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FIX: `lf search` - em410x demod was a bit greedy.
[proxmark3-svn] / client / cmddata.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3 //
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
6 // the license.
7 //-----------------------------------------------------------------------------
8 // Data and Graph commands
9 //-----------------------------------------------------------------------------
10
11 #include <stdio.h> // also included in util.h
12 #include <string.h> // also included in util.h
13 #include <limits.h> // for CmdNorm INT_MIN && INT_MAX
14 #include "data.h" // also included in util.h
15 #include "cmddata.h"
16 #include "util.h"
17 #include "cmdmain.h"
18 #include "proxmark3.h"
19 #include "ui.h" // for show graph controls
20 #include "graph.h" // for graph data
21 #include "cmdparser.h"// already included in cmdmain.h
22 #include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
23 #include "lfdemod.h" // for demod code
24 #include "crc.h" // for pyramid checksum maxim
25 #include "crc16.h" // for FDXB demod checksum
26 #include "loclass/cipherutils.h" // for decimating samples in getsamples
27
28 uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
29 uint8_t g_debugMode = 0;
30 size_t DemodBufferLen = 0;
31 static int CmdHelp(const char *Cmd);
32
33 int usage_data_printdemodbuf(void){
34 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
35 PrintAndLog("Options:");
36 PrintAndLog(" h This help");
37 PrintAndLog(" x output in hex (omit for binary output)");
38 PrintAndLog(" o <offset> enter offset in # of bits");
39 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
40 return 0;
41 }
42 int usage_data_askem410xdemod(void){
43 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
44 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
45 PrintAndLog(" <invert>, 1 for invert output");
46 PrintAndLog(" [set maximum allowed errors], default = 100.");
47 PrintAndLog("");
48 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
49 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
50 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
51 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
52 PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
53 return 0;
54 }
55 int usage_data_manrawdecode(void){
56 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
57 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
58 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
59 PrintAndLog(" [invert] invert output");
60 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
61 PrintAndLog("");
62 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
63 return 0;
64 }
65 int usage_data_biphaserawdecode(void){
66 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
67 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
68 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
69 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
70 PrintAndLog("");
71 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
72 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
73 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
74 PrintAndLog("");
75 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
76 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
77 return 0;
78 }
79 int usage_data_rawdemod(void){
80 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
81 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
82 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
83 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
84 PrintAndLog(" <options> see specific modulation help for optional parameters");
85 PrintAndLog("");
86 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
87 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
88 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
89 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
90 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
91 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
92 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
93 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
94 return 0;
95 }
96 int usage_data_rawdemod_am(void){
97 PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
98 PrintAndLog(" ['s'] optional, check for Sequence Terminator");
99 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
100 PrintAndLog(" <invert>, 1 to invert output");
101 PrintAndLog(" [set maximum allowed errors], default = 100");
102 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
103 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
104 PrintAndLog("");
105 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
106 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
107 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
108 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
109 PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
110 return 0;
111 }
112 int usage_data_rawdemod_ab(void){
113 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
114 PrintAndLog(" [offset], offset to begin biphase, default=0");
115 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
116 PrintAndLog(" <invert>, 1 to invert output");
117 PrintAndLog(" [set maximum allowed errors], default = 100");
118 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
119 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
120 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
121 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
122 PrintAndLog(" NOTE: any other arg must have previous args set to work");
123 PrintAndLog("");
124 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
125 PrintAndLog("");
126 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
127 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
128 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
129 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
130 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
131 PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
132 PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
133 return 0;
134 }
135 int usage_data_rawdemod_ar(void){
136 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
137 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
138 PrintAndLog(" <invert>, 1 to invert output");
139 PrintAndLog(" [set maximum allowed errors], default = 100");
140 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
141 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
142 PrintAndLog("");
143 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
144 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
145 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
146 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
147 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
148 PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
149 PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
150 return 0;
151 }
152 int usage_data_rawdemod_fs(void){
153 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
154 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
155 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
156 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
157 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
158 PrintAndLog("");
159 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
160 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
161 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
162 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
163 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
164 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
165 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
166 return 0;
167 }
168 int usage_data_rawdemod_nr(void){
169 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
170 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
171 PrintAndLog(" <invert>, 1 for invert output");
172 PrintAndLog(" [set maximum allowed errors], default = 100.");
173 PrintAndLog("");
174 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
175 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
176 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
177 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
178 PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
179 return 0;
180 }
181 int usage_data_rawdemod_p1(void){
182 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
183 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
184 PrintAndLog(" <invert>, 1 for invert output");
185 PrintAndLog(" [set maximum allowed errors], default = 100.");
186 PrintAndLog("");
187 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
188 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
189 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
190 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
191 PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
192 return 0;
193 }
194 int usage_data_rawdemod_p2(void){
195 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
196 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
197 PrintAndLog(" <invert>, 1 for invert output");
198 PrintAndLog(" [set maximum allowed errors], default = 100.");
199 PrintAndLog("");
200 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
201 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
202 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
203 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
204 PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
205 return 0;
206 }
207 int usage_data_autocorr(void) {
208 PrintAndLog("Usage: data autocorr [window] [g]");
209 PrintAndLog("Options:");
210 PrintAndLog(" h This help");
211 PrintAndLog(" [window] window length for correlation - default = 4000");
212 PrintAndLog(" g save back to GraphBuffer (overwrite)");
213 return 0;
214 }
215 int usage_data_undecimate(void){
216 PrintAndLog("Usage: data undec [factor]");
217 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
218 PrintAndLog("Options: ");
219 PrintAndLog(" h This help");
220 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
221 PrintAndLog("Example: 'data undec 3'");
222 return 0;
223 }
224 int usage_data_detectclock(void){
225 PrintAndLog("Usage: data detectclock [modulation] <clock>");
226 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
227 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
228 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
229 PrintAndLog("");
230 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
231 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
232 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
233 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
234 return 0;
235 }
236 int usage_data_hex2bin(void){
237 PrintAndLog("Usage: data hex2bin <hex_digits>");
238 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
239 return 0;
240 }
241 int usage_data_bin2hex(void){
242 PrintAndLog("Usage: data bin2hex <binary_digits>");
243 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
244 return 0;
245 }
246 int usage_data_buffclear(void){
247 PrintAndLog("This function clears the bigbuff on deviceside");
248 PrintAndLog("Usage: data buffclear [h]");
249 PrintAndLog("Options:");
250 PrintAndLog(" h This help");
251 return 0;
252 }
253
254 //set the demod buffer with given array of binary (one bit per byte)
255 //by marshmellow
256 void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
257 {
258 if (buff == NULL) return;
259
260 if (size >= MAX_DEMOD_BUF_LEN)
261 size = MAX_DEMOD_BUF_LEN;
262
263 for (size_t i = 0; i < size; i++)
264 DemodBuffer[i] = buff[startIdx++];
265
266 DemodBufferLen = size;
267 }
268
269 int CmdSetDebugMode(const char *Cmd) {
270 int demod = 0;
271 sscanf(Cmd, "%i", &demod);
272 g_debugMode = (uint8_t)demod;
273 return 1;
274 }
275
276 //by marshmellow
277 void printDemodBuff(void)
278 {
279 int bitLen = DemodBufferLen;
280 if (bitLen < 1) {
281 PrintAndLog("no bits found in demod buffer");
282 return;
283 }
284 if (bitLen > 512) bitLen=512; //max output to 512 bits if we have more - should be plenty
285
286 char *bin = sprint_bin_break(DemodBuffer, bitLen,16);
287 PrintAndLog("%s",bin);
288 }
289
290 int CmdPrintDemodBuff(const char *Cmd)
291 {
292 char hex[512] = {0x00};
293 bool hexMode = false;
294 bool errors = false;
295 uint32_t offset = 0; //could be size_t but no param_get16...
296 uint32_t length = 512;
297 char cmdp = 0;
298 while(param_getchar(Cmd, cmdp) != 0x00)
299 {
300 switch(param_getchar(Cmd, cmdp))
301 {
302 case 'h':
303 case 'H':
304 return usage_data_printdemodbuf();
305 case 'x':
306 case 'X':
307 hexMode = true;
308 cmdp++;
309 break;
310 case 'o':
311 case 'O':
312 offset = param_get32ex(Cmd, cmdp+1, 0, 10);
313 if (!offset) errors = true;
314 cmdp += 2;
315 break;
316 case 'l':
317 case 'L':
318 length = param_get32ex(Cmd, cmdp+1, 512, 10);
319 if (!length) errors = true;
320 cmdp += 2;
321 break;
322 default:
323 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
324 errors = true;
325 break;
326 }
327 if(errors) break;
328 }
329 //Validations
330 if(errors) return usage_data_printdemodbuf();
331
332 if (DemodBufferLen == 0) {
333 PrintAndLog("Demodbuffer is empty");
334 return 0;
335 }
336 length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
337 int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
338
339 if (hexMode){
340 char *buf = (char *) (DemodBuffer + offset);
341 numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
342 numBits = binarraytohex(hex, buf, numBits);
343 if (numBits==0) return 0;
344 PrintAndLog("DemodBuffer: %s",hex);
345 } else {
346 PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
347 }
348 return 1;
349 }
350
351 //by marshmellow
352 //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
353 int CmdGetBitStream(const char *Cmd)
354 {
355 CmdHpf(Cmd);
356 for (uint32_t i = 0; i < GraphTraceLen; i++)
357 GraphBuffer[i] = (GraphBuffer[i] >= 1) ? 1 : 0;
358
359 RepaintGraphWindow();
360 return 0;
361 }
362
363 //by marshmellow
364 //print 64 bit EM410x ID in multiple formats
365 void printEM410x(uint32_t hi, uint64_t id)
366 {
367 if (!id && !hi) return;
368
369 PrintAndLog("EM410x %s pattern found", (hi) ? "XL" : "" );
370
371 uint64_t iii=1;
372 uint64_t id2lo=0;
373 uint32_t ii=0;
374 uint32_t i=0;
375 for (ii=5; ii>0;ii--){
376 for (i=0;i<8;i++){
377 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
378 }
379 }
380
381 if (hi){
382 //output 88 bit em id
383 PrintAndLog("\nEM TAG ID : %06X%016" PRIX64, hi, id);
384 } else{
385 //output 40 bit em id
386 PrintAndLog("\nEM TAG ID : %010" PRIX64, id);
387 PrintAndLog("\nPossible de-scramble patterns");
388 PrintAndLog("Unique TAG ID : %010" PRIX64, id2lo);
389 PrintAndLog("HoneyWell IdentKey {");
390 PrintAndLog("DEZ 8 : %08" PRIu64, id & 0xFFFFFF);
391 PrintAndLog("DEZ 10 : %010" PRIu64, id & 0xFFFFFFFF);
392 PrintAndLog("DEZ 5.5 : %05" PRIu64 ".%05" PRIu64, (id>>16LL) & 0xFFFF, (id & 0xFFFF));
393 PrintAndLog("DEZ 3.5A : %03" PRIu64 ".%05" PRIu64, (id>>32ll), (id & 0xFFFF));
394 PrintAndLog("DEZ 3.5B : %03" PRIu64 ".%05" PRIu64, (id & 0xFF000000) >> 24, (id & 0xFFFF));
395 PrintAndLog("DEZ 3.5C : %03" PRIu64 ".%05" PRIu64, (id & 0xFF0000) >> 16, (id & 0xFFFF));
396 PrintAndLog("DEZ 14/IK2 : %014" PRIu64, id);
397 PrintAndLog("DEZ 15/IK3 : %015" PRIu64, id2lo);
398 PrintAndLog("DEZ 20/ZK : %02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64,
399 (id2lo & 0xf000000000) >> 36,
400 (id2lo & 0x0f00000000) >> 32,
401 (id2lo & 0x00f0000000) >> 28,
402 (id2lo & 0x000f000000) >> 24,
403 (id2lo & 0x0000f00000) >> 20,
404 (id2lo & 0x00000f0000) >> 16,
405 (id2lo & 0x000000f000) >> 12,
406 (id2lo & 0x0000000f00) >> 8,
407 (id2lo & 0x00000000f0) >> 4,
408 (id2lo & 0x000000000f)
409 );
410 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
411 PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64, (id&0xFFFF), ((id>>16LL) & 0xFF), (id & 0xFFFFFF));
412 PrintAndLog("Pattern Paxton : %" PRIu64 " [0x%" PRIX64 "]", paxton, paxton);
413
414 uint32_t p1id = (id & 0xFFFFFF);
415 uint8_t arr[32] = {0x00};
416 int i =0;
417 int j = 23;
418 for (; i < 24; ++i, --j ){
419 arr[i] = (p1id >> i) & 1;
420 }
421
422 uint32_t p1 = 0;
423
424 p1 |= arr[23] << 21;
425 p1 |= arr[22] << 23;
426 p1 |= arr[21] << 20;
427 p1 |= arr[20] << 22;
428
429 p1 |= arr[19] << 18;
430 p1 |= arr[18] << 16;
431 p1 |= arr[17] << 19;
432 p1 |= arr[16] << 17;
433
434 p1 |= arr[15] << 13;
435 p1 |= arr[14] << 15;
436 p1 |= arr[13] << 12;
437 p1 |= arr[12] << 14;
438
439 p1 |= arr[11] << 6;
440 p1 |= arr[10] << 2;
441 p1 |= arr[9] << 7;
442 p1 |= arr[8] << 1;
443
444 p1 |= arr[7] << 0;
445 p1 |= arr[6] << 8;
446 p1 |= arr[5] << 11;
447 p1 |= arr[4] << 3;
448
449 p1 |= arr[3] << 10;
450 p1 |= arr[2] << 4;
451 p1 |= arr[1] << 5;
452 p1 |= arr[0] << 9;
453 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
454
455 uint16_t sebury1 = id & 0xFFFF;
456 uint8_t sebury2 = (id >> 16) & 0x7F;
457 uint32_t sebury3 = id & 0x7FFFFF;
458 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
459 }
460 return;
461 }
462
463 int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
464 {
465 size_t idx = 0;
466 size_t size = DemodBufferLen;
467 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
468 memcpy(BitStream, DemodBuffer, size);
469 int ans = Em410xDecode(BitStream, &size, &idx, hi, lo);
470 if ( ans < 0){
471 if (g_debugMode){
472 if (ans == -1)
473 PrintAndLog("DEBUG: Error - Em410x not only 0|1 in decoded bitstream");
474 else if (ans == -2)
475 PrintAndLog("DEBUG: Error - Em410x preamble not found");
476 else if (ans == -3)
477 PrintAndLog("DEBUG: Error - Em410x Size not correct: %d", size);
478 else if (ans == -4)
479 PrintAndLog("DEBUG: Error - Em410x parity failed");
480 }
481 return 0;
482 }
483 if (!lo && !hi) {
484 PrintAndLog("DEBUG: Error - Em410x decoded to all zeros");
485 return 0;
486 }
487
488 //set GraphBuffer for clone or sim command
489 setDemodBuf(BitStream, size, idx);
490 if (g_debugMode){
491 PrintAndLog("DEBUG: Em410x idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
492 printDemodBuff();
493 }
494
495 if (verbose)
496 printEM410x(*hi, *lo);
497
498 return 1;
499 }
500
501 int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
502 {
503 bool st = TRUE;
504 if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
505 return AskEm410xDecode(verbose, hi, lo);
506 }
507
508 //by marshmellow
509 //takes 3 arguments - clock, invert and maxErr as integers
510 //attempts to demodulate ask while decoding manchester
511 //prints binary found and saves in graphbuffer for further commands
512 int CmdAskEM410xDemod(const char *Cmd)
513 {
514 char cmdp = param_getchar(Cmd, 0);
515 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
516 return usage_data_askem410xdemod();
517
518 uint64_t lo = 0;
519 uint32_t hi = 0;
520 return AskEm410xDemod(Cmd, &hi, &lo, true);
521 }
522
523 //by marshmellow
524 //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
525 // (amp may not be needed anymore)
526 //verbose will print results and demoding messages
527 //emSearch will auto search for EM410x format in bitstream
528 //askType switches decode: ask/raw = 0, ask/manchester = 1
529 int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
530 int invert = 0;
531 int clk = 0;
532 int maxErr = 100;
533 int maxLen = 0;
534 char amp = param_getchar(Cmd, 0);
535 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
536 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
537 if (!maxLen) maxLen = BIGBUF_SIZE;
538 if (invert != 0 && invert != 1) {
539 PrintAndLog("Invalid argument: %s", Cmd);
540 return 0;
541 }
542 if (clk==1){
543 invert=1;
544 clk=0;
545 }
546 size_t BitLen = getFromGraphBuf(BitStream);
547 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
548 if (BitLen<255) return 0;
549 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
550 int foundclk = 0;
551 //amp before ST check
552 if (amp == 'a' || amp == 'A')
553 askAmp(BitStream, BitLen);
554
555 bool st = false;
556 if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
557 if (st) {
558 *stCheck = st;
559 clk = (clk == 0) ? foundclk : clk;
560 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
561 }
562
563 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, 0, askType);
564 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
565 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
566 return 0;
567 }
568 if (errCnt > maxErr){
569 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
570 return 0;
571 }
572 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
573
574 //output
575 setDemodBuf(BitStream,BitLen,0);
576 if (verbose || g_debugMode){
577 if (errCnt>0)
578 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
579 if (askType)
580 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
581 else
582 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
583 // Now output the bitstream to the scrollback by line of 16 bits
584 printDemodBuff();
585 }
586 uint64_t lo = 0;
587 uint32_t hi = 0;
588 if (emSearch)
589 AskEm410xDecode(true, &hi, &lo);
590
591 return 1;
592 }
593 int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
594 bool st = false;
595 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
596 }
597
598 //by marshmellow
599 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
600 //attempts to demodulate ask while decoding manchester
601 //prints binary found and saves in graphbuffer for further commands
602 int Cmdaskmandemod(const char *Cmd)
603 {
604 char cmdp = param_getchar(Cmd, 0);
605 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
606
607 bool st = TRUE;
608 if (Cmd[0]=='s')
609 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
610 else if (Cmd[1] == 's')
611 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
612
613 return ASKDemod(Cmd, TRUE, TRUE, 1);
614 }
615
616 //by marshmellow
617 //manchester decode
618 //stricktly take 10 and 01 and convert to 0 and 1
619 int Cmdmandecoderaw(const char *Cmd)
620 {
621 int i = 0;
622 int errCnt = 0;
623 size_t size = 0;
624 int invert = 0;
625 int maxErr = 20;
626 char cmdp = param_getchar(Cmd, 0);
627 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
628
629 if (DemodBufferLen==0) return 0;
630
631 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
632 int high = 0, low = 0;
633 for (; i < DemodBufferLen; ++i){
634 if (DemodBuffer[i] > high)
635 high=DemodBuffer[i];
636 else if(DemodBuffer[i] < low)
637 low=DemodBuffer[i];
638 BitStream[i] = DemodBuffer[i];
639 }
640 if (high>7 || low <0 ){
641 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
642 return 0;
643 }
644
645 sscanf(Cmd, "%i %i", &invert, &maxErr);
646 size = i;
647 errCnt = manrawdecode(BitStream, &size, invert);
648 if (errCnt >= maxErr){
649 PrintAndLog("Too many errors: %d",errCnt);
650 return 0;
651 }
652 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
653 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
654 if (errCnt == 0){
655 uint64_t id = 0;
656 uint32_t hi = 0;
657 size_t idx=0;
658 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
659 //need to adjust to set bitstream back to manchester encoded data
660 //setDemodBuf(BitStream, size, idx);
661 printEM410x(hi, id);
662 }
663 }
664 return 1;
665 }
666
667 //by marshmellow
668 //biphase decode
669 //take 01 or 10 = 0 and 11 or 00 = 1
670 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
671 // and "invert" default = 0 if 1 it will invert output
672 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
673 int CmdBiphaseDecodeRaw(const char *Cmd)
674 {
675 size_t size=0;
676 int offset=0, invert=0, maxErr=20, errCnt=0;
677 char cmdp = param_getchar(Cmd, 0);
678 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
679
680 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
681 if (DemodBufferLen==0){
682 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
683 return 0;
684 }
685 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
686 memcpy(BitStream, DemodBuffer, DemodBufferLen);
687 size = DemodBufferLen;
688 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
689 if (errCnt < 0){
690 PrintAndLog("Error during decode:%d", errCnt);
691 return 0;
692 }
693 if (errCnt > maxErr){
694 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
695 return 0;
696 }
697
698 if (errCnt > 0)
699 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
700
701 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
702 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
703
704 if (offset)
705 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
706 return 1;
707 }
708
709 //by marshmellow
710 // - ASK Demod then Biphase decode GraphBuffer samples
711 int ASKbiphaseDemod(const char *Cmd, bool verbose)
712 {
713 //ask raw demod GraphBuffer first
714 int offset=0, clk=0, invert=0, maxErr=0;
715 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
716
717 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
718 size_t size = getFromGraphBuf(BitStream);
719 if (size == 0 ) {
720 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
721 return 0;
722 }
723 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
724 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
725 if ( errCnt < 0 || errCnt > maxErr ) {
726 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
727 return 0;
728 }
729
730 //attempt to Biphase decode BitStream
731 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
732 if (errCnt < 0){
733 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
734 return 0;
735 }
736 if (errCnt > maxErr) {
737 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
738 return 0;
739 }
740 //success set DemodBuffer and return
741 setDemodBuf(BitStream, size, 0);
742 if (g_debugMode || verbose){
743 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
744 printDemodBuff();
745 }
746 return 1;
747 }
748 //by marshmellow - see ASKbiphaseDemod
749 int Cmdaskbiphdemod(const char *Cmd)
750 {
751 char cmdp = param_getchar(Cmd, 0);
752 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
753
754 return ASKbiphaseDemod(Cmd, TRUE);
755 }
756
757 //by marshmellow
758 //attempts to demodulate and identify a G_Prox_II verex/chubb card
759 //WARNING: if it fails during some points it will destroy the DemodBuffer data
760 // but will leave the GraphBuffer intact.
761 //if successful it will push askraw data back to demod buffer ready for emulation
762 int CmdG_Prox_II_Demod(const char *Cmd)
763 {
764 if (!ASKbiphaseDemod(Cmd, FALSE)){
765 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
766 return 0;
767 }
768 size_t size = DemodBufferLen;
769 //call lfdemod.c demod for gProxII
770 int ans = gProxII_Demod(DemodBuffer, &size);
771 if (ans < 0){
772 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
773 return 0;
774 }
775 //got a good demod of 96 bits
776 uint8_t ByteStream[8] = {0x00};
777 uint8_t xorKey = 0;
778 size_t startIdx = ans + 6; //start after 6 bit preamble
779
780 uint8_t bits_no_spacer[90];
781 //so as to not mess with raw DemodBuffer copy to a new sample array
782 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
783 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
784 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
785 if (bitLen != 72) {
786 if (g_debugMode)
787 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
788 return 0;
789 }
790 // get key and then get all 8 bytes of payload decoded
791 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
792 for (size_t idx = 0; idx < 8; idx++) {
793 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
794 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
795 }
796
797 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
798 uint8_t fmtLen = ByteStream[0]>>2;
799 uint32_t FC = 0;
800 uint32_t Card = 0;
801 //get raw 96 bits to print
802 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
803 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
804 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
805 bool unknown = FALSE;
806 switch(fmtLen) {
807 case 36:
808 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
809 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
810 break;
811 case 26:
812 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
813 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
814 break;
815 default :
816 unknown = TRUE;
817 break;
818 }
819 if ( !unknown)
820 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
821 else
822 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
823
824 setDemodBuf(DemodBuffer+ans, 96, 0);
825 return 1;
826 }
827
828 //by marshmellow
829 //see ASKDemod for what args are accepted
830 int CmdVikingDemod(const char *Cmd)
831 {
832 if (!ASKDemod(Cmd, false, false, 1)) {
833 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
834 return 0;
835 }
836 size_t size = DemodBufferLen;
837 //call lfdemod.c demod for Viking
838 int ans = VikingDemod_AM(DemodBuffer, &size);
839 if (ans < 0) {
840 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
841 return 0;
842 }
843 //got a good demod
844 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
845 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
846 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
847 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
848 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
849 PrintAndLog("Raw: %08X%08X", raw1,raw2);
850 setDemodBuf(DemodBuffer+ans, 64, 0);
851 return 1;
852 }
853
854 //by marshmellow - see ASKDemod
855 int Cmdaskrawdemod(const char *Cmd)
856 {
857 char cmdp = param_getchar(Cmd, 0);
858 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
859
860 return ASKDemod(Cmd, TRUE, FALSE, 0);
861 }
862
863 int AutoCorrelate(int window, bool SaveGrph, bool verbose)
864 {
865 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
866 size_t Correlation = 0;
867 int maxSum = 0;
868 int lastMax = 0;
869 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
870 for (int i = 0; i < GraphTraceLen - window; ++i) {
871 int sum = 0;
872 for (int j = 0; j < window; ++j) {
873 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
874 }
875 CorrelBuffer[i] = sum;
876 if (sum >= maxSum-100 && sum <= maxSum+100){
877 //another max
878 Correlation = i-lastMax;
879 lastMax = i;
880 if (sum > maxSum) maxSum = sum;
881 } else if (sum > maxSum){
882 maxSum=sum;
883 lastMax = i;
884 }
885 }
886 if (Correlation==0){
887 //try again with wider margin
888 for (int i = 0; i < GraphTraceLen - window; i++){
889 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
890 //another max
891 Correlation = i-lastMax;
892 lastMax = i;
893 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
894 }
895 }
896 }
897 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
898
899 if (SaveGrph){
900 GraphTraceLen = GraphTraceLen - window;
901 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
902 RepaintGraphWindow();
903 }
904 return Correlation;
905 }
906
907 int CmdAutoCorr(const char *Cmd)
908 {
909 char cmdp = param_getchar(Cmd, 0);
910 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
911 int window = 4000; //set default
912 char grph = 0;
913 bool updateGrph = FALSE;
914 sscanf(Cmd, "%i %c", &window, &grph);
915
916 if (window >= GraphTraceLen) {
917 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
918 return 0;
919 }
920 if (grph == 'g') updateGrph = TRUE;
921 return AutoCorrelate(window, updateGrph, TRUE);
922 }
923
924 int CmdBitsamples(const char *Cmd)
925 {
926 int cnt = 0;
927 uint8_t got[12288];
928
929 GetFromBigBuf(got, sizeof(got), 0);
930 WaitForResponse(CMD_ACK, NULL);
931
932 for (int j = 0; j < sizeof(got); j++) {
933 for (int k = 0; k < 8; k++) {
934 if(got[j] & (1 << (7 - k)))
935 GraphBuffer[cnt++] = 1;
936 else
937 GraphBuffer[cnt++] = 0;
938 }
939 }
940 GraphTraceLen = cnt;
941 RepaintGraphWindow();
942 return 0;
943 }
944
945 int CmdBuffClear(const char *Cmd)
946 {
947 char cmdp = param_getchar(Cmd, 0);
948 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
949
950 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
951 SendCommand(&c);
952 ClearGraph(true);
953 return 0;
954 }
955
956 int CmdDec(const char *Cmd)
957 {
958 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
959 GraphBuffer[i] = GraphBuffer[i * 2];
960
961 GraphTraceLen >>= 2;
962 PrintAndLog("decimated by 2");
963 RepaintGraphWindow();
964 return 0;
965 }
966 /**
967 * Undecimate - I'd call it 'interpolate', but we'll save that
968 * name until someone does an actual interpolation command, not just
969 * blindly repeating samples
970 * @param Cmd
971 * @return
972 */
973 int CmdUndec(const char *Cmd)
974 {
975 char cmdp = param_getchar(Cmd, 0);
976 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
977
978 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
979
980 //We have memory, don't we?
981 int swap[MAX_GRAPH_TRACE_LEN] = {0};
982 uint32_t g_index = 0, s_index = 0;
983 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
984 {
985 int count = 0;
986 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
987 swap[s_index+count] = GraphBuffer[g_index];
988 s_index += count;
989 g_index++;
990 }
991
992 memcpy(GraphBuffer, swap, s_index * sizeof(int));
993 GraphTraceLen = s_index;
994 RepaintGraphWindow();
995 return 0;
996 }
997
998 //by marshmellow
999 //shift graph zero up or down based on input + or -
1000 int CmdGraphShiftZero(const char *Cmd)
1001 {
1002 int shift = 0, shiftedVal = 0;
1003 //set options from parameters entered with the command
1004 sscanf(Cmd, "%i", &shift);
1005
1006 for(int i = 0; i < GraphTraceLen; i++){
1007 if ( i+shift >= GraphTraceLen)
1008 shiftedVal = GraphBuffer[i];
1009 else
1010 shiftedVal = GraphBuffer[i] + shift;
1011
1012 if (shiftedVal > 127)
1013 shiftedVal = 127;
1014 else if (shiftedVal < -127)
1015 shiftedVal = -127;
1016 GraphBuffer[i] = shiftedVal;
1017 }
1018 CmdNorm("");
1019 return 0;
1020 }
1021
1022 //by marshmellow
1023 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
1024 //similar to dirtheshold, threshold commands
1025 //takes a threshold length which is the measured length between two samples then determines an edge
1026 int CmdAskEdgeDetect(const char *Cmd)
1027 {
1028 int thresLen = 25;
1029 int last = 0;
1030 sscanf(Cmd, "%i", &thresLen);
1031
1032 for(int i = 1; i < GraphTraceLen; ++i){
1033 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1034 last = 127;
1035 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1036 last = -127;
1037
1038 GraphBuffer[i-1] = last;
1039 }
1040 RepaintGraphWindow();
1041 return 0;
1042 }
1043
1044 /* Print our clock rate */
1045 // uses data from graphbuffer
1046 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
1047 int CmdDetectClockRate(const char *Cmd)
1048 {
1049 char cmdp = param_getchar(Cmd, 0);
1050 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1051 return usage_data_detectclock();
1052
1053 int ans = 0;
1054 switch ( cmdp ) {
1055 case 'a' :
1056 case 'A' :
1057 ans = GetAskClock(Cmd+1, true, false);
1058 break;
1059 case 'f' :
1060 case 'F' :
1061 ans = GetFskClock("", true, false);
1062 break;
1063 case 'n' :
1064 case 'N' :
1065 ans = GetNrzClock("", true, false);
1066 break;
1067 case 'p' :
1068 case 'P' :
1069 ans = GetPskClock("", true, false);
1070 break;
1071 default :
1072 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1073 break;
1074 }
1075 return ans;
1076 }
1077
1078 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1079 {
1080 static char fType[8];
1081 memset(fType, 0x00, 8);
1082 char *fskType = fType;
1083 if (fchigh==10 && fclow==8){
1084 if (invert) //fsk2a
1085 memcpy(fskType, "FSK2a", 5);
1086 else //fsk2
1087 memcpy(fskType, "FSK2", 4);
1088 } else if (fchigh == 8 && fclow == 5) {
1089 if (invert)
1090 memcpy(fskType, "FSK1", 4);
1091 else
1092 memcpy(fskType, "FSK1a", 5);
1093 } else {
1094 memcpy(fskType, "FSK??", 5);
1095 }
1096 return fskType;
1097 }
1098
1099 //by marshmellow
1100 //fsk raw demod and print binary
1101 //takes 4 arguments - Clock, invert, fchigh, fclow
1102 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1103 int FSKrawDemod(const char *Cmd, bool verbose)
1104 {
1105 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1106 uint8_t rfLen, invert, fchigh, fclow;
1107
1108 //set defaults
1109 //set options from parameters entered with the command
1110 rfLen = param_get8(Cmd, 0);
1111 invert = param_get8(Cmd, 1);
1112 fchigh = param_get8(Cmd, 2);
1113 fclow = param_get8(Cmd, 3);
1114 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
1115 if (rfLen==1) {
1116 invert = 1; //if invert option only is used
1117 rfLen = 0;
1118 }
1119 }
1120
1121 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1122 size_t BitLen = getFromGraphBuf(BitStream);
1123 if (BitLen==0) return 0;
1124 //get field clock lengths
1125 uint16_t fcs=0;
1126 if (!fchigh || !fclow) {
1127 fcs = countFC(BitStream, BitLen, 1);
1128 if (!fcs) {
1129 fchigh = 10;
1130 fclow = 8;
1131 } else {
1132 fchigh = (fcs >> 8) & 0x00FF;
1133 fclow = fcs & 0x00FF;
1134 }
1135 }
1136 //get bit clock length
1137 if (!rfLen) {
1138 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
1139 if (!rfLen) rfLen = 50;
1140 }
1141 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
1142 if (size > 0) {
1143 setDemodBuf(BitStream, size, 0);
1144
1145 // Now output the bitstream to the scrollback by line of 16 bits
1146 if (verbose || g_debugMode) {
1147 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
1148 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
1149 printDemodBuff();
1150 }
1151 return 1;
1152 } else {
1153 if (g_debugMode) PrintAndLog("no FSK data found");
1154 }
1155 return 0;
1156 }
1157
1158 //by marshmellow
1159 //fsk raw demod and print binary
1160 //takes 4 arguments - Clock, invert, fchigh, fclow
1161 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1162 int CmdFSKrawdemod(const char *Cmd)
1163 {
1164 char cmdp = param_getchar(Cmd, 0);
1165 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
1166
1167 return FSKrawDemod(Cmd, TRUE);
1168 }
1169
1170 //by marshmellow (based on existing demod + holiman's refactor)
1171 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1172 //print full HID Prox ID and some bit format details if found
1173 int CmdFSKdemodHID(const char *Cmd)
1174 {
1175 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1176 uint32_t hi2=0, hi=0, lo=0;
1177
1178 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1179 size_t BitLen = getFromGraphBuf(BitStream);
1180 if (BitLen==0) return 0;
1181 //get binary from fsk wave
1182 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1183 if (idx<0){
1184 if (g_debugMode){
1185 if (idx==-1){
1186 PrintAndLog("DEBUG: Error - HID just noise detected");
1187 } else if (idx == -2) {
1188 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
1189 } else if (idx == -3) {
1190 PrintAndLog("DEBUG: Error - HID preamble not found");
1191 } else if (idx == -4) {
1192 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
1193 } else {
1194 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
1195 }
1196 }
1197 return 0;
1198 }
1199 if (hi2==0 && hi==0 && lo==0) {
1200 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
1201 return 0;
1202 }
1203 if (hi2 != 0){ //extra large HID tags
1204 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
1205 }
1206 else { //standard HID tags <38 bits
1207 uint8_t fmtLen = 0;
1208 uint32_t fc = 0;
1209 uint32_t cardnum = 0;
1210 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1211 uint32_t lo2=0;
1212 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1213 uint8_t idx3 = 1;
1214 while(lo2>1){ //find last bit set to 1 (format len bit)
1215 lo2=lo2>>1;
1216 idx3++;
1217 }
1218 fmtLen =idx3+19;
1219 fc =0;
1220 cardnum=0;
1221 if(fmtLen==26){
1222 cardnum = (lo>>1)&0xFFFF;
1223 fc = (lo>>17)&0xFF;
1224 }
1225 if(fmtLen==34){
1226 cardnum = (lo>>1)&0xFFFF;
1227 fc= ((hi&1)<<15)|(lo>>17);
1228 }
1229 if(fmtLen==35){
1230 cardnum = (lo>>1)&0xFFFFF;
1231 fc = ((hi&1)<<11)|(lo>>21);
1232 }
1233 }
1234 else { //if bit 38 is not set then 37 bit format is used
1235 fmtLen = 37;
1236 fc = 0;
1237 cardnum = 0;
1238 if(fmtLen == 37){
1239 cardnum = (lo>>1)&0x7FFFF;
1240 fc = ((hi&0xF)<<12)|(lo>>20);
1241 }
1242 }
1243 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
1244 }
1245 setDemodBuf(BitStream,BitLen,idx);
1246 if (g_debugMode){
1247 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1248 printDemodBuff();
1249 }
1250 return 1;
1251 }
1252
1253 //by marshmellow
1254 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1255 //print full Paradox Prox ID and some bit format details if found
1256 int CmdFSKdemodParadox(const char *Cmd)
1257 {
1258 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1259 uint32_t hi2=0, hi=0, lo=0;
1260
1261 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1262 size_t BitLen = getFromGraphBuf(BitStream);
1263 if (BitLen==0) return 0;
1264 //get binary from fsk wave
1265 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1266 if (idx<0){
1267 if (g_debugMode){
1268 if (idx==-1){
1269 PrintAndLog("DEBUG: Error - Paradox just noise detected");
1270 } else if (idx == -2) {
1271 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
1272 } else if (idx == -3) {
1273 PrintAndLog("DEBUG: Error - Paradox preamble not found");
1274 } else if (idx == -4) {
1275 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
1276 } else {
1277 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
1278 }
1279 }
1280 return 0;
1281 }
1282 if (hi2==0 && hi==0 && lo==0){
1283 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
1284 return 0;
1285 }
1286 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1287 uint32_t cardnum = (lo>>10)&0xFFFF;
1288 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1289 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1290 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1291
1292 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1293 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1294 setDemodBuf(BitStream,BitLen,idx);
1295 if (g_debugMode){
1296 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1297 printDemodBuff();
1298 }
1299 return 1;
1300 }
1301
1302 //by marshmellow
1303 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1304 //print ioprox ID and some format details
1305 int CmdFSKdemodIO(const char *Cmd)
1306 {
1307 int retval = 0;
1308 int idx = 0;
1309 char crcStr[20];
1310 memset(crcStr, 0x00, sizeof(crcStr) );
1311
1312 //something in graphbuffer?
1313 if (GraphTraceLen < 65) {
1314 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
1315 return retval;
1316 }
1317 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1318 size_t bitlen = getFromGraphBuf(BitStream);
1319 if (bitlen == 0) return retval;
1320
1321 //get binary from fsk wave
1322 idx = IOdemodFSK(BitStream, bitlen);
1323 if (idx<0){
1324 if (g_debugMode){
1325 if (idx==-1){
1326 PrintAndLog("DEBUG: Error - IO prox just noise detected");
1327 } else if (idx == -2) {
1328 PrintAndLog("DEBUG: Error - IO prox not enough samples");
1329 } else if (idx == -3) {
1330 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
1331 } else if (idx == -4) {
1332 PrintAndLog("DEBUG: Error - IO prox preamble not found");
1333 } else if (idx == -5) {
1334 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
1335 } else {
1336 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
1337 }
1338 }
1339 return retval;
1340 }
1341 if (idx==0){
1342 if (g_debugMode){
1343 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
1344 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
1345 }
1346 return retval;
1347 }
1348 //Index map
1349 //0 10 20 30 40 50 60
1350 //| | | | | | |
1351 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1352 //-----------------------------------------------------------------------------
1353 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1354 //
1355 //XSF(version)facility:codeone+codetwo (raw)
1356 //Handle the data
1357 if (idx + 64 > bitlen) {
1358 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
1359 return retval;
1360 }
1361
1362 if (g_debugMode) {
1363 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]);
1364 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]);
1365 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]);
1366 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]);
1367 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]);
1368 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]);
1369 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]);
1370 }
1371
1372 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1373 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1374 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1375 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1376 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1377 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1378 uint16_t calccrc = 0;
1379
1380 for (uint8_t i = 1; i < 6; ++i){
1381 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
1382 }
1383 calccrc &= 0xff;
1384 calccrc = 0xff - calccrc;
1385
1386 if (crc == calccrc) {
1387 snprintf(crcStr, 3, "ok");
1388 retval = 1;
1389 } else {
1390 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
1391
1392 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1393 retval = 0;
1394 }
1395
1396 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
1397 setDemodBuf(BitStream,64,idx);
1398 if (g_debugMode){
1399 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
1400 printDemodBuff();
1401 }
1402 return retval;
1403 }
1404
1405 //by marshmellow
1406 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1407 //print full AWID Prox ID and some bit format details if found
1408 int CmdFSKdemodAWID(const char *Cmd)
1409 {
1410 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1411 size_t size = getFromGraphBuf(BitStream);
1412 if (size==0) return 0;
1413
1414 //get binary from fsk wave
1415 int idx = AWIDdemodFSK(BitStream, &size);
1416 if (idx<=0){
1417 if (g_debugMode){
1418 if (idx == -1)
1419 PrintAndLog("DEBUG: Error - AWID not enough samples");
1420 else if (idx == -2)
1421 PrintAndLog("DEBUG: Error - AWID only noise found");
1422 else if (idx == -3)
1423 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
1424 else if (idx == -4)
1425 PrintAndLog("DEBUG: Error - AWID preamble not found");
1426 else if (idx == -5)
1427 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
1428 else
1429 PrintAndLog("DEBUG: Error - AWID error %d",idx);
1430 }
1431 return 0;
1432 }
1433
1434 // Index map
1435 // 0 10 20 30 40 50 60
1436 // | | | | | | |
1437 // 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
1438 // -----------------------------------------------------------------------------
1439 // 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
1440 // 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
1441 // |---26 bit---| |-----117----||-------------142-------------|
1442 // b = format bit len, o = odd parity of last 3 bits
1443 // f = facility code, c = card number
1444 // w = wiegand parity
1445 // (26 bit format shown)
1446
1447 //get raw ID before removing parities
1448 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1449 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1450 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1451 setDemodBuf(BitStream,96,idx);
1452
1453 size = removeParity(BitStream, idx+8, 4, 1, 88);
1454 if (size != 66){
1455 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
1456 return 0;
1457 }
1458 // ok valid card found!
1459
1460 // Index map
1461 // 0 10 20 30 40 50 60
1462 // | | | | | | |
1463 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1464 // -----------------------------------------------------------------------------
1465 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1466 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1467 // |26 bit| |-117--| |-----142------|
1468 //
1469 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1470 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1471 // |50 bit| |----4000------| |-----------2248975------------|
1472 // b = format bit len, o = odd parity of last 3 bits
1473 // f = facility code, c = card number
1474 // w = wiegand parity
1475
1476 uint32_t fc = 0;
1477 uint32_t cardnum = 0;
1478 uint32_t code1 = 0;
1479 uint32_t code2 = 0;
1480 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
1481
1482 switch(fmtLen) {
1483 case 26:
1484 fc = bytebits_to_byte(BitStream + 9, 8);
1485 cardnum = bytebits_to_byte(BitStream + 17, 16);
1486 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
1487 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1488 break;
1489 case 34:
1490 fc = bytebits_to_byte(BitStream + 9, 8);
1491 cardnum = bytebits_to_byte(BitStream + 17, 24);
1492 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1493 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1494 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1495 break;
1496 case 37:
1497 fc = bytebits_to_byte(BitStream + 9, 13);
1498 cardnum = bytebits_to_byte(BitStream + 22, 18);
1499 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1500 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1501 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1502 break;
1503 // case 40:
1504 // break;
1505 case 50:
1506 fc = bytebits_to_byte(BitStream + 9, 16);
1507 cardnum = bytebits_to_byte(BitStream + 25, 32);
1508 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1509 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1510 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1511 break;
1512 default:
1513 if (fmtLen > 32 ) {
1514 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1515 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1516 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1517 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1518 } else {
1519 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1520 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1521 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1522 }
1523 break;
1524 }
1525
1526 if (g_debugMode){
1527 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1528 printDemodBuff();
1529 }
1530 return 1;
1531 }
1532
1533 //by marshmellow
1534 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1535 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1536 int CmdFSKdemodPyramid(const char *Cmd)
1537 {
1538 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1539 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1540 size_t size = getFromGraphBuf(BitStream);
1541 if (size==0) return 0;
1542
1543 //get binary from fsk wave
1544 int idx = PyramiddemodFSK(BitStream, &size);
1545 if (idx < 0){
1546 if (g_debugMode){
1547 if (idx == -5)
1548 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
1549 else if (idx == -1)
1550 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
1551 else if (idx == -2)
1552 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
1553 else if (idx == -3)
1554 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
1555 else if (idx == -4)
1556 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
1557 else
1558 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
1559 }
1560 return 0;
1561 }
1562 // Index map
1563 // 0 10 20 30 40 50 60
1564 // | | | | | | |
1565 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1566 // -----------------------------------------------------------------------------
1567 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1568 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1569
1570 // 64 70 80 90 100 110 120
1571 // | | | | | | |
1572 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1573 // -----------------------------------------------------------------------------
1574 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1575 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1576 // |---115---||---------71---------|
1577 // s = format start bit, o = odd parity of last 7 bits
1578 // f = facility code, c = card number
1579 // w = wiegand parity, x = extra space for other formats
1580 // p = CRC8maxim checksum
1581 // (26 bit format shown)
1582
1583 //get bytes for checksum calc
1584 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1585 uint8_t csBuff[14] = {0x00};
1586 for (uint8_t i = 0; i < 13; i++){
1587 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1588 }
1589 //check checksum calc
1590 //checksum calc thanks to ICEMAN!!
1591 uint32_t checkCS = CRC8Maxim(csBuff, 13);
1592
1593 //get raw ID before removing parities
1594 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1595 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1596 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1597 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1598 setDemodBuf(BitStream, 128, idx);
1599
1600 size = removeParity(BitStream, idx+8, 8, 1, 120);
1601 if (size != 105){
1602 if (g_debugMode) {
1603 if ( size == 0)
1604 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1605 else
1606 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1607 }
1608 return 0;
1609 }
1610
1611 // ok valid card found!
1612
1613 // Index map
1614 // 0 10 20 30 40 50 60 70
1615 // | | | | | | | |
1616 // 01234567890123456789012345678901234567890123456789012345678901234567890
1617 // -----------------------------------------------------------------------
1618 // 00000000000000000000000000000000000000000000000000000000000000000000000
1619 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1620
1621 // 71 80 90 100
1622 // | | | |
1623 // 1 2 34567890 1234567890123456 7 8901234
1624 // ---------------------------------------
1625 // 1 1 01110011 0000000001000110 0 1001010
1626 // s w ffffffff cccccccccccccccc w ppppppp
1627 // |--115-| |------71------|
1628 // s = format start bit, o = odd parity of last 7 bits
1629 // f = facility code, c = card number
1630 // w = wiegand parity, x = extra space for other formats
1631 // p = CRC8-Maxim checksum
1632 // (26 bit format shown)
1633
1634 //find start bit to get fmtLen
1635 int j;
1636 for (j=0; j < size; ++j){
1637 if(BitStream[j]) break;
1638 }
1639
1640 uint8_t fmtLen = size-j-8;
1641 uint32_t fc = 0;
1642 uint32_t cardnum = 0;
1643 uint32_t code1 = 0;
1644
1645 if ( fmtLen == 26 ){
1646 fc = bytebits_to_byte(BitStream+73, 8);
1647 cardnum = bytebits_to_byte(BitStream+81, 16);
1648 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1649 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);
1650 } else if (fmtLen == 45) {
1651 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
1652 fc = bytebits_to_byte(BitStream+53, 10);
1653 cardnum = bytebits_to_byte(BitStream+63, 32);
1654 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1655 } else {
1656 cardnum = bytebits_to_byte(BitStream+81, 16);
1657 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1658 }
1659 if (checksum == checkCS)
1660 PrintAndLog("Checksum %02x passed", checksum);
1661 else
1662 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1663
1664 if (g_debugMode){
1665 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1666 printDemodBuff();
1667 }
1668 return 1;
1669 }
1670
1671 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1672 // 8 databits + 1 parity (1)
1673 // CIITT 16 chksum
1674 // NATIONAL CODE, ICAR database
1675 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1676 // FLAG (animal/non-animal)
1677 /*
1678 38 IDbits
1679 10 country code
1680 1 extra app bit
1681 14 reserved bits
1682 1 animal bit
1683 16 ccitt CRC chksum over 64bit ID CODE.
1684 24 appli bits.
1685
1686 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1687 */
1688 int CmdFDXBdemodBI(const char *Cmd){
1689
1690 int invert = 1;
1691 int clk = 32;
1692 int errCnt = 0;
1693 int maxErr = 0;
1694 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1695 size_t size = getFromGraphBuf(BitStream);
1696
1697 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1698 if ( errCnt < 0 || errCnt > maxErr ) {
1699 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
1700 return 0;
1701 }
1702
1703 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1704 if (errCnt < 0 || errCnt > maxErr ) {
1705 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
1706 return 0;
1707 }
1708
1709 int preambleIndex = FDXBdemodBI(BitStream, &size);
1710 if (preambleIndex < 0){
1711 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
1712 return 0;
1713 }
1714 if (size != 128) {
1715 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
1716 return 0;
1717 }
1718
1719 setDemodBuf(BitStream, 128, preambleIndex);
1720
1721 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1722 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
1723 if ( size != 104 ) {
1724 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
1725 return 0;
1726 }
1727 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1728
1729 //got a good demod
1730 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1731 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1732 uint8_t dataBlockBit = BitStream[48];
1733 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1734 uint8_t animalBit = BitStream[63];
1735 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1736 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1737
1738 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
1739 uint8_t raw[8];
1740 num_to_bytes(rawid, 8, raw);
1741
1742 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1743
1744 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1745 PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
1746 PrintAndLog("National Code: %012" PRIu64, NationalCode);
1747 PrintAndLog("CountryCode: %04u", countryCode);
1748
1749 PrintAndLog("Reserved/RFU: %u", reservedCode);
1750 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1751 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
1752 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1753
1754 if (g_debugMode) {
1755 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1756 char *bin = sprint_bin_break(BitStream,size,16);
1757 PrintAndLog("DEBUG BinStream:\n%s",bin);
1758 }
1759 return 1;
1760 }
1761
1762
1763 //by marshmellow
1764 //attempt to psk1 demod graph buffer
1765 int PSKDemod(const char *Cmd, bool verbose)
1766 {
1767 int invert = 0, clk = 0, maxErr = 100;
1768 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1769 if (clk==1){
1770 invert=1;
1771 clk=0;
1772 }
1773 if (invert != 0 && invert != 1) {
1774 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
1775 return 0;
1776 }
1777 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1778 size_t BitLen = getFromGraphBuf(BitStream);
1779 if (BitLen==0) return 0;
1780
1781 uint8_t carrier = countFC(BitStream, BitLen, 0);
1782 if (carrier!=2 && carrier!=4 && carrier!=8){
1783 //invalid carrier
1784 return 0;
1785 }
1786
1787 if (g_debugMode) PrintAndLog("Carrier: rf/%d",carrier);
1788
1789 int errCnt=0;
1790 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1791 if (errCnt > maxErr){
1792 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1793 return 0;
1794 }
1795 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1796 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1797 return 0;
1798 }
1799 if (verbose || g_debugMode){
1800 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
1801 if (errCnt>0){
1802 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1803 }
1804 }
1805 //prime demod buffer for output
1806 setDemodBuf(BitStream, BitLen, 0);
1807 return 1;
1808 }
1809
1810 // Indala 26 bit decode
1811 // by marshmellow
1812 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1813 int CmdIndalaDecode(const char *Cmd)
1814 {
1815 int ans;
1816 if (strlen(Cmd)>0){
1817 ans = PSKDemod(Cmd, 0);
1818 } else{ //default to RF/32
1819 ans = PSKDemod("32", 0);
1820 }
1821
1822 if (!ans){
1823 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
1824 return 0;
1825 }
1826
1827 uint8_t invert = 0;
1828 size_t size = DemodBufferLen;
1829 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1830 if (startIdx < 0 || size > 224) {
1831 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
1832 return -1;
1833 }
1834 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
1835 if (invert)
1836 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
1837
1838 //convert UID to HEX
1839 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1840 uid1 = bytebits_to_byte(DemodBuffer,32);
1841 uid2 = bytebits_to_byte(DemodBuffer+32,32);
1842 if (DemodBufferLen==64){
1843 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1844 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1845 );
1846 } else {
1847 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1848 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1849 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1850 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1851 uid7 = bytebits_to_byte(DemodBuffer+192,32);
1852 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1853 DemodBufferLen,
1854 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1855 );
1856 }
1857 if (g_debugMode){
1858 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
1859 printDemodBuff();
1860 }
1861 return 1;
1862 }
1863
1864 int CmdPSKNexWatch(const char *Cmd)
1865 {
1866 if (!PSKDemod("", false)) return 0;
1867
1868 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};
1869 size_t startIdx = 0, size = DemodBufferLen;
1870
1871 // sanity check.
1872 if ( size < sizeof(preamble) + 100) return 0;
1873
1874 bool invert = false;
1875 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1876 // if didn't find preamble try again inverting
1877 if (!PSKDemod("1", false)) return 0;
1878
1879 size = DemodBufferLen;
1880 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1881 invert = true;
1882 }
1883 if (size != 128) return 0;
1884 setDemodBuf(DemodBuffer, size, startIdx+4);
1885 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1886 //get ID
1887 uint32_t ID = 0;
1888 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1889 for (uint8_t idx=0; idx<8; idx++){
1890 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1891 }
1892 }
1893 //parity check (TBD)
1894
1895 //checksum check (TBD)
1896
1897 //output
1898 PrintAndLog("NexWatch ID: %d", ID);
1899 if (invert){
1900 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
1901 for (uint8_t idx=0; idx<size; idx++)
1902 DemodBuffer[idx] ^= 1;
1903 }
1904
1905 CmdPrintDemodBuff("x");
1906 return 1;
1907 }
1908
1909 int CmdPSKIdteck(const char *Cmd) {
1910
1911 if (!PSKDemod("", false)) {
1912 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1913 return 0;
1914 }
1915 size_t size = DemodBufferLen;
1916
1917 //get binary from PSK1 wave
1918 int idx = IdteckDemodPSK(DemodBuffer, &size);
1919 if (idx < 0){
1920 if (g_debugMode){
1921 if (idx == -1)
1922 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1923 else if (idx == -2)
1924 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1925 else if (idx == -3)
1926 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1927 else
1928 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1929 }
1930
1931 // if didn't find preamble try again inverting
1932 if (!PSKDemod("1", false)) {
1933 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1934 return 0;
1935 }
1936 idx = IdteckDemodPSK(DemodBuffer, &size);
1937 if (idx < 0){
1938 if (g_debugMode){
1939 if (idx == -1)
1940 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1941 else if (idx == -2)
1942 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1943 else if (idx == -3)
1944 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1945 else
1946 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1947 }
1948 return 0;
1949 }
1950 }
1951 setDemodBuf(DemodBuffer, 64, idx);
1952
1953 //got a good demod
1954 uint32_t id = 0;
1955 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1956 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1957
1958 //parity check (TBD)
1959 //checksum check (TBD)
1960
1961 //output
1962 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1963 return 1;
1964 }
1965
1966 // by marshmellow
1967 // takes 3 arguments - clock, invert, maxErr as integers
1968 // attempts to demodulate nrz only
1969 // prints binary found and saves in demodbuffer for further commands
1970 int NRZrawDemod(const char *Cmd, bool verbose)
1971 {
1972 int invert=0;
1973 int clk=0;
1974 int maxErr=100;
1975 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1976 if (clk==1){
1977 invert=1;
1978 clk=0;
1979 }
1980 if (invert != 0 && invert != 1) {
1981 PrintAndLog("Invalid argument: %s", Cmd);
1982 return 0;
1983 }
1984 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1985 size_t BitLen = getFromGraphBuf(BitStream);
1986 if (BitLen==0) return 0;
1987 int errCnt=0;
1988 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
1989 if (errCnt > maxErr){
1990 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1991 return 0;
1992 }
1993 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1994 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1995 return 0;
1996 }
1997 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1998 //prime demod buffer for output
1999 setDemodBuf(BitStream,BitLen,0);
2000
2001 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
2002 if (verbose || g_debugMode) {
2003 PrintAndLog("NRZ demoded bitstream:");
2004 // Now output the bitstream to the scrollback by line of 16 bits
2005 printDemodBuff();
2006 }
2007 return 1;
2008 }
2009
2010 int CmdNRZrawDemod(const char *Cmd)
2011 {
2012 char cmdp = param_getchar(Cmd, 0);
2013 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
2014
2015 return NRZrawDemod(Cmd, TRUE);
2016 }
2017
2018 // by marshmellow
2019 // takes 3 arguments - clock, invert, maxErr as integers
2020 // attempts to demodulate psk only
2021 // prints binary found and saves in demodbuffer for further commands
2022 int CmdPSK1rawDemod(const char *Cmd)
2023 {
2024 int ans;
2025 char cmdp = param_getchar(Cmd, 0);
2026 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
2027
2028 ans = PSKDemod(Cmd, TRUE);
2029 //output
2030 if (!ans){
2031 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2032 return 0;
2033 }
2034 PrintAndLog("PSK1 demoded bitstream:");
2035 // Now output the bitstream to the scrollback by line of 16 bits
2036 printDemodBuff();
2037 return 1;
2038 }
2039
2040 // by marshmellow
2041 // takes same args as cmdpsk1rawdemod
2042 int CmdPSK2rawDemod(const char *Cmd)
2043 {
2044 int ans = 0;
2045 char cmdp = param_getchar(Cmd, 0);
2046 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
2047
2048 ans = PSKDemod(Cmd, TRUE);
2049 if (!ans){
2050 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2051 return 0;
2052 }
2053 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2054 PrintAndLog("PSK2 demoded bitstream:");
2055 // Now output the bitstream to the scrollback by line of 16 bits
2056 printDemodBuff();
2057 return 1;
2058 }
2059
2060 // by marshmellow - combines all raw demod functions into one menu command
2061 int CmdRawDemod(const char *Cmd)
2062 {
2063 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
2064 char cmdp2 = Cmd[1];
2065 int ans = 0;
2066
2067 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
2068 return usage_data_rawdemod();
2069
2070 if (cmdp == 'f' && cmdp2 == 's')
2071 ans = CmdFSKrawdemod(Cmd+2);
2072 else if(cmdp == 'a' && cmdp2 == 'b')
2073 ans = Cmdaskbiphdemod(Cmd+2);
2074 else if(cmdp == 'a' && cmdp2 == 'm')
2075 ans = Cmdaskmandemod(Cmd+2);
2076 else if(cmdp == 'a' && cmdp2 == 'r')
2077 ans = Cmdaskrawdemod(Cmd+2);
2078 else if(cmdp == 'n' && cmdp2 == 'r')
2079 ans = CmdNRZrawDemod(Cmd+2);
2080 else if(cmdp == 'p' && cmdp2 == '1')
2081 ans = CmdPSK1rawDemod(Cmd+2);
2082 else if(cmdp == 'p' && cmdp2 == '2')
2083 ans = CmdPSK2rawDemod(Cmd+2);
2084 else
2085 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2086
2087 return ans;
2088 }
2089 //iceman: diff sizes on the plotwindow?
2090 int CmdGrid(const char *Cmd)
2091 {
2092 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
2093 PlotGridXdefault = PlotGridX;
2094 PlotGridYdefault = PlotGridY;
2095 RepaintGraphWindow();
2096 return 0;
2097 }
2098
2099 int CmdHexsamples(const char *Cmd)
2100 {
2101 int i, j;
2102 int requested = 0;
2103 int offset = 0;
2104 char string_buf[25];
2105 char* string_ptr = string_buf;
2106 uint8_t got[BIGBUF_SIZE];
2107
2108 sscanf(Cmd, "%i %i", &requested, &offset);
2109
2110 /* if no args send something */
2111 if (requested == 0) {
2112 requested = 8;
2113 }
2114 if (offset + requested > sizeof(got)) {
2115 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2116 return 0;
2117 }
2118
2119 GetFromBigBuf(got,requested,offset);
2120 WaitForResponse(CMD_ACK,NULL);
2121
2122 i = 0;
2123 for (j = 0; j < requested; j++) {
2124 i++;
2125 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2126 if (i == 8) {
2127 *(string_ptr - 1) = '\0'; // remove the trailing space
2128 PrintAndLog("%s", string_buf);
2129 string_buf[0] = '\0';
2130 string_ptr = string_buf;
2131 i = 0;
2132 }
2133 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2134 *(string_ptr - 1) = '\0';
2135 PrintAndLog("%s", string_buf);
2136 string_buf[0] = '\0';
2137 }
2138 }
2139 return 0;
2140 }
2141
2142 int CmdHide(const char *Cmd)
2143 {
2144 HideGraphWindow();
2145 return 0;
2146 }
2147
2148 //zero mean GraphBuffer
2149 int CmdHpf(const char *Cmd)
2150 {
2151 int i;
2152 int accum = 0;
2153
2154 for (i = 10; i < GraphTraceLen; ++i)
2155 accum += GraphBuffer[i];
2156
2157 accum /= (GraphTraceLen - 10);
2158
2159 for (i = 0; i < GraphTraceLen; ++i)
2160 GraphBuffer[i] -= accum;
2161
2162 RepaintGraphWindow();
2163 return 0;
2164 }
2165
2166 bool _headBit( BitstreamOut *stream)
2167 {
2168 int bytepos = stream->position >> 3; // divide by 8
2169 int bitpos = (stream->position++) & 7; // mask out 00000111
2170 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2171 }
2172
2173 uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2174 {
2175 int i;
2176 uint8_t val = 0;
2177 for(i = 0 ; i < bits_per_sample; i++)
2178 val |= (_headBit(b) << (7-i));
2179
2180 return val;
2181 }
2182
2183 int getSamples(const char *Cmd, bool silent)
2184 {
2185 //If we get all but the last byte in bigbuf,
2186 // we don't have to worry about remaining trash
2187 // in the last byte in case the bits-per-sample
2188 // does not line up on byte boundaries
2189
2190 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2191
2192 int n = strtol(Cmd, NULL, 0);
2193
2194 if ( n == 0 || n > sizeof(got))
2195 n = sizeof(got);
2196
2197 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
2198 GetFromBigBuf(got,n,0);
2199 if (!silent) PrintAndLog("Data fetched");
2200 UsbCommand response;
2201 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2202 PrintAndLog("timeout while waiting for reply.");
2203 return 1;
2204 }
2205
2206 uint8_t bits_per_sample = 8;
2207
2208 //Old devices without this feature would send 0 at arg[0]
2209 if (response.arg[0] > 0) {
2210 sample_config *sc = (sample_config *) response.d.asBytes;
2211 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
2212 bits_per_sample = sc->bits_per_sample;
2213 }
2214
2215 if (bits_per_sample < 8) {
2216 if (!silent) PrintAndLog("Unpacking...");
2217 BitstreamOut bout = { got, bits_per_sample * n, 0};
2218 int j =0;
2219 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
2220 uint8_t sample = getByte(bits_per_sample, &bout);
2221 GraphBuffer[j] = ((int) sample )- 128;
2222 }
2223 GraphTraceLen = j;
2224 if (!silent) PrintAndLog("Unpacked %d samples" , j );
2225 } else {
2226 for (int j = 0; j < n; j++) {
2227 GraphBuffer[j] = ((int)got[j]) - 128;
2228 }
2229 GraphTraceLen = n;
2230 }
2231
2232 RepaintGraphWindow();
2233 return 0;
2234 }
2235
2236 int CmdSamples(const char *Cmd)
2237 {
2238 return getSamples(Cmd, false);
2239 }
2240
2241 int CmdTuneSamples(const char *Cmd)
2242 {
2243 int timeout = 0;
2244 printf("\nMeasuring antenna characteristics, please wait...");
2245
2246 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2247 clearCommandBuffer();
2248 SendCommand(&c);
2249 UsbCommand resp;
2250 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
2251 timeout++;
2252 printf(".");
2253 fflush(stdout);
2254 if (timeout > 7) {
2255 PrintAndLog("\nNo response from Proxmark. Aborting...");
2256 return 1;
2257 }
2258 }
2259
2260 #define NON_VOLTAGE 999
2261 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2262 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2263 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2264 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2265
2266 int peakv, peakf;
2267 int vLf125, vLf134, vHf;
2268 vLf125 = resp.arg[0] & 0xffff;
2269 vLf134 = resp.arg[0] >> 16;
2270 vHf = resp.arg[1] & 0xffff;;
2271 peakf = resp.arg[2] & 0xffff;
2272 peakv = resp.arg[2] >> 16;
2273 PrintAndLog("");
2274 if ( vLf125 > NON_VOLTAGE )
2275 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2276 if ( vLf134 > NON_VOLTAGE )
2277 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2278 if ( peakv > NON_VOLTAGE && peakf > 0 )
2279 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2280 if ( vHf > NON_VOLTAGE )
2281 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
2282
2283
2284
2285 if (peakv < LF_UNUSABLE_V)
2286 PrintAndLog("# Your LF antenna is unusable.");
2287 else if (peakv < LF_MARGINAL_V)
2288 PrintAndLog("# Your LF antenna is marginal.");
2289 if (vHf < HF_UNUSABLE_V)
2290 PrintAndLog("# Your HF antenna is unusable.");
2291 else if (vHf < HF_MARGINAL_V)
2292 PrintAndLog("# Your HF antenna is marginal.");
2293
2294 if (peakv >= LF_UNUSABLE_V) {
2295 for (int i = 0; i < 256; i++) {
2296 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2297 }
2298 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2299 PrintAndLog("\n");
2300 GraphTraceLen = 256;
2301 ShowGraphWindow();
2302 RepaintGraphWindow();
2303 }
2304 return 0;
2305 }
2306
2307 int CmdLoad(const char *Cmd)
2308 {
2309 char filename[FILE_PATH_SIZE] = {0x00};
2310 int len = 0;
2311
2312 len = strlen(Cmd);
2313 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2314 memcpy(filename, Cmd, len);
2315
2316 FILE *f = fopen(filename, "r");
2317 if (!f) {
2318 PrintAndLog("couldn't open '%s'", filename);
2319 return 0;
2320 }
2321
2322 GraphTraceLen = 0;
2323 char line[80];
2324 while (fgets(line, sizeof (line), f)) {
2325 GraphBuffer[GraphTraceLen] = atoi(line);
2326 GraphTraceLen++;
2327 }
2328 if (f)
2329 fclose(f);
2330
2331 PrintAndLog("loaded %d samples", GraphTraceLen);
2332 RepaintGraphWindow();
2333 return 0;
2334 }
2335
2336 int CmdLtrim(const char *Cmd)
2337 {
2338 int ds = atoi(Cmd);
2339
2340 if (GraphTraceLen <= 0) return 0;
2341
2342 for (int i = ds; i < GraphTraceLen; ++i)
2343 GraphBuffer[i-ds] = GraphBuffer[i];
2344
2345 GraphTraceLen -= ds;
2346 RepaintGraphWindow();
2347 return 0;
2348 }
2349
2350 // trim graph to input argument length
2351 int CmdRtrim(const char *Cmd)
2352 {
2353 int ds = atoi(Cmd);
2354 GraphTraceLen = ds;
2355 RepaintGraphWindow();
2356 return 0;
2357 }
2358
2359 int CmdNorm(const char *Cmd)
2360 {
2361 int i;
2362 int max = INT_MIN, min = INT_MAX;
2363
2364 for (i = 10; i < GraphTraceLen; ++i) {
2365 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2366 if (GraphBuffer[i] < min) min = GraphBuffer[i];
2367 }
2368
2369 if (max != min) {
2370 for (i = 0; i < GraphTraceLen; ++i) {
2371 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2372 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2373 }
2374 }
2375 RepaintGraphWindow();
2376 return 0;
2377 }
2378
2379 int CmdPlot(const char *Cmd)
2380 {
2381 ShowGraphWindow();
2382 return 0;
2383 }
2384
2385 int CmdSave(const char *Cmd)
2386 {
2387 char filename[FILE_PATH_SIZE] = {0x00};
2388 int len = 0;
2389
2390 len = strlen(Cmd);
2391 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2392 memcpy(filename, Cmd, len);
2393
2394 FILE *f = fopen(filename, "w");
2395 if(!f) {
2396 PrintAndLog("couldn't open '%s'", filename);
2397 return 0;
2398 }
2399
2400 for (int i = 0; i < GraphTraceLen; i++)
2401 fprintf(f, "%d\n", GraphBuffer[i]);
2402
2403 if (f)
2404 fclose(f);
2405
2406 PrintAndLog("saved to '%s'", Cmd);
2407 return 0;
2408 }
2409
2410 int CmdScale(const char *Cmd)
2411 {
2412 CursorScaleFactor = atoi(Cmd);
2413 if (CursorScaleFactor == 0) {
2414 PrintAndLog("bad, can't have zero scale");
2415 CursorScaleFactor = 1;
2416 }
2417 RepaintGraphWindow();
2418 return 0;
2419 }
2420
2421 int CmdDirectionalThreshold(const char *Cmd)
2422 {
2423 int8_t upThres = param_get8(Cmd, 0);
2424 int8_t downThres = param_get8(Cmd, 1);
2425
2426 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2427
2428 int lastValue = GraphBuffer[0];
2429 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2430
2431 for (int i = 1; i < GraphTraceLen; ++i) {
2432 // Apply first threshold to samples heading up
2433 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2434 {
2435 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2436 GraphBuffer[i] = 1;
2437 }
2438 // Apply second threshold to samples heading down
2439 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2440 {
2441 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2442 GraphBuffer[i] = -1;
2443 }
2444 else
2445 {
2446 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2447 GraphBuffer[i] = GraphBuffer[i-1];
2448 }
2449 }
2450 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2451 RepaintGraphWindow();
2452 return 0;
2453 }
2454
2455 int CmdZerocrossings(const char *Cmd)
2456 {
2457 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2458 CmdHpf("");
2459
2460 int sign = 1;
2461 int zc = 0;
2462 int lastZc = 0;
2463
2464 for (int i = 0; i < GraphTraceLen; ++i) {
2465 if (GraphBuffer[i] * sign >= 0) {
2466 // No change in sign, reproduce the previous sample count.
2467 zc++;
2468 GraphBuffer[i] = lastZc;
2469 } else {
2470 // Change in sign, reset the sample count.
2471 sign = -sign;
2472 GraphBuffer[i] = lastZc;
2473 if (sign > 0) {
2474 lastZc = zc;
2475 zc = 0;
2476 }
2477 }
2478 }
2479
2480 RepaintGraphWindow();
2481 return 0;
2482 }
2483
2484 /**
2485 * @brief Utility for conversion via cmdline.
2486 * @param Cmd
2487 * @return
2488 */
2489 int Cmdbin2hex(const char *Cmd)
2490 {
2491 int bg =0, en =0;
2492 if(param_getptr(Cmd, &bg, &en, 0))
2493 return usage_data_bin2hex();
2494
2495 //Number of digits supplied as argument
2496 size_t length = en - bg +1;
2497 size_t bytelen = (length+7) / 8;
2498 uint8_t* arr = (uint8_t *) malloc(bytelen);
2499 memset(arr, 0, bytelen);
2500 BitstreamOut bout = { arr, 0, 0 };
2501
2502 for (; bg <= en ;bg++) {
2503 char c = Cmd[bg];
2504 if( c == '1') pushBit(&bout, 1);
2505 else if( c == '0') pushBit(&bout, 0);
2506 else PrintAndLog("Ignoring '%c'", c);
2507 }
2508
2509 if (bout.numbits % 8 != 0)
2510 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2511
2512 //Uses printf instead of PrintAndLog since the latter
2513 // adds linebreaks to each printout - this way was more convenient since we don't have to
2514 // allocate a string and write to that first...
2515 for(size_t x = 0; x < bytelen ; x++)
2516 printf("%02X", arr[x]);
2517
2518 printf("\n");
2519 free(arr);
2520 return 0;
2521 }
2522
2523 int Cmdhex2bin(const char *Cmd)
2524 {
2525 int bg =0, en =0;
2526 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
2527
2528 while (bg <= en ) {
2529 char x = Cmd[bg++];
2530 // capitalize
2531 if (x >= 'a' && x <= 'f')
2532 x -= 32;
2533 // convert to numeric value
2534 if (x >= '0' && x <= '9')
2535 x -= '0';
2536 else if (x >= 'A' && x <= 'F')
2537 x -= 'A' - 10;
2538 else
2539 continue;
2540
2541 //Uses printf instead of PrintAndLog since the latter
2542 // adds linebreaks to each printout - this way was more convenient since we don't have to
2543 // allocate a string and write to that first...
2544
2545 for(int i= 0 ; i < 4 ; ++i)
2546 printf("%d",(x >> (3 - i)) & 1);
2547 }
2548 printf("\n");
2549
2550 return 0;
2551 }
2552
2553 int CmdDataIIR(const char *Cmd){
2554 uint8_t k = param_get8(Cmd,0);
2555 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2556 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
2557 RepaintGraphWindow();
2558 return 0;
2559 }
2560
2561 static command_t CommandTable[] =
2562 {
2563 {"help", CmdHelp, 1, "This help"},
2564 {"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)"},
2565 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2566 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2567 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
2568 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2569 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2570 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
2571 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
2572 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
2573 {"dec", CmdDec, 1, "Decimate samples"},
2574 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
2575 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2576 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2577 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2578 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2579 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2580 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2581 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2582 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2583 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2584 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2585 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
2586 {"hide", CmdHide, 1, "Hide graph window"},
2587 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2588 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2589 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2590 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
2591 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2592 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2593 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2594 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
2595 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2596 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2597 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2598 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2599 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2600 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
2601 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
2602 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2603 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2604 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2605 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2606 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2607 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
2608 {NULL, NULL, 0, NULL}
2609 };
2610
2611 int CmdData(const char *Cmd){
2612 clearCommandBuffer();
2613 CmdsParse(CommandTable, Cmd);
2614 return 0;
2615 }
2616
2617 int CmdHelp(const char *Cmd)
2618 {
2619 CmdsHelp(CommandTable);
2620 return 0;
2621 }
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