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CHG: Added PR #220 from PM3 Master. ref: https://github.com/Proxmark/proxmark3...
[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 ans = 0;
1057 switch ( cmdp ) {
1058 case 'a' :
1059 case 'A' :
1060 ans = GetAskClock(Cmd+1, true, false);
1061 break;
1062 case 'f' :
1063 case 'F' :
1064 ans = GetFskClock("", true, false);
1065 break;
1066 case 'n' :
1067 case 'N' :
1068 ans = GetNrzClock("", true, false);
1069 break;
1070 case 'p' :
1071 case 'P' :
1072 ans = 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 return ans;
1079 }
1080
1081 char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1082 {
1083 static char fType[8];
1084 memset(fType, 0x00, 8);
1085 char *fskType = fType;
1086 if (fchigh==10 && fclow==8){
1087 if (invert) //fsk2a
1088 memcpy(fskType, "FSK2a", 5);
1089 else //fsk2
1090 memcpy(fskType, "FSK2", 4);
1091 } else if (fchigh == 8 && fclow == 5) {
1092 if (invert)
1093 memcpy(fskType, "FSK1", 4);
1094 else
1095 memcpy(fskType, "FSK1a", 5);
1096 } else {
1097 memcpy(fskType, "FSK??", 5);
1098 }
1099 return fskType;
1100 }
1101
1102 //by marshmellow
1103 //fsk raw demod and print binary
1104 //takes 4 arguments - Clock, invert, fchigh, fclow
1105 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1106 int FSKrawDemod(const char *Cmd, bool verbose)
1107 {
1108 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1109 uint8_t rfLen, invert, fchigh, fclow;
1110
1111 //set defaults
1112 //set options from parameters entered with the command
1113 rfLen = param_get8(Cmd, 0);
1114 invert = param_get8(Cmd, 1);
1115 fchigh = param_get8(Cmd, 2);
1116 fclow = param_get8(Cmd, 3);
1117 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
1118 if (rfLen==1) {
1119 invert = 1; //if invert option only is used
1120 rfLen = 0;
1121 }
1122 }
1123
1124 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1125 size_t BitLen = getFromGraphBuf(BitStream);
1126 if (BitLen==0) return 0;
1127 //get field clock lengths
1128 uint16_t fcs=0;
1129 if (!fchigh || !fclow) {
1130 fcs = countFC(BitStream, BitLen, 1);
1131 if (!fcs) {
1132 fchigh = 10;
1133 fclow = 8;
1134 } else {
1135 fchigh = (fcs >> 8) & 0x00FF;
1136 fclow = fcs & 0x00FF;
1137 }
1138 }
1139 //get bit clock length
1140 if (!rfLen) {
1141 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
1142 if (!rfLen) rfLen = 50;
1143 }
1144 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
1145 if (size > 0) {
1146 setDemodBuf(BitStream, size, 0);
1147
1148 // Now output the bitstream to the scrollback by line of 16 bits
1149 if (verbose || g_debugMode) {
1150 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
1151 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
1152 printDemodBuff();
1153 }
1154 return 1;
1155 } else {
1156 if (g_debugMode) PrintAndLog("no FSK data found");
1157 }
1158 return 0;
1159 }
1160
1161 //by marshmellow
1162 //fsk raw demod and print binary
1163 //takes 4 arguments - Clock, invert, fchigh, fclow
1164 //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1165 int CmdFSKrawdemod(const char *Cmd)
1166 {
1167 char cmdp = param_getchar(Cmd, 0);
1168 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
1169
1170 return FSKrawDemod(Cmd, TRUE);
1171 }
1172
1173 //by marshmellow (based on existing demod + holiman's refactor)
1174 //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1175 //print full HID Prox ID and some bit format details if found
1176 int CmdFSKdemodHID(const char *Cmd)
1177 {
1178 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1179 uint32_t hi2=0, hi=0, lo=0;
1180
1181 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1182 size_t BitLen = getFromGraphBuf(BitStream);
1183 if (BitLen==0) return 0;
1184 //get binary from fsk wave
1185 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1186 if (idx<0){
1187 if (g_debugMode){
1188 if (idx==-1){
1189 PrintAndLog("DEBUG: Error - HID just noise detected");
1190 } else if (idx == -2) {
1191 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
1192 } else if (idx == -3) {
1193 PrintAndLog("DEBUG: Error - HID preamble not found");
1194 } else if (idx == -4) {
1195 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
1196 } else {
1197 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
1198 }
1199 }
1200 return 0;
1201 }
1202 if (hi2==0 && hi==0 && lo==0) {
1203 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
1204 return 0;
1205 }
1206 if (hi2 != 0){ //extra large HID tags
1207 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
1208 }
1209 else { //standard HID tags <38 bits
1210 uint8_t fmtLen = 0;
1211 uint32_t fc = 0;
1212 uint32_t cardnum = 0;
1213 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1214 uint32_t lo2=0;
1215 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1216 uint8_t idx3 = 1;
1217 while(lo2>1){ //find last bit set to 1 (format len bit)
1218 lo2=lo2>>1;
1219 idx3++;
1220 }
1221 fmtLen =idx3+19;
1222 fc =0;
1223 cardnum=0;
1224 if(fmtLen==26){
1225 cardnum = (lo>>1)&0xFFFF;
1226 fc = (lo>>17)&0xFF;
1227 }
1228 if(fmtLen==34){
1229 cardnum = (lo>>1)&0xFFFF;
1230 fc= ((hi&1)<<15)|(lo>>17);
1231 }
1232 if(fmtLen==35){
1233 cardnum = (lo>>1)&0xFFFFF;
1234 fc = ((hi&1)<<11)|(lo>>21);
1235 }
1236 }
1237 else { //if bit 38 is not set then 37 bit format is used
1238 fmtLen = 37;
1239 fc = 0;
1240 cardnum = 0;
1241 if(fmtLen == 37){
1242 cardnum = (lo>>1)&0x7FFFF;
1243 fc = ((hi&0xF)<<12)|(lo>>20);
1244 }
1245 }
1246 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
1247 }
1248 setDemodBuf(BitStream,BitLen,idx);
1249 if (g_debugMode){
1250 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1251 printDemodBuff();
1252 }
1253 return 1;
1254 }
1255
1256 //by marshmellow
1257 //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
1258 //print full Paradox Prox ID and some bit format details if found
1259 int CmdFSKdemodParadox(const char *Cmd)
1260 {
1261 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1262 uint32_t hi2=0, hi=0, lo=0;
1263
1264 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1265 size_t BitLen = getFromGraphBuf(BitStream);
1266 if (BitLen==0) return 0;
1267 //get binary from fsk wave
1268 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1269 if (idx<0){
1270 if (g_debugMode){
1271 if (idx==-1){
1272 PrintAndLog("DEBUG: Error - Paradox just noise detected");
1273 } else if (idx == -2) {
1274 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
1275 } else if (idx == -3) {
1276 PrintAndLog("DEBUG: Error - Paradox preamble not found");
1277 } else if (idx == -4) {
1278 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
1279 } else {
1280 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
1281 }
1282 }
1283 return 0;
1284 }
1285 if (hi2==0 && hi==0 && lo==0){
1286 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
1287 return 0;
1288 }
1289 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1290 uint32_t cardnum = (lo>>10)&0xFFFF;
1291 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1292 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1293 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1294
1295 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1296 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1297 setDemodBuf(BitStream,BitLen,idx);
1298 if (g_debugMode){
1299 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1300 printDemodBuff();
1301 }
1302 return 1;
1303 }
1304
1305 //by marshmellow
1306 //IO-Prox demod - FSK RF/64 with preamble of 000000001
1307 //print ioprox ID and some format details
1308 int CmdFSKdemodIO(const char *Cmd)
1309 {
1310 int retval = 0;
1311 int idx = 0;
1312 char crcStr[20];
1313 memset(crcStr, 0x00, sizeof(crcStr) );
1314
1315 //something in graphbuffer?
1316 if (GraphTraceLen < 65) {
1317 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
1318 return retval;
1319 }
1320 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1321 size_t bitlen = getFromGraphBuf(BitStream);
1322 if (bitlen == 0) return retval;
1323
1324 //get binary from fsk wave
1325 idx = IOdemodFSK(BitStream, bitlen);
1326 if (idx<0){
1327 if (g_debugMode){
1328 if (idx==-1){
1329 PrintAndLog("DEBUG: Error - IO prox just noise detected");
1330 } else if (idx == -2) {
1331 PrintAndLog("DEBUG: Error - IO prox not enough samples");
1332 } else if (idx == -3) {
1333 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
1334 } else if (idx == -4) {
1335 PrintAndLog("DEBUG: Error - IO prox preamble not found");
1336 } else if (idx == -5) {
1337 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
1338 } else {
1339 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
1340 }
1341 }
1342 return retval;
1343 }
1344 if (idx==0){
1345 if (g_debugMode){
1346 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
1347 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
1348 }
1349 return retval;
1350 }
1351 //Index map
1352 //0 10 20 30 40 50 60
1353 //| | | | | | |
1354 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1355 //-----------------------------------------------------------------------------
1356 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1357 //
1358 //XSF(version)facility:codeone+codetwo (raw)
1359 //Handle the data
1360 if (idx + 64 > bitlen) {
1361 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
1362 return retval;
1363 }
1364
1365 if (g_debugMode) {
1366 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]);
1367 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]);
1368 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]);
1369 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]);
1370 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]);
1371 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]);
1372 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]);
1373 }
1374
1375 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1376 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1377 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1378 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1379 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1380 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1381 uint16_t calccrc = 0;
1382
1383 for (uint8_t i = 1; i < 6; ++i){
1384 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
1385 }
1386 calccrc &= 0xff;
1387 calccrc = 0xff - calccrc;
1388
1389 if (crc == calccrc) {
1390 snprintf(crcStr, 3, "ok");
1391 retval = 1;
1392 } else {
1393 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
1394
1395 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1396 retval = 0;
1397 }
1398
1399 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
1400 setDemodBuf(BitStream,64,idx);
1401 if (g_debugMode){
1402 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
1403 printDemodBuff();
1404 }
1405 return retval;
1406 }
1407
1408 //by marshmellow
1409 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1410 //print full AWID Prox ID and some bit format details if found
1411 int CmdFSKdemodAWID(const char *Cmd)
1412 {
1413 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1414 size_t size = getFromGraphBuf(BitStream);
1415 if (size==0) return 0;
1416
1417 //get binary from fsk wave
1418 int idx = AWIDdemodFSK(BitStream, &size);
1419 if (idx<=0){
1420 if (g_debugMode){
1421 if (idx == -1)
1422 PrintAndLog("DEBUG: Error - AWID not enough samples");
1423 else if (idx == -2)
1424 PrintAndLog("DEBUG: Error - AWID only noise found");
1425 else if (idx == -3)
1426 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
1427 else if (idx == -4)
1428 PrintAndLog("DEBUG: Error - AWID preamble not found");
1429 else if (idx == -5)
1430 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
1431 else
1432 PrintAndLog("DEBUG: Error - AWID error %d",idx);
1433 }
1434 return 0;
1435 }
1436
1437 // Index map
1438 // 0 10 20 30 40 50 60
1439 // | | | | | | |
1440 // 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
1441 // -----------------------------------------------------------------------------
1442 // 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
1443 // 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
1444 // |---26 bit---| |-----117----||-------------142-------------|
1445 // b = format bit len, o = odd parity of last 3 bits
1446 // f = facility code, c = card number
1447 // w = wiegand parity
1448 // (26 bit format shown)
1449
1450 //get raw ID before removing parities
1451 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1452 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1453 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1454 setDemodBuf(BitStream,96,idx);
1455
1456 size = removeParity(BitStream, idx+8, 4, 1, 88);
1457 if (size != 66){
1458 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
1459 return 0;
1460 }
1461 // ok valid card found!
1462
1463 // Index map
1464 // 0 10 20 30 40 50 60
1465 // | | | | | | |
1466 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1467 // -----------------------------------------------------------------------------
1468 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1469 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1470 // |26 bit| |-117--| |-----142------|
1471 //
1472 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1473 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1474 // |50 bit| |----4000------| |-----------2248975------------|
1475 // b = format bit len, o = odd parity of last 3 bits
1476 // f = facility code, c = card number
1477 // w = wiegand parity
1478
1479 uint32_t fc = 0;
1480 uint32_t cardnum = 0;
1481 uint32_t code1 = 0;
1482 uint32_t code2 = 0;
1483 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
1484
1485 switch(fmtLen) {
1486 case 26:
1487 fc = bytebits_to_byte(BitStream + 9, 8);
1488 cardnum = bytebits_to_byte(BitStream + 17, 16);
1489 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
1490 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1491 break;
1492 case 34:
1493 fc = bytebits_to_byte(BitStream + 9, 8);
1494 cardnum = bytebits_to_byte(BitStream + 17, 24);
1495 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1496 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1497 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1498 break;
1499 case 37:
1500 fc = bytebits_to_byte(BitStream + 9, 13);
1501 cardnum = bytebits_to_byte(BitStream + 22, 18);
1502 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1503 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1504 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1505 break;
1506 // case 40:
1507 // break;
1508 case 50:
1509 fc = bytebits_to_byte(BitStream + 9, 16);
1510 cardnum = bytebits_to_byte(BitStream + 25, 32);
1511 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1512 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1513 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1514 break;
1515 default:
1516 if (fmtLen > 32 ) {
1517 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1518 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1519 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1520 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1521 } else {
1522 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1523 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1524 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1525 }
1526 break;
1527 }
1528
1529 if (g_debugMode){
1530 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1531 printDemodBuff();
1532 }
1533 return 1;
1534 }
1535
1536 //by marshmellow
1537 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1538 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1539 int CmdFSKdemodPyramid(const char *Cmd)
1540 {
1541 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1542 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1543 size_t size = getFromGraphBuf(BitStream);
1544 if (size==0) return 0;
1545
1546 //get binary from fsk wave
1547 int idx = PyramiddemodFSK(BitStream, &size);
1548 if (idx < 0){
1549 if (g_debugMode){
1550 if (idx == -5)
1551 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
1552 else if (idx == -1)
1553 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
1554 else if (idx == -2)
1555 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
1556 else if (idx == -3)
1557 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
1558 else if (idx == -4)
1559 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
1560 else
1561 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
1562 }
1563 return 0;
1564 }
1565 // Index map
1566 // 0 10 20 30 40 50 60
1567 // | | | | | | |
1568 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1569 // -----------------------------------------------------------------------------
1570 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1571 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1572
1573 // 64 70 80 90 100 110 120
1574 // | | | | | | |
1575 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1576 // -----------------------------------------------------------------------------
1577 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1578 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1579 // |---115---||---------71---------|
1580 // s = format start bit, o = odd parity of last 7 bits
1581 // f = facility code, c = card number
1582 // w = wiegand parity, x = extra space for other formats
1583 // p = CRC8maxim checksum
1584 // (26 bit format shown)
1585
1586 //get bytes for checksum calc
1587 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1588 uint8_t csBuff[14] = {0x00};
1589 for (uint8_t i = 0; i < 13; i++){
1590 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1591 }
1592 //check checksum calc
1593 //checksum calc thanks to ICEMAN!!
1594 uint32_t checkCS = CRC8Maxim(csBuff, 13);
1595
1596 //get raw ID before removing parities
1597 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1598 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1599 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1600 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1601 setDemodBuf(BitStream, 128, idx);
1602
1603 size = removeParity(BitStream, idx+8, 8, 1, 120);
1604 if (size != 105){
1605 if (g_debugMode) {
1606 if ( size == 0)
1607 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1608 else
1609 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1610 }
1611 return 0;
1612 }
1613
1614 // ok valid card found!
1615
1616 // Index map
1617 // 0 10 20 30 40 50 60 70
1618 // | | | | | | | |
1619 // 01234567890123456789012345678901234567890123456789012345678901234567890
1620 // -----------------------------------------------------------------------
1621 // 00000000000000000000000000000000000000000000000000000000000000000000000
1622 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1623
1624 // 71 80 90 100
1625 // | | | |
1626 // 1 2 34567890 1234567890123456 7 8901234
1627 // ---------------------------------------
1628 // 1 1 01110011 0000000001000110 0 1001010
1629 // s w ffffffff cccccccccccccccc w ppppppp
1630 // |--115-| |------71------|
1631 // s = format start bit, o = odd parity of last 7 bits
1632 // f = facility code, c = card number
1633 // w = wiegand parity, x = extra space for other formats
1634 // p = CRC8-Maxim checksum
1635 // (26 bit format shown)
1636
1637 //find start bit to get fmtLen
1638 int j;
1639 for (j=0; j < size; ++j){
1640 if(BitStream[j]) break;
1641 }
1642
1643 uint8_t fmtLen = size-j-8;
1644 uint32_t fc = 0;
1645 uint32_t cardnum = 0;
1646 uint32_t code1 = 0;
1647
1648 if ( fmtLen == 26 ){
1649 fc = bytebits_to_byte(BitStream+73, 8);
1650 cardnum = bytebits_to_byte(BitStream+81, 16);
1651 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1652 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);
1653 } else if (fmtLen == 45) {
1654 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
1655 fc = bytebits_to_byte(BitStream+53, 10);
1656 cardnum = bytebits_to_byte(BitStream+63, 32);
1657 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1658 } else {
1659 cardnum = bytebits_to_byte(BitStream+81, 16);
1660 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1661 }
1662 if (checksum == checkCS)
1663 PrintAndLog("Checksum %02x passed", checksum);
1664 else
1665 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1666
1667 if (g_debugMode){
1668 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1669 printDemodBuff();
1670 }
1671 return 1;
1672 }
1673
1674 // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
1675 // 8 databits + 1 parity (1)
1676 // CIITT 16 chksum
1677 // NATIONAL CODE, ICAR database
1678 // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
1679 // FLAG (animal/non-animal)
1680 /*
1681 38 IDbits
1682 10 country code
1683 1 extra app bit
1684 14 reserved bits
1685 1 animal bit
1686 16 ccitt CRC chksum over 64bit ID CODE.
1687 24 appli bits.
1688
1689 -- sample: 985121004515220 [ 37FF65B88EF94 ]
1690 */
1691 int CmdFDXBdemodBI(const char *Cmd){
1692
1693 int invert = 1;
1694 int clk = 32;
1695 int errCnt = 0;
1696 int maxErr = 0;
1697 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1698 size_t size = getFromGraphBuf(BitStream);
1699
1700 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1701 if ( errCnt < 0 || errCnt > maxErr ) {
1702 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
1703 return 0;
1704 }
1705
1706 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1707 if (errCnt < 0 || errCnt > maxErr ) {
1708 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
1709 return 0;
1710 }
1711
1712 int preambleIndex = FDXBdemodBI(BitStream, &size);
1713 if (preambleIndex < 0){
1714 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
1715 return 0;
1716 }
1717 if (size != 128) {
1718 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
1719 return 0;
1720 }
1721
1722 setDemodBuf(BitStream, 128, preambleIndex);
1723
1724 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
1725 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
1726 if ( size != 104 ) {
1727 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
1728 return 0;
1729 }
1730 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
1731
1732 //got a good demod
1733 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1734 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1735 uint8_t dataBlockBit = BitStream[48];
1736 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1737 uint8_t animalBit = BitStream[63];
1738 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1739 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1740
1741 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
1742 uint8_t raw[8];
1743 num_to_bytes(rawid, 8, raw);
1744
1745 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1746
1747 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1748 PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
1749 PrintAndLog("National Code: %012" PRIu64, NationalCode);
1750 PrintAndLog("CountryCode: %04u", countryCode);
1751
1752 PrintAndLog("Reserved/RFU: %u", reservedCode);
1753 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1754 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
1755 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1756
1757 if (g_debugMode) {
1758 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1759 char *bin = sprint_bin_break(BitStream,size,16);
1760 PrintAndLog("DEBUG BinStream:\n%s",bin);
1761 }
1762 return 1;
1763 }
1764
1765
1766 //by marshmellow
1767 //attempt to psk1 demod graph buffer
1768 int PSKDemod(const char *Cmd, bool verbose)
1769 {
1770 int invert = 0, clk = 0, maxErr = 100;
1771 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1772 if (clk==1){
1773 invert=1;
1774 clk=0;
1775 }
1776 if (invert != 0 && invert != 1) {
1777 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
1778 return 0;
1779 }
1780 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
1781 size_t BitLen = getFromGraphBuf(BitStream);
1782 if (BitLen==0) return 0;
1783
1784 uint8_t carrier = countFC(BitStream, BitLen, 0);
1785 if (carrier!=2 && carrier!=4 && carrier!=8){
1786 //invalid carrier
1787 return 0;
1788 }
1789
1790 if (g_debugMode) PrintAndLog("Carrier: rf/%d",carrier);
1791
1792 int errCnt=0;
1793 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1794 if (errCnt > maxErr){
1795 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1796 return 0;
1797 }
1798 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1799 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
1800 return 0;
1801 }
1802 if (verbose || g_debugMode){
1803 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
1804 if (errCnt>0){
1805 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1806 }
1807 }
1808 //prime demod buffer for output
1809 setDemodBuf(BitStream, BitLen, 0);
1810 return 1;
1811 }
1812
1813 // Indala 26 bit decode
1814 // by marshmellow
1815 // optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1816 int CmdIndalaDecode(const char *Cmd)
1817 {
1818 int ans;
1819 if (strlen(Cmd)>0){
1820 ans = PSKDemod(Cmd, 0);
1821 } else{ //default to RF/32
1822 ans = PSKDemod("32", 0);
1823 }
1824
1825 if (!ans){
1826 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
1827 return 0;
1828 }
1829
1830 uint8_t invert = 0;
1831 size_t size = DemodBufferLen;
1832 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1833 if (startIdx < 0 || size > 224) {
1834 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
1835 return -1;
1836 }
1837 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
1838 if (invert)
1839 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
1840
1841 //convert UID to HEX
1842 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1843 uid1 = bytebits_to_byte(DemodBuffer,32);
1844 uid2 = bytebits_to_byte(DemodBuffer+32,32);
1845 if (DemodBufferLen==64){
1846 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1847 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1848 );
1849 } else {
1850 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1851 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1852 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1853 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1854 uid7 = bytebits_to_byte(DemodBuffer+192,32);
1855 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1856 DemodBufferLen,
1857 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1858 );
1859 }
1860 if (g_debugMode){
1861 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
1862 printDemodBuff();
1863 }
1864 return 1;
1865 }
1866
1867 int CmdPSKNexWatch(const char *Cmd)
1868 {
1869 if (!PSKDemod("", false)) return 0;
1870
1871 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};
1872 size_t startIdx = 0, size = DemodBufferLen;
1873
1874 // sanity check.
1875 if ( size < sizeof(preamble) + 100) return 0;
1876
1877 bool invert = false;
1878 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1879 // if didn't find preamble try again inverting
1880 if (!PSKDemod("1", false)) return 0;
1881
1882 size = DemodBufferLen;
1883 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1884 invert = true;
1885 }
1886 if (size != 128) return 0;
1887 setDemodBuf(DemodBuffer, size, startIdx+4);
1888 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1889 //get ID
1890 uint32_t ID = 0;
1891 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1892 for (uint8_t idx=0; idx<8; idx++){
1893 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1894 }
1895 }
1896 //parity check (TBD)
1897
1898 //checksum check (TBD)
1899
1900 //output
1901 PrintAndLog("NexWatch ID: %d", ID);
1902 if (invert){
1903 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
1904 for (uint8_t idx=0; idx<size; idx++)
1905 DemodBuffer[idx] ^= 1;
1906 }
1907
1908 CmdPrintDemodBuff("x");
1909 return 1;
1910 }
1911
1912 int CmdPSKIdteck(const char *Cmd) {
1913
1914 if (!PSKDemod("", false)) {
1915 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1916 return 0;
1917 }
1918 size_t size = DemodBufferLen;
1919
1920 //get binary from PSK1 wave
1921 int idx = IdteckDemodPSK(DemodBuffer, &size);
1922 if (idx < 0){
1923 if (g_debugMode){
1924 if (idx == -1)
1925 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1926 else if (idx == -2)
1927 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1928 else if (idx == -3)
1929 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1930 else
1931 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1932 }
1933
1934 // if didn't find preamble try again inverting
1935 if (!PSKDemod("1", false)) {
1936 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1937 return 0;
1938 }
1939 idx = IdteckDemodPSK(DemodBuffer, &size);
1940 if (idx < 0){
1941 if (g_debugMode){
1942 if (idx == -1)
1943 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1944 else if (idx == -2)
1945 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1946 else if (idx == -3)
1947 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1948 else
1949 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1950 }
1951 return 0;
1952 }
1953 }
1954 setDemodBuf(DemodBuffer, 64, idx);
1955
1956 //got a good demod
1957 uint32_t id = 0;
1958 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1959 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1960
1961 //parity check (TBD)
1962 //checksum check (TBD)
1963
1964 //output
1965 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1966 return 1;
1967 }
1968
1969 // by marshmellow
1970 // takes 3 arguments - clock, invert, maxErr as integers
1971 // attempts to demodulate nrz only
1972 // prints binary found and saves in demodbuffer for further commands
1973 int NRZrawDemod(const char *Cmd, bool verbose)
1974 {
1975 int invert=0;
1976 int clk=0;
1977 int maxErr=100;
1978 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1979 if (clk==1){
1980 invert=1;
1981 clk=0;
1982 }
1983 if (invert != 0 && invert != 1) {
1984 PrintAndLog("Invalid argument: %s", Cmd);
1985 return 0;
1986 }
1987 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1988 size_t BitLen = getFromGraphBuf(BitStream);
1989 if (BitLen==0) return 0;
1990 int errCnt=0;
1991 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
1992 if (errCnt > maxErr){
1993 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1994 return 0;
1995 }
1996 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
1997 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1998 return 0;
1999 }
2000 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
2001 //prime demod buffer for output
2002 setDemodBuf(BitStream,BitLen,0);
2003
2004 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
2005 if (verbose || g_debugMode) {
2006 PrintAndLog("NRZ demoded bitstream:");
2007 // Now output the bitstream to the scrollback by line of 16 bits
2008 printDemodBuff();
2009 }
2010 return 1;
2011 }
2012
2013 int CmdNRZrawDemod(const char *Cmd)
2014 {
2015 char cmdp = param_getchar(Cmd, 0);
2016 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
2017
2018 return NRZrawDemod(Cmd, TRUE);
2019 }
2020
2021 // by marshmellow
2022 // takes 3 arguments - clock, invert, maxErr as integers
2023 // attempts to demodulate psk only
2024 // prints binary found and saves in demodbuffer for further commands
2025 int CmdPSK1rawDemod(const char *Cmd)
2026 {
2027 int ans;
2028 char cmdp = param_getchar(Cmd, 0);
2029 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
2030
2031 ans = PSKDemod(Cmd, TRUE);
2032 //output
2033 if (!ans){
2034 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2035 return 0;
2036 }
2037 PrintAndLog("PSK1 demoded bitstream:");
2038 // Now output the bitstream to the scrollback by line of 16 bits
2039 printDemodBuff();
2040 return 1;
2041 }
2042
2043 // by marshmellow
2044 // takes same args as cmdpsk1rawdemod
2045 int CmdPSK2rawDemod(const char *Cmd)
2046 {
2047 int ans = 0;
2048 char cmdp = param_getchar(Cmd, 0);
2049 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
2050
2051 ans = PSKDemod(Cmd, TRUE);
2052 if (!ans){
2053 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2054 return 0;
2055 }
2056 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2057 PrintAndLog("PSK2 demoded bitstream:");
2058 // Now output the bitstream to the scrollback by line of 16 bits
2059 printDemodBuff();
2060 return 1;
2061 }
2062
2063 // by marshmellow - combines all raw demod functions into one menu command
2064 int CmdRawDemod(const char *Cmd)
2065 {
2066 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
2067 char cmdp2 = Cmd[1];
2068 int ans = 0;
2069
2070 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
2071 return usage_data_rawdemod();
2072
2073 if (cmdp == 'f' && cmdp2 == 's')
2074 ans = CmdFSKrawdemod(Cmd+2);
2075 else if(cmdp == 'a' && cmdp2 == 'b')
2076 ans = Cmdaskbiphdemod(Cmd+2);
2077 else if(cmdp == 'a' && cmdp2 == 'm')
2078 ans = Cmdaskmandemod(Cmd+2);
2079 else if(cmdp == 'a' && cmdp2 == 'r')
2080 ans = Cmdaskrawdemod(Cmd+2);
2081 else if(cmdp == 'n' && cmdp2 == 'r')
2082 ans = CmdNRZrawDemod(Cmd+2);
2083 else if(cmdp == 'p' && cmdp2 == '1')
2084 ans = CmdPSK1rawDemod(Cmd+2);
2085 else if(cmdp == 'p' && cmdp2 == '2')
2086 ans = CmdPSK2rawDemod(Cmd+2);
2087 else
2088 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
2089
2090 return ans;
2091 }
2092 //iceman: diff sizes on the plotwindow?
2093 int CmdGrid(const char *Cmd)
2094 {
2095 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
2096 PlotGridXdefault = PlotGridX;
2097 PlotGridYdefault = PlotGridY;
2098 RepaintGraphWindow();
2099 return 0;
2100 }
2101 void setGrid_Clock(uint8_t clock){
2102 PlotGridXdefault = clock;
2103 RepaintGraphWindow();
2104 }
2105
2106 int CmdSetGraphMarkers(const char *Cmd) {
2107 sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
2108 RepaintGraphWindow();
2109 return 0;
2110 }
2111
2112 int CmdHexsamples(const char *Cmd)
2113 {
2114 int i, j;
2115 int requested = 0;
2116 int offset = 0;
2117 char string_buf[25];
2118 char* string_ptr = string_buf;
2119 uint8_t got[BIGBUF_SIZE];
2120
2121 sscanf(Cmd, "%i %i", &requested, &offset);
2122
2123 /* if no args send something */
2124 if (requested == 0) {
2125 requested = 8;
2126 }
2127 if (offset + requested > sizeof(got)) {
2128 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2129 return 0;
2130 }
2131
2132 GetFromBigBuf(got,requested,offset);
2133 WaitForResponse(CMD_ACK,NULL);
2134
2135 i = 0;
2136 for (j = 0; j < requested; j++) {
2137 i++;
2138 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2139 if (i == 8) {
2140 *(string_ptr - 1) = '\0'; // remove the trailing space
2141 PrintAndLog("%s", string_buf);
2142 string_buf[0] = '\0';
2143 string_ptr = string_buf;
2144 i = 0;
2145 }
2146 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2147 *(string_ptr - 1) = '\0';
2148 PrintAndLog("%s", string_buf);
2149 string_buf[0] = '\0';
2150 }
2151 }
2152 return 0;
2153 }
2154
2155 int CmdHide(const char *Cmd)
2156 {
2157 HideGraphWindow();
2158 return 0;
2159 }
2160
2161 //zero mean GraphBuffer
2162 int CmdHpf(const char *Cmd)
2163 {
2164 int i;
2165 int accum = 0;
2166
2167 for (i = 10; i < GraphTraceLen; ++i)
2168 accum += GraphBuffer[i];
2169
2170 accum /= (GraphTraceLen - 10);
2171
2172 for (i = 0; i < GraphTraceLen; ++i)
2173 GraphBuffer[i] -= accum;
2174
2175 RepaintGraphWindow();
2176 return 0;
2177 }
2178
2179 bool _headBit( BitstreamOut *stream)
2180 {
2181 int bytepos = stream->position >> 3; // divide by 8
2182 int bitpos = (stream->position++) & 7; // mask out 00000111
2183 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2184 }
2185
2186 uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2187 {
2188 int i;
2189 uint8_t val = 0;
2190 for(i = 0 ; i < bits_per_sample; i++)
2191 val |= (_headBit(b) << (7-i));
2192
2193 return val;
2194 }
2195
2196 int getSamples(const char *Cmd, bool silent)
2197 {
2198 //If we get all but the last byte in bigbuf,
2199 // we don't have to worry about remaining trash
2200 // in the last byte in case the bits-per-sample
2201 // does not line up on byte boundaries
2202
2203 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2204
2205 int n = strtol(Cmd, NULL, 0);
2206
2207 if ( n == 0 || n > sizeof(got))
2208 n = sizeof(got);
2209
2210 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
2211 GetFromBigBuf(got,n,0);
2212 if (!silent) PrintAndLog("Data fetched");
2213 UsbCommand response;
2214 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2215 PrintAndLog("timeout while waiting for reply.");
2216 return 1;
2217 }
2218
2219 uint8_t bits_per_sample = 8;
2220
2221 //Old devices without this feature would send 0 at arg[0]
2222 if (response.arg[0] > 0) {
2223 sample_config *sc = (sample_config *) response.d.asBytes;
2224 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
2225 bits_per_sample = sc->bits_per_sample;
2226 }
2227
2228 if (bits_per_sample < 8) {
2229 if (!silent) PrintAndLog("Unpacking...");
2230 BitstreamOut bout = { got, bits_per_sample * n, 0};
2231 int j =0;
2232 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
2233 uint8_t sample = getByte(bits_per_sample, &bout);
2234 GraphBuffer[j] = ((int) sample )- 128;
2235 }
2236 GraphTraceLen = j;
2237 if (!silent) PrintAndLog("Unpacked %d samples" , j );
2238 } else {
2239 for (int j = 0; j < n; j++) {
2240 GraphBuffer[j] = ((int)got[j]) - 128;
2241 }
2242 GraphTraceLen = n;
2243 }
2244
2245 RepaintGraphWindow();
2246 return 0;
2247 }
2248
2249 int CmdSamples(const char *Cmd)
2250 {
2251 return getSamples(Cmd, false);
2252 }
2253
2254 int CmdTuneSamples(const char *Cmd)
2255 {
2256 int timeout = 0;
2257 printf("\nMeasuring antenna characteristics, please wait...");
2258
2259 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2260 clearCommandBuffer();
2261 SendCommand(&c);
2262 UsbCommand resp;
2263 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
2264 timeout++;
2265 printf(".");
2266 fflush(stdout);
2267 if (timeout > 7) {
2268 PrintAndLog("\nNo response from Proxmark. Aborting...");
2269 return 1;
2270 }
2271 }
2272
2273 #define NON_VOLTAGE 999
2274 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2275 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2276 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2277 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2278
2279 int peakv, peakf;
2280 int vLf125, vLf134, vHf;
2281 vLf125 = resp.arg[0] & 0xffff;
2282 vLf134 = resp.arg[0] >> 16;
2283 vHf = resp.arg[1] & 0xffff;;
2284 peakf = resp.arg[2] & 0xffff;
2285 peakv = resp.arg[2] >> 16;
2286 PrintAndLog("");
2287 if ( vLf125 > NON_VOLTAGE )
2288 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2289 if ( vLf134 > NON_VOLTAGE )
2290 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2291 if ( peakv > NON_VOLTAGE && peakf > 0 )
2292 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2293 if ( vHf > NON_VOLTAGE )
2294 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
2295
2296
2297
2298 if (peakv < LF_UNUSABLE_V)
2299 PrintAndLog("# Your LF antenna is unusable.");
2300 else if (peakv < LF_MARGINAL_V)
2301 PrintAndLog("# Your LF antenna is marginal.");
2302 if (vHf < HF_UNUSABLE_V)
2303 PrintAndLog("# Your HF antenna is unusable.");
2304 else if (vHf < HF_MARGINAL_V)
2305 PrintAndLog("# Your HF antenna is marginal.");
2306
2307 if (peakv >= LF_UNUSABLE_V) {
2308 for (int i = 0; i < 256; i++) {
2309 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2310 }
2311 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2312 PrintAndLog("\n");
2313 GraphTraceLen = 256;
2314 ShowGraphWindow();
2315 RepaintGraphWindow();
2316 }
2317 return 0;
2318 }
2319
2320 int CmdLoad(const char *Cmd)
2321 {
2322 char filename[FILE_PATH_SIZE] = {0x00};
2323 int len = 0;
2324
2325 len = strlen(Cmd);
2326 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2327 memcpy(filename, Cmd, len);
2328
2329 FILE *f = fopen(filename, "r");
2330 if (!f) {
2331 PrintAndLog("couldn't open '%s'", filename);
2332 return 0;
2333 }
2334
2335 GraphTraceLen = 0;
2336 char line[80];
2337 while (fgets(line, sizeof (line), f)) {
2338 GraphBuffer[GraphTraceLen] = atoi(line);
2339 GraphTraceLen++;
2340 }
2341 if (f)
2342 fclose(f);
2343
2344 PrintAndLog("loaded %d samples", GraphTraceLen);
2345 RepaintGraphWindow();
2346 return 0;
2347 }
2348
2349 int CmdLtrim(const char *Cmd)
2350 {
2351 int ds = atoi(Cmd);
2352
2353 if (GraphTraceLen <= 0) return 0;
2354
2355 for (int i = ds; i < GraphTraceLen; ++i)
2356 GraphBuffer[i-ds] = GraphBuffer[i];
2357
2358 GraphTraceLen -= ds;
2359 RepaintGraphWindow();
2360 return 0;
2361 }
2362
2363 // trim graph to input argument length
2364 int CmdRtrim(const char *Cmd)
2365 {
2366 int ds = atoi(Cmd);
2367 GraphTraceLen = ds;
2368 RepaintGraphWindow();
2369 return 0;
2370 }
2371
2372 // trim graph (middle) piece
2373 int CmdMtrim(const char *Cmd) {
2374 int start = 0, stop = 0;
2375 sscanf(Cmd, "%i %i", &start, &stop);
2376
2377 if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;
2378 start++; //leave start position sample
2379
2380 GraphTraceLen -= stop - start;
2381 for (int i = 0; i < GraphTraceLen; i++) {
2382 GraphBuffer[start+i] = GraphBuffer[stop+i];
2383 }
2384 return 0;
2385 }
2386
2387
2388 int CmdNorm(const char *Cmd)
2389 {
2390 int i;
2391 int max = INT_MIN, min = INT_MAX;
2392
2393 for (i = 10; i < GraphTraceLen; ++i) {
2394 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2395 if (GraphBuffer[i] < min) min = GraphBuffer[i];
2396 }
2397
2398 if (max != min) {
2399 for (i = 0; i < GraphTraceLen; ++i) {
2400 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2401 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
2402 }
2403 }
2404 RepaintGraphWindow();
2405 return 0;
2406 }
2407
2408 int CmdPlot(const char *Cmd)
2409 {
2410 ShowGraphWindow();
2411 return 0;
2412 }
2413
2414 int CmdSave(const char *Cmd)
2415 {
2416 char filename[FILE_PATH_SIZE] = {0x00};
2417 int len = 0;
2418
2419 len = strlen(Cmd);
2420 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2421 memcpy(filename, Cmd, len);
2422
2423 FILE *f = fopen(filename, "w");
2424 if(!f) {
2425 PrintAndLog("couldn't open '%s'", filename);
2426 return 0;
2427 }
2428
2429 for (int i = 0; i < GraphTraceLen; i++)
2430 fprintf(f, "%d\n", GraphBuffer[i]);
2431
2432 if (f)
2433 fclose(f);
2434
2435 PrintAndLog("saved to '%s'", Cmd);
2436 return 0;
2437 }
2438
2439 int CmdScale(const char *Cmd)
2440 {
2441 CursorScaleFactor = atoi(Cmd);
2442 if (CursorScaleFactor == 0) {
2443 PrintAndLog("bad, can't have zero scale");
2444 CursorScaleFactor = 1;
2445 }
2446 RepaintGraphWindow();
2447 return 0;
2448 }
2449
2450 int CmdDirectionalThreshold(const char *Cmd)
2451 {
2452 int8_t upThres = param_get8(Cmd, 0);
2453 int8_t downThres = param_get8(Cmd, 1);
2454
2455 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2456
2457 int lastValue = GraphBuffer[0];
2458 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2459
2460 for (int i = 1; i < GraphTraceLen; ++i) {
2461 // Apply first threshold to samples heading up
2462 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2463 {
2464 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2465 GraphBuffer[i] = 1;
2466 }
2467 // Apply second threshold to samples heading down
2468 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2469 {
2470 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2471 GraphBuffer[i] = -1;
2472 }
2473 else
2474 {
2475 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2476 GraphBuffer[i] = GraphBuffer[i-1];
2477 }
2478 }
2479 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2480 RepaintGraphWindow();
2481 return 0;
2482 }
2483
2484 int CmdZerocrossings(const char *Cmd)
2485 {
2486 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2487 CmdHpf("");
2488
2489 int sign = 1;
2490 int zc = 0;
2491 int lastZc = 0;
2492
2493 for (int i = 0; i < GraphTraceLen; ++i) {
2494 if (GraphBuffer[i] * sign >= 0) {
2495 // No change in sign, reproduce the previous sample count.
2496 zc++;
2497 GraphBuffer[i] = lastZc;
2498 } else {
2499 // Change in sign, reset the sample count.
2500 sign = -sign;
2501 GraphBuffer[i] = lastZc;
2502 if (sign > 0) {
2503 lastZc = zc;
2504 zc = 0;
2505 }
2506 }
2507 }
2508
2509 RepaintGraphWindow();
2510 return 0;
2511 }
2512
2513 /**
2514 * @brief Utility for conversion via cmdline.
2515 * @param Cmd
2516 * @return
2517 */
2518 int Cmdbin2hex(const char *Cmd)
2519 {
2520 int bg =0, en =0;
2521 if(param_getptr(Cmd, &bg, &en, 0))
2522 return usage_data_bin2hex();
2523
2524 //Number of digits supplied as argument
2525 size_t length = en - bg +1;
2526 size_t bytelen = (length+7) / 8;
2527 uint8_t* arr = (uint8_t *) malloc(bytelen);
2528 memset(arr, 0, bytelen);
2529 BitstreamOut bout = { arr, 0, 0 };
2530
2531 for (; bg <= en ;bg++) {
2532 char c = Cmd[bg];
2533 if( c == '1') pushBit(&bout, 1);
2534 else if( c == '0') pushBit(&bout, 0);
2535 else PrintAndLog("Ignoring '%c'", c);
2536 }
2537
2538 if (bout.numbits % 8 != 0)
2539 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2540
2541 //Uses printf instead of PrintAndLog since the latter
2542 // adds linebreaks to each printout - this way was more convenient since we don't have to
2543 // allocate a string and write to that first...
2544 for(size_t x = 0; x < bytelen ; x++)
2545 printf("%02X", arr[x]);
2546
2547 printf("\n");
2548 free(arr);
2549 return 0;
2550 }
2551
2552 int Cmdhex2bin(const char *Cmd)
2553 {
2554 int bg =0, en =0;
2555 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
2556
2557 while (bg <= en ) {
2558 char x = Cmd[bg++];
2559 // capitalize
2560 if (x >= 'a' && x <= 'f')
2561 x -= 32;
2562 // convert to numeric value
2563 if (x >= '0' && x <= '9')
2564 x -= '0';
2565 else if (x >= 'A' && x <= 'F')
2566 x -= 'A' - 10;
2567 else
2568 continue;
2569
2570 //Uses printf instead of PrintAndLog since the latter
2571 // adds linebreaks to each printout - this way was more convenient since we don't have to
2572 // allocate a string and write to that first...
2573
2574 for(int i= 0 ; i < 4 ; ++i)
2575 printf("%d",(x >> (3 - i)) & 1);
2576 }
2577 printf("\n");
2578
2579 return 0;
2580 }
2581
2582 int CmdDataIIR(const char *Cmd){
2583 uint8_t k = param_get8(Cmd,0);
2584 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2585 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
2586 RepaintGraphWindow();
2587 return 0;
2588 }
2589
2590 static command_t CommandTable[] =
2591 {
2592 {"help", CmdHelp, 1, "This help"},
2593 {"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)"},
2594 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2595 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
2596 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
2597 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
2598 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
2599 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
2600 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
2601 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
2602 {"dec", CmdDec, 1, "Decimate samples"},
2603 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
2604 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
2605 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2606 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2607 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2608 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2609 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2610 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2611 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2612 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2613 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
2614 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
2615 {"hide", CmdHide, 1, "Hide graph window"},
2616 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2617 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2618 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2619 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
2620 {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
2621 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
2622 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2623 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
2624 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
2625 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
2626 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
2627 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2628 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2629 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2630 {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
2631 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
2632 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
2633 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
2634 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2635 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2636 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2637 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2638 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
2639 {NULL, NULL, 0, NULL}
2640 };
2641
2642 int CmdData(const char *Cmd){
2643 clearCommandBuffer();
2644 CmdsParse(CommandTable, Cmd);
2645 return 0;
2646 }
2647
2648 int CmdHelp(const char *Cmd)
2649 {
2650 CmdsHelp(CommandTable);
2651 return 0;
2652 }
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