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