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1 | //----------------------------------------------------------------------------- | |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // Data and Graph commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
11 | #include <stdio.h> | |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
14 | #include <limits.h> | |
15 | #include "proxmark3.h" | |
16 | #include "data.h" | |
17 | #include "ui.h" | |
18 | #include "graph.h" | |
19 | #include "cmdparser.h" | |
20 | #include "util.h" | |
21 | #include "cmdmain.h" | |
22 | #include "cmddata.h" | |
23 | #include "lfdemod.h" | |
24 | #include "usb_cmd.h" | |
25 | #include "crc.h" | |
26 | #include "crc16.h" | |
27 | ||
28 | ||
29 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; | |
30 | uint8_t g_debugMode; | |
31 | size_t DemodBufferLen; | |
32 | static int CmdHelp(const char *Cmd); | |
33 | ||
34 | //set the demod buffer with given array of binary (one bit per byte) | |
35 | //by marshmellow | |
36 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) | |
37 | { | |
38 | if (buff == NULL) | |
39 | return; | |
40 | ||
41 | if ( size >= MAX_DEMOD_BUF_LEN) | |
42 | size = MAX_DEMOD_BUF_LEN; | |
43 | ||
44 | size_t i = 0; | |
45 | for (; i < size; i++){ | |
46 | DemodBuffer[i]=buff[startIdx++]; | |
47 | } | |
48 | DemodBufferLen=size; | |
49 | return; | |
50 | } | |
51 | ||
52 | int CmdSetDebugMode(const char *Cmd) | |
53 | { | |
54 | int demod=0; | |
55 | sscanf(Cmd, "%i", &demod); | |
56 | g_debugMode=(uint8_t)demod; | |
57 | return 1; | |
58 | } | |
59 | ||
60 | int usage_data_printdemodbuf(){ | |
61 | PrintAndLog("Usage: data printdemodbuffer x o <offset>"); | |
62 | PrintAndLog("Options: "); | |
63 | PrintAndLog(" h This help"); | |
64 | PrintAndLog(" x output in hex (omit for binary output)"); | |
65 | PrintAndLog(" o <offset> enter offset in # of bits"); | |
66 | return 0; | |
67 | } | |
68 | ||
69 | //by marshmellow | |
70 | void printDemodBuff(void) | |
71 | { | |
72 | int bitLen = DemodBufferLen; | |
73 | if (bitLen<1) { | |
74 | PrintAndLog("no bits found in demod buffer"); | |
75 | return; | |
76 | } | |
77 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
78 | ||
79 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); | |
80 | PrintAndLog("%s",bin); | |
81 | ||
82 | return; | |
83 | } | |
84 | ||
85 | int CmdPrintDemodBuff(const char *Cmd) | |
86 | { | |
87 | char hex[512]={0x00}; | |
88 | bool hexMode = false; | |
89 | bool errors = false; | |
90 | uint8_t offset = 0; | |
91 | char cmdp = 0; | |
92 | while(param_getchar(Cmd, cmdp) != 0x00) | |
93 | { | |
94 | switch(param_getchar(Cmd, cmdp)) | |
95 | { | |
96 | case 'h': | |
97 | case 'H': | |
98 | return usage_data_printdemodbuf(); | |
99 | case 'x': | |
100 | case 'X': | |
101 | hexMode = true; | |
102 | cmdp++; | |
103 | break; | |
104 | case 'o': | |
105 | case 'O': | |
106 | offset = param_get8(Cmd, cmdp+1); | |
107 | if (!offset) errors = true; | |
108 | cmdp += 2; | |
109 | break; | |
110 | default: | |
111 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
112 | errors = true; | |
113 | break; | |
114 | } | |
115 | if(errors) break; | |
116 | } | |
117 | //Validations | |
118 | if(errors) return usage_data_printdemodbuf(); | |
119 | ||
120 | int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string | |
121 | ||
122 | if (hexMode){ | |
123 | char *buf = (char *) (DemodBuffer + offset); | |
124 | numBits = binarraytohex(hex, buf, numBits); | |
125 | if (numBits==0) return 0; | |
126 | PrintAndLog("DemodBuffer: %s",hex); | |
127 | } else { | |
128 | //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset); | |
129 | char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16); | |
130 | PrintAndLog("DemodBuffer:\n%s",bin); | |
131 | } | |
132 | return 1; | |
133 | } | |
134 | ||
135 | //by marshmellow | |
136 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer | |
137 | int CmdGetBitStream(const char *Cmd) | |
138 | { | |
139 | int i; | |
140 | CmdHpf(Cmd); | |
141 | for (i = 0; i < GraphTraceLen; i++) { | |
142 | if (GraphBuffer[i] >= 1) { | |
143 | GraphBuffer[i] = 1; | |
144 | } else { | |
145 | GraphBuffer[i] = 0; | |
146 | } | |
147 | } | |
148 | RepaintGraphWindow(); | |
149 | return 0; | |
150 | } | |
151 | ||
152 | //by marshmellow | |
153 | //print 64 bit EM410x ID in multiple formats | |
154 | void printEM410x(uint32_t hi, uint64_t id) | |
155 | { | |
156 | if (id || hi){ | |
157 | uint64_t iii=1; | |
158 | uint64_t id2lo=0; | |
159 | uint32_t ii=0; | |
160 | uint32_t i=0; | |
161 | for (ii=5; ii>0;ii--){ | |
162 | for (i=0;i<8;i++){ | |
163 | id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); | |
164 | } | |
165 | } | |
166 | if (hi){ | |
167 | //output 88 bit em id | |
168 | PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id); | |
169 | } else{ | |
170 | //output 40 bit em id | |
171 | PrintAndLog("\nEM TAG ID : %010llX", id); | |
172 | PrintAndLog("Unique TAG ID : %010llX", id2lo); | |
173 | PrintAndLog("\nPossible de-scramble patterns"); | |
174 | PrintAndLog("HoneyWell IdentKey {"); | |
175 | PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); | |
176 | PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF); | |
177 | PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); | |
178 | PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); | |
179 | PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF)); | |
180 | PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF)); | |
181 | PrintAndLog("DEZ 14/IK2 : %014lld",id); | |
182 | PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); | |
183 | PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld", | |
184 | (id2lo & 0xf000000000) >> 36, | |
185 | (id2lo & 0x0f00000000) >> 32, | |
186 | (id2lo & 0x00f0000000) >> 28, | |
187 | (id2lo & 0x000f000000) >> 24, | |
188 | (id2lo & 0x0000f00000) >> 20, | |
189 | (id2lo & 0x00000f0000) >> 16, | |
190 | (id2lo & 0x000000f000) >> 12, | |
191 | (id2lo & 0x0000000f00) >> 8, | |
192 | (id2lo & 0x00000000f0) >> 4, | |
193 | (id2lo & 0x000000000f) | |
194 | ); | |
195 | uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00; | |
196 | PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); | |
197 | PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton); | |
198 | ||
199 | uint32_t p1id = (id & 0xFFFFFF); | |
200 | uint8_t arr[32] = {0x00}; | |
201 | int i =0; | |
202 | int j = 23; | |
203 | for (; i < 24; ++i, --j ){ | |
204 | arr[i] = (p1id >> i) & 1; | |
205 | } | |
206 | ||
207 | uint32_t p1 = 0; | |
208 | ||
209 | p1 |= arr[23] << 21; | |
210 | p1 |= arr[22] << 23; | |
211 | p1 |= arr[21] << 20; | |
212 | p1 |= arr[20] << 22; | |
213 | ||
214 | p1 |= arr[19] << 18; | |
215 | p1 |= arr[18] << 16; | |
216 | p1 |= arr[17] << 19; | |
217 | p1 |= arr[16] << 17; | |
218 | ||
219 | p1 |= arr[15] << 13; | |
220 | p1 |= arr[14] << 15; | |
221 | p1 |= arr[13] << 12; | |
222 | p1 |= arr[12] << 14; | |
223 | ||
224 | p1 |= arr[11] << 6; | |
225 | p1 |= arr[10] << 2; | |
226 | p1 |= arr[9] << 7; | |
227 | p1 |= arr[8] << 1; | |
228 | ||
229 | p1 |= arr[7] << 0; | |
230 | p1 |= arr[6] << 8; | |
231 | p1 |= arr[5] << 11; | |
232 | p1 |= arr[4] << 3; | |
233 | ||
234 | p1 |= arr[3] << 10; | |
235 | p1 |= arr[2] << 4; | |
236 | p1 |= arr[1] << 5; | |
237 | p1 |= arr[0] << 9; | |
238 | PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1); | |
239 | ||
240 | uint16_t sebury1 = id & 0xFFFF; | |
241 | uint8_t sebury2 = (id >> 16) & 0x7F; | |
242 | uint32_t sebury3 = id & 0x7FFFFF; | |
243 | PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3); | |
244 | } | |
245 | } | |
246 | return; | |
247 | } | |
248 | ||
249 | int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo ) | |
250 | { | |
251 | size_t idx = 0; | |
252 | size_t BitLen = DemodBufferLen; | |
253 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
254 | memcpy(BitStream, DemodBuffer, BitLen); | |
255 | if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){ | |
256 | //set GraphBuffer for clone or sim command | |
257 | setDemodBuf(BitStream, BitLen, idx); | |
258 | if (g_debugMode){ | |
259 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
260 | printDemodBuff(); | |
261 | } | |
262 | if (verbose){ | |
263 | PrintAndLog("EM410x pattern found: "); | |
264 | printEM410x(*hi, *lo); | |
265 | } | |
266 | return 1; | |
267 | } | |
268 | return 0; | |
269 | } | |
270 | ||
271 | int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose) | |
272 | { | |
273 | if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0; | |
274 | return AskEm410xDecode(verbose, hi, lo); | |
275 | } | |
276 | ||
277 | //by marshmellow | |
278 | //takes 3 arguments - clock, invert and maxErr as integers | |
279 | //attempts to demodulate ask while decoding manchester | |
280 | //prints binary found and saves in graphbuffer for further commands | |
281 | int CmdAskEM410xDemod(const char *Cmd) | |
282 | { | |
283 | char cmdp = param_getchar(Cmd, 0); | |
284 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
285 | PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); | |
286 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
287 | PrintAndLog(" <invert>, 1 for invert output"); | |
288 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
289 | PrintAndLog(""); | |
290 | PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); | |
291 | PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); | |
292 | PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); | |
293 | PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); | |
294 | 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"); | |
295 | return 0; | |
296 | } | |
297 | uint64_t lo = 0; | |
298 | uint32_t hi = 0; | |
299 | return AskEm410xDemod(Cmd, &hi, &lo, true); | |
300 | } | |
301 | ||
302 | //by marshmellow | |
303 | //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
304 | // (amp may not be needed anymore) | |
305 | //verbose will print results and demoding messages | |
306 | //emSearch will auto search for EM410x format in bitstream | |
307 | //askType switches decode: ask/raw = 0, ask/manchester = 1 | |
308 | int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) | |
309 | { | |
310 | int invert=0; | |
311 | int clk=0; | |
312 | int maxErr=100; | |
313 | int maxLen=0; | |
314 | uint8_t askAmp = 0; | |
315 | char amp = param_getchar(Cmd, 0); | |
316 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
317 | sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &); | |
318 | if (!maxLen) maxLen = 512*64; | |
319 | if (invert != 0 && invert != 1) { | |
320 | PrintAndLog("Invalid argument: %s", Cmd); | |
321 | return 0; | |
322 | } | |
323 | if (clk==1){ | |
324 | invert=1; | |
325 | clk=0; | |
326 | } | |
327 | if (amp == 'a' || amp == 'A') askAmp=1; | |
328 | size_t BitLen = getFromGraphBuf(BitStream); | |
329 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); | |
330 | if (BitLen<255) return 0; | |
331 | if (maxLen<BitLen && maxLen != 0) BitLen = maxLen; | |
332 | ||
333 | int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType); | |
334 | if (errCnt<0 || BitLen<16){ //if fatal error (or -1) | |
335 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); | |
336 | return 0; | |
337 | } | |
338 | if (errCnt>maxErr){ | |
339 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); | |
340 | return 0; | |
341 | } | |
342 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
343 | ||
344 | //output | |
345 | setDemodBuf(BitStream,BitLen,0); | |
346 | if (verbose || g_debugMode){ | |
347 | if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
348 | if (askType) PrintAndLog("ASK/Manchester decoded bitstream:"); | |
349 | else PrintAndLog("ASK/Raw decoded bitstream:"); | |
350 | // Now output the bitstream to the scrollback by line of 16 bits | |
351 | printDemodBuff(); | |
352 | ||
353 | } | |
354 | uint64_t lo = 0; | |
355 | uint32_t hi = 0; | |
356 | if (emSearch){ | |
357 | AskEm410xDecode(true, &hi, &lo); | |
358 | } | |
359 | return 1; | |
360 | } | |
361 | ||
362 | //by marshmellow | |
363 | //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
364 | //attempts to demodulate ask while decoding manchester | |
365 | //prints binary found and saves in graphbuffer for further commands | |
366 | int Cmdaskmandemod(const char *Cmd) | |
367 | { | |
368 | char cmdp = param_getchar(Cmd, 0); | |
369 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { | |
370 | PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]"); | |
371 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
372 | PrintAndLog(" <invert>, 1 to invert output"); | |
373 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
374 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
375 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
376 | PrintAndLog(""); | |
377 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
378 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
379 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
380 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
381 | PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
382 | return 0; | |
383 | } | |
384 | return ASKDemod(Cmd, TRUE, TRUE, 1); | |
385 | } | |
386 | ||
387 | //by marshmellow | |
388 | //manchester decode | |
389 | //stricktly take 10 and 01 and convert to 0 and 1 | |
390 | int Cmdmandecoderaw(const char *Cmd) | |
391 | { | |
392 | int i =0; | |
393 | int errCnt=0; | |
394 | size_t size=0; | |
395 | int invert=0; | |
396 | size_t maxErr = 20; | |
397 | char cmdp = param_getchar(Cmd, 0); | |
398 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { | |
399 | PrintAndLog("Usage: data manrawdecode [invert] [maxErr]"); | |
400 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); | |
401 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
402 | PrintAndLog(" [invert] invert output"); | |
403 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); | |
404 | PrintAndLog(""); | |
405 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
406 | return 0; | |
407 | } | |
408 | if (DemodBufferLen==0) return 0; | |
409 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
410 | int high=0,low=0; | |
411 | for (;i<DemodBufferLen;++i){ | |
412 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
413 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
414 | BitStream[i]=DemodBuffer[i]; | |
415 | } | |
416 | if (high>7 || low <0 ){ | |
417 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); | |
418 | return 0; | |
419 | } | |
420 | ||
421 | sscanf(Cmd, "%i %i", &invert, &maxErr); | |
422 | size=i; | |
423 | errCnt=manrawdecode(BitStream, &size, invert); | |
424 | if (errCnt>=maxErr){ | |
425 | PrintAndLog("Too many errors: %d",errCnt); | |
426 | return 0; | |
427 | } | |
428 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
429 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); | |
430 | if (errCnt==0){ | |
431 | uint64_t id = 0; | |
432 | uint32_t hi = 0; | |
433 | size_t idx=0; | |
434 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
435 | //need to adjust to set bitstream back to manchester encoded data | |
436 | //setDemodBuf(BitStream, size, idx); | |
437 | ||
438 | printEM410x(hi, id); | |
439 | } | |
440 | } | |
441 | return 1; | |
442 | } | |
443 | ||
444 | //by marshmellow | |
445 | //biphase decode | |
446 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
447 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit | |
448 | // and "invert" default = 0 if 1 it will invert output | |
449 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] | |
450 | int CmdBiphaseDecodeRaw(const char *Cmd) | |
451 | { | |
452 | size_t size=0; | |
453 | int offset=0, invert=0, maxErr=20, errCnt=0; | |
454 | char cmdp = param_getchar(Cmd, 0); | |
455 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
456 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); | |
457 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
458 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
459 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
460 | PrintAndLog(""); | |
461 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
462 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
463 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); | |
464 | PrintAndLog(""); | |
465 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
466 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
467 | return 0; | |
468 | } | |
469 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); | |
470 | if (DemodBufferLen==0){ | |
471 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
472 | return 0; | |
473 | } | |
474 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
475 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
476 | size = DemodBufferLen; | |
477 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); | |
478 | if (errCnt<0){ | |
479 | PrintAndLog("Error during decode:%d", errCnt); | |
480 | return 0; | |
481 | } | |
482 | if (errCnt>maxErr){ | |
483 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); | |
484 | return 0; | |
485 | } | |
486 | ||
487 | if (errCnt>0){ | |
488 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); | |
489 | } | |
490 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
491 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); | |
492 | ||
493 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
494 | return 1; | |
495 | } | |
496 | ||
497 | //by marshmellow | |
498 | // - ASK Demod then Biphase decode GraphBuffer samples | |
499 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
500 | { | |
501 | //ask raw demod GraphBuffer first | |
502 | int offset=0, clk=0, invert=0, maxErr=0, ans=0; | |
503 | ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
504 | if (ans>0) | |
505 | ans = ASKDemod(Cmd+2, FALSE, FALSE, 0); | |
506 | else | |
507 | ans = ASKDemod(Cmd, FALSE, FALSE, 0); | |
508 | if (!ans) { | |
509 | if (g_debugMode || verbose) PrintAndLog("Error AskDemod: %d", ans); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | //attempt to Biphase decode DemodBuffer | |
514 | size_t size = DemodBufferLen; | |
515 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
516 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
517 | int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
518 | if (errCnt < 0){ | |
519 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
520 | return 0; | |
521 | } | |
522 | if (errCnt > maxErr) { | |
523 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
524 | return 0; | |
525 | } | |
526 | //success set DemodBuffer and return | |
527 | setDemodBuf(BitStream, size, 0); | |
528 | if (g_debugMode || verbose){ | |
529 | PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); | |
530 | printDemodBuff(); | |
531 | } | |
532 | return 1; | |
533 | } | |
534 | //by marshmellow - see ASKbiphaseDemod | |
535 | int Cmdaskbiphdemod(const char *Cmd) | |
536 | { | |
537 | char cmdp = param_getchar(Cmd, 0); | |
538 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { | |
539 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>"); | |
540 | PrintAndLog(" [offset], offset to begin biphase, default=0"); | |
541 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
542 | PrintAndLog(" <invert>, 1 to invert output"); | |
543 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
544 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
545 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
546 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
547 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
548 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
549 | PrintAndLog(""); | |
550 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
551 | PrintAndLog(""); | |
552 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); | |
553 | PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified"); | |
554 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
555 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
556 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
557 | PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
558 | PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
559 | return 0; | |
560 | } | |
561 | return ASKbiphaseDemod(Cmd, TRUE); | |
562 | } | |
563 | ||
564 | //by marshmellow | |
565 | //attempts to demodulate and identify a G_Prox_II verex/chubb card | |
566 | //WARNING: if it fails during some points it will destroy the DemodBuffer data | |
567 | // but will leave the GraphBuffer intact. | |
568 | //if successful it will push askraw data back to demod buffer ready for emulation | |
569 | int CmdG_Prox_II_Demod(const char *Cmd) | |
570 | { | |
571 | if (!ASKbiphaseDemod(Cmd, FALSE)){ | |
572 | if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try"); | |
573 | return 0; | |
574 | } | |
575 | size_t size = DemodBufferLen; | |
576 | //call lfdemod.c demod for gProxII | |
577 | int ans = gProxII_Demod(DemodBuffer, &size); | |
578 | if (ans < 0){ | |
579 | if (g_debugMode) PrintAndLog("Error gProxII_Demod"); | |
580 | return 0; | |
581 | } | |
582 | //got a good demod | |
583 | uint32_t ByteStream[65] = {0x00}; | |
584 | uint8_t xorKey=0; | |
585 | uint8_t keyCnt=0; | |
586 | uint8_t bitCnt=0; | |
587 | uint8_t ByteCnt=0; | |
588 | size_t startIdx = ans + 6; //start after preamble | |
589 | for (size_t idx = 0; idx<size-6; idx++){ | |
590 | if ((idx+1) % 5 == 0){ | |
591 | //spacer bit - should be 0 | |
592 | if (DemodBuffer[startIdx+idx] != 0) { | |
593 | if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx); | |
594 | return 0; | |
595 | } | |
596 | continue; | |
597 | } | |
598 | if (keyCnt<8){ //lsb first | |
599 | xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt); | |
600 | keyCnt++; | |
601 | if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey); | |
602 | continue; | |
603 | } | |
604 | //lsb first | |
605 | ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt); | |
606 | bitCnt++; | |
607 | if (bitCnt % 8 == 0){ | |
608 | if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]); | |
609 | bitCnt=0; | |
610 | ByteCnt++; | |
611 | } | |
612 | } | |
613 | for (uint8_t i = 0; i < ByteCnt; i++){ | |
614 | ByteStream[i] ^= xorKey; //xor | |
615 | if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]); | |
616 | } | |
617 | //now ByteStream contains 64 bytes of decrypted raw tag data | |
618 | // | |
619 | uint8_t fmtLen = ByteStream[0]>>2; | |
620 | uint32_t FC = 0; | |
621 | uint32_t Card = 0; | |
622 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); | |
623 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
624 | uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); | |
625 | ||
626 | if (fmtLen==36){ | |
627 | FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); | |
628 | Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); | |
629 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
630 | } else if(fmtLen==26){ | |
631 | FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); | |
632 | Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); | |
633 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
634 | } else { | |
635 | PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen); | |
636 | } | |
637 | PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); | |
638 | setDemodBuf(DemodBuffer+ans, 96, 0); | |
639 | return 1; | |
640 | } | |
641 | ||
642 | //by marshmellow - see ASKDemod | |
643 | int Cmdaskrawdemod(const char *Cmd) | |
644 | { | |
645 | char cmdp = param_getchar(Cmd, 0); | |
646 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { | |
647 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]"); | |
648 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
649 | PrintAndLog(" <invert>, 1 to invert output"); | |
650 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
651 | PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)"); | |
652 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
653 | PrintAndLog(""); | |
654 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); | |
655 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
656 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
657 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
658 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
659 | PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
660 | PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
661 | return 0; | |
662 | } | |
663 | return ASKDemod(Cmd, TRUE, FALSE, 0); | |
664 | } | |
665 | ||
666 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) | |
667 | { | |
668 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; | |
669 | size_t Correlation = 0; | |
670 | int maxSum = 0; | |
671 | int lastMax = 0; | |
672 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
673 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
674 | int sum = 0; | |
675 | for (int j = 0; j < window; ++j) { | |
676 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
677 | } | |
678 | CorrelBuffer[i] = sum; | |
679 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
680 | //another max | |
681 | Correlation = i-lastMax; | |
682 | lastMax = i; | |
683 | if (sum > maxSum) maxSum = sum; | |
684 | } else if (sum > maxSum){ | |
685 | maxSum=sum; | |
686 | lastMax = i; | |
687 | } | |
688 | } | |
689 | if (Correlation==0){ | |
690 | //try again with wider margin | |
691 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
692 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
693 | //another max | |
694 | Correlation = i-lastMax; | |
695 | lastMax = i; | |
696 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
697 | } | |
698 | } | |
699 | } | |
700 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
701 | ||
702 | if (SaveGrph){ | |
703 | GraphTraceLen = GraphTraceLen - window; | |
704 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
705 | RepaintGraphWindow(); | |
706 | } | |
707 | return Correlation; | |
708 | } | |
709 | ||
710 | int usage_data_autocorr(void) | |
711 | { | |
712 | //print help | |
713 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
714 | PrintAndLog("Options: "); | |
715 | PrintAndLog(" h This help"); | |
716 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
717 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
718 | return 0; | |
719 | } | |
720 | ||
721 | int CmdAutoCorr(const char *Cmd) | |
722 | { | |
723 | char cmdp = param_getchar(Cmd, 0); | |
724 | if (cmdp == 'h' || cmdp == 'H') | |
725 | return usage_data_autocorr(); | |
726 | int window = 4000; //set default | |
727 | char grph=0; | |
728 | bool updateGrph = FALSE; | |
729 | sscanf(Cmd, "%i %c", &window, &grph); | |
730 | ||
731 | if (window >= GraphTraceLen) { | |
732 | PrintAndLog("window must be smaller than trace (%d samples)", | |
733 | GraphTraceLen); | |
734 | return 0; | |
735 | } | |
736 | if (grph == 'g') updateGrph=TRUE; | |
737 | return AutoCorrelate(window, updateGrph, TRUE); | |
738 | } | |
739 | ||
740 | int CmdBitsamples(const char *Cmd) | |
741 | { | |
742 | int cnt = 0; | |
743 | uint8_t got[12288]; | |
744 | ||
745 | GetFromBigBuf(got,sizeof(got),0); | |
746 | WaitForResponse(CMD_ACK,NULL); | |
747 | ||
748 | for (int j = 0; j < sizeof(got); j++) { | |
749 | for (int k = 0; k < 8; k++) { | |
750 | if(got[j] & (1 << (7 - k))) { | |
751 | GraphBuffer[cnt++] = 1; | |
752 | } else { | |
753 | GraphBuffer[cnt++] = 0; | |
754 | } | |
755 | } | |
756 | } | |
757 | GraphTraceLen = cnt; | |
758 | RepaintGraphWindow(); | |
759 | return 0; | |
760 | } | |
761 | ||
762 | int CmdBuffClear(const char *Cmd) | |
763 | { | |
764 | UsbCommand c = {CMD_BUFF_CLEAR}; | |
765 | SendCommand(&c); | |
766 | ClearGraph(true); | |
767 | return 0; | |
768 | } | |
769 | ||
770 | int CmdDec(const char *Cmd) | |
771 | { | |
772 | for (int i = 0; i < (GraphTraceLen / 2); ++i) | |
773 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
774 | GraphTraceLen /= 2; | |
775 | PrintAndLog("decimated by 2"); | |
776 | RepaintGraphWindow(); | |
777 | return 0; | |
778 | } | |
779 | /** | |
780 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
781 | * name until someone does an actual interpolation command, not just | |
782 | * blindly repeating samples | |
783 | * @param Cmd | |
784 | * @return | |
785 | */ | |
786 | int CmdUndec(const char *Cmd) | |
787 | { | |
788 | if(param_getchar(Cmd, 0) == 'h') | |
789 | { | |
790 | PrintAndLog("Usage: data undec [factor]"); | |
791 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
792 | PrintAndLog("Options: "); | |
793 | PrintAndLog(" h This help"); | |
794 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
795 | PrintAndLog("Example: 'data undec 3'"); | |
796 | return 0; | |
797 | } | |
798 | ||
799 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
800 | //We have memory, don't we? | |
801 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
802 | uint32_t g_index = 0 ,s_index = 0; | |
803 | while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) | |
804 | { | |
805 | int count = 0; | |
806 | for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) | |
807 | swap[s_index+count] = GraphBuffer[g_index]; | |
808 | s_index+=count; | |
809 | } | |
810 | ||
811 | memcpy(GraphBuffer,swap, s_index * sizeof(int)); | |
812 | GraphTraceLen = s_index; | |
813 | RepaintGraphWindow(); | |
814 | return 0; | |
815 | } | |
816 | ||
817 | //by marshmellow | |
818 | //shift graph zero up or down based on input + or - | |
819 | int CmdGraphShiftZero(const char *Cmd) | |
820 | { | |
821 | ||
822 | int shift=0; | |
823 | //set options from parameters entered with the command | |
824 | sscanf(Cmd, "%i", &shift); | |
825 | int shiftedVal=0; | |
826 | for(int i = 0; i<GraphTraceLen; i++){ | |
827 | shiftedVal=GraphBuffer[i]+shift; | |
828 | if (shiftedVal>127) | |
829 | shiftedVal=127; | |
830 | else if (shiftedVal<-127) | |
831 | shiftedVal=-127; | |
832 | GraphBuffer[i]= shiftedVal; | |
833 | } | |
834 | CmdNorm(""); | |
835 | return 0; | |
836 | } | |
837 | ||
838 | //by marshmellow | |
839 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
840 | //similar to dirtheshold, threshold commands | |
841 | //takes a threshold length which is the measured length between two samples then determines an edge | |
842 | int CmdAskEdgeDetect(const char *Cmd) | |
843 | { | |
844 | int thresLen = 25; | |
845 | sscanf(Cmd, "%i", &thresLen); | |
846 | ||
847 | for(int i = 1; i<GraphTraceLen; i++){ | |
848 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
849 | GraphBuffer[i-1] = 127; | |
850 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down | |
851 | GraphBuffer[i-1] = -127; | |
852 | } | |
853 | RepaintGraphWindow(); | |
854 | return 0; | |
855 | } | |
856 | ||
857 | /* Print our clock rate */ | |
858 | // uses data from graphbuffer | |
859 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. | |
860 | int CmdDetectClockRate(const char *Cmd) | |
861 | { | |
862 | char cmdp = param_getchar(Cmd, 0); | |
863 | if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { | |
864 | PrintAndLog("Usage: data detectclock [modulation] <clock>"); | |
865 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); | |
866 | PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)"); | |
867 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); | |
868 | PrintAndLog(""); | |
869 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
870 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
871 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
872 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
873 | } | |
874 | int ans=0; | |
875 | if (cmdp == 'a'){ | |
876 | ans = GetAskClock(Cmd+1, true, false); | |
877 | } else if (cmdp == 'f'){ | |
878 | ans = GetFskClock("", true, false); | |
879 | } else if (cmdp == 'n'){ | |
880 | ans = GetNrzClock("", true, false); | |
881 | } else if (cmdp == 'p'){ | |
882 | ans = GetPskClock("", true, false); | |
883 | } else { | |
884 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
885 | } | |
886 | return ans; | |
887 | } | |
888 | ||
889 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) | |
890 | { | |
891 | char *fskType; | |
892 | if (fchigh==10 && fclow==8){ | |
893 | if (invert) //fsk2a | |
894 | fskType = "FSK2a"; | |
895 | else //fsk2 | |
896 | fskType = "FSK2"; | |
897 | } else if (fchigh == 8 && fclow == 5) { | |
898 | if (invert) | |
899 | fskType = "FSK1"; | |
900 | else | |
901 | fskType = "FSK1a"; | |
902 | } else { | |
903 | fskType = "FSK??"; | |
904 | } | |
905 | return fskType; | |
906 | } | |
907 | ||
908 | //by marshmellow | |
909 | //fsk raw demod and print binary | |
910 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
911 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
912 | int FSKrawDemod(const char *Cmd, bool verbose) | |
913 | { | |
914 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
915 | //set defaults | |
916 | int rfLen = 0; | |
917 | int invert = 0; | |
918 | int fchigh = 0; | |
919 | int fclow = 0; | |
920 | ||
921 | //set options from parameters entered with the command | |
922 | sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); | |
923 | ||
924 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { | |
925 | if (rfLen==1){ | |
926 | invert = 1; //if invert option only is used | |
927 | rfLen = 0; | |
928 | } | |
929 | } | |
930 | ||
931 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
932 | size_t BitLen = getFromGraphBuf(BitStream); | |
933 | if (BitLen==0) return 0; | |
934 | //get field clock lengths | |
935 | uint16_t fcs=0; | |
936 | if (fchigh==0 || fclow == 0){ | |
937 | fcs = countFC(BitStream, BitLen, 1); | |
938 | if (fcs==0){ | |
939 | fchigh=10; | |
940 | fclow=8; | |
941 | }else{ | |
942 | fchigh = (fcs >> 8) & 0xFF; | |
943 | fclow = fcs & 0xFF; | |
944 | } | |
945 | } | |
946 | //get bit clock length | |
947 | if (rfLen==0){ | |
948 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
949 | if (rfLen == 0) rfLen = 50; | |
950 | } | |
951 | int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); | |
952 | if (size>0){ | |
953 | setDemodBuf(BitStream,size,0); | |
954 | ||
955 | // Now output the bitstream to the scrollback by line of 16 bits | |
956 | if (verbose || g_debugMode) { | |
957 | PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow); | |
958 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); | |
959 | printDemodBuff(); | |
960 | } | |
961 | ||
962 | return 1; | |
963 | } else{ | |
964 | if (g_debugMode) PrintAndLog("no FSK data found"); | |
965 | } | |
966 | return 0; | |
967 | } | |
968 | ||
969 | //by marshmellow | |
970 | //fsk raw demod and print binary | |
971 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
972 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
973 | int CmdFSKrawdemod(const char *Cmd) | |
974 | { | |
975 | char cmdp = param_getchar(Cmd, 0); | |
976 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
977 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); | |
978 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
979 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
980 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
981 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
982 | PrintAndLog(""); | |
983 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
984 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
985 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
986 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
987 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
988 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
989 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
990 | return 0; | |
991 | } | |
992 | return FSKrawDemod(Cmd, TRUE); | |
993 | } | |
994 | ||
995 | //by marshmellow (based on existing demod + holiman's refactor) | |
996 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
997 | //print full HID Prox ID and some bit format details if found | |
998 | int CmdFSKdemodHID(const char *Cmd) | |
999 | { | |
1000 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1001 | uint32_t hi2=0, hi=0, lo=0; | |
1002 | ||
1003 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1004 | size_t BitLen = getFromGraphBuf(BitStream); | |
1005 | if (BitLen==0) return 0; | |
1006 | //get binary from fsk wave | |
1007 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1008 | if (idx<0){ | |
1009 | if (g_debugMode){ | |
1010 | if (idx==-1){ | |
1011 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1012 | } else if (idx == -2) { | |
1013 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1014 | } else if (idx == -3) { | |
1015 | PrintAndLog("DEBUG: Preamble not found"); | |
1016 | } else if (idx == -4) { | |
1017 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
1018 | } else { | |
1019 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1020 | } | |
1021 | } | |
1022 | return 0; | |
1023 | } | |
1024 | if (hi2==0 && hi==0 && lo==0) { | |
1025 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
1026 | return 0; | |
1027 | } | |
1028 | if (hi2 != 0){ //extra large HID tags | |
1029 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", | |
1030 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); | |
1031 | } | |
1032 | else { //standard HID tags <38 bits | |
1033 | uint8_t fmtLen = 0; | |
1034 | uint32_t fc = 0; | |
1035 | uint32_t cardnum = 0; | |
1036 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
1037 | uint32_t lo2=0; | |
1038 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit | |
1039 | uint8_t idx3 = 1; | |
1040 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
1041 | lo2=lo2>>1; | |
1042 | idx3++; | |
1043 | } | |
1044 | fmtLen =idx3+19; | |
1045 | fc =0; | |
1046 | cardnum=0; | |
1047 | if(fmtLen==26){ | |
1048 | cardnum = (lo>>1)&0xFFFF; | |
1049 | fc = (lo>>17)&0xFF; | |
1050 | } | |
1051 | if(fmtLen==34){ | |
1052 | cardnum = (lo>>1)&0xFFFF; | |
1053 | fc= ((hi&1)<<15)|(lo>>17); | |
1054 | } | |
1055 | if(fmtLen==35){ | |
1056 | cardnum = (lo>>1)&0xFFFFF; | |
1057 | fc = ((hi&1)<<11)|(lo>>21); | |
1058 | } | |
1059 | } | |
1060 | else { //if bit 38 is not set then 37 bit format is used | |
1061 | fmtLen = 37; | |
1062 | fc = 0; | |
1063 | cardnum = 0; | |
1064 | if(fmtLen == 37){ | |
1065 | cardnum = (lo>>1)&0x7FFFF; | |
1066 | fc = ((hi&0xF)<<12)|(lo>>20); | |
1067 | } | |
1068 | } | |
1069 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
1070 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, | |
1071 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); | |
1072 | } | |
1073 | setDemodBuf(BitStream,BitLen,idx); | |
1074 | if (g_debugMode){ | |
1075 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
1076 | printDemodBuff(); | |
1077 | } | |
1078 | return 1; | |
1079 | } | |
1080 | ||
1081 | //by marshmellow | |
1082 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
1083 | //print full Paradox Prox ID and some bit format details if found | |
1084 | int CmdFSKdemodParadox(const char *Cmd) | |
1085 | { | |
1086 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1087 | uint32_t hi2=0, hi=0, lo=0; | |
1088 | ||
1089 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1090 | size_t BitLen = getFromGraphBuf(BitStream); | |
1091 | if (BitLen==0) return 0; | |
1092 | //get binary from fsk wave | |
1093 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1094 | if (idx<0){ | |
1095 | if (g_debugMode){ | |
1096 | if (idx==-1){ | |
1097 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1098 | } else if (idx == -2) { | |
1099 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1100 | } else if (idx == -3) { | |
1101 | PrintAndLog("DEBUG: Preamble not found"); | |
1102 | } else if (idx == -4) { | |
1103 | PrintAndLog("DEBUG: Error in Manchester data"); | |
1104 | } else { | |
1105 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1106 | } | |
1107 | } | |
1108 | return 0; | |
1109 | } | |
1110 | if (hi2==0 && hi==0 && lo==0){ | |
1111 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
1112 | return 0; | |
1113 | } | |
1114 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
1115 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
1116 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1117 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1118 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1119 | ||
1120 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", | |
1121 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
1122 | setDemodBuf(BitStream,BitLen,idx); | |
1123 | if (g_debugMode){ | |
1124 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
1125 | printDemodBuff(); | |
1126 | } | |
1127 | return 1; | |
1128 | } | |
1129 | ||
1130 | //by marshmellow | |
1131 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 | |
1132 | //print ioprox ID and some format details | |
1133 | int CmdFSKdemodIO(const char *Cmd) | |
1134 | { | |
1135 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1136 | //set defaults | |
1137 | int idx=0; | |
1138 | //something in graphbuffer? | |
1139 | if (GraphTraceLen < 65) { | |
1140 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
1141 | return 0; | |
1142 | } | |
1143 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1144 | size_t BitLen = getFromGraphBuf(BitStream); | |
1145 | if (BitLen==0) return 0; | |
1146 | ||
1147 | //get binary from fsk wave | |
1148 | idx = IOdemodFSK(BitStream,BitLen); | |
1149 | if (idx<0){ | |
1150 | if (g_debugMode){ | |
1151 | if (idx==-1){ | |
1152 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1153 | } else if (idx == -2) { | |
1154 | PrintAndLog("DEBUG: not enough samples"); | |
1155 | } else if (idx == -3) { | |
1156 | PrintAndLog("DEBUG: error during fskdemod"); | |
1157 | } else if (idx == -4) { | |
1158 | PrintAndLog("DEBUG: Preamble not found"); | |
1159 | } else if (idx == -5) { | |
1160 | PrintAndLog("DEBUG: Separator bits not found"); | |
1161 | } else { | |
1162 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1163 | } | |
1164 | } | |
1165 | return 0; | |
1166 | } | |
1167 | if (idx==0){ | |
1168 | if (g_debugMode){ | |
1169 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); | |
1170 | if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); | |
1171 | } | |
1172 | return 0; | |
1173 | } | |
1174 | //Index map | |
1175 | //0 10 20 30 40 50 60 | |
1176 | //| | | | | | | | |
1177 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
1178 | //----------------------------------------------------------------------------- | |
1179 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
1180 | // | |
1181 | //XSF(version)facility:codeone+codetwo (raw) | |
1182 | //Handle the data | |
1183 | if (idx+64>BitLen) { | |
1184 | if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen); | |
1185 | return 0; | |
1186 | } | |
1187 | 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]); | |
1188 | 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]); | |
1189 | 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]); | |
1190 | 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]); | |
1191 | 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]); | |
1192 | 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]); | |
1193 | 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]); | |
1194 | ||
1195 | uint32_t code = bytebits_to_byte(BitStream+idx,32); | |
1196 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); | |
1197 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 | |
1198 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
1199 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 | |
1200 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
1201 | uint16_t calccrc = 0; | |
1202 | ||
1203 | for (uint8_t i=1; i<6; ++i){ | |
1204 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
1205 | } | |
1206 | calccrc &= 0xff; | |
1207 | calccrc = 0xff - calccrc; | |
1208 | ||
1209 | char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; | |
1210 | ||
1211 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
1212 | setDemodBuf(BitStream,64,idx); | |
1213 | if (g_debugMode){ | |
1214 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
1215 | printDemodBuff(); | |
1216 | } | |
1217 | return 1; | |
1218 | } | |
1219 | ||
1220 | //by marshmellow | |
1221 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1222 | //print full AWID Prox ID and some bit format details if found | |
1223 | int CmdFSKdemodAWID(const char *Cmd) | |
1224 | { | |
1225 | ||
1226 | //int verbose=1; | |
1227 | //sscanf(Cmd, "%i", &verbose); | |
1228 | ||
1229 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1230 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1231 | size_t size = getFromGraphBuf(BitStream); | |
1232 | if (size==0) return 0; | |
1233 | ||
1234 | //get binary from fsk wave | |
1235 | int idx = AWIDdemodFSK(BitStream, &size); | |
1236 | if (idx<=0){ | |
1237 | if (g_debugMode==1){ | |
1238 | if (idx == -1) | |
1239 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1240 | else if (idx == -2) | |
1241 | PrintAndLog("DEBUG: Error - only noise found"); | |
1242 | else if (idx == -3) | |
1243 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1244 | else if (idx == -4) | |
1245 | PrintAndLog("DEBUG: Error - AWID preamble not found"); | |
1246 | else if (idx == -5) | |
1247 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1248 | else | |
1249 | PrintAndLog("DEBUG: Error %d",idx); | |
1250 | } | |
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | // Index map | |
1255 | // 0 10 20 30 40 50 60 | |
1256 | // | | | | | | | | |
1257 | // 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 | |
1258 | // ----------------------------------------------------------------------------- | |
1259 | // 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 | |
1260 | // 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 | |
1261 | // |---26 bit---| |-----117----||-------------142-------------| | |
1262 | // b = format bit len, o = odd parity of last 3 bits | |
1263 | // f = facility code, c = card number | |
1264 | // w = wiegand parity | |
1265 | // (26 bit format shown) | |
1266 | ||
1267 | //get raw ID before removing parities | |
1268 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1269 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1270 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1271 | setDemodBuf(BitStream,96,idx); | |
1272 | ||
1273 | size = removeParity(BitStream, idx+8, 4, 1, 88); | |
1274 | if (size != 66){ | |
1275 | if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); | |
1276 | return 0; | |
1277 | } | |
1278 | // ok valid card found! | |
1279 | ||
1280 | // Index map | |
1281 | // 0 10 20 30 40 50 60 | |
1282 | // | | | | | | | | |
1283 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1284 | // ----------------------------------------------------------------------------- | |
1285 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1286 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1287 | // |26 bit| |-117--| |-----142------| | |
1288 | // b = format bit len, o = odd parity of last 3 bits | |
1289 | // f = facility code, c = card number | |
1290 | // w = wiegand parity | |
1291 | // (26 bit format shown) | |
1292 | ||
1293 | uint32_t fc = 0; | |
1294 | uint32_t cardnum = 0; | |
1295 | uint32_t code1 = 0; | |
1296 | uint32_t code2 = 0; | |
1297 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1298 | if (fmtLen==26){ | |
1299 | fc = bytebits_to_byte(BitStream+9, 8); | |
1300 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1301 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1302 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); | |
1303 | } else { | |
1304 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1305 | if (fmtLen>32){ | |
1306 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1307 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
1308 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); | |
1309 | } else{ | |
1310 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1311 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); | |
1312 | } | |
1313 | } | |
1314 | if (g_debugMode){ | |
1315 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1316 | printDemodBuff(); | |
1317 | } | |
1318 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands | |
1319 | return 1; | |
1320 | } | |
1321 | ||
1322 | //by marshmellow | |
1323 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1324 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1325 | int CmdFSKdemodPyramid(const char *Cmd) | |
1326 | { | |
1327 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1328 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1329 | size_t size = getFromGraphBuf(BitStream); | |
1330 | if (size==0) return 0; | |
1331 | ||
1332 | //get binary from fsk wave | |
1333 | int idx = PyramiddemodFSK(BitStream, &size); | |
1334 | if (idx < 0){ | |
1335 | if (g_debugMode==1){ | |
1336 | if (idx == -5) | |
1337 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1338 | else if (idx == -1) | |
1339 | PrintAndLog("DEBUG: Error - only noise found"); | |
1340 | else if (idx == -2) | |
1341 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1342 | else if (idx == -3) | |
1343 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1344 | else if (idx == -4) | |
1345 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); | |
1346 | else | |
1347 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1348 | } | |
1349 | return 0; | |
1350 | } | |
1351 | // Index map | |
1352 | // 0 10 20 30 40 50 60 | |
1353 | // | | | | | | | | |
1354 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1355 | // ----------------------------------------------------------------------------- | |
1356 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1357 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1358 | ||
1359 | // 64 70 80 90 100 110 120 | |
1360 | // | | | | | | | | |
1361 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1362 | // ----------------------------------------------------------------------------- | |
1363 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1364 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1365 | // |---115---||---------71---------| | |
1366 | // s = format start bit, o = odd parity of last 7 bits | |
1367 | // f = facility code, c = card number | |
1368 | // w = wiegand parity, x = extra space for other formats | |
1369 | // p = unknown checksum | |
1370 | // (26 bit format shown) | |
1371 | ||
1372 | //get bytes for checksum calc | |
1373 | uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); | |
1374 | uint8_t csBuff[14] = {0x00}; | |
1375 | for (uint8_t i = 0; i < 13; i++){ | |
1376 | csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); | |
1377 | } | |
1378 | //check checksum calc | |
1379 | //checksum calc thanks to ICEMAN!! | |
1380 | uint32_t checkCS = CRC8Maxim(csBuff,13); | |
1381 | ||
1382 | //get raw ID before removing parities | |
1383 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1384 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1385 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1386 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
1387 | setDemodBuf(BitStream,128,idx); | |
1388 | ||
1389 | size = removeParity(BitStream, idx+8, 8, 1, 120); | |
1390 | if (size != 105){ | |
1391 | if (g_debugMode==1) | |
1392 | PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); | |
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | // ok valid card found! | |
1397 | ||
1398 | // Index map | |
1399 | // 0 10 20 30 40 50 60 70 | |
1400 | // | | | | | | | | | |
1401 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1402 | // ----------------------------------------------------------------------- | |
1403 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1404 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1405 | ||
1406 | // 71 80 90 100 | |
1407 | // | | | | | |
1408 | // 1 2 34567890 1234567890123456 7 8901234 | |
1409 | // --------------------------------------- | |
1410 | // 1 1 01110011 0000000001000110 0 1001010 | |
1411 | // s w ffffffff cccccccccccccccc w ppppppp | |
1412 | // |--115-| |------71------| | |
1413 | // s = format start bit, o = odd parity of last 7 bits | |
1414 | // f = facility code, c = card number | |
1415 | // w = wiegand parity, x = extra space for other formats | |
1416 | // p = unknown checksum | |
1417 | // (26 bit format shown) | |
1418 | ||
1419 | //find start bit to get fmtLen | |
1420 | int j; | |
1421 | for (j=0; j<size; j++){ | |
1422 | if(BitStream[j]) break; | |
1423 | } | |
1424 | uint8_t fmtLen = size-j-8; | |
1425 | uint32_t fc = 0; | |
1426 | uint32_t cardnum = 0; | |
1427 | uint32_t code1 = 0; | |
1428 | //uint32_t code2 = 0; | |
1429 | if (fmtLen==26){ | |
1430 | fc = bytebits_to_byte(BitStream+73, 8); | |
1431 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1432 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
1433 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo); | |
1434 | } else if (fmtLen==45){ | |
1435 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1436 | fc = bytebits_to_byte(BitStream+53, 10); | |
1437 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
1438 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1439 | } else { | |
1440 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1441 | if (fmtLen>32){ | |
1442 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1443 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
1444 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1445 | } else{ | |
1446 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
1447 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1448 | } | |
1449 | } | |
1450 | if (checksum == checkCS) | |
1451 | PrintAndLog("Checksum %02x passed", checksum); | |
1452 | else | |
1453 | PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); | |
1454 | ||
1455 | if (g_debugMode){ | |
1456 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1457 | printDemodBuff(); | |
1458 | } | |
1459 | return 1; | |
1460 | } | |
1461 | ||
1462 | // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits) | |
1463 | // 8 databits + 1 parity (1) | |
1464 | // CIITT 16 chksum | |
1465 | // NATIONAL CODE, ICAR database | |
1466 | // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf | |
1467 | // FLAG (animal/non-animal) | |
1468 | /* | |
1469 | 38 IDbits | |
1470 | 10 country code | |
1471 | 1 extra app bit | |
1472 | 14 reserved bits | |
1473 | 1 animal bit | |
1474 | 16 ccitt CRC chksum over 64bit ID CODE. | |
1475 | 24 appli bits. | |
1476 | ||
1477 | -- sample: 985121004515220 [ 37FF65B88EF94 ] | |
1478 | */ | |
1479 | int CmdFDXBdemodBI(const char *Cmd){ | |
1480 | ||
1481 | int invert = 1; | |
1482 | int clk = 32; | |
1483 | int errCnt = 0; | |
1484 | int maxErr = 0; | |
1485 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
1486 | size_t size = getFromGraphBuf(BitStream); | |
1487 | ||
1488 | errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); | |
1489 | if ( errCnt < 0 || errCnt > maxErr ) { | |
1490 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: 32", errCnt); | |
1491 | return 0; | |
1492 | } | |
1493 | ||
1494 | errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1); | |
1495 | if (errCnt < 0 || errCnt > maxErr ) { | |
1496 | if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
1497 | return 0; | |
1498 | } | |
1499 | ||
1500 | int preambleIndex = FDXBdemodBI(BitStream, &size); | |
1501 | if (preambleIndex < 0){ | |
1502 | if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex); | |
1503 | return 0; | |
1504 | } | |
1505 | ||
1506 | setDemodBuf(BitStream, 128, preambleIndex); | |
1507 | ||
1508 | size = removeParity(BitStream, preambleIndex + 11, 9, 2, 128-11); | |
1509 | if ( size <= 103 ) { | |
1510 | if (g_debugMode) PrintAndLog("Error removeParity:: %d", size); | |
1511 | return 0; | |
1512 | } | |
1513 | if (g_debugMode) { | |
1514 | char *bin = sprint_bin_break(BitStream,size,16); | |
1515 | PrintAndLog("DEBUG BinStream:\n%s",bin); | |
1516 | } | |
1517 | PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:"); | |
1518 | if (g_debugMode) PrintAndLog("startmarker %d; Size %d", preambleIndex, size); | |
1519 | ||
1520 | //got a good demod | |
1521 | ||
1522 | //marshmellows | |
1523 | uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32); | |
1524 | uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10); | |
1525 | uint8_t dataBlockBit = BitStream[48]; | |
1526 | uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14); | |
1527 | uint8_t animalBit = BitStream[63]; | |
1528 | ||
1529 | uint16_t crc16 = bytebits_to_byteLSBF(BitStream+64,16); | |
1530 | uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24); | |
1531 | ||
1532 | uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream+32,32) << 32) | bytebits_to_byte(BitStream,32); | |
1533 | uint8_t raw[8]; | |
1534 | num_to_bytes(rawid, 8, raw); | |
1535 | PrintAndLog("%s", sprint_hex(raw,8)); | |
1536 | uint16_t crcCalc = crc16_ccitt_rev( raw ,8); | |
1537 | ||
1538 | PrintAndLog("Animal ID: %u-%012llu", countryCode, NationalCode); | |
1539 | PrintAndLog("National Code: %012llu", NationalCode); | |
1540 | PrintAndLog("CountryCode: %u", countryCode); | |
1541 | PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False"); | |
1542 | PrintAndLog("reserved Code: %u", reservedCode); | |
1543 | PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False"); | |
1544 | PrintAndLog("CRC: 0x%02X", crc16); | |
1545 | PrintAndLog("CRC : %X == %X %s", crc16, crcCalc, ( crcCalc == crc16 )?"ok":"!" ); | |
1546 | PrintAndLog("Extended: 0x%X", extended); | |
1547 | ||
1548 | /* | |
1549 | //uint16_t crcCalc = crc16_ccitt( ByteStream, 8); | |
1550 | PrintAndLog("Application ID: %04X", applicationid); | |
1551 | */ | |
1552 | return 1; | |
1553 | ||
1554 | } | |
1555 | ||
1556 | ||
1557 | //by marshmellow | |
1558 | //attempt to psk1 demod graph buffer | |
1559 | int PSKDemod(const char *Cmd, bool verbose) | |
1560 | { | |
1561 | int invert=0; | |
1562 | int clk=0; | |
1563 | int maxErr=100; | |
1564 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1565 | if (clk==1){ | |
1566 | invert=1; | |
1567 | clk=0; | |
1568 | } | |
1569 | if (invert != 0 && invert != 1) { | |
1570 | if (verbose) PrintAndLog("Invalid argument: %s", Cmd); | |
1571 | return 0; | |
1572 | } | |
1573 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1574 | size_t BitLen = getFromGraphBuf(BitStream); | |
1575 | if (BitLen==0) return -1; | |
1576 | uint8_t carrier=countFC(BitStream, BitLen, 0); | |
1577 | if (carrier!=2 && carrier!=4 && carrier!=8){ | |
1578 | //invalid carrier | |
1579 | return 0; | |
1580 | } | |
1581 | int errCnt=0; | |
1582 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
1583 | if (errCnt > maxErr){ | |
1584 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1585 | return 0; | |
1586 | } | |
1587 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
1588 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1589 | return 0; | |
1590 | } | |
1591 | if (verbose || g_debugMode){ | |
1592 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
1593 | if (errCnt>0){ | |
1594 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
1595 | } | |
1596 | } | |
1597 | //prime demod buffer for output | |
1598 | setDemodBuf(BitStream,BitLen,0); | |
1599 | return 1; | |
1600 | } | |
1601 | ||
1602 | // Indala 26 bit decode | |
1603 | // by marshmellow | |
1604 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1605 | int CmdIndalaDecode(const char *Cmd) | |
1606 | { | |
1607 | int ans; | |
1608 | if (strlen(Cmd)>0){ | |
1609 | ans = PSKDemod(Cmd, 0); | |
1610 | } else{ //default to RF/32 | |
1611 | ans = PSKDemod("32", 0); | |
1612 | } | |
1613 | ||
1614 | if (!ans){ | |
1615 | if (g_debugMode==1) | |
1616 | PrintAndLog("Error1: %d",ans); | |
1617 | return 0; | |
1618 | } | |
1619 | uint8_t invert=0; | |
1620 | ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert); | |
1621 | if (ans < 1) { | |
1622 | if (g_debugMode==1) | |
1623 | PrintAndLog("Error2: %d",ans); | |
1624 | return -1; | |
1625 | } | |
1626 | char showbits[251]={0x00}; | |
1627 | if (invert) | |
1628 | if (g_debugMode==1) | |
1629 | PrintAndLog("Had to invert bits"); | |
1630 | ||
1631 | //convert UID to HEX | |
1632 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
1633 | int idx; | |
1634 | uid1=0; | |
1635 | uid2=0; | |
1636 | PrintAndLog("BitLen: %d",DemodBufferLen); | |
1637 | if (DemodBufferLen==64){ | |
1638 | for( idx=0; idx<64; idx++) { | |
1639 | uid1=(uid1<<1)|(uid2>>31); | |
1640 | if (DemodBuffer[idx] == 0) { | |
1641 | uid2=(uid2<<1)|0; | |
1642 | showbits[idx]='0'; | |
1643 | } else { | |
1644 | uid2=(uid2<<1)|1; | |
1645 | showbits[idx]='1'; | |
1646 | } | |
1647 | } | |
1648 | showbits[idx]='\0'; | |
1649 | PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); | |
1650 | } | |
1651 | else { | |
1652 | uid3=0; | |
1653 | uid4=0; | |
1654 | uid5=0; | |
1655 | uid6=0; | |
1656 | uid7=0; | |
1657 | for( idx=0; idx<DemodBufferLen; idx++) { | |
1658 | uid1=(uid1<<1)|(uid2>>31); | |
1659 | uid2=(uid2<<1)|(uid3>>31); | |
1660 | uid3=(uid3<<1)|(uid4>>31); | |
1661 | uid4=(uid4<<1)|(uid5>>31); | |
1662 | uid5=(uid5<<1)|(uid6>>31); | |
1663 | uid6=(uid6<<1)|(uid7>>31); | |
1664 | if (DemodBuffer[idx] == 0) { | |
1665 | uid7=(uid7<<1)|0; | |
1666 | showbits[idx]='0'; | |
1667 | } | |
1668 | else { | |
1669 | uid7=(uid7<<1)|1; | |
1670 | showbits[idx]='1'; | |
1671 | } | |
1672 | } | |
1673 | showbits[idx]='\0'; | |
1674 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); | |
1675 | } | |
1676 | if (g_debugMode){ | |
1677 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1678 | printDemodBuff(); | |
1679 | } | |
1680 | return 1; | |
1681 | } | |
1682 | ||
1683 | int CmdPSKNexWatch(const char *Cmd) | |
1684 | { | |
1685 | if (!PSKDemod("", false)) return 0; | |
1686 | uint8_t preamble[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; | |
1687 | size_t startIdx = 0, size = DemodBufferLen; | |
1688 | bool invert = false; | |
1689 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){ | |
1690 | // if didn't find preamble try again inverting | |
1691 | if (!PSKDemod("1", false)) return 0; | |
1692 | size = DemodBufferLen; | |
1693 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0; | |
1694 | invert = true; | |
1695 | } | |
1696 | if (size != 128) return 0; | |
1697 | setDemodBuf(DemodBuffer, size, startIdx+4); | |
1698 | startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0) | |
1699 | //get ID | |
1700 | uint32_t ID = 0; | |
1701 | for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){ | |
1702 | for (uint8_t idx=0; idx<8; idx++){ | |
1703 | ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)]; | |
1704 | } | |
1705 | } | |
1706 | //parity check (TBD) | |
1707 | ||
1708 | //checksum check (TBD) | |
1709 | ||
1710 | //output | |
1711 | PrintAndLog("NexWatch ID: %d", ID); | |
1712 | if (invert){ | |
1713 | PrintAndLog("Had to Invert - probably NexKey"); | |
1714 | for (uint8_t idx=0; idx<size; idx++) | |
1715 | DemodBuffer[idx] ^= 1; | |
1716 | } | |
1717 | ||
1718 | CmdPrintDemodBuff("x"); | |
1719 | return 1; | |
1720 | } | |
1721 | ||
1722 | // by marshmellow | |
1723 | // takes 3 arguments - clock, invert, maxErr as integers | |
1724 | // attempts to demodulate nrz only | |
1725 | // prints binary found and saves in demodbuffer for further commands | |
1726 | int NRZrawDemod(const char *Cmd, bool verbose) | |
1727 | { | |
1728 | int invert=0; | |
1729 | int clk=0; | |
1730 | int maxErr=100; | |
1731 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1732 | if (clk==1){ | |
1733 | invert=1; | |
1734 | clk=0; | |
1735 | } | |
1736 | if (invert != 0 && invert != 1) { | |
1737 | PrintAndLog("Invalid argument: %s", Cmd); | |
1738 | return 0; | |
1739 | } | |
1740 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1741 | size_t BitLen = getFromGraphBuf(BitStream); | |
1742 | if (BitLen==0) return 0; | |
1743 | int errCnt=0; | |
1744 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
1745 | if (errCnt > maxErr){ | |
1746 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1747 | return 0; | |
1748 | } | |
1749 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
1750 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1751 | return 0; | |
1752 | } | |
1753 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1754 | //prime demod buffer for output | |
1755 | setDemodBuf(BitStream,BitLen,0); | |
1756 | ||
1757 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
1758 | if (verbose || g_debugMode) { | |
1759 | PrintAndLog("NRZ demoded bitstream:"); | |
1760 | // Now output the bitstream to the scrollback by line of 16 bits | |
1761 | printDemodBuff(); | |
1762 | } | |
1763 | return 1; | |
1764 | } | |
1765 | ||
1766 | int CmdNRZrawDemod(const char *Cmd) | |
1767 | { | |
1768 | char cmdp = param_getchar(Cmd, 0); | |
1769 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1770 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); | |
1771 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1772 | PrintAndLog(" <invert>, 1 for invert output"); | |
1773 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1774 | PrintAndLog(""); | |
1775 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
1776 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1777 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1778 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1779 | PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
1780 | return 0; | |
1781 | } | |
1782 | return NRZrawDemod(Cmd, TRUE); | |
1783 | } | |
1784 | ||
1785 | // by marshmellow | |
1786 | // takes 3 arguments - clock, invert, maxErr as integers | |
1787 | // attempts to demodulate psk only | |
1788 | // prints binary found and saves in demodbuffer for further commands | |
1789 | int CmdPSK1rawDemod(const char *Cmd) | |
1790 | { | |
1791 | int ans; | |
1792 | char cmdp = param_getchar(Cmd, 0); | |
1793 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1794 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); | |
1795 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1796 | PrintAndLog(" <invert>, 1 for invert output"); | |
1797 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1798 | PrintAndLog(""); | |
1799 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
1800 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1801 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1802 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1803 | PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors"); | |
1804 | return 0; | |
1805 | } | |
1806 | ans = PSKDemod(Cmd, TRUE); | |
1807 | //output | |
1808 | if (!ans){ | |
1809 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
1813 | PrintAndLog("PSK1 demoded bitstream:"); | |
1814 | // Now output the bitstream to the scrollback by line of 16 bits | |
1815 | printDemodBuff(); | |
1816 | return 1; | |
1817 | } | |
1818 | ||
1819 | // by marshmellow | |
1820 | // takes same args as cmdpsk1rawdemod | |
1821 | int CmdPSK2rawDemod(const char *Cmd) | |
1822 | { | |
1823 | int ans=0; | |
1824 | char cmdp = param_getchar(Cmd, 0); | |
1825 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1826 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); | |
1827 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1828 | PrintAndLog(" <invert>, 1 for invert output"); | |
1829 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1830 | PrintAndLog(""); | |
1831 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1832 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1833 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1834 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1835 | PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors"); | |
1836 | return 0; | |
1837 | } | |
1838 | ans=PSKDemod(Cmd, TRUE); | |
1839 | if (!ans){ | |
1840 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1841 | return 0; | |
1842 | } | |
1843 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1844 | PrintAndLog("PSK2 demoded bitstream:"); | |
1845 | // Now output the bitstream to the scrollback by line of 16 bits | |
1846 | printDemodBuff(); | |
1847 | return 1; | |
1848 | } | |
1849 | ||
1850 | // by marshmellow - combines all raw demod functions into one menu command | |
1851 | int CmdRawDemod(const char *Cmd) | |
1852 | { | |
1853 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1854 | ||
1855 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { | |
1856 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); | |
1857 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); | |
1858 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
1859 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); | |
1860 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1861 | PrintAndLog(""); | |
1862 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); | |
1863 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); | |
1864 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); | |
1865 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); | |
1866 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1867 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1868 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1869 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1870 | return 0; | |
1871 | } | |
1872 | char cmdp2 = Cmd[1]; | |
1873 | int ans = 0; | |
1874 | if (cmdp == 'f' && cmdp2 == 's'){ | |
1875 | ans = CmdFSKrawdemod(Cmd+2); | |
1876 | } else if(cmdp == 'a' && cmdp2 == 'b'){ | |
1877 | ans = Cmdaskbiphdemod(Cmd+2); | |
1878 | } else if(cmdp == 'a' && cmdp2 == 'm'){ | |
1879 | ans = Cmdaskmandemod(Cmd+2); | |
1880 | } else if(cmdp == 'a' && cmdp2 == 'r'){ | |
1881 | ans = Cmdaskrawdemod(Cmd+2); | |
1882 | } else if(cmdp == 'n' && cmdp2 == 'r'){ | |
1883 | ans = CmdNRZrawDemod(Cmd+2); | |
1884 | } else if(cmdp == 'p' && cmdp2 == '1'){ | |
1885 | ans = CmdPSK1rawDemod(Cmd+2); | |
1886 | } else if(cmdp == 'p' && cmdp2 == '2'){ | |
1887 | ans = CmdPSK2rawDemod(Cmd+2); | |
1888 | } else { | |
1889 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1890 | } | |
1891 | return ans; | |
1892 | } | |
1893 | ||
1894 | int CmdGrid(const char *Cmd) | |
1895 | { | |
1896 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); | |
1897 | PlotGridXdefault= PlotGridX; | |
1898 | PlotGridYdefault= PlotGridY; | |
1899 | RepaintGraphWindow(); | |
1900 | return 0; | |
1901 | } | |
1902 | ||
1903 | int CmdHexsamples(const char *Cmd) | |
1904 | { | |
1905 | int i, j; | |
1906 | int requested = 0; | |
1907 | int offset = 0; | |
1908 | char string_buf[25]; | |
1909 | char* string_ptr = string_buf; | |
1910 | uint8_t got[BIGBUF_SIZE]; | |
1911 | ||
1912 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1913 | ||
1914 | /* if no args send something */ | |
1915 | if (requested == 0) { | |
1916 | requested = 8; | |
1917 | } | |
1918 | if (offset + requested > sizeof(got)) { | |
1919 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1920 | return 0; | |
1921 | } | |
1922 | ||
1923 | GetFromBigBuf(got,requested,offset); | |
1924 | WaitForResponse(CMD_ACK,NULL); | |
1925 | ||
1926 | i = 0; | |
1927 | for (j = 0; j < requested; j++) { | |
1928 | i++; | |
1929 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1930 | if (i == 8) { | |
1931 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1932 | PrintAndLog("%s", string_buf); | |
1933 | string_buf[0] = '\0'; | |
1934 | string_ptr = string_buf; | |
1935 | i = 0; | |
1936 | } | |
1937 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1938 | *(string_ptr - 1) = '\0'; | |
1939 | PrintAndLog("%s", string_buf); | |
1940 | string_buf[0] = '\0'; | |
1941 | } | |
1942 | } | |
1943 | return 0; | |
1944 | } | |
1945 | ||
1946 | int CmdHide(const char *Cmd) | |
1947 | { | |
1948 | HideGraphWindow(); | |
1949 | return 0; | |
1950 | } | |
1951 | ||
1952 | //zero mean GraphBuffer | |
1953 | int CmdHpf(const char *Cmd) | |
1954 | { | |
1955 | int i; | |
1956 | int accum = 0; | |
1957 | ||
1958 | for (i = 10; i < GraphTraceLen; ++i) | |
1959 | accum += GraphBuffer[i]; | |
1960 | accum /= (GraphTraceLen - 10); | |
1961 | for (i = 0; i < GraphTraceLen; ++i) | |
1962 | GraphBuffer[i] -= accum; | |
1963 | ||
1964 | RepaintGraphWindow(); | |
1965 | return 0; | |
1966 | } | |
1967 | typedef struct { | |
1968 | uint8_t * buffer; | |
1969 | uint32_t numbits; | |
1970 | uint32_t position; | |
1971 | } BitstreamOut; | |
1972 | ||
1973 | bool _headBit( BitstreamOut *stream) | |
1974 | { | |
1975 | int bytepos = stream->position >> 3; // divide by 8 | |
1976 | int bitpos = (stream->position++) & 7; // mask out 00000111 | |
1977 | return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; | |
1978 | } | |
1979 | ||
1980 | uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) | |
1981 | { | |
1982 | int i; | |
1983 | uint8_t val = 0; | |
1984 | for(i =0 ; i < bits_per_sample; i++) | |
1985 | { | |
1986 | val |= (_headBit(b) << (7-i)); | |
1987 | } | |
1988 | return val; | |
1989 | } | |
1990 | ||
1991 | int getSamples(const char *Cmd, bool silent) | |
1992 | { | |
1993 | //If we get all but the last byte in bigbuf, | |
1994 | // we don't have to worry about remaining trash | |
1995 | // in the last byte in case the bits-per-sample | |
1996 | // does not line up on byte boundaries | |
1997 | ||
1998 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1999 | ||
2000 | int n = strtol(Cmd, NULL, 0); | |
2001 | ||
2002 | if (n == 0) | |
2003 | n = sizeof(got); | |
2004 | ||
2005 | if (n > sizeof(got)) | |
2006 | n = sizeof(got); | |
2007 | ||
2008 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
2009 | GetFromBigBuf(got,n,0); | |
2010 | PrintAndLog("Data fetched"); | |
2011 | UsbCommand response; | |
2012 | WaitForResponse(CMD_ACK, &response); | |
2013 | uint8_t bits_per_sample = 8; | |
2014 | ||
2015 | //Old devices without this feature would send 0 at arg[0] | |
2016 | if(response.arg[0] > 0) | |
2017 | { | |
2018 | sample_config *sc = (sample_config *) response.d.asBytes; | |
2019 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
2020 | , sc->decimation); | |
2021 | bits_per_sample = sc->bits_per_sample; | |
2022 | } | |
2023 | if(bits_per_sample < 8) | |
2024 | { | |
2025 | PrintAndLog("Unpacking..."); | |
2026 | BitstreamOut bout = { got, bits_per_sample * n, 0}; | |
2027 | int j =0; | |
2028 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { | |
2029 | uint8_t sample = getByte(bits_per_sample, &bout); | |
2030 | GraphBuffer[j] = ((int) sample )- 128; | |
2031 | } | |
2032 | GraphTraceLen = j; | |
2033 | PrintAndLog("Unpacked %d samples" , j ); | |
2034 | }else | |
2035 | { | |
2036 | for (int j = 0; j < n; j++) { | |
2037 | GraphBuffer[j] = ((int)got[j]) - 128; | |
2038 | } | |
2039 | GraphTraceLen = n; | |
2040 | } | |
2041 | ||
2042 | RepaintGraphWindow(); | |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | int CmdSamples(const char *Cmd) | |
2047 | { | |
2048 | return getSamples(Cmd, false); | |
2049 | } | |
2050 | ||
2051 | int CmdTuneSamples(const char *Cmd) | |
2052 | { | |
2053 | int timeout = 0; | |
2054 | printf("\nMeasuring antenna characteristics, please wait..."); | |
2055 | ||
2056 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; | |
2057 | SendCommand(&c); | |
2058 | ||
2059 | UsbCommand resp; | |
2060 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
2061 | timeout++; | |
2062 | printf("."); | |
2063 | if (timeout > 7) { | |
2064 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
2065 | return 1; | |
2066 | } | |
2067 | } | |
2068 | ||
2069 | int peakv, peakf; | |
2070 | int vLf125, vLf134, vHf; | |
2071 | vLf125 = resp.arg[0] & 0xffff; | |
2072 | vLf134 = resp.arg[0] >> 16; | |
2073 | vHf = resp.arg[1] & 0xffff;; | |
2074 | peakf = resp.arg[2] & 0xffff; | |
2075 | peakv = resp.arg[2] >> 16; | |
2076 | PrintAndLog(""); | |
2077 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
2078 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
2079 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
2080 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
2081 | ||
2082 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. | |
2083 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
2084 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
2085 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
2086 | ||
2087 | if (peakv < LF_UNUSABLE_V) | |
2088 | PrintAndLog("# Your LF antenna is unusable."); | |
2089 | else if (peakv < LF_MARGINAL_V) | |
2090 | PrintAndLog("# Your LF antenna is marginal."); | |
2091 | if (vHf < HF_UNUSABLE_V) | |
2092 | PrintAndLog("# Your HF antenna is unusable."); | |
2093 | else if (vHf < HF_MARGINAL_V) | |
2094 | PrintAndLog("# Your HF antenna is marginal."); | |
2095 | ||
2096 | if (peakv >= LF_UNUSABLE_V) { | |
2097 | for (int i = 0; i < 256; i++) { | |
2098 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
2099 | } | |
2100 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
2101 | PrintAndLog("\n"); | |
2102 | GraphTraceLen = 256; | |
2103 | ShowGraphWindow(); | |
2104 | RepaintGraphWindow(); | |
2105 | } | |
2106 | ||
2107 | return 0; | |
2108 | } | |
2109 | ||
2110 | ||
2111 | int CmdLoad(const char *Cmd) | |
2112 | { | |
2113 | char filename[FILE_PATH_SIZE] = {0x00}; | |
2114 | int len = 0; | |
2115 | ||
2116 | len = strlen(Cmd); | |
2117 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2118 | memcpy(filename, Cmd, len); | |
2119 | ||
2120 | FILE *f = fopen(filename, "r"); | |
2121 | if (!f) { | |
2122 | PrintAndLog("couldn't open '%s'", filename); | |
2123 | return 0; | |
2124 | } | |
2125 | ||
2126 | GraphTraceLen = 0; | |
2127 | char line[80]; | |
2128 | while (fgets(line, sizeof (line), f)) { | |
2129 | GraphBuffer[GraphTraceLen] = atoi(line); | |
2130 | GraphTraceLen++; | |
2131 | } | |
2132 | fclose(f); | |
2133 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
2134 | RepaintGraphWindow(); | |
2135 | return 0; | |
2136 | } | |
2137 | ||
2138 | int CmdLtrim(const char *Cmd) | |
2139 | { | |
2140 | int ds = atoi(Cmd); | |
2141 | if (GraphTraceLen<=0) return 0; | |
2142 | for (int i = ds; i < GraphTraceLen; ++i) | |
2143 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
2144 | GraphTraceLen -= ds; | |
2145 | ||
2146 | RepaintGraphWindow(); | |
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | // trim graph to input argument length | |
2151 | int CmdRtrim(const char *Cmd) | |
2152 | { | |
2153 | int ds = atoi(Cmd); | |
2154 | ||
2155 | GraphTraceLen = ds; | |
2156 | ||
2157 | RepaintGraphWindow(); | |
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | int CmdNorm(const char *Cmd) | |
2162 | { | |
2163 | int i; | |
2164 | int max = INT_MIN, min = INT_MAX; | |
2165 | ||
2166 | for (i = 10; i < GraphTraceLen; ++i) { | |
2167 | if (GraphBuffer[i] > max) | |
2168 | max = GraphBuffer[i]; | |
2169 | if (GraphBuffer[i] < min) | |
2170 | min = GraphBuffer[i]; | |
2171 | } | |
2172 | ||
2173 | if (max != min) { | |
2174 | for (i = 0; i < GraphTraceLen; ++i) { | |
2175 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / | |
2176 | (max - min); | |
2177 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work | |
2178 | } | |
2179 | } | |
2180 | RepaintGraphWindow(); | |
2181 | return 0; | |
2182 | } | |
2183 | ||
2184 | int CmdPlot(const char *Cmd) | |
2185 | { | |
2186 | ShowGraphWindow(); | |
2187 | return 0; | |
2188 | } | |
2189 | ||
2190 | int CmdSave(const char *Cmd) | |
2191 | { | |
2192 | char filename[FILE_PATH_SIZE] = {0x00}; | |
2193 | int len = 0; | |
2194 | ||
2195 | len = strlen(Cmd); | |
2196 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2197 | memcpy(filename, Cmd, len); | |
2198 | ||
2199 | ||
2200 | FILE *f = fopen(filename, "w"); | |
2201 | if(!f) { | |
2202 | PrintAndLog("couldn't open '%s'", filename); | |
2203 | return 0; | |
2204 | } | |
2205 | int i; | |
2206 | for (i = 0; i < GraphTraceLen; i++) { | |
2207 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2208 | } | |
2209 | fclose(f); | |
2210 | PrintAndLog("saved to '%s'", Cmd); | |
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | int CmdScale(const char *Cmd) | |
2215 | { | |
2216 | CursorScaleFactor = atoi(Cmd); | |
2217 | if (CursorScaleFactor == 0) { | |
2218 | PrintAndLog("bad, can't have zero scale"); | |
2219 | CursorScaleFactor = 1; | |
2220 | } | |
2221 | RepaintGraphWindow(); | |
2222 | return 0; | |
2223 | } | |
2224 | ||
2225 | int CmdDirectionalThreshold(const char *Cmd) | |
2226 | { | |
2227 | int8_t upThres = param_get8(Cmd, 0); | |
2228 | int8_t downThres = param_get8(Cmd, 1); | |
2229 | ||
2230 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
2231 | ||
2232 | int lastValue = GraphBuffer[0]; | |
2233 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
2234 | ||
2235 | for (int i = 1; i < GraphTraceLen; ++i) { | |
2236 | // Apply first threshold to samples heading up | |
2237 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2238 | { | |
2239 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2240 | GraphBuffer[i] = 1; | |
2241 | } | |
2242 | // Apply second threshold to samples heading down | |
2243 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2244 | { | |
2245 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2246 | GraphBuffer[i] = -1; | |
2247 | } | |
2248 | else | |
2249 | { | |
2250 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2251 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2252 | ||
2253 | } | |
2254 | } | |
2255 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2256 | RepaintGraphWindow(); | |
2257 | return 0; | |
2258 | } | |
2259 | ||
2260 | int CmdZerocrossings(const char *Cmd) | |
2261 | { | |
2262 | // Zero-crossings aren't meaningful unless the signal is zero-mean. | |
2263 | CmdHpf(""); | |
2264 | ||
2265 | int sign = 1; | |
2266 | int zc = 0; | |
2267 | int lastZc = 0; | |
2268 | ||
2269 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2270 | if (GraphBuffer[i] * sign >= 0) { | |
2271 | // No change in sign, reproduce the previous sample count. | |
2272 | zc++; | |
2273 | GraphBuffer[i] = lastZc; | |
2274 | } else { | |
2275 | // Change in sign, reset the sample count. | |
2276 | sign = -sign; | |
2277 | GraphBuffer[i] = lastZc; | |
2278 | if (sign > 0) { | |
2279 | lastZc = zc; | |
2280 | zc = 0; | |
2281 | } | |
2282 | } | |
2283 | } | |
2284 | ||
2285 | RepaintGraphWindow(); | |
2286 | return 0; | |
2287 | } | |
2288 | ||
2289 | static command_t CommandTable[] = | |
2290 | { | |
2291 | {"help", CmdHelp, 1, "This help"}, | |
2292 | {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"}, | |
2293 | {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"}, | |
2294 | {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, | |
2295 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, | |
2296 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, | |
2297 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, | |
2298 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, | |
2299 | {"dec", CmdDec, 1, "Decimate samples"}, | |
2300 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
2301 | {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"}, | |
2302 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, | |
2303 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
2304 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, | |
2305 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, | |
2306 | {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, | |
2307 | {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, | |
2308 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
2309 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
2310 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
2311 | {"hide", CmdHide, 1, "Hide graph window"}, | |
2312 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
2313 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
2314 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
2315 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
2316 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, | |
2317 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, | |
2318 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
2319 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"}, | |
2320 | {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, | |
2321 | {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"}, | |
2322 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, | |
2323 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
2324 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
2325 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
2326 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, | |
2327 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
2328 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, | |
2329 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
2330 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
2331 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
2332 | {NULL, NULL, 0, NULL} | |
2333 | }; | |
2334 | ||
2335 | int CmdData(const char *Cmd) | |
2336 | { | |
2337 | CmdsParse(CommandTable, Cmd); | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | int CmdHelp(const char *Cmd) | |
2342 | { | |
2343 | CmdsHelp(CommandTable); | |
2344 | return 0; | |
2345 | } |