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a553f267 | 1 | //----------------------------------------------------------------------------- |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // Data and Graph commands | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
7fe9b0b7 | 11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
14 | #include <limits.h> | |
902cb3c0 | 15 | #include "proxmark3.h" |
7fe9b0b7 | 16 | #include "data.h" |
17 | #include "ui.h" | |
18 | #include "graph.h" | |
19 | #include "cmdparser.h" | |
d51b2eda | 20 | #include "util.h" |
7fe9b0b7 | 21 | #include "cmdmain.h" |
22 | #include "cmddata.h" | |
7db5f1ca | 23 | #include "lfdemod.h" |
31abe49f | 24 | #include "usb_cmd.h" |
73d04bb4 | 25 | #include "crc.h" |
31abe49f | 26 | |
4118b74d | 27 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
ec75f5c1 | 28 | uint8_t g_debugMode; |
4118b74d | 29 | int DemodBufferLen; |
7fe9b0b7 | 30 | static int CmdHelp(const char *Cmd); |
31 | ||
4118b74d | 32 | //set the demod buffer with given array of binary (one bit per byte) |
33 | //by marshmellow | |
ec75f5c1 | 34 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 35 | { |
13d77ef9 | 36 | if (buff == NULL) |
37 | return; | |
38 | ||
39 | if ( size >= MAX_DEMOD_BUF_LEN) | |
40 | size = MAX_DEMOD_BUF_LEN; | |
41 | ||
ec75f5c1 | 42 | size_t i = 0; |
43 | for (; i < size; i++){ | |
44 | DemodBuffer[i]=buff[startIdx++]; | |
ba1a299c | 45 | } |
46 | DemodBufferLen=size; | |
47 | return; | |
4118b74d | 48 | } |
49 | ||
ec75f5c1 | 50 | int CmdSetDebugMode(const char *Cmd) |
51 | { | |
e0165dcf | 52 | int demod=0; |
53 | sscanf(Cmd, "%i", &demod); | |
54 | g_debugMode=(uint8_t)demod; | |
55 | return 1; | |
ec75f5c1 | 56 | } |
57 | ||
4118b74d | 58 | //by marshmellow |
abd6112f | 59 | void printDemodBuff(void) |
4118b74d | 60 | { |
ba1a299c | 61 | int bitLen = DemodBufferLen; |
2767fc02 | 62 | if (bitLen<1) { |
ba1a299c | 63 | PrintAndLog("no bits found in demod buffer"); |
64 | return; | |
65 | } | |
66 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
e0165dcf | 67 | |
2767fc02 | 68 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); |
69 | PrintAndLog("%s",bin); | |
70 | ||
ba1a299c | 71 | return; |
4118b74d | 72 | } |
73 | ||
8d960002 | 74 | int CmdPrintDemodBuff(const char *Cmd) |
75 | { | |
e0165dcf | 76 | char hex; |
77 | char printBuff[512]={0x00}; | |
23f0a7d8 | 78 | uint8_t numBits = DemodBufferLen & 0xFFFC; |
e0165dcf | 79 | sscanf(Cmd, "%c", &hex); |
80 | if (hex == 'h'){ | |
81 | PrintAndLog("Usage: data printdemodbuffer [x]"); | |
82 | PrintAndLog("Options: "); | |
83 | PrintAndLog(" h This help"); | |
84 | PrintAndLog(" x output in hex (omit for binary output)"); | |
85 | return 0; | |
86 | } | |
87 | if (hex == 'x'){ | |
88 | numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits); | |
89 | if (numBits==0) return 0; | |
90 | PrintAndLog("DemodBuffer: %s",printBuff); | |
91 | } else { | |
92 | printDemodBuff(); | |
93 | } | |
94 | return 1; | |
8d960002 | 95 | } |
7fe9b0b7 | 96 | |
2767fc02 | 97 | //by marshmellow |
78f5b1a7 | 98 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer |
99 | int CmdGetBitStream(const char *Cmd) | |
100 | { | |
e0165dcf | 101 | int i; |
102 | CmdHpf(Cmd); | |
103 | for (i = 0; i < GraphTraceLen; i++) { | |
104 | if (GraphBuffer[i] >= 1) { | |
105 | GraphBuffer[i] = 1; | |
106 | } else { | |
107 | GraphBuffer[i] = 0; | |
108 | } | |
109 | } | |
110 | RepaintGraphWindow(); | |
111 | return 0; | |
78f5b1a7 | 112 | } |
113 | ||
d5a72d2f | 114 | //by marshmellow |
abd6112f | 115 | //print 64 bit EM410x ID in multiple formats |
b41534d1 | 116 | void printEM410x(uint32_t hi, uint64_t id) |
2fc2150e | 117 | { |
e0165dcf | 118 | if (id || hi){ |
119 | uint64_t iii=1; | |
120 | uint64_t id2lo=0; | |
121 | uint32_t ii=0; | |
122 | uint32_t i=0; | |
123 | for (ii=5; ii>0;ii--){ | |
124 | for (i=0;i<8;i++){ | |
125 | id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); | |
126 | } | |
127 | } | |
128 | if (hi){ | |
129 | //output 88 bit em id | |
2767fc02 | 130 | PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id); |
e0165dcf | 131 | } else{ |
132 | //output 40 bit em id | |
2767fc02 | 133 | PrintAndLog("\nEM TAG ID : %010llX", id); |
134 | PrintAndLog("Unique TAG ID : %010llX", id2lo); | |
e0165dcf | 135 | PrintAndLog("\nPossible de-scramble patterns"); |
136 | PrintAndLog("HoneyWell IdentKey {"); | |
137 | PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); | |
138 | PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF); | |
139 | PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); | |
140 | PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); | |
141 | PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF)); | |
142 | PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF)); | |
143 | PrintAndLog("DEZ 14/IK2 : %014lld",id); | |
144 | PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); | |
145 | PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld", | |
146 | (id2lo & 0xf000000000) >> 36, | |
147 | (id2lo & 0x0f00000000) >> 32, | |
148 | (id2lo & 0x00f0000000) >> 28, | |
149 | (id2lo & 0x000f000000) >> 24, | |
150 | (id2lo & 0x0000f00000) >> 20, | |
151 | (id2lo & 0x00000f0000) >> 16, | |
152 | (id2lo & 0x000000f000) >> 12, | |
153 | (id2lo & 0x0000000f00) >> 8, | |
154 | (id2lo & 0x00000000f0) >> 4, | |
155 | (id2lo & 0x000000000f) | |
156 | ); | |
157 | uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00; | |
158 | PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); | |
2767fc02 | 159 | PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton); |
e0165dcf | 160 | |
161 | uint32_t p1id = (id & 0xFFFFFF); | |
162 | uint8_t arr[32] = {0x00}; | |
163 | int i =0; | |
164 | int j = 23; | |
165 | for (; i < 24; ++i, --j ){ | |
166 | arr[i] = (p1id >> i) & 1; | |
167 | } | |
168 | ||
169 | uint32_t p1 = 0; | |
170 | ||
171 | p1 |= arr[23] << 21; | |
172 | p1 |= arr[22] << 23; | |
173 | p1 |= arr[21] << 20; | |
174 | p1 |= arr[20] << 22; | |
175 | ||
176 | p1 |= arr[19] << 18; | |
177 | p1 |= arr[18] << 16; | |
178 | p1 |= arr[17] << 19; | |
179 | p1 |= arr[16] << 17; | |
180 | ||
181 | p1 |= arr[15] << 13; | |
182 | p1 |= arr[14] << 15; | |
183 | p1 |= arr[13] << 12; | |
184 | p1 |= arr[12] << 14; | |
185 | ||
186 | p1 |= arr[11] << 6; | |
187 | p1 |= arr[10] << 2; | |
188 | p1 |= arr[9] << 7; | |
189 | p1 |= arr[8] << 1; | |
190 | ||
191 | p1 |= arr[7] << 0; | |
192 | p1 |= arr[6] << 8; | |
193 | p1 |= arr[5] << 11; | |
194 | p1 |= arr[4] << 3; | |
195 | ||
196 | p1 |= arr[3] << 10; | |
197 | p1 |= arr[2] << 4; | |
198 | p1 |= arr[1] << 5; | |
199 | p1 |= arr[0] << 9; | |
2767fc02 | 200 | PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1); |
e0165dcf | 201 | |
202 | uint16_t sebury1 = id & 0xFFFF; | |
203 | uint8_t sebury2 = (id >> 16) & 0x7F; | |
204 | uint32_t sebury3 = id & 0x7FFFFF; | |
2767fc02 | 205 | PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3); |
e0165dcf | 206 | } |
207 | } | |
208 | return; | |
eb191de6 | 209 | } |
210 | ||
13d77ef9 | 211 | |
212 | int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo) | |
213 | { | |
e0165dcf | 214 | int ans = ASKmanDemod(Cmd, FALSE, FALSE); |
215 | if (!ans) return 0; | |
13d77ef9 | 216 | |
e0165dcf | 217 | size_t idx=0; |
218 | if (Em410xDecode(DemodBuffer,(size_t *) &DemodBufferLen, &idx, hi, lo)){ | |
219 | if (g_debugMode){ | |
220 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, DemodBufferLen); | |
221 | printDemodBuff(); | |
222 | } | |
223 | return 1; | |
224 | } | |
225 | return 0; | |
13d77ef9 | 226 | } |
e888ed8e | 227 | //by marshmellow |
e770c648 | 228 | //takes 3 arguments - clock, invert and maxErr as integers |
229 | //attempts to demodulate ask while decoding manchester | |
230 | //prints binary found and saves in graphbuffer for further commands | |
231 | int CmdAskEM410xDemod(const char *Cmd) | |
232 | { | |
e0165dcf | 233 | char cmdp = param_getchar(Cmd, 0); |
234 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
235 | PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); | |
236 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
237 | PrintAndLog(" <invert>, 1 for invert output"); | |
238 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
239 | PrintAndLog(""); | |
240 | PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); | |
241 | PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); | |
242 | PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); | |
243 | PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); | |
244 | 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"); | |
245 | return 0; | |
246 | } | |
247 | uint32_t hi = 0; | |
248 | uint64_t lo = 0; | |
249 | if (AskEm410xDemod(Cmd, &hi, &lo)) { | |
250 | PrintAndLog("EM410x pattern found: "); | |
251 | printEM410x(hi, lo); | |
252 | return 1; | |
253 | } | |
254 | return 0; | |
e770c648 | 255 | } |
256 | ||
4ac906d1 | 257 | int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch) |
e888ed8e | 258 | { |
e0165dcf | 259 | int invert=0; |
260 | int clk=0; | |
261 | int maxErr=100; | |
23f0a7d8 | 262 | int maxLen=512*64; |
f8f894a5 | 263 | //param_getdec(Cmd, 0, &clk); |
264 | //param_getdec(Cmd, 1, &invert); | |
265 | //maxErr = param_get32ex(Cmd, 2, 0xFFFFFFFF, 10); | |
266 | //if (maxErr == 0xFFFFFFFF) maxErr=100; | |
e0165dcf | 267 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
23f0a7d8 | 268 | sscanf(Cmd, "%i %i %i %i", &clk, &invert, &maxErr, &maxLen); |
e0165dcf | 269 | if (invert != 0 && invert != 1) { |
270 | PrintAndLog("Invalid argument: %s", Cmd); | |
271 | return 0; | |
272 | } | |
273 | if (clk==1){ | |
274 | invert=1; | |
275 | clk=0; | |
276 | } | |
277 | size_t BitLen = getFromGraphBuf(BitStream); | |
2767fc02 | 278 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
279 | if (!BitLen) return 0; | |
23f0a7d8 | 280 | if (maxLen<BitLen && maxLen != 0) BitLen = maxLen; |
2767fc02 | 281 | int errCnt = askmandemod(BitStream, &BitLen, &clk, &invert, maxErr); |
e0165dcf | 282 | if (errCnt<0||BitLen<16){ //if fatal error (or -1) |
2767fc02 | 283 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); |
e0165dcf | 284 | return 0; |
285 | } | |
2767fc02 | 286 | if (errCnt>maxErr){ |
287 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); | |
288 | return 0; | |
289 | } | |
290 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 291 | |
292 | //output | |
293 | if (errCnt>0){ | |
2767fc02 | 294 | if (verbose || g_debugMode) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 295 | } |
296 | if (verbose || g_debugMode) PrintAndLog("ASK/Manchester decoded bitstream:"); | |
297 | // Now output the bitstream to the scrollback by line of 16 bits | |
298 | setDemodBuf(BitStream,BitLen,0); | |
299 | if (verbose || g_debugMode) printDemodBuff(); | |
300 | uint64_t lo =0; | |
301 | uint32_t hi =0; | |
302 | size_t idx=0; | |
303 | if (emSearch){ | |
304 | if (Em410xDecode(BitStream, &BitLen, &idx, &hi, &lo)){ | |
305 | //set GraphBuffer for clone or sim command | |
306 | setDemodBuf(BitStream, BitLen, idx); | |
307 | if (g_debugMode){ | |
308 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
309 | printDemodBuff(); | |
310 | } | |
311 | if (verbose) PrintAndLog("EM410x pattern found: "); | |
312 | if (verbose) printEM410x(hi, lo); | |
313 | return 1; | |
314 | } | |
315 | } | |
316 | return 1; | |
eb191de6 | 317 | } |
318 | ||
4ac906d1 | 319 | //by marshmellow |
320 | //takes 3 arguments - clock, invert, maxErr as integers | |
321 | //attempts to demodulate ask while decoding manchester | |
322 | //prints binary found and saves in graphbuffer for further commands | |
323 | int Cmdaskmandemod(const char *Cmd) | |
324 | { | |
e0165dcf | 325 | char cmdp = param_getchar(Cmd, 0); |
23f0a7d8 | 326 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') { |
327 | PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError] [setSmplLen]"); | |
e0165dcf | 328 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); |
329 | PrintAndLog(" <invert>, 1 for invert output"); | |
330 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
23f0a7d8 | 331 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)."); |
e0165dcf | 332 | PrintAndLog(""); |
333 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
334 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
335 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
336 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
337 | 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"); | |
338 | return 0; | |
339 | } | |
340 | return ASKmanDemod(Cmd, TRUE, TRUE); | |
4ac906d1 | 341 | } |
342 | ||
eb191de6 | 343 | //by marshmellow |
d5a72d2f | 344 | //manchester decode |
eb191de6 | 345 | //stricktly take 10 and 01 and convert to 0 and 1 |
346 | int Cmdmandecoderaw(const char *Cmd) | |
347 | { | |
e0165dcf | 348 | int i =0; |
349 | int errCnt=0; | |
350 | size_t size=0; | |
351 | size_t maxErr = 20; | |
352 | char cmdp = param_getchar(Cmd, 0); | |
1f918317 | 353 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { |
354 | PrintAndLog("Usage: data manrawdecode [maxErr]"); | |
e0165dcf | 355 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); |
356 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
1f918317 | 357 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); |
e0165dcf | 358 | PrintAndLog(""); |
359 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
360 | return 0; | |
361 | } | |
362 | if (DemodBufferLen==0) return 0; | |
363 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
364 | int high=0,low=0; | |
365 | for (;i<DemodBufferLen;++i){ | |
366 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
367 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
368 | BitStream[i]=DemodBuffer[i]; | |
369 | } | |
1f918317 | 370 | if (high>7 || low <0 ){ |
2767fc02 | 371 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); |
e0165dcf | 372 | return 0; |
373 | } | |
1f918317 | 374 | |
375 | sscanf(Cmd, "%i", &maxErr); | |
e0165dcf | 376 | size=i; |
377 | errCnt=manrawdecode(BitStream, &size); | |
378 | if (errCnt>=maxErr){ | |
379 | PrintAndLog("Too many errors: %d",errCnt); | |
380 | return 0; | |
381 | } | |
382 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
2767fc02 | 383 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
e0165dcf | 384 | if (errCnt==0){ |
385 | uint64_t id = 0; | |
386 | uint32_t hi = 0; | |
387 | size_t idx=0; | |
388 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
389 | //need to adjust to set bitstream back to manchester encoded data | |
390 | //setDemodBuf(BitStream, size, idx); | |
391 | ||
392 | printEM410x(hi, id); | |
393 | } | |
394 | } | |
395 | return 1; | |
d5a72d2f | 396 | } |
397 | ||
398 | //by marshmellow | |
399 | //biphase decode | |
400 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 401 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
402 | // and "invert" default = 0 if 1 it will invert output | |
2767fc02 | 403 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] |
d5a72d2f | 404 | int CmdBiphaseDecodeRaw(const char *Cmd) |
405 | { | |
ba1a299c | 406 | size_t size=0; |
b41534d1 | 407 | int offset=0, invert=0, maxErr=20, errCnt=0; |
b4fb11ba | 408 | char cmdp = param_getchar(Cmd, 0); |
409 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
b41534d1 | 410 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); |
411 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
b4fb11ba | 412 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); |
e0165dcf | 413 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); |
b4fb11ba | 414 | PrintAndLog(""); |
415 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
416 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
b41534d1 | 417 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); |
b4fb11ba | 418 | PrintAndLog(""); |
419 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
420 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
421 | return 0; | |
422 | } | |
b41534d1 | 423 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); |
424 | if (DemodBufferLen==0){ | |
425 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
b4fb11ba | 426 | return 0; |
427 | } | |
b41534d1 | 428 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
429 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
430 | size = DemodBufferLen; | |
1e090a61 | 431 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
b41534d1 | 432 | if (errCnt<0){ |
433 | PrintAndLog("Error during decode:%d", errCnt); | |
434 | return 0; | |
435 | } | |
436 | if (errCnt>maxErr){ | |
b4fb11ba | 437 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); |
438 | return 0; | |
439 | } | |
b41534d1 | 440 | |
441 | if (errCnt>0){ | |
2767fc02 | 442 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); |
b41534d1 | 443 | } |
444 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
2767fc02 | 445 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
b41534d1 | 446 | |
447 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
b4fb11ba | 448 | return 1; |
eb191de6 | 449 | } |
450 | ||
451 | //by marshmellow | |
6de43508 | 452 | //takes 4 arguments - clock, invert, maxErr as integers and amplify as char |
eb191de6 | 453 | //attempts to demodulate ask only |
454 | //prints binary found and saves in graphbuffer for further commands | |
4ac906d1 | 455 | int ASKrawDemod(const char *Cmd, bool verbose) |
eb191de6 | 456 | { |
e0165dcf | 457 | int invert=0; |
458 | int clk=0; | |
459 | int maxErr=100; | |
460 | uint8_t askAmp = 0; | |
461 | char amp = param_getchar(Cmd, 0); | |
462 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
463 | sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &); | |
464 | if (invert != 0 && invert != 1) { | |
465 | if (verbose || g_debugMode) PrintAndLog("Invalid argument: %s", Cmd); | |
466 | return 0; | |
467 | } | |
468 | if (clk==1){ | |
469 | invert=1; | |
470 | clk=0; | |
471 | } | |
472 | if (amp == 'a' || amp == 'A') askAmp=1; | |
473 | size_t BitLen = getFromGraphBuf(BitStream); | |
474 | if (BitLen==0) return 0; | |
2767fc02 | 475 | int errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp); |
e0165dcf | 476 | if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
477 | if (verbose || g_debugMode) PrintAndLog("no data found"); | |
478 | if (g_debugMode) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert); | |
479 | return 0; | |
480 | } | |
2767fc02 | 481 | if (errCnt>maxErr) { |
482 | if (g_debugMode) | |
483 | PrintAndLog("Too many errors found, errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert); | |
484 | return 0; | |
485 | } | |
486 | if (verbose || g_debugMode) | |
487 | PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen); | |
e0165dcf | 488 | |
489 | //move BitStream back to DemodBuffer | |
490 | setDemodBuf(BitStream,BitLen,0); | |
491 | ||
492 | //output | |
493 | if (errCnt>0 && (verbose || g_debugMode)){ | |
2767fc02 | 494 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d", errCnt); |
e0165dcf | 495 | } |
496 | if (verbose || g_debugMode){ | |
497 | PrintAndLog("ASK demoded bitstream:"); | |
498 | // Now output the bitstream to the scrollback by line of 16 bits | |
2767fc02 | 499 | printDemodBuff(); |
e0165dcf | 500 | } |
501 | return 1; | |
e888ed8e | 502 | } |
503 | ||
b41534d1 | 504 | //by marshmellow |
505 | // - ASK Demod then Biphase decode GraphBuffer samples | |
506 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
507 | { | |
508 | //ask raw demod GraphBuffer first | |
509 | int offset=0, clk=0, invert=0, maxErr=0, ans=0; | |
510 | ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
511 | if (ans>0) | |
f8f894a5 | 512 | ans = ASKrawDemod(Cmd+1, FALSE); |
b41534d1 | 513 | else |
514 | ans = ASKrawDemod(Cmd, FALSE); | |
515 | if (!ans) { | |
516 | if (g_debugMode || verbose) PrintAndLog("Error AskrawDemod: %d", ans); | |
517 | return 0; | |
518 | } | |
519 | ||
520 | //attempt to Biphase decode DemodBuffer | |
521 | size_t size = DemodBufferLen; | |
522 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
523 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
524 | ||
525 | int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
526 | if (errCnt < 0){ | |
527 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
528 | return 0; | |
529 | } | |
530 | if (errCnt > maxErr) { | |
531 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
532 | return 0; | |
533 | } | |
534 | //success set DemodBuffer and return | |
535 | setDemodBuf(BitStream, size, 0); | |
536 | if (g_debugMode || verbose){ | |
537 | PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt); | |
538 | printDemodBuff(); | |
539 | } | |
540 | return 1; | |
541 | } | |
542 | //by marshmellow - see ASKbiphaseDemod | |
543 | int Cmdaskbiphdemod(const char *Cmd) | |
544 | { | |
e0165dcf | 545 | char cmdp = param_getchar(Cmd, 0); |
546 | if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { | |
547 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] <amplify>"); | |
548 | PrintAndLog(" [offset], offset to begin biphase, default=0"); | |
549 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
550 | PrintAndLog(" <invert>, 1 to invert output"); | |
551 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
552 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
553 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
554 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
555 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
556 | PrintAndLog(""); | |
557 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
558 | PrintAndLog(""); | |
559 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); | |
560 | PrintAndLog(" : data rawdemod ab a = demod an ask/biph tag from GraphBuffer, amplified"); | |
561 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
562 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
563 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
564 | 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"); | |
565 | PrintAndLog(" : data rawdemod ab 0 64 1 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
566 | return 0; | |
567 | } | |
568 | return ASKbiphaseDemod(Cmd, TRUE); | |
b41534d1 | 569 | } |
570 | ||
8d960002 | 571 | //by marshmellow |
572 | //attempts to demodulate and identify a G_Prox_II verex/chubb card | |
573 | //WARNING: if it fails during some points it will destroy the DemodBuffer data | |
574 | // but will leave the GraphBuffer intact. | |
575 | //if successful it will push askraw data back to demod buffer ready for emulation | |
576 | int CmdG_Prox_II_Demod(const char *Cmd) | |
577 | { | |
e0165dcf | 578 | if (!ASKbiphaseDemod(Cmd, FALSE)){ |
579 | if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try"); | |
580 | return 0; | |
581 | } | |
582 | size_t size = DemodBufferLen; | |
583 | //call lfdemod.c demod for gProxII | |
584 | int ans = gProxII_Demod(DemodBuffer, &size); | |
585 | if (ans < 0){ | |
586 | if (g_debugMode) PrintAndLog("Error gProxII_Demod"); | |
587 | return 0; | |
588 | } | |
589 | //got a good demod | |
590 | uint32_t ByteStream[65] = {0x00}; | |
591 | uint8_t xorKey=0; | |
592 | uint8_t keyCnt=0; | |
593 | uint8_t bitCnt=0; | |
594 | uint8_t ByteCnt=0; | |
595 | size_t startIdx = ans + 6; //start after preamble | |
596 | for (size_t idx = 0; idx<size-6; idx++){ | |
597 | if ((idx+1) % 5 == 0){ | |
598 | //spacer bit - should be 0 | |
599 | if (DemodBuffer[startIdx+idx] != 0) { | |
600 | if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx); | |
601 | return 0; | |
602 | } | |
603 | continue; | |
604 | } | |
605 | if (keyCnt<8){ //lsb first | |
606 | xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt); | |
607 | keyCnt++; | |
608 | if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey); | |
609 | continue; | |
610 | } | |
611 | //lsb first | |
612 | ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt); | |
613 | bitCnt++; | |
614 | if (bitCnt % 8 == 0){ | |
615 | if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]); | |
616 | bitCnt=0; | |
617 | ByteCnt++; | |
618 | } | |
619 | } | |
620 | for (uint8_t i = 0; i < ByteCnt; i++){ | |
621 | ByteStream[i] ^= xorKey; //xor | |
622 | if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]); | |
623 | } | |
624 | //now ByteStream contains 64 bytes of decrypted raw tag data | |
625 | // | |
626 | uint8_t fmtLen = ByteStream[0]>>2; | |
627 | uint32_t FC = 0; | |
628 | uint32_t Card = 0; | |
629 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); | |
630 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
631 | uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); | |
632 | ||
633 | if (fmtLen==36){ | |
634 | FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); | |
635 | Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); | |
636 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
637 | } else if(fmtLen==26){ | |
638 | FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); | |
639 | Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); | |
640 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
641 | } else { | |
642 | PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen); | |
643 | } | |
644 | PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); | |
645 | setDemodBuf(DemodBuffer+ans, 96, 0); | |
646 | return 1; | |
8d960002 | 647 | } |
648 | ||
4ac906d1 | 649 | //by marshmellow - see ASKrawDemod |
650 | int Cmdaskrawdemod(const char *Cmd) | |
651 | { | |
e0165dcf | 652 | char cmdp = param_getchar(Cmd, 0); |
653 | if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') { | |
654 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]"); | |
655 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
656 | PrintAndLog(" <invert>, 1 to invert output"); | |
657 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
658 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
659 | PrintAndLog(""); | |
660 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); | |
661 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
662 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
663 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
664 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
665 | 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"); | |
666 | PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
667 | return 0; | |
668 | } | |
669 | return ASKrawDemod(Cmd, TRUE); | |
4ac906d1 | 670 | } |
671 | ||
73d04bb4 | 672 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) |
7fe9b0b7 | 673 | { |
e0165dcf | 674 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; |
675 | size_t Correlation = 0; | |
676 | int maxSum = 0; | |
677 | int lastMax = 0; | |
678 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
679 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
680 | int sum = 0; | |
681 | for (int j = 0; j < window; ++j) { | |
682 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
683 | } | |
684 | CorrelBuffer[i] = sum; | |
685 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
686 | //another max | |
687 | Correlation = i-lastMax; | |
688 | lastMax = i; | |
689 | if (sum > maxSum) maxSum = sum; | |
690 | } else if (sum > maxSum){ | |
691 | maxSum=sum; | |
692 | lastMax = i; | |
693 | } | |
694 | } | |
695 | if (Correlation==0){ | |
696 | //try again with wider margin | |
697 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
698 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
699 | //another max | |
700 | Correlation = i-lastMax; | |
701 | lastMax = i; | |
702 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
703 | } | |
704 | } | |
705 | } | |
706 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
707 | ||
708 | if (SaveGrph){ | |
709 | GraphTraceLen = GraphTraceLen - window; | |
710 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
711 | RepaintGraphWindow(); | |
712 | } | |
713 | return Correlation; | |
73d04bb4 | 714 | } |
7fe9b0b7 | 715 | |
9f7bbd24 | 716 | int usage_data_autocorr(void) |
717 | { | |
e0165dcf | 718 | //print help |
719 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
720 | PrintAndLog("Options: "); | |
721 | PrintAndLog(" h This help"); | |
722 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
723 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
724 | return 0; | |
9f7bbd24 | 725 | } |
726 | ||
73d04bb4 | 727 | int CmdAutoCorr(const char *Cmd) |
728 | { | |
e0165dcf | 729 | char cmdp = param_getchar(Cmd, 0); |
730 | if (cmdp == 'h' || cmdp == 'H') | |
731 | return usage_data_autocorr(); | |
732 | int window = 4000; //set default | |
733 | char grph=0; | |
734 | bool updateGrph = FALSE; | |
735 | sscanf(Cmd, "%i %c", &window, &grph); | |
736 | ||
737 | if (window >= GraphTraceLen) { | |
738 | PrintAndLog("window must be smaller than trace (%d samples)", | |
739 | GraphTraceLen); | |
740 | return 0; | |
741 | } | |
742 | if (grph == 'g') updateGrph=TRUE; | |
743 | return AutoCorrelate(window, updateGrph, TRUE); | |
7fe9b0b7 | 744 | } |
745 | ||
746 | int CmdBitsamples(const char *Cmd) | |
747 | { | |
e0165dcf | 748 | int cnt = 0; |
749 | uint8_t got[12288]; | |
952a8bb5 | 750 | |
e0165dcf | 751 | GetFromBigBuf(got,sizeof(got),0); |
752 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 753 | |
e0165dcf | 754 | for (int j = 0; j < sizeof(got); j++) { |
755 | for (int k = 0; k < 8; k++) { | |
756 | if(got[j] & (1 << (7 - k))) { | |
757 | GraphBuffer[cnt++] = 1; | |
758 | } else { | |
759 | GraphBuffer[cnt++] = 0; | |
760 | } | |
761 | } | |
762 | } | |
763 | GraphTraceLen = cnt; | |
764 | RepaintGraphWindow(); | |
765 | return 0; | |
7fe9b0b7 | 766 | } |
767 | ||
7fe9b0b7 | 768 | int CmdBuffClear(const char *Cmd) |
769 | { | |
e0165dcf | 770 | UsbCommand c = {CMD_BUFF_CLEAR}; |
771 | SendCommand(&c); | |
772 | ClearGraph(true); | |
773 | return 0; | |
7fe9b0b7 | 774 | } |
775 | ||
776 | int CmdDec(const char *Cmd) | |
777 | { | |
e0165dcf | 778 | for (int i = 0; i < (GraphTraceLen / 2); ++i) |
779 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
780 | GraphTraceLen /= 2; | |
781 | PrintAndLog("decimated by 2"); | |
782 | RepaintGraphWindow(); | |
783 | return 0; | |
7fe9b0b7 | 784 | } |
698b649e MHS |
785 | /** |
786 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
787 | * name until someone does an actual interpolation command, not just | |
788 | * blindly repeating samples | |
789 | * @param Cmd | |
790 | * @return | |
791 | */ | |
792 | int CmdUndec(const char *Cmd) | |
793 | { | |
c856ceae MHS |
794 | if(param_getchar(Cmd, 0) == 'h') |
795 | { | |
796 | PrintAndLog("Usage: data undec [factor]"); | |
797 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
798 | PrintAndLog("Options: "); | |
799 | PrintAndLog(" h This help"); | |
800 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
801 | PrintAndLog("Example: 'data undec 3'"); | |
802 | return 0; | |
803 | } | |
804 | ||
805 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
698b649e MHS |
806 | //We have memory, don't we? |
807 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
c856ceae MHS |
808 | uint32_t g_index = 0 ,s_index = 0; |
809 | while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) | |
698b649e | 810 | { |
c856ceae MHS |
811 | int count = 0; |
812 | for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) | |
813 | swap[s_index+count] = GraphBuffer[g_index]; | |
814 | s_index+=count; | |
698b649e | 815 | } |
698b649e | 816 | |
c856ceae MHS |
817 | memcpy(GraphBuffer,swap, s_index * sizeof(int)); |
818 | GraphTraceLen = s_index; | |
819 | RepaintGraphWindow(); | |
698b649e MHS |
820 | return 0; |
821 | } | |
7fe9b0b7 | 822 | |
ec75f5c1 | 823 | //by marshmellow |
824 | //shift graph zero up or down based on input + or - | |
825 | int CmdGraphShiftZero(const char *Cmd) | |
826 | { | |
827 | ||
e0165dcf | 828 | int shift=0; |
829 | //set options from parameters entered with the command | |
830 | sscanf(Cmd, "%i", &shift); | |
831 | int shiftedVal=0; | |
832 | for(int i = 0; i<GraphTraceLen; i++){ | |
833 | shiftedVal=GraphBuffer[i]+shift; | |
834 | if (shiftedVal>127) | |
835 | shiftedVal=127; | |
836 | else if (shiftedVal<-127) | |
837 | shiftedVal=-127; | |
838 | GraphBuffer[i]= shiftedVal; | |
839 | } | |
840 | CmdNorm(""); | |
841 | return 0; | |
ec75f5c1 | 842 | } |
843 | ||
6de43508 | 844 | //by marshmellow |
845 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
2767fc02 | 846 | //similar to dirtheshold, threshold commands |
6de43508 | 847 | //takes a threshold length which is the measured length between two samples then determines an edge |
848 | int CmdAskEdgeDetect(const char *Cmd) | |
849 | { | |
e0165dcf | 850 | int thresLen = 25; |
851 | sscanf(Cmd, "%i", &thresLen); | |
852 | int shift = 127; | |
853 | int shiftedVal=0; | |
854 | for(int i = 1; i<GraphTraceLen; i++){ | |
855 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
856 | shift=127; | |
857 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down | |
858 | shift=-127; | |
859 | ||
860 | shiftedVal=GraphBuffer[i]+shift; | |
861 | ||
862 | if (shiftedVal>127) | |
863 | shiftedVal=127; | |
864 | else if (shiftedVal<-127) | |
865 | shiftedVal=-127; | |
866 | GraphBuffer[i-1] = shiftedVal; | |
867 | } | |
868 | RepaintGraphWindow(); | |
869 | //CmdNorm(""); | |
870 | return 0; | |
6de43508 | 871 | } |
872 | ||
7fe9b0b7 | 873 | /* Print our clock rate */ |
ba1a299c | 874 | // uses data from graphbuffer |
f3bf15e4 | 875 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. |
7fe9b0b7 | 876 | int CmdDetectClockRate(const char *Cmd) |
877 | { | |
f3bf15e4 | 878 | char cmdp = param_getchar(Cmd, 0); |
879 | if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { | |
880 | PrintAndLog("Usage: data detectclock [modulation]"); | |
881 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); | |
882 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); | |
883 | PrintAndLog(""); | |
884 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
885 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
886 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
887 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
888 | } | |
889 | int ans=0; | |
890 | if (cmdp == 'a'){ | |
891 | ans = GetAskClock("", true, false); | |
892 | } else if (cmdp == 'f'){ | |
893 | ans = GetFskClock("", true, false); | |
894 | } else if (cmdp == 'n'){ | |
895 | ans = GetNrzClock("", true, false); | |
896 | } else if (cmdp == 'p'){ | |
897 | ans = GetPskClock("", true, false); | |
898 | } else { | |
899 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
900 | } | |
901 | return ans; | |
7fe9b0b7 | 902 | } |
66707a3b | 903 | |
2767fc02 | 904 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) |
905 | { | |
906 | char *fskType; | |
907 | if (fchigh==10 && fclow==8){ | |
908 | if (invert) //fsk2a | |
909 | fskType = "FSK2a"; | |
910 | else //fsk2 | |
911 | fskType = "FSK2"; | |
912 | } else if (fchigh == 8 && fclow == 5) { | |
913 | if (invert) | |
914 | fskType = "FSK1"; | |
915 | else | |
916 | fskType = "FSK1a"; | |
917 | } else { | |
918 | fskType = "FSK??"; | |
919 | } | |
920 | return fskType; | |
921 | } | |
922 | ||
2fc2150e | 923 | //by marshmellow |
eb191de6 | 924 | //fsk raw demod and print binary |
6de43508 | 925 | //takes 4 arguments - Clock, invert, fchigh, fclow |
926 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
4ac906d1 | 927 | int FSKrawDemod(const char *Cmd, bool verbose) |
b3b70669 | 928 | { |
e0165dcf | 929 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
930 | //set defaults | |
931 | int rfLen = 0; | |
932 | int invert = 0; | |
933 | int fchigh = 0; | |
934 | int fclow = 0; | |
935 | ||
936 | //set options from parameters entered with the command | |
937 | sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); | |
938 | ||
939 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { | |
940 | if (rfLen==1){ | |
2eec55c8 | 941 | invert = 1; //if invert option only is used |
e0165dcf | 942 | rfLen = 0; |
943 | } | |
944 | } | |
945 | ||
946 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
947 | size_t BitLen = getFromGraphBuf(BitStream); | |
948 | if (BitLen==0) return 0; | |
949 | //get field clock lengths | |
950 | uint16_t fcs=0; | |
e0165dcf | 951 | if (fchigh==0 || fclow == 0){ |
2eec55c8 | 952 | fcs = countFC(BitStream, BitLen, 1); |
e0165dcf | 953 | if (fcs==0){ |
954 | fchigh=10; | |
955 | fclow=8; | |
956 | }else{ | |
957 | fchigh = (fcs >> 8) & 0xFF; | |
958 | fclow = fcs & 0xFF; | |
959 | } | |
960 | } | |
961 | //get bit clock length | |
962 | if (rfLen==0){ | |
963 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
964 | if (rfLen == 0) rfLen = 50; | |
965 | } | |
e0165dcf | 966 | int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); |
967 | if (size>0){ | |
968 | setDemodBuf(BitStream,size,0); | |
969 | ||
970 | // Now output the bitstream to the scrollback by line of 16 bits | |
2767fc02 | 971 | if (verbose || g_debugMode) { |
972 | PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow); | |
973 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); | |
974 | printDemodBuff(); | |
e0165dcf | 975 | } |
976 | ||
977 | return 1; | |
978 | } else{ | |
2767fc02 | 979 | if (g_debugMode) PrintAndLog("no FSK data found"); |
e0165dcf | 980 | } |
981 | return 0; | |
b3b70669 | 982 | } |
983 | ||
4ac906d1 | 984 | //by marshmellow |
985 | //fsk raw demod and print binary | |
986 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
987 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
988 | int CmdFSKrawdemod(const char *Cmd) | |
989 | { | |
e0165dcf | 990 | char cmdp = param_getchar(Cmd, 0); |
991 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
992 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); | |
993 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
994 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
995 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
996 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
997 | PrintAndLog(""); | |
998 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
999 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
1000 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
1001 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
1002 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
1003 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
1004 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
1005 | return 0; | |
1006 | } | |
1007 | return FSKrawDemod(Cmd, TRUE); | |
4ac906d1 | 1008 | } |
1009 | ||
eb191de6 | 1010 | //by marshmellow (based on existing demod + holiman's refactor) |
1011 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
1012 | //print full HID Prox ID and some bit format details if found | |
b3b70669 | 1013 | int CmdFSKdemodHID(const char *Cmd) |
1014 | { | |
e0165dcf | 1015 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1016 | uint32_t hi2=0, hi=0, lo=0; | |
1017 | ||
1018 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1019 | size_t BitLen = getFromGraphBuf(BitStream); | |
1020 | if (BitLen==0) return 0; | |
1021 | //get binary from fsk wave | |
1022 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1023 | if (idx<0){ | |
1024 | if (g_debugMode){ | |
1025 | if (idx==-1){ | |
1026 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1027 | } else if (idx == -2) { | |
1028 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1029 | } else if (idx == -3) { | |
1030 | PrintAndLog("DEBUG: Preamble not found"); | |
1031 | } else if (idx == -4) { | |
1032 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
1033 | } else { | |
1034 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1035 | } | |
1036 | } | |
1037 | return 0; | |
1038 | } | |
1039 | if (hi2==0 && hi==0 && lo==0) { | |
1040 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
1041 | return 0; | |
1042 | } | |
1043 | if (hi2 != 0){ //extra large HID tags | |
1044 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", | |
1045 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); | |
1046 | } | |
1047 | else { //standard HID tags <38 bits | |
1048 | uint8_t fmtLen = 0; | |
1049 | uint32_t fc = 0; | |
1050 | uint32_t cardnum = 0; | |
1051 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
1052 | uint32_t lo2=0; | |
1053 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit | |
1054 | uint8_t idx3 = 1; | |
1055 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
1056 | lo2=lo2>>1; | |
1057 | idx3++; | |
1058 | } | |
1059 | fmtLen =idx3+19; | |
1060 | fc =0; | |
1061 | cardnum=0; | |
1062 | if(fmtLen==26){ | |
1063 | cardnum = (lo>>1)&0xFFFF; | |
1064 | fc = (lo>>17)&0xFF; | |
1065 | } | |
1066 | if(fmtLen==34){ | |
1067 | cardnum = (lo>>1)&0xFFFF; | |
1068 | fc= ((hi&1)<<15)|(lo>>17); | |
1069 | } | |
1070 | if(fmtLen==35){ | |
1071 | cardnum = (lo>>1)&0xFFFFF; | |
1072 | fc = ((hi&1)<<11)|(lo>>21); | |
1073 | } | |
1074 | } | |
1075 | else { //if bit 38 is not set then 37 bit format is used | |
1076 | fmtLen = 37; | |
1077 | fc = 0; | |
1078 | cardnum = 0; | |
1079 | if(fmtLen == 37){ | |
1080 | cardnum = (lo>>1)&0x7FFFF; | |
1081 | fc = ((hi&0xF)<<12)|(lo>>20); | |
1082 | } | |
1083 | } | |
1084 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
1085 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, | |
1086 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); | |
1087 | } | |
1088 | setDemodBuf(BitStream,BitLen,idx); | |
1089 | if (g_debugMode){ | |
1090 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
1091 | printDemodBuff(); | |
1092 | } | |
1093 | return 1; | |
ec75f5c1 | 1094 | } |
1095 | ||
04d2721b | 1096 | //by marshmellow |
1097 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 1098 | //print full Paradox Prox ID and some bit format details if found |
1099 | int CmdFSKdemodParadox(const char *Cmd) | |
1100 | { | |
e0165dcf | 1101 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1102 | uint32_t hi2=0, hi=0, lo=0; | |
1103 | ||
1104 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1105 | size_t BitLen = getFromGraphBuf(BitStream); | |
1106 | if (BitLen==0) return 0; | |
1107 | //get binary from fsk wave | |
1108 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1109 | if (idx<0){ | |
1110 | if (g_debugMode){ | |
1111 | if (idx==-1){ | |
1112 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1113 | } else if (idx == -2) { | |
1114 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1115 | } else if (idx == -3) { | |
1116 | PrintAndLog("DEBUG: Preamble not found"); | |
1117 | } else if (idx == -4) { | |
1118 | PrintAndLog("DEBUG: Error in Manchester data"); | |
1119 | } else { | |
1120 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1121 | } | |
1122 | } | |
1123 | return 0; | |
1124 | } | |
1125 | if (hi2==0 && hi==0 && lo==0){ | |
1126 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
1127 | return 0; | |
1128 | } | |
1129 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
1130 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
1131 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1132 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1133 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1134 | ||
1135 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", | |
1136 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
1137 | setDemodBuf(BitStream,BitLen,idx); | |
1138 | if (g_debugMode){ | |
1139 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
1140 | printDemodBuff(); | |
1141 | } | |
1142 | return 1; | |
b3b70669 | 1143 | } |
1144 | ||
2fc2150e | 1145 | //by marshmellow |
eb191de6 | 1146 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 |
1147 | //print ioprox ID and some format details | |
b3b70669 | 1148 | int CmdFSKdemodIO(const char *Cmd) |
1149 | { | |
e0165dcf | 1150 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1151 | //set defaults | |
1152 | int idx=0; | |
1153 | //something in graphbuffer? | |
1154 | if (GraphTraceLen < 65) { | |
1155 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
1156 | return 0; | |
1157 | } | |
1158 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1159 | size_t BitLen = getFromGraphBuf(BitStream); | |
1160 | if (BitLen==0) return 0; | |
1161 | ||
1162 | //get binary from fsk wave | |
1163 | idx = IOdemodFSK(BitStream,BitLen); | |
1164 | if (idx<0){ | |
1165 | if (g_debugMode){ | |
1166 | if (idx==-1){ | |
1167 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1168 | } else if (idx == -2) { | |
1169 | PrintAndLog("DEBUG: not enough samples"); | |
1170 | } else if (idx == -3) { | |
1171 | PrintAndLog("DEBUG: error during fskdemod"); | |
1172 | } else if (idx == -4) { | |
1173 | PrintAndLog("DEBUG: Preamble not found"); | |
1174 | } else if (idx == -5) { | |
1175 | PrintAndLog("DEBUG: Separator bits not found"); | |
1176 | } else { | |
1177 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1178 | } | |
1179 | } | |
1180 | return 0; | |
1181 | } | |
1182 | if (idx==0){ | |
2767fc02 | 1183 | if (g_debugMode){ |
e0165dcf | 1184 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); |
2767fc02 | 1185 | if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); |
e0165dcf | 1186 | } |
1187 | return 0; | |
1188 | } | |
1189 | //Index map | |
1190 | //0 10 20 30 40 50 60 | |
1191 | //| | | | | | | | |
1192 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
1193 | //----------------------------------------------------------------------------- | |
1194 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
1195 | // | |
1196 | //XSF(version)facility:codeone+codetwo (raw) | |
1197 | //Handle the data | |
1198 | if (idx+64>BitLen) { | |
2767fc02 | 1199 | if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen); |
e0165dcf | 1200 | return 0; |
1201 | } | |
1202 | 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]); | |
1203 | 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]); | |
1204 | 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]); | |
1205 | 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]); | |
1206 | 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]); | |
1207 | 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]); | |
1208 | 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]); | |
1209 | ||
1210 | uint32_t code = bytebits_to_byte(BitStream+idx,32); | |
1211 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); | |
1212 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 | |
1213 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
1214 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 | |
1215 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
1216 | uint16_t calccrc = 0; | |
1217 | ||
1218 | for (uint8_t i=1; i<6; ++i){ | |
1219 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
e0165dcf | 1220 | } |
1221 | calccrc &= 0xff; | |
1222 | calccrc = 0xff - calccrc; | |
1223 | ||
1224 | char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; | |
1225 | ||
1226 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
1227 | setDemodBuf(BitStream,64,idx); | |
1228 | if (g_debugMode){ | |
1229 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
1230 | printDemodBuff(); | |
1231 | } | |
1232 | return 1; | |
b3b70669 | 1233 | } |
1e090a61 | 1234 | |
1e090a61 | 1235 | //by marshmellow |
1236 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1237 | //print full AWID Prox ID and some bit format details if found | |
1238 | int CmdFSKdemodAWID(const char *Cmd) | |
1239 | { | |
1240 | ||
e0165dcf | 1241 | //int verbose=1; |
1242 | //sscanf(Cmd, "%i", &verbose); | |
1243 | ||
1244 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1245 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1246 | size_t size = getFromGraphBuf(BitStream); | |
1247 | if (size==0) return 0; | |
1248 | ||
1249 | //get binary from fsk wave | |
1250 | int idx = AWIDdemodFSK(BitStream, &size); | |
1251 | if (idx<=0){ | |
1252 | if (g_debugMode==1){ | |
1253 | if (idx == -1) | |
1254 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1255 | else if (idx == -2) | |
1256 | PrintAndLog("DEBUG: Error - only noise found"); | |
1257 | else if (idx == -3) | |
1258 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1259 | else if (idx == -4) | |
1260 | PrintAndLog("DEBUG: Error - AWID preamble not found"); | |
1261 | else if (idx == -5) | |
1262 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1263 | else | |
1264 | PrintAndLog("DEBUG: Error %d",idx); | |
1265 | } | |
1266 | return 0; | |
1267 | } | |
1268 | ||
1269 | // Index map | |
1270 | // 0 10 20 30 40 50 60 | |
1271 | // | | | | | | | | |
1272 | // 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 | |
1273 | // ----------------------------------------------------------------------------- | |
1274 | // 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 | |
1275 | // 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 | |
1276 | // |---26 bit---| |-----117----||-------------142-------------| | |
1277 | // b = format bit len, o = odd parity of last 3 bits | |
1278 | // f = facility code, c = card number | |
1279 | // w = wiegand parity | |
1280 | // (26 bit format shown) | |
1e090a61 | 1281 | |
e0165dcf | 1282 | //get raw ID before removing parities |
1283 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1284 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1285 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1286 | setDemodBuf(BitStream,96,idx); | |
1287 | ||
1288 | size = removeParity(BitStream, idx+8, 4, 1, 88); | |
1289 | if (size != 66){ | |
1290 | if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); | |
1291 | return 0; | |
1292 | } | |
1293 | // ok valid card found! | |
1294 | ||
1295 | // Index map | |
1296 | // 0 10 20 30 40 50 60 | |
1297 | // | | | | | | | | |
1298 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1299 | // ----------------------------------------------------------------------------- | |
1300 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1301 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1302 | // |26 bit| |-117--| |-----142------| | |
1303 | // b = format bit len, o = odd parity of last 3 bits | |
1304 | // f = facility code, c = card number | |
1305 | // w = wiegand parity | |
1306 | // (26 bit format shown) | |
1307 | ||
1308 | uint32_t fc = 0; | |
1309 | uint32_t cardnum = 0; | |
1310 | uint32_t code1 = 0; | |
1311 | uint32_t code2 = 0; | |
1312 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1313 | if (fmtLen==26){ | |
1314 | fc = bytebits_to_byte(BitStream+9, 8); | |
1315 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1316 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1317 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); | |
1318 | } else { | |
1319 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1320 | if (fmtLen>32){ | |
1321 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1322 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
1323 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); | |
1324 | } else{ | |
1325 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1326 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); | |
1327 | } | |
1328 | } | |
1329 | if (g_debugMode){ | |
1330 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1331 | printDemodBuff(); | |
1332 | } | |
1333 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands | |
1334 | return 1; | |
1e090a61 | 1335 | } |
1336 | ||
1337 | //by marshmellow | |
1338 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1339 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1340 | int CmdFSKdemodPyramid(const char *Cmd) | |
1341 | { | |
e0165dcf | 1342 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1343 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1344 | size_t size = getFromGraphBuf(BitStream); | |
1345 | if (size==0) return 0; | |
1346 | ||
1347 | //get binary from fsk wave | |
1348 | int idx = PyramiddemodFSK(BitStream, &size); | |
1349 | if (idx < 0){ | |
1350 | if (g_debugMode==1){ | |
1351 | if (idx == -5) | |
1352 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1353 | else if (idx == -1) | |
1354 | PrintAndLog("DEBUG: Error - only noise found"); | |
1355 | else if (idx == -2) | |
1356 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1357 | else if (idx == -3) | |
1358 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1359 | else if (idx == -4) | |
1360 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); | |
1361 | else | |
1362 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1363 | } | |
1364 | return 0; | |
1365 | } | |
1366 | // Index map | |
1367 | // 0 10 20 30 40 50 60 | |
1368 | // | | | | | | | | |
1369 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1370 | // ----------------------------------------------------------------------------- | |
1371 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1372 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1373 | ||
1374 | // 64 70 80 90 100 110 120 | |
1375 | // | | | | | | | | |
1376 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1377 | // ----------------------------------------------------------------------------- | |
1378 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1379 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1380 | // |---115---||---------71---------| | |
1381 | // s = format start bit, o = odd parity of last 7 bits | |
1382 | // f = facility code, c = card number | |
1383 | // w = wiegand parity, x = extra space for other formats | |
1384 | // p = unknown checksum | |
1385 | // (26 bit format shown) | |
1386 | ||
1387 | //get bytes for checksum calc | |
1388 | uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); | |
1389 | uint8_t csBuff[14] = {0x00}; | |
1390 | for (uint8_t i = 0; i < 13; i++){ | |
1391 | csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); | |
1392 | } | |
1393 | //check checksum calc | |
1394 | //checksum calc thanks to ICEMAN!! | |
1395 | uint32_t checkCS = CRC8Maxim(csBuff,13); | |
1396 | ||
1397 | //get raw ID before removing parities | |
1398 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1399 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1400 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1401 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
1402 | setDemodBuf(BitStream,128,idx); | |
1403 | ||
1404 | size = removeParity(BitStream, idx+8, 8, 1, 120); | |
1405 | if (size != 105){ | |
1406 | if (g_debugMode==1) | |
1407 | PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); | |
1408 | return 0; | |
1409 | } | |
1410 | ||
1411 | // ok valid card found! | |
1412 | ||
1413 | // Index map | |
1414 | // 0 10 20 30 40 50 60 70 | |
1415 | // | | | | | | | | | |
1416 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1417 | // ----------------------------------------------------------------------- | |
1418 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1419 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1420 | ||
1421 | // 71 80 90 100 | |
1422 | // | | | | | |
1423 | // 1 2 34567890 1234567890123456 7 8901234 | |
1424 | // --------------------------------------- | |
1425 | // 1 1 01110011 0000000001000110 0 1001010 | |
1426 | // s w ffffffff cccccccccccccccc w ppppppp | |
1427 | // |--115-| |------71------| | |
1428 | // s = format start bit, o = odd parity of last 7 bits | |
1429 | // f = facility code, c = card number | |
1430 | // w = wiegand parity, x = extra space for other formats | |
1431 | // p = unknown checksum | |
1432 | // (26 bit format shown) | |
1433 | ||
1434 | //find start bit to get fmtLen | |
1435 | int j; | |
1436 | for (j=0; j<size; j++){ | |
1437 | if(BitStream[j]) break; | |
1438 | } | |
1439 | uint8_t fmtLen = size-j-8; | |
1440 | uint32_t fc = 0; | |
1441 | uint32_t cardnum = 0; | |
1442 | uint32_t code1 = 0; | |
1443 | //uint32_t code2 = 0; | |
1444 | if (fmtLen==26){ | |
1445 | fc = bytebits_to_byte(BitStream+73, 8); | |
1446 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1447 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
1448 | 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); | |
1449 | } else if (fmtLen==45){ | |
1450 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1451 | fc = bytebits_to_byte(BitStream+53, 10); | |
1452 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
1453 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1454 | } else { | |
1455 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1456 | if (fmtLen>32){ | |
1457 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1458 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
1459 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1460 | } else{ | |
1461 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
1462 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1463 | } | |
1464 | } | |
1465 | if (checksum == checkCS) | |
1466 | PrintAndLog("Checksum %02x passed", checksum); | |
1467 | else | |
1468 | PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); | |
1469 | ||
1470 | if (g_debugMode){ | |
1471 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1472 | printDemodBuff(); | |
1473 | } | |
1474 | return 1; | |
1e090a61 | 1475 | } |
1476 | ||
e770c648 | 1477 | //by marshmellow |
1478 | //attempt to psk1 demod graph buffer | |
4ac906d1 | 1479 | int PSKDemod(const char *Cmd, bool verbose) |
e770c648 | 1480 | { |
e0165dcf | 1481 | int invert=0; |
1482 | int clk=0; | |
1483 | int maxErr=100; | |
1484 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1485 | if (clk==1){ | |
1486 | invert=1; | |
1487 | clk=0; | |
1488 | } | |
1489 | if (invert != 0 && invert != 1) { | |
1490 | if (verbose) PrintAndLog("Invalid argument: %s", Cmd); | |
1491 | return 0; | |
1492 | } | |
1493 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1494 | size_t BitLen = getFromGraphBuf(BitStream); | |
1495 | if (BitLen==0) return -1; | |
2eec55c8 | 1496 | uint8_t carrier=countFC(BitStream, BitLen, 0); |
e0165dcf | 1497 | if (carrier!=2 && carrier!=4 && carrier!=8){ |
1498 | //invalid carrier | |
1499 | return 0; | |
1500 | } | |
1501 | int errCnt=0; | |
1502 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
1503 | if (errCnt > maxErr){ | |
2767fc02 | 1504 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1505 | return 0; |
1506 | } | |
1507 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
2767fc02 | 1508 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1509 | return 0; |
1510 | } | |
2767fc02 | 1511 | if (verbose || g_debugMode){ |
1512 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 1513 | if (errCnt>0){ |
2767fc02 | 1514 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1515 | } |
1516 | } | |
1517 | //prime demod buffer for output | |
1518 | setDemodBuf(BitStream,BitLen,0); | |
1519 | return 1; | |
4118b74d | 1520 | } |
e770c648 | 1521 | |
4118b74d | 1522 | // Indala 26 bit decode |
1523 | // by marshmellow | |
1524 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1525 | int CmdIndalaDecode(const char *Cmd) | |
1526 | { | |
b4fb11ba | 1527 | int ans; |
1528 | if (strlen(Cmd)>0){ | |
1529 | ans = PSKDemod(Cmd, 0); | |
1530 | } else{ //default to RF/32 | |
1531 | ans = PSKDemod("32", 0); | |
1532 | } | |
4118b74d | 1533 | |
7a8a982b | 1534 | if (!ans){ |
ec75f5c1 | 1535 | if (g_debugMode==1) |
b4fb11ba | 1536 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1537 | return 0; |
1538 | } | |
1539 | uint8_t invert=0; | |
1540 | ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); | |
1541 | if (ans < 1) { | |
ec75f5c1 | 1542 | if (g_debugMode==1) |
b4fb11ba | 1543 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1544 | return -1; |
1545 | } | |
a1d17964 | 1546 | char showbits[251]={0x00}; |
84871873 | 1547 | if (invert) |
b4fb11ba | 1548 | if (g_debugMode==1) |
e0165dcf | 1549 | PrintAndLog("Had to invert bits"); |
ec75f5c1 | 1550 | |
ba1a299c | 1551 | //convert UID to HEX |
1552 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
1553 | int idx; | |
1554 | uid1=0; | |
1555 | uid2=0; | |
1556 | PrintAndLog("BitLen: %d",DemodBufferLen); | |
1557 | if (DemodBufferLen==64){ | |
1558 | for( idx=0; idx<64; idx++) { | |
1559 | uid1=(uid1<<1)|(uid2>>31); | |
1560 | if (DemodBuffer[idx] == 0) { | |
1561 | uid2=(uid2<<1)|0; | |
1562 | showbits[idx]='0'; | |
1563 | } else { | |
1564 | uid2=(uid2<<1)|1; | |
1565 | showbits[idx]='1'; | |
1566 | } | |
1567 | } | |
1568 | showbits[idx]='\0'; | |
1569 | PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); | |
1570 | } | |
1571 | else { | |
1572 | uid3=0; | |
1573 | uid4=0; | |
1574 | uid5=0; | |
1575 | uid6=0; | |
1576 | uid7=0; | |
1577 | for( idx=0; idx<DemodBufferLen; idx++) { | |
1578 | uid1=(uid1<<1)|(uid2>>31); | |
1579 | uid2=(uid2<<1)|(uid3>>31); | |
1580 | uid3=(uid3<<1)|(uid4>>31); | |
1581 | uid4=(uid4<<1)|(uid5>>31); | |
1582 | uid5=(uid5<<1)|(uid6>>31); | |
1583 | uid6=(uid6<<1)|(uid7>>31); | |
1584 | if (DemodBuffer[idx] == 0) { | |
1585 | uid7=(uid7<<1)|0; | |
1586 | showbits[idx]='0'; | |
1587 | } | |
1588 | else { | |
1589 | uid7=(uid7<<1)|1; | |
1590 | showbits[idx]='1'; | |
1591 | } | |
1592 | } | |
1593 | showbits[idx]='\0'; | |
1594 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); | |
1595 | } | |
b4fb11ba | 1596 | if (g_debugMode){ |
1597 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1598 | printDemodBuff(); | |
1599 | } | |
ba1a299c | 1600 | return 1; |
4118b74d | 1601 | } |
1602 | ||
04d2721b | 1603 | // by marshmellow |
e770c648 | 1604 | // takes 3 arguments - clock, invert, maxErr as integers |
1605 | // attempts to demodulate nrz only | |
1606 | // prints binary found and saves in demodbuffer for further commands | |
b4a2fcf6 | 1607 | |
1608 | int NRZrawDemod(const char *Cmd, bool verbose) | |
e770c648 | 1609 | { |
e0165dcf | 1610 | int invert=0; |
1611 | int clk=0; | |
1612 | int maxErr=100; | |
1613 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1614 | if (clk==1){ | |
1615 | invert=1; | |
1616 | clk=0; | |
1617 | } | |
1618 | if (invert != 0 && invert != 1) { | |
1619 | PrintAndLog("Invalid argument: %s", Cmd); | |
1620 | return 0; | |
1621 | } | |
1622 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1623 | size_t BitLen = getFromGraphBuf(BitStream); | |
1624 | if (BitLen==0) return 0; | |
1625 | int errCnt=0; | |
1626 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
1627 | if (errCnt > maxErr){ | |
1628 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1629 | return 0; | |
1630 | } | |
2eec55c8 | 1631 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
e0165dcf | 1632 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
1633 | return 0; | |
1634 | } | |
1635 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1636 | //prime demod buffer for output | |
1637 | setDemodBuf(BitStream,BitLen,0); | |
1638 | ||
2767fc02 | 1639 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1640 | if (verbose || g_debugMode) { |
1641 | PrintAndLog("NRZ demoded bitstream:"); | |
1642 | // Now output the bitstream to the scrollback by line of 16 bits | |
1643 | printDemodBuff(); | |
1644 | } | |
1645 | return 1; | |
b4a2fcf6 | 1646 | } |
1647 | ||
1648 | int CmdNRZrawDemod(const char *Cmd) | |
1649 | { | |
e0165dcf | 1650 | char cmdp = param_getchar(Cmd, 0); |
1651 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1652 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); | |
1653 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1654 | PrintAndLog(" <invert>, 1 for invert output"); | |
1655 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1656 | PrintAndLog(""); | |
1657 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
1658 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1659 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1660 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1661 | 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"); | |
1662 | return 0; | |
1663 | } | |
1664 | return NRZrawDemod(Cmd, TRUE); | |
e770c648 | 1665 | } |
1666 | ||
1667 | // by marshmellow | |
1668 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 1669 | // attempts to demodulate psk only |
1670 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1671 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1672 | { |
e0165dcf | 1673 | int ans; |
1674 | char cmdp = param_getchar(Cmd, 0); | |
1675 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1676 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); | |
1677 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1678 | PrintAndLog(" <invert>, 1 for invert output"); | |
1679 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1680 | PrintAndLog(""); | |
1681 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
1682 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1683 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1684 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1685 | 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"); | |
1686 | return 0; | |
1687 | } | |
1688 | ans = PSKDemod(Cmd, TRUE); | |
1689 | //output | |
1690 | if (!ans){ | |
1691 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1692 | return 0; | |
1693 | } | |
7a8a982b | 1694 | |
2767fc02 | 1695 | PrintAndLog("PSK1 demoded bitstream:"); |
e0165dcf | 1696 | // Now output the bitstream to the scrollback by line of 16 bits |
1697 | printDemodBuff(); | |
1698 | return 1; | |
4118b74d | 1699 | } |
1700 | ||
04d2721b | 1701 | // by marshmellow |
19ff0210 | 1702 | // takes same args as cmdpsk1rawdemod |
04d2721b | 1703 | int CmdPSK2rawDemod(const char *Cmd) |
1704 | { | |
e0165dcf | 1705 | int ans=0; |
1706 | char cmdp = param_getchar(Cmd, 0); | |
1707 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1708 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); | |
1709 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1710 | PrintAndLog(" <invert>, 1 for invert output"); | |
1711 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1712 | PrintAndLog(""); | |
1713 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1714 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1715 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1716 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1717 | 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"); | |
1718 | return 0; | |
1719 | } | |
1720 | ans=PSKDemod(Cmd, TRUE); | |
1721 | if (!ans){ | |
1722 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1723 | return 0; | |
1724 | } | |
1725 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1726 | PrintAndLog("PSK2 demoded bitstream:"); | |
1727 | // Now output the bitstream to the scrollback by line of 16 bits | |
1728 | printDemodBuff(); | |
1729 | return 1; | |
04d2721b | 1730 | } |
1731 | ||
19ff0210 | 1732 | // by marshmellow - combines all raw demod functions into one menu command |
1733 | int CmdRawDemod(const char *Cmd) | |
1734 | { | |
1735 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1736 | ||
23f0a7d8 | 1737 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { |
19ff0210 | 1738 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); |
b41534d1 | 1739 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
1740 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 1741 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
1742 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1743 | PrintAndLog(""); | |
1fbf8956 | 1744 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); |
19ff0210 | 1745 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); |
b41534d1 | 1746 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 1747 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
1748 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1749 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1750 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1751 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1752 | return 0; | |
1753 | } | |
1754 | char cmdp2 = Cmd[1]; | |
1755 | int ans = 0; | |
1756 | if (cmdp == 'f' && cmdp2 == 's'){ | |
f8f894a5 | 1757 | ans = CmdFSKrawdemod(Cmd+2); |
b41534d1 | 1758 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
f8f894a5 | 1759 | ans = Cmdaskbiphdemod(Cmd+2); |
19ff0210 | 1760 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
f8f894a5 | 1761 | ans = Cmdaskmandemod(Cmd+2); |
19ff0210 | 1762 | } else if(cmdp == 'a' && cmdp2 == 'r'){ |
f8f894a5 | 1763 | ans = Cmdaskrawdemod(Cmd+2); |
19ff0210 | 1764 | } else if(cmdp == 'n' && cmdp2 == 'r'){ |
f8f894a5 | 1765 | ans = CmdNRZrawDemod(Cmd+2); |
19ff0210 | 1766 | } else if(cmdp == 'p' && cmdp2 == '1'){ |
f8f894a5 | 1767 | ans = CmdPSK1rawDemod(Cmd+2); |
19ff0210 | 1768 | } else if(cmdp == 'p' && cmdp2 == '2'){ |
f8f894a5 | 1769 | ans = CmdPSK2rawDemod(Cmd+2); |
19ff0210 | 1770 | } else { |
1771 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1772 | } | |
1773 | return ans; | |
1774 | } | |
1775 | ||
7fe9b0b7 | 1776 | int CmdGrid(const char *Cmd) |
1777 | { | |
e0165dcf | 1778 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); |
1779 | PlotGridXdefault= PlotGridX; | |
1780 | PlotGridYdefault= PlotGridY; | |
1781 | RepaintGraphWindow(); | |
1782 | return 0; | |
7fe9b0b7 | 1783 | } |
1784 | ||
1785 | int CmdHexsamples(const char *Cmd) | |
1786 | { | |
e0165dcf | 1787 | int i, j; |
1788 | int requested = 0; | |
1789 | int offset = 0; | |
1790 | char string_buf[25]; | |
1791 | char* string_ptr = string_buf; | |
1792 | uint8_t got[BIGBUF_SIZE]; | |
1793 | ||
1794 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1795 | ||
1796 | /* if no args send something */ | |
1797 | if (requested == 0) { | |
1798 | requested = 8; | |
1799 | } | |
1800 | if (offset + requested > sizeof(got)) { | |
1801 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1802 | return 0; | |
1803 | } | |
1804 | ||
1805 | GetFromBigBuf(got,requested,offset); | |
1806 | WaitForResponse(CMD_ACK,NULL); | |
1807 | ||
1808 | i = 0; | |
1809 | for (j = 0; j < requested; j++) { | |
1810 | i++; | |
1811 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1812 | if (i == 8) { | |
1813 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1814 | PrintAndLog("%s", string_buf); | |
1815 | string_buf[0] = '\0'; | |
1816 | string_ptr = string_buf; | |
1817 | i = 0; | |
1818 | } | |
1819 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1820 | *(string_ptr - 1) = '\0'; | |
1821 | PrintAndLog("%s", string_buf); | |
1822 | string_buf[0] = '\0'; | |
1823 | } | |
1824 | } | |
1825 | return 0; | |
7fe9b0b7 | 1826 | } |
1827 | ||
7fe9b0b7 | 1828 | int CmdHide(const char *Cmd) |
1829 | { | |
e0165dcf | 1830 | HideGraphWindow(); |
1831 | return 0; | |
7fe9b0b7 | 1832 | } |
1833 | ||
78f5b1a7 | 1834 | //zero mean GraphBuffer |
7fe9b0b7 | 1835 | int CmdHpf(const char *Cmd) |
1836 | { | |
e0165dcf | 1837 | int i; |
1838 | int accum = 0; | |
7fe9b0b7 | 1839 | |
e0165dcf | 1840 | for (i = 10; i < GraphTraceLen; ++i) |
1841 | accum += GraphBuffer[i]; | |
1842 | accum /= (GraphTraceLen - 10); | |
1843 | for (i = 0; i < GraphTraceLen; ++i) | |
1844 | GraphBuffer[i] -= accum; | |
7fe9b0b7 | 1845 | |
e0165dcf | 1846 | RepaintGraphWindow(); |
1847 | return 0; | |
7fe9b0b7 | 1848 | } |
f6d9fb17 MHS |
1849 | typedef struct { |
1850 | uint8_t * buffer; | |
1851 | uint32_t numbits; | |
1852 | uint32_t position; | |
1853 | }BitstreamOut; | |
1854 | ||
1855 | bool _headBit( BitstreamOut *stream) | |
1856 | { | |
1857 | int bytepos = stream->position >> 3; // divide by 8 | |
1858 | int bitpos = (stream->position++) & 7; // mask out 00000111 | |
1859 | return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; | |
1860 | } | |
1861 | ||
1862 | uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) | |
1863 | { | |
1864 | int i; | |
1865 | uint8_t val = 0; | |
1866 | for(i =0 ; i < bits_per_sample; i++) | |
1867 | { | |
1868 | val |= (_headBit(b) << (7-i)); | |
1869 | } | |
1870 | return val; | |
1871 | } | |
7fe9b0b7 | 1872 | |
1fbf8956 | 1873 | int getSamples(const char *Cmd, bool silent) |
7fe9b0b7 | 1874 | { |
e0165dcf | 1875 | //If we get all but the last byte in bigbuf, |
1876 | // we don't have to worry about remaining trash | |
1877 | // in the last byte in case the bits-per-sample | |
1878 | // does not line up on byte boundaries | |
1879 | ||
1880 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1881 | ||
1882 | int n = strtol(Cmd, NULL, 0); | |
1883 | ||
1884 | if (n == 0) | |
1885 | n = sizeof(got); | |
1886 | ||
1887 | if (n > sizeof(got)) | |
1888 | n = sizeof(got); | |
1889 | ||
1890 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
1891 | GetFromBigBuf(got,n,0); | |
1892 | PrintAndLog("Data fetched"); | |
1893 | UsbCommand response; | |
1894 | WaitForResponse(CMD_ACK, &response); | |
1895 | uint8_t bits_per_sample = 8; | |
1896 | ||
1897 | //Old devices without this feature would send 0 at arg[0] | |
1898 | if(response.arg[0] > 0) | |
1899 | { | |
1900 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1901 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1902 | , sc->decimation); | |
1903 | bits_per_sample = sc->bits_per_sample; | |
1904 | } | |
1905 | if(bits_per_sample < 8) | |
1906 | { | |
1907 | PrintAndLog("Unpacking..."); | |
1908 | BitstreamOut bout = { got, bits_per_sample * n, 0}; | |
1909 | int j =0; | |
1910 | for (j = 0; j * bits_per_sample < n * 8 && j < sizeof(GraphBuffer); j++) { | |
1911 | uint8_t sample = getByte(bits_per_sample, &bout); | |
1912 | GraphBuffer[j] = ((int) sample )- 128; | |
1913 | } | |
1914 | GraphTraceLen = j; | |
1915 | PrintAndLog("Unpacked %d samples" , j ); | |
1916 | }else | |
1917 | { | |
1918 | for (int j = 0; j < n; j++) { | |
1919 | GraphBuffer[j] = ((int)got[j]) - 128; | |
1920 | } | |
1921 | GraphTraceLen = n; | |
1922 | } | |
1923 | ||
1924 | RepaintGraphWindow(); | |
1925 | return 0; | |
1fbf8956 | 1926 | } |
1927 | ||
1928 | int CmdSamples(const char *Cmd) | |
1929 | { | |
e0165dcf | 1930 | return getSamples(Cmd, false); |
7fe9b0b7 | 1931 | } |
1932 | ||
d6a120a2 MHS |
1933 | int CmdTuneSamples(const char *Cmd) |
1934 | { | |
3aa4014b | 1935 | int timeout = 0; |
1936 | printf("\nMeasuring antenna characteristics, please wait..."); | |
ba1a299c | 1937 | |
3aa4014b | 1938 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; |
1939 | SendCommand(&c); | |
1940 | ||
1941 | UsbCommand resp; | |
1942 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1943 | timeout++; | |
1944 | printf("."); | |
1945 | if (timeout > 7) { | |
1946 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1947 | return 1; | |
1948 | } | |
1949 | } | |
1950 | ||
1951 | int peakv, peakf; | |
1952 | int vLf125, vLf134, vHf; | |
1953 | vLf125 = resp.arg[0] & 0xffff; | |
1954 | vLf134 = resp.arg[0] >> 16; | |
1955 | vHf = resp.arg[1] & 0xffff;; | |
1956 | peakf = resp.arg[2] & 0xffff; | |
1957 | peakv = resp.arg[2] >> 16; | |
1958 | PrintAndLog(""); | |
1959 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1960 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1961 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1962 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 1963 | |
2767fc02 | 1964 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. |
1965 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
1966 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1967 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
0d0d0499 | 1968 | |
1969 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 1970 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 1971 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 1972 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 1973 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 1974 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 1975 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 1976 | PrintAndLog("# Your HF antenna is marginal."); |
1977 | ||
0d0d0499 | 1978 | if (peakv >= LF_UNUSABLE_V) { |
1979 | for (int i = 0; i < 256; i++) { | |
1980 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
1981 | } | |
1982 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
1983 | PrintAndLog("\n"); | |
1984 | GraphTraceLen = 256; | |
1985 | ShowGraphWindow(); | |
abd16c45 | 1986 | RepaintGraphWindow(); |
ba1a299c | 1987 | } |
1988 | ||
b4fb11ba | 1989 | return 0; |
d6a120a2 MHS |
1990 | } |
1991 | ||
3aa4014b | 1992 | |
7fe9b0b7 | 1993 | int CmdLoad(const char *Cmd) |
1994 | { | |
e0165dcf | 1995 | char filename[FILE_PATH_SIZE] = {0x00}; |
1996 | int len = 0; | |
b915fda3 | 1997 | |
e0165dcf | 1998 | len = strlen(Cmd); |
1999 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2000 | memcpy(filename, Cmd, len); | |
b915fda3 | 2001 | |
e0165dcf | 2002 | FILE *f = fopen(filename, "r"); |
2003 | if (!f) { | |
2004 | PrintAndLog("couldn't open '%s'", filename); | |
2005 | return 0; | |
2006 | } | |
2007 | ||
2008 | GraphTraceLen = 0; | |
2009 | char line[80]; | |
2010 | while (fgets(line, sizeof (line), f)) { | |
2011 | GraphBuffer[GraphTraceLen] = atoi(line); | |
2012 | GraphTraceLen++; | |
2013 | } | |
2014 | fclose(f); | |
2015 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
2016 | RepaintGraphWindow(); | |
2017 | return 0; | |
7fe9b0b7 | 2018 | } |
2019 | ||
2020 | int CmdLtrim(const char *Cmd) | |
2021 | { | |
e0165dcf | 2022 | int ds = atoi(Cmd); |
7fe9b0b7 | 2023 | |
e0165dcf | 2024 | for (int i = ds; i < GraphTraceLen; ++i) |
2025 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
2026 | GraphTraceLen -= ds; | |
7fe9b0b7 | 2027 | |
e0165dcf | 2028 | RepaintGraphWindow(); |
2029 | return 0; | |
7fe9b0b7 | 2030 | } |
ec75f5c1 | 2031 | |
2032 | // trim graph to input argument length | |
9ec1416a | 2033 | int CmdRtrim(const char *Cmd) |
2034 | { | |
e0165dcf | 2035 | int ds = atoi(Cmd); |
9ec1416a | 2036 | |
e0165dcf | 2037 | GraphTraceLen = ds; |
9ec1416a | 2038 | |
e0165dcf | 2039 | RepaintGraphWindow(); |
2040 | return 0; | |
9ec1416a | 2041 | } |
7fe9b0b7 | 2042 | |
7fe9b0b7 | 2043 | int CmdNorm(const char *Cmd) |
2044 | { | |
e0165dcf | 2045 | int i; |
2046 | int max = INT_MIN, min = INT_MAX; | |
7fe9b0b7 | 2047 | |
e0165dcf | 2048 | for (i = 10; i < GraphTraceLen; ++i) { |
2049 | if (GraphBuffer[i] > max) | |
2050 | max = GraphBuffer[i]; | |
2051 | if (GraphBuffer[i] < min) | |
2052 | min = GraphBuffer[i]; | |
2053 | } | |
7fe9b0b7 | 2054 | |
e0165dcf | 2055 | if (max != min) { |
2056 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 2057 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
e0165dcf | 2058 | (max - min); |
ba1a299c | 2059 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
e0165dcf | 2060 | } |
2061 | } | |
2062 | RepaintGraphWindow(); | |
2063 | return 0; | |
7fe9b0b7 | 2064 | } |
2065 | ||
2066 | int CmdPlot(const char *Cmd) | |
2067 | { | |
e0165dcf | 2068 | ShowGraphWindow(); |
2069 | return 0; | |
7fe9b0b7 | 2070 | } |
2071 | ||
2072 | int CmdSave(const char *Cmd) | |
2073 | { | |
e0165dcf | 2074 | char filename[FILE_PATH_SIZE] = {0x00}; |
2075 | int len = 0; | |
b915fda3 | 2076 | |
e0165dcf | 2077 | len = strlen(Cmd); |
2078 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2079 | memcpy(filename, Cmd, len); | |
2080 | ||
b915fda3 | 2081 | |
e0165dcf | 2082 | FILE *f = fopen(filename, "w"); |
2083 | if(!f) { | |
2084 | PrintAndLog("couldn't open '%s'", filename); | |
2085 | return 0; | |
2086 | } | |
2087 | int i; | |
2088 | for (i = 0; i < GraphTraceLen; i++) { | |
2089 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2090 | } | |
2091 | fclose(f); | |
2092 | PrintAndLog("saved to '%s'", Cmd); | |
2093 | return 0; | |
7fe9b0b7 | 2094 | } |
2095 | ||
2096 | int CmdScale(const char *Cmd) | |
2097 | { | |
e0165dcf | 2098 | CursorScaleFactor = atoi(Cmd); |
2099 | if (CursorScaleFactor == 0) { | |
2100 | PrintAndLog("bad, can't have zero scale"); | |
2101 | CursorScaleFactor = 1; | |
2102 | } | |
2103 | RepaintGraphWindow(); | |
2104 | return 0; | |
7fe9b0b7 | 2105 | } |
2106 | ||
d51b2eda MHS |
2107 | int CmdDirectionalThreshold(const char *Cmd) |
2108 | { | |
e0165dcf | 2109 | int8_t upThres = param_get8(Cmd, 0); |
2110 | int8_t downThres = param_get8(Cmd, 1); | |
2111 | ||
2112 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
2113 | ||
2114 | int lastValue = GraphBuffer[0]; | |
2115 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
2116 | ||
2117 | for (int i = 1; i < GraphTraceLen; ++i) { | |
2118 | // Apply first threshold to samples heading up | |
2119 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2120 | { | |
2121 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2122 | GraphBuffer[i] = 1; | |
2123 | } | |
2124 | // Apply second threshold to samples heading down | |
2125 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2126 | { | |
2127 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2128 | GraphBuffer[i] = -1; | |
2129 | } | |
2130 | else | |
2131 | { | |
2132 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2133 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2134 | ||
2135 | } | |
2136 | } | |
2137 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2138 | RepaintGraphWindow(); | |
2139 | return 0; | |
d51b2eda MHS |
2140 | } |
2141 | ||
7fe9b0b7 | 2142 | int CmdZerocrossings(const char *Cmd) |
2143 | { | |
e0165dcf | 2144 | // Zero-crossings aren't meaningful unless the signal is zero-mean. |
2145 | CmdHpf(""); | |
2146 | ||
2147 | int sign = 1; | |
2148 | int zc = 0; | |
2149 | int lastZc = 0; | |
2150 | ||
2151 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2152 | if (GraphBuffer[i] * sign >= 0) { | |
2153 | // No change in sign, reproduce the previous sample count. | |
2154 | zc++; | |
2155 | GraphBuffer[i] = lastZc; | |
2156 | } else { | |
2157 | // Change in sign, reset the sample count. | |
2158 | sign = -sign; | |
2159 | GraphBuffer[i] = lastZc; | |
2160 | if (sign > 0) { | |
2161 | lastZc = zc; | |
2162 | zc = 0; | |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | ||
2167 | RepaintGraphWindow(); | |
2168 | return 0; | |
7fe9b0b7 | 2169 | } |
2170 | ||
ba1a299c | 2171 | static command_t CommandTable[] = |
7fe9b0b7 | 2172 | { |
e0165dcf | 2173 | {"help", CmdHelp, 1, "This help"}, |
e0165dcf | 2174 | {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 25)"}, |
2175 | {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"}, | |
2176 | {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, | |
2177 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, | |
1f918317 | 2178 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
e0165dcf | 2179 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
e0165dcf | 2180 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
2181 | {"dec", CmdDec, 1, "Decimate samples"}, | |
2182 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
e0165dcf | 2183 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, |
2184 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
2185 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, | |
2186 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, | |
2187 | {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, | |
2188 | {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, | |
2189 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
2190 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
2191 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
2192 | {"hide", CmdHide, 1, "Hide graph window"}, | |
2193 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
2194 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
2195 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
2196 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
1f918317 | 2197 | {"manrawdecode", Cmdmandecoderaw, 1, "[maxErr] -- Manchester decode binary stream in DemodBuffer"}, |
e0165dcf | 2198 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
2199 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
2200 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] -- print the data in the DemodBuffer - 'x' for hex output"}, | |
2201 | {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, | |
2202 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, | |
2203 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
2204 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
2205 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
2206 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, | |
2207 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
e0165dcf | 2208 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
2209 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
2210 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
2211 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
2212 | {NULL, NULL, 0, NULL} | |
7fe9b0b7 | 2213 | }; |
2214 | ||
2215 | int CmdData(const char *Cmd) | |
2216 | { | |
e0165dcf | 2217 | CmdsParse(CommandTable, Cmd); |
2218 | return 0; | |
7fe9b0b7 | 2219 | } |
2220 | ||
2221 | int CmdHelp(const char *Cmd) | |
2222 | { | |
e0165dcf | 2223 | CmdsHelp(CommandTable); |
2224 | return 0; | |
7fe9b0b7 | 2225 | } |