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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" |
6eaa8da9 | 26 | #include "crc16.h" |
31abe49f | 27 | |
4118b74d | 28 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
ec75f5c1 | 29 | uint8_t g_debugMode; |
2b3af97d | 30 | size_t DemodBufferLen; |
7fe9b0b7 | 31 | static int CmdHelp(const char *Cmd); |
32 | ||
4118b74d | 33 | //set the demod buffer with given array of binary (one bit per byte) |
34 | //by marshmellow | |
ec75f5c1 | 35 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 36 | { |
13d77ef9 | 37 | if (buff == NULL) |
38 | return; | |
39 | ||
40 | if ( size >= MAX_DEMOD_BUF_LEN) | |
41 | size = MAX_DEMOD_BUF_LEN; | |
42 | ||
ec75f5c1 | 43 | size_t i = 0; |
8e2e6c8e | 44 | for (; i < size; i++){ |
ec75f5c1 | 45 | DemodBuffer[i]=buff[startIdx++]; |
ba1a299c | 46 | } |
47 | DemodBufferLen=size; | |
48 | return; | |
4118b74d | 49 | } |
50 | ||
ec75f5c1 | 51 | int CmdSetDebugMode(const char *Cmd) |
52 | { | |
e0165dcf | 53 | int demod=0; |
54 | sscanf(Cmd, "%i", &demod); | |
55 | g_debugMode=(uint8_t)demod; | |
56 | return 1; | |
ec75f5c1 | 57 | } |
58 | ||
979bba37 | 59 | int usage_data_printdemodbuf(){ |
60 | PrintAndLog("Usage: data printdemodbuffer x o <offset>"); | |
61 | PrintAndLog("Options: "); | |
62 | PrintAndLog(" h This help"); | |
63 | PrintAndLog(" x output in hex (omit for binary output)"); | |
64 | PrintAndLog(" o <offset> enter offset in # of bits"); | |
65 | return 0; | |
66 | } | |
67 | ||
4118b74d | 68 | //by marshmellow |
abd6112f | 69 | void printDemodBuff(void) |
4118b74d | 70 | { |
ba1a299c | 71 | int bitLen = DemodBufferLen; |
2767fc02 | 72 | if (bitLen<1) { |
ba1a299c | 73 | PrintAndLog("no bits found in demod buffer"); |
74 | return; | |
75 | } | |
76 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
e0165dcf | 77 | |
2767fc02 | 78 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); |
79 | PrintAndLog("%s",bin); | |
80 | ||
ba1a299c | 81 | return; |
4118b74d | 82 | } |
83 | ||
8d960002 | 84 | int CmdPrintDemodBuff(const char *Cmd) |
85 | { | |
979bba37 | 86 | char hex[512]={0x00}; |
87 | bool hexMode = false; | |
88 | bool errors = false; | |
89 | uint8_t offset = 0; | |
90 | char cmdp = 0; | |
91 | while(param_getchar(Cmd, cmdp) != 0x00) | |
92 | { | |
93 | switch(param_getchar(Cmd, cmdp)) | |
94 | { | |
95 | case 'h': | |
96 | case 'H': | |
97 | return usage_data_printdemodbuf(); | |
98 | case 'x': | |
99 | case 'X': | |
100 | hexMode = true; | |
101 | cmdp++; | |
102 | break; | |
103 | case 'o': | |
104 | case 'O': | |
105 | offset = param_get8(Cmd, cmdp+1); | |
106 | if (!offset) errors = true; | |
107 | cmdp += 2; | |
108 | break; | |
109 | default: | |
110 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
111 | errors = true; | |
112 | break; | |
113 | } | |
114 | if(errors) break; | |
e0165dcf | 115 | } |
979bba37 | 116 | //Validations |
117 | if(errors) return usage_data_printdemodbuf(); | |
118 | ||
119 | int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string | |
120 | ||
121 | if (hexMode){ | |
185e038c | 122 | char *buf = (char *) (DemodBuffer + offset); |
979bba37 | 123 | numBits = binarraytohex(hex, buf, numBits); |
e0165dcf | 124 | if (numBits==0) return 0; |
979bba37 | 125 | PrintAndLog("DemodBuffer: %s",hex); |
e0165dcf | 126 | } else { |
979bba37 | 127 | //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset); |
128 | char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16); | |
129 | PrintAndLog("DemodBuffer:\n%s",bin); | |
e0165dcf | 130 | } |
131 | return 1; | |
8d960002 | 132 | } |
7fe9b0b7 | 133 | |
2767fc02 | 134 | //by marshmellow |
78f5b1a7 | 135 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer |
136 | int CmdGetBitStream(const char *Cmd) | |
137 | { | |
e0165dcf | 138 | int i; |
139 | CmdHpf(Cmd); | |
140 | for (i = 0; i < GraphTraceLen; i++) { | |
141 | if (GraphBuffer[i] >= 1) { | |
142 | GraphBuffer[i] = 1; | |
143 | } else { | |
144 | GraphBuffer[i] = 0; | |
145 | } | |
146 | } | |
147 | RepaintGraphWindow(); | |
148 | return 0; | |
78f5b1a7 | 149 | } |
150 | ||
d5a72d2f | 151 | //by marshmellow |
abd6112f | 152 | //print 64 bit EM410x ID in multiple formats |
b41534d1 | 153 | void printEM410x(uint32_t hi, uint64_t id) |
2fc2150e | 154 | { |
e0165dcf | 155 | if (id || hi){ |
156 | uint64_t iii=1; | |
157 | uint64_t id2lo=0; | |
158 | uint32_t ii=0; | |
159 | uint32_t i=0; | |
160 | for (ii=5; ii>0;ii--){ | |
161 | for (i=0;i<8;i++){ | |
162 | id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8))); | |
163 | } | |
164 | } | |
165 | if (hi){ | |
166 | //output 88 bit em id | |
2767fc02 | 167 | PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id); |
e0165dcf | 168 | } else{ |
169 | //output 40 bit em id | |
2767fc02 | 170 | PrintAndLog("\nEM TAG ID : %010llX", id); |
171 | PrintAndLog("Unique TAG ID : %010llX", id2lo); | |
e0165dcf | 172 | PrintAndLog("\nPossible de-scramble patterns"); |
173 | PrintAndLog("HoneyWell IdentKey {"); | |
174 | PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); | |
175 | PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF); | |
176 | PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); | |
177 | PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF)); | |
178 | PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF)); | |
179 | PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF)); | |
180 | PrintAndLog("DEZ 14/IK2 : %014lld",id); | |
181 | PrintAndLog("DEZ 15/IK3 : %015lld",id2lo); | |
182 | PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld", | |
183 | (id2lo & 0xf000000000) >> 36, | |
184 | (id2lo & 0x0f00000000) >> 32, | |
185 | (id2lo & 0x00f0000000) >> 28, | |
186 | (id2lo & 0x000f000000) >> 24, | |
187 | (id2lo & 0x0000f00000) >> 20, | |
188 | (id2lo & 0x00000f0000) >> 16, | |
189 | (id2lo & 0x000000f000) >> 12, | |
190 | (id2lo & 0x0000000f00) >> 8, | |
191 | (id2lo & 0x00000000f0) >> 4, | |
192 | (id2lo & 0x000000000f) | |
193 | ); | |
194 | uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00; | |
195 | PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF)); | |
2767fc02 | 196 | PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton); |
e0165dcf | 197 | |
198 | uint32_t p1id = (id & 0xFFFFFF); | |
199 | uint8_t arr[32] = {0x00}; | |
200 | int i =0; | |
201 | int j = 23; | |
202 | for (; i < 24; ++i, --j ){ | |
203 | arr[i] = (p1id >> i) & 1; | |
204 | } | |
205 | ||
206 | uint32_t p1 = 0; | |
207 | ||
208 | p1 |= arr[23] << 21; | |
209 | p1 |= arr[22] << 23; | |
210 | p1 |= arr[21] << 20; | |
211 | p1 |= arr[20] << 22; | |
212 | ||
213 | p1 |= arr[19] << 18; | |
214 | p1 |= arr[18] << 16; | |
215 | p1 |= arr[17] << 19; | |
216 | p1 |= arr[16] << 17; | |
217 | ||
218 | p1 |= arr[15] << 13; | |
219 | p1 |= arr[14] << 15; | |
220 | p1 |= arr[13] << 12; | |
221 | p1 |= arr[12] << 14; | |
222 | ||
223 | p1 |= arr[11] << 6; | |
224 | p1 |= arr[10] << 2; | |
225 | p1 |= arr[9] << 7; | |
226 | p1 |= arr[8] << 1; | |
227 | ||
228 | p1 |= arr[7] << 0; | |
229 | p1 |= arr[6] << 8; | |
230 | p1 |= arr[5] << 11; | |
231 | p1 |= arr[4] << 3; | |
232 | ||
233 | p1 |= arr[3] << 10; | |
234 | p1 |= arr[2] << 4; | |
235 | p1 |= arr[1] << 5; | |
236 | p1 |= arr[0] << 9; | |
2767fc02 | 237 | PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1); |
e0165dcf | 238 | |
239 | uint16_t sebury1 = id & 0xFFFF; | |
240 | uint8_t sebury2 = (id >> 16) & 0x7F; | |
241 | uint32_t sebury3 = id & 0x7FFFFF; | |
2767fc02 | 242 | PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3); |
e0165dcf | 243 | } |
244 | } | |
245 | return; | |
eb191de6 | 246 | } |
247 | ||
fef74fdc | 248 | int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo ) |
13d77ef9 | 249 | { |
fef74fdc | 250 | size_t idx = 0; |
251 | size_t BitLen = DemodBufferLen; | |
252 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
253 | memcpy(BitStream, DemodBuffer, BitLen); | |
254 | if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){ | |
255 | //set GraphBuffer for clone or sim command | |
256 | setDemodBuf(BitStream, BitLen, idx); | |
e0165dcf | 257 | if (g_debugMode){ |
fef74fdc | 258 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); |
e0165dcf | 259 | printDemodBuff(); |
260 | } | |
fef74fdc | 261 | if (verbose){ |
262 | PrintAndLog("EM410x pattern found: "); | |
263 | printEM410x(*hi, *lo); | |
264 | } | |
e0165dcf | 265 | return 1; |
266 | } | |
267 | return 0; | |
13d77ef9 | 268 | } |
fef74fdc | 269 | |
270 | int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose) | |
271 | { | |
272 | if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0; | |
273 | return AskEm410xDecode(verbose, hi, lo); | |
274 | } | |
275 | ||
e888ed8e | 276 | //by marshmellow |
e770c648 | 277 | //takes 3 arguments - clock, invert and maxErr as integers |
278 | //attempts to demodulate ask while decoding manchester | |
279 | //prints binary found and saves in graphbuffer for further commands | |
280 | int CmdAskEM410xDemod(const char *Cmd) | |
281 | { | |
e0165dcf | 282 | char cmdp = param_getchar(Cmd, 0); |
283 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
284 | PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]"); | |
285 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
286 | PrintAndLog(" <invert>, 1 for invert output"); | |
287 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
288 | PrintAndLog(""); | |
289 | PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer"); | |
290 | PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32"); | |
291 | PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data"); | |
292 | PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data"); | |
293 | 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"); | |
294 | return 0; | |
295 | } | |
e0165dcf | 296 | uint64_t lo = 0; |
fef74fdc | 297 | uint32_t hi = 0; |
298 | return AskEm410xDemod(Cmd, &hi, &lo, true); | |
e770c648 | 299 | } |
300 | ||
fef74fdc | 301 | //by marshmellow |
302 | //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
303 | // (amp may not be needed anymore) | |
304 | //verbose will print results and demoding messages | |
305 | //emSearch will auto search for EM410x format in bitstream | |
306 | //askType switches decode: ask/raw = 0, ask/manchester = 1 | |
307 | int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) | |
e888ed8e | 308 | { |
e0165dcf | 309 | int invert=0; |
310 | int clk=0; | |
311 | int maxErr=100; | |
fef74fdc | 312 | int maxLen=0; |
313 | uint8_t askAmp = 0; | |
314 | char amp = param_getchar(Cmd, 0); | |
e0165dcf | 315 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
fef74fdc | 316 | sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &); |
317 | if (!maxLen) maxLen = 512*64; | |
e0165dcf | 318 | if (invert != 0 && invert != 1) { |
319 | PrintAndLog("Invalid argument: %s", Cmd); | |
320 | return 0; | |
321 | } | |
322 | if (clk==1){ | |
323 | invert=1; | |
324 | clk=0; | |
325 | } | |
fef74fdc | 326 | if (amp == 'a' || amp == 'A') askAmp=1; |
e0165dcf | 327 | size_t BitLen = getFromGraphBuf(BitStream); |
2767fc02 | 328 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
fef74fdc | 329 | if (BitLen<255) return 0; |
23f0a7d8 | 330 | if (maxLen<BitLen && maxLen != 0) BitLen = maxLen; |
fef74fdc | 331 | |
332 | int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType); | |
333 | if (errCnt<0 || BitLen<16){ //if fatal error (or -1) | |
2767fc02 | 334 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); |
e0165dcf | 335 | return 0; |
336 | } | |
2767fc02 | 337 | if (errCnt>maxErr){ |
338 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); | |
339 | return 0; | |
340 | } | |
341 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 342 | |
343 | //output | |
e0165dcf | 344 | setDemodBuf(BitStream,BitLen,0); |
fef74fdc | 345 | if (verbose || g_debugMode){ |
346 | if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
8e2e6c8e | 347 | if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk); |
348 | else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk); | |
fef74fdc | 349 | // Now output the bitstream to the scrollback by line of 16 bits |
350 | printDemodBuff(); | |
351 | ||
352 | } | |
353 | uint64_t lo = 0; | |
354 | uint32_t hi = 0; | |
e0165dcf | 355 | if (emSearch){ |
fef74fdc | 356 | AskEm410xDecode(true, &hi, &lo); |
e0165dcf | 357 | } |
358 | return 1; | |
eb191de6 | 359 | } |
360 | ||
4ac906d1 | 361 | //by marshmellow |
fef74fdc | 362 | //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a' |
4ac906d1 | 363 | //attempts to demodulate ask while decoding manchester |
364 | //prints binary found and saves in graphbuffer for further commands | |
365 | int Cmdaskmandemod(const char *Cmd) | |
366 | { | |
e0165dcf | 367 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 368 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { |
369 | PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]"); | |
370 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
371 | PrintAndLog(" <invert>, 1 to invert output"); | |
372 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
373 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
374 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
e0165dcf | 375 | PrintAndLog(""); |
376 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
377 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
378 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
379 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
380 | 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"); | |
381 | return 0; | |
382 | } | |
fef74fdc | 383 | return ASKDemod(Cmd, TRUE, TRUE, 1); |
4ac906d1 | 384 | } |
385 | ||
eb191de6 | 386 | //by marshmellow |
d5a72d2f | 387 | //manchester decode |
eb191de6 | 388 | //stricktly take 10 and 01 and convert to 0 and 1 |
389 | int Cmdmandecoderaw(const char *Cmd) | |
390 | { | |
e0165dcf | 391 | int i =0; |
392 | int errCnt=0; | |
393 | size_t size=0; | |
fef74fdc | 394 | int invert=0; |
6ac4cb27 | 395 | int maxErr = 20; |
e0165dcf | 396 | char cmdp = param_getchar(Cmd, 0); |
1f918317 | 397 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { |
fef74fdc | 398 | PrintAndLog("Usage: data manrawdecode [invert] [maxErr]"); |
e0165dcf | 399 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); |
400 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
fef74fdc | 401 | PrintAndLog(" [invert] invert output"); |
1f918317 | 402 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); |
e0165dcf | 403 | PrintAndLog(""); |
404 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
405 | return 0; | |
406 | } | |
407 | if (DemodBufferLen==0) return 0; | |
408 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
409 | int high=0,low=0; | |
410 | for (;i<DemodBufferLen;++i){ | |
411 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
412 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
413 | BitStream[i]=DemodBuffer[i]; | |
414 | } | |
1f918317 | 415 | if (high>7 || low <0 ){ |
2767fc02 | 416 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); |
e0165dcf | 417 | return 0; |
418 | } | |
1f918317 | 419 | |
fef74fdc | 420 | sscanf(Cmd, "%i %i", &invert, &maxErr); |
e0165dcf | 421 | size=i; |
fef74fdc | 422 | errCnt=manrawdecode(BitStream, &size, invert); |
e0165dcf | 423 | if (errCnt>=maxErr){ |
424 | PrintAndLog("Too many errors: %d",errCnt); | |
425 | return 0; | |
426 | } | |
427 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
2767fc02 | 428 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
e0165dcf | 429 | if (errCnt==0){ |
430 | uint64_t id = 0; | |
431 | uint32_t hi = 0; | |
432 | size_t idx=0; | |
433 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
434 | //need to adjust to set bitstream back to manchester encoded data | |
435 | //setDemodBuf(BitStream, size, idx); | |
436 | ||
437 | printEM410x(hi, id); | |
438 | } | |
439 | } | |
440 | return 1; | |
d5a72d2f | 441 | } |
442 | ||
443 | //by marshmellow | |
444 | //biphase decode | |
445 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 446 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
447 | // and "invert" default = 0 if 1 it will invert output | |
2767fc02 | 448 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] |
d5a72d2f | 449 | int CmdBiphaseDecodeRaw(const char *Cmd) |
450 | { | |
ba1a299c | 451 | size_t size=0; |
b41534d1 | 452 | int offset=0, invert=0, maxErr=20, errCnt=0; |
b4fb11ba | 453 | char cmdp = param_getchar(Cmd, 0); |
454 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
b41534d1 | 455 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); |
456 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
b4fb11ba | 457 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); |
e0165dcf | 458 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); |
b4fb11ba | 459 | PrintAndLog(""); |
460 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
461 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
b41534d1 | 462 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); |
b4fb11ba | 463 | PrintAndLog(""); |
464 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
465 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
466 | return 0; | |
467 | } | |
b41534d1 | 468 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); |
469 | if (DemodBufferLen==0){ | |
470 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
b4fb11ba | 471 | return 0; |
472 | } | |
b41534d1 | 473 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
474 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
475 | size = DemodBufferLen; | |
1e090a61 | 476 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
b41534d1 | 477 | if (errCnt<0){ |
478 | PrintAndLog("Error during decode:%d", errCnt); | |
479 | return 0; | |
480 | } | |
481 | if (errCnt>maxErr){ | |
b4fb11ba | 482 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); |
483 | return 0; | |
484 | } | |
b41534d1 | 485 | |
486 | if (errCnt>0){ | |
2767fc02 | 487 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); |
b41534d1 | 488 | } |
489 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
2767fc02 | 490 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
b41534d1 | 491 | |
492 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
b4fb11ba | 493 | return 1; |
eb191de6 | 494 | } |
495 | ||
b41534d1 | 496 | //by marshmellow |
497 | // - ASK Demod then Biphase decode GraphBuffer samples | |
498 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
499 | { | |
500 | //ask raw demod GraphBuffer first | |
c7d67212 | 501 | int offset=0, clk=0, invert=0, maxErr=0; |
502 | sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
b41534d1 | 503 | |
8e2e6c8e | 504 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; |
505 | size_t size = getFromGraphBuf(BitStream); | |
fd227f4e | 506 | //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer |
c7d67212 | 507 | int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); |
8e2e6c8e | 508 | if ( errCnt < 0 || errCnt > maxErr ) { |
509 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | //attempt to Biphase decode BitStream | |
514 | errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
b41534d1 | 515 | if (errCnt < 0){ |
516 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
517 | return 0; | |
518 | } | |
519 | if (errCnt > maxErr) { | |
520 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
521 | return 0; | |
522 | } | |
523 | //success set DemodBuffer and return | |
524 | setDemodBuf(BitStream, size, 0); | |
525 | if (g_debugMode || verbose){ | |
8e2e6c8e | 526 | PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt); |
b41534d1 | 527 | printDemodBuff(); |
528 | } | |
529 | return 1; | |
530 | } | |
531 | //by marshmellow - see ASKbiphaseDemod | |
532 | int Cmdaskbiphdemod(const char *Cmd) | |
533 | { | |
e0165dcf | 534 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 535 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { |
536 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>"); | |
e0165dcf | 537 | PrintAndLog(" [offset], offset to begin biphase, default=0"); |
538 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
539 | PrintAndLog(" <invert>, 1 to invert output"); | |
540 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 541 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); |
e0165dcf | 542 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
543 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
544 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
545 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
546 | PrintAndLog(""); | |
547 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
548 | PrintAndLog(""); | |
fef74fdc | 549 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); |
550 | PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified"); | |
551 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
552 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
553 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
554 | 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"); | |
555 | PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 556 | return 0; |
557 | } | |
558 | return ASKbiphaseDemod(Cmd, TRUE); | |
b41534d1 | 559 | } |
560 | ||
8d960002 | 561 | //by marshmellow |
562 | //attempts to demodulate and identify a G_Prox_II verex/chubb card | |
563 | //WARNING: if it fails during some points it will destroy the DemodBuffer data | |
564 | // but will leave the GraphBuffer intact. | |
565 | //if successful it will push askraw data back to demod buffer ready for emulation | |
566 | int CmdG_Prox_II_Demod(const char *Cmd) | |
567 | { | |
e0165dcf | 568 | if (!ASKbiphaseDemod(Cmd, FALSE)){ |
569 | if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try"); | |
570 | return 0; | |
571 | } | |
572 | size_t size = DemodBufferLen; | |
573 | //call lfdemod.c demod for gProxII | |
574 | int ans = gProxII_Demod(DemodBuffer, &size); | |
575 | if (ans < 0){ | |
576 | if (g_debugMode) PrintAndLog("Error gProxII_Demod"); | |
577 | return 0; | |
578 | } | |
579 | //got a good demod | |
580 | uint32_t ByteStream[65] = {0x00}; | |
581 | uint8_t xorKey=0; | |
582 | uint8_t keyCnt=0; | |
583 | uint8_t bitCnt=0; | |
584 | uint8_t ByteCnt=0; | |
585 | size_t startIdx = ans + 6; //start after preamble | |
586 | for (size_t idx = 0; idx<size-6; idx++){ | |
587 | if ((idx+1) % 5 == 0){ | |
588 | //spacer bit - should be 0 | |
589 | if (DemodBuffer[startIdx+idx] != 0) { | |
590 | if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx); | |
591 | return 0; | |
592 | } | |
593 | continue; | |
594 | } | |
595 | if (keyCnt<8){ //lsb first | |
596 | xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt); | |
597 | keyCnt++; | |
598 | if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey); | |
599 | continue; | |
600 | } | |
601 | //lsb first | |
602 | ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt); | |
603 | bitCnt++; | |
604 | if (bitCnt % 8 == 0){ | |
605 | if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]); | |
606 | bitCnt=0; | |
607 | ByteCnt++; | |
608 | } | |
609 | } | |
610 | for (uint8_t i = 0; i < ByteCnt; i++){ | |
611 | ByteStream[i] ^= xorKey; //xor | |
612 | if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]); | |
613 | } | |
614 | //now ByteStream contains 64 bytes of decrypted raw tag data | |
615 | // | |
616 | uint8_t fmtLen = ByteStream[0]>>2; | |
617 | uint32_t FC = 0; | |
618 | uint32_t Card = 0; | |
619 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); | |
620 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
621 | uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); | |
622 | ||
623 | if (fmtLen==36){ | |
624 | FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); | |
625 | Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); | |
626 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
627 | } else if(fmtLen==26){ | |
628 | FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); | |
629 | Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); | |
630 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card); | |
631 | } else { | |
632 | PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen); | |
633 | } | |
634 | PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); | |
635 | setDemodBuf(DemodBuffer+ans, 96, 0); | |
636 | return 1; | |
8d960002 | 637 | } |
638 | ||
fef74fdc | 639 | //by marshmellow - see ASKDemod |
4ac906d1 | 640 | int Cmdaskrawdemod(const char *Cmd) |
641 | { | |
e0165dcf | 642 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 643 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { |
644 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]"); | |
e0165dcf | 645 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); |
646 | PrintAndLog(" <invert>, 1 to invert output"); | |
647 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 648 | PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)"); |
e0165dcf | 649 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
650 | PrintAndLog(""); | |
fef74fdc | 651 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); |
652 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
653 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
654 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
655 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
656 | 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"); | |
657 | PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 658 | return 0; |
659 | } | |
fef74fdc | 660 | return ASKDemod(Cmd, TRUE, FALSE, 0); |
4ac906d1 | 661 | } |
662 | ||
73d04bb4 | 663 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) |
7fe9b0b7 | 664 | { |
e0165dcf | 665 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; |
666 | size_t Correlation = 0; | |
667 | int maxSum = 0; | |
668 | int lastMax = 0; | |
669 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
670 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
671 | int sum = 0; | |
672 | for (int j = 0; j < window; ++j) { | |
673 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
674 | } | |
675 | CorrelBuffer[i] = sum; | |
676 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
677 | //another max | |
678 | Correlation = i-lastMax; | |
679 | lastMax = i; | |
680 | if (sum > maxSum) maxSum = sum; | |
681 | } else if (sum > maxSum){ | |
682 | maxSum=sum; | |
683 | lastMax = i; | |
684 | } | |
685 | } | |
686 | if (Correlation==0){ | |
687 | //try again with wider margin | |
688 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
689 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
690 | //another max | |
691 | Correlation = i-lastMax; | |
692 | lastMax = i; | |
693 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
694 | } | |
695 | } | |
696 | } | |
697 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
698 | ||
699 | if (SaveGrph){ | |
700 | GraphTraceLen = GraphTraceLen - window; | |
701 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
702 | RepaintGraphWindow(); | |
703 | } | |
704 | return Correlation; | |
73d04bb4 | 705 | } |
7fe9b0b7 | 706 | |
9f7bbd24 | 707 | int usage_data_autocorr(void) |
708 | { | |
e0165dcf | 709 | //print help |
710 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
711 | PrintAndLog("Options: "); | |
712 | PrintAndLog(" h This help"); | |
713 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
714 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
715 | return 0; | |
9f7bbd24 | 716 | } |
717 | ||
73d04bb4 | 718 | int CmdAutoCorr(const char *Cmd) |
719 | { | |
e0165dcf | 720 | char cmdp = param_getchar(Cmd, 0); |
721 | if (cmdp == 'h' || cmdp == 'H') | |
722 | return usage_data_autocorr(); | |
723 | int window = 4000; //set default | |
724 | char grph=0; | |
725 | bool updateGrph = FALSE; | |
726 | sscanf(Cmd, "%i %c", &window, &grph); | |
727 | ||
728 | if (window >= GraphTraceLen) { | |
729 | PrintAndLog("window must be smaller than trace (%d samples)", | |
730 | GraphTraceLen); | |
731 | return 0; | |
732 | } | |
733 | if (grph == 'g') updateGrph=TRUE; | |
734 | return AutoCorrelate(window, updateGrph, TRUE); | |
7fe9b0b7 | 735 | } |
736 | ||
737 | int CmdBitsamples(const char *Cmd) | |
738 | { | |
e0165dcf | 739 | int cnt = 0; |
740 | uint8_t got[12288]; | |
952a8bb5 | 741 | |
e0165dcf | 742 | GetFromBigBuf(got,sizeof(got),0); |
743 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 744 | |
e0165dcf | 745 | for (int j = 0; j < sizeof(got); j++) { |
746 | for (int k = 0; k < 8; k++) { | |
747 | if(got[j] & (1 << (7 - k))) { | |
748 | GraphBuffer[cnt++] = 1; | |
749 | } else { | |
750 | GraphBuffer[cnt++] = 0; | |
751 | } | |
752 | } | |
753 | } | |
754 | GraphTraceLen = cnt; | |
755 | RepaintGraphWindow(); | |
756 | return 0; | |
7fe9b0b7 | 757 | } |
758 | ||
7fe9b0b7 | 759 | int CmdBuffClear(const char *Cmd) |
760 | { | |
e0165dcf | 761 | UsbCommand c = {CMD_BUFF_CLEAR}; |
762 | SendCommand(&c); | |
763 | ClearGraph(true); | |
764 | return 0; | |
7fe9b0b7 | 765 | } |
766 | ||
767 | int CmdDec(const char *Cmd) | |
768 | { | |
e0165dcf | 769 | for (int i = 0; i < (GraphTraceLen / 2); ++i) |
770 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
771 | GraphTraceLen /= 2; | |
772 | PrintAndLog("decimated by 2"); | |
773 | RepaintGraphWindow(); | |
774 | return 0; | |
7fe9b0b7 | 775 | } |
698b649e MHS |
776 | /** |
777 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
778 | * name until someone does an actual interpolation command, not just | |
779 | * blindly repeating samples | |
780 | * @param Cmd | |
781 | * @return | |
782 | */ | |
783 | int CmdUndec(const char *Cmd) | |
784 | { | |
c856ceae MHS |
785 | if(param_getchar(Cmd, 0) == 'h') |
786 | { | |
787 | PrintAndLog("Usage: data undec [factor]"); | |
788 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
789 | PrintAndLog("Options: "); | |
790 | PrintAndLog(" h This help"); | |
791 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
792 | PrintAndLog("Example: 'data undec 3'"); | |
793 | return 0; | |
794 | } | |
795 | ||
796 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
698b649e MHS |
797 | //We have memory, don't we? |
798 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
c856ceae MHS |
799 | uint32_t g_index = 0 ,s_index = 0; |
800 | while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) | |
698b649e | 801 | { |
c856ceae MHS |
802 | int count = 0; |
803 | for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) | |
804 | swap[s_index+count] = GraphBuffer[g_index]; | |
805 | s_index+=count; | |
698b649e | 806 | } |
698b649e | 807 | |
c856ceae MHS |
808 | memcpy(GraphBuffer,swap, s_index * sizeof(int)); |
809 | GraphTraceLen = s_index; | |
810 | RepaintGraphWindow(); | |
698b649e MHS |
811 | return 0; |
812 | } | |
7fe9b0b7 | 813 | |
ec75f5c1 | 814 | //by marshmellow |
815 | //shift graph zero up or down based on input + or - | |
816 | int CmdGraphShiftZero(const char *Cmd) | |
817 | { | |
818 | ||
e0165dcf | 819 | int shift=0; |
820 | //set options from parameters entered with the command | |
821 | sscanf(Cmd, "%i", &shift); | |
822 | int shiftedVal=0; | |
823 | for(int i = 0; i<GraphTraceLen; i++){ | |
824 | shiftedVal=GraphBuffer[i]+shift; | |
825 | if (shiftedVal>127) | |
826 | shiftedVal=127; | |
827 | else if (shiftedVal<-127) | |
828 | shiftedVal=-127; | |
829 | GraphBuffer[i]= shiftedVal; | |
830 | } | |
831 | CmdNorm(""); | |
832 | return 0; | |
ec75f5c1 | 833 | } |
834 | ||
6de43508 | 835 | //by marshmellow |
836 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
2767fc02 | 837 | //similar to dirtheshold, threshold commands |
6de43508 | 838 | //takes a threshold length which is the measured length between two samples then determines an edge |
839 | int CmdAskEdgeDetect(const char *Cmd) | |
840 | { | |
e0165dcf | 841 | int thresLen = 25; |
842 | sscanf(Cmd, "%i", &thresLen); | |
49bbc60a | 843 | |
e0165dcf | 844 | for(int i = 1; i<GraphTraceLen; i++){ |
845 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
49bbc60a | 846 | GraphBuffer[i-1] = 127; |
e0165dcf | 847 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down |
49bbc60a | 848 | GraphBuffer[i-1] = -127; |
e0165dcf | 849 | } |
850 | RepaintGraphWindow(); | |
e0165dcf | 851 | return 0; |
6de43508 | 852 | } |
853 | ||
7fe9b0b7 | 854 | /* Print our clock rate */ |
ba1a299c | 855 | // uses data from graphbuffer |
f3bf15e4 | 856 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. |
7fe9b0b7 | 857 | int CmdDetectClockRate(const char *Cmd) |
858 | { | |
f3bf15e4 | 859 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 860 | if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { |
861 | PrintAndLog("Usage: data detectclock [modulation] <clock>"); | |
f3bf15e4 | 862 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); |
fef74fdc | 863 | PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)"); |
f3bf15e4 | 864 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); |
865 | PrintAndLog(""); | |
866 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
867 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
868 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
869 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
870 | } | |
871 | int ans=0; | |
872 | if (cmdp == 'a'){ | |
fef74fdc | 873 | ans = GetAskClock(Cmd+1, true, false); |
f3bf15e4 | 874 | } else if (cmdp == 'f'){ |
875 | ans = GetFskClock("", true, false); | |
876 | } else if (cmdp == 'n'){ | |
877 | ans = GetNrzClock("", true, false); | |
878 | } else if (cmdp == 'p'){ | |
879 | ans = GetPskClock("", true, false); | |
880 | } else { | |
881 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
882 | } | |
883 | return ans; | |
7fe9b0b7 | 884 | } |
66707a3b | 885 | |
2767fc02 | 886 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) |
887 | { | |
888 | char *fskType; | |
889 | if (fchigh==10 && fclow==8){ | |
890 | if (invert) //fsk2a | |
891 | fskType = "FSK2a"; | |
892 | else //fsk2 | |
893 | fskType = "FSK2"; | |
894 | } else if (fchigh == 8 && fclow == 5) { | |
895 | if (invert) | |
896 | fskType = "FSK1"; | |
897 | else | |
898 | fskType = "FSK1a"; | |
899 | } else { | |
900 | fskType = "FSK??"; | |
901 | } | |
902 | return fskType; | |
903 | } | |
904 | ||
2fc2150e | 905 | //by marshmellow |
eb191de6 | 906 | //fsk raw demod and print binary |
6de43508 | 907 | //takes 4 arguments - Clock, invert, fchigh, fclow |
908 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
4ac906d1 | 909 | int FSKrawDemod(const char *Cmd, bool verbose) |
b3b70669 | 910 | { |
e0165dcf | 911 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
912 | //set defaults | |
913 | int rfLen = 0; | |
914 | int invert = 0; | |
915 | int fchigh = 0; | |
916 | int fclow = 0; | |
917 | ||
918 | //set options from parameters entered with the command | |
919 | sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); | |
920 | ||
921 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { | |
922 | if (rfLen==1){ | |
2eec55c8 | 923 | invert = 1; //if invert option only is used |
e0165dcf | 924 | rfLen = 0; |
925 | } | |
926 | } | |
927 | ||
928 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
929 | size_t BitLen = getFromGraphBuf(BitStream); | |
930 | if (BitLen==0) return 0; | |
931 | //get field clock lengths | |
932 | uint16_t fcs=0; | |
e0165dcf | 933 | if (fchigh==0 || fclow == 0){ |
2eec55c8 | 934 | fcs = countFC(BitStream, BitLen, 1); |
e0165dcf | 935 | if (fcs==0){ |
936 | fchigh=10; | |
937 | fclow=8; | |
938 | }else{ | |
939 | fchigh = (fcs >> 8) & 0xFF; | |
940 | fclow = fcs & 0xFF; | |
941 | } | |
942 | } | |
943 | //get bit clock length | |
944 | if (rfLen==0){ | |
945 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
946 | if (rfLen == 0) rfLen = 50; | |
947 | } | |
e0165dcf | 948 | int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow); |
949 | if (size>0){ | |
950 | setDemodBuf(BitStream,size,0); | |
951 | ||
952 | // Now output the bitstream to the scrollback by line of 16 bits | |
2767fc02 | 953 | if (verbose || g_debugMode) { |
954 | PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow); | |
955 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); | |
956 | printDemodBuff(); | |
e0165dcf | 957 | } |
958 | ||
959 | return 1; | |
960 | } else{ | |
2767fc02 | 961 | if (g_debugMode) PrintAndLog("no FSK data found"); |
e0165dcf | 962 | } |
963 | return 0; | |
b3b70669 | 964 | } |
965 | ||
4ac906d1 | 966 | //by marshmellow |
967 | //fsk raw demod and print binary | |
968 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
969 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
970 | int CmdFSKrawdemod(const char *Cmd) | |
971 | { | |
e0165dcf | 972 | char cmdp = param_getchar(Cmd, 0); |
973 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
974 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); | |
975 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
976 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
977 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
978 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
979 | PrintAndLog(""); | |
980 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
981 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
982 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
983 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
984 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
985 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
986 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
987 | return 0; | |
988 | } | |
989 | return FSKrawDemod(Cmd, TRUE); | |
4ac906d1 | 990 | } |
991 | ||
eb191de6 | 992 | //by marshmellow (based on existing demod + holiman's refactor) |
993 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
994 | //print full HID Prox ID and some bit format details if found | |
b3b70669 | 995 | int CmdFSKdemodHID(const char *Cmd) |
996 | { | |
e0165dcf | 997 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
998 | uint32_t hi2=0, hi=0, lo=0; | |
999 | ||
1000 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1001 | size_t BitLen = getFromGraphBuf(BitStream); | |
1002 | if (BitLen==0) return 0; | |
1003 | //get binary from fsk wave | |
1004 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1005 | if (idx<0){ | |
1006 | if (g_debugMode){ | |
1007 | if (idx==-1){ | |
1008 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1009 | } else if (idx == -2) { | |
1010 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1011 | } else if (idx == -3) { | |
1012 | PrintAndLog("DEBUG: Preamble not found"); | |
1013 | } else if (idx == -4) { | |
1014 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
1015 | } else { | |
1016 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1017 | } | |
1018 | } | |
1019 | return 0; | |
1020 | } | |
1021 | if (hi2==0 && hi==0 && lo==0) { | |
1022 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
1023 | return 0; | |
1024 | } | |
1025 | if (hi2 != 0){ //extra large HID tags | |
1026 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", | |
1027 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); | |
1028 | } | |
1029 | else { //standard HID tags <38 bits | |
1030 | uint8_t fmtLen = 0; | |
1031 | uint32_t fc = 0; | |
1032 | uint32_t cardnum = 0; | |
1033 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
1034 | uint32_t lo2=0; | |
1035 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit | |
1036 | uint8_t idx3 = 1; | |
1037 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
1038 | lo2=lo2>>1; | |
1039 | idx3++; | |
1040 | } | |
1041 | fmtLen =idx3+19; | |
1042 | fc =0; | |
1043 | cardnum=0; | |
1044 | if(fmtLen==26){ | |
1045 | cardnum = (lo>>1)&0xFFFF; | |
1046 | fc = (lo>>17)&0xFF; | |
1047 | } | |
1048 | if(fmtLen==34){ | |
1049 | cardnum = (lo>>1)&0xFFFF; | |
1050 | fc= ((hi&1)<<15)|(lo>>17); | |
1051 | } | |
1052 | if(fmtLen==35){ | |
1053 | cardnum = (lo>>1)&0xFFFFF; | |
1054 | fc = ((hi&1)<<11)|(lo>>21); | |
1055 | } | |
1056 | } | |
1057 | else { //if bit 38 is not set then 37 bit format is used | |
1058 | fmtLen = 37; | |
1059 | fc = 0; | |
1060 | cardnum = 0; | |
1061 | if(fmtLen == 37){ | |
1062 | cardnum = (lo>>1)&0x7FFFF; | |
1063 | fc = ((hi&0xF)<<12)|(lo>>20); | |
1064 | } | |
1065 | } | |
1066 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
1067 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, | |
1068 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); | |
1069 | } | |
1070 | setDemodBuf(BitStream,BitLen,idx); | |
1071 | if (g_debugMode){ | |
1072 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
1073 | printDemodBuff(); | |
1074 | } | |
1075 | return 1; | |
ec75f5c1 | 1076 | } |
1077 | ||
04d2721b | 1078 | //by marshmellow |
1079 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 1080 | //print full Paradox Prox ID and some bit format details if found |
1081 | int CmdFSKdemodParadox(const char *Cmd) | |
1082 | { | |
e0165dcf | 1083 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1084 | uint32_t hi2=0, hi=0, lo=0; | |
1085 | ||
1086 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1087 | size_t BitLen = getFromGraphBuf(BitStream); | |
1088 | if (BitLen==0) return 0; | |
1089 | //get binary from fsk wave | |
1090 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
1091 | if (idx<0){ | |
1092 | if (g_debugMode){ | |
1093 | if (idx==-1){ | |
1094 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1095 | } else if (idx == -2) { | |
1096 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1097 | } else if (idx == -3) { | |
1098 | PrintAndLog("DEBUG: Preamble not found"); | |
1099 | } else if (idx == -4) { | |
1100 | PrintAndLog("DEBUG: Error in Manchester data"); | |
1101 | } else { | |
1102 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1103 | } | |
1104 | } | |
1105 | return 0; | |
1106 | } | |
1107 | if (hi2==0 && hi==0 && lo==0){ | |
1108 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
1109 | return 0; | |
1110 | } | |
1111 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
1112 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
1113 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1114 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1115 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1116 | ||
1117 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", | |
1118 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
1119 | setDemodBuf(BitStream,BitLen,idx); | |
1120 | if (g_debugMode){ | |
1121 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
1122 | printDemodBuff(); | |
1123 | } | |
1124 | return 1; | |
b3b70669 | 1125 | } |
1126 | ||
2fc2150e | 1127 | //by marshmellow |
eb191de6 | 1128 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 |
1129 | //print ioprox ID and some format details | |
b3b70669 | 1130 | int CmdFSKdemodIO(const char *Cmd) |
1131 | { | |
e0165dcf | 1132 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1133 | //set defaults | |
1134 | int idx=0; | |
1135 | //something in graphbuffer? | |
1136 | if (GraphTraceLen < 65) { | |
1137 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
1138 | return 0; | |
1139 | } | |
1140 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1141 | size_t BitLen = getFromGraphBuf(BitStream); | |
1142 | if (BitLen==0) return 0; | |
1143 | ||
1144 | //get binary from fsk wave | |
1145 | idx = IOdemodFSK(BitStream,BitLen); | |
1146 | if (idx<0){ | |
1147 | if (g_debugMode){ | |
1148 | if (idx==-1){ | |
1149 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1150 | } else if (idx == -2) { | |
1151 | PrintAndLog("DEBUG: not enough samples"); | |
1152 | } else if (idx == -3) { | |
1153 | PrintAndLog("DEBUG: error during fskdemod"); | |
1154 | } else if (idx == -4) { | |
1155 | PrintAndLog("DEBUG: Preamble not found"); | |
1156 | } else if (idx == -5) { | |
1157 | PrintAndLog("DEBUG: Separator bits not found"); | |
1158 | } else { | |
1159 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1160 | } | |
1161 | } | |
1162 | return 0; | |
1163 | } | |
1164 | if (idx==0){ | |
2767fc02 | 1165 | if (g_debugMode){ |
e0165dcf | 1166 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); |
2767fc02 | 1167 | if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); |
e0165dcf | 1168 | } |
1169 | return 0; | |
1170 | } | |
1171 | //Index map | |
1172 | //0 10 20 30 40 50 60 | |
1173 | //| | | | | | | | |
1174 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
1175 | //----------------------------------------------------------------------------- | |
1176 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
1177 | // | |
1178 | //XSF(version)facility:codeone+codetwo (raw) | |
1179 | //Handle the data | |
1180 | if (idx+64>BitLen) { | |
2767fc02 | 1181 | if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen); |
e0165dcf | 1182 | return 0; |
1183 | } | |
1184 | 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]); | |
1185 | 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]); | |
1186 | 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]); | |
1187 | 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]); | |
1188 | 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]); | |
1189 | 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]); | |
1190 | 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]); | |
1191 | ||
1192 | uint32_t code = bytebits_to_byte(BitStream+idx,32); | |
1193 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); | |
1194 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 | |
1195 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
1196 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 | |
1197 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
1198 | uint16_t calccrc = 0; | |
1199 | ||
1200 | for (uint8_t i=1; i<6; ++i){ | |
1201 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
e0165dcf | 1202 | } |
1203 | calccrc &= 0xff; | |
1204 | calccrc = 0xff - calccrc; | |
1205 | ||
1206 | char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; | |
1207 | ||
1208 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
1209 | setDemodBuf(BitStream,64,idx); | |
1210 | if (g_debugMode){ | |
1211 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
1212 | printDemodBuff(); | |
1213 | } | |
1214 | return 1; | |
b3b70669 | 1215 | } |
1e090a61 | 1216 | |
1e090a61 | 1217 | //by marshmellow |
1218 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1219 | //print full AWID Prox ID and some bit format details if found | |
1220 | int CmdFSKdemodAWID(const char *Cmd) | |
1221 | { | |
1222 | ||
e0165dcf | 1223 | //int verbose=1; |
1224 | //sscanf(Cmd, "%i", &verbose); | |
1225 | ||
1226 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
1227 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1228 | size_t size = getFromGraphBuf(BitStream); | |
1229 | if (size==0) return 0; | |
1230 | ||
1231 | //get binary from fsk wave | |
1232 | int idx = AWIDdemodFSK(BitStream, &size); | |
1233 | if (idx<=0){ | |
1234 | if (g_debugMode==1){ | |
1235 | if (idx == -1) | |
1236 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1237 | else if (idx == -2) | |
1238 | PrintAndLog("DEBUG: Error - only noise found"); | |
1239 | else if (idx == -3) | |
1240 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1241 | else if (idx == -4) | |
1242 | PrintAndLog("DEBUG: Error - AWID preamble not found"); | |
1243 | else if (idx == -5) | |
1244 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1245 | else | |
1246 | PrintAndLog("DEBUG: Error %d",idx); | |
1247 | } | |
1248 | return 0; | |
1249 | } | |
1250 | ||
1251 | // Index map | |
1252 | // 0 10 20 30 40 50 60 | |
1253 | // | | | | | | | | |
1254 | // 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 | |
1255 | // ----------------------------------------------------------------------------- | |
1256 | // 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 | |
1257 | // 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 | |
1258 | // |---26 bit---| |-----117----||-------------142-------------| | |
1259 | // b = format bit len, o = odd parity of last 3 bits | |
1260 | // f = facility code, c = card number | |
1261 | // w = wiegand parity | |
1262 | // (26 bit format shown) | |
1e090a61 | 1263 | |
e0165dcf | 1264 | //get raw ID before removing parities |
1265 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1266 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1267 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1268 | setDemodBuf(BitStream,96,idx); | |
1269 | ||
1270 | size = removeParity(BitStream, idx+8, 4, 1, 88); | |
1271 | if (size != 66){ | |
1272 | if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); | |
1273 | return 0; | |
1274 | } | |
1275 | // ok valid card found! | |
1276 | ||
1277 | // Index map | |
1278 | // 0 10 20 30 40 50 60 | |
1279 | // | | | | | | | | |
1280 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1281 | // ----------------------------------------------------------------------------- | |
1282 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1283 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1284 | // |26 bit| |-117--| |-----142------| | |
1285 | // b = format bit len, o = odd parity of last 3 bits | |
1286 | // f = facility code, c = card number | |
1287 | // w = wiegand parity | |
1288 | // (26 bit format shown) | |
1289 | ||
1290 | uint32_t fc = 0; | |
1291 | uint32_t cardnum = 0; | |
1292 | uint32_t code1 = 0; | |
1293 | uint32_t code2 = 0; | |
1294 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1295 | if (fmtLen==26){ | |
1296 | fc = bytebits_to_byte(BitStream+9, 8); | |
1297 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1298 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1299 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); | |
1300 | } else { | |
1301 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1302 | if (fmtLen>32){ | |
1303 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1304 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
1305 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); | |
1306 | } else{ | |
1307 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1308 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); | |
1309 | } | |
1310 | } | |
1311 | if (g_debugMode){ | |
1312 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1313 | printDemodBuff(); | |
1314 | } | |
1315 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands | |
1316 | return 1; | |
1e090a61 | 1317 | } |
1318 | ||
1319 | //by marshmellow | |
1320 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1321 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1322 | int CmdFSKdemodPyramid(const char *Cmd) | |
1323 | { | |
e0165dcf | 1324 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1325 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1326 | size_t size = getFromGraphBuf(BitStream); | |
1327 | if (size==0) return 0; | |
1328 | ||
1329 | //get binary from fsk wave | |
1330 | int idx = PyramiddemodFSK(BitStream, &size); | |
1331 | if (idx < 0){ | |
1332 | if (g_debugMode==1){ | |
1333 | if (idx == -5) | |
1334 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1335 | else if (idx == -1) | |
1336 | PrintAndLog("DEBUG: Error - only noise found"); | |
1337 | else if (idx == -2) | |
1338 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1339 | else if (idx == -3) | |
1340 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1341 | else if (idx == -4) | |
1342 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); | |
1343 | else | |
1344 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1345 | } | |
1346 | return 0; | |
1347 | } | |
1348 | // Index map | |
1349 | // 0 10 20 30 40 50 60 | |
1350 | // | | | | | | | | |
1351 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1352 | // ----------------------------------------------------------------------------- | |
1353 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1354 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1355 | ||
1356 | // 64 70 80 90 100 110 120 | |
1357 | // | | | | | | | | |
1358 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1359 | // ----------------------------------------------------------------------------- | |
1360 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1361 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1362 | // |---115---||---------71---------| | |
1363 | // s = format start bit, o = odd parity of last 7 bits | |
1364 | // f = facility code, c = card number | |
1365 | // w = wiegand parity, x = extra space for other formats | |
1366 | // p = unknown checksum | |
1367 | // (26 bit format shown) | |
1368 | ||
1369 | //get bytes for checksum calc | |
1370 | uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); | |
1371 | uint8_t csBuff[14] = {0x00}; | |
1372 | for (uint8_t i = 0; i < 13; i++){ | |
1373 | csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); | |
1374 | } | |
1375 | //check checksum calc | |
1376 | //checksum calc thanks to ICEMAN!! | |
1377 | uint32_t checkCS = CRC8Maxim(csBuff,13); | |
1378 | ||
1379 | //get raw ID before removing parities | |
1380 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1381 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1382 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1383 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
1384 | setDemodBuf(BitStream,128,idx); | |
1385 | ||
1386 | size = removeParity(BitStream, idx+8, 8, 1, 120); | |
1387 | if (size != 105){ | |
1388 | if (g_debugMode==1) | |
1389 | PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); | |
1390 | return 0; | |
1391 | } | |
1392 | ||
1393 | // ok valid card found! | |
1394 | ||
1395 | // Index map | |
1396 | // 0 10 20 30 40 50 60 70 | |
1397 | // | | | | | | | | | |
1398 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1399 | // ----------------------------------------------------------------------- | |
1400 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1401 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1402 | ||
1403 | // 71 80 90 100 | |
1404 | // | | | | | |
1405 | // 1 2 34567890 1234567890123456 7 8901234 | |
1406 | // --------------------------------------- | |
1407 | // 1 1 01110011 0000000001000110 0 1001010 | |
1408 | // s w ffffffff cccccccccccccccc w ppppppp | |
1409 | // |--115-| |------71------| | |
1410 | // s = format start bit, o = odd parity of last 7 bits | |
1411 | // f = facility code, c = card number | |
1412 | // w = wiegand parity, x = extra space for other formats | |
1413 | // p = unknown checksum | |
1414 | // (26 bit format shown) | |
1415 | ||
1416 | //find start bit to get fmtLen | |
1417 | int j; | |
1418 | for (j=0; j<size; j++){ | |
1419 | if(BitStream[j]) break; | |
1420 | } | |
1421 | uint8_t fmtLen = size-j-8; | |
1422 | uint32_t fc = 0; | |
1423 | uint32_t cardnum = 0; | |
1424 | uint32_t code1 = 0; | |
1425 | //uint32_t code2 = 0; | |
1426 | if (fmtLen==26){ | |
1427 | fc = bytebits_to_byte(BitStream+73, 8); | |
1428 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1429 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
1430 | 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); | |
1431 | } else if (fmtLen==45){ | |
1432 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1433 | fc = bytebits_to_byte(BitStream+53, 10); | |
1434 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
1435 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1436 | } else { | |
1437 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1438 | if (fmtLen>32){ | |
1439 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1440 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
1441 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1442 | } else{ | |
1443 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
1444 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1445 | } | |
1446 | } | |
1447 | if (checksum == checkCS) | |
1448 | PrintAndLog("Checksum %02x passed", checksum); | |
1449 | else | |
1450 | PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); | |
1451 | ||
1452 | if (g_debugMode){ | |
1453 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1454 | printDemodBuff(); | |
1455 | } | |
1456 | return 1; | |
1e090a61 | 1457 | } |
1458 | ||
b2c330b3 | 1459 | // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits) |
04bb0567 | 1460 | // 8 databits + 1 parity (1) |
1461 | // CIITT 16 chksum | |
1462 | // NATIONAL CODE, ICAR database | |
b2c330b3 | 1463 | // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf |
04bb0567 | 1464 | // FLAG (animal/non-animal) |
b2c330b3 | 1465 | int CmdFDXBdemodBI(const char *Cmd){ |
04bb0567 | 1466 | |
1467 | int invert = 1; | |
1468 | int clk = 32; | |
1469 | int errCnt = 0; | |
1470 | int maxErr = 0; | |
1471 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
1472 | size_t size = getFromGraphBuf(BitStream); | |
1473 | ||
1474 | errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); | |
1475 | if ( errCnt < 0 || errCnt > maxErr ) { | |
c2c7f6c2 | 1476 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); |
04bb0567 | 1477 | return 0; |
1478 | } | |
1479 | ||
1480 | errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1); | |
1481 | if (errCnt < 0 || errCnt > maxErr ) { | |
1482 | if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
1483 | return 0; | |
1484 | } | |
1485 | ||
b2c330b3 | 1486 | int preambleIndex = FDXBdemodBI(BitStream, &size); |
04bb0567 | 1487 | if (preambleIndex < 0){ |
b2c330b3 | 1488 | if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex); |
04bb0567 | 1489 | return 0; |
1490 | } | |
1491 | ||
1492 | setDemodBuf(BitStream, 128, preambleIndex); | |
04bb0567 | 1493 | |
c2c7f6c2 | 1494 | // remove but don't verify parity. (pType = 2) |
fd1d30cb | 1495 | size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117); |
1496 | if ( size <= 103 ) { | |
04bb0567 | 1497 | if (g_debugMode) PrintAndLog("Error removeParity:: %d", size); |
1498 | return 0; | |
1499 | } | |
b2c330b3 | 1500 | if (g_debugMode) { |
1501 | char *bin = sprint_bin_break(BitStream,size,16); | |
1502 | PrintAndLog("DEBUG BinStream:\n%s",bin); | |
1503 | } | |
1504 | PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:"); | |
6eaa8da9 | 1505 | if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size); |
04bb0567 | 1506 | |
04bb0567 | 1507 | //got a good demod |
b2c330b3 | 1508 | uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32); |
04bb0567 | 1509 | uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10); |
1510 | uint8_t dataBlockBit = BitStream[48]; | |
1511 | uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14); | |
1512 | uint8_t animalBit = BitStream[63]; | |
1513 | uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16); | |
1514 | uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24); | |
1515 | ||
07b5a3c3 | 1516 | uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32); |
6eaa8da9 | 1517 | uint8_t raw[8]; |
1518 | num_to_bytes(rawid, 8, raw); | |
6eaa8da9 | 1519 | |
07b5a3c3 | 1520 | if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8)); |
6eaa8da9 | 1521 | |
07b5a3c3 | 1522 | uint16_t calcCrc = crc16_ccitt_kermit(raw, 8); |
c2c7f6c2 | 1523 | PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode); |
b2c330b3 | 1524 | PrintAndLog("National Code: %012llu", NationalCode); |
c2c7f6c2 | 1525 | PrintAndLog("CountryCode: %04u", countryCode); |
b2c330b3 | 1526 | PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False"); |
1527 | PrintAndLog("reserved Code: %u", reservedCode); | |
1528 | PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False"); | |
6eaa8da9 | 1529 | PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed"); |
1530 | PrintAndLog("Extended: 0x%X\n", extended); | |
fd1d30cb | 1531 | |
04bb0567 | 1532 | return 1; |
1533 | } | |
1534 | ||
1535 | ||
e770c648 | 1536 | //by marshmellow |
1537 | //attempt to psk1 demod graph buffer | |
4ac906d1 | 1538 | int PSKDemod(const char *Cmd, bool verbose) |
e770c648 | 1539 | { |
e0165dcf | 1540 | int invert=0; |
1541 | int clk=0; | |
1542 | int maxErr=100; | |
1543 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1544 | if (clk==1){ | |
1545 | invert=1; | |
1546 | clk=0; | |
1547 | } | |
1548 | if (invert != 0 && invert != 1) { | |
2ec87733 | 1549 | if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd); |
e0165dcf | 1550 | return 0; |
1551 | } | |
1552 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1553 | size_t BitLen = getFromGraphBuf(BitStream); | |
2ec87733 | 1554 | if (BitLen==0) return 0; |
2eec55c8 | 1555 | uint8_t carrier=countFC(BitStream, BitLen, 0); |
e0165dcf | 1556 | if (carrier!=2 && carrier!=4 && carrier!=8){ |
1557 | //invalid carrier | |
1558 | return 0; | |
1559 | } | |
1560 | int errCnt=0; | |
1561 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
1562 | if (errCnt > maxErr){ | |
2767fc02 | 1563 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1564 | return 0; |
1565 | } | |
1566 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
2767fc02 | 1567 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1568 | return 0; |
1569 | } | |
2767fc02 | 1570 | if (verbose || g_debugMode){ |
1571 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 1572 | if (errCnt>0){ |
2767fc02 | 1573 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1574 | } |
1575 | } | |
1576 | //prime demod buffer for output | |
1577 | setDemodBuf(BitStream,BitLen,0); | |
1578 | return 1; | |
4118b74d | 1579 | } |
e770c648 | 1580 | |
4118b74d | 1581 | // Indala 26 bit decode |
1582 | // by marshmellow | |
1583 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1584 | int CmdIndalaDecode(const char *Cmd) | |
1585 | { | |
b4fb11ba | 1586 | int ans; |
1587 | if (strlen(Cmd)>0){ | |
1588 | ans = PSKDemod(Cmd, 0); | |
1589 | } else{ //default to RF/32 | |
1590 | ans = PSKDemod("32", 0); | |
1591 | } | |
4118b74d | 1592 | |
7a8a982b | 1593 | if (!ans){ |
ec75f5c1 | 1594 | if (g_debugMode==1) |
b4fb11ba | 1595 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1596 | return 0; |
1597 | } | |
1598 | uint8_t invert=0; | |
2b3af97d | 1599 | ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert); |
ba1a299c | 1600 | if (ans < 1) { |
ec75f5c1 | 1601 | if (g_debugMode==1) |
b4fb11ba | 1602 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1603 | return -1; |
1604 | } | |
a1d17964 | 1605 | char showbits[251]={0x00}; |
84871873 | 1606 | if (invert) |
b4fb11ba | 1607 | if (g_debugMode==1) |
e0165dcf | 1608 | PrintAndLog("Had to invert bits"); |
ec75f5c1 | 1609 | |
ba1a299c | 1610 | //convert UID to HEX |
1611 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
1612 | int idx; | |
1613 | uid1=0; | |
1614 | uid2=0; | |
1615 | PrintAndLog("BitLen: %d",DemodBufferLen); | |
1616 | if (DemodBufferLen==64){ | |
1617 | for( idx=0; idx<64; idx++) { | |
1618 | uid1=(uid1<<1)|(uid2>>31); | |
1619 | if (DemodBuffer[idx] == 0) { | |
1620 | uid2=(uid2<<1)|0; | |
1621 | showbits[idx]='0'; | |
1622 | } else { | |
1623 | uid2=(uid2<<1)|1; | |
1624 | showbits[idx]='1'; | |
1625 | } | |
1626 | } | |
1627 | showbits[idx]='\0'; | |
1628 | PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2); | |
1629 | } | |
1630 | else { | |
1631 | uid3=0; | |
1632 | uid4=0; | |
1633 | uid5=0; | |
1634 | uid6=0; | |
1635 | uid7=0; | |
1636 | for( idx=0; idx<DemodBufferLen; idx++) { | |
1637 | uid1=(uid1<<1)|(uid2>>31); | |
1638 | uid2=(uid2<<1)|(uid3>>31); | |
1639 | uid3=(uid3<<1)|(uid4>>31); | |
1640 | uid4=(uid4<<1)|(uid5>>31); | |
1641 | uid5=(uid5<<1)|(uid6>>31); | |
1642 | uid6=(uid6<<1)|(uid7>>31); | |
1643 | if (DemodBuffer[idx] == 0) { | |
1644 | uid7=(uid7<<1)|0; | |
1645 | showbits[idx]='0'; | |
1646 | } | |
1647 | else { | |
1648 | uid7=(uid7<<1)|1; | |
1649 | showbits[idx]='1'; | |
1650 | } | |
1651 | } | |
1652 | showbits[idx]='\0'; | |
1653 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); | |
1654 | } | |
b4fb11ba | 1655 | if (g_debugMode){ |
1656 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1657 | printDemodBuff(); | |
1658 | } | |
ba1a299c | 1659 | return 1; |
4118b74d | 1660 | } |
1661 | ||
411105e0 | 1662 | int CmdPSKNexWatch(const char *Cmd) |
1663 | { | |
1664 | if (!PSKDemod("", false)) return 0; | |
1665 | uint8_t preamble[28] = {0,0,0,0,0,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; | |
1666 | size_t startIdx = 0, size = DemodBufferLen; | |
1667 | bool invert = false; | |
1668 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){ | |
1669 | // if didn't find preamble try again inverting | |
1670 | if (!PSKDemod("1", false)) return 0; | |
1671 | size = DemodBufferLen; | |
1672 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0; | |
1673 | invert = true; | |
1674 | } | |
1675 | if (size != 128) return 0; | |
1676 | setDemodBuf(DemodBuffer, size, startIdx+4); | |
1677 | startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0) | |
1678 | //get ID | |
1679 | uint32_t ID = 0; | |
1680 | for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){ | |
1681 | for (uint8_t idx=0; idx<8; idx++){ | |
1682 | ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)]; | |
1683 | } | |
1684 | } | |
1685 | //parity check (TBD) | |
1686 | ||
1687 | //checksum check (TBD) | |
1688 | ||
1689 | //output | |
1690 | PrintAndLog("NexWatch ID: %d", ID); | |
1691 | if (invert){ | |
1692 | PrintAndLog("Had to Invert - probably NexKey"); | |
1693 | for (uint8_t idx=0; idx<size; idx++) | |
1694 | DemodBuffer[idx] ^= 1; | |
1695 | } | |
1696 | ||
1697 | CmdPrintDemodBuff("x"); | |
1698 | return 1; | |
1699 | } | |
1700 | ||
04d2721b | 1701 | // by marshmellow |
e770c648 | 1702 | // takes 3 arguments - clock, invert, maxErr as integers |
1703 | // attempts to demodulate nrz only | |
1704 | // prints binary found and saves in demodbuffer for further commands | |
b4a2fcf6 | 1705 | int NRZrawDemod(const char *Cmd, bool verbose) |
e770c648 | 1706 | { |
e0165dcf | 1707 | int invert=0; |
1708 | int clk=0; | |
1709 | int maxErr=100; | |
1710 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1711 | if (clk==1){ | |
1712 | invert=1; | |
1713 | clk=0; | |
1714 | } | |
1715 | if (invert != 0 && invert != 1) { | |
1716 | PrintAndLog("Invalid argument: %s", Cmd); | |
1717 | return 0; | |
1718 | } | |
1719 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1720 | size_t BitLen = getFromGraphBuf(BitStream); | |
1721 | if (BitLen==0) return 0; | |
1722 | int errCnt=0; | |
1723 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr); | |
1724 | if (errCnt > maxErr){ | |
1725 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1726 | return 0; | |
1727 | } | |
2eec55c8 | 1728 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
e0165dcf | 1729 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
1730 | return 0; | |
1731 | } | |
1732 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1733 | //prime demod buffer for output | |
1734 | setDemodBuf(BitStream,BitLen,0); | |
1735 | ||
2767fc02 | 1736 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1737 | if (verbose || g_debugMode) { |
1738 | PrintAndLog("NRZ demoded bitstream:"); | |
1739 | // Now output the bitstream to the scrollback by line of 16 bits | |
1740 | printDemodBuff(); | |
1741 | } | |
1742 | return 1; | |
b4a2fcf6 | 1743 | } |
1744 | ||
1745 | int CmdNRZrawDemod(const char *Cmd) | |
1746 | { | |
e0165dcf | 1747 | char cmdp = param_getchar(Cmd, 0); |
1748 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1749 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); | |
1750 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1751 | PrintAndLog(" <invert>, 1 for invert output"); | |
1752 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1753 | PrintAndLog(""); | |
1754 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
1755 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1756 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1757 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1758 | 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"); | |
1759 | return 0; | |
1760 | } | |
1761 | return NRZrawDemod(Cmd, TRUE); | |
e770c648 | 1762 | } |
1763 | ||
1764 | // by marshmellow | |
1765 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 1766 | // attempts to demodulate psk only |
1767 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1768 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1769 | { |
e0165dcf | 1770 | int ans; |
1771 | char cmdp = param_getchar(Cmd, 0); | |
1772 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1773 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); | |
1774 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1775 | PrintAndLog(" <invert>, 1 for invert output"); | |
1776 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1777 | PrintAndLog(""); | |
1778 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
1779 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1780 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1781 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1782 | 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"); | |
1783 | return 0; | |
1784 | } | |
1785 | ans = PSKDemod(Cmd, TRUE); | |
1786 | //output | |
1787 | if (!ans){ | |
1788 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1789 | return 0; | |
1790 | } | |
7a8a982b | 1791 | |
2767fc02 | 1792 | PrintAndLog("PSK1 demoded bitstream:"); |
e0165dcf | 1793 | // Now output the bitstream to the scrollback by line of 16 bits |
1794 | printDemodBuff(); | |
1795 | return 1; | |
4118b74d | 1796 | } |
1797 | ||
04d2721b | 1798 | // by marshmellow |
19ff0210 | 1799 | // takes same args as cmdpsk1rawdemod |
04d2721b | 1800 | int CmdPSK2rawDemod(const char *Cmd) |
1801 | { | |
e0165dcf | 1802 | int ans=0; |
1803 | char cmdp = param_getchar(Cmd, 0); | |
1804 | if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') { | |
1805 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); | |
1806 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1807 | PrintAndLog(" <invert>, 1 for invert output"); | |
1808 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1809 | PrintAndLog(""); | |
1810 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1811 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1812 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1813 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1814 | 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"); | |
1815 | return 0; | |
1816 | } | |
1817 | ans=PSKDemod(Cmd, TRUE); | |
1818 | if (!ans){ | |
1819 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1820 | return 0; | |
1821 | } | |
1822 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1823 | PrintAndLog("PSK2 demoded bitstream:"); | |
1824 | // Now output the bitstream to the scrollback by line of 16 bits | |
1825 | printDemodBuff(); | |
1826 | return 1; | |
04d2721b | 1827 | } |
1828 | ||
19ff0210 | 1829 | // by marshmellow - combines all raw demod functions into one menu command |
1830 | int CmdRawDemod(const char *Cmd) | |
1831 | { | |
1832 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1833 | ||
23f0a7d8 | 1834 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { |
19ff0210 | 1835 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); |
b41534d1 | 1836 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
1837 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 1838 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
1839 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1840 | PrintAndLog(""); | |
1fbf8956 | 1841 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); |
19ff0210 | 1842 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); |
b41534d1 | 1843 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 1844 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
1845 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1846 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1847 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1848 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1849 | return 0; | |
1850 | } | |
1851 | char cmdp2 = Cmd[1]; | |
1852 | int ans = 0; | |
1853 | if (cmdp == 'f' && cmdp2 == 's'){ | |
f8f894a5 | 1854 | ans = CmdFSKrawdemod(Cmd+2); |
b41534d1 | 1855 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
f8f894a5 | 1856 | ans = Cmdaskbiphdemod(Cmd+2); |
19ff0210 | 1857 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
f8f894a5 | 1858 | ans = Cmdaskmandemod(Cmd+2); |
19ff0210 | 1859 | } else if(cmdp == 'a' && cmdp2 == 'r'){ |
f8f894a5 | 1860 | ans = Cmdaskrawdemod(Cmd+2); |
19ff0210 | 1861 | } else if(cmdp == 'n' && cmdp2 == 'r'){ |
f8f894a5 | 1862 | ans = CmdNRZrawDemod(Cmd+2); |
19ff0210 | 1863 | } else if(cmdp == 'p' && cmdp2 == '1'){ |
f8f894a5 | 1864 | ans = CmdPSK1rawDemod(Cmd+2); |
19ff0210 | 1865 | } else if(cmdp == 'p' && cmdp2 == '2'){ |
f8f894a5 | 1866 | ans = CmdPSK2rawDemod(Cmd+2); |
19ff0210 | 1867 | } else { |
1868 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1869 | } | |
1870 | return ans; | |
1871 | } | |
1872 | ||
7fe9b0b7 | 1873 | int CmdGrid(const char *Cmd) |
1874 | { | |
e0165dcf | 1875 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); |
1876 | PlotGridXdefault= PlotGridX; | |
1877 | PlotGridYdefault= PlotGridY; | |
1878 | RepaintGraphWindow(); | |
1879 | return 0; | |
7fe9b0b7 | 1880 | } |
1881 | ||
1882 | int CmdHexsamples(const char *Cmd) | |
1883 | { | |
e0165dcf | 1884 | int i, j; |
1885 | int requested = 0; | |
1886 | int offset = 0; | |
1887 | char string_buf[25]; | |
1888 | char* string_ptr = string_buf; | |
1889 | uint8_t got[BIGBUF_SIZE]; | |
1890 | ||
1891 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1892 | ||
1893 | /* if no args send something */ | |
1894 | if (requested == 0) { | |
1895 | requested = 8; | |
1896 | } | |
1897 | if (offset + requested > sizeof(got)) { | |
1898 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1899 | return 0; | |
1900 | } | |
1901 | ||
1902 | GetFromBigBuf(got,requested,offset); | |
1903 | WaitForResponse(CMD_ACK,NULL); | |
1904 | ||
1905 | i = 0; | |
1906 | for (j = 0; j < requested; j++) { | |
1907 | i++; | |
1908 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1909 | if (i == 8) { | |
1910 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1911 | PrintAndLog("%s", string_buf); | |
1912 | string_buf[0] = '\0'; | |
1913 | string_ptr = string_buf; | |
1914 | i = 0; | |
1915 | } | |
1916 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1917 | *(string_ptr - 1) = '\0'; | |
1918 | PrintAndLog("%s", string_buf); | |
1919 | string_buf[0] = '\0'; | |
1920 | } | |
1921 | } | |
1922 | return 0; | |
7fe9b0b7 | 1923 | } |
1924 | ||
7fe9b0b7 | 1925 | int CmdHide(const char *Cmd) |
1926 | { | |
e0165dcf | 1927 | HideGraphWindow(); |
1928 | return 0; | |
7fe9b0b7 | 1929 | } |
1930 | ||
78f5b1a7 | 1931 | //zero mean GraphBuffer |
7fe9b0b7 | 1932 | int CmdHpf(const char *Cmd) |
1933 | { | |
e0165dcf | 1934 | int i; |
1935 | int accum = 0; | |
7fe9b0b7 | 1936 | |
e0165dcf | 1937 | for (i = 10; i < GraphTraceLen; ++i) |
1938 | accum += GraphBuffer[i]; | |
1939 | accum /= (GraphTraceLen - 10); | |
1940 | for (i = 0; i < GraphTraceLen; ++i) | |
1941 | GraphBuffer[i] -= accum; | |
7fe9b0b7 | 1942 | |
e0165dcf | 1943 | RepaintGraphWindow(); |
1944 | return 0; | |
7fe9b0b7 | 1945 | } |
f6d9fb17 MHS |
1946 | typedef struct { |
1947 | uint8_t * buffer; | |
1948 | uint32_t numbits; | |
1949 | uint32_t position; | |
1950 | }BitstreamOut; | |
1951 | ||
1952 | bool _headBit( BitstreamOut *stream) | |
1953 | { | |
1954 | int bytepos = stream->position >> 3; // divide by 8 | |
1955 | int bitpos = (stream->position++) & 7; // mask out 00000111 | |
1956 | return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; | |
1957 | } | |
1958 | ||
1959 | uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) | |
1960 | { | |
1961 | int i; | |
1962 | uint8_t val = 0; | |
1963 | for(i =0 ; i < bits_per_sample; i++) | |
1964 | { | |
1965 | val |= (_headBit(b) << (7-i)); | |
1966 | } | |
1967 | return val; | |
1968 | } | |
7fe9b0b7 | 1969 | |
1fbf8956 | 1970 | int getSamples(const char *Cmd, bool silent) |
7fe9b0b7 | 1971 | { |
e0165dcf | 1972 | //If we get all but the last byte in bigbuf, |
1973 | // we don't have to worry about remaining trash | |
1974 | // in the last byte in case the bits-per-sample | |
1975 | // does not line up on byte boundaries | |
1976 | ||
1977 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1978 | ||
1979 | int n = strtol(Cmd, NULL, 0); | |
1980 | ||
1981 | if (n == 0) | |
1982 | n = sizeof(got); | |
1983 | ||
1984 | if (n > sizeof(got)) | |
1985 | n = sizeof(got); | |
1986 | ||
1987 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
1988 | GetFromBigBuf(got,n,0); | |
1989 | PrintAndLog("Data fetched"); | |
1990 | UsbCommand response; | |
1991 | WaitForResponse(CMD_ACK, &response); | |
1992 | uint8_t bits_per_sample = 8; | |
1993 | ||
1994 | //Old devices without this feature would send 0 at arg[0] | |
1995 | if(response.arg[0] > 0) | |
1996 | { | |
1997 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1998 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1999 | , sc->decimation); | |
2000 | bits_per_sample = sc->bits_per_sample; | |
2001 | } | |
2002 | if(bits_per_sample < 8) | |
2003 | { | |
2004 | PrintAndLog("Unpacking..."); | |
2005 | BitstreamOut bout = { got, bits_per_sample * n, 0}; | |
2006 | int j =0; | |
e6432f05 | 2007 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { |
e0165dcf | 2008 | uint8_t sample = getByte(bits_per_sample, &bout); |
2009 | GraphBuffer[j] = ((int) sample )- 128; | |
2010 | } | |
2011 | GraphTraceLen = j; | |
2012 | PrintAndLog("Unpacked %d samples" , j ); | |
2013 | }else | |
2014 | { | |
2015 | for (int j = 0; j < n; j++) { | |
2016 | GraphBuffer[j] = ((int)got[j]) - 128; | |
2017 | } | |
2018 | GraphTraceLen = n; | |
2019 | } | |
2020 | ||
2021 | RepaintGraphWindow(); | |
2022 | return 0; | |
1fbf8956 | 2023 | } |
2024 | ||
2025 | int CmdSamples(const char *Cmd) | |
2026 | { | |
e0165dcf | 2027 | return getSamples(Cmd, false); |
7fe9b0b7 | 2028 | } |
2029 | ||
d6a120a2 MHS |
2030 | int CmdTuneSamples(const char *Cmd) |
2031 | { | |
3aa4014b | 2032 | int timeout = 0; |
2033 | printf("\nMeasuring antenna characteristics, please wait..."); | |
ba1a299c | 2034 | |
3aa4014b | 2035 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING}; |
2036 | SendCommand(&c); | |
2037 | ||
2038 | UsbCommand resp; | |
2039 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
2040 | timeout++; | |
2041 | printf("."); | |
2042 | if (timeout > 7) { | |
2043 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
2044 | return 1; | |
2045 | } | |
2046 | } | |
2047 | ||
2048 | int peakv, peakf; | |
2049 | int vLf125, vLf134, vHf; | |
2050 | vLf125 = resp.arg[0] & 0xffff; | |
2051 | vLf134 = resp.arg[0] >> 16; | |
2052 | vHf = resp.arg[1] & 0xffff;; | |
2053 | peakf = resp.arg[2] & 0xffff; | |
2054 | peakv = resp.arg[2] >> 16; | |
2055 | PrintAndLog(""); | |
2056 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
2057 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
2058 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
2059 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 2060 | |
2767fc02 | 2061 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. |
2062 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
2063 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
2064 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
0d0d0499 | 2065 | |
2066 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 2067 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 2068 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 2069 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 2070 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 2071 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 2072 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 2073 | PrintAndLog("# Your HF antenna is marginal."); |
2074 | ||
0d0d0499 | 2075 | if (peakv >= LF_UNUSABLE_V) { |
2076 | for (int i = 0; i < 256; i++) { | |
2077 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
2078 | } | |
2079 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
2080 | PrintAndLog("\n"); | |
2081 | GraphTraceLen = 256; | |
2082 | ShowGraphWindow(); | |
abd16c45 | 2083 | RepaintGraphWindow(); |
ba1a299c | 2084 | } |
2085 | ||
b4fb11ba | 2086 | return 0; |
d6a120a2 MHS |
2087 | } |
2088 | ||
3aa4014b | 2089 | |
7fe9b0b7 | 2090 | int CmdLoad(const char *Cmd) |
2091 | { | |
e0165dcf | 2092 | char filename[FILE_PATH_SIZE] = {0x00}; |
2093 | int len = 0; | |
b915fda3 | 2094 | |
e0165dcf | 2095 | len = strlen(Cmd); |
2096 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2097 | memcpy(filename, Cmd, len); | |
b915fda3 | 2098 | |
e0165dcf | 2099 | FILE *f = fopen(filename, "r"); |
2100 | if (!f) { | |
2101 | PrintAndLog("couldn't open '%s'", filename); | |
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | GraphTraceLen = 0; | |
2106 | char line[80]; | |
2107 | while (fgets(line, sizeof (line), f)) { | |
2108 | GraphBuffer[GraphTraceLen] = atoi(line); | |
2109 | GraphTraceLen++; | |
2110 | } | |
2111 | fclose(f); | |
2112 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
2113 | RepaintGraphWindow(); | |
2114 | return 0; | |
7fe9b0b7 | 2115 | } |
2116 | ||
2117 | int CmdLtrim(const char *Cmd) | |
2118 | { | |
e0165dcf | 2119 | int ds = atoi(Cmd); |
cc15a118 | 2120 | if (GraphTraceLen<=0) return 0; |
e0165dcf | 2121 | for (int i = ds; i < GraphTraceLen; ++i) |
2122 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
2123 | GraphTraceLen -= ds; | |
7fe9b0b7 | 2124 | |
e0165dcf | 2125 | RepaintGraphWindow(); |
2126 | return 0; | |
7fe9b0b7 | 2127 | } |
ec75f5c1 | 2128 | |
2129 | // trim graph to input argument length | |
9ec1416a | 2130 | int CmdRtrim(const char *Cmd) |
2131 | { | |
e0165dcf | 2132 | int ds = atoi(Cmd); |
9ec1416a | 2133 | |
e0165dcf | 2134 | GraphTraceLen = ds; |
9ec1416a | 2135 | |
e0165dcf | 2136 | RepaintGraphWindow(); |
2137 | return 0; | |
9ec1416a | 2138 | } |
7fe9b0b7 | 2139 | |
7fe9b0b7 | 2140 | int CmdNorm(const char *Cmd) |
2141 | { | |
e0165dcf | 2142 | int i; |
2143 | int max = INT_MIN, min = INT_MAX; | |
7fe9b0b7 | 2144 | |
e0165dcf | 2145 | for (i = 10; i < GraphTraceLen; ++i) { |
2146 | if (GraphBuffer[i] > max) | |
2147 | max = GraphBuffer[i]; | |
2148 | if (GraphBuffer[i] < min) | |
2149 | min = GraphBuffer[i]; | |
2150 | } | |
7fe9b0b7 | 2151 | |
e0165dcf | 2152 | if (max != min) { |
2153 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 2154 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
e0165dcf | 2155 | (max - min); |
ba1a299c | 2156 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
e0165dcf | 2157 | } |
2158 | } | |
2159 | RepaintGraphWindow(); | |
2160 | return 0; | |
7fe9b0b7 | 2161 | } |
2162 | ||
2163 | int CmdPlot(const char *Cmd) | |
2164 | { | |
e0165dcf | 2165 | ShowGraphWindow(); |
2166 | return 0; | |
7fe9b0b7 | 2167 | } |
2168 | ||
2169 | int CmdSave(const char *Cmd) | |
2170 | { | |
e0165dcf | 2171 | char filename[FILE_PATH_SIZE] = {0x00}; |
2172 | int len = 0; | |
b915fda3 | 2173 | |
e0165dcf | 2174 | len = strlen(Cmd); |
2175 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2176 | memcpy(filename, Cmd, len); | |
2177 | ||
b915fda3 | 2178 | |
e0165dcf | 2179 | FILE *f = fopen(filename, "w"); |
2180 | if(!f) { | |
2181 | PrintAndLog("couldn't open '%s'", filename); | |
2182 | return 0; | |
2183 | } | |
2184 | int i; | |
2185 | for (i = 0; i < GraphTraceLen; i++) { | |
2186 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2187 | } | |
2188 | fclose(f); | |
2189 | PrintAndLog("saved to '%s'", Cmd); | |
2190 | return 0; | |
7fe9b0b7 | 2191 | } |
2192 | ||
2193 | int CmdScale(const char *Cmd) | |
2194 | { | |
e0165dcf | 2195 | CursorScaleFactor = atoi(Cmd); |
2196 | if (CursorScaleFactor == 0) { | |
2197 | PrintAndLog("bad, can't have zero scale"); | |
2198 | CursorScaleFactor = 1; | |
2199 | } | |
2200 | RepaintGraphWindow(); | |
2201 | return 0; | |
7fe9b0b7 | 2202 | } |
2203 | ||
d51b2eda MHS |
2204 | int CmdDirectionalThreshold(const char *Cmd) |
2205 | { | |
e0165dcf | 2206 | int8_t upThres = param_get8(Cmd, 0); |
2207 | int8_t downThres = param_get8(Cmd, 1); | |
2208 | ||
2209 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
2210 | ||
2211 | int lastValue = GraphBuffer[0]; | |
2212 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
2213 | ||
2214 | for (int i = 1; i < GraphTraceLen; ++i) { | |
2215 | // Apply first threshold to samples heading up | |
2216 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2217 | { | |
2218 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2219 | GraphBuffer[i] = 1; | |
2220 | } | |
2221 | // Apply second threshold to samples heading down | |
2222 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2223 | { | |
2224 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2225 | GraphBuffer[i] = -1; | |
2226 | } | |
2227 | else | |
2228 | { | |
2229 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2230 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2231 | ||
2232 | } | |
2233 | } | |
2234 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2235 | RepaintGraphWindow(); | |
2236 | return 0; | |
d51b2eda MHS |
2237 | } |
2238 | ||
7fe9b0b7 | 2239 | int CmdZerocrossings(const char *Cmd) |
2240 | { | |
e0165dcf | 2241 | // Zero-crossings aren't meaningful unless the signal is zero-mean. |
2242 | CmdHpf(""); | |
2243 | ||
2244 | int sign = 1; | |
2245 | int zc = 0; | |
2246 | int lastZc = 0; | |
2247 | ||
2248 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2249 | if (GraphBuffer[i] * sign >= 0) { | |
2250 | // No change in sign, reproduce the previous sample count. | |
2251 | zc++; | |
2252 | GraphBuffer[i] = lastZc; | |
2253 | } else { | |
2254 | // Change in sign, reset the sample count. | |
2255 | sign = -sign; | |
2256 | GraphBuffer[i] = lastZc; | |
2257 | if (sign > 0) { | |
2258 | lastZc = zc; | |
2259 | zc = 0; | |
2260 | } | |
2261 | } | |
2262 | } | |
2263 | ||
2264 | RepaintGraphWindow(); | |
2265 | return 0; | |
7fe9b0b7 | 2266 | } |
2267 | ||
ba1a299c | 2268 | static command_t CommandTable[] = |
7fe9b0b7 | 2269 | { |
e0165dcf | 2270 | {"help", CmdHelp, 1, "This help"}, |
49bbc60a | 2271 | {"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using the length of sample differences to detect the edge of a wave (use 20-45, def:25)"}, |
e0165dcf | 2272 | {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"}, |
2273 | {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, | |
2274 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, | |
fef74fdc | 2275 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
e0165dcf | 2276 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
e0165dcf | 2277 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
2278 | {"dec", CmdDec, 1, "Decimate samples"}, | |
2279 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
b2c330b3 | 2280 | {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"}, |
e0165dcf | 2281 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, |
2282 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
2283 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, | |
2284 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, | |
2285 | {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, | |
2286 | {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, | |
2287 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
2288 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
2289 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
2290 | {"hide", CmdHide, 1, "Hide graph window"}, | |
2291 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
2292 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
2293 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
2294 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
fef74fdc | 2295 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, |
e0165dcf | 2296 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
2297 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
979bba37 | 2298 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"}, |
e0165dcf | 2299 | {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, |
411105e0 | 2300 | {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"}, |
e0165dcf | 2301 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, |
2302 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
2303 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
2304 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
2305 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, | |
2306 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
e0165dcf | 2307 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
2308 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
2309 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
2310 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
2311 | {NULL, NULL, 0, NULL} | |
7fe9b0b7 | 2312 | }; |
2313 | ||
2314 | int CmdData(const char *Cmd) | |
2315 | { | |
e0165dcf | 2316 | CmdsParse(CommandTable, Cmd); |
2317 | return 0; | |
7fe9b0b7 | 2318 | } |
2319 | ||
2320 | int CmdHelp(const char *Cmd) | |
2321 | { | |
e0165dcf | 2322 | CmdsHelp(CommandTable); |
2323 | return 0; | |
7fe9b0b7 | 2324 | } |