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[proxmark3-svn] / client / cmddata.c
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 uint8_t askAmp = 0;
528 char amp = param_getchar(Cmd, 0);
529 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
530 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
531 if (!maxLen) maxLen = BIGBUF_SIZE;
532 if (invert != 0 && invert != 1) {
533 PrintAndLog("Invalid argument: %s", Cmd);
534 return 0;
535 }
536 if (clk==1){
537 invert=1;
538 clk=0;
539 }
540 if (amp == 'a' || amp == 'A') askAmp=1;
541 size_t BitLen = getFromGraphBuf(BitStream);
542 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
543 if (BitLen<255) return 0;
544 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
545 int foundclk = 0;
546 bool st = false;
547 if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
548 if (st) {
549 *stCheck = st;
550 clk = (clk == 0) ? foundclk : clk;
551 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
552 }
553 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
554 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
555 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
556 return 0;
557 }
558 if (errCnt > maxErr){
559 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
560 return 0;
561 }
562 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
563
564 //output
565 setDemodBuf(BitStream,BitLen,0);
566 if (verbose || g_debugMode){
567 if (errCnt>0)
568 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
569 if (askType)
570 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
571 else
572 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
573 // Now output the bitstream to the scrollback by line of 16 bits
574 printDemodBuff();
575 }
576 uint64_t lo = 0;
577 uint32_t hi = 0;
578 if (emSearch)
579 AskEm410xDecode(true, &hi, &lo);
580
581 return 1;
582 }
583 int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
584 bool st = false;
585 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
586 }
587
588 //by marshmellow
589 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
590 //attempts to demodulate ask while decoding manchester
591 //prints binary found and saves in graphbuffer for further commands
592 int Cmdaskmandemod(const char *Cmd)
593 {
594 char cmdp = param_getchar(Cmd, 0);
595 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
596
597 bool st = TRUE;
598 if (Cmd[0]=='s')
599 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
600 else if (Cmd[1] == 's')
601 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
602
603 return ASKDemod(Cmd, TRUE, TRUE, 1);
604 }
605
606 //by marshmellow
607 //manchester decode
608 //stricktly take 10 and 01 and convert to 0 and 1
609 int Cmdmandecoderaw(const char *Cmd)
610 {
611 int i = 0;
612 int errCnt = 0;
613 size_t size = 0;
614 int invert = 0;
615 int maxErr = 20;
616 char cmdp = param_getchar(Cmd, 0);
617 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
618
619 if (DemodBufferLen==0) return 0;
620
621 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
622 int high = 0, low = 0;
623 for (; i < DemodBufferLen; ++i){
624 if (DemodBuffer[i] > high)
625 high=DemodBuffer[i];
626 else if(DemodBuffer[i] < low)
627 low=DemodBuffer[i];
628 BitStream[i] = DemodBuffer[i];
629 }
630 if (high>7 || low <0 ){
631 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
632 return 0;
633 }
634
635 sscanf(Cmd, "%i %i", &invert, &maxErr);
636 size = i;
637 errCnt = manrawdecode(BitStream, &size, invert);
638 if (errCnt >= maxErr){
639 PrintAndLog("Too many errors: %d",errCnt);
640 return 0;
641 }
642 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
643 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
644 if (errCnt == 0){
645 uint64_t id = 0;
646 uint32_t hi = 0;
647 size_t idx=0;
648 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
649 //need to adjust to set bitstream back to manchester encoded data
650 //setDemodBuf(BitStream, size, idx);
651 printEM410x(hi, id);
652 }
653 }
654 return 1;
655 }
656
657 //by marshmellow
658 //biphase decode
659 //take 01 or 10 = 0 and 11 or 00 = 1
660 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
661 // and "invert" default = 0 if 1 it will invert output
662 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
663 int CmdBiphaseDecodeRaw(const char *Cmd)
664 {
665 size_t size=0;
666 int offset=0, invert=0, maxErr=20, errCnt=0;
667 char cmdp = param_getchar(Cmd, 0);
668 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
669
670 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
671 if (DemodBufferLen==0){
672 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
673 return 0;
674 }
675 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
676 memcpy(BitStream, DemodBuffer, DemodBufferLen);
677 size = DemodBufferLen;
678 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
679 if (errCnt < 0){
680 PrintAndLog("Error during decode:%d", errCnt);
681 return 0;
682 }
683 if (errCnt > maxErr){
684 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
685 return 0;
686 }
687
688 if (errCnt > 0)
689 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
690
691 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
692 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
693
694 if (offset)
695 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
696 return 1;
697 }
698
699 //by marshmellow
700 // - ASK Demod then Biphase decode GraphBuffer samples
701 int ASKbiphaseDemod(const char *Cmd, bool verbose)
702 {
703 //ask raw demod GraphBuffer first
704 int offset=0, clk=0, invert=0, maxErr=0;
705 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
706
707 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
708 size_t size = getFromGraphBuf(BitStream);
709 if (size == 0 ) {
710 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
711 return 0;
712 }
713 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
714 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
715 if ( errCnt < 0 || errCnt > maxErr ) {
716 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
717 return 0;
718 }
719
720 //attempt to Biphase decode BitStream
721 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
722 if (errCnt < 0){
723 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
724 return 0;
725 }
726 if (errCnt > maxErr) {
727 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
728 return 0;
729 }
730 //success set DemodBuffer and return
731 setDemodBuf(BitStream, size, 0);
732 if (g_debugMode || verbose){
733 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
734 printDemodBuff();
735 }
736 return 1;
737 }
738 //by marshmellow - see ASKbiphaseDemod
739 int Cmdaskbiphdemod(const char *Cmd)
740 {
741 char cmdp = param_getchar(Cmd, 0);
742 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
743
744 return ASKbiphaseDemod(Cmd, TRUE);
745 }
746
747 //by marshmellow
748 //attempts to demodulate and identify a G_Prox_II verex/chubb card
749 //WARNING: if it fails during some points it will destroy the DemodBuffer data
750 // but will leave the GraphBuffer intact.
751 //if successful it will push askraw data back to demod buffer ready for emulation
752 int CmdG_Prox_II_Demod(const char *Cmd)
753 {
754 if (!ASKbiphaseDemod(Cmd, FALSE)){
755 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
756 return 0;
757 }
758 size_t size = DemodBufferLen;
759 //call lfdemod.c demod for gProxII
760 int ans = gProxII_Demod(DemodBuffer, &size);
761 if (ans < 0){
762 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
763 return 0;
764 }
765 //got a good demod of 96 bits
766 uint8_t ByteStream[8] = {0x00};
767 uint8_t xorKey = 0;
768 size_t startIdx = ans + 6; //start after 6 bit preamble
769
770 uint8_t bits_no_spacer[90];
771 //so as to not mess with raw DemodBuffer copy to a new sample array
772 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
773 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
774 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
775 if (bitLen != 72) {
776 if (g_debugMode)
777 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
778 return 0;
779 }
780 // get key and then get all 8 bytes of payload decoded
781 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
782 for (size_t idx = 0; idx < 8; idx++) {
783 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
784 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
785 }
786
787 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
788 uint8_t fmtLen = ByteStream[0]>>2;
789 uint32_t FC = 0;
790 uint32_t Card = 0;
791 //get raw 96 bits to print
792 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
793 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
794 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
795 bool unknown = FALSE;
796 switch(fmtLen) {
797 case 36:
798 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
799 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
800 break;
801 case 26:
802 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
803 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
804 break;
805 default :
806 unknown = TRUE;
807 break;
808 }
809 if ( !unknown)
810 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
811 else
812 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
813
814 setDemodBuf(DemodBuffer+ans, 96, 0);
815 return 1;
816 }
817
818 //by marshmellow
819 //see ASKDemod for what args are accepted
820 int CmdVikingDemod(const char *Cmd)
821 {
822 if (!ASKDemod(Cmd, false, false, 1)) {
823 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
824 return 0;
825 }
826 size_t size = DemodBufferLen;
827 //call lfdemod.c demod for Viking
828 int ans = VikingDemod_AM(DemodBuffer, &size);
829 if (ans < 0) {
830 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
831 return 0;
832 }
833 //got a good demod
834 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
835 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
836 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
837 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
838 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
839 PrintAndLog("Raw: %08X%08X", raw1,raw2);
840 setDemodBuf(DemodBuffer+ans, 64, 0);
841 return 1;
842 }
843
844 //by marshmellow - see ASKDemod
845 int Cmdaskrawdemod(const char *Cmd)
846 {
847 char cmdp = param_getchar(Cmd, 0);
848 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
849
850 return ASKDemod(Cmd, TRUE, FALSE, 0);
851 }
852
853 int AutoCorrelate(int window, bool SaveGrph, bool verbose)
854 {
855 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
856 size_t Correlation = 0;
857 int maxSum = 0;
858 int lastMax = 0;
859 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
860 for (int i = 0; i < GraphTraceLen - window; ++i) {
861 int sum = 0;
862 for (int j = 0; j < window; ++j) {
863 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
864 }
865 CorrelBuffer[i] = sum;
866 if (sum >= maxSum-100 && sum <= maxSum+100){
867 //another max
868 Correlation = i-lastMax;
869 lastMax = i;
870 if (sum > maxSum) maxSum = sum;
871 } else if (sum > maxSum){
872 maxSum=sum;
873 lastMax = i;
874 }
875 }
876 if (Correlation==0){
877 //try again with wider margin
878 for (int i = 0; i < GraphTraceLen - window; i++){
879 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
880 //another max
881 Correlation = i-lastMax;
882 lastMax = i;
883 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
884 }
885 }
886 }
887 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
888
889 if (SaveGrph){
890 GraphTraceLen = GraphTraceLen - window;
891 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
892 RepaintGraphWindow();
893 }
894 return Correlation;
895 }
896
897 int CmdAutoCorr(const char *Cmd)
898 {
899 char cmdp = param_getchar(Cmd, 0);
900 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
901 int window = 4000; //set default
902 char grph = 0;
903 bool updateGrph = FALSE;
904 sscanf(Cmd, "%i %c", &window, &grph);
905
906 if (window >= GraphTraceLen) {
907 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
908 return 0;
909 }
910 if (grph == 'g') updateGrph = TRUE;
911 return AutoCorrelate(window, updateGrph, TRUE);
912 }
913
914 int CmdBitsamples(const char *Cmd)
915 {
916 int cnt = 0;
917 uint8_t got[12288];
918
919 GetFromBigBuf(got, sizeof(got), 0);
920 WaitForResponse(CMD_ACK, NULL);
921
922 for (int j = 0; j < sizeof(got); j++) {
923 for (int k = 0; k < 8; k++) {
924 if(got[j] & (1 << (7 - k)))
925 GraphBuffer[cnt++] = 1;
926 else
927 GraphBuffer[cnt++] = 0;
928 }
929 }
930 GraphTraceLen = cnt;
931 RepaintGraphWindow();
932 return 0;
933 }
934
935 int CmdBuffClear(const char *Cmd)
936 {
937 char cmdp = param_getchar(Cmd, 0);
938 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
939
940 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
941 SendCommand(&c);
942 ClearGraph(true);
943 return 0;
944 }
945
946 int CmdDec(const char *Cmd)
947 {
948 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
949 GraphBuffer[i] = GraphBuffer[i * 2];
950
951 GraphTraceLen >>= 2;
952 PrintAndLog("decimated by 2");
953 RepaintGraphWindow();
954 return 0;
955 }
956 /**
957 * Undecimate - I'd call it 'interpolate', but we'll save that
958 * name until someone does an actual interpolation command, not just
959 * blindly repeating samples
960 * @param Cmd
961 * @return
962 */
963 int CmdUndec(const char *Cmd)
964 {
965 char cmdp = param_getchar(Cmd, 0);
966 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
967
968 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
969
970 //We have memory, don't we?
971 int swap[MAX_GRAPH_TRACE_LEN] = {0};
972 uint32_t g_index = 0, s_index = 0;
973 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
974 {
975 int count = 0;
976 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
977 swap[s_index+count] = GraphBuffer[g_index];
978 s_index += count;
979 g_index++;
980 }
981
982 memcpy(GraphBuffer, swap, s_index * sizeof(int));
983 GraphTraceLen = s_index;
984 RepaintGraphWindow();
985 return 0;
986 }
987
988 //by marshmellow
989 //shift graph zero up or down based on input + or -
990 int CmdGraphShiftZero(const char *Cmd)
991 {
992 int shift = 0, shiftedVal = 0;
993 //set options from parameters entered with the command
994 sscanf(Cmd, "%i", &shift);
995
996 for(int i = 0; i < GraphTraceLen; i++){
997 if ( i+shift >= GraphTraceLen)
998 shiftedVal = GraphBuffer[i];
999 else
1000 shiftedVal = GraphBuffer[i] + shift;
1001
1002 if (shiftedVal > 127)
1003 shiftedVal = 127;
1004 else if (shiftedVal < -127)
1005 shiftedVal = -127;
1006 GraphBuffer[i] = shiftedVal;
1007 }
1008 CmdNorm("");
1009 return 0;
1010 }
1011
1012 //by marshmellow
1013 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
1014 //similar to dirtheshold, threshold commands
1015 //takes a threshold length which is the measured length between two samples then determines an edge
1016 int CmdAskEdgeDetect(const char *Cmd)
1017 {
1018 int thresLen = 25;
1019 int last = 0;
1020 sscanf(Cmd, "%i", &thresLen);
1021
1022 for(int i = 1; i < GraphTraceLen; ++i){
1023 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1024 last = 127;
1025 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1026 last = -127;
1027
1028 GraphBuffer[i-1] = last;
1029 }
1030 RepaintGraphWindow();
1031 return 0;
1032 }
1033
1034 /* Print our clock rate */
1035 // uses data from graphbuffer
1036 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
1037 int CmdDetectClockRate(const char *Cmd)
1038 {
1039 char cmdp = param_getchar(Cmd, 0);
1040 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1041 return usage_data_detectclock();
1042
1043 int ans = 0;
1044 switch ( cmdp ) {
1045 case 'a' :
1046 case 'A' :
1047 ans = GetAskClock(Cmd+1, true, false);
1048 break;
1049 case 'f' :
1050 case 'F' :
1051 ans = GetFskClock("", true, false);
1052 break;
1053 case 'n' :
1054 case 'N' :
1055 ans = GetNrzClock("", true, false);
1056 break;
1057 case 'p' :
1058 case 'P' :
1059 ans = GetPskClock("", true, false);
1060 break;
1061 default :
1062 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1063 break;
1064 }
1065 return ans;
1066 }
1067
1068 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1069 {
1070 static char fType[8];
1071 memset(fType, 0x00, 8);
1072 char *fskType = fType;
1073 if (fchigh==10 && fclow==8){
1074 if (invert) //fsk2a
1075 memcpy(fskType, "FSK2a", 5);
1076 else //fsk2
1077 memcpy(fskType, "FSK2", 4);
1078 } else if (fchigh == 8 && fclow == 5) {
1079 if (invert)
1080 memcpy(fskType, "FSK1", 4);
1081 else
1082 memcpy(fskType, "FSK1a", 5);
1083 } else {
1084 memcpy(fskType, "FSK??", 5);
1085 }
1086 return fskType;
1087 }
1088
1089 //by marshmellow
1090 //fsk raw demod and print binary
1091 //takes 4 arguments - Clock, invert, fchigh, fclow
1092 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1093 int FSKrawDemod(const char *Cmd, bool verbose)
1094 {
1095 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1096 uint8_t rfLen, invert, fchigh, fclow;
1097
1098 //set defaults
1099 //set options from parameters entered with the command
1100 rfLen = param_get8(Cmd, 0);
1101 invert = param_get8(Cmd, 1);
1102 fchigh = param_get8(Cmd, 2);
1103 fclow = param_get8(Cmd, 3);
1104 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
1105 if (rfLen==1) {
1106 invert = 1; //if invert option only is used
1107 rfLen = 0;
1108 }
1109 }
1110
1111 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1112 size_t BitLen = getFromGraphBuf(BitStream);
1113 if (BitLen==0) return 0;
1114 //get field clock lengths
1115 uint16_t fcs=0;
1116 if (!fchigh || !fclow) {
1117 fcs = countFC(BitStream, BitLen, 1);
1118 if (!fcs) {
1119 fchigh = 10;
1120 fclow = 8;
1121 } else {
1122 fchigh = (fcs >> 8) & 0x00FF;
1123 fclow = fcs & 0x00FF;
1124 }
1125 }
1126 //get bit clock length
1127 if (!rfLen) {
1128 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
1129 if (!rfLen) rfLen = 50;
1130 }
1131 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
1132 if (size > 0) {
1133 setDemodBuf(BitStream, size, 0);
1134
1135 // Now output the bitstream to the scrollback by line of 16 bits
1136 if (verbose || g_debugMode) {
1137 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
1138 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
1139 printDemodBuff();
1140 }
1141 return 1;
1142 } else {
1143 if (g_debugMode) PrintAndLog("no FSK data found");
1144 }
1145 return 0;
1146 }
1147
1148 //by marshmellow
1149 //fsk raw demod and print binary
1150 //takes 4 arguments - Clock, invert, fchigh, fclow
1151 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1152 int CmdFSKrawdemod(const char *Cmd)
1153 {
1154 char cmdp = param_getchar(Cmd, 0);
1155 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
1156
1157 return FSKrawDemod(Cmd, TRUE);
1158 }
1159
1160 //by marshmellow (based on existing demod + holiman's refactor)
1161 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1162 //print full HID Prox ID and some bit format details if found
1163 int CmdFSKdemodHID(const char *Cmd)
1164 {
1165 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1166 uint32_t hi2=0, hi=0, lo=0;
1167
1168 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1169 size_t BitLen = getFromGraphBuf(BitStream);
1170 if (BitLen==0) return 0;
1171 //get binary from fsk wave
1172 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1173 if (idx<0){
1174 if (g_debugMode){
1175 if (idx==-1){
1176 PrintAndLog("DEBUG: Error - HID just noise detected");
1177 } else if (idx == -2) {
1178 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
1179 } else if (idx == -3) {
1180 PrintAndLog("DEBUG: Error - HID preamble not found");
1181 } else if (idx == -4) {
1182 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
1183 } else {
1184 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
1185 }
1186 }
1187 return 0;
1188 }
1189 if (hi2==0 && hi==0 && lo==0) {
1190 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
1191 return 0;
1192 }
1193 if (hi2 != 0){ //extra large HID tags
1194 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
1195 }
1196 else { //standard HID tags <38 bits
1197 uint8_t fmtLen = 0;
1198 uint32_t fc = 0;
1199 uint32_t cardnum = 0;
1200 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1201 uint32_t lo2=0;
1202 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1203 uint8_t idx3 = 1;
1204 while(lo2>1){ //find last bit set to 1 (format len bit)
1205 lo2=lo2>>1;
1206 idx3++;
1207 }
1208 fmtLen =idx3+19;
1209 fc =0;
1210 cardnum=0;
1211 if(fmtLen==26){
1212 cardnum = (lo>>1)&0xFFFF;
1213 fc = (lo>>17)&0xFF;
1214 }
1215 if(fmtLen==34){
1216 cardnum = (lo>>1)&0xFFFF;
1217 fc= ((hi&1)<<15)|(lo>>17);
1218 }
1219 if(fmtLen==35){
1220 cardnum = (lo>>1)&0xFFFFF;
1221 fc = ((hi&1)<<11)|(lo>>21);
1222 }
1223 }
1224 else { //if bit 38 is not set then 37 bit format is used
1225 fmtLen = 37;
1226 fc = 0;
1227 cardnum = 0;
1228 if(fmtLen == 37){
1229 cardnum = (lo>>1)&0x7FFFF;
1230 fc = ((hi&0xF)<<12)|(lo>>20);
1231 }
1232 }
1233 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
1234 }
1235 setDemodBuf(BitStream,BitLen,idx);
1236 if (g_debugMode){
1237 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1238 printDemodBuff();
1239 }
1240 return 1;
1241 }
1242
1243 //by marshmellow
1244 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1245 //print full Paradox Prox ID and some bit format details if found
1246 int CmdFSKdemodParadox(const char *Cmd)
1247 {
1248 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1249 uint32_t hi2=0, hi=0, lo=0;
1250
1251 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1252 size_t BitLen = getFromGraphBuf(BitStream);
1253 if (BitLen==0) return 0;
1254 //get binary from fsk wave
1255 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1256 if (idx<0){
1257 if (g_debugMode){
1258 if (idx==-1){
1259 PrintAndLog("DEBUG: Error - Paradox just noise detected");
1260 } else if (idx == -2) {
1261 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
1262 } else if (idx == -3) {
1263 PrintAndLog("DEBUG: Error - Paradox preamble not found");
1264 } else if (idx == -4) {
1265 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
1266 } else {
1267 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
1268 }
1269 }
1270 return 0;
1271 }
1272 if (hi2==0 && hi==0 && lo==0){
1273 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
1274 return 0;
1275 }
1276 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1277 uint32_t cardnum = (lo>>10)&0xFFFF;
1278 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1279 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1280 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1281
1282 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1283 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1284 setDemodBuf(BitStream,BitLen,idx);
1285 if (g_debugMode){
1286 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1287 printDemodBuff();
1288 }
1289 return 1;
1290 }
1291
1292 //by marshmellow
1293 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1294 //print ioprox ID and some format details
1295 int CmdFSKdemodIO(const char *Cmd)
1296 {
1297 int retval = 0;
1298 int idx = 0;
1299 char crcStr[20];
1300 memset(crcStr, 0x00, sizeof(crcStr) );
1301
1302 //something in graphbuffer?
1303 if (GraphTraceLen < 65) {
1304 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
1305 return retval;
1306 }
1307 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1308 size_t bitlen = getFromGraphBuf(BitStream);
1309 if (bitlen == 0) return retval;
1310
1311 //get binary from fsk wave
1312 idx = IOdemodFSK(BitStream, bitlen);
1313 if (idx<0){
1314 if (g_debugMode){
1315 if (idx==-1){
1316 PrintAndLog("DEBUG: Error - IO prox just noise detected");
1317 } else if (idx == -2) {
1318 PrintAndLog("DEBUG: Error - IO prox not enough samples");
1319 } else if (idx == -3) {
1320 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
1321 } else if (idx == -4) {
1322 PrintAndLog("DEBUG: Error - IO prox preamble not found");
1323 } else if (idx == -5) {
1324 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
1325 } else {
1326 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
1327 }
1328 }
1329 return retval;
1330 }
1331 if (idx==0){
1332 if (g_debugMode){
1333 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
1334 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
1335 }
1336 return retval;
1337 }
1338 //Index map
1339 //0 10 20 30 40 50 60
1340 //| | | | | | |
1341 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1342 //-----------------------------------------------------------------------------
1343 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1344 //
1345 //XSF(version)facility:codeone+codetwo (raw)
1346 //Handle the data
1347 if (idx + 64 > bitlen) {
1348 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
1349 return retval;
1350 }
1351
1352 if (g_debugMode) {
1353 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]);
1354 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]);
1355 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]);
1356 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]);
1357 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]);
1358 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]);
1359 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]);
1360 }
1361
1362 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1363 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1364 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1365 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1366 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1367 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1368 uint16_t calccrc = 0;
1369
1370 for (uint8_t i = 1; i < 6; ++i){
1371 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
1372 }
1373 calccrc &= 0xff;
1374 calccrc = 0xff - calccrc;
1375
1376 if (crc == calccrc) {
1377 snprintf(crcStr, 3, "ok");
1378 retval = 1;
1379 } else {
1380 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
1381
1382 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1383 retval = 0;
1384 }
1385
1386 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
1387 setDemodBuf(BitStream,64,idx);
1388 if (g_debugMode){
1389 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
1390 printDemodBuff();
1391 }
1392 return retval;
1393 }
1394
1395 //by marshmellow
1396 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1397 //print full AWID Prox ID and some bit format details if found
1398 int CmdFSKdemodAWID(const char *Cmd)
1399 {
1400 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1401 size_t size = getFromGraphBuf(BitStream);
1402 if (size==0) return 0;
1403
1404 //get binary from fsk wave
1405 int idx = AWIDdemodFSK(BitStream, &size);
1406 if (idx<=0){
1407 if (g_debugMode){
1408 if (idx == -1)
1409 PrintAndLog("DEBUG: Error - AWID not enough samples");
1410 else if (idx == -2)
1411 PrintAndLog("DEBUG: Error - AWID only noise found");
1412 else if (idx == -3)
1413 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
1414 else if (idx == -4)
1415 PrintAndLog("DEBUG: Error - AWID preamble not found");
1416 else if (idx == -5)
1417 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
1418 else
1419 PrintAndLog("DEBUG: Error - AWID error %d",idx);
1420 }
1421 return 0;
1422 }
1423
1424 // Index map
1425 // 0 10 20 30 40 50 60
1426 // | | | | | | |
1427 // 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
1428 // -----------------------------------------------------------------------------
1429 // 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
1430 // 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
1431 // |---26 bit---| |-----117----||-------------142-------------|
1432 // b = format bit len, o = odd parity of last 3 bits
1433 // f = facility code, c = card number
1434 // w = wiegand parity
1435 // (26 bit format shown)
1436
1437 //get raw ID before removing parities
1438 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1439 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1440 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1441 setDemodBuf(BitStream,96,idx);
1442
1443 size = removeParity(BitStream, idx+8, 4, 1, 88);
1444 if (size != 66){
1445 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
1446 return 0;
1447 }
1448 // ok valid card found!
1449
1450 // Index map
1451 // 0 10 20 30 40 50 60
1452 // | | | | | | |
1453 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1454 // -----------------------------------------------------------------------------
1455 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1456 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1457 // |26 bit| |-117--| |-----142------|
1458 //
1459 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1460 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1461 // |50 bit| |----4000------| |-----------2248975------------|
1462 // b = format bit len, o = odd parity of last 3 bits
1463 // f = facility code, c = card number
1464 // w = wiegand parity
1465
1466 uint32_t fc = 0;
1467 uint32_t cardnum = 0;
1468 uint32_t code1 = 0;
1469 uint32_t code2 = 0;
1470 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
1471
1472 switch(fmtLen) {
1473 case 26:
1474 fc = bytebits_to_byte(BitStream + 9, 8);
1475 cardnum = bytebits_to_byte(BitStream + 17, 16);
1476 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
1477 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1478 break;
1479 case 34:
1480 fc = bytebits_to_byte(BitStream + 9, 8);
1481 cardnum = bytebits_to_byte(BitStream + 17, 24);
1482 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1483 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1484 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1485 break;
1486 case 37:
1487 fc = bytebits_to_byte(BitStream + 9, 13);
1488 cardnum = bytebits_to_byte(BitStream + 22, 18);
1489 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1490 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1491 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1492 break;
1493 // case 40:
1494 // break;
1495 case 50:
1496 fc = bytebits_to_byte(BitStream + 9, 16);
1497 cardnum = bytebits_to_byte(BitStream + 25, 32);
1498 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1499 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1500 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1501 break;
1502 default:
1503 if (fmtLen > 32 ) {
1504 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1505 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1506 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1507 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1508 } else {
1509 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1510 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1511 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1512 }
1513 break;
1514 }
1515
1516 if (g_debugMode){
1517 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1518 printDemodBuff();
1519 }
1520 return 1;
1521 }
1522
1523 //by marshmellow
1524 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1525 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1526 int CmdFSKdemodPyramid(const char *Cmd)
1527 {
1528 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1529 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1530 size_t size = getFromGraphBuf(BitStream);
1531 if (size==0) return 0;
1532
1533 //get binary from fsk wave
1534 int idx = PyramiddemodFSK(BitStream, &size);
1535 if (idx < 0){
1536 if (g_debugMode){
1537 if (idx == -5)
1538 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
1539 else if (idx == -1)
1540 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
1541 else if (idx == -2)
1542 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
1543 else if (idx == -3)
1544 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
1545 else if (idx == -4)
1546 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
1547 else
1548 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
1549 }
1550 return 0;
1551 }
1552 // Index map
1553 // 0 10 20 30 40 50 60
1554 // | | | | | | |
1555 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1556 // -----------------------------------------------------------------------------
1557 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1558 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1559
1560 // 64 70 80 90 100 110 120
1561 // | | | | | | |
1562 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1563 // -----------------------------------------------------------------------------
1564 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1565 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1566 // |---115---||---------71---------|
1567 // s = format start bit, o = odd parity of last 7 bits
1568 // f = facility code, c = card number
1569 // w = wiegand parity, x = extra space for other formats
1570 // p = CRC8maxim checksum
1571 // (26 bit format shown)
1572
1573 //get bytes for checksum calc
1574 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1575 uint8_t csBuff[14] = {0x00};
1576 for (uint8_t i = 0; i < 13; i++){
1577 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1578 }
1579 //check checksum calc
1580 //checksum calc thanks to ICEMAN!!
1581 uint32_t checkCS = CRC8Maxim(csBuff, 13);
1582
1583 //get raw ID before removing parities
1584 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1585 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1586 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1587 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1588 setDemodBuf(BitStream, 128, idx);
1589
1590 size = removeParity(BitStream, idx+8, 8, 1, 120);
1591 if (size != 105){
1592 if (g_debugMode) {
1593 if ( size == 0)
1594 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1595 else
1596 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1597 }
1598 return 0;
1599 }
1600
1601 // ok valid card found!
1602
1603 // Index map
1604 // 0 10 20 30 40 50 60 70
1605 // | | | | | | | |
1606 // 01234567890123456789012345678901234567890123456789012345678901234567890
1607 // -----------------------------------------------------------------------
1608 // 00000000000000000000000000000000000000000000000000000000000000000000000
1609 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1610
1611 // 71 80 90 100
1612 // | | | |
1613 // 1 2 34567890 1234567890123456 7 8901234
1614 // ---------------------------------------
1615 // 1 1 01110011 0000000001000110 0 1001010
1616 // s w ffffffff cccccccccccccccc w ppppppp
1617 // |--115-| |------71------|
1618 // s = format start bit, o = odd parity of last 7 bits
1619 // f = facility code, c = card number
1620 // w = wiegand parity, x = extra space for other formats
1621 // p = CRC8-Maxim checksum
1622 // (26 bit format shown)
1623
1624 //find start bit to get fmtLen
1625 int j;
1626 for (j=0; j < size; ++j){
1627 if(BitStream[j]) break;
1628 }
1629
1630 uint8_t fmtLen = size-j-8;
1631 uint32_t fc = 0;
1632 uint32_t cardnum = 0;
1633 uint32_t code1 = 0;
1634
1635 if ( fmtLen == 26 ){
1636 fc = bytebits_to_byte(BitStream+73, 8);
1637 cardnum = bytebits_to_byte(BitStream+81, 16);
1638 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1639 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);
1640 } else if (fmtLen == 45) {
1641 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
1642 fc = bytebits_to_byte(BitStream+53, 10);
1643 cardnum = bytebits_to_byte(BitStream+63, 32);
1644 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1645 } else {
1646 cardnum = bytebits_to_byte(BitStream+81, 16);
1647 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1648 }
1649 if (checksum == checkCS)
1650 PrintAndLog("Checksum %02x passed", checksum);
1651 else
1652 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1653
1654 if (g_debugMode){
1655 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1656 printDemodBuff();
1657 }
1658 return 1;
1659 }
1660
1661 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1662 // 8 databits + 1 parity (1)
1663 // CIITT 16 chksum
1664 // NATIONAL CODE, ICAR database
1665 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1666 // FLAG (animal/non-animal)
1667 /*
1668 38 IDbits
1669 10 country code
1670 1 extra app bit
1671 14 reserved bits
1672 1 animal bit
1673 16 ccitt CRC chksum over 64bit ID CODE.
1674 24 appli bits.
1675
1676 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1677 */
1678 int CmdFDXBdemodBI(const char *Cmd){
1679
1680 int invert = 1;
1681 int clk = 32;
1682 int errCnt = 0;
1683 int maxErr = 0;
1684 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1685 size_t size = getFromGraphBuf(BitStream);
1686
1687 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1688 if ( errCnt < 0 || errCnt > maxErr ) {
1689 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
1690 return 0;
1691 }
1692
1693 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1694 if (errCnt < 0 || errCnt > maxErr ) {
1695 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
1696 return 0;
1697 }
1698
1699 int preambleIndex = FDXBdemodBI(BitStream, &size);
1700 if (preambleIndex < 0){
1701 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
1702 return 0;
1703 }
1704 if (size != 128) {
1705 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
1706 return 0;
1707 }
1708
1709 setDemodBuf(BitStream, 128, preambleIndex);
1710
1711 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1712 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
1713 if ( size != 104 ) {
1714 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
1715 return 0;
1716 }
1717 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1718
1719 //got a good demod
1720 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1721 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1722 uint8_t dataBlockBit = BitStream[48];
1723 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1724 uint8_t animalBit = BitStream[63];
1725 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1726 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1727
1728 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
1729 uint8_t raw[8];
1730 num_to_bytes(rawid, 8, raw);
1731
1732 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1733
1734 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1735 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
1736 PrintAndLog("National Code: %012llu", NationalCode);
1737 PrintAndLog("CountryCode: %04u", countryCode);
1738
1739 PrintAndLog("Reserved/RFU: %u", reservedCode);
1740 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1741 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
1742 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1743
1744 if (g_debugMode) {
1745 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1746 char *bin = sprint_bin_break(BitStream,size,16);
1747 PrintAndLog("DEBUG BinStream:\n%s",bin);
1748 }
1749 return 1;
1750 }
1751
1752
1753 //by marshmellow
1754 //attempt to psk1 demod graph buffer
1755 int PSKDemod(const char *Cmd, bool verbose)
1756 {
1757 int invert=0;
1758 int clk=0;
1759 int maxErr=100;
1760 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1761 if (clk==1){
1762 invert=1;
1763 clk=0;
1764 }
1765 if (invert != 0 && invert != 1) {
1766 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
1767 return 0;
1768 }
1769 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1770 size_t BitLen = getFromGraphBuf(BitStream);
1771 if (BitLen==0) return 0;
1772 uint8_t carrier=countFC(BitStream, BitLen, 0);
1773 if (carrier!=2 && carrier!=4 && carrier!=8){
1774 //invalid carrier
1775 return 0;
1776 }
1777 if (g_debugMode){
1778 PrintAndLog("Carrier: rf/%d",carrier);
1779 }
1780 int errCnt=0;
1781 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1782 if (errCnt > maxErr){
1783 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1784 return 0;
1785 }
1786 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1787 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1788 return 0;
1789 }
1790 if (verbose || g_debugMode){
1791 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
1792 if (errCnt>0){
1793 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1794 }
1795 }
1796 //prime demod buffer for output
1797 setDemodBuf(BitStream,BitLen,0);
1798 return 1;
1799 }
1800
1801 // Indala 26 bit decode
1802 // by marshmellow
1803 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1804 int CmdIndalaDecode(const char *Cmd)
1805 {
1806 int ans;
1807 if (strlen(Cmd)>0){
1808 ans = PSKDemod(Cmd, 0);
1809 } else{ //default to RF/32
1810 ans = PSKDemod("32", 0);
1811 }
1812
1813 if (!ans){
1814 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
1815 return 0;
1816 }
1817
1818 uint8_t invert = 0;
1819 size_t size = DemodBufferLen;
1820 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1821 if (startIdx < 0 || size > 224) {
1822 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
1823 return -1;
1824 }
1825 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
1826 if (invert)
1827 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
1828
1829 //convert UID to HEX
1830 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1831 uid1 = bytebits_to_byte(DemodBuffer,32);
1832 uid2 = bytebits_to_byte(DemodBuffer+32,32);
1833 if (DemodBufferLen==64){
1834 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1835 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1836 );
1837 } else {
1838 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1839 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1840 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1841 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1842 uid7 = bytebits_to_byte(DemodBuffer+192,32);
1843 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1844 DemodBufferLen,
1845 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1846 );
1847 }
1848 if (g_debugMode){
1849 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
1850 printDemodBuff();
1851 }
1852 return 1;
1853 }
1854
1855 int CmdPSKNexWatch(const char *Cmd)
1856 {
1857 if (!PSKDemod("", false)) return 0;
1858
1859 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};
1860 size_t startIdx = 0, size = DemodBufferLen;
1861
1862 // sanity check.
1863 if ( size < sizeof(preamble) + 100) return 0;
1864
1865 bool invert = false;
1866 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1867 // if didn't find preamble try again inverting
1868 if (!PSKDemod("1", false)) return 0;
1869
1870 size = DemodBufferLen;
1871 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1872 invert = true;
1873 }
1874 if (size != 128) return 0;
1875 setDemodBuf(DemodBuffer, size, startIdx+4);
1876 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1877 //get ID
1878 uint32_t ID = 0;
1879 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1880 for (uint8_t idx=0; idx<8; idx++){
1881 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1882 }
1883 }
1884 //parity check (TBD)
1885
1886 //checksum check (TBD)
1887
1888 //output
1889 PrintAndLog("NexWatch ID: %d", ID);
1890 if (invert){
1891 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
1892 for (uint8_t idx=0; idx<size; idx++)
1893 DemodBuffer[idx] ^= 1;
1894 }
1895
1896 CmdPrintDemodBuff("x");
1897 return 1;
1898 }
1899
1900 int CmdPSKIdteck(const char *Cmd) {
1901
1902 if (!PSKDemod("", false)) {
1903 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1904 return 0;
1905 }
1906 size_t size = DemodBufferLen;
1907
1908 //get binary from PSK1 wave
1909 int idx = IdteckDemodPSK(DemodBuffer, &size);
1910 if (idx < 0){
1911 if (g_debugMode){
1912 if (idx == -1)
1913 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1914 else if (idx == -2)
1915 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1916 else if (idx == -3)
1917 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1918 else
1919 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1920 }
1921
1922 // if didn't find preamble try again inverting
1923 if (!PSKDemod("1", false)) {
1924 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1925 return 0;
1926 }
1927 idx = IdteckDemodPSK(DemodBuffer, &size);
1928 if (idx < 0){
1929 if (g_debugMode){
1930 if (idx == -1)
1931 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1932 else if (idx == -2)
1933 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1934 else if (idx == -3)
1935 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1936 else
1937 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1938 }
1939 return 0;
1940 }
1941 }
1942 setDemodBuf(DemodBuffer, 64, idx);
1943
1944 //got a good demod
1945 uint32_t id = 0;
1946 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1947 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1948
1949 //parity check (TBD)
1950 //checksum check (TBD)
1951
1952 //output
1953 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1954 return 1;
1955 }
1956
1957 // by marshmellow
1958 // takes 3 arguments - clock, invert, maxErr as integers
1959 // attempts to demodulate nrz only
1960 // prints binary found and saves in demodbuffer for further commands
1961 int NRZrawDemod(const char *Cmd, bool verbose)
1962 {
1963 int invert=0;
1964 int clk=0;
1965 int maxErr=100;
1966 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1967 if (clk==1){
1968 invert=1;
1969 clk=0;
1970 }
1971 if (invert != 0 && invert != 1) {
1972 PrintAndLog("Invalid argument: %s", Cmd);
1973 return 0;
1974 }
1975 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1976 size_t BitLen = getFromGraphBuf(BitStream);
1977 if (BitLen==0) return 0;
1978 int errCnt=0;
1979 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
1980 if (errCnt > maxErr){
1981 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1982 return 0;
1983 }
1984 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1985 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1986 return 0;
1987 }
1988 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1989 //prime demod buffer for output
1990 setDemodBuf(BitStream,BitLen,0);
1991
1992 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1993 if (verbose || g_debugMode) {
1994 PrintAndLog("NRZ demoded bitstream:");
1995 // Now output the bitstream to the scrollback by line of 16 bits
1996 printDemodBuff();
1997 }
1998 return 1;
1999 }
2000
2001 int CmdNRZrawDemod(const char *Cmd)
2002 {
2003 char cmdp = param_getchar(Cmd, 0);
2004 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
2005
2006 return NRZrawDemod(Cmd, TRUE);
2007 }
2008
2009 // by marshmellow
2010 // takes 3 arguments - clock, invert, maxErr as integers
2011 // attempts to demodulate psk only
2012 // prints binary found and saves in demodbuffer for further commands
2013 int CmdPSK1rawDemod(const char *Cmd)
2014 {
2015 int ans;
2016 char cmdp = param_getchar(Cmd, 0);
2017 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
2018
2019 ans = PSKDemod(Cmd, TRUE);
2020 //output
2021 if (!ans){
2022 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2023 return 0;
2024 }
2025 PrintAndLog("PSK1 demoded bitstream:");
2026 // Now output the bitstream to the scrollback by line of 16 bits
2027 printDemodBuff();
2028 return 1;
2029 }
2030
2031 // by marshmellow
2032 // takes same args as cmdpsk1rawdemod
2033 int CmdPSK2rawDemod(const char *Cmd)
2034 {
2035 int ans = 0;
2036 char cmdp = param_getchar(Cmd, 0);
2037 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
2038
2039 ans = PSKDemod(Cmd, TRUE);
2040 if (!ans){
2041 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2042 return 0;
2043 }
2044 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2045 PrintAndLog("PSK2 demoded bitstream:");
2046 // Now output the bitstream to the scrollback by line of 16 bits
2047 printDemodBuff();
2048 return 1;
2049 }
2050
2051 // by marshmellow - combines all raw demod functions into one menu command
2052 int CmdRawDemod(const char *Cmd)
2053 {
2054 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
2055 char cmdp2 = Cmd[1];
2056 int ans = 0;
2057
2058 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
2059 return usage_data_rawdemod();
2060
2061 if (cmdp == 'f' && cmdp2 == 's')
2062 ans = CmdFSKrawdemod(Cmd+2);
2063 else if(cmdp == 'a' && cmdp2 == 'b')
2064 ans = Cmdaskbiphdemod(Cmd+2);
2065 else if(cmdp == 'a' && cmdp2 == 'm')
2066 ans = Cmdaskmandemod(Cmd+2);
2067 else if(cmdp == 'a' && cmdp2 == 'r')
2068 ans = Cmdaskrawdemod(Cmd+2);
2069 else if(cmdp == 'n' && cmdp2 == 'r')
2070 ans = CmdNRZrawDemod(Cmd+2);
2071 else if(cmdp == 'p' && cmdp2 == '1')
2072 ans = CmdPSK1rawDemod(Cmd+2);
2073 else if(cmdp == 'p' && cmdp2 == '2')
2074 ans = CmdPSK2rawDemod(Cmd+2);
2075 else
2076 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2077
2078 return ans;
2079 }
2080 //iceman: diff sizes on the plotwindow?
2081 int CmdGrid(const char *Cmd)
2082 {
2083 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
2084 PlotGridXdefault = PlotGridX;
2085 PlotGridYdefault = PlotGridY;
2086 RepaintGraphWindow();
2087 return 0;
2088 }
2089
2090 int CmdHexsamples(const char *Cmd)
2091 {
2092 int i, j;
2093 int requested = 0;
2094 int offset = 0;
2095 char string_buf[25];
2096 char* string_ptr = string_buf;
2097 uint8_t got[BIGBUF_SIZE];
2098
2099 sscanf(Cmd, "%i %i", &requested, &offset);
2100
2101 /* if no args send something */
2102 if (requested == 0) {
2103 requested = 8;
2104 }
2105 if (offset + requested > sizeof(got)) {
2106 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2107 return 0;
2108 }
2109
2110 GetFromBigBuf(got,requested,offset);
2111 WaitForResponse(CMD_ACK,NULL);
2112
2113 i = 0;
2114 for (j = 0; j < requested; j++) {
2115 i++;
2116 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2117 if (i == 8) {
2118 *(string_ptr - 1) = '\0'; // remove the trailing space
2119 PrintAndLog("%s", string_buf);
2120 string_buf[0] = '\0';
2121 string_ptr = string_buf;
2122 i = 0;
2123 }
2124 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2125 *(string_ptr - 1) = '\0';
2126 PrintAndLog("%s", string_buf);
2127 string_buf[0] = '\0';
2128 }
2129 }
2130 return 0;
2131 }
2132
2133 int CmdHide(const char *Cmd)
2134 {
2135 HideGraphWindow();
2136 return 0;
2137 }
2138
2139 //zero mean GraphBuffer
2140 int CmdHpf(const char *Cmd)
2141 {
2142 int i;
2143 int accum = 0;
2144
2145 for (i = 10; i < GraphTraceLen; ++i)
2146 accum += GraphBuffer[i];
2147
2148 accum /= (GraphTraceLen - 10);
2149
2150 for (i = 0; i < GraphTraceLen; ++i)
2151 GraphBuffer[i] -= accum;
2152
2153 RepaintGraphWindow();
2154 return 0;
2155 }
2156
2157 bool _headBit( BitstreamOut *stream)
2158 {
2159 int bytepos = stream->position >> 3; // divide by 8
2160 int bitpos = (stream->position++) & 7; // mask out 00000111
2161 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2162 }
2163
2164 uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2165 {
2166 int i;
2167 uint8_t val = 0;
2168 for(i = 0 ; i < bits_per_sample; i++)
2169 val |= (_headBit(b) << (7-i));
2170
2171 return val;
2172 }
2173
2174 int getSamples(const char *Cmd, bool silent)
2175 {
2176 //If we get all but the last byte in bigbuf,
2177 // we don't have to worry about remaining trash
2178 // in the last byte in case the bits-per-sample
2179 // does not line up on byte boundaries
2180
2181 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2182
2183 int n = strtol(Cmd, NULL, 0);
2184
2185 if ( n == 0 || n > sizeof(got))
2186 n = sizeof(got);
2187
2188 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
2189 GetFromBigBuf(got,n,0);
2190 if (!silent) PrintAndLog("Data fetched");
2191 UsbCommand response;
2192 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2193 PrintAndLog("timeout while waiting for reply.");
2194 return 1;
2195 }
2196
2197 uint8_t bits_per_sample = 8;
2198
2199 //Old devices without this feature would send 0 at arg[0]
2200 if (response.arg[0] > 0) {
2201 sample_config *sc = (sample_config *) response.d.asBytes;
2202 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
2203 bits_per_sample = sc->bits_per_sample;
2204 }
2205
2206 if (bits_per_sample < 8) {
2207 if (!silent) PrintAndLog("Unpacking...");
2208 BitstreamOut bout = { got, bits_per_sample * n, 0};
2209 int j =0;
2210 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
2211 uint8_t sample = getByte(bits_per_sample, &bout);
2212 GraphBuffer[j] = ((int) sample )- 128;
2213 }
2214 GraphTraceLen = j;
2215 if (!silent) PrintAndLog("Unpacked %d samples" , j );
2216 } else {
2217 for (int j = 0; j < n; j++) {
2218 GraphBuffer[j] = ((int)got[j]) - 128;
2219 }
2220 GraphTraceLen = n;
2221 }
2222
2223 RepaintGraphWindow();
2224 return 0;
2225 }
2226
2227 int CmdSamples(const char *Cmd)
2228 {
2229 return getSamples(Cmd, false);
2230 }
2231
2232 int CmdTuneSamples(const char *Cmd)
2233 {
2234 int timeout = 0;
2235 printf("\nMeasuring antenna characteristics, please wait...");
2236
2237 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2238 clearCommandBuffer();
2239 SendCommand(&c);
2240 UsbCommand resp;
2241 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
2242 timeout++;
2243 printf(".");
2244 fflush(stdout);
2245 if (timeout > 7) {
2246 PrintAndLog("\nNo response from Proxmark. Aborting...");
2247 return 1;
2248 }
2249 }
2250
2251 #define NON_VOLTAGE 999
2252 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2253 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2254 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2255 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2256
2257 int peakv, peakf;
2258 int vLf125, vLf134, vHf;
2259 vLf125 = resp.arg[0] & 0xffff;
2260 vLf134 = resp.arg[0] >> 16;
2261 vHf = resp.arg[1] & 0xffff;;
2262 peakf = resp.arg[2] & 0xffff;
2263 peakv = resp.arg[2] >> 16;
2264 PrintAndLog("");
2265 if ( vLf125 > NON_VOLTAGE )
2266 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2267 if ( vLf134 > NON_VOLTAGE )
2268 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2269 if ( peakv > NON_VOLTAGE && peakf > 0 )
2270 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2271 if ( vHf > NON_VOLTAGE )
2272 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
2273
2274
2275
2276 if (peakv < LF_UNUSABLE_V)
2277 PrintAndLog("# Your LF antenna is unusable.");
2278 else if (peakv < LF_MARGINAL_V)
2279 PrintAndLog("# Your LF antenna is marginal.");
2280 if (vHf < HF_UNUSABLE_V)
2281 PrintAndLog("# Your HF antenna is unusable.");
2282 else if (vHf < HF_MARGINAL_V)
2283 PrintAndLog("# Your HF antenna is marginal.");
2284
2285 if (peakv >= LF_UNUSABLE_V) {
2286 for (int i = 0; i < 256; i++) {
2287 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2288 }
2289 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2290 PrintAndLog("\n");
2291 GraphTraceLen = 256;
2292 ShowGraphWindow();
2293 RepaintGraphWindow();
2294 }
2295 return 0;
2296 }
2297
2298 int CmdLoad(const char *Cmd)
2299 {
2300 char filename[FILE_PATH_SIZE] = {0x00};
2301 int len = 0;
2302
2303 len = strlen(Cmd);
2304 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2305 memcpy(filename, Cmd, len);
2306
2307 FILE *f = fopen(filename, "r");
2308 if (!f) {
2309 PrintAndLog("couldn't open '%s'", filename);
2310 return 0;
2311 }
2312
2313 GraphTraceLen = 0;
2314 char line[80];
2315 while (fgets(line, sizeof (line), f)) {
2316 GraphBuffer[GraphTraceLen] = atoi(line);
2317 GraphTraceLen++;
2318 }
2319 if (f) {
2320 fclose(f);
2321 f = NULL;
2322 }
2323 PrintAndLog("loaded %d samples", GraphTraceLen);
2324 RepaintGraphWindow();
2325 return 0;
2326 }
2327
2328 int CmdLtrim(const char *Cmd)
2329 {
2330 int ds = atoi(Cmd);
2331
2332 if (GraphTraceLen <= 0) return 0;
2333
2334 for (int i = ds; i < GraphTraceLen; ++i)
2335 GraphBuffer[i-ds] = GraphBuffer[i];
2336
2337 GraphTraceLen -= ds;
2338 RepaintGraphWindow();
2339 return 0;
2340 }
2341
2342 // trim graph to input argument length
2343 int CmdRtrim(const char *Cmd)
2344 {
2345 int ds = atoi(Cmd);
2346 GraphTraceLen = ds;
2347 RepaintGraphWindow();
2348 return 0;
2349 }
2350
2351 int CmdNorm(const char *Cmd)
2352 {
2353 int i;
2354 int max = INT_MIN, min = INT_MAX;
2355
2356 for (i = 10; i < GraphTraceLen; ++i) {
2357 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2358 if (GraphBuffer[i] < min) min = GraphBuffer[i];
2359 }
2360
2361 if (max != min) {
2362 for (i = 0; i < GraphTraceLen; ++i) {
2363 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2364 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2365 }
2366 }
2367 RepaintGraphWindow();
2368 return 0;
2369 }
2370
2371 int CmdPlot(const char *Cmd)
2372 {
2373 ShowGraphWindow();
2374 return 0;
2375 }
2376
2377 int CmdSave(const char *Cmd)
2378 {
2379 char filename[FILE_PATH_SIZE] = {0x00};
2380 int len = 0;
2381
2382 len = strlen(Cmd);
2383 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2384 memcpy(filename, Cmd, len);
2385
2386 FILE *f = fopen(filename, "w");
2387 if(!f) {
2388 PrintAndLog("couldn't open '%s'", filename);
2389 return 0;
2390 }
2391
2392 for (int i = 0; i < GraphTraceLen; i++)
2393 fprintf(f, "%d\n", GraphBuffer[i]);
2394
2395 if (f) {
2396 fclose(f);
2397 f = NULL;
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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