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1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3 //
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
6 // the license.
7 //-----------------------------------------------------------------------------
8 // Data and Graph commands
9 //-----------------------------------------------------------------------------
10
11 #include <stdio.h> // also included in util.h
12 #include <string.h> // also included in util.h
13 #include <limits.h> // for CmdNorm INT_MIN && INT_MAX
14 #include "data.h" // also included in util.h
15 #include "cmddata.h"
16 #include "util.h"
17 #include "cmdmain.h"
18 #include "proxmark3.h"
19 #include "ui.h" // for show graph controls
20 #include "graph.h" // for graph data
21 #include "cmdparser.h"// already included in cmdmain.h
22 #include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
23 #include "lfdemod.h" // for demod code
24 #include "crc.h" // for pyramid checksum maxim
25 #include "crc16.h" // for FDXB demod checksum
26 #include "loclass/cipherutils.h" // for decimating samples in getsamples
27
28 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
29 uint8_t g_debugMode = 0;
30 size_t DemodBufferLen = 0;
31 static int CmdHelp(const char *Cmd);
32
33 int usage_data_printdemodbuf(void){
34 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
35 PrintAndLog("Options:");
36 PrintAndLog(" h This help");
37 PrintAndLog(" x output in hex (omit for binary output)");
38 PrintAndLog(" o <offset> enter offset in # of bits");
39 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
40 return 0;
41 }
42 int usage_data_askem410xdemod(void){
43 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
44 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
45 PrintAndLog(" <invert>, 1 for invert output");
46 PrintAndLog(" [set maximum allowed errors], default = 100.");
47 PrintAndLog("");
48 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
49 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
50 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
51 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
52 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");
53 return 0;
54 }
55 int usage_data_manrawdecode(void){
56 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
57 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
58 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
59 PrintAndLog(" [invert] invert output");
60 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
61 PrintAndLog("");
62 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
63 return 0;
64 }
65 int usage_data_biphaserawdecode(void){
66 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
67 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
68 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
69 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
70 PrintAndLog("");
71 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
72 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
73 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
74 PrintAndLog("");
75 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
76 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
77 return 0;
78 }
79 int usage_data_rawdemod(void){
80 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
81 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
82 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
83 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
84 PrintAndLog(" <options> see specific modulation help for optional parameters");
85 PrintAndLog("");
86 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
87 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
88 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
89 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
90 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
91 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
92 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
93 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
94 return 0;
95 }
96 int usage_data_rawdemod_am(void){
97 PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
98 PrintAndLog(" ['s'] optional, check for Sequence Terminator");
99 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
100 PrintAndLog(" <invert>, 1 to invert output");
101 PrintAndLog(" [set maximum allowed errors], default = 100");
102 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
103 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
104 PrintAndLog("");
105 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
106 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
107 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
108 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
109 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");
110 return 0;
111 }
112 int usage_data_rawdemod_ab(void){
113 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
114 PrintAndLog(" [offset], offset to begin biphase, default=0");
115 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
116 PrintAndLog(" <invert>, 1 to invert output");
117 PrintAndLog(" [set maximum allowed errors], default = 100");
118 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
119 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
120 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
121 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
122 PrintAndLog(" NOTE: any other arg must have previous args set to work");
123 PrintAndLog("");
124 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
125 PrintAndLog("");
126 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
127 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
128 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
129 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
130 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
131 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");
132 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");
133 return 0;
134 }
135 int usage_data_rawdemod_ar(void){
136 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
137 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
138 PrintAndLog(" <invert>, 1 to invert output");
139 PrintAndLog(" [set maximum allowed errors], default = 100");
140 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
141 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
142 PrintAndLog("");
143 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
144 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
145 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
146 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
147 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
148 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");
149 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");
150 return 0;
151 }
152 int usage_data_rawdemod_fs(void){
153 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
154 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
155 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
156 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
157 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
158 PrintAndLog("");
159 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
160 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
161 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
162 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
163 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
164 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
165 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
166 return 0;
167 }
168 int usage_data_rawdemod_nr(void){
169 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
170 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
171 PrintAndLog(" <invert>, 1 for invert output");
172 PrintAndLog(" [set maximum allowed errors], default = 100.");
173 PrintAndLog("");
174 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
175 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
176 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
177 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
178 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");
179 return 0;
180 }
181 int usage_data_rawdemod_p1(void){
182 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
183 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
184 PrintAndLog(" <invert>, 1 for invert output");
185 PrintAndLog(" [set maximum allowed errors], default = 100.");
186 PrintAndLog("");
187 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
188 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
189 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
190 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
191 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");
192 return 0;
193 }
194 int usage_data_rawdemod_p2(void){
195 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
196 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
197 PrintAndLog(" <invert>, 1 for invert output");
198 PrintAndLog(" [set maximum allowed errors], default = 100.");
199 PrintAndLog("");
200 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
201 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
202 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
203 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
204 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");
205 return 0;
206 }
207 int usage_data_autocorr(void) {
208 PrintAndLog("Usage: data autocorr [window] [g]");
209 PrintAndLog("Options:");
210 PrintAndLog(" h This help");
211 PrintAndLog(" [window] window length for correlation - default = 4000");
212 PrintAndLog(" g save back to GraphBuffer (overwrite)");
213 return 0;
214 }
215 int usage_data_undecimate(void){
216 PrintAndLog("Usage: data undec [factor]");
217 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
218 PrintAndLog("Options: ");
219 PrintAndLog(" h This help");
220 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
221 PrintAndLog("Example: 'data undec 3'");
222 return 0;
223 }
224 int usage_data_detectclock(void){
225 PrintAndLog("Usage: data detectclock [modulation] <clock>");
226 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
227 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
228 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
229 PrintAndLog("");
230 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
231 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
232 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
233 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
234 return 0;
235 }
236 int usage_data_hex2bin(void){
237 PrintAndLog("Usage: data hex2bin <hex_digits>");
238 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
239 return 0;
240 }
241 int usage_data_bin2hex(void){
242 PrintAndLog("Usage: data bin2hex <binary_digits>");
243 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
244 return 0;
245 }
246 int usage_data_buffclear(void){
247 PrintAndLog("This function clears the bigbuff on deviceside");
248 PrintAndLog("Usage: data buffclear [h]");
249 PrintAndLog("Options:");
250 PrintAndLog(" h This help");
251 return 0;
252 }
253
254 //set the demod buffer with given array of binary (one bit per byte)
255 //by marshmellow
256 void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
257 {
258 if (buff == NULL) return;
259
260 if (size >= MAX_DEMOD_BUF_LEN)
261 size = MAX_DEMOD_BUF_LEN;
262
263 for (size_t i = 0; i < size; i++)
264 DemodBuffer[i] = buff[startIdx++];
265
266 DemodBufferLen = size;
267 }
268
269 int CmdSetDebugMode(const char *Cmd) {
270 int demod = 0;
271 sscanf(Cmd, "%i", &demod);
272 g_debugMode = (uint8_t)demod;
273 return 1;
274 }
275
276 //by marshmellow
277 void printDemodBuff(void)
278 {
279 int bitLen = DemodBufferLen;
280 if (bitLen < 1) {
281 PrintAndLog("no bits found in demod buffer");
282 return;
283 }
284 if (bitLen > 512) bitLen=512; //max output to 512 bits if we have more - should be plenty
285
286 char *bin = sprint_bin_break(DemodBuffer, bitLen,16);
287 PrintAndLog("%s",bin);
288 }
289
290 int CmdPrintDemodBuff(const char *Cmd)
291 {
292 char hex[512] = {0x00};
293 bool hexMode = false;
294 bool errors = false;
295 uint32_t offset = 0; //could be size_t but no param_get16...
296 uint32_t length = 512;
297 char cmdp = 0;
298 while(param_getchar(Cmd, cmdp) != 0x00)
299 {
300 switch(param_getchar(Cmd, cmdp))
301 {
302 case 'h':
303 case 'H':
304 return usage_data_printdemodbuf();
305 case 'x':
306 case 'X':
307 hexMode = true;
308 cmdp++;
309 break;
310 case 'o':
311 case 'O':
312 offset = param_get32ex(Cmd, cmdp+1, 0, 10);
313 if (!offset) errors = true;
314 cmdp += 2;
315 break;
316 case 'l':
317 case 'L':
318 length = param_get32ex(Cmd, cmdp+1, 512, 10);
319 if (!length) errors = true;
320 cmdp += 2;
321 break;
322 default:
323 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
324 errors = true;
325 break;
326 }
327 if(errors) break;
328 }
329 //Validations
330 if(errors) return usage_data_printdemodbuf();
331
332 if (DemodBufferLen == 0) {
333 PrintAndLog("Demodbuffer is empty");
334 return 0;
335 }
336 length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
337 int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
338
339 if (hexMode){
340 char *buf = (char *) (DemodBuffer + offset);
341 numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
342 numBits = binarraytohex(hex, buf, numBits);
343 if (numBits==0) return 0;
344 PrintAndLog("DemodBuffer: %s",hex);
345 } else {
346 PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
347 }
348 return 1;
349 }
350
351 //by marshmellow
352 //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
353 int CmdGetBitStream(const char *Cmd)
354 {
355 CmdHpf(Cmd);
356 for (uint32_t i = 0; i < GraphTraceLen; i++)
357 GraphBuffer[i] = (GraphBuffer[i] >= 1) ? 1 : 0;
358
359 RepaintGraphWindow();
360 return 0;
361 }
362
363 //by marshmellow
364 //print 64 bit EM410x ID in multiple formats
365 void printEM410x(uint32_t hi, uint64_t id)
366 {
367 if (id || hi){
368 uint64_t iii=1;
369 uint64_t id2lo=0;
370 uint32_t ii=0;
371 uint32_t i=0;
372 for (ii=5; ii>0;ii--){
373 for (i=0;i<8;i++){
374 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
375 }
376 }
377 if (hi){
378 //output 88 bit em id
379 PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id);
380 } else{
381 //output 40 bit em id
382 PrintAndLog("\nEM TAG ID : %010llX", id);
383 PrintAndLog("Unique TAG ID : %010llX", id2lo);
384 PrintAndLog("\nPossible de-scramble patterns");
385 PrintAndLog("HoneyWell IdentKey {");
386 PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
387 PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF);
388 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
389 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
390 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF));
391 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF));
392 PrintAndLog("DEZ 14/IK2 : %014lld",id);
393 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
394 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
395 (id2lo & 0xf000000000) >> 36,
396 (id2lo & 0x0f00000000) >> 32,
397 (id2lo & 0x00f0000000) >> 28,
398 (id2lo & 0x000f000000) >> 24,
399 (id2lo & 0x0000f00000) >> 20,
400 (id2lo & 0x00000f0000) >> 16,
401 (id2lo & 0x000000f000) >> 12,
402 (id2lo & 0x0000000f00) >> 8,
403 (id2lo & 0x00000000f0) >> 4,
404 (id2lo & 0x000000000f)
405 );
406 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
407 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
408 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton);
409
410 uint32_t p1id = (id & 0xFFFFFF);
411 uint8_t arr[32] = {0x00};
412 int i =0;
413 int j = 23;
414 for (; i < 24; ++i, --j ){
415 arr[i] = (p1id >> i) & 1;
416 }
417
418 uint32_t p1 = 0;
419
420 p1 |= arr[23] << 21;
421 p1 |= arr[22] << 23;
422 p1 |= arr[21] << 20;
423 p1 |= arr[20] << 22;
424
425 p1 |= arr[19] << 18;
426 p1 |= arr[18] << 16;
427 p1 |= arr[17] << 19;
428 p1 |= arr[16] << 17;
429
430 p1 |= arr[15] << 13;
431 p1 |= arr[14] << 15;
432 p1 |= arr[13] << 12;
433 p1 |= arr[12] << 14;
434
435 p1 |= arr[11] << 6;
436 p1 |= arr[10] << 2;
437 p1 |= arr[9] << 7;
438 p1 |= arr[8] << 1;
439
440 p1 |= arr[7] << 0;
441 p1 |= arr[6] << 8;
442 p1 |= arr[5] << 11;
443 p1 |= arr[4] << 3;
444
445 p1 |= arr[3] << 10;
446 p1 |= arr[2] << 4;
447 p1 |= arr[1] << 5;
448 p1 |= arr[0] << 9;
449 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
450
451 uint16_t sebury1 = id & 0xFFFF;
452 uint8_t sebury2 = (id >> 16) & 0x7F;
453 uint32_t sebury3 = id & 0x7FFFFF;
454 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
455 }
456 }
457 return;
458 }
459
460 int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
461 {
462 size_t idx = 0;
463 size_t size = DemodBufferLen;
464 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
465 memcpy(BitStream, DemodBuffer, size);
466 int ans = Em410xDecode(BitStream, &size, &idx, hi, lo);
467 if ( ans < 0){
468 if (g_debugMode){
469 if (ans == -1)
470 PrintAndLog("DEBUG: Error - Em410x not only 0|1 in decoded bitstream");
471 else if (ans == -3)
472 PrintAndLog("DEBUG: Error - Em410x Size not correct: %d", size);
473 else if (ans == -4)
474 PrintAndLog("DEBUG: Error - Em410x preamble not found");
475 else if (ans == -5)
476 PrintAndLog("DEBUG: Error - Em410x parity failed");
477 }
478 return 0;
479 }
480
481 //set GraphBuffer for clone or sim command
482 setDemodBuf(BitStream, size, idx);
483 if (g_debugMode){
484 PrintAndLog("DEBUG: Em410x idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
485 printDemodBuff();
486 }
487 if (verbose){
488 PrintAndLog("EM410x pattern found: ");
489 printEM410x(*hi, *lo);
490 }
491 return 1;
492 }
493
494 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
495 {
496 bool st = TRUE;
497 if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
498 return AskEm410xDecode(verbose, hi, lo);
499 }
500
501 //by marshmellow
502 //takes 3 arguments - clock, invert and maxErr as integers
503 //attempts to demodulate ask while decoding manchester
504 //prints binary found and saves in graphbuffer for further commands
505 int CmdAskEM410xDemod(const char *Cmd)
506 {
507 char cmdp = param_getchar(Cmd, 0);
508 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
509 return usage_data_askem410xdemod();
510
511 uint64_t lo = 0;
512 uint32_t hi = 0;
513 return AskEm410xDemod(Cmd, &hi, &lo, true);
514 }
515
516 //by marshmellow
517 //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
518 // (amp may not be needed anymore)
519 //verbose will print results and demoding messages
520 //emSearch will auto search for EM410x format in bitstream
521 //askType switches decode: ask/raw = 0, ask/manchester = 1
522 int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
523 int invert = 0;
524 int clk = 0;
525 int maxErr = 100;
526 int maxLen = 0;
527 char amp = param_getchar(Cmd, 0);
528 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
529 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
530 if (!maxLen) maxLen = BIGBUF_SIZE;
531 if (invert != 0 && invert != 1) {
532 PrintAndLog("Invalid argument: %s", Cmd);
533 return 0;
534 }
535 if (clk==1){
536 invert=1;
537 clk=0;
538 }
539 size_t BitLen = getFromGraphBuf(BitStream);
540 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
541 if (BitLen<255) return 0;
542 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
543 int foundclk = 0;
544 //amp before ST check
545 if (amp == 'a' || amp == 'A') {
546 askAmp(BitStream, BitLen);
547 }
548 bool st = false;
549 if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
550 if (st) {
551 *stCheck = st;
552 clk = (clk == 0) ? foundclk : clk;
553 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
554 }
555 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, 0, askType);
556 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
557 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
558 return 0;
559 }
560 if (errCnt > maxErr){
561 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
562 return 0;
563 }
564 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
565
566 //output
567 setDemodBuf(BitStream,BitLen,0);
568 if (verbose || g_debugMode){
569 if (errCnt>0)
570 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
571 if (askType)
572 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
573 else
574 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
575 // Now output the bitstream to the scrollback by line of 16 bits
576 printDemodBuff();
577 }
578 uint64_t lo = 0;
579 uint32_t hi = 0;
580 if (emSearch)
581 AskEm410xDecode(true, &hi, &lo);
582
583 return 1;
584 }
585 int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
586 bool st = false;
587 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
588 }
589
590 //by marshmellow
591 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
592 //attempts to demodulate ask while decoding manchester
593 //prints binary found and saves in graphbuffer for further commands
594 int Cmdaskmandemod(const char *Cmd)
595 {
596 char cmdp = param_getchar(Cmd, 0);
597 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
598
599 bool st = TRUE;
600 if (Cmd[0]=='s')
601 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
602 else if (Cmd[1] == 's')
603 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
604
605 return ASKDemod(Cmd, TRUE, TRUE, 1);
606 }
607
608 //by marshmellow
609 //manchester decode
610 //stricktly take 10 and 01 and convert to 0 and 1
611 int Cmdmandecoderaw(const char *Cmd)
612 {
613 int i = 0;
614 int errCnt = 0;
615 size_t size = 0;
616 int invert = 0;
617 int maxErr = 20;
618 char cmdp = param_getchar(Cmd, 0);
619 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
620
621 if (DemodBufferLen==0) return 0;
622
623 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
624 int high = 0, low = 0;
625 for (; i < DemodBufferLen; ++i){
626 if (DemodBuffer[i] > high)
627 high=DemodBuffer[i];
628 else if(DemodBuffer[i] < low)
629 low=DemodBuffer[i];
630 BitStream[i] = DemodBuffer[i];
631 }
632 if (high>7 || low <0 ){
633 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
634 return 0;
635 }
636
637 sscanf(Cmd, "%i %i", &invert, &maxErr);
638 size = i;
639 errCnt = manrawdecode(BitStream, &size, invert);
640 if (errCnt >= maxErr){
641 PrintAndLog("Too many errors: %d",errCnt);
642 return 0;
643 }
644 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
645 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
646 if (errCnt == 0){
647 uint64_t id = 0;
648 uint32_t hi = 0;
649 size_t idx=0;
650 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
651 //need to adjust to set bitstream back to manchester encoded data
652 //setDemodBuf(BitStream, size, idx);
653 printEM410x(hi, id);
654 }
655 }
656 return 1;
657 }
658
659 //by marshmellow
660 //biphase decode
661 //take 01 or 10 = 0 and 11 or 00 = 1
662 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
663 // and "invert" default = 0 if 1 it will invert output
664 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
665 int CmdBiphaseDecodeRaw(const char *Cmd)
666 {
667 size_t size=0;
668 int offset=0, invert=0, maxErr=20, errCnt=0;
669 char cmdp = param_getchar(Cmd, 0);
670 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
671
672 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
673 if (DemodBufferLen==0){
674 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
675 return 0;
676 }
677 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
678 memcpy(BitStream, DemodBuffer, DemodBufferLen);
679 size = DemodBufferLen;
680 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
681 if (errCnt < 0){
682 PrintAndLog("Error during decode:%d", errCnt);
683 return 0;
684 }
685 if (errCnt > maxErr){
686 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
687 return 0;
688 }
689
690 if (errCnt > 0)
691 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
692
693 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
694 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
695
696 if (offset)
697 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
698 return 1;
699 }
700
701 //by marshmellow
702 // - ASK Demod then Biphase decode GraphBuffer samples
703 int ASKbiphaseDemod(const char *Cmd, bool verbose)
704 {
705 //ask raw demod GraphBuffer first
706 int offset=0, clk=0, invert=0, maxErr=0;
707 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
708
709 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
710 size_t size = getFromGraphBuf(BitStream);
711 if (size == 0 ) {
712 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
713 return 0;
714 }
715 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
716 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
717 if ( errCnt < 0 || errCnt > maxErr ) {
718 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
719 return 0;
720 }
721
722 //attempt to Biphase decode BitStream
723 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
724 if (errCnt < 0){
725 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
726 return 0;
727 }
728 if (errCnt > maxErr) {
729 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
730 return 0;
731 }
732 //success set DemodBuffer and return
733 setDemodBuf(BitStream, size, 0);
734 if (g_debugMode || verbose){
735 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
736 printDemodBuff();
737 }
738 return 1;
739 }
740 //by marshmellow - see ASKbiphaseDemod
741 int Cmdaskbiphdemod(const char *Cmd)
742 {
743 char cmdp = param_getchar(Cmd, 0);
744 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
745
746 return ASKbiphaseDemod(Cmd, TRUE);
747 }
748
749 //by marshmellow
750 //attempts to demodulate and identify a G_Prox_II verex/chubb card
751 //WARNING: if it fails during some points it will destroy the DemodBuffer data
752 // but will leave the GraphBuffer intact.
753 //if successful it will push askraw data back to demod buffer ready for emulation
754 int CmdG_Prox_II_Demod(const char *Cmd)
755 {
756 if (!ASKbiphaseDemod(Cmd, FALSE)){
757 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
758 return 0;
759 }
760 size_t size = DemodBufferLen;
761 //call lfdemod.c demod for gProxII
762 int ans = gProxII_Demod(DemodBuffer, &size);
763 if (ans < 0){
764 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
765 return 0;
766 }
767 //got a good demod of 96 bits
768 uint8_t ByteStream[8] = {0x00};
769 uint8_t xorKey = 0;
770 size_t startIdx = ans + 6; //start after 6 bit preamble
771
772 uint8_t bits_no_spacer[90];
773 //so as to not mess with raw DemodBuffer copy to a new sample array
774 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
775 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
776 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
777 if (bitLen != 72) {
778 if (g_debugMode)
779 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
780 return 0;
781 }
782 // get key and then get all 8 bytes of payload decoded
783 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
784 for (size_t idx = 0; idx < 8; idx++) {
785 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
786 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
787 }
788
789 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
790 uint8_t fmtLen = ByteStream[0]>>2;
791 uint32_t FC = 0;
792 uint32_t Card = 0;
793 //get raw 96 bits to print
794 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
795 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
796 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
797 bool unknown = FALSE;
798 switch(fmtLen) {
799 case 36:
800 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
801 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
802 break;
803 case 26:
804 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
805 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
806 break;
807 default :
808 unknown = TRUE;
809 break;
810 }
811 if ( !unknown)
812 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
813 else
814 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
815
816 setDemodBuf(DemodBuffer+ans, 96, 0);
817 return 1;
818 }
819
820 //by marshmellow
821 //see ASKDemod for what args are accepted
822 int CmdVikingDemod(const char *Cmd)
823 {
824 if (!ASKDemod(Cmd, false, false, 1)) {
825 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
826 return 0;
827 }
828 size_t size = DemodBufferLen;
829 //call lfdemod.c demod for Viking
830 int ans = VikingDemod_AM(DemodBuffer, &size);
831 if (ans < 0) {
832 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
833 return 0;
834 }
835 //got a good demod
836 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
837 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
838 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
839 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
840 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
841 PrintAndLog("Raw: %08X%08X", raw1,raw2);
842 setDemodBuf(DemodBuffer+ans, 64, 0);
843 return 1;
844 }
845
846 //by marshmellow - see ASKDemod
847 int Cmdaskrawdemod(const char *Cmd)
848 {
849 char cmdp = param_getchar(Cmd, 0);
850 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
851
852 return ASKDemod(Cmd, TRUE, FALSE, 0);
853 }
854
855 int AutoCorrelate(int window, bool SaveGrph, bool verbose)
856 {
857 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
858 size_t Correlation = 0;
859 int maxSum = 0;
860 int lastMax = 0;
861 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
862 for (int i = 0; i < GraphTraceLen - window; ++i) {
863 int sum = 0;
864 for (int j = 0; j < window; ++j) {
865 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
866 }
867 CorrelBuffer[i] = sum;
868 if (sum >= maxSum-100 && sum <= maxSum+100){
869 //another max
870 Correlation = i-lastMax;
871 lastMax = i;
872 if (sum > maxSum) maxSum = sum;
873 } else if (sum > maxSum){
874 maxSum=sum;
875 lastMax = i;
876 }
877 }
878 if (Correlation==0){
879 //try again with wider margin
880 for (int i = 0; i < GraphTraceLen - window; i++){
881 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
882 //another max
883 Correlation = i-lastMax;
884 lastMax = i;
885 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
886 }
887 }
888 }
889 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
890
891 if (SaveGrph){
892 GraphTraceLen = GraphTraceLen - window;
893 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
894 RepaintGraphWindow();
895 }
896 return Correlation;
897 }
898
899 int CmdAutoCorr(const char *Cmd)
900 {
901 char cmdp = param_getchar(Cmd, 0);
902 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
903 int window = 4000; //set default
904 char grph = 0;
905 bool updateGrph = FALSE;
906 sscanf(Cmd, "%i %c", &window, &grph);
907
908 if (window >= GraphTraceLen) {
909 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
910 return 0;
911 }
912 if (grph == 'g') updateGrph = TRUE;
913 return AutoCorrelate(window, updateGrph, TRUE);
914 }
915
916 int CmdBitsamples(const char *Cmd)
917 {
918 int cnt = 0;
919 uint8_t got[12288];
920
921 GetFromBigBuf(got, sizeof(got), 0);
922 WaitForResponse(CMD_ACK, NULL);
923
924 for (int j = 0; j < sizeof(got); j++) {
925 for (int k = 0; k < 8; k++) {
926 if(got[j] & (1 << (7 - k)))
927 GraphBuffer[cnt++] = 1;
928 else
929 GraphBuffer[cnt++] = 0;
930 }
931 }
932 GraphTraceLen = cnt;
933 RepaintGraphWindow();
934 return 0;
935 }
936
937 int CmdBuffClear(const char *Cmd)
938 {
939 char cmdp = param_getchar(Cmd, 0);
940 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
941
942 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
943 SendCommand(&c);
944 ClearGraph(true);
945 return 0;
946 }
947
948 int CmdDec(const char *Cmd)
949 {
950 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
951 GraphBuffer[i] = GraphBuffer[i * 2];
952
953 GraphTraceLen >>= 2;
954 PrintAndLog("decimated by 2");
955 RepaintGraphWindow();
956 return 0;
957 }
958 /**
959 * Undecimate - I'd call it 'interpolate', but we'll save that
960 * name until someone does an actual interpolation command, not just
961 * blindly repeating samples
962 * @param Cmd
963 * @return
964 */
965 int CmdUndec(const char *Cmd)
966 {
967 char cmdp = param_getchar(Cmd, 0);
968 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
969
970 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
971
972 //We have memory, don't we?
973 int swap[MAX_GRAPH_TRACE_LEN] = {0};
974 uint32_t g_index = 0, s_index = 0;
975 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
976 {
977 int count = 0;
978 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
979 swap[s_index+count] = GraphBuffer[g_index];
980 s_index += count;
981 g_index++;
982 }
983
984 memcpy(GraphBuffer, swap, s_index * sizeof(int));
985 GraphTraceLen = s_index;
986 RepaintGraphWindow();
987 return 0;
988 }
989
990 //by marshmellow
991 //shift graph zero up or down based on input + or -
992 int CmdGraphShiftZero(const char *Cmd)
993 {
994 int shift = 0, shiftedVal = 0;
995 //set options from parameters entered with the command
996 sscanf(Cmd, "%i", &shift);
997
998 for(int i = 0; i < GraphTraceLen; i++){
999 if ( i+shift >= GraphTraceLen)
1000 shiftedVal = GraphBuffer[i];
1001 else
1002 shiftedVal = GraphBuffer[i] + shift;
1003
1004 if (shiftedVal > 127)
1005 shiftedVal = 127;
1006 else if (shiftedVal < -127)
1007 shiftedVal = -127;
1008 GraphBuffer[i] = shiftedVal;
1009 }
1010 CmdNorm("");
1011 return 0;
1012 }
1013
1014 //by marshmellow
1015 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
1016 //similar to dirtheshold, threshold commands
1017 //takes a threshold length which is the measured length between two samples then determines an edge
1018 int CmdAskEdgeDetect(const char *Cmd)
1019 {
1020 int thresLen = 25;
1021 int last = 0;
1022 sscanf(Cmd, "%i", &thresLen);
1023
1024 for(int i = 1; i < GraphTraceLen; ++i){
1025 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1026 last = 127;
1027 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1028 last = -127;
1029
1030 GraphBuffer[i-1] = last;
1031 }
1032 RepaintGraphWindow();
1033 return 0;
1034 }
1035
1036 /* Print our clock rate */
1037 // uses data from graphbuffer
1038 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
1039 int CmdDetectClockRate(const char *Cmd)
1040 {
1041 char cmdp = param_getchar(Cmd, 0);
1042 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1043 return usage_data_detectclock();
1044
1045 int ans = 0;
1046 switch ( cmdp ) {
1047 case 'a' :
1048 case 'A' :
1049 ans = GetAskClock(Cmd+1, true, false);
1050 break;
1051 case 'f' :
1052 case 'F' :
1053 ans = GetFskClock("", true, false);
1054 break;
1055 case 'n' :
1056 case 'N' :
1057 ans = GetNrzClock("", true, false);
1058 break;
1059 case 'p' :
1060 case 'P' :
1061 ans = GetPskClock("", true, false);
1062 break;
1063 default :
1064 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1065 break;
1066 }
1067 return ans;
1068 }
1069
1070 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1071 {
1072 static char fType[8];
1073 memset(fType, 0x00, 8);
1074 char *fskType = fType;
1075 if (fchigh==10 && fclow==8){
1076 if (invert) //fsk2a
1077 memcpy(fskType, "FSK2a", 5);
1078 else //fsk2
1079 memcpy(fskType, "FSK2", 4);
1080 } else if (fchigh == 8 && fclow == 5) {
1081 if (invert)
1082 memcpy(fskType, "FSK1", 4);
1083 else
1084 memcpy(fskType, "FSK1a", 5);
1085 } else {
1086 memcpy(fskType, "FSK??", 5);
1087 }
1088 return fskType;
1089 }
1090
1091 //by marshmellow
1092 //fsk raw demod and print binary
1093 //takes 4 arguments - Clock, invert, fchigh, fclow
1094 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1095 int FSKrawDemod(const char *Cmd, bool verbose)
1096 {
1097 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1098 uint8_t rfLen, invert, fchigh, fclow;
1099
1100 //set defaults
1101 //set options from parameters entered with the command
1102 rfLen = param_get8(Cmd, 0);
1103 invert = param_get8(Cmd, 1);
1104 fchigh = param_get8(Cmd, 2);
1105 fclow = param_get8(Cmd, 3);
1106 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
1107 if (rfLen==1) {
1108 invert = 1; //if invert option only is used
1109 rfLen = 0;
1110 }
1111 }
1112
1113 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1114 size_t BitLen = getFromGraphBuf(BitStream);
1115 if (BitLen==0) return 0;
1116 //get field clock lengths
1117 uint16_t fcs=0;
1118 if (!fchigh || !fclow) {
1119 fcs = countFC(BitStream, BitLen, 1);
1120 if (!fcs) {
1121 fchigh = 10;
1122 fclow = 8;
1123 } else {
1124 fchigh = (fcs >> 8) & 0x00FF;
1125 fclow = fcs & 0x00FF;
1126 }
1127 }
1128 //get bit clock length
1129 if (!rfLen) {
1130 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
1131 if (!rfLen) rfLen = 50;
1132 }
1133 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
1134 if (size > 0) {
1135 setDemodBuf(BitStream, size, 0);
1136
1137 // Now output the bitstream to the scrollback by line of 16 bits
1138 if (verbose || g_debugMode) {
1139 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
1140 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
1141 printDemodBuff();
1142 }
1143 return 1;
1144 } else {
1145 if (g_debugMode) PrintAndLog("no FSK data found");
1146 }
1147 return 0;
1148 }
1149
1150 //by marshmellow
1151 //fsk raw demod and print binary
1152 //takes 4 arguments - Clock, invert, fchigh, fclow
1153 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1154 int CmdFSKrawdemod(const char *Cmd)
1155 {
1156 char cmdp = param_getchar(Cmd, 0);
1157 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
1158
1159 return FSKrawDemod(Cmd, TRUE);
1160 }
1161
1162 //by marshmellow (based on existing demod + holiman's refactor)
1163 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1164 //print full HID Prox ID and some bit format details if found
1165 int CmdFSKdemodHID(const char *Cmd)
1166 {
1167 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1168 uint32_t hi2=0, hi=0, lo=0;
1169
1170 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1171 size_t BitLen = getFromGraphBuf(BitStream);
1172 if (BitLen==0) return 0;
1173 //get binary from fsk wave
1174 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1175 if (idx<0){
1176 if (g_debugMode){
1177 if (idx==-1){
1178 PrintAndLog("DEBUG: Error - HID just noise detected");
1179 } else if (idx == -2) {
1180 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
1181 } else if (idx == -3) {
1182 PrintAndLog("DEBUG: Error - HID preamble not found");
1183 } else if (idx == -4) {
1184 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
1185 } else {
1186 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
1187 }
1188 }
1189 return 0;
1190 }
1191 if (hi2==0 && hi==0 && lo==0) {
1192 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
1193 return 0;
1194 }
1195 if (hi2 != 0){ //extra large HID tags
1196 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
1197 }
1198 else { //standard HID tags <38 bits
1199 uint8_t fmtLen = 0;
1200 uint32_t fc = 0;
1201 uint32_t cardnum = 0;
1202 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1203 uint32_t lo2=0;
1204 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1205 uint8_t idx3 = 1;
1206 while(lo2>1){ //find last bit set to 1 (format len bit)
1207 lo2=lo2>>1;
1208 idx3++;
1209 }
1210 fmtLen =idx3+19;
1211 fc =0;
1212 cardnum=0;
1213 if(fmtLen==26){
1214 cardnum = (lo>>1)&0xFFFF;
1215 fc = (lo>>17)&0xFF;
1216 }
1217 if(fmtLen==34){
1218 cardnum = (lo>>1)&0xFFFF;
1219 fc= ((hi&1)<<15)|(lo>>17);
1220 }
1221 if(fmtLen==35){
1222 cardnum = (lo>>1)&0xFFFFF;
1223 fc = ((hi&1)<<11)|(lo>>21);
1224 }
1225 }
1226 else { //if bit 38 is not set then 37 bit format is used
1227 fmtLen = 37;
1228 fc = 0;
1229 cardnum = 0;
1230 if(fmtLen == 37){
1231 cardnum = (lo>>1)&0x7FFFF;
1232 fc = ((hi&0xF)<<12)|(lo>>20);
1233 }
1234 }
1235 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
1236 }
1237 setDemodBuf(BitStream,BitLen,idx);
1238 if (g_debugMode){
1239 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1240 printDemodBuff();
1241 }
1242 return 1;
1243 }
1244
1245 //by marshmellow
1246 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1247 //print full Paradox Prox ID and some bit format details if found
1248 int CmdFSKdemodParadox(const char *Cmd)
1249 {
1250 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1251 uint32_t hi2=0, hi=0, lo=0;
1252
1253 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1254 size_t BitLen = getFromGraphBuf(BitStream);
1255 if (BitLen==0) return 0;
1256 //get binary from fsk wave
1257 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1258 if (idx<0){
1259 if (g_debugMode){
1260 if (idx==-1){
1261 PrintAndLog("DEBUG: Error - Paradox just noise detected");
1262 } else if (idx == -2) {
1263 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
1264 } else if (idx == -3) {
1265 PrintAndLog("DEBUG: Error - Paradox preamble not found");
1266 } else if (idx == -4) {
1267 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
1268 } else {
1269 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
1270 }
1271 }
1272 return 0;
1273 }
1274 if (hi2==0 && hi==0 && lo==0){
1275 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
1276 return 0;
1277 }
1278 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1279 uint32_t cardnum = (lo>>10)&0xFFFF;
1280 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1281 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1282 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1283
1284 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1285 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1286 setDemodBuf(BitStream,BitLen,idx);
1287 if (g_debugMode){
1288 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1289 printDemodBuff();
1290 }
1291 return 1;
1292 }
1293
1294 //by marshmellow
1295 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1296 //print ioprox ID and some format details
1297 int CmdFSKdemodIO(const char *Cmd)
1298 {
1299 int retval = 0;
1300 int idx = 0;
1301 char crcStr[20];
1302 memset(crcStr, 0x00, sizeof(crcStr) );
1303
1304 //something in graphbuffer?
1305 if (GraphTraceLen < 65) {
1306 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
1307 return retval;
1308 }
1309 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1310 size_t bitlen = getFromGraphBuf(BitStream);
1311 if (bitlen == 0) return retval;
1312
1313 //get binary from fsk wave
1314 idx = IOdemodFSK(BitStream, bitlen);
1315 if (idx<0){
1316 if (g_debugMode){
1317 if (idx==-1){
1318 PrintAndLog("DEBUG: Error - IO prox just noise detected");
1319 } else if (idx == -2) {
1320 PrintAndLog("DEBUG: Error - IO prox not enough samples");
1321 } else if (idx == -3) {
1322 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
1323 } else if (idx == -4) {
1324 PrintAndLog("DEBUG: Error - IO prox preamble not found");
1325 } else if (idx == -5) {
1326 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
1327 } else {
1328 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
1329 }
1330 }
1331 return retval;
1332 }
1333 if (idx==0){
1334 if (g_debugMode){
1335 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
1336 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
1337 }
1338 return retval;
1339 }
1340 //Index map
1341 //0 10 20 30 40 50 60
1342 //| | | | | | |
1343 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1344 //-----------------------------------------------------------------------------
1345 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1346 //
1347 //XSF(version)facility:codeone+codetwo (raw)
1348 //Handle the data
1349 if (idx + 64 > bitlen) {
1350 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
1351 return retval;
1352 }
1353
1354 if (g_debugMode) {
1355 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]);
1356 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]);
1357 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]);
1358 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]);
1359 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]);
1360 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]);
1361 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]);
1362 }
1363
1364 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1365 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1366 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1367 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1368 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1369 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1370 uint16_t calccrc = 0;
1371
1372 for (uint8_t i = 1; i < 6; ++i){
1373 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
1374 }
1375 calccrc &= 0xff;
1376 calccrc = 0xff - calccrc;
1377
1378 if (crc == calccrc) {
1379 snprintf(crcStr, 3, "ok");
1380 retval = 1;
1381 } else {
1382 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
1383
1384 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1385 retval = 0;
1386 }
1387
1388 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
1389 setDemodBuf(BitStream,64,idx);
1390 if (g_debugMode){
1391 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
1392 printDemodBuff();
1393 }
1394 return retval;
1395 }
1396
1397 //by marshmellow
1398 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1399 //print full AWID Prox ID and some bit format details if found
1400 int CmdFSKdemodAWID(const char *Cmd)
1401 {
1402 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1403 size_t size = getFromGraphBuf(BitStream);
1404 if (size==0) return 0;
1405
1406 //get binary from fsk wave
1407 int idx = AWIDdemodFSK(BitStream, &size);
1408 if (idx<=0){
1409 if (g_debugMode){
1410 if (idx == -1)
1411 PrintAndLog("DEBUG: Error - AWID not enough samples");
1412 else if (idx == -2)
1413 PrintAndLog("DEBUG: Error - AWID only noise found");
1414 else if (idx == -3)
1415 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
1416 else if (idx == -4)
1417 PrintAndLog("DEBUG: Error - AWID preamble not found");
1418 else if (idx == -5)
1419 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
1420 else
1421 PrintAndLog("DEBUG: Error - AWID error %d",idx);
1422 }
1423 return 0;
1424 }
1425
1426 // Index map
1427 // 0 10 20 30 40 50 60
1428 // | | | | | | |
1429 // 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
1430 // -----------------------------------------------------------------------------
1431 // 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
1432 // 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
1433 // |---26 bit---| |-----117----||-------------142-------------|
1434 // b = format bit len, o = odd parity of last 3 bits
1435 // f = facility code, c = card number
1436 // w = wiegand parity
1437 // (26 bit format shown)
1438
1439 //get raw ID before removing parities
1440 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1441 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1442 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1443 setDemodBuf(BitStream,96,idx);
1444
1445 size = removeParity(BitStream, idx+8, 4, 1, 88);
1446 if (size != 66){
1447 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
1448 return 0;
1449 }
1450 // ok valid card found!
1451
1452 // Index map
1453 // 0 10 20 30 40 50 60
1454 // | | | | | | |
1455 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1456 // -----------------------------------------------------------------------------
1457 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1458 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1459 // |26 bit| |-117--| |-----142------|
1460 //
1461 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1462 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1463 // |50 bit| |----4000------| |-----------2248975------------|
1464 // b = format bit len, o = odd parity of last 3 bits
1465 // f = facility code, c = card number
1466 // w = wiegand parity
1467
1468 uint32_t fc = 0;
1469 uint32_t cardnum = 0;
1470 uint32_t code1 = 0;
1471 uint32_t code2 = 0;
1472 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
1473
1474 switch(fmtLen) {
1475 case 26:
1476 fc = bytebits_to_byte(BitStream + 9, 8);
1477 cardnum = bytebits_to_byte(BitStream + 17, 16);
1478 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
1479 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1480 break;
1481 case 34:
1482 fc = bytebits_to_byte(BitStream + 9, 8);
1483 cardnum = bytebits_to_byte(BitStream + 17, 24);
1484 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1485 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1486 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1487 break;
1488 case 37:
1489 fc = bytebits_to_byte(BitStream + 9, 13);
1490 cardnum = bytebits_to_byte(BitStream + 22, 18);
1491 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1492 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1493 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1494 break;
1495 // case 40:
1496 // break;
1497 case 50:
1498 fc = bytebits_to_byte(BitStream + 9, 16);
1499 cardnum = bytebits_to_byte(BitStream + 25, 32);
1500 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1501 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1502 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1503 break;
1504 default:
1505 if (fmtLen > 32 ) {
1506 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1507 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1508 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1509 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1510 } else {
1511 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1512 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1513 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1514 }
1515 break;
1516 }
1517
1518 if (g_debugMode){
1519 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1520 printDemodBuff();
1521 }
1522 return 1;
1523 }
1524
1525 //by marshmellow
1526 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1527 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1528 int CmdFSKdemodPyramid(const char *Cmd)
1529 {
1530 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1531 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1532 size_t size = getFromGraphBuf(BitStream);
1533 if (size==0) return 0;
1534
1535 //get binary from fsk wave
1536 int idx = PyramiddemodFSK(BitStream, &size);
1537 if (idx < 0){
1538 if (g_debugMode){
1539 if (idx == -5)
1540 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
1541 else if (idx == -1)
1542 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
1543 else if (idx == -2)
1544 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
1545 else if (idx == -3)
1546 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
1547 else if (idx == -4)
1548 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
1549 else
1550 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
1551 }
1552 return 0;
1553 }
1554 // Index map
1555 // 0 10 20 30 40 50 60
1556 // | | | | | | |
1557 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1558 // -----------------------------------------------------------------------------
1559 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1560 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1561
1562 // 64 70 80 90 100 110 120
1563 // | | | | | | |
1564 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1565 // -----------------------------------------------------------------------------
1566 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1567 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1568 // |---115---||---------71---------|
1569 // s = format start bit, o = odd parity of last 7 bits
1570 // f = facility code, c = card number
1571 // w = wiegand parity, x = extra space for other formats
1572 // p = CRC8maxim checksum
1573 // (26 bit format shown)
1574
1575 //get bytes for checksum calc
1576 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1577 uint8_t csBuff[14] = {0x00};
1578 for (uint8_t i = 0; i < 13; i++){
1579 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1580 }
1581 //check checksum calc
1582 //checksum calc thanks to ICEMAN!!
1583 uint32_t checkCS = CRC8Maxim(csBuff, 13);
1584
1585 //get raw ID before removing parities
1586 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1587 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1588 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1589 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1590 setDemodBuf(BitStream, 128, idx);
1591
1592 size = removeParity(BitStream, idx+8, 8, 1, 120);
1593 if (size != 105){
1594 if (g_debugMode) {
1595 if ( size == 0)
1596 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1597 else
1598 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1599 }
1600 return 0;
1601 }
1602
1603 // ok valid card found!
1604
1605 // Index map
1606 // 0 10 20 30 40 50 60 70
1607 // | | | | | | | |
1608 // 01234567890123456789012345678901234567890123456789012345678901234567890
1609 // -----------------------------------------------------------------------
1610 // 00000000000000000000000000000000000000000000000000000000000000000000000
1611 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1612
1613 // 71 80 90 100
1614 // | | | |
1615 // 1 2 34567890 1234567890123456 7 8901234
1616 // ---------------------------------------
1617 // 1 1 01110011 0000000001000110 0 1001010
1618 // s w ffffffff cccccccccccccccc w ppppppp
1619 // |--115-| |------71------|
1620 // s = format start bit, o = odd parity of last 7 bits
1621 // f = facility code, c = card number
1622 // w = wiegand parity, x = extra space for other formats
1623 // p = CRC8-Maxim checksum
1624 // (26 bit format shown)
1625
1626 //find start bit to get fmtLen
1627 int j;
1628 for (j=0; j < size; ++j){
1629 if(BitStream[j]) break;
1630 }
1631
1632 uint8_t fmtLen = size-j-8;
1633 uint32_t fc = 0;
1634 uint32_t cardnum = 0;
1635 uint32_t code1 = 0;
1636
1637 if ( fmtLen == 26 ){
1638 fc = bytebits_to_byte(BitStream+73, 8);
1639 cardnum = bytebits_to_byte(BitStream+81, 16);
1640 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1641 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);
1642 } else if (fmtLen == 45) {
1643 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
1644 fc = bytebits_to_byte(BitStream+53, 10);
1645 cardnum = bytebits_to_byte(BitStream+63, 32);
1646 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1647 } else {
1648 cardnum = bytebits_to_byte(BitStream+81, 16);
1649 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1650 }
1651 if (checksum == checkCS)
1652 PrintAndLog("Checksum %02x passed", checksum);
1653 else
1654 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1655
1656 if (g_debugMode){
1657 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1658 printDemodBuff();
1659 }
1660 return 1;
1661 }
1662
1663 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1664 // 8 databits + 1 parity (1)
1665 // CIITT 16 chksum
1666 // NATIONAL CODE, ICAR database
1667 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1668 // FLAG (animal/non-animal)
1669 /*
1670 38 IDbits
1671 10 country code
1672 1 extra app bit
1673 14 reserved bits
1674 1 animal bit
1675 16 ccitt CRC chksum over 64bit ID CODE.
1676 24 appli bits.
1677
1678 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1679 */
1680 int CmdFDXBdemodBI(const char *Cmd){
1681
1682 int invert = 1;
1683 int clk = 32;
1684 int errCnt = 0;
1685 int maxErr = 0;
1686 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1687 size_t size = getFromGraphBuf(BitStream);
1688
1689 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1690 if ( errCnt < 0 || errCnt > maxErr ) {
1691 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
1692 return 0;
1693 }
1694
1695 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1696 if (errCnt < 0 || errCnt > maxErr ) {
1697 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
1698 return 0;
1699 }
1700
1701 int preambleIndex = FDXBdemodBI(BitStream, &size);
1702 if (preambleIndex < 0){
1703 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
1704 return 0;
1705 }
1706 if (size != 128) {
1707 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
1708 return 0;
1709 }
1710
1711 setDemodBuf(BitStream, 128, preambleIndex);
1712
1713 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1714 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
1715 if ( size != 104 ) {
1716 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
1717 return 0;
1718 }
1719 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1720
1721 //got a good demod
1722 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1723 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1724 uint8_t dataBlockBit = BitStream[48];
1725 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1726 uint8_t animalBit = BitStream[63];
1727 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1728 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1729
1730 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
1731 uint8_t raw[8];
1732 num_to_bytes(rawid, 8, raw);
1733
1734 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1735
1736 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1737 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
1738 PrintAndLog("National Code: %012llu", NationalCode);
1739 PrintAndLog("CountryCode: %04u", countryCode);
1740
1741 PrintAndLog("Reserved/RFU: %u", reservedCode);
1742 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1743 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
1744 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1745
1746 if (g_debugMode) {
1747 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1748 char *bin = sprint_bin_break(BitStream,size,16);
1749 PrintAndLog("DEBUG BinStream:\n%s",bin);
1750 }
1751 return 1;
1752 }
1753
1754
1755 //by marshmellow
1756 //attempt to psk1 demod graph buffer
1757 int PSKDemod(const char *Cmd, bool verbose)
1758 {
1759 int invert=0;
1760 int clk=0;
1761 int maxErr=100;
1762 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1763 if (clk==1){
1764 invert=1;
1765 clk=0;
1766 }
1767 if (invert != 0 && invert != 1) {
1768 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
1769 return 0;
1770 }
1771 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1772 size_t BitLen = getFromGraphBuf(BitStream);
1773 if (BitLen==0) return 0;
1774 uint8_t carrier=countFC(BitStream, BitLen, 0);
1775 if (carrier!=2 && carrier!=4 && carrier!=8){
1776 //invalid carrier
1777 return 0;
1778 }
1779 if (g_debugMode){
1780 PrintAndLog("Carrier: rf/%d",carrier);
1781 }
1782 int errCnt=0;
1783 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1784 if (errCnt > maxErr){
1785 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1786 return 0;
1787 }
1788 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1789 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1790 return 0;
1791 }
1792 if (verbose || g_debugMode){
1793 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
1794 if (errCnt>0){
1795 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1796 }
1797 }
1798 //prime demod buffer for output
1799 setDemodBuf(BitStream,BitLen,0);
1800 return 1;
1801 }
1802
1803 // Indala 26 bit decode
1804 // by marshmellow
1805 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1806 int CmdIndalaDecode(const char *Cmd)
1807 {
1808 int ans;
1809 if (strlen(Cmd)>0){
1810 ans = PSKDemod(Cmd, 0);
1811 } else{ //default to RF/32
1812 ans = PSKDemod("32", 0);
1813 }
1814
1815 if (!ans){
1816 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
1817 return 0;
1818 }
1819
1820 uint8_t invert = 0;
1821 size_t size = DemodBufferLen;
1822 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1823 if (startIdx < 0 || size > 224) {
1824 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
1825 return -1;
1826 }
1827 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
1828 if (invert)
1829 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
1830
1831 //convert UID to HEX
1832 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1833 uid1 = bytebits_to_byte(DemodBuffer,32);
1834 uid2 = bytebits_to_byte(DemodBuffer+32,32);
1835 if (DemodBufferLen==64){
1836 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1837 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1838 );
1839 } else {
1840 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1841 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1842 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1843 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1844 uid7 = bytebits_to_byte(DemodBuffer+192,32);
1845 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1846 DemodBufferLen,
1847 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1848 );
1849 }
1850 if (g_debugMode){
1851 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
1852 printDemodBuff();
1853 }
1854 return 1;
1855 }
1856
1857 int CmdPSKNexWatch(const char *Cmd)
1858 {
1859 if (!PSKDemod("", false)) return 0;
1860
1861 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};
1862 size_t startIdx = 0, size = DemodBufferLen;
1863
1864 // sanity check.
1865 if ( size < sizeof(preamble) + 100) return 0;
1866
1867 bool invert = false;
1868 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1869 // if didn't find preamble try again inverting
1870 if (!PSKDemod("1", false)) return 0;
1871
1872 size = DemodBufferLen;
1873 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1874 invert = true;
1875 }
1876 if (size != 128) return 0;
1877 setDemodBuf(DemodBuffer, size, startIdx+4);
1878 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1879 //get ID
1880 uint32_t ID = 0;
1881 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1882 for (uint8_t idx=0; idx<8; idx++){
1883 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1884 }
1885 }
1886 //parity check (TBD)
1887
1888 //checksum check (TBD)
1889
1890 //output
1891 PrintAndLog("NexWatch ID: %d", ID);
1892 if (invert){
1893 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
1894 for (uint8_t idx=0; idx<size; idx++)
1895 DemodBuffer[idx] ^= 1;
1896 }
1897
1898 CmdPrintDemodBuff("x");
1899 return 1;
1900 }
1901
1902 int CmdPSKIdteck(const char *Cmd) {
1903
1904 if (!PSKDemod("", false)) {
1905 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1906 return 0;
1907 }
1908 size_t size = DemodBufferLen;
1909
1910 //get binary from PSK1 wave
1911 int idx = IdteckDemodPSK(DemodBuffer, &size);
1912 if (idx < 0){
1913 if (g_debugMode){
1914 if (idx == -1)
1915 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1916 else if (idx == -2)
1917 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1918 else if (idx == -3)
1919 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1920 else
1921 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1922 }
1923
1924 // if didn't find preamble try again inverting
1925 if (!PSKDemod("1", false)) {
1926 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1927 return 0;
1928 }
1929 idx = IdteckDemodPSK(DemodBuffer, &size);
1930 if (idx < 0){
1931 if (g_debugMode){
1932 if (idx == -1)
1933 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1934 else if (idx == -2)
1935 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1936 else if (idx == -3)
1937 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1938 else
1939 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1940 }
1941 return 0;
1942 }
1943 }
1944 setDemodBuf(DemodBuffer, 64, idx);
1945
1946 //got a good demod
1947 uint32_t id = 0;
1948 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1949 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1950
1951 //parity check (TBD)
1952 //checksum check (TBD)
1953
1954 //output
1955 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1956 return 1;
1957 }
1958
1959 // by marshmellow
1960 // takes 3 arguments - clock, invert, maxErr as integers
1961 // attempts to demodulate nrz only
1962 // prints binary found and saves in demodbuffer for further commands
1963 int NRZrawDemod(const char *Cmd, bool verbose)
1964 {
1965 int invert=0;
1966 int clk=0;
1967 int maxErr=100;
1968 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1969 if (clk==1){
1970 invert=1;
1971 clk=0;
1972 }
1973 if (invert != 0 && invert != 1) {
1974 PrintAndLog("Invalid argument: %s", Cmd);
1975 return 0;
1976 }
1977 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1978 size_t BitLen = getFromGraphBuf(BitStream);
1979 if (BitLen==0) return 0;
1980 int errCnt=0;
1981 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
1982 if (errCnt > maxErr){
1983 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1984 return 0;
1985 }
1986 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1987 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1988 return 0;
1989 }
1990 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1991 //prime demod buffer for output
1992 setDemodBuf(BitStream,BitLen,0);
1993
1994 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1995 if (verbose || g_debugMode) {
1996 PrintAndLog("NRZ demoded bitstream:");
1997 // Now output the bitstream to the scrollback by line of 16 bits
1998 printDemodBuff();
1999 }
2000 return 1;
2001 }
2002
2003 int CmdNRZrawDemod(const char *Cmd)
2004 {
2005 char cmdp = param_getchar(Cmd, 0);
2006 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
2007
2008 return NRZrawDemod(Cmd, TRUE);
2009 }
2010
2011 // by marshmellow
2012 // takes 3 arguments - clock, invert, maxErr as integers
2013 // attempts to demodulate psk only
2014 // prints binary found and saves in demodbuffer for further commands
2015 int CmdPSK1rawDemod(const char *Cmd)
2016 {
2017 int ans;
2018 char cmdp = param_getchar(Cmd, 0);
2019 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
2020
2021 ans = PSKDemod(Cmd, TRUE);
2022 //output
2023 if (!ans){
2024 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2025 return 0;
2026 }
2027 PrintAndLog("PSK1 demoded bitstream:");
2028 // Now output the bitstream to the scrollback by line of 16 bits
2029 printDemodBuff();
2030 return 1;
2031 }
2032
2033 // by marshmellow
2034 // takes same args as cmdpsk1rawdemod
2035 int CmdPSK2rawDemod(const char *Cmd)
2036 {
2037 int ans = 0;
2038 char cmdp = param_getchar(Cmd, 0);
2039 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
2040
2041 ans = PSKDemod(Cmd, TRUE);
2042 if (!ans){
2043 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2044 return 0;
2045 }
2046 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2047 PrintAndLog("PSK2 demoded bitstream:");
2048 // Now output the bitstream to the scrollback by line of 16 bits
2049 printDemodBuff();
2050 return 1;
2051 }
2052
2053 // by marshmellow - combines all raw demod functions into one menu command
2054 int CmdRawDemod(const char *Cmd)
2055 {
2056 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
2057 char cmdp2 = Cmd[1];
2058 int ans = 0;
2059
2060 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
2061 return usage_data_rawdemod();
2062
2063 if (cmdp == 'f' && cmdp2 == 's')
2064 ans = CmdFSKrawdemod(Cmd+2);
2065 else if(cmdp == 'a' && cmdp2 == 'b')
2066 ans = Cmdaskbiphdemod(Cmd+2);
2067 else if(cmdp == 'a' && cmdp2 == 'm')
2068 ans = Cmdaskmandemod(Cmd+2);
2069 else if(cmdp == 'a' && cmdp2 == 'r')
2070 ans = Cmdaskrawdemod(Cmd+2);
2071 else if(cmdp == 'n' && cmdp2 == 'r')
2072 ans = CmdNRZrawDemod(Cmd+2);
2073 else if(cmdp == 'p' && cmdp2 == '1')
2074 ans = CmdPSK1rawDemod(Cmd+2);
2075 else if(cmdp == 'p' && cmdp2 == '2')
2076 ans = CmdPSK2rawDemod(Cmd+2);
2077 else
2078 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2079
2080 return ans;
2081 }
2082 //iceman: diff sizes on the plotwindow?
2083 int CmdGrid(const char *Cmd)
2084 {
2085 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
2086 PlotGridXdefault = PlotGridX;
2087 PlotGridYdefault = PlotGridY;
2088 RepaintGraphWindow();
2089 return 0;
2090 }
2091
2092 int CmdHexsamples(const char *Cmd)
2093 {
2094 int i, j;
2095 int requested = 0;
2096 int offset = 0;
2097 char string_buf[25];
2098 char* string_ptr = string_buf;
2099 uint8_t got[BIGBUF_SIZE];
2100
2101 sscanf(Cmd, "%i %i", &requested, &offset);
2102
2103 /* if no args send something */
2104 if (requested == 0) {
2105 requested = 8;
2106 }
2107 if (offset + requested > sizeof(got)) {
2108 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2109 return 0;
2110 }
2111
2112 GetFromBigBuf(got,requested,offset);
2113 WaitForResponse(CMD_ACK,NULL);
2114
2115 i = 0;
2116 for (j = 0; j < requested; j++) {
2117 i++;
2118 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2119 if (i == 8) {
2120 *(string_ptr - 1) = '\0'; // remove the trailing space
2121 PrintAndLog("%s", string_buf);
2122 string_buf[0] = '\0';
2123 string_ptr = string_buf;
2124 i = 0;
2125 }
2126 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2127 *(string_ptr - 1) = '\0';
2128 PrintAndLog("%s", string_buf);
2129 string_buf[0] = '\0';
2130 }
2131 }
2132 return 0;
2133 }
2134
2135 int CmdHide(const char *Cmd)
2136 {
2137 HideGraphWindow();
2138 return 0;
2139 }
2140
2141 //zero mean GraphBuffer
2142 int CmdHpf(const char *Cmd)
2143 {
2144 int i;
2145 int accum = 0;
2146
2147 for (i = 10; i < GraphTraceLen; ++i)
2148 accum += GraphBuffer[i];
2149
2150 accum /= (GraphTraceLen - 10);
2151
2152 for (i = 0; i < GraphTraceLen; ++i)
2153 GraphBuffer[i] -= accum;
2154
2155 RepaintGraphWindow();
2156 return 0;
2157 }
2158
2159 bool _headBit( BitstreamOut *stream)
2160 {
2161 int bytepos = stream->position >> 3; // divide by 8
2162 int bitpos = (stream->position++) & 7; // mask out 00000111
2163 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2164 }
2165
2166 uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2167 {
2168 int i;
2169 uint8_t val = 0;
2170 for(i = 0 ; i < bits_per_sample; i++)
2171 val |= (_headBit(b) << (7-i));
2172
2173 return val;
2174 }
2175
2176 int getSamples(const char *Cmd, bool silent)
2177 {
2178 //If we get all but the last byte in bigbuf,
2179 // we don't have to worry about remaining trash
2180 // in the last byte in case the bits-per-sample
2181 // does not line up on byte boundaries
2182
2183 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2184
2185 int n = strtol(Cmd, NULL, 0);
2186
2187 if ( n == 0 || n > sizeof(got))
2188 n = sizeof(got);
2189
2190 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
2191 GetFromBigBuf(got,n,0);
2192 if (!silent) PrintAndLog("Data fetched");
2193 UsbCommand response;
2194 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2195 PrintAndLog("timeout while waiting for reply.");
2196 return 1;
2197 }
2198
2199 uint8_t bits_per_sample = 8;
2200
2201 //Old devices without this feature would send 0 at arg[0]
2202 if (response.arg[0] > 0) {
2203 sample_config *sc = (sample_config *) response.d.asBytes;
2204 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
2205 bits_per_sample = sc->bits_per_sample;
2206 }
2207
2208 if (bits_per_sample < 8) {
2209 if (!silent) PrintAndLog("Unpacking...");
2210 BitstreamOut bout = { got, bits_per_sample * n, 0};
2211 int j =0;
2212 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
2213 uint8_t sample = getByte(bits_per_sample, &bout);
2214 GraphBuffer[j] = ((int) sample )- 128;
2215 }
2216 GraphTraceLen = j;
2217 if (!silent) PrintAndLog("Unpacked %d samples" , j );
2218 } else {
2219 for (int j = 0; j < n; j++) {
2220 GraphBuffer[j] = ((int)got[j]) - 128;
2221 }
2222 GraphTraceLen = n;
2223 }
2224
2225 RepaintGraphWindow();
2226 return 0;
2227 }
2228
2229 int CmdSamples(const char *Cmd)
2230 {
2231 return getSamples(Cmd, false);
2232 }
2233
2234 int CmdTuneSamples(const char *Cmd)
2235 {
2236 int timeout = 0;
2237 printf("\nMeasuring antenna characteristics, please wait...");
2238
2239 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2240 clearCommandBuffer();
2241 SendCommand(&c);
2242 UsbCommand resp;
2243 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
2244 timeout++;
2245 printf(".");
2246 fflush(stdout);
2247 if (timeout > 7) {
2248 PrintAndLog("\nNo response from Proxmark. Aborting...");
2249 return 1;
2250 }
2251 }
2252
2253 #define NON_VOLTAGE 999
2254 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2255 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2256 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2257 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2258
2259 int peakv, peakf;
2260 int vLf125, vLf134, vHf;
2261 vLf125 = resp.arg[0] & 0xffff;
2262 vLf134 = resp.arg[0] >> 16;
2263 vHf = resp.arg[1] & 0xffff;;
2264 peakf = resp.arg[2] & 0xffff;
2265 peakv = resp.arg[2] >> 16;
2266 PrintAndLog("");
2267 if ( vLf125 > NON_VOLTAGE )
2268 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2269 if ( vLf134 > NON_VOLTAGE )
2270 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2271 if ( peakv > NON_VOLTAGE && peakf > 0 )
2272 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2273 if ( vHf > NON_VOLTAGE )
2274 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
2275
2276
2277
2278 if (peakv < LF_UNUSABLE_V)
2279 PrintAndLog("# Your LF antenna is unusable.");
2280 else if (peakv < LF_MARGINAL_V)
2281 PrintAndLog("# Your LF antenna is marginal.");
2282 if (vHf < HF_UNUSABLE_V)
2283 PrintAndLog("# Your HF antenna is unusable.");
2284 else if (vHf < HF_MARGINAL_V)
2285 PrintAndLog("# Your HF antenna is marginal.");
2286
2287 if (peakv >= LF_UNUSABLE_V) {
2288 for (int i = 0; i < 256; i++) {
2289 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2290 }
2291 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2292 PrintAndLog("\n");
2293 GraphTraceLen = 256;
2294 ShowGraphWindow();
2295 RepaintGraphWindow();
2296 }
2297 return 0;
2298 }
2299
2300 int CmdLoad(const char *Cmd)
2301 {
2302 char filename[FILE_PATH_SIZE] = {0x00};
2303 int len = 0;
2304
2305 len = strlen(Cmd);
2306 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2307 memcpy(filename, Cmd, len);
2308
2309 FILE *f = fopen(filename, "r");
2310 if (!f) {
2311 PrintAndLog("couldn't open '%s'", filename);
2312 return 0;
2313 }
2314
2315 GraphTraceLen = 0;
2316 char line[80];
2317 while (fgets(line, sizeof (line), f)) {
2318 GraphBuffer[GraphTraceLen] = atoi(line);
2319 GraphTraceLen++;
2320 }
2321 if (f)
2322 fclose(f);
2323
2324 PrintAndLog("loaded %d samples", GraphTraceLen);
2325 RepaintGraphWindow();
2326 return 0;
2327 }
2328
2329 int CmdLtrim(const char *Cmd)
2330 {
2331 int ds = atoi(Cmd);
2332
2333 if (GraphTraceLen <= 0) return 0;
2334
2335 for (int i = ds; i < GraphTraceLen; ++i)
2336 GraphBuffer[i-ds] = GraphBuffer[i];
2337
2338 GraphTraceLen -= ds;
2339 RepaintGraphWindow();
2340 return 0;
2341 }
2342
2343 // trim graph to input argument length
2344 int CmdRtrim(const char *Cmd)
2345 {
2346 int ds = atoi(Cmd);
2347 GraphTraceLen = ds;
2348 RepaintGraphWindow();
2349 return 0;
2350 }
2351
2352 int CmdNorm(const char *Cmd)
2353 {
2354 int i;
2355 int max = INT_MIN, min = INT_MAX;
2356
2357 for (i = 10; i < GraphTraceLen; ++i) {
2358 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2359 if (GraphBuffer[i] < min) min = GraphBuffer[i];
2360 }
2361
2362 if (max != min) {
2363 for (i = 0; i < GraphTraceLen; ++i) {
2364 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2365 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2366 }
2367 }
2368 RepaintGraphWindow();
2369 return 0;
2370 }
2371
2372 int CmdPlot(const char *Cmd)
2373 {
2374 ShowGraphWindow();
2375 return 0;
2376 }
2377
2378 int CmdSave(const char *Cmd)
2379 {
2380 char filename[FILE_PATH_SIZE] = {0x00};
2381 int len = 0;
2382
2383 len = strlen(Cmd);
2384 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2385 memcpy(filename, Cmd, len);
2386
2387 FILE *f = fopen(filename, "w");
2388 if(!f) {
2389 PrintAndLog("couldn't open '%s'", filename);
2390 return 0;
2391 }
2392
2393 for (int i = 0; i < GraphTraceLen; i++)
2394 fprintf(f, "%d\n", GraphBuffer[i]);
2395
2396 if (f)
2397 fclose(f);
2398
2399 PrintAndLog("saved to '%s'", Cmd);
2400 return 0;
2401 }
2402
2403 int CmdScale(const char *Cmd)
2404 {
2405 CursorScaleFactor = atoi(Cmd);
2406 if (CursorScaleFactor == 0) {
2407 PrintAndLog("bad, can't have zero scale");
2408 CursorScaleFactor = 1;
2409 }
2410 RepaintGraphWindow();
2411 return 0;
2412 }
2413
2414 int CmdDirectionalThreshold(const char *Cmd)
2415 {
2416 int8_t upThres = param_get8(Cmd, 0);
2417 int8_t downThres = param_get8(Cmd, 1);
2418
2419 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2420
2421 int lastValue = GraphBuffer[0];
2422 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2423
2424 for (int i = 1; i < GraphTraceLen; ++i) {
2425 // Apply first threshold to samples heading up
2426 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2427 {
2428 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2429 GraphBuffer[i] = 1;
2430 }
2431 // Apply second threshold to samples heading down
2432 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2433 {
2434 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2435 GraphBuffer[i] = -1;
2436 }
2437 else
2438 {
2439 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2440 GraphBuffer[i] = GraphBuffer[i-1];
2441 }
2442 }
2443 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2444 RepaintGraphWindow();
2445 return 0;
2446 }
2447
2448 int CmdZerocrossings(const char *Cmd)
2449 {
2450 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2451 CmdHpf("");
2452
2453 int sign = 1;
2454 int zc = 0;
2455 int lastZc = 0;
2456
2457 for (int i = 0; i < GraphTraceLen; ++i) {
2458 if (GraphBuffer[i] * sign >= 0) {
2459 // No change in sign, reproduce the previous sample count.
2460 zc++;
2461 GraphBuffer[i] = lastZc;
2462 } else {
2463 // Change in sign, reset the sample count.
2464 sign = -sign;
2465 GraphBuffer[i] = lastZc;
2466 if (sign > 0) {
2467 lastZc = zc;
2468 zc = 0;
2469 }
2470 }
2471 }
2472
2473 RepaintGraphWindow();
2474 return 0;
2475 }
2476
2477 /**
2478 * @brief Utility for conversion via cmdline.
2479 * @param Cmd
2480 * @return
2481 */
2482 int Cmdbin2hex(const char *Cmd)
2483 {
2484 int bg =0, en =0;
2485 if(param_getptr(Cmd, &bg, &en, 0))
2486 return usage_data_bin2hex();
2487
2488 //Number of digits supplied as argument
2489 size_t length = en - bg +1;
2490 size_t bytelen = (length+7) / 8;
2491 uint8_t* arr = (uint8_t *) malloc(bytelen);
2492 memset(arr, 0, bytelen);
2493 BitstreamOut bout = { arr, 0, 0 };
2494
2495 for (; bg <= en ;bg++) {
2496 char c = Cmd[bg];
2497 if( c == '1') pushBit(&bout, 1);
2498 else if( c == '0') pushBit(&bout, 0);
2499 else PrintAndLog("Ignoring '%c'", c);
2500 }
2501
2502 if (bout.numbits % 8 != 0)
2503 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2504
2505 //Uses printf instead of PrintAndLog since the latter
2506 // adds linebreaks to each printout - this way was more convenient since we don't have to
2507 // allocate a string and write to that first...
2508 for(size_t x = 0; x < bytelen ; x++)
2509 printf("%02X", arr[x]);
2510
2511 printf("\n");
2512 free(arr);
2513 return 0;
2514 }
2515
2516 int Cmdhex2bin(const char *Cmd)
2517 {
2518 int bg =0, en =0;
2519 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
2520
2521 while (bg <= en ) {
2522 char x = Cmd[bg++];
2523 // capitalize
2524 if (x >= 'a' && x <= 'f')
2525 x -= 32;
2526 // convert to numeric value
2527 if (x >= '0' && x <= '9')
2528 x -= '0';
2529 else if (x >= 'A' && x <= 'F')
2530 x -= 'A' - 10;
2531 else
2532 continue;
2533
2534 //Uses printf instead of PrintAndLog since the latter
2535 // adds linebreaks to each printout - this way was more convenient since we don't have to
2536 // allocate a string and write to that first...
2537
2538 for(int i= 0 ; i < 4 ; ++i)
2539 printf("%d",(x >> (3 - i)) & 1);
2540 }
2541 printf("\n");
2542
2543 return 0;
2544 }
2545
2546 int CmdDataIIR(const char *Cmd){
2547 uint8_t k = param_get8(Cmd,0);
2548 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2549 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
2550 RepaintGraphWindow();
2551 return 0;
2552 }
2553
2554 static command_t CommandTable[] =
2555 {
2556 {"help", CmdHelp, 1, "This help"},
2557 {"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)"},
2558 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2559 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2560 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
2561 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2562 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2563 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
2564 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
2565 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
2566 {"dec", CmdDec, 1, "Decimate samples"},
2567 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
2568 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2569 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2570 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2571 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2572 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2573 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2574 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2575 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2576 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2577 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2578 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
2579 {"hide", CmdHide, 1, "Hide graph window"},
2580 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2581 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2582 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2583 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
2584 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2585 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2586 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2587 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
2588 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2589 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2590 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2591 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2592 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2593 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
2594 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
2595 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2596 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2597 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2598 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2599 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2600 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
2601 {NULL, NULL, 0, NULL}
2602 };
2603
2604 int CmdData(const char *Cmd){
2605 clearCommandBuffer();
2606 CmdsParse(CommandTable, Cmd);
2607 return 0;
2608 }
2609
2610 int CmdHelp(const char *Cmd)
2611 {
2612 CmdsHelp(CommandTable);
2613 return 0;
2614 }
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