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
e770c648 | 2293 | {"nrzdetectclock",CmdDetectNRZClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, |
2294 | {"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"}, | |
7ddb9900 | 2295 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, |
e770c648 | 2296 | {"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, |
04d2721b | 2297 | {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"}, |
e770c648 | 2298 | {"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"}, |
2299 | {"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"}, | |
90d74dc2 | 2300 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"}, |
7fe9b0b7 | 2301 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, |
2302 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
ec75f5c1 | 2303 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, |
2304 | {"shiftgraphzero",CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
dbf444a1 | 2305 | {"threshold", CmdThreshold, 1, "<threshold> -- Maximize/minimize every value in the graph window depending on threshold"}, |
ba1a299c | 2306 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
2307 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
7fe9b0b7 | 2308 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, |
2309 | {NULL, NULL, 0, NULL} | |
2310 | }; | |
2311 | ||
2312 | int CmdData(const char *Cmd) | |
2313 | { | |
2314 | CmdsParse(CommandTable, Cmd); | |
2315 | return 0; | |
2316 | } | |
2317 | ||
2318 | int CmdHelp(const char *Cmd) | |
2319 | { | |
2320 | CmdsHelp(CommandTable); | |
2321 | return 0; | |
2322 | } |