Add Viking demod,
[proxmark3-svn] / client / cmddata.c
CommitLineData
a553f267 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
7fe9b0b7 11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <limits.h>
902cb3c0 15#include "proxmark3.h"
7fe9b0b7 16#include "data.h"
17#include "ui.h"
18#include "graph.h"
19#include "cmdparser.h"
d51b2eda 20#include "util.h"
7fe9b0b7 21#include "cmdmain.h"
22#include "cmddata.h"
7db5f1ca 23#include "lfdemod.h"
31abe49f 24#include "usb_cmd.h"
73d04bb4 25#include "crc.h"
6eaa8da9 26#include "crc16.h"
f6821167 27#include "loclass/cipherutils.h"
31abe49f 28
4118b74d 29uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
b362de62 30uint8_t g_debugMode=0;
31size_t DemodBufferLen=0;
7fe9b0b7 32static int CmdHelp(const char *Cmd);
33
4118b74d 34//set the demod buffer with given array of binary (one bit per byte)
35//by marshmellow
ec75f5c1 36void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
4118b74d 37{
13d77ef9 38 if (buff == NULL)
39 return;
40
41 if ( size >= MAX_DEMOD_BUF_LEN)
42 size = MAX_DEMOD_BUF_LEN;
43
ec75f5c1 44 size_t i = 0;
8e2e6c8e 45 for (; i < size; i++){
ec75f5c1 46 DemodBuffer[i]=buff[startIdx++];
ba1a299c 47 }
48 DemodBufferLen=size;
49 return;
4118b74d 50}
51
ec75f5c1 52int CmdSetDebugMode(const char *Cmd)
53{
e0165dcf 54 int demod=0;
55 sscanf(Cmd, "%i", &demod);
56 g_debugMode=(uint8_t)demod;
57 return 1;
ec75f5c1 58}
59
979bba37 60int usage_data_printdemodbuf(){
61 PrintAndLog("Usage: data printdemodbuffer x o <offset>");
62 PrintAndLog("Options: ");
63 PrintAndLog(" h This help");
64 PrintAndLog(" x output in hex (omit for binary output)");
65 PrintAndLog(" o <offset> enter offset in # of bits");
66 return 0;
67}
68
4118b74d 69//by marshmellow
abd6112f 70void printDemodBuff(void)
4118b74d 71{
ba1a299c 72 int bitLen = DemodBufferLen;
2767fc02 73 if (bitLen<1) {
ba1a299c 74 PrintAndLog("no bits found in demod buffer");
75 return;
76 }
77 if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
e0165dcf 78
2767fc02 79 char *bin = sprint_bin_break(DemodBuffer,bitLen,16);
80 PrintAndLog("%s",bin);
81
ba1a299c 82 return;
4118b74d 83}
84
8d960002 85int CmdPrintDemodBuff(const char *Cmd)
86{
979bba37 87 char hex[512]={0x00};
88 bool hexMode = false;
89 bool errors = false;
90 uint8_t offset = 0;
91 char cmdp = 0;
92 while(param_getchar(Cmd, cmdp) != 0x00)
93 {
94 switch(param_getchar(Cmd, cmdp))
95 {
96 case 'h':
97 case 'H':
98 return usage_data_printdemodbuf();
99 case 'x':
100 case 'X':
101 hexMode = true;
102 cmdp++;
103 break;
104 case 'o':
105 case 'O':
106 offset = param_get8(Cmd, cmdp+1);
107 if (!offset) errors = true;
108 cmdp += 2;
109 break;
110 default:
111 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
112 errors = true;
113 break;
114 }
115 if(errors) break;
e0165dcf 116 }
979bba37 117 //Validations
118 if(errors) return usage_data_printdemodbuf();
119
120 int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string
121
122 if (hexMode){
185e038c 123 char *buf = (char *) (DemodBuffer + offset);
979bba37 124 numBits = binarraytohex(hex, buf, numBits);
e0165dcf 125 if (numBits==0) return 0;
979bba37 126 PrintAndLog("DemodBuffer: %s",hex);
e0165dcf 127 } else {
979bba37 128 //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset);
129 char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16);
130 PrintAndLog("DemodBuffer:\n%s",bin);
e0165dcf 131 }
132 return 1;
8d960002 133}
7fe9b0b7 134
2767fc02 135//by marshmellow
78f5b1a7 136//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
137int CmdGetBitStream(const char *Cmd)
138{
e0165dcf 139 int i;
140 CmdHpf(Cmd);
141 for (i = 0; i < GraphTraceLen; i++) {
142 if (GraphBuffer[i] >= 1) {
143 GraphBuffer[i] = 1;
144 } else {
145 GraphBuffer[i] = 0;
146 }
147 }
148 RepaintGraphWindow();
149 return 0;
78f5b1a7 150}
151
d5a72d2f 152//by marshmellow
abd6112f 153//print 64 bit EM410x ID in multiple formats
b41534d1 154void printEM410x(uint32_t hi, uint64_t id)
2fc2150e 155{
e0165dcf 156 if (id || hi){
157 uint64_t iii=1;
158 uint64_t id2lo=0;
159 uint32_t ii=0;
160 uint32_t i=0;
161 for (ii=5; ii>0;ii--){
162 for (i=0;i<8;i++){
163 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
164 }
165 }
166 if (hi){
167 //output 88 bit em id
2767fc02 168 PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id);
e0165dcf 169 } else{
170 //output 40 bit em id
2767fc02 171 PrintAndLog("\nEM TAG ID : %010llX", id);
172 PrintAndLog("Unique TAG ID : %010llX", id2lo);
e0165dcf 173 PrintAndLog("\nPossible de-scramble patterns");
174 PrintAndLog("HoneyWell IdentKey {");
175 PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
176 PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF);
177 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
178 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
179 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF));
180 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF));
181 PrintAndLog("DEZ 14/IK2 : %014lld",id);
182 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
183 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
184 (id2lo & 0xf000000000) >> 36,
185 (id2lo & 0x0f00000000) >> 32,
186 (id2lo & 0x00f0000000) >> 28,
187 (id2lo & 0x000f000000) >> 24,
188 (id2lo & 0x0000f00000) >> 20,
189 (id2lo & 0x00000f0000) >> 16,
190 (id2lo & 0x000000f000) >> 12,
191 (id2lo & 0x0000000f00) >> 8,
192 (id2lo & 0x00000000f0) >> 4,
193 (id2lo & 0x000000000f)
194 );
195 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
196 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
2767fc02 197 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton);
e0165dcf 198
199 uint32_t p1id = (id & 0xFFFFFF);
200 uint8_t arr[32] = {0x00};
201 int i =0;
202 int j = 23;
203 for (; i < 24; ++i, --j ){
204 arr[i] = (p1id >> i) & 1;
205 }
206
207 uint32_t p1 = 0;
208
209 p1 |= arr[23] << 21;
210 p1 |= arr[22] << 23;
211 p1 |= arr[21] << 20;
212 p1 |= arr[20] << 22;
213
214 p1 |= arr[19] << 18;
215 p1 |= arr[18] << 16;
216 p1 |= arr[17] << 19;
217 p1 |= arr[16] << 17;
218
219 p1 |= arr[15] << 13;
220 p1 |= arr[14] << 15;
221 p1 |= arr[13] << 12;
222 p1 |= arr[12] << 14;
223
224 p1 |= arr[11] << 6;
225 p1 |= arr[10] << 2;
226 p1 |= arr[9] << 7;
227 p1 |= arr[8] << 1;
228
229 p1 |= arr[7] << 0;
230 p1 |= arr[6] << 8;
231 p1 |= arr[5] << 11;
232 p1 |= arr[4] << 3;
233
234 p1 |= arr[3] << 10;
235 p1 |= arr[2] << 4;
236 p1 |= arr[1] << 5;
237 p1 |= arr[0] << 9;
2767fc02 238 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
e0165dcf 239
240 uint16_t sebury1 = id & 0xFFFF;
241 uint8_t sebury2 = (id >> 16) & 0x7F;
242 uint32_t sebury3 = id & 0x7FFFFF;
2767fc02 243 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
e0165dcf 244 }
245 }
246 return;
eb191de6 247}
248
fef74fdc 249int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
13d77ef9 250{
fef74fdc 251 size_t idx = 0;
252 size_t BitLen = DemodBufferLen;
253 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
254 memcpy(BitStream, DemodBuffer, BitLen);
255 if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){
256 //set GraphBuffer for clone or sim command
257 setDemodBuf(BitStream, BitLen, idx);
e0165dcf 258 if (g_debugMode){
fef74fdc 259 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 260 printDemodBuff();
261 }
fef74fdc 262 if (verbose){
263 PrintAndLog("EM410x pattern found: ");
264 printEM410x(*hi, *lo);
265 }
e0165dcf 266 return 1;
267 }
268 return 0;
13d77ef9 269}
fef74fdc 270
271int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
272{
273 if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
274 return AskEm410xDecode(verbose, hi, lo);
275}
276
e888ed8e 277//by marshmellow
e770c648 278//takes 3 arguments - clock, invert and maxErr as integers
279//attempts to demodulate ask while decoding manchester
280//prints binary found and saves in graphbuffer for further commands
281int CmdAskEM410xDemod(const char *Cmd)
282{
e0165dcf 283 char cmdp = param_getchar(Cmd, 0);
284 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
285 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
286 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
287 PrintAndLog(" <invert>, 1 for invert output");
288 PrintAndLog(" [set maximum allowed errors], default = 100.");
289 PrintAndLog("");
290 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
291 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
292 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
293 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
294 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");
295 return 0;
296 }
e0165dcf 297 uint64_t lo = 0;
fef74fdc 298 uint32_t hi = 0;
299 return AskEm410xDemod(Cmd, &hi, &lo, true);
e770c648 300}
301
fef74fdc 302//by marshmellow
303//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
304// (amp may not be needed anymore)
305//verbose will print results and demoding messages
306//emSearch will auto search for EM410x format in bitstream
307//askType switches decode: ask/raw = 0, ask/manchester = 1
308int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
e888ed8e 309{
e0165dcf 310 int invert=0;
311 int clk=0;
312 int maxErr=100;
fef74fdc 313 int maxLen=0;
314 uint8_t askAmp = 0;
315 char amp = param_getchar(Cmd, 0);
e0165dcf 316 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
fef74fdc 317 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
318 if (!maxLen) maxLen = 512*64;
e0165dcf 319 if (invert != 0 && invert != 1) {
320 PrintAndLog("Invalid argument: %s", Cmd);
321 return 0;
322 }
323 if (clk==1){
324 invert=1;
325 clk=0;
326 }
fef74fdc 327 if (amp == 'a' || amp == 'A') askAmp=1;
e0165dcf 328 size_t BitLen = getFromGraphBuf(BitStream);
2767fc02 329 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
fef74fdc 330 if (BitLen<255) return 0;
23f0a7d8 331 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
fef74fdc 332
333 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
334 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 335 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 336 return 0;
337 }
2767fc02 338 if (errCnt>maxErr){
339 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
340 return 0;
341 }
342 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 343
344 //output
e0165dcf 345 setDemodBuf(BitStream,BitLen,0);
fef74fdc 346 if (verbose || g_debugMode){
347 if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
8e2e6c8e 348 if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
349 else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 350 // Now output the bitstream to the scrollback by line of 16 bits
351 printDemodBuff();
352
353 }
354 uint64_t lo = 0;
355 uint32_t hi = 0;
e0165dcf 356 if (emSearch){
fef74fdc 357 AskEm410xDecode(true, &hi, &lo);
e0165dcf 358 }
359 return 1;
eb191de6 360}
361
4ac906d1 362//by marshmellow
fef74fdc 363//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 364//attempts to demodulate ask while decoding manchester
365//prints binary found and saves in graphbuffer for further commands
366int Cmdaskmandemod(const char *Cmd)
367{
e0165dcf 368 char cmdp = param_getchar(Cmd, 0);
fef74fdc 369 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
370 PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
371 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
372 PrintAndLog(" <invert>, 1 to invert output");
373 PrintAndLog(" [set maximum allowed errors], default = 100");
374 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
375 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
e0165dcf 376 PrintAndLog("");
377 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
378 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
379 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
380 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
381 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");
382 return 0;
383 }
fef74fdc 384 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 385}
386
eb191de6 387//by marshmellow
d5a72d2f 388//manchester decode
eb191de6 389//stricktly take 10 and 01 and convert to 0 and 1
390int Cmdmandecoderaw(const char *Cmd)
391{
e0165dcf 392 int i =0;
393 int errCnt=0;
394 size_t size=0;
fef74fdc 395 int invert=0;
6ac4cb27 396 int maxErr = 20;
e0165dcf 397 char cmdp = param_getchar(Cmd, 0);
1f918317 398 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
fef74fdc 399 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
e0165dcf 400 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
401 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
fef74fdc 402 PrintAndLog(" [invert] invert output");
1f918317 403 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
e0165dcf 404 PrintAndLog("");
405 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
406 return 0;
407 }
408 if (DemodBufferLen==0) return 0;
409 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
410 int high=0,low=0;
411 for (;i<DemodBufferLen;++i){
412 if (DemodBuffer[i]>high) high=DemodBuffer[i];
413 else if(DemodBuffer[i]<low) low=DemodBuffer[i];
414 BitStream[i]=DemodBuffer[i];
415 }
1f918317 416 if (high>7 || low <0 ){
2767fc02 417 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 418 return 0;
419 }
1f918317 420
fef74fdc 421 sscanf(Cmd, "%i %i", &invert, &maxErr);
e0165dcf 422 size=i;
fef74fdc 423 errCnt=manrawdecode(BitStream, &size, invert);
e0165dcf 424 if (errCnt>=maxErr){
425 PrintAndLog("Too many errors: %d",errCnt);
426 return 0;
427 }
428 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 429 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
e0165dcf 430 if (errCnt==0){
431 uint64_t id = 0;
432 uint32_t hi = 0;
433 size_t idx=0;
434 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
435 //need to adjust to set bitstream back to manchester encoded data
436 //setDemodBuf(BitStream, size, idx);
437
438 printEM410x(hi, id);
439 }
440 }
441 return 1;
d5a72d2f 442}
443
444//by marshmellow
445//biphase decode
446//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 447//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
448// and "invert" default = 0 if 1 it will invert output
2767fc02 449// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 450int CmdBiphaseDecodeRaw(const char *Cmd)
451{
ba1a299c 452 size_t size=0;
b41534d1 453 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 454 char cmdp = param_getchar(Cmd, 0);
455 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
b41534d1 456 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
457 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
b4fb11ba 458 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
e0165dcf 459 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
b4fb11ba 460 PrintAndLog("");
461 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
462 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
b41534d1 463 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
b4fb11ba 464 PrintAndLog("");
465 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
466 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
467 return 0;
468 }
b41534d1 469 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
470 if (DemodBufferLen==0){
471 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 472 return 0;
473 }
b41534d1 474 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
475 memcpy(BitStream, DemodBuffer, DemodBufferLen);
476 size = DemodBufferLen;
1e090a61 477 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 478 if (errCnt<0){
479 PrintAndLog("Error during decode:%d", errCnt);
480 return 0;
481 }
482 if (errCnt>maxErr){
b4fb11ba 483 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
484 return 0;
485 }
b41534d1 486
487 if (errCnt>0){
2767fc02 488 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
b41534d1 489 }
490 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 491 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 492
493 if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 494 return 1;
eb191de6 495}
496
b41534d1 497//by marshmellow
498// - ASK Demod then Biphase decode GraphBuffer samples
499int ASKbiphaseDemod(const char *Cmd, bool verbose)
500{
501 //ask raw demod GraphBuffer first
c7d67212 502 int offset=0, clk=0, invert=0, maxErr=0;
503 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
b41534d1 504
8e2e6c8e 505 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
506 size_t size = getFromGraphBuf(BitStream);
fd227f4e 507 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
c7d67212 508 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
8e2e6c8e 509 if ( errCnt < 0 || errCnt > maxErr ) {
510 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
511 return 0;
512 }
513
514 //attempt to Biphase decode BitStream
515 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 516 if (errCnt < 0){
517 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
518 return 0;
519 }
520 if (errCnt > maxErr) {
521 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);
522 return 0;
523 }
524 //success set DemodBuffer and return
525 setDemodBuf(BitStream, size, 0);
526 if (g_debugMode || verbose){
8e2e6c8e 527 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 528 printDemodBuff();
529 }
530 return 1;
531}
532//by marshmellow - see ASKbiphaseDemod
533int Cmdaskbiphdemod(const char *Cmd)
534{
e0165dcf 535 char cmdp = param_getchar(Cmd, 0);
fef74fdc 536 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
537 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
e0165dcf 538 PrintAndLog(" [offset], offset to begin biphase, default=0");
539 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
540 PrintAndLog(" <invert>, 1 to invert output");
541 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 542 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
e0165dcf 543 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
544 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
545 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
546 PrintAndLog(" NOTE: any other arg must have previous args set to work");
547 PrintAndLog("");
548 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
549 PrintAndLog("");
fef74fdc 550 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
551 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
552 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
553 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
554 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
555 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");
556 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");
e0165dcf 557 return 0;
558 }
559 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 560}
561
8d960002 562//by marshmellow
563//attempts to demodulate and identify a G_Prox_II verex/chubb card
564//WARNING: if it fails during some points it will destroy the DemodBuffer data
565// but will leave the GraphBuffer intact.
566//if successful it will push askraw data back to demod buffer ready for emulation
567int CmdG_Prox_II_Demod(const char *Cmd)
568{
e0165dcf 569 if (!ASKbiphaseDemod(Cmd, FALSE)){
570 if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
571 return 0;
572 }
573 size_t size = DemodBufferLen;
574 //call lfdemod.c demod for gProxII
575 int ans = gProxII_Demod(DemodBuffer, &size);
576 if (ans < 0){
577 if (g_debugMode) PrintAndLog("Error gProxII_Demod");
578 return 0;
579 }
580 //got a good demod
581 uint32_t ByteStream[65] = {0x00};
582 uint8_t xorKey=0;
583 uint8_t keyCnt=0;
584 uint8_t bitCnt=0;
585 uint8_t ByteCnt=0;
586 size_t startIdx = ans + 6; //start after preamble
587 for (size_t idx = 0; idx<size-6; idx++){
588 if ((idx+1) % 5 == 0){
589 //spacer bit - should be 0
590 if (DemodBuffer[startIdx+idx] != 0) {
591 if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
592 return 0;
593 }
594 continue;
595 }
596 if (keyCnt<8){ //lsb first
597 xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
598 keyCnt++;
599 if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
600 continue;
601 }
602 //lsb first
603 ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
604 bitCnt++;
605 if (bitCnt % 8 == 0){
606 if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
607 bitCnt=0;
608 ByteCnt++;
609 }
610 }
611 for (uint8_t i = 0; i < ByteCnt; i++){
612 ByteStream[i] ^= xorKey; //xor
613 if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
614 }
615 //now ByteStream contains 64 bytes of decrypted raw tag data
616 //
617 uint8_t fmtLen = ByteStream[0]>>2;
618 uint32_t FC = 0;
619 uint32_t Card = 0;
620 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
621 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
622 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
623
624 if (fmtLen==36){
625 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
626 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
627 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
628 } else if(fmtLen==26){
629 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
630 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
631 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
632 } else {
633 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
634 }
635 PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
636 setDemodBuf(DemodBuffer+ans, 96, 0);
637 return 1;
8d960002 638}
639
415274a7 640//by marshmellow
641//see ASKDemod for what args are accepted
642int CmdVikingDemod(const char *Cmd)
643{
644 if (!ASKDemod(Cmd, false, false, 1)) {
645 if (g_debugMode) PrintAndLog("ASKDemod failed");
646 return 0;
647 }
648 size_t size = DemodBufferLen;
649 //call lfdemod.c demod for gProxII
650 int ans = VikingDemod_AM(DemodBuffer, &size);
651 if (ans < 0) {
652 if (g_debugMode) PrintAndLog("Error Viking_Demod");
653 return 0;
654 }
655 //got a good demod
656 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
657 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
658 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
659 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
660 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
661 PrintAndLog("Raw: %08X%08X", raw1,raw2);
662 setDemodBuf(DemodBuffer+ans, 64, 0);
663 return 1;
664}
665
fef74fdc 666//by marshmellow - see ASKDemod
4ac906d1 667int Cmdaskrawdemod(const char *Cmd)
668{
e0165dcf 669 char cmdp = param_getchar(Cmd, 0);
fef74fdc 670 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
671 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
e0165dcf 672 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
673 PrintAndLog(" <invert>, 1 to invert output");
674 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 675 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
e0165dcf 676 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
677 PrintAndLog("");
fef74fdc 678 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
679 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
680 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
681 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
682 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
683 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");
684 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");
e0165dcf 685 return 0;
686 }
fef74fdc 687 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 688}
689
73d04bb4 690int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 691{
e0165dcf 692 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
693 size_t Correlation = 0;
694 int maxSum = 0;
695 int lastMax = 0;
696 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
697 for (int i = 0; i < GraphTraceLen - window; ++i) {
698 int sum = 0;
699 for (int j = 0; j < window; ++j) {
700 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
701 }
702 CorrelBuffer[i] = sum;
703 if (sum >= maxSum-100 && sum <= maxSum+100){
704 //another max
705 Correlation = i-lastMax;
706 lastMax = i;
707 if (sum > maxSum) maxSum = sum;
708 } else if (sum > maxSum){
709 maxSum=sum;
710 lastMax = i;
711 }
712 }
713 if (Correlation==0){
714 //try again with wider margin
715 for (int i = 0; i < GraphTraceLen - window; i++){
716 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
717 //another max
718 Correlation = i-lastMax;
719 lastMax = i;
720 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
721 }
722 }
723 }
724 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
725
726 if (SaveGrph){
727 GraphTraceLen = GraphTraceLen - window;
728 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
729 RepaintGraphWindow();
730 }
731 return Correlation;
73d04bb4 732}
7fe9b0b7 733
9f7bbd24 734int usage_data_autocorr(void)
735{
e0165dcf 736 //print help
737 PrintAndLog("Usage: data autocorr [window] [g]");
738 PrintAndLog("Options: ");
739 PrintAndLog(" h This help");
740 PrintAndLog(" [window] window length for correlation - default = 4000");
741 PrintAndLog(" g save back to GraphBuffer (overwrite)");
742 return 0;
9f7bbd24 743}
744
73d04bb4 745int CmdAutoCorr(const char *Cmd)
746{
e0165dcf 747 char cmdp = param_getchar(Cmd, 0);
748 if (cmdp == 'h' || cmdp == 'H')
749 return usage_data_autocorr();
750 int window = 4000; //set default
751 char grph=0;
752 bool updateGrph = FALSE;
753 sscanf(Cmd, "%i %c", &window, &grph);
754
755 if (window >= GraphTraceLen) {
756 PrintAndLog("window must be smaller than trace (%d samples)",
757 GraphTraceLen);
758 return 0;
759 }
760 if (grph == 'g') updateGrph=TRUE;
761 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 762}
763
764int CmdBitsamples(const char *Cmd)
765{
e0165dcf 766 int cnt = 0;
767 uint8_t got[12288];
952a8bb5 768
e0165dcf 769 GetFromBigBuf(got,sizeof(got),0);
770 WaitForResponse(CMD_ACK,NULL);
7fe9b0b7 771
e0165dcf 772 for (int j = 0; j < sizeof(got); j++) {
773 for (int k = 0; k < 8; k++) {
774 if(got[j] & (1 << (7 - k))) {
775 GraphBuffer[cnt++] = 1;
776 } else {
777 GraphBuffer[cnt++] = 0;
778 }
779 }
780 }
781 GraphTraceLen = cnt;
782 RepaintGraphWindow();
783 return 0;
7fe9b0b7 784}
785
7fe9b0b7 786int CmdBuffClear(const char *Cmd)
787{
e0165dcf 788 UsbCommand c = {CMD_BUFF_CLEAR};
789 SendCommand(&c);
790 ClearGraph(true);
791 return 0;
7fe9b0b7 792}
793
794int CmdDec(const char *Cmd)
795{
e0165dcf 796 for (int i = 0; i < (GraphTraceLen / 2); ++i)
797 GraphBuffer[i] = GraphBuffer[i * 2];
798 GraphTraceLen /= 2;
799 PrintAndLog("decimated by 2");
800 RepaintGraphWindow();
801 return 0;
7fe9b0b7 802}
698b649e
MHS
803/**
804 * Undecimate - I'd call it 'interpolate', but we'll save that
805 * name until someone does an actual interpolation command, not just
806 * blindly repeating samples
807 * @param Cmd
808 * @return
809 */
810int CmdUndec(const char *Cmd)
811{
c856ceae
MHS
812 if(param_getchar(Cmd, 0) == 'h')
813 {
814 PrintAndLog("Usage: data undec [factor]");
815 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
816 PrintAndLog("Options: ");
817 PrintAndLog(" h This help");
818 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
819 PrintAndLog("Example: 'data undec 3'");
820 return 0;
821 }
822
823 uint8_t factor = param_get8ex(Cmd, 0,2, 10);
698b649e
MHS
824 //We have memory, don't we?
825 int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
c856ceae
MHS
826 uint32_t g_index = 0 ,s_index = 0;
827 while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN)
698b649e 828 {
c856ceae
MHS
829 int count = 0;
830 for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++)
831 swap[s_index+count] = GraphBuffer[g_index];
832 s_index+=count;
698b649e 833 }
698b649e 834
c856ceae
MHS
835 memcpy(GraphBuffer,swap, s_index * sizeof(int));
836 GraphTraceLen = s_index;
837 RepaintGraphWindow();
698b649e
MHS
838 return 0;
839}
7fe9b0b7 840
ec75f5c1 841//by marshmellow
842//shift graph zero up or down based on input + or -
843int CmdGraphShiftZero(const char *Cmd)
844{
845
e0165dcf 846 int shift=0;
847 //set options from parameters entered with the command
848 sscanf(Cmd, "%i", &shift);
849 int shiftedVal=0;
850 for(int i = 0; i<GraphTraceLen; i++){
851 shiftedVal=GraphBuffer[i]+shift;
852 if (shiftedVal>127)
853 shiftedVal=127;
854 else if (shiftedVal<-127)
855 shiftedVal=-127;
856 GraphBuffer[i]= shiftedVal;
857 }
858 CmdNorm("");
859 return 0;
ec75f5c1 860}
861
6de43508 862//by marshmellow
863//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 864//similar to dirtheshold, threshold commands
6de43508 865//takes a threshold length which is the measured length between two samples then determines an edge
866int CmdAskEdgeDetect(const char *Cmd)
867{
e0165dcf 868 int thresLen = 25;
869 sscanf(Cmd, "%i", &thresLen);
49bbc60a 870
e0165dcf 871 for(int i = 1; i<GraphTraceLen; i++){
872 if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
49bbc60a 873 GraphBuffer[i-1] = 127;
e0165dcf 874 else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
49bbc60a 875 GraphBuffer[i-1] = -127;
e0165dcf 876 }
877 RepaintGraphWindow();
e0165dcf 878 return 0;
6de43508 879}
880
7fe9b0b7 881/* Print our clock rate */
ba1a299c 882// uses data from graphbuffer
f3bf15e4 883// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 884int CmdDetectClockRate(const char *Cmd)
885{
f3bf15e4 886 char cmdp = param_getchar(Cmd, 0);
fef74fdc 887 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
888 PrintAndLog("Usage: data detectclock [modulation] <clock>");
f3bf15e4 889 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
fef74fdc 890 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
f3bf15e4 891 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
892 PrintAndLog("");
893 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
894 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
895 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
896 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
897 }
898 int ans=0;
899 if (cmdp == 'a'){
fef74fdc 900 ans = GetAskClock(Cmd+1, true, false);
f3bf15e4 901 } else if (cmdp == 'f'){
902 ans = GetFskClock("", true, false);
903 } else if (cmdp == 'n'){
904 ans = GetNrzClock("", true, false);
905 } else if (cmdp == 'p'){
906 ans = GetPskClock("", true, false);
907 } else {
908 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
909 }
910 return ans;
7fe9b0b7 911}
66707a3b 912
2767fc02 913char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
914{
915 char *fskType;
916 if (fchigh==10 && fclow==8){
917 if (invert) //fsk2a
918 fskType = "FSK2a";
919 else //fsk2
920 fskType = "FSK2";
921 } else if (fchigh == 8 && fclow == 5) {
922 if (invert)
923 fskType = "FSK1";
924 else
925 fskType = "FSK1a";
926 } else {
927 fskType = "FSK??";
928 }
929 return fskType;
930}
931
2fc2150e 932//by marshmellow
eb191de6 933//fsk raw demod and print binary
6de43508 934//takes 4 arguments - Clock, invert, fchigh, fclow
935//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 936int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 937{
e0165dcf 938 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
939 //set defaults
940 int rfLen = 0;
941 int invert = 0;
942 int fchigh = 0;
943 int fclow = 0;
944
945 //set options from parameters entered with the command
946 sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
947
948 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
949 if (rfLen==1){
2eec55c8 950 invert = 1; //if invert option only is used
e0165dcf 951 rfLen = 0;
952 }
953 }
954
955 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
956 size_t BitLen = getFromGraphBuf(BitStream);
957 if (BitLen==0) return 0;
958 //get field clock lengths
959 uint16_t fcs=0;
e0165dcf 960 if (fchigh==0 || fclow == 0){
2eec55c8 961 fcs = countFC(BitStream, BitLen, 1);
e0165dcf 962 if (fcs==0){
963 fchigh=10;
964 fclow=8;
965 }else{
966 fchigh = (fcs >> 8) & 0xFF;
967 fclow = fcs & 0xFF;
968 }
969 }
970 //get bit clock length
971 if (rfLen==0){
972 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
973 if (rfLen == 0) rfLen = 50;
974 }
e0165dcf 975 int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
976 if (size>0){
977 setDemodBuf(BitStream,size,0);
978
979 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 980 if (verbose || g_debugMode) {
981 PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow);
982 PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
983 printDemodBuff();
e0165dcf 984 }
985
986 return 1;
987 } else{
2767fc02 988 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 989 }
990 return 0;
b3b70669 991}
992
4ac906d1 993//by marshmellow
994//fsk raw demod and print binary
995//takes 4 arguments - Clock, invert, fchigh, fclow
996//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
997int CmdFSKrawdemod(const char *Cmd)
998{
e0165dcf 999 char cmdp = param_getchar(Cmd, 0);
1000 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1001 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
1002 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
1003 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
1004 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
1005 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
1006 PrintAndLog("");
1007 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
1008 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
1009 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
1010 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
1011 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
1012 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
1013 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
1014 return 0;
1015 }
1016 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1017}
1018
eb191de6 1019//by marshmellow (based on existing demod + holiman's refactor)
1020//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1021//print full HID Prox ID and some bit format details if found
b3b70669 1022int CmdFSKdemodHID(const char *Cmd)
1023{
e0165dcf 1024 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1025 uint32_t hi2=0, hi=0, lo=0;
1026
1027 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1028 size_t BitLen = getFromGraphBuf(BitStream);
1029 if (BitLen==0) return 0;
1030 //get binary from fsk wave
1031 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1032 if (idx<0){
1033 if (g_debugMode){
1034 if (idx==-1){
1035 PrintAndLog("DEBUG: Just Noise Detected");
1036 } else if (idx == -2) {
1037 PrintAndLog("DEBUG: Error demoding fsk");
1038 } else if (idx == -3) {
1039 PrintAndLog("DEBUG: Preamble not found");
1040 } else if (idx == -4) {
1041 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen);
1042 } else {
1043 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1044 }
1045 }
1046 return 0;
1047 }
1048 if (hi2==0 && hi==0 && lo==0) {
1049 if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
1050 return 0;
1051 }
1052 if (hi2 != 0){ //extra large HID tags
1053 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1054 (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
1055 }
1056 else { //standard HID tags <38 bits
1057 uint8_t fmtLen = 0;
1058 uint32_t fc = 0;
1059 uint32_t cardnum = 0;
1060 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1061 uint32_t lo2=0;
1062 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1063 uint8_t idx3 = 1;
1064 while(lo2>1){ //find last bit set to 1 (format len bit)
1065 lo2=lo2>>1;
1066 idx3++;
1067 }
1068 fmtLen =idx3+19;
1069 fc =0;
1070 cardnum=0;
1071 if(fmtLen==26){
1072 cardnum = (lo>>1)&0xFFFF;
1073 fc = (lo>>17)&0xFF;
1074 }
1075 if(fmtLen==34){
1076 cardnum = (lo>>1)&0xFFFF;
1077 fc= ((hi&1)<<15)|(lo>>17);
1078 }
1079 if(fmtLen==35){
1080 cardnum = (lo>>1)&0xFFFFF;
1081 fc = ((hi&1)<<11)|(lo>>21);
1082 }
1083 }
1084 else { //if bit 38 is not set then 37 bit format is used
1085 fmtLen = 37;
1086 fc = 0;
1087 cardnum = 0;
1088 if(fmtLen == 37){
1089 cardnum = (lo>>1)&0x7FFFF;
1090 fc = ((hi&0xF)<<12)|(lo>>20);
1091 }
1092 }
1093 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1094 (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
1095 (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);
1096 }
1097 setDemodBuf(BitStream,BitLen,idx);
1098 if (g_debugMode){
1099 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1100 printDemodBuff();
1101 }
1102 return 1;
ec75f5c1 1103}
1104
04d2721b 1105//by marshmellow
1106//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1107//print full Paradox Prox ID and some bit format details if found
1108int CmdFSKdemodParadox(const char *Cmd)
1109{
e0165dcf 1110 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1111 uint32_t hi2=0, hi=0, lo=0;
1112
1113 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1114 size_t BitLen = getFromGraphBuf(BitStream);
1115 if (BitLen==0) return 0;
1116 //get binary from fsk wave
1117 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1118 if (idx<0){
1119 if (g_debugMode){
1120 if (idx==-1){
1121 PrintAndLog("DEBUG: Just Noise Detected");
1122 } else if (idx == -2) {
1123 PrintAndLog("DEBUG: Error demoding fsk");
1124 } else if (idx == -3) {
1125 PrintAndLog("DEBUG: Preamble not found");
1126 } else if (idx == -4) {
1127 PrintAndLog("DEBUG: Error in Manchester data");
1128 } else {
1129 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1130 }
1131 }
1132 return 0;
1133 }
1134 if (hi2==0 && hi==0 && lo==0){
1135 if (g_debugMode) PrintAndLog("DEBUG: Error - no value found");
1136 return 0;
1137 }
1138 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1139 uint32_t cardnum = (lo>>10)&0xFFFF;
1140 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1141 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1142 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1143
1144 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1145 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1146 setDemodBuf(BitStream,BitLen,idx);
1147 if (g_debugMode){
1148 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1149 printDemodBuff();
1150 }
1151 return 1;
b3b70669 1152}
1153
2fc2150e 1154//by marshmellow
eb191de6 1155//IO-Prox demod - FSK RF/64 with preamble of 000000001
1156//print ioprox ID and some format details
b3b70669 1157int CmdFSKdemodIO(const char *Cmd)
1158{
e0165dcf 1159 int idx=0;
1160 //something in graphbuffer?
1161 if (GraphTraceLen < 65) {
1162 if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1163 return 0;
1164 }
1165 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1166 size_t BitLen = getFromGraphBuf(BitStream);
1167 if (BitLen==0) return 0;
1168
1169 //get binary from fsk wave
1170 idx = IOdemodFSK(BitStream,BitLen);
1171 if (idx<0){
1172 if (g_debugMode){
1173 if (idx==-1){
1174 PrintAndLog("DEBUG: Just Noise Detected");
1175 } else if (idx == -2) {
1176 PrintAndLog("DEBUG: not enough samples");
1177 } else if (idx == -3) {
1178 PrintAndLog("DEBUG: error during fskdemod");
1179 } else if (idx == -4) {
1180 PrintAndLog("DEBUG: Preamble not found");
1181 } else if (idx == -5) {
1182 PrintAndLog("DEBUG: Separator bits not found");
1183 } else {
1184 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1185 }
1186 }
1187 return 0;
1188 }
1189 if (idx==0){
2767fc02 1190 if (g_debugMode){
e0165dcf 1191 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
2767fc02 1192 if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1193 }
1194 return 0;
1195 }
1196 //Index map
1197 //0 10 20 30 40 50 60
1198 //| | | | | | |
1199 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1200 //-----------------------------------------------------------------------------
1201 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1202 //
1203 //XSF(version)facility:codeone+codetwo (raw)
1204 //Handle the data
1205 if (idx+64>BitLen) {
2767fc02 1206 if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen);
e0165dcf 1207 return 0;
1208 }
1209 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]);
1210 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]);
1211 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]);
1212 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]);
1213 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]);
1214 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]);
1215 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]);
1216
1217 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1218 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1219 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1220 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1221 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1222 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1223 uint16_t calccrc = 0;
1224
1225 for (uint8_t i=1; i<6; ++i){
1226 calccrc += bytebits_to_byte(BitStream+idx+9*i,8);
e0165dcf 1227 }
1228 calccrc &= 0xff;
1229 calccrc = 0xff - calccrc;
1230
1231 char *crcStr = (crc == calccrc) ? "crc ok": "!crc";
1232
1233 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
1234 setDemodBuf(BitStream,64,idx);
1235 if (g_debugMode){
1236 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
1237 printDemodBuff();
1238 }
1239 return 1;
b3b70669 1240}
1e090a61 1241
1e090a61 1242//by marshmellow
1243//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1244//print full AWID Prox ID and some bit format details if found
1245int CmdFSKdemodAWID(const char *Cmd)
1246{
e0165dcf 1247 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1248 size_t size = getFromGraphBuf(BitStream);
1249 if (size==0) return 0;
1250
1251 //get binary from fsk wave
1252 int idx = AWIDdemodFSK(BitStream, &size);
1253 if (idx<=0){
1254 if (g_debugMode==1){
1255 if (idx == -1)
1256 PrintAndLog("DEBUG: Error - not enough samples");
1257 else if (idx == -2)
1258 PrintAndLog("DEBUG: Error - only noise found");
1259 else if (idx == -3)
1260 PrintAndLog("DEBUG: Error - problem during FSK demod");
1261 else if (idx == -4)
1262 PrintAndLog("DEBUG: Error - AWID preamble not found");
1263 else if (idx == -5)
1264 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1265 else
1266 PrintAndLog("DEBUG: Error %d",idx);
1267 }
1268 return 0;
1269 }
1270
1271 // Index map
1272 // 0 10 20 30 40 50 60
1273 // | | | | | | |
1274 // 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
1275 // -----------------------------------------------------------------------------
1276 // 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
1277 // 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
1278 // |---26 bit---| |-----117----||-------------142-------------|
1279 // b = format bit len, o = odd parity of last 3 bits
1280 // f = facility code, c = card number
1281 // w = wiegand parity
1282 // (26 bit format shown)
1e090a61 1283
e0165dcf 1284 //get raw ID before removing parities
1285 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1286 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1287 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1288 setDemodBuf(BitStream,96,idx);
1289
1290 size = removeParity(BitStream, idx+8, 4, 1, 88);
1291 if (size != 66){
1292 if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1293 return 0;
1294 }
1295 // ok valid card found!
1296
1297 // Index map
1298 // 0 10 20 30 40 50 60
1299 // | | | | | | |
1300 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1301 // -----------------------------------------------------------------------------
1302 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1303 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1304 // |26 bit| |-117--| |-----142------|
1305 // b = format bit len, o = odd parity of last 3 bits
1306 // f = facility code, c = card number
1307 // w = wiegand parity
1308 // (26 bit format shown)
1309
1310 uint32_t fc = 0;
1311 uint32_t cardnum = 0;
1312 uint32_t code1 = 0;
1313 uint32_t code2 = 0;
1314 uint8_t fmtLen = bytebits_to_byte(BitStream,8);
1315 if (fmtLen==26){
1316 fc = bytebits_to_byte(BitStream+9, 8);
1317 cardnum = bytebits_to_byte(BitStream+17, 16);
1318 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1319 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1320 } else {
1321 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1322 if (fmtLen>32){
1323 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1324 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1325 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1326 } else{
1327 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1328 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1329 }
1330 }
1331 if (g_debugMode){
1332 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1333 printDemodBuff();
1334 }
1335 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1336 return 1;
1e090a61 1337}
1338
1339//by marshmellow
1340//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1341//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1342int CmdFSKdemodPyramid(const char *Cmd)
1343{
e0165dcf 1344 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1345 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1346 size_t size = getFromGraphBuf(BitStream);
1347 if (size==0) return 0;
1348
1349 //get binary from fsk wave
1350 int idx = PyramiddemodFSK(BitStream, &size);
1351 if (idx < 0){
1352 if (g_debugMode==1){
1353 if (idx == -5)
1354 PrintAndLog("DEBUG: Error - not enough samples");
1355 else if (idx == -1)
1356 PrintAndLog("DEBUG: Error - only noise found");
1357 else if (idx == -2)
1358 PrintAndLog("DEBUG: Error - problem during FSK demod");
1359 else if (idx == -3)
1360 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1361 else if (idx == -4)
1362 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1363 else
1364 PrintAndLog("DEBUG: Error - idx: %d",idx);
1365 }
1366 return 0;
1367 }
1368 // Index map
1369 // 0 10 20 30 40 50 60
1370 // | | | | | | |
1371 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1372 // -----------------------------------------------------------------------------
1373 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1374 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1375
1376 // 64 70 80 90 100 110 120
1377 // | | | | | | |
1378 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1379 // -----------------------------------------------------------------------------
1380 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1381 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1382 // |---115---||---------71---------|
1383 // s = format start bit, o = odd parity of last 7 bits
1384 // f = facility code, c = card number
1385 // w = wiegand parity, x = extra space for other formats
1386 // p = unknown checksum
1387 // (26 bit format shown)
1388
1389 //get bytes for checksum calc
1390 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1391 uint8_t csBuff[14] = {0x00};
1392 for (uint8_t i = 0; i < 13; i++){
1393 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1394 }
1395 //check checksum calc
1396 //checksum calc thanks to ICEMAN!!
1397 uint32_t checkCS = CRC8Maxim(csBuff,13);
1398
1399 //get raw ID before removing parities
1400 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
1401 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
1402 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
1403 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
1404 setDemodBuf(BitStream,128,idx);
1405
1406 size = removeParity(BitStream, idx+8, 8, 1, 120);
1407 if (size != 105){
1408 if (g_debugMode==1)
1409 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
1410 return 0;
1411 }
1412
1413 // ok valid card found!
1414
1415 // Index map
1416 // 0 10 20 30 40 50 60 70
1417 // | | | | | | | |
1418 // 01234567890123456789012345678901234567890123456789012345678901234567890
1419 // -----------------------------------------------------------------------
1420 // 00000000000000000000000000000000000000000000000000000000000000000000000
1421 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1422
1423 // 71 80 90 100
1424 // | | | |
1425 // 1 2 34567890 1234567890123456 7 8901234
1426 // ---------------------------------------
1427 // 1 1 01110011 0000000001000110 0 1001010
1428 // s w ffffffff cccccccccccccccc w ppppppp
1429 // |--115-| |------71------|
1430 // s = format start bit, o = odd parity of last 7 bits
1431 // f = facility code, c = card number
1432 // w = wiegand parity, x = extra space for other formats
1433 // p = unknown checksum
1434 // (26 bit format shown)
1435
1436 //find start bit to get fmtLen
1437 int j;
1438 for (j=0; j<size; j++){
1439 if(BitStream[j]) break;
1440 }
1441 uint8_t fmtLen = size-j-8;
1442 uint32_t fc = 0;
1443 uint32_t cardnum = 0;
1444 uint32_t code1 = 0;
e0165dcf 1445 if (fmtLen==26){
1446 fc = bytebits_to_byte(BitStream+73, 8);
1447 cardnum = bytebits_to_byte(BitStream+81, 16);
1448 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1449 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);
1450 } else if (fmtLen==45){
1451 fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
1452 fc = bytebits_to_byte(BitStream+53, 10);
1453 cardnum = bytebits_to_byte(BitStream+63, 32);
1454 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1455 } else {
1456 cardnum = bytebits_to_byte(BitStream+81, 16);
1457 if (fmtLen>32){
1458 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1459 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1460 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1461 } else{
1462 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1463 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1464 }
1465 }
1466 if (checksum == checkCS)
1467 PrintAndLog("Checksum %02x passed", checksum);
1468 else
1469 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1470
1471 if (g_debugMode){
1472 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1473 printDemodBuff();
1474 }
1475 return 1;
1e090a61 1476}
1477
b2c330b3 1478// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
04bb0567 1479// 8 databits + 1 parity (1)
1480// CIITT 16 chksum
1481// NATIONAL CODE, ICAR database
b2c330b3 1482// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
04bb0567 1483// FLAG (animal/non-animal)
b2c330b3 1484int CmdFDXBdemodBI(const char *Cmd){
04bb0567 1485
1486 int invert = 1;
1487 int clk = 32;
1488 int errCnt = 0;
1489 int maxErr = 0;
1490 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1491 size_t size = getFromGraphBuf(BitStream);
1492
1493 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1494 if ( errCnt < 0 || errCnt > maxErr ) {
c2c7f6c2 1495 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
04bb0567 1496 return 0;
1497 }
1498
1499 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1500 if (errCnt < 0 || errCnt > maxErr ) {
1501 if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
1502 return 0;
1503 }
1504
b2c330b3 1505 int preambleIndex = FDXBdemodBI(BitStream, &size);
04bb0567 1506 if (preambleIndex < 0){
b2c330b3 1507 if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
04bb0567 1508 return 0;
1509 }
1510
1511 setDemodBuf(BitStream, 128, preambleIndex);
04bb0567 1512
29b6cacc 1513 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
fd1d30cb 1514 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
29b6cacc 1515 if ( size != 104 ) {
04bb0567 1516 if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
1517 return 0;
1518 }
b2c330b3 1519 if (g_debugMode) {
1520 char *bin = sprint_bin_break(BitStream,size,16);
1521 PrintAndLog("DEBUG BinStream:\n%s",bin);
1522 }
1523 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
6eaa8da9 1524 if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
04bb0567 1525
04bb0567 1526 //got a good demod
b2c330b3 1527 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
04bb0567 1528 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1529 uint8_t dataBlockBit = BitStream[48];
1530 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1531 uint8_t animalBit = BitStream[63];
1532 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1533 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1534
07b5a3c3 1535 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
6eaa8da9 1536 uint8_t raw[8];
1537 num_to_bytes(rawid, 8, raw);
6eaa8da9 1538
07b5a3c3 1539 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
6eaa8da9 1540
07b5a3c3 1541 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
c2c7f6c2 1542 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
b2c330b3 1543 PrintAndLog("National Code: %012llu", NationalCode);
c2c7f6c2 1544 PrintAndLog("CountryCode: %04u", countryCode);
b2c330b3 1545 PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
1546 PrintAndLog("reserved Code: %u", reservedCode);
1547 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
6eaa8da9 1548 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1549 PrintAndLog("Extended: 0x%X\n", extended);
fd1d30cb 1550
04bb0567 1551 return 1;
1552}
1553
1554
e770c648 1555//by marshmellow
1556//attempt to psk1 demod graph buffer
4ac906d1 1557int PSKDemod(const char *Cmd, bool verbose)
e770c648 1558{
e0165dcf 1559 int invert=0;
1560 int clk=0;
1561 int maxErr=100;
1562 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1563 if (clk==1){
1564 invert=1;
1565 clk=0;
1566 }
1567 if (invert != 0 && invert != 1) {
2ec87733 1568 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1569 return 0;
1570 }
1571 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1572 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1573 if (BitLen==0) return 0;
2eec55c8 1574 uint8_t carrier=countFC(BitStream, BitLen, 0);
e0165dcf 1575 if (carrier!=2 && carrier!=4 && carrier!=8){
1576 //invalid carrier
1577 return 0;
1578 }
1579 int errCnt=0;
1580 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1581 if (errCnt > maxErr){
2767fc02 1582 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1583 return 0;
1584 }
1585 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
2767fc02 1586 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1587 return 0;
1588 }
2767fc02 1589 if (verbose || g_debugMode){
1590 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1591 if (errCnt>0){
2767fc02 1592 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1593 }
1594 }
1595 //prime demod buffer for output
1596 setDemodBuf(BitStream,BitLen,0);
1597 return 1;
4118b74d 1598}
e770c648 1599
4118b74d 1600// Indala 26 bit decode
1601// by marshmellow
1602// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1603int CmdIndalaDecode(const char *Cmd)
1604{
b4fb11ba 1605 int ans;
1606 if (strlen(Cmd)>0){
1607 ans = PSKDemod(Cmd, 0);
1608 } else{ //default to RF/32
1609 ans = PSKDemod("32", 0);
1610 }
4118b74d 1611
7a8a982b 1612 if (!ans){
ec75f5c1 1613 if (g_debugMode==1)
b4fb11ba 1614 PrintAndLog("Error1: %d",ans);
ba1a299c 1615 return 0;
1616 }
1617 uint8_t invert=0;
2b3af97d 1618 ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert);
ba1a299c 1619 if (ans < 1) {
ec75f5c1 1620 if (g_debugMode==1)
b4fb11ba 1621 PrintAndLog("Error2: %d",ans);
ba1a299c 1622 return -1;
1623 }
a1d17964 1624 char showbits[251]={0x00};
84871873 1625 if (invert)
b4fb11ba 1626 if (g_debugMode==1)
e0165dcf 1627 PrintAndLog("Had to invert bits");
ec75f5c1 1628
ba1a299c 1629 //convert UID to HEX
1630 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
1631 int idx;
1632 uid1=0;
1633 uid2=0;
1634 PrintAndLog("BitLen: %d",DemodBufferLen);
1635 if (DemodBufferLen==64){
1636 for( idx=0; idx<64; idx++) {
1637 uid1=(uid1<<1)|(uid2>>31);
1638 if (DemodBuffer[idx] == 0) {
1639 uid2=(uid2<<1)|0;
1640 showbits[idx]='0';
1641 } else {
1642 uid2=(uid2<<1)|1;
1643 showbits[idx]='1';
1644 }
1645 }
1646 showbits[idx]='\0';
1647 PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2);
1648 }
1649 else {
1650 uid3=0;
1651 uid4=0;
1652 uid5=0;
1653 uid6=0;
1654 uid7=0;
1655 for( idx=0; idx<DemodBufferLen; idx++) {
1656 uid1=(uid1<<1)|(uid2>>31);
1657 uid2=(uid2<<1)|(uid3>>31);
1658 uid3=(uid3<<1)|(uid4>>31);
1659 uid4=(uid4<<1)|(uid5>>31);
1660 uid5=(uid5<<1)|(uid6>>31);
1661 uid6=(uid6<<1)|(uid7>>31);
1662 if (DemodBuffer[idx] == 0) {
1663 uid7=(uid7<<1)|0;
1664 showbits[idx]='0';
1665 }
1666 else {
1667 uid7=(uid7<<1)|1;
1668 showbits[idx]='1';
1669 }
1670 }
1671 showbits[idx]='\0';
1672 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
1673 }
b4fb11ba 1674 if (g_debugMode){
1675 PrintAndLog("DEBUG: printing demodbuffer:");
1676 printDemodBuff();
1677 }
ba1a299c 1678 return 1;
4118b74d 1679}
1680
411105e0 1681int CmdPSKNexWatch(const char *Cmd)
1682{
1683 if (!PSKDemod("", false)) return 0;
1684 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};
1685 size_t startIdx = 0, size = DemodBufferLen;
1686 bool invert = false;
1687 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1688 // if didn't find preamble try again inverting
1689 if (!PSKDemod("1", false)) return 0;
1690 size = DemodBufferLen;
1691 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1692 invert = true;
1693 }
1694 if (size != 128) return 0;
1695 setDemodBuf(DemodBuffer, size, startIdx+4);
1696 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1697 //get ID
1698 uint32_t ID = 0;
1699 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1700 for (uint8_t idx=0; idx<8; idx++){
1701 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1702 }
1703 }
1704 //parity check (TBD)
1705
1706 //checksum check (TBD)
1707
1708 //output
1709 PrintAndLog("NexWatch ID: %d", ID);
1710 if (invert){
1711 PrintAndLog("Had to Invert - probably NexKey");
1712 for (uint8_t idx=0; idx<size; idx++)
1713 DemodBuffer[idx] ^= 1;
1714 }
1715
1716 CmdPrintDemodBuff("x");
1717 return 1;
1718}
1719
04d2721b 1720// by marshmellow
e770c648 1721// takes 3 arguments - clock, invert, maxErr as integers
1722// attempts to demodulate nrz only
1723// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1724int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1725{
e0165dcf 1726 int invert=0;
1727 int clk=0;
1728 int maxErr=100;
1729 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1730 if (clk==1){
1731 invert=1;
1732 clk=0;
1733 }
1734 if (invert != 0 && invert != 1) {
1735 PrintAndLog("Invalid argument: %s", Cmd);
1736 return 0;
1737 }
1738 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1739 size_t BitLen = getFromGraphBuf(BitStream);
1740 if (BitLen==0) return 0;
1741 int errCnt=0;
1742 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
1743 if (errCnt > maxErr){
1744 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1745 return 0;
1746 }
2eec55c8 1747 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1748 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1749 return 0;
1750 }
1751 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1752 //prime demod buffer for output
1753 setDemodBuf(BitStream,BitLen,0);
1754
2767fc02 1755 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1756 if (verbose || g_debugMode) {
1757 PrintAndLog("NRZ demoded bitstream:");
1758 // Now output the bitstream to the scrollback by line of 16 bits
1759 printDemodBuff();
1760 }
1761 return 1;
b4a2fcf6 1762}
1763
1764int CmdNRZrawDemod(const char *Cmd)
1765{
e0165dcf 1766 char cmdp = param_getchar(Cmd, 0);
1767 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1768 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1769 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1770 PrintAndLog(" <invert>, 1 for invert output");
1771 PrintAndLog(" [set maximum allowed errors], default = 100.");
1772 PrintAndLog("");
1773 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1774 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1775 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1776 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1777 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");
1778 return 0;
1779 }
1780 return NRZrawDemod(Cmd, TRUE);
e770c648 1781}
1782
1783// by marshmellow
1784// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 1785// attempts to demodulate psk only
1786// prints binary found and saves in demodbuffer for further commands
e770c648 1787int CmdPSK1rawDemod(const char *Cmd)
4118b74d 1788{
e0165dcf 1789 int ans;
1790 char cmdp = param_getchar(Cmd, 0);
1791 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1792 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
1793 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1794 PrintAndLog(" <invert>, 1 for invert output");
1795 PrintAndLog(" [set maximum allowed errors], default = 100.");
1796 PrintAndLog("");
1797 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
1798 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1799 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1800 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
1801 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");
1802 return 0;
1803 }
1804 ans = PSKDemod(Cmd, TRUE);
1805 //output
1806 if (!ans){
1807 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1808 return 0;
1809 }
7a8a982b 1810
2767fc02 1811 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 1812 // Now output the bitstream to the scrollback by line of 16 bits
1813 printDemodBuff();
1814 return 1;
4118b74d 1815}
1816
04d2721b 1817// by marshmellow
19ff0210 1818// takes same args as cmdpsk1rawdemod
04d2721b 1819int CmdPSK2rawDemod(const char *Cmd)
1820{
e0165dcf 1821 int ans=0;
1822 char cmdp = param_getchar(Cmd, 0);
1823 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1824 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
1825 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1826 PrintAndLog(" <invert>, 1 for invert output");
1827 PrintAndLog(" [set maximum allowed errors], default = 100.");
1828 PrintAndLog("");
1829 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
1830 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1831 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1832 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1833 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");
1834 return 0;
1835 }
1836 ans=PSKDemod(Cmd, TRUE);
1837 if (!ans){
1838 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1839 return 0;
1840 }
1841 psk1TOpsk2(DemodBuffer, DemodBufferLen);
1842 PrintAndLog("PSK2 demoded bitstream:");
1843 // Now output the bitstream to the scrollback by line of 16 bits
1844 printDemodBuff();
1845 return 1;
04d2721b 1846}
1847
19ff0210 1848// by marshmellow - combines all raw demod functions into one menu command
1849int CmdRawDemod(const char *Cmd)
1850{
1851 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
1852
23f0a7d8 1853 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
19ff0210 1854 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
b41534d1 1855 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
1856 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
19ff0210 1857 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
1858 PrintAndLog(" <options> see specific modulation help for optional parameters");
1859 PrintAndLog("");
1fbf8956 1860 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
19ff0210 1861 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
b41534d1 1862 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
19ff0210 1863 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
1864 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
1865 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
1866 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
1867 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
1868 return 0;
1869 }
1870 char cmdp2 = Cmd[1];
1871 int ans = 0;
1872 if (cmdp == 'f' && cmdp2 == 's'){
f8f894a5 1873 ans = CmdFSKrawdemod(Cmd+2);
b41534d1 1874 } else if(cmdp == 'a' && cmdp2 == 'b'){
f8f894a5 1875 ans = Cmdaskbiphdemod(Cmd+2);
19ff0210 1876 } else if(cmdp == 'a' && cmdp2 == 'm'){
f8f894a5 1877 ans = Cmdaskmandemod(Cmd+2);
19ff0210 1878 } else if(cmdp == 'a' && cmdp2 == 'r'){
f8f894a5 1879 ans = Cmdaskrawdemod(Cmd+2);
19ff0210 1880 } else if(cmdp == 'n' && cmdp2 == 'r'){
f8f894a5 1881 ans = CmdNRZrawDemod(Cmd+2);
19ff0210 1882 } else if(cmdp == 'p' && cmdp2 == '1'){
f8f894a5 1883 ans = CmdPSK1rawDemod(Cmd+2);
19ff0210 1884 } else if(cmdp == 'p' && cmdp2 == '2'){
f8f894a5 1885 ans = CmdPSK2rawDemod(Cmd+2);
19ff0210 1886 } else {
1887 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
1888 }
1889 return ans;
1890}
1891
7fe9b0b7 1892int CmdGrid(const char *Cmd)
1893{
e0165dcf 1894 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
1895 PlotGridXdefault= PlotGridX;
1896 PlotGridYdefault= PlotGridY;
1897 RepaintGraphWindow();
1898 return 0;
7fe9b0b7 1899}
1900
1901int CmdHexsamples(const char *Cmd)
1902{
e0165dcf 1903 int i, j;
1904 int requested = 0;
1905 int offset = 0;
1906 char string_buf[25];
1907 char* string_ptr = string_buf;
1908 uint8_t got[BIGBUF_SIZE];
1909
1910 sscanf(Cmd, "%i %i", &requested, &offset);
1911
1912 /* if no args send something */
1913 if (requested == 0) {
1914 requested = 8;
1915 }
1916 if (offset + requested > sizeof(got)) {
1917 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
1918 return 0;
1919 }
1920
1921 GetFromBigBuf(got,requested,offset);
1922 WaitForResponse(CMD_ACK,NULL);
1923
1924 i = 0;
1925 for (j = 0; j < requested; j++) {
1926 i++;
1927 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
1928 if (i == 8) {
1929 *(string_ptr - 1) = '\0'; // remove the trailing space
1930 PrintAndLog("%s", string_buf);
1931 string_buf[0] = '\0';
1932 string_ptr = string_buf;
1933 i = 0;
1934 }
1935 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
1936 *(string_ptr - 1) = '\0';
1937 PrintAndLog("%s", string_buf);
1938 string_buf[0] = '\0';
1939 }
1940 }
1941 return 0;
7fe9b0b7 1942}
1943
7fe9b0b7 1944int CmdHide(const char *Cmd)
1945{
e0165dcf 1946 HideGraphWindow();
1947 return 0;
7fe9b0b7 1948}
1949
78f5b1a7 1950//zero mean GraphBuffer
7fe9b0b7 1951int CmdHpf(const char *Cmd)
1952{
e0165dcf 1953 int i;
1954 int accum = 0;
7fe9b0b7 1955
e0165dcf 1956 for (i = 10; i < GraphTraceLen; ++i)
1957 accum += GraphBuffer[i];
1958 accum /= (GraphTraceLen - 10);
1959 for (i = 0; i < GraphTraceLen; ++i)
1960 GraphBuffer[i] -= accum;
7fe9b0b7 1961
e0165dcf 1962 RepaintGraphWindow();
1963 return 0;
7fe9b0b7 1964}
f6d9fb17 1965
f6821167 1966uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b)
f6d9fb17
MHS
1967{
1968 int i;
1969 uint8_t val = 0;
1970 for(i =0 ; i < bits_per_sample; i++)
1971 {
f6821167 1972 val |= (headBit(b) << (7-i));
f6d9fb17
MHS
1973 }
1974 return val;
1975}
7fe9b0b7 1976
1fbf8956 1977int getSamples(const char *Cmd, bool silent)
7fe9b0b7 1978{
e0165dcf 1979 //If we get all but the last byte in bigbuf,
1980 // we don't have to worry about remaining trash
1981 // in the last byte in case the bits-per-sample
1982 // does not line up on byte boundaries
1983
1984 uint8_t got[BIGBUF_SIZE-1] = { 0 };
1985
1986 int n = strtol(Cmd, NULL, 0);
1987
1988 if (n == 0)
1989 n = sizeof(got);
1990
1991 if (n > sizeof(got))
1992 n = sizeof(got);
1993
1994 PrintAndLog("Reading %d bytes from device memory\n", n);
1995 GetFromBigBuf(got,n,0);
1996 PrintAndLog("Data fetched");
1997 UsbCommand response;
1998 WaitForResponse(CMD_ACK, &response);
1999 uint8_t bits_per_sample = 8;
2000
2001 //Old devices without this feature would send 0 at arg[0]
2002 if(response.arg[0] > 0)
2003 {
2004 sample_config *sc = (sample_config *) response.d.asBytes;
2005 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample
2006 , sc->decimation);
2007 bits_per_sample = sc->bits_per_sample;
2008 }
2009 if(bits_per_sample < 8)
2010 {
2011 PrintAndLog("Unpacking...");
f6821167 2012 BitstreamIn bout = { got, bits_per_sample * n, 0};
e0165dcf 2013 int j =0;
e6432f05 2014 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2015 uint8_t sample = getByte(bits_per_sample, &bout);
2016 GraphBuffer[j] = ((int) sample )- 128;
2017 }
2018 GraphTraceLen = j;
2019 PrintAndLog("Unpacked %d samples" , j );
2020 }else
2021 {
2022 for (int j = 0; j < n; j++) {
2023 GraphBuffer[j] = ((int)got[j]) - 128;
2024 }
2025 GraphTraceLen = n;
2026 }
2027
2028 RepaintGraphWindow();
2029 return 0;
1fbf8956 2030}
2031
2032int CmdSamples(const char *Cmd)
2033{
e0165dcf 2034 return getSamples(Cmd, false);
7fe9b0b7 2035}
2036
d6a120a2
MHS
2037int CmdTuneSamples(const char *Cmd)
2038{
3aa4014b 2039 int timeout = 0;
2040 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2041
3aa4014b 2042 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
2043 SendCommand(&c);
2044
2045 UsbCommand resp;
2046 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
2047 timeout++;
2048 printf(".");
2049 if (timeout > 7) {
2050 PrintAndLog("\nNo response from Proxmark. Aborting...");
2051 return 1;
2052 }
2053 }
2054
2055 int peakv, peakf;
2056 int vLf125, vLf134, vHf;
2057 vLf125 = resp.arg[0] & 0xffff;
2058 vLf134 = resp.arg[0] >> 16;
2059 vHf = resp.arg[1] & 0xffff;;
2060 peakf = resp.arg[2] & 0xffff;
2061 peakv = resp.arg[2] >> 16;
2062 PrintAndLog("");
2063 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2064 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2065 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2066 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2067
2767fc02 2068 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2069 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2070 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2071 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
0d0d0499 2072
2073 if (peakv < LF_UNUSABLE_V)
3aa4014b 2074 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2075 else if (peakv < LF_MARGINAL_V)
3aa4014b 2076 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2077 if (vHf < HF_UNUSABLE_V)
3aa4014b 2078 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2079 else if (vHf < HF_MARGINAL_V)
3aa4014b 2080 PrintAndLog("# Your HF antenna is marginal.");
2081
0d0d0499 2082 if (peakv >= LF_UNUSABLE_V) {
2083 for (int i = 0; i < 256; i++) {
2084 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2085 }
2086 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2087 PrintAndLog("\n");
2088 GraphTraceLen = 256;
2089 ShowGraphWindow();
abd16c45 2090 RepaintGraphWindow();
ba1a299c 2091 }
2092
b4fb11ba 2093 return 0;
d6a120a2
MHS
2094}
2095
3aa4014b 2096
7fe9b0b7 2097int CmdLoad(const char *Cmd)
2098{
e0165dcf 2099 char filename[FILE_PATH_SIZE] = {0x00};
2100 int len = 0;
b915fda3 2101
e0165dcf 2102 len = strlen(Cmd);
2103 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2104 memcpy(filename, Cmd, len);
b915fda3 2105
e0165dcf 2106 FILE *f = fopen(filename, "r");
2107 if (!f) {
2108 PrintAndLog("couldn't open '%s'", filename);
2109 return 0;
2110 }
2111
2112 GraphTraceLen = 0;
2113 char line[80];
2114 while (fgets(line, sizeof (line), f)) {
2115 GraphBuffer[GraphTraceLen] = atoi(line);
2116 GraphTraceLen++;
2117 }
2118 fclose(f);
2119 PrintAndLog("loaded %d samples", GraphTraceLen);
2120 RepaintGraphWindow();
2121 return 0;
7fe9b0b7 2122}
2123
2124int CmdLtrim(const char *Cmd)
2125{
e0165dcf 2126 int ds = atoi(Cmd);
cc15a118 2127 if (GraphTraceLen<=0) return 0;
e0165dcf 2128 for (int i = ds; i < GraphTraceLen; ++i)
2129 GraphBuffer[i-ds] = GraphBuffer[i];
2130 GraphTraceLen -= ds;
7fe9b0b7 2131
e0165dcf 2132 RepaintGraphWindow();
2133 return 0;
7fe9b0b7 2134}
ec75f5c1 2135
2136// trim graph to input argument length
9ec1416a 2137int CmdRtrim(const char *Cmd)
2138{
e0165dcf 2139 int ds = atoi(Cmd);
9ec1416a 2140
e0165dcf 2141 GraphTraceLen = ds;
9ec1416a 2142
e0165dcf 2143 RepaintGraphWindow();
2144 return 0;
9ec1416a 2145}
7fe9b0b7 2146
7fe9b0b7 2147int CmdNorm(const char *Cmd)
2148{
e0165dcf 2149 int i;
2150 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2151
e0165dcf 2152 for (i = 10; i < GraphTraceLen; ++i) {
2153 if (GraphBuffer[i] > max)
2154 max = GraphBuffer[i];
2155 if (GraphBuffer[i] < min)
2156 min = GraphBuffer[i];
2157 }
7fe9b0b7 2158
e0165dcf 2159 if (max != min) {
2160 for (i = 0; i < GraphTraceLen; ++i) {
ba1a299c 2161 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
e0165dcf 2162 (max - min);
ba1a299c 2163 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2164 }
2165 }
2166 RepaintGraphWindow();
2167 return 0;
7fe9b0b7 2168}
2169
2170int CmdPlot(const char *Cmd)
2171{
e0165dcf 2172 ShowGraphWindow();
2173 return 0;
7fe9b0b7 2174}
2175
2176int CmdSave(const char *Cmd)
2177{
e0165dcf 2178 char filename[FILE_PATH_SIZE] = {0x00};
2179 int len = 0;
b915fda3 2180
e0165dcf 2181 len = strlen(Cmd);
2182 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2183 memcpy(filename, Cmd, len);
2184
b915fda3 2185
e0165dcf 2186 FILE *f = fopen(filename, "w");
2187 if(!f) {
2188 PrintAndLog("couldn't open '%s'", filename);
2189 return 0;
2190 }
2191 int i;
2192 for (i = 0; i < GraphTraceLen; i++) {
2193 fprintf(f, "%d\n", GraphBuffer[i]);
2194 }
2195 fclose(f);
2196 PrintAndLog("saved to '%s'", Cmd);
2197 return 0;
7fe9b0b7 2198}
2199
2200int CmdScale(const char *Cmd)
2201{
e0165dcf 2202 CursorScaleFactor = atoi(Cmd);
2203 if (CursorScaleFactor == 0) {
2204 PrintAndLog("bad, can't have zero scale");
2205 CursorScaleFactor = 1;
2206 }
2207 RepaintGraphWindow();
2208 return 0;
7fe9b0b7 2209}
2210
d51b2eda
MHS
2211int CmdDirectionalThreshold(const char *Cmd)
2212{
e0165dcf 2213 int8_t upThres = param_get8(Cmd, 0);
2214 int8_t downThres = param_get8(Cmd, 1);
2215
2216 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2217
2218 int lastValue = GraphBuffer[0];
2219 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2220
2221 for (int i = 1; i < GraphTraceLen; ++i) {
2222 // Apply first threshold to samples heading up
2223 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2224 {
2225 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2226 GraphBuffer[i] = 1;
2227 }
2228 // Apply second threshold to samples heading down
2229 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2230 {
2231 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2232 GraphBuffer[i] = -1;
2233 }
2234 else
2235 {
2236 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2237 GraphBuffer[i] = GraphBuffer[i-1];
2238
2239 }
2240 }
2241 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2242 RepaintGraphWindow();
2243 return 0;
d51b2eda
MHS
2244}
2245
7fe9b0b7 2246int CmdZerocrossings(const char *Cmd)
2247{
e0165dcf 2248 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2249 CmdHpf("");
2250
2251 int sign = 1;
2252 int zc = 0;
2253 int lastZc = 0;
2254
2255 for (int i = 0; i < GraphTraceLen; ++i) {
2256 if (GraphBuffer[i] * sign >= 0) {
2257 // No change in sign, reproduce the previous sample count.
2258 zc++;
2259 GraphBuffer[i] = lastZc;
2260 } else {
2261 // Change in sign, reset the sample count.
2262 sign = -sign;
2263 GraphBuffer[i] = lastZc;
2264 if (sign > 0) {
2265 lastZc = zc;
2266 zc = 0;
2267 }
2268 }
2269 }
2270
2271 RepaintGraphWindow();
2272 return 0;
7fe9b0b7 2273}
2274
f6821167
MHS
2275int usage_data_bin2hex(){
2276 PrintAndLog("Usage: data bin2hex <binary_digits>");
2277 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
2278 return 0;
2279}
2280
2281/**
2282 * @brief Utility for conversion via cmdline.
2283 * @param Cmd
2284 * @return
2285 */
2286int Cmdbin2hex(const char *Cmd)
2287{
2288 int bg =0, en =0;
2289 if(param_getptr(Cmd, &bg, &en, 0))
2290 {
2291 return usage_data_bin2hex();
2292 }
2293 //Number of digits supplied as argument
2294 size_t length = en - bg +1;
2295 size_t bytelen = (length+7) / 8;
2296 uint8_t* arr = (uint8_t *) malloc(bytelen);
2297 memset(arr, 0, bytelen);
2298 BitstreamOut bout = { arr, 0, 0 };
2299
2300 for(; bg <= en ;bg++)
2301 {
2302 char c = Cmd[bg];
2303 if( c == '1') pushBit(&bout, 1);
2304 else if( c == '0') pushBit(&bout, 0);
2305 else PrintAndLog("Ignoring '%c'", c);
2306 }
2307
2308 if(bout.numbits % 8 != 0)
2309 {
2310 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2311 }
2312
2313 //Uses printf instead of PrintAndLog since the latter
2314 // adds linebreaks to each printout - this way was more convenient since we don't have to
2315 // allocate a string and write to that first...
2316 for(size_t x = 0; x < bytelen ; x++)
2317 {
2318 printf("%02X", arr[x]);
2319 }
2320 printf("\n");
2321 free(arr);
2322 return 0;
2323}
2324
2325int usage_data_hex2bin(){
2326
2327 PrintAndLog("Usage: data bin2hex <binary_digits>");
2328 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
2329 return 0;
2330
2331}
2332
2333int Cmdhex2bin(const char *Cmd)
2334{
2335 int bg =0, en =0;
2336 if(param_getptr(Cmd, &bg, &en, 0))
2337 {
2338 return usage_data_hex2bin();
2339 }
2340
2341
2342 while(bg <= en )
2343 {
2344 char x = Cmd[bg++];
2345 // capitalize
2346 if (x >= 'a' && x <= 'f')
2347 x -= 32;
2348 // convert to numeric value
2349 if (x >= '0' && x <= '9')
2350 x -= '0';
2351 else if (x >= 'A' && x <= 'F')
2352 x -= 'A' - 10;
2353 else
2354 continue;
2355
2356 //Uses printf instead of PrintAndLog since the latter
2357 // adds linebreaks to each printout - this way was more convenient since we don't have to
2358 // allocate a string and write to that first...
2359
2360 for(int i= 0 ; i < 4 ; ++i)
2361 printf("%d",(x >> (3 - i)) & 1);
2362 }
2363 printf("\n");
2364
2365 return 0;
2366}
2367
ba1a299c 2368static command_t CommandTable[] =
7fe9b0b7 2369{
e0165dcf 2370 {"help", CmdHelp, 1, "This help"},
49bbc60a 2371 {"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)"},
e0165dcf 2372 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2373 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
415274a7 2374 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"},
e0165dcf 2375 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2376 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
5d01f50a 2377 {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
e0165dcf 2378 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
e0165dcf 2379 {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
2380 {"dec", CmdDec, 1, "Decimate samples"},
2381 {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
b2c330b3 2382 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2383 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2384 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2385 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2386 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2387 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2388 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2389 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2390 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2391 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
f6821167 2392 {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2393 {"hide", CmdHide, 1, "Hide graph window"},
2394 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2395 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2396 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2397 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
fef74fdc 2398 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2399 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2400 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
979bba37 2401 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2402 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2403 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2404 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2405 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2406 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2407 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
2408 {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
2409 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2410 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2411 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2412 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2413 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2414 {NULL, NULL, 0, NULL}
7fe9b0b7 2415};
2416
2417int CmdData(const char *Cmd)
2418{
e0165dcf 2419 CmdsParse(CommandTable, Cmd);
2420 return 0;
7fe9b0b7 2421}
2422
2423int CmdHelp(const char *Cmd)
2424{
e0165dcf 2425 CmdsHelp(CommandTable);
2426 return 0;
7fe9b0b7 2427}
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