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ADD: `data detectclock` - added clock blocks in plot window. Its a draft. Not working...
[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 uint8_t askamp = 0;
535 char amp = param_getchar(Cmd, 0);
536 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
537 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
538 if (!maxLen) maxLen = BIGBUF_SIZE;
539 if (invert != 0 && invert != 1) {
540 PrintAndLog("Invalid argument: %s", Cmd);
541 return 0;
542 }
543 if (clk==1){
544 invert=1;
545 clk=0;
546 }
547 size_t BitLen = getFromGraphBuf(BitStream);
548 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
549 if (BitLen<255) return 0;
550 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
551 int foundclk = 0;
552 //amp before ST check
553 if (amp == 'a' || amp == 'A')
554 askAmp(BitStream, BitLen);
555
556 bool st = false;
557 size_t ststart = 0, stend = 0;
558 if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend);
559 if (st) {
560 *stCheck = st;
561 clk = (clk == 0) ? foundclk : clk;
562 CursorCPos = ststart;
563 CursorDPos = stend;
564 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers");
565 }
566 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType);
567 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
568 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
569 return 0;
570 }
571 if (errCnt > maxErr){
572 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
573 return 0;
574 }
575 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
576
577 //output
578 setDemodBuf(BitStream,BitLen,0);
579 if (verbose || g_debugMode){
580 if (errCnt>0)
581 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
582 if (askType)
583 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
584 else
585 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
586 // Now output the bitstream to the scrollback by line of 16 bits
587 printDemodBuff();
588 }
589 uint64_t lo = 0;
590 uint32_t hi = 0;
591 if (emSearch)
592 AskEm410xDecode(true, &hi, &lo);
593
594 return 1;
595 }
596 int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
597 bool st = false;
598 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
599 }
600
601 //by marshmellow
602 //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
603 //attempts to demodulate ask while decoding manchester
604 //prints binary found and saves in graphbuffer for further commands
605 int Cmdaskmandemod(const char *Cmd)
606 {
607 char cmdp = param_getchar(Cmd, 0);
608 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
609
610 bool st = TRUE;
611 if (Cmd[0]=='s')
612 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
613 else if (Cmd[1] == 's')
614 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
615
616 return ASKDemod(Cmd, TRUE, TRUE, 1);
617 }
618
619 //by marshmellow
620 //manchester decode
621 //stricktly take 10 and 01 and convert to 0 and 1
622 int Cmdmandecoderaw(const char *Cmd)
623 {
624 int i = 0;
625 int errCnt = 0;
626 size_t size = 0;
627 int invert = 0;
628 int maxErr = 20;
629 char cmdp = param_getchar(Cmd, 0);
630 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
631
632 if (DemodBufferLen==0) return 0;
633
634 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
635 int high = 0, low = 0;
636 for (; i < DemodBufferLen; ++i){
637 if (DemodBuffer[i] > high)
638 high=DemodBuffer[i];
639 else if(DemodBuffer[i] < low)
640 low=DemodBuffer[i];
641 BitStream[i] = DemodBuffer[i];
642 }
643 if (high>7 || low <0 ){
644 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
645 return 0;
646 }
647
648 sscanf(Cmd, "%i %i", &invert, &maxErr);
649 size = i;
650 errCnt = manrawdecode(BitStream, &size, invert);
651 if (errCnt >= maxErr){
652 PrintAndLog("Too many errors: %d",errCnt);
653 return 0;
654 }
655 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
656 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
657 if (errCnt == 0){
658 uint64_t id = 0;
659 uint32_t hi = 0;
660 size_t idx=0;
661 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
662 //need to adjust to set bitstream back to manchester encoded data
663 //setDemodBuf(BitStream, size, idx);
664 printEM410x(hi, id);
665 }
666 }
667 return 1;
668 }
669
670 //by marshmellow
671 //biphase decode
672 //take 01 or 10 = 0 and 11 or 00 = 1
673 //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
674 // and "invert" default = 0 if 1 it will invert output
675 // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
676 int CmdBiphaseDecodeRaw(const char *Cmd)
677 {
678 size_t size=0;
679 int offset=0, invert=0, maxErr=20, errCnt=0;
680 char cmdp = param_getchar(Cmd, 0);
681 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
682
683 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
684 if (DemodBufferLen==0){
685 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
686 return 0;
687 }
688 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
689 memcpy(BitStream, DemodBuffer, DemodBufferLen);
690 size = DemodBufferLen;
691 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
692 if (errCnt < 0){
693 PrintAndLog("Error during decode:%d", errCnt);
694 return 0;
695 }
696 if (errCnt > maxErr){
697 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
698 return 0;
699 }
700
701 if (errCnt > 0)
702 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
703
704 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
705 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
706
707 if (offset)
708 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
709 return 1;
710 }
711
712 //by marshmellow
713 // - ASK Demod then Biphase decode GraphBuffer samples
714 int ASKbiphaseDemod(const char *Cmd, bool verbose)
715 {
716 //ask raw demod GraphBuffer first
717 int offset=0, clk=0, invert=0, maxErr=0;
718 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
719
720 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
721 size_t size = getFromGraphBuf(BitStream);
722 if (size == 0 ) {
723 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
724 return 0;
725 }
726 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
727 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
728 if ( errCnt < 0 || errCnt > maxErr ) {
729 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
730 return 0;
731 }
732
733 //attempt to Biphase decode BitStream
734 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
735 if (errCnt < 0){
736 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
737 return 0;
738 }
739 if (errCnt > maxErr) {
740 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
741 return 0;
742 }
743 //success set DemodBuffer and return
744 setDemodBuf(BitStream, size, 0);
745 if (g_debugMode || verbose){
746 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
747 printDemodBuff();
748 }
749 return 1;
750 }
751 //by marshmellow - see ASKbiphaseDemod
752 int Cmdaskbiphdemod(const char *Cmd)
753 {
754 char cmdp = param_getchar(Cmd, 0);
755 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
756
757 return ASKbiphaseDemod(Cmd, TRUE);
758 }
759
760 //by marshmellow
761 //attempts to demodulate and identify a G_Prox_II verex/chubb card
762 //WARNING: if it fails during some points it will destroy the DemodBuffer data
763 // but will leave the GraphBuffer intact.
764 //if successful it will push askraw data back to demod buffer ready for emulation
765 int CmdG_Prox_II_Demod(const char *Cmd)
766 {
767 if (!ASKbiphaseDemod(Cmd, FALSE)){
768 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
769 return 0;
770 }
771 size_t size = DemodBufferLen;
772 //call lfdemod.c demod for gProxII
773 int ans = gProxII_Demod(DemodBuffer, &size);
774 if (ans < 0){
775 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
776 return 0;
777 }
778 //got a good demod of 96 bits
779 uint8_t ByteStream[8] = {0x00};
780 uint8_t xorKey = 0;
781 size_t startIdx = ans + 6; //start after 6 bit preamble
782
783 uint8_t bits_no_spacer[90];
784 //so as to not mess with raw DemodBuffer copy to a new sample array
785 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
786 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
787 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
788 if (bitLen != 72) {
789 if (g_debugMode)
790 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
791 return 0;
792 }
793 // get key and then get all 8 bytes of payload decoded
794 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
795 for (size_t idx = 0; idx < 8; idx++) {
796 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
797 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
798 }
799
800 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
801 uint8_t fmtLen = ByteStream[0]>>2;
802 uint32_t FC = 0;
803 uint32_t Card = 0;
804 //get raw 96 bits to print
805 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
806 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
807 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
808 bool unknown = FALSE;
809 switch(fmtLen) {
810 case 36:
811 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
812 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
813 break;
814 case 26:
815 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
816 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
817 break;
818 default :
819 unknown = TRUE;
820 break;
821 }
822 if ( !unknown)
823 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
824 else
825 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
826
827 setDemodBuf(DemodBuffer+ans, 96, 0);
828 return 1;
829 }
830
831 //by marshmellow
832 //see ASKDemod for what args are accepted
833 int CmdVikingDemod(const char *Cmd)
834 {
835 if (!ASKDemod(Cmd, false, false, 1)) {
836 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
837 return 0;
838 }
839 size_t size = DemodBufferLen;
840
841 int ans = VikingDemod_AM(DemodBuffer, &size);
842 if (ans < 0) {
843 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
844 return 0;
845 }
846 //got a good demod
847 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
848 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
849 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
850 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
851 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
852 PrintAndLog("Raw: %08X%08X", raw1,raw2);
853 setDemodBuf(DemodBuffer+ans, 64, 0);
854 return 1;
855 }
856
857 //by marshmellow - see ASKDemod
858 int Cmdaskrawdemod(const char *Cmd)
859 {
860 char cmdp = param_getchar(Cmd, 0);
861 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
862
863 return ASKDemod(Cmd, TRUE, FALSE, 0);
864 }
865
866 int AutoCorrelate(int window, bool SaveGrph, bool verbose)
867 {
868 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
869 size_t Correlation = 0;
870 int maxSum = 0;
871 int lastMax = 0;
872 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
873 for (int i = 0; i < GraphTraceLen - window; ++i) {
874 int sum = 0;
875 for (int j = 0; j < window; ++j) {
876 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
877 }
878 CorrelBuffer[i] = sum;
879 if (sum >= maxSum-100 && sum <= maxSum+100){
880 //another max
881 Correlation = i-lastMax;
882 lastMax = i;
883 if (sum > maxSum) maxSum = sum;
884 } else if (sum > maxSum){
885 maxSum=sum;
886 lastMax = i;
887 }
888 }
889 if (Correlation==0){
890 //try again with wider margin
891 for (int i = 0; i < GraphTraceLen - window; i++){
892 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
893 //another max
894 Correlation = i-lastMax;
895 lastMax = i;
896 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
897 }
898 }
899 }
900 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
901
902 if (SaveGrph){
903 GraphTraceLen = GraphTraceLen - window;
904 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
905 RepaintGraphWindow();
906 }
907 return Correlation;
908 }
909
910 int CmdAutoCorr(const char *Cmd)
911 {
912 char cmdp = param_getchar(Cmd, 0);
913 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
914 int window = 4000; //set default
915 char grph = 0;
916 bool updateGrph = FALSE;
917 sscanf(Cmd, "%i %c", &window, &grph);
918
919 if (window >= GraphTraceLen) {
920 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
921 return 0;
922 }
923 if (grph == 'g') updateGrph = TRUE;
924 return AutoCorrelate(window, updateGrph, TRUE);
925 }
926
927 int CmdBitsamples(const char *Cmd)
928 {
929 int cnt = 0;
930 uint8_t got[12288];
931
932 GetFromBigBuf(got, sizeof(got), 0);
933 WaitForResponse(CMD_ACK, NULL);
934
935 for (int j = 0; j < sizeof(got); j++) {
936 for (int k = 0; k < 8; k++) {
937 if(got[j] & (1 << (7 - k)))
938 GraphBuffer[cnt++] = 1;
939 else
940 GraphBuffer[cnt++] = 0;
941 }
942 }
943 GraphTraceLen = cnt;
944 RepaintGraphWindow();
945 return 0;
946 }
947
948 int CmdBuffClear(const char *Cmd)
949 {
950 char cmdp = param_getchar(Cmd, 0);
951 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
952
953 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
954 SendCommand(&c);
955 ClearGraph(true);
956 return 0;
957 }
958
959 int CmdDec(const char *Cmd)
960 {
961 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
962 GraphBuffer[i] = GraphBuffer[i * 2];
963
964 GraphTraceLen >>= 2;
965 PrintAndLog("decimated by 2");
966 RepaintGraphWindow();
967 return 0;
968 }
969 /**
970 * Undecimate - I'd call it 'interpolate', but we'll save that
971 * name until someone does an actual interpolation command, not just
972 * blindly repeating samples
973 * @param Cmd
974 * @return
975 */
976 int CmdUndec(const char *Cmd)
977 {
978 char cmdp = param_getchar(Cmd, 0);
979 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
980
981 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
982
983 //We have memory, don't we?
984 int swap[MAX_GRAPH_TRACE_LEN] = {0};
985 uint32_t g_index = 0, s_index = 0;
986 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
987 {
988 int count = 0;
989 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
990 swap[s_index+count] = GraphBuffer[g_index];
991 s_index += count;
992 g_index++;
993 }
994
995 memcpy(GraphBuffer, swap, s_index * sizeof(int));
996 GraphTraceLen = s_index;
997 RepaintGraphWindow();
998 return 0;
999 }
1000
1001 //by marshmellow
1002 //shift graph zero up or down based on input + or -
1003 int CmdGraphShiftZero(const char *Cmd)
1004 {
1005 int shift = 0, shiftedVal = 0;
1006 //set options from parameters entered with the command
1007 sscanf(Cmd, "%i", &shift);
1008
1009 for(int i = 0; i < GraphTraceLen; i++){
1010 if ( i+shift >= GraphTraceLen)
1011 shiftedVal = GraphBuffer[i];
1012 else
1013 shiftedVal = GraphBuffer[i] + shift;
1014
1015 if (shiftedVal > 127)
1016 shiftedVal = 127;
1017 else if (shiftedVal < -127)
1018 shiftedVal = -127;
1019 GraphBuffer[i] = shiftedVal;
1020 }
1021 CmdNorm("");
1022 return 0;
1023 }
1024
1025 //by marshmellow
1026 //use large jumps in read samples to identify edges of waves and then amplify that wave to max
1027 //similar to dirtheshold, threshold commands
1028 //takes a threshold length which is the measured length between two samples then determines an edge
1029 int CmdAskEdgeDetect(const char *Cmd)
1030 {
1031 int thresLen = 25;
1032 int last = 0;
1033 sscanf(Cmd, "%i", &thresLen);
1034
1035 for(int i = 1; i < GraphTraceLen; ++i){
1036 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1037 last = 127;
1038 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1039 last = -127;
1040
1041 GraphBuffer[i-1] = last;
1042 }
1043 RepaintGraphWindow();
1044 return 0;
1045 }
1046
1047 /* Print our clock rate */
1048 // uses data from graphbuffer
1049 // adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
1050 int CmdDetectClockRate(const char *Cmd)
1051 {
1052 char cmdp = param_getchar(Cmd, 0);
1053 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1054 return usage_data_detectclock();
1055
1056 int clock = 0;
1057 switch ( cmdp ) {
1058 case 'a' :
1059 case 'A' :
1060 clock = GetAskClock(Cmd+1, true, false);
1061 break;
1062 case 'f' :
1063 case 'F' :
1064 clock = GetFskClock("", true, false);
1065 break;
1066 case 'n' :
1067 case 'N' :
1068 clock = GetNrzClock("", true, false);
1069 break;
1070 case 'p' :
1071 case 'P' :
1072 clock = GetPskClock("", true, false);
1073 break;
1074 default :
1075 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1076 break;
1077 }
1078 RepaintGraphWindow();
1079 return clock;
1080 }
1081
1082 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1083 {
1084 static char fType[8];
1085 memset(fType, 0x00, 8);
1086 char *fskType = fType;
1087 if (fchigh==10 && fclow==8){
1088 if (invert) //fsk2a
1089 memcpy(fskType, "FSK2a", 5);
1090 else //fsk2
1091 memcpy(fskType, "FSK2", 4);
1092 } else if (fchigh == 8 && fclow == 5) {
1093 if (invert)
1094 memcpy(fskType, "FSK1", 4);
1095 else
1096 memcpy(fskType, "FSK1a", 5);
1097 } else {
1098 memcpy(fskType, "FSK??", 5);
1099 }
1100 return fskType;
1101 }
1102
1103 //by marshmellow
1104 //fsk raw demod and print binary
1105 //takes 4 arguments - Clock, invert, fchigh, fclow
1106 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1107 int FSKrawDemod(const char *Cmd, bool verbose)
1108 {
1109 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1110 uint8_t rfLen, invert, fchigh, fclow;
1111
1112 //set defaults
1113 //set options from parameters entered with the command
1114 rfLen = param_get8(Cmd, 0);
1115 invert = param_get8(Cmd, 1);
1116 fchigh = param_get8(Cmd, 2);
1117 fclow = param_get8(Cmd, 3);
1118 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
1119 if (rfLen==1) {
1120 invert = 1; //if invert option only is used
1121 rfLen = 0;
1122 }
1123 }
1124
1125 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1126 size_t BitLen = getFromGraphBuf(BitStream);
1127 if (BitLen==0) return 0;
1128 //get field clock lengths
1129 uint16_t fcs=0;
1130 if (!fchigh || !fclow) {
1131 fcs = countFC(BitStream, BitLen, 1);
1132 if (!fcs) {
1133 fchigh = 10;
1134 fclow = 8;
1135 } else {
1136 fchigh = (fcs >> 8) & 0x00FF;
1137 fclow = fcs & 0x00FF;
1138 }
1139 }
1140 //get bit clock length
1141 if (!rfLen) {
1142 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
1143 if (!rfLen) rfLen = 50;
1144 }
1145 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
1146 if (size > 0) {
1147 setDemodBuf(BitStream, size, 0);
1148
1149 // Now output the bitstream to the scrollback by line of 16 bits
1150 if (verbose || g_debugMode) {
1151 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
1152 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
1153 printDemodBuff();
1154 }
1155 return 1;
1156 } else {
1157 if (g_debugMode) PrintAndLog("no FSK data found");
1158 }
1159 return 0;
1160 }
1161
1162 //by marshmellow
1163 //fsk raw demod and print binary
1164 //takes 4 arguments - Clock, invert, fchigh, fclow
1165 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1166 int CmdFSKrawdemod(const char *Cmd)
1167 {
1168 char cmdp = param_getchar(Cmd, 0);
1169 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
1170
1171 return FSKrawDemod(Cmd, TRUE);
1172 }
1173
1174 //by marshmellow (based on existing demod + holiman's refactor)
1175 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1176 //print full HID Prox ID and some bit format details if found
1177 int CmdFSKdemodHID(const char *Cmd)
1178 {
1179 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1180 uint32_t hi2=0, hi=0, lo=0;
1181
1182 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1183 size_t BitLen = getFromGraphBuf(BitStream);
1184 if (BitLen==0) return 0;
1185 //get binary from fsk wave
1186 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1187 if (idx<0){
1188 if (g_debugMode){
1189 if (idx==-1){
1190 PrintAndLog("DEBUG: Error - HID just noise detected");
1191 } else if (idx == -2) {
1192 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
1193 } else if (idx == -3) {
1194 PrintAndLog("DEBUG: Error - HID preamble not found");
1195 } else if (idx == -4) {
1196 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
1197 } else {
1198 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
1199 }
1200 }
1201 return 0;
1202 }
1203 if (hi2==0 && hi==0 && lo==0) {
1204 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
1205 return 0;
1206 }
1207 if (hi2 != 0){ //extra large HID tags
1208 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
1209 }
1210 else { //standard HID tags <38 bits
1211 uint8_t fmtLen = 0;
1212 uint32_t fc = 0;
1213 uint32_t cardnum = 0;
1214 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1215 uint32_t lo2=0;
1216 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1217 uint8_t idx3 = 1;
1218 while(lo2>1){ //find last bit set to 1 (format len bit)
1219 lo2=lo2>>1;
1220 idx3++;
1221 }
1222 fmtLen =idx3+19;
1223 fc =0;
1224 cardnum=0;
1225 if(fmtLen==26){
1226 cardnum = (lo>>1)&0xFFFF;
1227 fc = (lo>>17)&0xFF;
1228 }
1229 if(fmtLen==34){
1230 cardnum = (lo>>1)&0xFFFF;
1231 fc= ((hi&1)<<15)|(lo>>17);
1232 }
1233 if(fmtLen==35){
1234 cardnum = (lo>>1)&0xFFFFF;
1235 fc = ((hi&1)<<11)|(lo>>21);
1236 }
1237 }
1238 else { //if bit 38 is not set then 37 bit format is used
1239 fmtLen = 37;
1240 fc = 0;
1241 cardnum = 0;
1242 if(fmtLen == 37){
1243 cardnum = (lo>>1)&0x7FFFF;
1244 fc = ((hi&0xF)<<12)|(lo>>20);
1245 }
1246 }
1247 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
1248 }
1249 setDemodBuf(BitStream,BitLen,idx);
1250 if (g_debugMode){
1251 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1252 printDemodBuff();
1253 }
1254 return 1;
1255 }
1256
1257 //by marshmellow
1258 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1259 //print full Paradox Prox ID and some bit format details if found
1260 int CmdFSKdemodParadox(const char *Cmd)
1261 {
1262 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1263 uint32_t hi2=0, hi=0, lo=0;
1264
1265 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1266 size_t BitLen = getFromGraphBuf(BitStream);
1267 if (BitLen==0) return 0;
1268 //get binary from fsk wave
1269 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1270 if (idx<0){
1271 if (g_debugMode){
1272 if (idx==-1){
1273 PrintAndLog("DEBUG: Error - Paradox just noise detected");
1274 } else if (idx == -2) {
1275 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
1276 } else if (idx == -3) {
1277 PrintAndLog("DEBUG: Error - Paradox preamble not found");
1278 } else if (idx == -4) {
1279 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
1280 } else {
1281 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
1282 }
1283 }
1284 return 0;
1285 }
1286 if (hi2==0 && hi==0 && lo==0){
1287 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
1288 return 0;
1289 }
1290 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1291 uint32_t cardnum = (lo>>10)&0xFFFF;
1292 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1293 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1294 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1295
1296 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1297 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1298 setDemodBuf(BitStream,BitLen,idx);
1299 if (g_debugMode){
1300 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1301 printDemodBuff();
1302 }
1303 return 1;
1304 }
1305
1306 //by marshmellow
1307 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1308 //print ioprox ID and some format details
1309 int CmdFSKdemodIO(const char *Cmd)
1310 {
1311 int retval = 0;
1312 int idx = 0;
1313 char crcStr[20];
1314 memset(crcStr, 0x00, sizeof(crcStr) );
1315
1316 //something in graphbuffer?
1317 if (GraphTraceLen < 65) {
1318 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
1319 return retval;
1320 }
1321 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1322 size_t bitlen = getFromGraphBuf(BitStream);
1323 if (bitlen == 0) return retval;
1324
1325 //get binary from fsk wave
1326 idx = IOdemodFSK(BitStream, bitlen);
1327 if (idx<0){
1328 if (g_debugMode){
1329 if (idx==-1){
1330 PrintAndLog("DEBUG: Error - IO prox just noise detected");
1331 } else if (idx == -2) {
1332 PrintAndLog("DEBUG: Error - IO prox not enough samples");
1333 } else if (idx == -3) {
1334 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
1335 } else if (idx == -4) {
1336 PrintAndLog("DEBUG: Error - IO prox preamble not found");
1337 } else if (idx == -5) {
1338 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
1339 } else {
1340 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
1341 }
1342 }
1343 return retval;
1344 }
1345 if (idx==0){
1346 if (g_debugMode){
1347 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
1348 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
1349 }
1350 return retval;
1351 }
1352 //Index map
1353 //0 10 20 30 40 50 60
1354 //| | | | | | |
1355 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1356 //-----------------------------------------------------------------------------
1357 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1358 //
1359 //XSF(version)facility:codeone+codetwo (raw)
1360 //Handle the data
1361 if (idx + 64 > bitlen) {
1362 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
1363 return retval;
1364 }
1365
1366 if (g_debugMode) {
1367 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]);
1368 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]);
1369 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]);
1370 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]);
1371 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]);
1372 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]);
1373 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]);
1374 }
1375
1376 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1377 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1378 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1379 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1380 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1381 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1382 uint16_t calccrc = 0;
1383
1384 for (uint8_t i = 1; i < 6; ++i){
1385 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
1386 }
1387 calccrc &= 0xff;
1388 calccrc = 0xff - calccrc;
1389
1390 if (crc == calccrc) {
1391 snprintf(crcStr, 3, "ok");
1392 retval = 1;
1393 } else {
1394 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
1395
1396 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1397 retval = 0;
1398 }
1399
1400 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
1401 setDemodBuf(BitStream,64,idx);
1402 if (g_debugMode){
1403 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
1404 printDemodBuff();
1405 }
1406 return retval;
1407 }
1408
1409 //by marshmellow
1410 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1411 //print full AWID Prox ID and some bit format details if found
1412 int CmdFSKdemodAWID(const char *Cmd)
1413 {
1414 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1415 size_t size = getFromGraphBuf(BitStream);
1416 if (size==0) return 0;
1417
1418 //get binary from fsk wave
1419 int idx = AWIDdemodFSK(BitStream, &size);
1420 if (idx<=0){
1421 if (g_debugMode){
1422 if (idx == -1)
1423 PrintAndLog("DEBUG: Error - AWID not enough samples");
1424 else if (idx == -2)
1425 PrintAndLog("DEBUG: Error - AWID only noise found");
1426 else if (idx == -3)
1427 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
1428 else if (idx == -4)
1429 PrintAndLog("DEBUG: Error - AWID preamble not found");
1430 else if (idx == -5)
1431 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
1432 else
1433 PrintAndLog("DEBUG: Error - AWID error %d",idx);
1434 }
1435 return 0;
1436 }
1437
1438 // Index map
1439 // 0 10 20 30 40 50 60
1440 // | | | | | | |
1441 // 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
1442 // -----------------------------------------------------------------------------
1443 // 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
1444 // 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
1445 // |---26 bit---| |-----117----||-------------142-------------|
1446 // b = format bit len, o = odd parity of last 3 bits
1447 // f = facility code, c = card number
1448 // w = wiegand parity
1449 // (26 bit format shown)
1450
1451 //get raw ID before removing parities
1452 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1453 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1454 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1455 setDemodBuf(BitStream,96,idx);
1456
1457 size = removeParity(BitStream, idx+8, 4, 1, 88);
1458 if (size != 66){
1459 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
1460 return 0;
1461 }
1462 // ok valid card found!
1463
1464 // Index map
1465 // 0 10 20 30 40 50 60
1466 // | | | | | | |
1467 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1468 // -----------------------------------------------------------------------------
1469 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1470 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1471 // |26 bit| |-117--| |-----142------|
1472 //
1473 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1474 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1475 // |50 bit| |----4000------| |-----------2248975------------|
1476 // b = format bit len, o = odd parity of last 3 bits
1477 // f = facility code, c = card number
1478 // w = wiegand parity
1479
1480 uint32_t fc = 0;
1481 uint32_t cardnum = 0;
1482 uint32_t code1 = 0;
1483 uint32_t code2 = 0;
1484 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
1485
1486 switch(fmtLen) {
1487 case 26:
1488 fc = bytebits_to_byte(BitStream + 9, 8);
1489 cardnum = bytebits_to_byte(BitStream + 17, 16);
1490 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
1491 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1492 break;
1493 case 34:
1494 fc = bytebits_to_byte(BitStream + 9, 8);
1495 cardnum = bytebits_to_byte(BitStream + 17, 24);
1496 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1497 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1498 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1499 break;
1500 case 37:
1501 fc = bytebits_to_byte(BitStream + 9, 13);
1502 cardnum = bytebits_to_byte(BitStream + 22, 18);
1503 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1504 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1505 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1506 break;
1507 // case 40:
1508 // break;
1509 case 50:
1510 fc = bytebits_to_byte(BitStream + 9, 16);
1511 cardnum = bytebits_to_byte(BitStream + 25, 32);
1512 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1513 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1514 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1515 break;
1516 default:
1517 if (fmtLen > 32 ) {
1518 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1519 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1520 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1521 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1522 } else {
1523 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1524 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1525 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1526 }
1527 break;
1528 }
1529
1530 if (g_debugMode){
1531 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1532 printDemodBuff();
1533 }
1534 return 1;
1535 }
1536
1537 //by marshmellow
1538 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1539 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1540 int CmdFSKdemodPyramid(const char *Cmd)
1541 {
1542 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1543 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1544 size_t size = getFromGraphBuf(BitStream);
1545 if (size==0) return 0;
1546
1547 //get binary from fsk wave
1548 int idx = PyramiddemodFSK(BitStream, &size);
1549 if (idx < 0){
1550 if (g_debugMode){
1551 if (idx == -5)
1552 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
1553 else if (idx == -1)
1554 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
1555 else if (idx == -2)
1556 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
1557 else if (idx == -3)
1558 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
1559 else if (idx == -4)
1560 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
1561 else
1562 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
1563 }
1564 return 0;
1565 }
1566 // Index map
1567 // 0 10 20 30 40 50 60
1568 // | | | | | | |
1569 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1570 // -----------------------------------------------------------------------------
1571 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1572 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1573
1574 // 64 70 80 90 100 110 120
1575 // | | | | | | |
1576 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1577 // -----------------------------------------------------------------------------
1578 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1579 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1580 // |---115---||---------71---------|
1581 // s = format start bit, o = odd parity of last 7 bits
1582 // f = facility code, c = card number
1583 // w = wiegand parity, x = extra space for other formats
1584 // p = CRC8maxim checksum
1585 // (26 bit format shown)
1586
1587 //get bytes for checksum calc
1588 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1589 uint8_t csBuff[14] = {0x00};
1590 for (uint8_t i = 0; i < 13; i++){
1591 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1592 }
1593 //check checksum calc
1594 //checksum calc thanks to ICEMAN!!
1595 uint32_t checkCS = CRC8Maxim(csBuff, 13);
1596
1597 //get raw ID before removing parities
1598 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1599 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1600 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1601 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1602 setDemodBuf(BitStream, 128, idx);
1603
1604 size = removeParity(BitStream, idx+8, 8, 1, 120);
1605 if (size != 105){
1606 if (g_debugMode) {
1607 if ( size == 0)
1608 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1609 else
1610 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1611 }
1612 return 0;
1613 }
1614
1615 // ok valid card found!
1616
1617 // Index map
1618 // 0 10 20 30 40 50 60 70
1619 // | | | | | | | |
1620 // 01234567890123456789012345678901234567890123456789012345678901234567890
1621 // -----------------------------------------------------------------------
1622 // 00000000000000000000000000000000000000000000000000000000000000000000000
1623 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1624
1625 // 71 80 90 100
1626 // | | | |
1627 // 1 2 34567890 1234567890123456 7 8901234
1628 // ---------------------------------------
1629 // 1 1 01110011 0000000001000110 0 1001010
1630 // s w ffffffff cccccccccccccccc w ppppppp
1631 // |--115-| |------71------|
1632 // s = format start bit, o = odd parity of last 7 bits
1633 // f = facility code, c = card number
1634 // w = wiegand parity, x = extra space for other formats
1635 // p = CRC8-Maxim checksum
1636 // (26 bit format shown)
1637
1638 //find start bit to get fmtLen
1639 int j;
1640 for (j=0; j < size; ++j){
1641 if(BitStream[j]) break;
1642 }
1643
1644 uint8_t fmtLen = size-j-8;
1645 uint32_t fc = 0;
1646 uint32_t cardnum = 0;
1647 uint32_t code1 = 0;
1648
1649 if ( fmtLen == 26 ){
1650 fc = bytebits_to_byte(BitStream+73, 8);
1651 cardnum = bytebits_to_byte(BitStream+81, 16);
1652 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1653 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);
1654 } else if (fmtLen == 45) {
1655 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
1656 fc = bytebits_to_byte(BitStream+53, 10);
1657 cardnum = bytebits_to_byte(BitStream+63, 32);
1658 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1659 } else {
1660 cardnum = bytebits_to_byte(BitStream+81, 16);
1661 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1662 }
1663 if (checksum == checkCS)
1664 PrintAndLog("Checksum %02x passed", checksum);
1665 else
1666 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1667
1668 if (g_debugMode){
1669 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1670 printDemodBuff();
1671 }
1672 return 1;
1673 }
1674
1675 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1676 // 8 databits + 1 parity (1)
1677 // CIITT 16 chksum
1678 // NATIONAL CODE, ICAR database
1679 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1680 // FLAG (animal/non-animal)
1681 /*
1682 38 IDbits
1683 10 country code
1684 1 extra app bit
1685 14 reserved bits
1686 1 animal bit
1687 16 ccitt CRC chksum over 64bit ID CODE.
1688 24 appli bits.
1689
1690 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1691 */
1692 int CmdFDXBdemodBI(const char *Cmd){
1693
1694 int invert = 1;
1695 int clk = 32;
1696 int errCnt = 0;
1697 int maxErr = 0;
1698 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1699 size_t size = getFromGraphBuf(BitStream);
1700
1701 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1702 if ( errCnt < 0 || errCnt > maxErr ) {
1703 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
1704 return 0;
1705 }
1706
1707 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1708 if (errCnt < 0 || errCnt > maxErr ) {
1709 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
1710 return 0;
1711 }
1712
1713 int preambleIndex = FDXBdemodBI(BitStream, &size);
1714 if (preambleIndex < 0){
1715 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
1716 return 0;
1717 }
1718 if (size != 128) {
1719 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
1720 return 0;
1721 }
1722
1723 setDemodBuf(BitStream, 128, preambleIndex);
1724
1725 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1726 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
1727 if ( size != 104 ) {
1728 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
1729 return 0;
1730 }
1731 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1732
1733 //got a good demod
1734 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1735 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1736 uint8_t dataBlockBit = BitStream[48];
1737 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1738 uint8_t animalBit = BitStream[63];
1739 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1740 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1741
1742 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
1743 uint8_t raw[8];
1744 num_to_bytes(rawid, 8, raw);
1745
1746 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1747
1748 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1749 PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
1750 PrintAndLog("National Code: %012" PRIu64, NationalCode);
1751 PrintAndLog("CountryCode: %04u", countryCode);
1752
1753 PrintAndLog("Reserved/RFU: %u", reservedCode);
1754 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1755 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
1756 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1757
1758 if (g_debugMode) {
1759 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1760 char *bin = sprint_bin_break(BitStream,size,16);
1761 PrintAndLog("DEBUG BinStream:\n%s",bin);
1762 }
1763 return 1;
1764 }
1765
1766
1767 //by marshmellow
1768 //attempt to psk1 demod graph buffer
1769 int PSKDemod(const char *Cmd, bool verbose)
1770 {
1771 int invert = 0, clk = 0, maxErr = 100;
1772 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1773 if (clk==1){
1774 invert=1;
1775 clk=0;
1776 }
1777 if (invert != 0 && invert != 1) {
1778 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
1779 return 0;
1780 }
1781 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1782 size_t BitLen = getFromGraphBuf(BitStream);
1783 if (BitLen==0) return 0;
1784
1785 uint8_t carrier = countFC(BitStream, BitLen, 0);
1786 if (carrier!=2 && carrier!=4 && carrier!=8){
1787 //invalid carrier
1788 return 0;
1789 }
1790
1791 if (g_debugMode) PrintAndLog("Carrier: rf/%d",carrier);
1792
1793 int errCnt=0;
1794 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1795 if (errCnt > maxErr){
1796 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1797 return 0;
1798 }
1799 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1800 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1801 return 0;
1802 }
1803 if (verbose || g_debugMode){
1804 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
1805 if (errCnt>0){
1806 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1807 }
1808 }
1809 //prime demod buffer for output
1810 setDemodBuf(BitStream, BitLen, 0);
1811 return 1;
1812 }
1813
1814 // Indala 26 bit decode
1815 // by marshmellow
1816 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1817 int CmdIndalaDecode(const char *Cmd)
1818 {
1819 int ans;
1820 if (strlen(Cmd)>0){
1821 ans = PSKDemod(Cmd, 0);
1822 } else{ //default to RF/32
1823 ans = PSKDemod("32", 0);
1824 }
1825
1826 if (!ans){
1827 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
1828 return 0;
1829 }
1830
1831 uint8_t invert = 0;
1832 size_t size = DemodBufferLen;
1833 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1834 if (startIdx < 0 || size > 224) {
1835 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
1836 return -1;
1837 }
1838 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
1839 if (invert)
1840 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
1841
1842 //convert UID to HEX
1843 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1844 uid1 = bytebits_to_byte(DemodBuffer,32);
1845 uid2 = bytebits_to_byte(DemodBuffer+32,32);
1846 if (DemodBufferLen==64){
1847 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1848 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1849 );
1850 } else {
1851 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1852 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1853 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1854 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1855 uid7 = bytebits_to_byte(DemodBuffer+192,32);
1856 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1857 DemodBufferLen,
1858 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1859 );
1860 }
1861 if (g_debugMode){
1862 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
1863 printDemodBuff();
1864 }
1865 return 1;
1866 }
1867
1868 int CmdPSKNexWatch(const char *Cmd)
1869 {
1870 if (!PSKDemod("", false)) return 0;
1871
1872 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};
1873 size_t startIdx = 0, size = DemodBufferLen;
1874
1875 // sanity check.
1876 if ( size < sizeof(preamble) + 100) return 0;
1877
1878 bool invert = false;
1879 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1880 // if didn't find preamble try again inverting
1881 if (!PSKDemod("1", false)) return 0;
1882
1883 size = DemodBufferLen;
1884 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1885 invert = true;
1886 }
1887 if (size != 128) return 0;
1888 setDemodBuf(DemodBuffer, size, startIdx+4);
1889 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1890 //get ID
1891 uint32_t ID = 0;
1892 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1893 for (uint8_t idx=0; idx<8; idx++){
1894 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1895 }
1896 }
1897 //parity check (TBD)
1898
1899 //checksum check (TBD)
1900
1901 //output
1902 PrintAndLog("NexWatch ID: %d", ID);
1903 if (invert){
1904 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
1905 for (uint8_t idx=0; idx<size; idx++)
1906 DemodBuffer[idx] ^= 1;
1907 }
1908
1909 CmdPrintDemodBuff("x");
1910 return 1;
1911 }
1912
1913 int CmdPSKIdteck(const char *Cmd) {
1914
1915 if (!PSKDemod("", false)) {
1916 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1917 return 0;
1918 }
1919 size_t size = DemodBufferLen;
1920
1921 //get binary from PSK1 wave
1922 int idx = IdteckDemodPSK(DemodBuffer, &size);
1923 if (idx < 0){
1924 if (g_debugMode){
1925 if (idx == -1)
1926 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1927 else if (idx == -2)
1928 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1929 else if (idx == -3)
1930 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1931 else
1932 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1933 }
1934
1935 // if didn't find preamble try again inverting
1936 if (!PSKDemod("1", false)) {
1937 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1938 return 0;
1939 }
1940 idx = IdteckDemodPSK(DemodBuffer, &size);
1941 if (idx < 0){
1942 if (g_debugMode){
1943 if (idx == -1)
1944 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1945 else if (idx == -2)
1946 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1947 else if (idx == -3)
1948 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1949 else
1950 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1951 }
1952 return 0;
1953 }
1954 }
1955 setDemodBuf(DemodBuffer, 64, idx);
1956
1957 //got a good demod
1958 uint32_t id = 0;
1959 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1960 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1961
1962 //parity check (TBD)
1963 //checksum check (TBD)
1964
1965 //output
1966 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1967 return 1;
1968 }
1969
1970 // by marshmellow
1971 // takes 3 arguments - clock, invert, maxErr as integers
1972 // attempts to demodulate nrz only
1973 // prints binary found and saves in demodbuffer for further commands
1974 int NRZrawDemod(const char *Cmd, bool verbose)
1975 {
1976 int invert=0;
1977 int clk=0;
1978 int maxErr=100;
1979 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1980 if (clk==1){
1981 invert=1;
1982 clk=0;
1983 }
1984 if (invert != 0 && invert != 1) {
1985 PrintAndLog("Invalid argument: %s", Cmd);
1986 return 0;
1987 }
1988 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1989 size_t BitLen = getFromGraphBuf(BitStream);
1990 if (BitLen==0) return 0;
1991 int errCnt=0;
1992 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
1993 if (errCnt > maxErr){
1994 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1995 return 0;
1996 }
1997 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1998 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1999 return 0;
2000 }
2001 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
2002 //prime demod buffer for output
2003 setDemodBuf(BitStream,BitLen,0);
2004
2005 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
2006 if (verbose || g_debugMode) {
2007 PrintAndLog("NRZ demoded bitstream:");
2008 // Now output the bitstream to the scrollback by line of 16 bits
2009 printDemodBuff();
2010 }
2011 return 1;
2012 }
2013
2014 int CmdNRZrawDemod(const char *Cmd)
2015 {
2016 char cmdp = param_getchar(Cmd, 0);
2017 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
2018
2019 return NRZrawDemod(Cmd, TRUE);
2020 }
2021
2022 // by marshmellow
2023 // takes 3 arguments - clock, invert, maxErr as integers
2024 // attempts to demodulate psk only
2025 // prints binary found and saves in demodbuffer for further commands
2026 int CmdPSK1rawDemod(const char *Cmd)
2027 {
2028 int ans;
2029 char cmdp = param_getchar(Cmd, 0);
2030 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
2031
2032 ans = PSKDemod(Cmd, TRUE);
2033 //output
2034 if (!ans){
2035 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2036 return 0;
2037 }
2038 PrintAndLog("PSK1 demoded bitstream:");
2039 // Now output the bitstream to the scrollback by line of 16 bits
2040 printDemodBuff();
2041 return 1;
2042 }
2043
2044 // by marshmellow
2045 // takes same args as cmdpsk1rawdemod
2046 int CmdPSK2rawDemod(const char *Cmd)
2047 {
2048 int ans = 0;
2049 char cmdp = param_getchar(Cmd, 0);
2050 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
2051
2052 ans = PSKDemod(Cmd, TRUE);
2053 if (!ans){
2054 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2055 return 0;
2056 }
2057 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2058 PrintAndLog("PSK2 demoded bitstream:");
2059 // Now output the bitstream to the scrollback by line of 16 bits
2060 printDemodBuff();
2061 return 1;
2062 }
2063
2064 // by marshmellow - combines all raw demod functions into one menu command
2065 int CmdRawDemod(const char *Cmd)
2066 {
2067 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
2068 char cmdp2 = Cmd[1];
2069 int ans = 0;
2070
2071 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
2072 return usage_data_rawdemod();
2073
2074 if (cmdp == 'f' && cmdp2 == 's')
2075 ans = CmdFSKrawdemod(Cmd+2);
2076 else if(cmdp == 'a' && cmdp2 == 'b')
2077 ans = Cmdaskbiphdemod(Cmd+2);
2078 else if(cmdp == 'a' && cmdp2 == 'm')
2079 ans = Cmdaskmandemod(Cmd+2);
2080 else if(cmdp == 'a' && cmdp2 == 'r')
2081 ans = Cmdaskrawdemod(Cmd+2);
2082 else if(cmdp == 'n' && cmdp2 == 'r')
2083 ans = CmdNRZrawDemod(Cmd+2);
2084 else if(cmdp == 'p' && cmdp2 == '1')
2085 ans = CmdPSK1rawDemod(Cmd+2);
2086 else if(cmdp == 'p' && cmdp2 == '2')
2087 ans = CmdPSK2rawDemod(Cmd+2);
2088 else
2089 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2090
2091 return ans;
2092 }
2093 //iceman: diff sizes on the plotwindow?
2094 int CmdGrid(const char *Cmd)
2095 {
2096 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
2097 PlotGridXdefault = PlotGridX;
2098 PlotGridYdefault = PlotGridY;
2099 RepaintGraphWindow();
2100 return 0;
2101 }
2102 void setGrid_Clock(uint8_t clock){
2103 PlotGridXdefault = clock;
2104 RepaintGraphWindow();
2105 }
2106
2107 int CmdSetGraphMarkers(const char *Cmd) {
2108 sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
2109 RepaintGraphWindow();
2110 return 0;
2111 }
2112
2113 int CmdHexsamples(const char *Cmd)
2114 {
2115 int i, j;
2116 int requested = 0;
2117 int offset = 0;
2118 char string_buf[25];
2119 char* string_ptr = string_buf;
2120 uint8_t got[BIGBUF_SIZE];
2121
2122 sscanf(Cmd, "%i %i", &requested, &offset);
2123
2124 /* if no args send something */
2125 if (requested == 0) {
2126 requested = 8;
2127 }
2128 if (offset + requested > sizeof(got)) {
2129 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2130 return 0;
2131 }
2132
2133 GetFromBigBuf(got,requested,offset);
2134 WaitForResponse(CMD_ACK,NULL);
2135
2136 i = 0;
2137 for (j = 0; j < requested; j++) {
2138 i++;
2139 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2140 if (i == 8) {
2141 *(string_ptr - 1) = '\0'; // remove the trailing space
2142 PrintAndLog("%s", string_buf);
2143 string_buf[0] = '\0';
2144 string_ptr = string_buf;
2145 i = 0;
2146 }
2147 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2148 *(string_ptr - 1) = '\0';
2149 PrintAndLog("%s", string_buf);
2150 string_buf[0] = '\0';
2151 }
2152 }
2153 return 0;
2154 }
2155
2156 int CmdHide(const char *Cmd)
2157 {
2158 HideGraphWindow();
2159 return 0;
2160 }
2161
2162 //zero mean GraphBuffer
2163 int CmdHpf(const char *Cmd)
2164 {
2165 int i;
2166 int accum = 0;
2167
2168 for (i = 10; i < GraphTraceLen; ++i)
2169 accum += GraphBuffer[i];
2170
2171 accum /= (GraphTraceLen - 10);
2172
2173 for (i = 0; i < GraphTraceLen; ++i)
2174 GraphBuffer[i] -= accum;
2175
2176 RepaintGraphWindow();
2177 return 0;
2178 }
2179
2180 bool _headBit( BitstreamOut *stream)
2181 {
2182 int bytepos = stream->position >> 3; // divide by 8
2183 int bitpos = (stream->position++) & 7; // mask out 00000111
2184 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2185 }
2186
2187 uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2188 {
2189 int i;
2190 uint8_t val = 0;
2191 for(i = 0 ; i < bits_per_sample; i++)
2192 val |= (_headBit(b) << (7-i));
2193
2194 return val;
2195 }
2196
2197 int getSamples(const char *Cmd, bool silent)
2198 {
2199 //If we get all but the last byte in bigbuf,
2200 // we don't have to worry about remaining trash
2201 // in the last byte in case the bits-per-sample
2202 // does not line up on byte boundaries
2203
2204 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2205
2206 int n = strtol(Cmd, NULL, 0);
2207
2208 if ( n == 0 || n > sizeof(got))
2209 n = sizeof(got);
2210
2211 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
2212 GetFromBigBuf(got,n,0);
2213 if (!silent) PrintAndLog("Data fetched");
2214 UsbCommand response;
2215 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2216 PrintAndLog("timeout while waiting for reply.");
2217 return 1;
2218 }
2219
2220 uint8_t bits_per_sample = 8;
2221
2222 //Old devices without this feature would send 0 at arg[0]
2223 if (response.arg[0] > 0) {
2224 sample_config *sc = (sample_config *) response.d.asBytes;
2225 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
2226 bits_per_sample = sc->bits_per_sample;
2227 }
2228
2229 if (bits_per_sample < 8) {
2230 if (!silent) PrintAndLog("Unpacking...");
2231 BitstreamOut bout = { got, bits_per_sample * n, 0};
2232 int j =0;
2233 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
2234 uint8_t sample = getByte(bits_per_sample, &bout);
2235 GraphBuffer[j] = ((int) sample )- 128;
2236 }
2237 GraphTraceLen = j;
2238 if (!silent) PrintAndLog("Unpacked %d samples" , j );
2239 } else {
2240 for (int j = 0; j < n; j++) {
2241 GraphBuffer[j] = ((int)got[j]) - 128;
2242 }
2243 GraphTraceLen = n;
2244 }
2245
2246 RepaintGraphWindow();
2247 return 0;
2248 }
2249
2250 int CmdSamples(const char *Cmd)
2251 {
2252 return getSamples(Cmd, false);
2253 }
2254
2255 int CmdTuneSamples(const char *Cmd)
2256 {
2257 int timeout = 0;
2258 printf("\nMeasuring antenna characteristics, please wait...");
2259
2260 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2261 clearCommandBuffer();
2262 SendCommand(&c);
2263 UsbCommand resp;
2264 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
2265 timeout++;
2266 printf(".");
2267 fflush(stdout);
2268 if (timeout > 7) {
2269 PrintAndLog("\nNo response from Proxmark. Aborting...");
2270 return 1;
2271 }
2272 }
2273
2274 #define NON_VOLTAGE 999
2275 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2276 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2277 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2278 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2279
2280 int peakv, peakf;
2281 int vLf125, vLf134, vHf;
2282 vLf125 = resp.arg[0] & 0xffff;
2283 vLf134 = resp.arg[0] >> 16;
2284 vHf = resp.arg[1] & 0xffff;;
2285 peakf = resp.arg[2] & 0xffff;
2286 peakv = resp.arg[2] >> 16;
2287 PrintAndLog("");
2288 if ( vLf125 > NON_VOLTAGE )
2289 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2290 if ( vLf134 > NON_VOLTAGE )
2291 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2292 if ( peakv > NON_VOLTAGE && peakf > 0 )
2293 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2294 if ( vHf > NON_VOLTAGE )
2295 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
2296
2297
2298
2299 if (peakv < LF_UNUSABLE_V)
2300 PrintAndLog("# Your LF antenna is unusable.");
2301 else if (peakv < LF_MARGINAL_V)
2302 PrintAndLog("# Your LF antenna is marginal.");
2303 if (vHf < HF_UNUSABLE_V)
2304 PrintAndLog("# Your HF antenna is unusable.");
2305 else if (vHf < HF_MARGINAL_V)
2306 PrintAndLog("# Your HF antenna is marginal.");
2307
2308 if (peakv >= LF_UNUSABLE_V) {
2309 for (int i = 0; i < 256; i++) {
2310 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2311 }
2312 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2313 PrintAndLog("\n");
2314 GraphTraceLen = 256;
2315 ShowGraphWindow();
2316 RepaintGraphWindow();
2317 }
2318 return 0;
2319 }
2320
2321 int CmdLoad(const char *Cmd)
2322 {
2323 char filename[FILE_PATH_SIZE] = {0x00};
2324 int len = 0;
2325
2326 len = strlen(Cmd);
2327 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2328 memcpy(filename, Cmd, len);
2329
2330 FILE *f = fopen(filename, "r");
2331 if (!f) {
2332 PrintAndLog("couldn't open '%s'", filename);
2333 return 0;
2334 }
2335
2336 GraphTraceLen = 0;
2337 char line[80];
2338 while (fgets(line, sizeof (line), f)) {
2339 GraphBuffer[GraphTraceLen] = atoi(line);
2340 GraphTraceLen++;
2341 }
2342 if (f)
2343 fclose(f);
2344
2345 PrintAndLog("loaded %d samples", GraphTraceLen);
2346 RepaintGraphWindow();
2347 return 0;
2348 }
2349
2350 int CmdLtrim(const char *Cmd)
2351 {
2352 int ds = atoi(Cmd);
2353
2354 if (GraphTraceLen <= 0) return 0;
2355
2356 for (int i = ds; i < GraphTraceLen; ++i)
2357 GraphBuffer[i-ds] = GraphBuffer[i];
2358
2359 GraphTraceLen -= ds;
2360 RepaintGraphWindow();
2361 return 0;
2362 }
2363
2364 // trim graph to input argument length
2365 int CmdRtrim(const char *Cmd)
2366 {
2367 int ds = atoi(Cmd);
2368 GraphTraceLen = ds;
2369 RepaintGraphWindow();
2370 return 0;
2371 }
2372
2373 // trim graph (middle) piece
2374 int CmdMtrim(const char *Cmd) {
2375 int start = 0, stop = 0;
2376 sscanf(Cmd, "%i %i", &start, &stop);
2377
2378 if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;
2379 start++; //leave start position sample
2380
2381 GraphTraceLen -= stop - start;
2382 for (int i = 0; i < GraphTraceLen; i++) {
2383 GraphBuffer[start+i] = GraphBuffer[stop+i];
2384 }
2385 return 0;
2386 }
2387
2388
2389 int CmdNorm(const char *Cmd)
2390 {
2391 int i;
2392 int max = INT_MIN, min = INT_MAX;
2393
2394 for (i = 10; i < GraphTraceLen; ++i) {
2395 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2396 if (GraphBuffer[i] < min) min = GraphBuffer[i];
2397 }
2398
2399 if (max != min) {
2400 for (i = 0; i < GraphTraceLen; ++i) {
2401 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2402 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2403 }
2404 }
2405 RepaintGraphWindow();
2406 return 0;
2407 }
2408
2409 int CmdPlot(const char *Cmd)
2410 {
2411 ShowGraphWindow();
2412 return 0;
2413 }
2414
2415 int CmdSave(const char *Cmd)
2416 {
2417 char filename[FILE_PATH_SIZE] = {0x00};
2418 int len = 0;
2419
2420 len = strlen(Cmd);
2421 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2422 memcpy(filename, Cmd, len);
2423
2424 FILE *f = fopen(filename, "w");
2425 if(!f) {
2426 PrintAndLog("couldn't open '%s'", filename);
2427 return 0;
2428 }
2429
2430 for (int i = 0; i < GraphTraceLen; i++)
2431 fprintf(f, "%d\n", GraphBuffer[i]);
2432
2433 if (f)
2434 fclose(f);
2435
2436 PrintAndLog("saved to '%s'", Cmd);
2437 return 0;
2438 }
2439
2440 int CmdScale(const char *Cmd)
2441 {
2442 CursorScaleFactor = atoi(Cmd);
2443 if (CursorScaleFactor == 0) {
2444 PrintAndLog("bad, can't have zero scale");
2445 CursorScaleFactor = 1;
2446 }
2447 RepaintGraphWindow();
2448 return 0;
2449 }
2450
2451 int CmdDirectionalThreshold(const char *Cmd)
2452 {
2453 int8_t upThres = param_get8(Cmd, 0);
2454 int8_t downThres = param_get8(Cmd, 1);
2455
2456 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2457
2458 int lastValue = GraphBuffer[0];
2459 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2460
2461 for (int i = 1; i < GraphTraceLen; ++i) {
2462 // Apply first threshold to samples heading up
2463 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2464 {
2465 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2466 GraphBuffer[i] = 1;
2467 }
2468 // Apply second threshold to samples heading down
2469 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2470 {
2471 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2472 GraphBuffer[i] = -1;
2473 }
2474 else
2475 {
2476 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2477 GraphBuffer[i] = GraphBuffer[i-1];
2478 }
2479 }
2480 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2481 RepaintGraphWindow();
2482 return 0;
2483 }
2484
2485 int CmdZerocrossings(const char *Cmd)
2486 {
2487 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2488 CmdHpf("");
2489
2490 int sign = 1;
2491 int zc = 0;
2492 int lastZc = 0;
2493
2494 for (int i = 0; i < GraphTraceLen; ++i) {
2495 if (GraphBuffer[i] * sign >= 0) {
2496 // No change in sign, reproduce the previous sample count.
2497 zc++;
2498 GraphBuffer[i] = lastZc;
2499 } else {
2500 // Change in sign, reset the sample count.
2501 sign = -sign;
2502 GraphBuffer[i] = lastZc;
2503 if (sign > 0) {
2504 lastZc = zc;
2505 zc = 0;
2506 }
2507 }
2508 }
2509
2510 RepaintGraphWindow();
2511 return 0;
2512 }
2513
2514 /**
2515 * @brief Utility for conversion via cmdline.
2516 * @param Cmd
2517 * @return
2518 */
2519 int Cmdbin2hex(const char *Cmd)
2520 {
2521 int bg =0, en =0;
2522 if(param_getptr(Cmd, &bg, &en, 0))
2523 return usage_data_bin2hex();
2524
2525 //Number of digits supplied as argument
2526 size_t length = en - bg +1;
2527 size_t bytelen = (length+7) / 8;
2528 uint8_t* arr = (uint8_t *) malloc(bytelen);
2529 memset(arr, 0, bytelen);
2530 BitstreamOut bout = { arr, 0, 0 };
2531
2532 for (; bg <= en ;bg++) {
2533 char c = Cmd[bg];
2534 if( c == '1') pushBit(&bout, 1);
2535 else if( c == '0') pushBit(&bout, 0);
2536 else PrintAndLog("Ignoring '%c'", c);
2537 }
2538
2539 if (bout.numbits % 8 != 0)
2540 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2541
2542 //Uses printf instead of PrintAndLog since the latter
2543 // adds linebreaks to each printout - this way was more convenient since we don't have to
2544 // allocate a string and write to that first...
2545 for(size_t x = 0; x < bytelen ; x++)
2546 printf("%02X", arr[x]);
2547
2548 printf("\n");
2549 free(arr);
2550 return 0;
2551 }
2552
2553 int Cmdhex2bin(const char *Cmd)
2554 {
2555 int bg =0, en =0;
2556 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
2557
2558 while (bg <= en ) {
2559 char x = Cmd[bg++];
2560 // capitalize
2561 if (x >= 'a' && x <= 'f')
2562 x -= 32;
2563 // convert to numeric value
2564 if (x >= '0' && x <= '9')
2565 x -= '0';
2566 else if (x >= 'A' && x <= 'F')
2567 x -= 'A' - 10;
2568 else
2569 continue;
2570
2571 //Uses printf instead of PrintAndLog since the latter
2572 // adds linebreaks to each printout - this way was more convenient since we don't have to
2573 // allocate a string and write to that first...
2574
2575 for(int i= 0 ; i < 4 ; ++i)
2576 printf("%d",(x >> (3 - i)) & 1);
2577 }
2578 printf("\n");
2579
2580 return 0;
2581 }
2582
2583 int CmdDataIIR(const char *Cmd){
2584 uint8_t k = param_get8(Cmd,0);
2585 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2586 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
2587 RepaintGraphWindow();
2588 return 0;
2589 }
2590
2591 static command_t CommandTable[] =
2592 {
2593 {"help", CmdHelp, 1, "This help"},
2594 {"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)"},
2595 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2596 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2597 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
2598 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2599 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2600 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
2601 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
2602 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
2603 {"dec", CmdDec, 1, "Decimate samples"},
2604 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
2605 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2606 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2607 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2608 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2609 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2610 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2611 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2612 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2613 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2614 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2615 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
2616 {"hide", CmdHide, 1, "Hide graph window"},
2617 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2618 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2619 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2620 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
2621 {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
2622 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2623 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2624 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2625 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
2626 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2627 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2628 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2629 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2630 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2631 {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
2632 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
2633 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
2634 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2635 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2636 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2637 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2638 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2639 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
2640 {NULL, NULL, 0, NULL}
2641 };
2642
2643 int CmdData(const char *Cmd){
2644 clearCommandBuffer();
2645 CmdsParse(CommandTable, Cmd);
2646 return 0;
2647 }
2648
2649 int CmdHelp(const char *Cmd)
2650 {
2651 CmdsHelp(CommandTable);
2652 return 0;
2653 }
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