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FIX: Coverity, strlen(Cmd) can never be lesser than zero.. *douh*
[proxmark3-svn] / client / cmddata.c
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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"
ad6219fc 26#include "crc16.h"
0de8e387 27#include "loclass/cipherutils.h"
ad6219fc 28
4118b74d 29uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
b10a759f 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;
45 for (; i < size; i++){
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
2d2f7d19 60int usage_data_printdemodbuf(){
bf32dd92 61 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
afa86e5c 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");
bf32dd92 66 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
afa86e5c 67 return 0;
2d2f7d19 68}
69
4118b74d 70//by marshmellow
abd6112f 71void printDemodBuff(void)
4118b74d 72{
ba1a299c 73 int bitLen = DemodBufferLen;
2767fc02 74 if (bitLen<1) {
ba1a299c 75 PrintAndLog("no bits found in demod buffer");
76 return;
77 }
78 if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty
e0165dcf 79
2767fc02 80 char *bin = sprint_bin_break(DemodBuffer,bitLen,16);
81 PrintAndLog("%s",bin);
82
ba1a299c 83 return;
4118b74d 84}
85
8d960002 86int CmdPrintDemodBuff(const char *Cmd)
87{
2d2f7d19 88 char hex[512]={0x00};
89 bool hexMode = false;
90 bool errors = false;
bf32dd92 91 uint32_t offset = 0; //could be size_t but no param_get16...
92 uint32_t length = 512;
2d2f7d19 93 char cmdp = 0;
94 while(param_getchar(Cmd, cmdp) != 0x00)
95 {
96 switch(param_getchar(Cmd, cmdp))
97 {
98 case 'h':
99 case 'H':
100 return usage_data_printdemodbuf();
101 case 'x':
102 case 'X':
103 hexMode = true;
104 cmdp++;
105 break;
106 case 'o':
107 case 'O':
bf32dd92 108 offset = param_get32ex(Cmd, cmdp+1, 0, 10);
2d2f7d19 109 if (!offset) errors = true;
110 cmdp += 2;
111 break;
bf32dd92 112 case 'l':
113 case 'L':
114 length = param_get32ex(Cmd, cmdp+1, 512, 10);
115 if (!length) errors = true;
116 cmdp += 2;
117 break;
2d2f7d19 118 default:
119 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
120 errors = true;
121 break;
122 }
123 if(errors) break;
e0165dcf 124 }
2d2f7d19 125 //Validations
126 if(errors) return usage_data_printdemodbuf();
bf32dd92 127 length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
128 int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
2d2f7d19 129
130 if (hexMode){
131 char *buf = (char *) (DemodBuffer + offset);
bf32dd92 132 numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
2d2f7d19 133 numBits = binarraytohex(hex, buf, numBits);
e0165dcf 134 if (numBits==0) return 0;
2d2f7d19 135 PrintAndLog("DemodBuffer: %s",hex);
e0165dcf 136 } else {
52f2df61 137 PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
e0165dcf 138 }
139 return 1;
8d960002 140}
7fe9b0b7 141
2767fc02 142//by marshmellow
78f5b1a7 143//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
144int CmdGetBitStream(const char *Cmd)
145{
e0165dcf 146 int i;
147 CmdHpf(Cmd);
148 for (i = 0; i < GraphTraceLen; i++) {
149 if (GraphBuffer[i] >= 1) {
150 GraphBuffer[i] = 1;
151 } else {
152 GraphBuffer[i] = 0;
153 }
154 }
155 RepaintGraphWindow();
156 return 0;
78f5b1a7 157}
158
d5a72d2f 159//by marshmellow
abd6112f 160//print 64 bit EM410x ID in multiple formats
b41534d1 161void printEM410x(uint32_t hi, uint64_t id)
2fc2150e 162{
e0165dcf 163 if (id || hi){
164 uint64_t iii=1;
165 uint64_t id2lo=0;
166 uint32_t ii=0;
167 uint32_t i=0;
168 for (ii=5; ii>0;ii--){
169 for (i=0;i<8;i++){
170 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
171 }
172 }
173 if (hi){
174 //output 88 bit em id
2767fc02 175 PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id);
e0165dcf 176 } else{
177 //output 40 bit em id
2767fc02 178 PrintAndLog("\nEM TAG ID : %010llX", id);
179 PrintAndLog("Unique TAG ID : %010llX", id2lo);
e0165dcf 180 PrintAndLog("\nPossible de-scramble patterns");
181 PrintAndLog("HoneyWell IdentKey {");
182 PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
183 PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF);
184 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
185 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
186 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF));
187 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF));
188 PrintAndLog("DEZ 14/IK2 : %014lld",id);
189 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
190 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
191 (id2lo & 0xf000000000) >> 36,
192 (id2lo & 0x0f00000000) >> 32,
193 (id2lo & 0x00f0000000) >> 28,
194 (id2lo & 0x000f000000) >> 24,
195 (id2lo & 0x0000f00000) >> 20,
196 (id2lo & 0x00000f0000) >> 16,
197 (id2lo & 0x000000f000) >> 12,
198 (id2lo & 0x0000000f00) >> 8,
199 (id2lo & 0x00000000f0) >> 4,
200 (id2lo & 0x000000000f)
201 );
202 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
203 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
2767fc02 204 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton);
e0165dcf 205
206 uint32_t p1id = (id & 0xFFFFFF);
207 uint8_t arr[32] = {0x00};
208 int i =0;
209 int j = 23;
210 for (; i < 24; ++i, --j ){
211 arr[i] = (p1id >> i) & 1;
212 }
213
214 uint32_t p1 = 0;
215
216 p1 |= arr[23] << 21;
217 p1 |= arr[22] << 23;
218 p1 |= arr[21] << 20;
219 p1 |= arr[20] << 22;
220
221 p1 |= arr[19] << 18;
222 p1 |= arr[18] << 16;
223 p1 |= arr[17] << 19;
224 p1 |= arr[16] << 17;
225
226 p1 |= arr[15] << 13;
227 p1 |= arr[14] << 15;
228 p1 |= arr[13] << 12;
229 p1 |= arr[12] << 14;
230
231 p1 |= arr[11] << 6;
232 p1 |= arr[10] << 2;
233 p1 |= arr[9] << 7;
234 p1 |= arr[8] << 1;
235
236 p1 |= arr[7] << 0;
237 p1 |= arr[6] << 8;
238 p1 |= arr[5] << 11;
239 p1 |= arr[4] << 3;
240
241 p1 |= arr[3] << 10;
242 p1 |= arr[2] << 4;
243 p1 |= arr[1] << 5;
244 p1 |= arr[0] << 9;
2767fc02 245 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
e0165dcf 246
247 uint16_t sebury1 = id & 0xFFFF;
248 uint8_t sebury2 = (id >> 16) & 0x7F;
249 uint32_t sebury3 = id & 0x7FFFFF;
2767fc02 250 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
e0165dcf 251 }
252 }
253 return;
eb191de6 254}
255
fef74fdc 256int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
13d77ef9 257{
fef74fdc 258 size_t idx = 0;
259 size_t BitLen = DemodBufferLen;
260 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
261 memcpy(BitStream, DemodBuffer, BitLen);
262 if (Em410xDecode(BitStream, &BitLen, &idx, hi, lo)){
263 //set GraphBuffer for clone or sim command
264 setDemodBuf(BitStream, BitLen, idx);
e0165dcf 265 if (g_debugMode){
fef74fdc 266 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 267 printDemodBuff();
268 }
fef74fdc 269 if (verbose){
270 PrintAndLog("EM410x pattern found: ");
271 printEM410x(*hi, *lo);
272 }
e0165dcf 273 return 1;
274 }
275 return 0;
13d77ef9 276}
fef74fdc 277
278int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
279{
280 if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
281 return AskEm410xDecode(verbose, hi, lo);
282}
283
e888ed8e 284//by marshmellow
e770c648 285//takes 3 arguments - clock, invert and maxErr as integers
286//attempts to demodulate ask while decoding manchester
287//prints binary found and saves in graphbuffer for further commands
288int CmdAskEM410xDemod(const char *Cmd)
289{
e0165dcf 290 char cmdp = param_getchar(Cmd, 0);
291 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
292 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
293 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
294 PrintAndLog(" <invert>, 1 for invert output");
295 PrintAndLog(" [set maximum allowed errors], default = 100.");
296 PrintAndLog("");
297 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
298 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
299 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
300 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
301 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");
302 return 0;
303 }
e0165dcf 304 uint64_t lo = 0;
fef74fdc 305 uint32_t hi = 0;
306 return AskEm410xDemod(Cmd, &hi, &lo, true);
e770c648 307}
308
fef74fdc 309//by marshmellow
310//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
311// (amp may not be needed anymore)
312//verbose will print results and demoding messages
313//emSearch will auto search for EM410x format in bitstream
314//askType switches decode: ask/raw = 0, ask/manchester = 1
315int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
e888ed8e 316{
e0165dcf 317 int invert=0;
318 int clk=0;
319 int maxErr=100;
fef74fdc 320 int maxLen=0;
321 uint8_t askAmp = 0;
322 char amp = param_getchar(Cmd, 0);
e0165dcf 323 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
fef74fdc 324 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
bf32dd92 325 if (!maxLen) maxLen = BIGBUF_SIZE;
e0165dcf 326 if (invert != 0 && invert != 1) {
327 PrintAndLog("Invalid argument: %s", Cmd);
328 return 0;
329 }
330 if (clk==1){
331 invert=1;
332 clk=0;
333 }
fef74fdc 334 if (amp == 'a' || amp == 'A') askAmp=1;
e0165dcf 335 size_t BitLen = getFromGraphBuf(BitStream);
2767fc02 336 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
fef74fdc 337 if (BitLen<255) return 0;
23f0a7d8 338 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
fef74fdc 339
340 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
341 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 342 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 343 return 0;
344 }
2767fc02 345 if (errCnt>maxErr){
346 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
347 return 0;
348 }
349 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 350
351 //output
e0165dcf 352 setDemodBuf(BitStream,BitLen,0);
fef74fdc 353 if (verbose || g_debugMode){
354 if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
1299c798 355 if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
356 else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 357 // Now output the bitstream to the scrollback by line of 16 bits
358 printDemodBuff();
359
360 }
361 uint64_t lo = 0;
362 uint32_t hi = 0;
e0165dcf 363 if (emSearch){
fef74fdc 364 AskEm410xDecode(true, &hi, &lo);
e0165dcf 365 }
366 return 1;
eb191de6 367}
368
4ac906d1 369//by marshmellow
fef74fdc 370//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 371//attempts to demodulate ask while decoding manchester
372//prints binary found and saves in graphbuffer for further commands
373int Cmdaskmandemod(const char *Cmd)
374{
e0165dcf 375 char cmdp = param_getchar(Cmd, 0);
fef74fdc 376 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
377 PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
378 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
379 PrintAndLog(" <invert>, 1 to invert output");
380 PrintAndLog(" [set maximum allowed errors], default = 100");
381 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
382 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
e0165dcf 383 PrintAndLog("");
384 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
385 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
386 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
387 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
388 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");
389 return 0;
390 }
fef74fdc 391 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 392}
393
eb191de6 394//by marshmellow
d5a72d2f 395//manchester decode
eb191de6 396//stricktly take 10 and 01 and convert to 0 and 1
397int Cmdmandecoderaw(const char *Cmd)
398{
e0165dcf 399 int i =0;
400 int errCnt=0;
401 size_t size=0;
fef74fdc 402 int invert=0;
0ad1a1d4 403 int maxErr = 20;
e0165dcf 404 char cmdp = param_getchar(Cmd, 0);
1f918317 405 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
fef74fdc 406 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
e0165dcf 407 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
408 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
fef74fdc 409 PrintAndLog(" [invert] invert output");
1f918317 410 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
e0165dcf 411 PrintAndLog("");
412 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
413 return 0;
414 }
415 if (DemodBufferLen==0) return 0;
416 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
417 int high=0,low=0;
418 for (;i<DemodBufferLen;++i){
419 if (DemodBuffer[i]>high) high=DemodBuffer[i];
420 else if(DemodBuffer[i]<low) low=DemodBuffer[i];
421 BitStream[i]=DemodBuffer[i];
422 }
1f918317 423 if (high>7 || low <0 ){
2767fc02 424 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 425 return 0;
426 }
1f918317 427
fef74fdc 428 sscanf(Cmd, "%i %i", &invert, &maxErr);
e0165dcf 429 size=i;
fef74fdc 430 errCnt=manrawdecode(BitStream, &size, invert);
e0165dcf 431 if (errCnt>=maxErr){
432 PrintAndLog("Too many errors: %d",errCnt);
433 return 0;
434 }
435 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 436 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
e0165dcf 437 if (errCnt==0){
438 uint64_t id = 0;
439 uint32_t hi = 0;
440 size_t idx=0;
441 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
442 //need to adjust to set bitstream back to manchester encoded data
443 //setDemodBuf(BitStream, size, idx);
444
445 printEM410x(hi, id);
446 }
447 }
448 return 1;
d5a72d2f 449}
450
451//by marshmellow
452//biphase decode
453//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 454//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
455// and "invert" default = 0 if 1 it will invert output
2767fc02 456// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 457int CmdBiphaseDecodeRaw(const char *Cmd)
458{
ba1a299c 459 size_t size=0;
b41534d1 460 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 461 char cmdp = param_getchar(Cmd, 0);
462 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
b41534d1 463 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
464 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
b4fb11ba 465 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
e0165dcf 466 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
b4fb11ba 467 PrintAndLog("");
468 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
469 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
b41534d1 470 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
b4fb11ba 471 PrintAndLog("");
472 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
473 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
474 return 0;
475 }
b41534d1 476 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
477 if (DemodBufferLen==0){
478 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 479 return 0;
480 }
b41534d1 481 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
482 memcpy(BitStream, DemodBuffer, DemodBufferLen);
483 size = DemodBufferLen;
1e090a61 484 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 485 if (errCnt<0){
486 PrintAndLog("Error during decode:%d", errCnt);
487 return 0;
488 }
489 if (errCnt>maxErr){
b4fb11ba 490 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
491 return 0;
492 }
b41534d1 493
494 if (errCnt>0){
2767fc02 495 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
b41534d1 496 }
497 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 498 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 499
500 if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 501 return 1;
eb191de6 502}
503
b41534d1 504//by marshmellow
505// - ASK Demod then Biphase decode GraphBuffer samples
506int ASKbiphaseDemod(const char *Cmd, bool verbose)
507{
508 //ask raw demod GraphBuffer first
b4c1f167 509 int offset=0, clk=0, invert=0, maxErr=0;
510 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
1299c798 511
b41534d1 512 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1299c798 513 size_t size = getFromGraphBuf(BitStream);
b10a759f 514 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
b4c1f167 515 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1299c798 516 if ( errCnt < 0 || errCnt > maxErr ) {
517 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
518 return 0;
519 }
520
521 //attempt to Biphase decode BitStream
522 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 523 if (errCnt < 0){
524 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
525 return 0;
526 }
527 if (errCnt > maxErr) {
528 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);
529 return 0;
530 }
531 //success set DemodBuffer and return
532 setDemodBuf(BitStream, size, 0);
533 if (g_debugMode || verbose){
1299c798 534 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 535 printDemodBuff();
536 }
537 return 1;
538}
539//by marshmellow - see ASKbiphaseDemod
540int Cmdaskbiphdemod(const char *Cmd)
541{
e0165dcf 542 char cmdp = param_getchar(Cmd, 0);
fef74fdc 543 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
544 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
e0165dcf 545 PrintAndLog(" [offset], offset to begin biphase, default=0");
546 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
547 PrintAndLog(" <invert>, 1 to invert output");
548 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 549 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
e0165dcf 550 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
551 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
552 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
553 PrintAndLog(" NOTE: any other arg must have previous args set to work");
554 PrintAndLog("");
555 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
556 PrintAndLog("");
fef74fdc 557 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
558 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
559 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
560 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
561 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
562 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");
563 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 564 return 0;
565 }
566 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 567}
568
8d960002 569//by marshmellow
570//attempts to demodulate and identify a G_Prox_II verex/chubb card
571//WARNING: if it fails during some points it will destroy the DemodBuffer data
572// but will leave the GraphBuffer intact.
573//if successful it will push askraw data back to demod buffer ready for emulation
574int CmdG_Prox_II_Demod(const char *Cmd)
575{
e0165dcf 576 if (!ASKbiphaseDemod(Cmd, FALSE)){
577 if (g_debugMode) PrintAndLog("ASKbiphaseDemod failed 1st try");
578 return 0;
579 }
580 size_t size = DemodBufferLen;
581 //call lfdemod.c demod for gProxII
582 int ans = gProxII_Demod(DemodBuffer, &size);
583 if (ans < 0){
584 if (g_debugMode) PrintAndLog("Error gProxII_Demod");
585 return 0;
586 }
587 //got a good demod
588 uint32_t ByteStream[65] = {0x00};
589 uint8_t xorKey=0;
590 uint8_t keyCnt=0;
591 uint8_t bitCnt=0;
592 uint8_t ByteCnt=0;
593 size_t startIdx = ans + 6; //start after preamble
594 for (size_t idx = 0; idx<size-6; idx++){
595 if ((idx+1) % 5 == 0){
596 //spacer bit - should be 0
597 if (DemodBuffer[startIdx+idx] != 0) {
598 if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
599 return 0;
600 }
601 continue;
602 }
603 if (keyCnt<8){ //lsb first
604 xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
605 keyCnt++;
606 if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
607 continue;
608 }
609 //lsb first
610 ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
611 bitCnt++;
612 if (bitCnt % 8 == 0){
613 if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
614 bitCnt=0;
615 ByteCnt++;
616 }
617 }
618 for (uint8_t i = 0; i < ByteCnt; i++){
619 ByteStream[i] ^= xorKey; //xor
620 if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
621 }
622 //now ByteStream contains 64 bytes of decrypted raw tag data
623 //
624 uint8_t fmtLen = ByteStream[0]>>2;
625 uint32_t FC = 0;
626 uint32_t Card = 0;
627 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
628 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
629 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
630
631 if (fmtLen==36){
632 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
633 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
634 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
635 } else if(fmtLen==26){
636 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
637 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
638 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
639 } else {
640 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
641 }
642 PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
643 setDemodBuf(DemodBuffer+ans, 96, 0);
644 return 1;
8d960002 645}
646
a126332a 647//by marshmellow
648//see ASKDemod for what args are accepted
649int CmdVikingDemod(const char *Cmd)
650{
651 if (!ASKDemod(Cmd, false, false, 1)) {
652 if (g_debugMode) PrintAndLog("ASKDemod failed");
653 return 0;
654 }
655 size_t size = DemodBufferLen;
656 //call lfdemod.c demod for Viking
657 int ans = VikingDemod_AM(DemodBuffer, &size);
658 if (ans < 0) {
659 if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
660 return 0;
661 }
662 //got a good demod
663 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
664 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
665 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
666 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
667 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
668 PrintAndLog("Raw: %08X%08X", raw1,raw2);
669 setDemodBuf(DemodBuffer+ans, 64, 0);
670 return 1;
671}
672
fef74fdc 673//by marshmellow - see ASKDemod
4ac906d1 674int Cmdaskrawdemod(const char *Cmd)
675{
e0165dcf 676 char cmdp = param_getchar(Cmd, 0);
fef74fdc 677 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
678 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
e0165dcf 679 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
680 PrintAndLog(" <invert>, 1 to invert output");
681 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 682 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
e0165dcf 683 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
684 PrintAndLog("");
fef74fdc 685 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
686 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
687 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
688 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
689 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
690 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");
691 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 692 return 0;
693 }
fef74fdc 694 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 695}
696
73d04bb4 697int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 698{
e0165dcf 699 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
700 size_t Correlation = 0;
701 int maxSum = 0;
702 int lastMax = 0;
703 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
704 for (int i = 0; i < GraphTraceLen - window; ++i) {
705 int sum = 0;
706 for (int j = 0; j < window; ++j) {
707 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
708 }
709 CorrelBuffer[i] = sum;
710 if (sum >= maxSum-100 && sum <= maxSum+100){
711 //another max
712 Correlation = i-lastMax;
713 lastMax = i;
714 if (sum > maxSum) maxSum = sum;
715 } else if (sum > maxSum){
716 maxSum=sum;
717 lastMax = i;
718 }
719 }
720 if (Correlation==0){
721 //try again with wider margin
722 for (int i = 0; i < GraphTraceLen - window; i++){
723 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
724 //another max
725 Correlation = i-lastMax;
726 lastMax = i;
727 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
728 }
729 }
730 }
731 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
732
733 if (SaveGrph){
734 GraphTraceLen = GraphTraceLen - window;
735 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
736 RepaintGraphWindow();
737 }
738 return Correlation;
73d04bb4 739}
7fe9b0b7 740
9f7bbd24 741int usage_data_autocorr(void)
742{
e0165dcf 743 //print help
744 PrintAndLog("Usage: data autocorr [window] [g]");
745 PrintAndLog("Options: ");
746 PrintAndLog(" h This help");
747 PrintAndLog(" [window] window length for correlation - default = 4000");
748 PrintAndLog(" g save back to GraphBuffer (overwrite)");
749 return 0;
9f7bbd24 750}
751
73d04bb4 752int CmdAutoCorr(const char *Cmd)
753{
e0165dcf 754 char cmdp = param_getchar(Cmd, 0);
755 if (cmdp == 'h' || cmdp == 'H')
756 return usage_data_autocorr();
757 int window = 4000; //set default
758 char grph=0;
759 bool updateGrph = FALSE;
760 sscanf(Cmd, "%i %c", &window, &grph);
761
762 if (window >= GraphTraceLen) {
763 PrintAndLog("window must be smaller than trace (%d samples)",
764 GraphTraceLen);
765 return 0;
766 }
767 if (grph == 'g') updateGrph=TRUE;
768 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 769}
770
771int CmdBitsamples(const char *Cmd)
772{
e0165dcf 773 int cnt = 0;
774 uint8_t got[12288];
952a8bb5 775
e0165dcf 776 GetFromBigBuf(got,sizeof(got),0);
777 WaitForResponse(CMD_ACK,NULL);
7fe9b0b7 778
e0165dcf 779 for (int j = 0; j < sizeof(got); j++) {
780 for (int k = 0; k < 8; k++) {
781 if(got[j] & (1 << (7 - k))) {
782 GraphBuffer[cnt++] = 1;
783 } else {
784 GraphBuffer[cnt++] = 0;
785 }
786 }
787 }
788 GraphTraceLen = cnt;
789 RepaintGraphWindow();
790 return 0;
7fe9b0b7 791}
792
7fe9b0b7 793int CmdBuffClear(const char *Cmd)
794{
e0165dcf 795 UsbCommand c = {CMD_BUFF_CLEAR};
796 SendCommand(&c);
797 ClearGraph(true);
798 return 0;
7fe9b0b7 799}
800
801int CmdDec(const char *Cmd)
802{
e0165dcf 803 for (int i = 0; i < (GraphTraceLen / 2); ++i)
804 GraphBuffer[i] = GraphBuffer[i * 2];
805 GraphTraceLen /= 2;
806 PrintAndLog("decimated by 2");
807 RepaintGraphWindow();
808 return 0;
7fe9b0b7 809}
698b649e
MHS		 810/**
811 * Undecimate - I'd call it 'interpolate', but we'll save that
812 * name until someone does an actual interpolation command, not just
813 * blindly repeating samples
814 * @param Cmd
815 * @return
816 */
817int CmdUndec(const char *Cmd)
818{
c856ceae
MHS		 819 if(param_getchar(Cmd, 0) == 'h')
820 {
821 PrintAndLog("Usage: data undec [factor]");
822 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
823 PrintAndLog("Options: ");
824 PrintAndLog(" h This help");
825 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
826 PrintAndLog("Example: 'data undec 3'");
827 return 0;
828 }
829
1d42f25f 830 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
698b649e
MHS		 831 //We have memory, don't we?
832 int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
c856ceae 833 uint32_t g_index = 0 ,s_index = 0;
1d42f25f 834 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
698b649e 835 {
c856ceae 836 int count = 0;
1d42f25f 837 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
c856ceae 838 swap[s_index+count] = GraphBuffer[g_index];
1d42f25f 839 s_index += count;
840 g_index++;
698b649e 841 }
698b649e 842
1d42f25f 843 memcpy(GraphBuffer, swap, s_index * sizeof(int));
c856ceae
MHS		 844 GraphTraceLen = s_index;
845 RepaintGraphWindow();
698b649e
MHS		 846 return 0;
847}
7fe9b0b7 848
ec75f5c1 849//by marshmellow
850//shift graph zero up or down based on input + or -
851int CmdGraphShiftZero(const char *Cmd)
852{
853
e0165dcf 854 int shift=0;
855 //set options from parameters entered with the command
856 sscanf(Cmd, "%i", &shift);
857 int shiftedVal=0;
858 for(int i = 0; i<GraphTraceLen; i++){
859 shiftedVal=GraphBuffer[i]+shift;
860 if (shiftedVal>127)
861 shiftedVal=127;
862 else if (shiftedVal<-127)
863 shiftedVal=-127;
864 GraphBuffer[i]= shiftedVal;
865 }
866 CmdNorm("");
867 return 0;
ec75f5c1 868}
869
6de43508 870//by marshmellow
871//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 872//similar to dirtheshold, threshold commands
6de43508 873//takes a threshold length which is the measured length between two samples then determines an edge
874int CmdAskEdgeDetect(const char *Cmd)
875{
e0165dcf 876 int thresLen = 25;
877 sscanf(Cmd, "%i", &thresLen);
49bbc60a 878
e0165dcf 879 for(int i = 1; i<GraphTraceLen; i++){
880 if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
49bbc60a 881 GraphBuffer[i-1] = 127;
e0165dcf 882 else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
49bbc60a 883 GraphBuffer[i-1] = -127;
e0165dcf 884 }
885 RepaintGraphWindow();
e0165dcf 886 return 0;
6de43508 887}
888
7fe9b0b7 889/* Print our clock rate */
ba1a299c 890// uses data from graphbuffer
f3bf15e4 891// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 892int CmdDetectClockRate(const char *Cmd)
893{
f3bf15e4 894 char cmdp = param_getchar(Cmd, 0);
fef74fdc 895 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
896 PrintAndLog("Usage: data detectclock [modulation] <clock>");
f3bf15e4 897 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
fef74fdc 898 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
f3bf15e4 899 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
900 PrintAndLog("");
901 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
902 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
903 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
904 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
905 }
906 int ans=0;
907 if (cmdp == 'a'){
fef74fdc 908 ans = GetAskClock(Cmd+1, true, false);
f3bf15e4 909 } else if (cmdp == 'f'){
910 ans = GetFskClock("", true, false);
911 } else if (cmdp == 'n'){
912 ans = GetNrzClock("", true, false);
913 } else if (cmdp == 'p'){
914 ans = GetPskClock("", true, false);
915 } else {
916 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
917 }
918 return ans;
7fe9b0b7 919}
66707a3b 920
2767fc02 921char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
922{
923 char *fskType;
924 if (fchigh==10 && fclow==8){
925 if (invert) //fsk2a
926 fskType = "FSK2a";
927 else //fsk2
928 fskType = "FSK2";
929 } else if (fchigh == 8 && fclow == 5) {
930 if (invert)
931 fskType = "FSK1";
932 else
933 fskType = "FSK1a";
934 } else {
935 fskType = "FSK??";
936 }
937 return fskType;
938}
939
2fc2150e 940//by marshmellow
eb191de6 941//fsk raw demod and print binary
6de43508 942//takes 4 arguments - Clock, invert, fchigh, fclow
943//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 944int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 945{
e0165dcf 946 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
3f267966 947 uint8_t rfLen, invert, fchigh, fclow;
e0165dcf 948
3f267966 949 //set defaults
e0165dcf 950 //set options from parameters entered with the command
9332b857 951 rfLen = param_get8(Cmd, 0);
952 invert = param_get8(Cmd, 1);
953 fchigh = param_get8(Cmd, 2);
954 fclow = param_get8(Cmd, 3);
e0165dcf 955 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
956 if (rfLen==1){
2eec55c8 957 invert = 1; //if invert option only is used
e0165dcf 958 rfLen = 0;
959 }
960 }
961
962 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
963 size_t BitLen = getFromGraphBuf(BitStream);
964 if (BitLen==0) return 0;
965 //get field clock lengths
9332b857 966 uint8_t fc1=0, fc2=0, rf1=0;
bf32dd92 967 if (!fchigh || !fclow) {
9332b857 968 uint8_t ans = fskClocks(&fc1, &fc2, &rf1, false);
969 if (ans == 0) {
970 if (g_debugMode) PrintAndLog("\nError: cannot detect valid fsk field clocks");
971 return 0; // can't detect field clock
e0165dcf 972 }
9332b857 973 fchigh = fc1;
974 fclow = fc2;
975 if (rfLen == 0) rfLen = rf1;
e0165dcf 976 }
977 //get bit clock length
bf32dd92 978 if (!rfLen){
e0165dcf 979 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
bf32dd92 980 if (!rfLen) rfLen = 50;
e0165dcf 981 }
3f267966 982 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
983 if (size > 0){
984 setDemodBuf(BitStream, size, 0);
e0165dcf 985
986 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 987 if (verbose || g_debugMode) {
bf32dd92 988 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
3f267966 989 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
2767fc02 990 printDemodBuff();
e0165dcf 991 }
bf32dd92 992
e0165dcf 993 return 1;
3f267966 994 } else {
2767fc02 995 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 996 }
997 return 0;
b3b70669 998}
999
4ac906d1 1000//by marshmellow
1001//fsk raw demod and print binary
1002//takes 4 arguments - Clock, invert, fchigh, fclow
1003//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1004int CmdFSKrawdemod(const char *Cmd)
1005{
e0165dcf 1006 char cmdp = param_getchar(Cmd, 0);
1007 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1008 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
1009 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
1010 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
1011 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
1012 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
1013 PrintAndLog("");
1014 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
1015 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
1016 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
1017 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
1018 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
1019 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
1020 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
1021 return 0;
1022 }
1023 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1024}
1025
eb191de6 1026//by marshmellow (based on existing demod + holiman's refactor)
1027//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1028//print full HID Prox ID and some bit format details if found
b3b70669 1029int CmdFSKdemodHID(const char *Cmd)
1030{
e0165dcf 1031 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1032 uint32_t hi2=0, hi=0, lo=0;
1033
1034 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1035 size_t BitLen = getFromGraphBuf(BitStream);
1036 if (BitLen==0) return 0;
1037 //get binary from fsk wave
1038 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1039 if (idx<0){
1040 if (g_debugMode){
1041 if (idx==-1){
1042 PrintAndLog("DEBUG: Just Noise Detected");
1043 } else if (idx == -2) {
1044 PrintAndLog("DEBUG: Error demoding fsk");
1045 } else if (idx == -3) {
1046 PrintAndLog("DEBUG: Preamble not found");
1047 } else if (idx == -4) {
1048 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen);
1049 } else {
1050 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1051 }
1052 }
1053 return 0;
1054 }
1055 if (hi2==0 && hi==0 && lo==0) {
1056 if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
1057 return 0;
1058 }
1059 if (hi2 != 0){ //extra large HID tags
1060 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1061 (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
1062 }
1063 else { //standard HID tags <38 bits
1064 uint8_t fmtLen = 0;
1065 uint32_t fc = 0;
1066 uint32_t cardnum = 0;
1067 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1068 uint32_t lo2=0;
1069 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1070 uint8_t idx3 = 1;
1071 while(lo2>1){ //find last bit set to 1 (format len bit)
1072 lo2=lo2>>1;
1073 idx3++;
1074 }
1075 fmtLen =idx3+19;
1076 fc =0;
1077 cardnum=0;
1078 if(fmtLen==26){
1079 cardnum = (lo>>1)&0xFFFF;
1080 fc = (lo>>17)&0xFF;
1081 }
1082 if(fmtLen==34){
1083 cardnum = (lo>>1)&0xFFFF;
1084 fc= ((hi&1)<<15)|(lo>>17);
1085 }
1086 if(fmtLen==35){
1087 cardnum = (lo>>1)&0xFFFFF;
1088 fc = ((hi&1)<<11)|(lo>>21);
1089 }
1090 }
1091 else { //if bit 38 is not set then 37 bit format is used
1092 fmtLen = 37;
1093 fc = 0;
1094 cardnum = 0;
1095 if(fmtLen == 37){
1096 cardnum = (lo>>1)&0x7FFFF;
1097 fc = ((hi&0xF)<<12)|(lo>>20);
1098 }
1099 }
1100 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1101 (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
1102 (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);
1103 }
1104 setDemodBuf(BitStream,BitLen,idx);
1105 if (g_debugMode){
1106 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1107 printDemodBuff();
1108 }
1109 return 1;
ec75f5c1 1110}
1111
04d2721b 1112//by marshmellow
1113//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1114//print full Paradox Prox ID and some bit format details if found
1115int CmdFSKdemodParadox(const char *Cmd)
1116{
e0165dcf 1117 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1118 uint32_t hi2=0, hi=0, lo=0;
1119
1120 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1121 size_t BitLen = getFromGraphBuf(BitStream);
1122 if (BitLen==0) return 0;
1123 //get binary from fsk wave
1124 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1125 if (idx<0){
1126 if (g_debugMode){
1127 if (idx==-1){
1128 PrintAndLog("DEBUG: Just Noise Detected");
1129 } else if (idx == -2) {
1130 PrintAndLog("DEBUG: Error demoding fsk");
1131 } else if (idx == -3) {
1132 PrintAndLog("DEBUG: Preamble not found");
1133 } else if (idx == -4) {
1134 PrintAndLog("DEBUG: Error in Manchester data");
1135 } else {
1136 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1137 }
1138 }
1139 return 0;
1140 }
1141 if (hi2==0 && hi==0 && lo==0){
1142 if (g_debugMode) PrintAndLog("DEBUG: Error - no value found");
1143 return 0;
1144 }
1145 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1146 uint32_t cardnum = (lo>>10)&0xFFFF;
1147 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1148 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1149 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1150
1151 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1152 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1153 setDemodBuf(BitStream,BitLen,idx);
1154 if (g_debugMode){
1155 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1156 printDemodBuff();
1157 }
1158 return 1;
b3b70669 1159}
1160
2fc2150e 1161//by marshmellow
eb191de6 1162//IO-Prox demod - FSK RF/64 with preamble of 000000001
1163//print ioprox ID and some format details
b3b70669 1164int CmdFSKdemodIO(const char *Cmd)
1165{
e0165dcf 1166 int idx=0;
1167 //something in graphbuffer?
1168 if (GraphTraceLen < 65) {
1169 if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1170 return 0;
1171 }
1172 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1173 size_t BitLen = getFromGraphBuf(BitStream);
1174 if (BitLen==0) return 0;
1175
1176 //get binary from fsk wave
1177 idx = IOdemodFSK(BitStream,BitLen);
1178 if (idx<0){
1179 if (g_debugMode){
1180 if (idx==-1){
1181 PrintAndLog("DEBUG: Just Noise Detected");
1182 } else if (idx == -2) {
1183 PrintAndLog("DEBUG: not enough samples");
1184 } else if (idx == -3) {
1185 PrintAndLog("DEBUG: error during fskdemod");
1186 } else if (idx == -4) {
1187 PrintAndLog("DEBUG: Preamble not found");
1188 } else if (idx == -5) {
1189 PrintAndLog("DEBUG: Separator bits not found");
1190 } else {
1191 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1192 }
1193 }
1194 return 0;
1195 }
1196 if (idx==0){
2767fc02 1197 if (g_debugMode){
e0165dcf 1198 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
2767fc02 1199 if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1200 }
1201 return 0;
1202 }
1203 //Index map
1204 //0 10 20 30 40 50 60
1205 //| | | | | | |
1206 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1207 //-----------------------------------------------------------------------------
1208 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1209 //
1210 //XSF(version)facility:codeone+codetwo (raw)
1211 //Handle the data
1212 if (idx+64>BitLen) {
2767fc02 1213 if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen);
e0165dcf 1214 return 0;
1215 }
1216 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]);
1217 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]);
1218 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]);
1219 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]);
1220 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]);
1221 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]);
1222 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]);
1223
1224 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1225 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1226 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1227 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1228 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1229 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1230 uint16_t calccrc = 0;
1231
1232 for (uint8_t i=1; i<6; ++i){
1233 calccrc += bytebits_to_byte(BitStream+idx+9*i,8);
e0165dcf 1234 }
1235 calccrc &= 0xff;
1236 calccrc = 0xff - calccrc;
1237
1238 char *crcStr = (crc == calccrc) ? "crc ok": "!crc";
1239
1240 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
1241 setDemodBuf(BitStream,64,idx);
1242 if (g_debugMode){
1243 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
1244 printDemodBuff();
1245 }
1246 return 1;
b3b70669 1247}
1e090a61 1248
1e090a61 1249//by marshmellow
1250//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1251//print full AWID Prox ID and some bit format details if found
1252int CmdFSKdemodAWID(const char *Cmd)
1253{
e0165dcf 1254 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1255 size_t size = getFromGraphBuf(BitStream);
1256 if (size==0) return 0;
1257
1258 //get binary from fsk wave
1259 int idx = AWIDdemodFSK(BitStream, &size);
1260 if (idx<=0){
1261 if (g_debugMode==1){
1262 if (idx == -1)
1263 PrintAndLog("DEBUG: Error - not enough samples");
1264 else if (idx == -2)
1265 PrintAndLog("DEBUG: Error - only noise found");
1266 else if (idx == -3)
1267 PrintAndLog("DEBUG: Error - problem during FSK demod");
1268 else if (idx == -4)
1269 PrintAndLog("DEBUG: Error - AWID preamble not found");
1270 else if (idx == -5)
1271 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1272 else
1273 PrintAndLog("DEBUG: Error %d",idx);
1274 }
1275 return 0;
1276 }
1277
1278 // Index map
1279 // 0 10 20 30 40 50 60
1280 // | | | | | | |
1281 // 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
1282 // -----------------------------------------------------------------------------
70459879 1283 // 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
e0165dcf 1284 // 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
1285 // |---26 bit---| |-----117----||-------------142-------------|
1286 // b = format bit len, o = odd parity of last 3 bits
1287 // f = facility code, c = card number
1288 // w = wiegand parity
1289 // (26 bit format shown)
1e090a61 1290
e0165dcf 1291 //get raw ID before removing parities
1292 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1293 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1294 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1295 setDemodBuf(BitStream,96,idx);
1296
1297 size = removeParity(BitStream, idx+8, 4, 1, 88);
1298 if (size != 66){
1299 if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
1300 return 0;
1301 }
1302 // ok valid card found!
1303
1304 // Index map
1305 // 0 10 20 30 40 50 60
1306 // | | | | | | |
1307 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1308 // -----------------------------------------------------------------------------
1309 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1310 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1311 // |26 bit| |-117--| |-----142------|
1312 // b = format bit len, o = odd parity of last 3 bits
1313 // f = facility code, c = card number
1314 // w = wiegand parity
1315 // (26 bit format shown)
1316
1317 uint32_t fc = 0;
1318 uint32_t cardnum = 0;
1319 uint32_t code1 = 0;
1320 uint32_t code2 = 0;
1321 uint8_t fmtLen = bytebits_to_byte(BitStream,8);
1322 if (fmtLen==26){
1323 fc = bytebits_to_byte(BitStream+9, 8);
1324 cardnum = bytebits_to_byte(BitStream+17, 16);
1325 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1326 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1327 } else {
1328 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1329 if (fmtLen>32){
1330 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1331 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1332 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1333 } else{
1334 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1335 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1336 }
1337 }
1338 if (g_debugMode){
1339 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1340 printDemodBuff();
1341 }
1342 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1343 return 1;
1e090a61 1344}
1345
1346//by marshmellow
1347//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1348//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1349int CmdFSKdemodPyramid(const char *Cmd)
1350{
e0165dcf 1351 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1352 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1353 size_t size = getFromGraphBuf(BitStream);
1354 if (size==0) return 0;
1355
1356 //get binary from fsk wave
1357 int idx = PyramiddemodFSK(BitStream, &size);
1358 if (idx < 0){
1359 if (g_debugMode==1){
1360 if (idx == -5)
1361 PrintAndLog("DEBUG: Error - not enough samples");
1362 else if (idx == -1)
1363 PrintAndLog("DEBUG: Error - only noise found");
1364 else if (idx == -2)
1365 PrintAndLog("DEBUG: Error - problem during FSK demod");
1366 else if (idx == -3)
1367 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1368 else if (idx == -4)
1369 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1370 else
1371 PrintAndLog("DEBUG: Error - idx: %d",idx);
1372 }
1373 return 0;
1374 }
1375 // Index map
1376 // 0 10 20 30 40 50 60
1377 // | | | | | | |
1378 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1379 // -----------------------------------------------------------------------------
1380 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1381 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1382
1383 // 64 70 80 90 100 110 120
1384 // | | | | | | |
1385 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1386 // -----------------------------------------------------------------------------
1387 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1388 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1389 // |---115---||---------71---------|
1390 // s = format start bit, o = odd parity of last 7 bits
1391 // f = facility code, c = card number
1392 // w = wiegand parity, x = extra space for other formats
1393 // p = unknown checksum
1394 // (26 bit format shown)
1395
1396 //get bytes for checksum calc
1397 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1398 uint8_t csBuff[14] = {0x00};
1399 for (uint8_t i = 0; i < 13; i++){
1400 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1401 }
1402 //check checksum calc
1403 //checksum calc thanks to ICEMAN!!
1404 uint32_t checkCS = CRC8Maxim(csBuff,13);
1405
1406 //get raw ID before removing parities
1407 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
1408 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
1409 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
1410 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
1411 setDemodBuf(BitStream,128,idx);
1412
1413 size = removeParity(BitStream, idx+8, 8, 1, 120);
1414 if (size != 105){
1415 if (g_debugMode==1)
1416 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
1417 return 0;
1418 }
1419
1420 // ok valid card found!
1421
1422 // Index map
1423 // 0 10 20 30 40 50 60 70
1424 // | | | | | | | |
1425 // 01234567890123456789012345678901234567890123456789012345678901234567890
1426 // -----------------------------------------------------------------------
1427 // 00000000000000000000000000000000000000000000000000000000000000000000000
1428 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1429
1430 // 71 80 90 100
1431 // | | | |
1432 // 1 2 34567890 1234567890123456 7 8901234
1433 // ---------------------------------------
1434 // 1 1 01110011 0000000001000110 0 1001010
1435 // s w ffffffff cccccccccccccccc w ppppppp
1436 // |--115-| |------71------|
1437 // s = format start bit, o = odd parity of last 7 bits
1438 // f = facility code, c = card number
1439 // w = wiegand parity, x = extra space for other formats
1440 // p = unknown checksum
1441 // (26 bit format shown)
1442
1443 //find start bit to get fmtLen
1444 int j;
1445 for (j=0; j<size; j++){
1446 if(BitStream[j]) break;
1447 }
1448 uint8_t fmtLen = size-j-8;
1449 uint32_t fc = 0;
1450 uint32_t cardnum = 0;
1451 uint32_t code1 = 0;
e0165dcf 1452 if (fmtLen==26){
1453 fc = bytebits_to_byte(BitStream+73, 8);
1454 cardnum = bytebits_to_byte(BitStream+81, 16);
1455 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1456 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);
1457 } else if (fmtLen==45){
1458 fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
1459 fc = bytebits_to_byte(BitStream+53, 10);
1460 cardnum = bytebits_to_byte(BitStream+63, 32);
1461 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1462 } else {
1463 cardnum = bytebits_to_byte(BitStream+81, 16);
1464 if (fmtLen>32){
1465 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1466 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1467 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1468 } else{
1469 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1470 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1471 }
1472 }
1473 if (checksum == checkCS)
1474 PrintAndLog("Checksum %02x passed", checksum);
1475 else
1476 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1477
1478 if (g_debugMode){
1479 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1480 printDemodBuff();
1481 }
1482 return 1;
1e090a61 1483}
1484
ad6219fc 1485// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
7f96433c 1486// 8 databits + 1 parity (1)
0df669a2 1487// CIITT 16 chksum
1488// NATIONAL CODE, ICAR database
ad6219fc 1489// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
0df669a2 1490// FLAG (animal/non-animal)
22a6a62f 1491/*
149238 IDbits
149310 country code
14941 extra app bit
149514 reserved bits
14961 animal bit
149716 ccitt CRC chksum over 64bit ID CODE.
149824 appli bits.
1499
ad6219fc 1500-- sample: 985121004515220 [ 37FF65B88EF94 ]
22a6a62f 1501*/
ad6219fc 1502int CmdFDXBdemodBI(const char *Cmd){
7f96433c 1503
1504 int invert = 1;
1505 int clk = 32;
1506 int errCnt = 0;
ad6219fc 1507 int maxErr = 0;
7f96433c 1508 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1509 size_t size = getFromGraphBuf(BitStream);
1510
ad6219fc 1511 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1512 if ( errCnt < 0 || errCnt > maxErr ) {
a71ece51 1513 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
0df669a2 1514 return 0;
1515 }
615f21dd 1516
ad6219fc 1517 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1518 if (errCnt < 0 || errCnt > maxErr ) {
7f96433c 1519 if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
0df669a2 1520 return 0;
7f96433c 1521 }
0df669a2 1522
ad6219fc 1523 int preambleIndex = FDXBdemodBI(BitStream, &size);
7f96433c 1524 if (preambleIndex < 0){
ad6219fc 1525 if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
7f96433c 1526 return 0;
1527 }
6426f6ba 1528 if (size != 128) {
1529 if (g_debugMode) PrintAndLog("Error incorrect data length found");
1530 return 0;
1531 }
0df669a2 1532
ad6219fc 1533 setDemodBuf(BitStream, 128, preambleIndex);
7f96433c 1534
b10a759f 1535 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
a71ece51 1536 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
b10a759f 1537 if ( size != 104 ) {
ad6219fc 1538 if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
1539 return 0;
0df669a2 1540 }
ad6219fc 1541 if (g_debugMode) {
1542 char *bin = sprint_bin_break(BitStream,size,16);
1543 PrintAndLog("DEBUG BinStream:\n%s",bin);
1544 }
1545 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
a71ece51 1546 if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
ad6219fc 1547
a71ece51 1548 //got a good demod
ad6219fc 1549 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1550 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1551 uint8_t dataBlockBit = BitStream[48];
1552 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1553 uint8_t animalBit = BitStream[63];
a71ece51 1554 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
ad6219fc 1555 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1556
a71ece51 1557 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
ad6219fc 1558 uint8_t raw[8];
1559 num_to_bytes(rawid, 8, raw);
a71ece51 1560
1561 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1562
1563 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1564 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
ad6219fc 1565 PrintAndLog("National Code: %012llu", NationalCode);
a71ece51 1566 PrintAndLog("CountryCode: %04u", countryCode);
ad6219fc 1567 PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
1568 PrintAndLog("reserved Code: %u", reservedCode);
1569 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
a71ece51 1570 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1571 PrintAndLog("Extended: 0x%X\n", extended);
ad6219fc 1572
615f21dd 1573 return 1;
1574}
1575
1576
e770c648 1577//by marshmellow
1578//attempt to psk1 demod graph buffer
4ac906d1 1579int PSKDemod(const char *Cmd, bool verbose)
e770c648 1580{
e0165dcf 1581 int invert=0;
1582 int clk=0;
1583 int maxErr=100;
1584 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1585 if (clk==1){
1586 invert=1;
1587 clk=0;
1588 }
1589 if (invert != 0 && invert != 1) {
24344f28 1590 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1591 return 0;
1592 }
1593 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1594 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1595 if (BitLen==0) return 0;
2eec55c8 1596 uint8_t carrier=countFC(BitStream, BitLen, 0);
e0165dcf 1597 if (carrier!=2 && carrier!=4 && carrier!=8){
1598 //invalid carrier
1599 return 0;
1600 }
6426f6ba 1601 if (g_debugMode){
1602 PrintAndLog("Carrier: rf/%d",carrier);
1603 }
e0165dcf 1604 int errCnt=0;
1605 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1606 if (errCnt > maxErr){
2767fc02 1607 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1608 return 0;
1609 }
1610 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
2767fc02 1611 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1612 return 0;
1613 }
2767fc02 1614 if (verbose || g_debugMode){
1615 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1616 if (errCnt>0){
2767fc02 1617 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1618 }
1619 }
1620 //prime demod buffer for output
1621 setDemodBuf(BitStream,BitLen,0);
1622 return 1;
4118b74d 1623}
e770c648 1624
4118b74d 1625// Indala 26 bit decode
1626// by marshmellow
1627// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1628int CmdIndalaDecode(const char *Cmd)
1629{
b4fb11ba 1630 int ans;
1631 if (strlen(Cmd)>0){
1632 ans = PSKDemod(Cmd, 0);
1633 } else{ //default to RF/32
1634 ans = PSKDemod("32", 0);
1635 }
4118b74d 1636
7a8a982b 1637 if (!ans){
ec75f5c1 1638 if (g_debugMode==1)
b4fb11ba 1639 PrintAndLog("Error1: %d",ans);
ba1a299c 1640 return 0;
1641 }
1642 uint8_t invert=0;
57c7b44b 1643 size_t size = DemodBufferLen;
1644 size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
6426f6ba 1645 if (startIdx < 1 || size > 224) {
ec75f5c1 1646 if (g_debugMode==1)
b4fb11ba 1647 PrintAndLog("Error2: %d",ans);
ba1a299c 1648 return -1;
1649 }
57c7b44b 1650 setDemodBuf(DemodBuffer, size, startIdx);
84871873 1651 if (invert)
b4fb11ba 1652 if (g_debugMode==1)
e0165dcf 1653 PrintAndLog("Had to invert bits");
ec75f5c1 1654
57c7b44b 1655 PrintAndLog("BitLen: %d",DemodBufferLen);
ba1a299c 1656 //convert UID to HEX
1657 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
57c7b44b 1658 uid1=bytebits_to_byte(DemodBuffer,32);
1659 uid2=bytebits_to_byte(DemodBuffer+32,32);
ba1a299c 1660 if (DemodBufferLen==64){
52f2df61 1661 PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2);
6426f6ba 1662 } else {
57c7b44b 1663 uid3=bytebits_to_byte(DemodBuffer+64,32);
1664 uid4=bytebits_to_byte(DemodBuffer+96,32);
1665 uid5=bytebits_to_byte(DemodBuffer+128,32);
1666 uid6=bytebits_to_byte(DemodBuffer+160,32);
1667 uid7=bytebits_to_byte(DemodBuffer+192,32);
1668 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",
52f2df61 1669 sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7);
ba1a299c 1670 }
b4fb11ba 1671 if (g_debugMode){
1672 PrintAndLog("DEBUG: printing demodbuffer:");
1673 printDemodBuff();
1674 }
ba1a299c 1675 return 1;
4118b74d 1676}
1677
411105e0 1678int CmdPSKNexWatch(const char *Cmd)
1679{
1680 if (!PSKDemod("", false)) return 0;
1681 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};
1682 size_t startIdx = 0, size = DemodBufferLen;
1683 bool invert = false;
1684 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1685 // if didn't find preamble try again inverting
1686 if (!PSKDemod("1", false)) return 0;
1687 size = DemodBufferLen;
1688 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1689 invert = true;
1690 }
1691 if (size != 128) return 0;
1692 setDemodBuf(DemodBuffer, size, startIdx+4);
1693 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1694 //get ID
1695 uint32_t ID = 0;
1696 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1697 for (uint8_t idx=0; idx<8; idx++){
1698 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1699 }
1700 }
1701 //parity check (TBD)
1702
1703 //checksum check (TBD)
1704
1705 //output
1706 PrintAndLog("NexWatch ID: %d", ID);
1707 if (invert){
1708 PrintAndLog("Had to Invert - probably NexKey");
1709 for (uint8_t idx=0; idx<size; idx++)
1710 DemodBuffer[idx] ^= 1;
1711 }
1712
1713 CmdPrintDemodBuff("x");
1714 return 1;
1715}
1716
04d2721b 1717// by marshmellow
e770c648 1718// takes 3 arguments - clock, invert, maxErr as integers
1719// attempts to demodulate nrz only
1720// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1721int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1722{
e0165dcf 1723 int invert=0;
1724 int clk=0;
1725 int maxErr=100;
1726 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1727 if (clk==1){
1728 invert=1;
1729 clk=0;
1730 }
1731 if (invert != 0 && invert != 1) {
1732 PrintAndLog("Invalid argument: %s", Cmd);
1733 return 0;
1734 }
1735 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1736 size_t BitLen = getFromGraphBuf(BitStream);
1737 if (BitLen==0) return 0;
1738 int errCnt=0;
6426f6ba 1739 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
e0165dcf 1740 if (errCnt > maxErr){
1741 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1742 return 0;
1743 }
2eec55c8 1744 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1745 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1746 return 0;
1747 }
1748 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1749 //prime demod buffer for output
1750 setDemodBuf(BitStream,BitLen,0);
1751
2767fc02 1752 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1753 if (verbose || g_debugMode) {
1754 PrintAndLog("NRZ demoded bitstream:");
1755 // Now output the bitstream to the scrollback by line of 16 bits
1756 printDemodBuff();
1757 }
1758 return 1;
b4a2fcf6 1759}
1760
1761int CmdNRZrawDemod(const char *Cmd)
1762{
e0165dcf 1763 char cmdp = param_getchar(Cmd, 0);
1764 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1765 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1766 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1767 PrintAndLog(" <invert>, 1 for invert output");
1768 PrintAndLog(" [set maximum allowed errors], default = 100.");
1769 PrintAndLog("");
1770 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1771 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1772 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1773 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1774 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");
1775 return 0;
1776 }
1777 return NRZrawDemod(Cmd, TRUE);
e770c648 1778}
1779
1780// by marshmellow
1781// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 1782// attempts to demodulate psk only
1783// prints binary found and saves in demodbuffer for further commands
e770c648 1784int CmdPSK1rawDemod(const char *Cmd)
4118b74d 1785{
e0165dcf 1786 int ans;
1787 char cmdp = param_getchar(Cmd, 0);
1788 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1789 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
1790 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1791 PrintAndLog(" <invert>, 1 for invert output");
1792 PrintAndLog(" [set maximum allowed errors], default = 100.");
1793 PrintAndLog("");
1794 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
1795 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1796 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1797 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
1798 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");
1799 return 0;
1800 }
1801 ans = PSKDemod(Cmd, TRUE);
1802 //output
1803 if (!ans){
1804 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1805 return 0;
1806 }
7a8a982b 1807
2767fc02 1808 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 1809 // Now output the bitstream to the scrollback by line of 16 bits
1810 printDemodBuff();
1811 return 1;
4118b74d 1812}
1813
04d2721b 1814// by marshmellow
19ff0210 1815// takes same args as cmdpsk1rawdemod
04d2721b 1816int CmdPSK2rawDemod(const char *Cmd)
1817{
e0165dcf 1818 int ans=0;
1819 char cmdp = param_getchar(Cmd, 0);
1820 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
1821 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
1822 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1823 PrintAndLog(" <invert>, 1 for invert output");
1824 PrintAndLog(" [set maximum allowed errors], default = 100.");
1825 PrintAndLog("");
1826 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
1827 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1828 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1829 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1830 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");
1831 return 0;
1832 }
1833 ans=PSKDemod(Cmd, TRUE);
1834 if (!ans){
1835 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1836 return 0;
1837 }
1838 psk1TOpsk2(DemodBuffer, DemodBufferLen);
1839 PrintAndLog("PSK2 demoded bitstream:");
1840 // Now output the bitstream to the scrollback by line of 16 bits
1841 printDemodBuff();
1842 return 1;
04d2721b 1843}
1844
19ff0210 1845// by marshmellow - combines all raw demod functions into one menu command
1846int CmdRawDemod(const char *Cmd)
1847{
1848 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
1849
23f0a7d8 1850 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
19ff0210 1851 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
b41534d1 1852 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
1853 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
19ff0210 1854 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
1855 PrintAndLog(" <options> see specific modulation help for optional parameters");
1856 PrintAndLog("");
1fbf8956 1857 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
19ff0210 1858 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
b41534d1 1859 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
19ff0210 1860 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
1861 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
1862 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
1863 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
1864 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
1865 return 0;
1866 }
1867 char cmdp2 = Cmd[1];
1868 int ans = 0;
1869 if (cmdp == 'f' && cmdp2 == 's'){
f8f894a5 1870 ans = CmdFSKrawdemod(Cmd+2);
b41534d1 1871 } else if(cmdp == 'a' && cmdp2 == 'b'){
f8f894a5 1872 ans = Cmdaskbiphdemod(Cmd+2);
19ff0210 1873 } else if(cmdp == 'a' && cmdp2 == 'm'){
f8f894a5 1874 ans = Cmdaskmandemod(Cmd+2);
19ff0210 1875 } else if(cmdp == 'a' && cmdp2 == 'r'){
f8f894a5 1876 ans = Cmdaskrawdemod(Cmd+2);
19ff0210 1877 } else if(cmdp == 'n' && cmdp2 == 'r'){
f8f894a5 1878 ans = CmdNRZrawDemod(Cmd+2);
19ff0210 1879 } else if(cmdp == 'p' && cmdp2 == '1'){
f8f894a5 1880 ans = CmdPSK1rawDemod(Cmd+2);
19ff0210 1881 } else if(cmdp == 'p' && cmdp2 == '2'){
f8f894a5 1882 ans = CmdPSK2rawDemod(Cmd+2);
19ff0210 1883 } else {
1884 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
1885 }
1886 return ans;
1887}
1888
7fe9b0b7 1889int CmdGrid(const char *Cmd)
1890{
e0165dcf 1891 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
1892 PlotGridXdefault= PlotGridX;
1893 PlotGridYdefault= PlotGridY;
1894 RepaintGraphWindow();
1895 return 0;
7fe9b0b7 1896}
1897
1898int CmdHexsamples(const char *Cmd)
1899{
e0165dcf 1900 int i, j;
1901 int requested = 0;
1902 int offset = 0;
1903 char string_buf[25];
1904 char* string_ptr = string_buf;
1905 uint8_t got[BIGBUF_SIZE];
1906
1907 sscanf(Cmd, "%i %i", &requested, &offset);
1908
1909 /* if no args send something */
1910 if (requested == 0) {
1911 requested = 8;
1912 }
1913 if (offset + requested > sizeof(got)) {
1914 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
1915 return 0;
1916 }
1917
1918 GetFromBigBuf(got,requested,offset);
1919 WaitForResponse(CMD_ACK,NULL);
1920
1921 i = 0;
1922 for (j = 0; j < requested; j++) {
1923 i++;
1924 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
1925 if (i == 8) {
1926 *(string_ptr - 1) = '\0'; // remove the trailing space
1927 PrintAndLog("%s", string_buf);
1928 string_buf[0] = '\0';
1929 string_ptr = string_buf;
1930 i = 0;
1931 }
1932 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
1933 *(string_ptr - 1) = '\0';
1934 PrintAndLog("%s", string_buf);
1935 string_buf[0] = '\0';
1936 }
1937 }
1938 return 0;
7fe9b0b7 1939}
1940
7fe9b0b7 1941int CmdHide(const char *Cmd)
1942{
e0165dcf 1943 HideGraphWindow();
1944 return 0;
7fe9b0b7 1945}
1946
78f5b1a7 1947//zero mean GraphBuffer
7fe9b0b7 1948int CmdHpf(const char *Cmd)
1949{
e0165dcf 1950 int i;
1951 int accum = 0;
7fe9b0b7 1952
e0165dcf 1953 for (i = 10; i < GraphTraceLen; ++i)
1954 accum += GraphBuffer[i];
1955 accum /= (GraphTraceLen - 10);
1956 for (i = 0; i < GraphTraceLen; ++i)
1957 GraphBuffer[i] -= accum;
7fe9b0b7 1958
e0165dcf 1959 RepaintGraphWindow();
1960 return 0;
7fe9b0b7 1961}
f6d9fb17
MHS		 1962
1963bool _headBit( BitstreamOut *stream)
1964{
1965 int bytepos = stream->position >> 3; // divide by 8
1966 int bitpos = (stream->position++) & 7; // mask out 00000111
1967 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
1968}
1969
1970uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
1971{
1972 int i;
1973 uint8_t val = 0;
1974 for(i =0 ; i < bits_per_sample; i++)
1975 {
1976 val |= (_headBit(b) << (7-i));
1977 }
1978 return val;
1979}
7fe9b0b7 1980
1fbf8956 1981int getSamples(const char *Cmd, bool silent)
7fe9b0b7 1982{
e0165dcf 1983 //If we get all but the last byte in bigbuf,
1984 // we don't have to worry about remaining trash
1985 // in the last byte in case the bits-per-sample
1986 // does not line up on byte boundaries
1987
1988 uint8_t got[BIGBUF_SIZE-1] = { 0 };
1989
1990 int n = strtol(Cmd, NULL, 0);
1991
52f2df61 1992 if ( n == 0 || n > sizeof(got))
e0165dcf 1993 n = sizeof(got);
1994
1995 PrintAndLog("Reading %d bytes from device memory\n", n);
1996 GetFromBigBuf(got,n,0);
1997 PrintAndLog("Data fetched");
1998 UsbCommand response;
c188b1b9 1999 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2000 PrintAndLog("timeout while waiting for reply.");
2001 return 1;
2002 }
2003
e0165dcf 2004 uint8_t bits_per_sample = 8;
2005
2006 //Old devices without this feature would send 0 at arg[0]
2007 if(response.arg[0] > 0)
2008 {
2009 sample_config *sc = (sample_config *) response.d.asBytes;
52f2df61 2010 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
e0165dcf 2011 bits_per_sample = sc->bits_per_sample;
2012 }
2013 if(bits_per_sample < 8)
2014 {
2015 PrintAndLog("Unpacking...");
2016 BitstreamOut bout = { got, bits_per_sample * n, 0};
2017 int j =0;
e6432f05 2018 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2019 uint8_t sample = getByte(bits_per_sample, &bout);
2020 GraphBuffer[j] = ((int) sample )- 128;
2021 }
2022 GraphTraceLen = j;
2023 PrintAndLog("Unpacked %d samples" , j );
2024 }else
2025 {
2026 for (int j = 0; j < n; j++) {
2027 GraphBuffer[j] = ((int)got[j]) - 128;
2028 }
2029 GraphTraceLen = n;
2030 }
2031
2032 RepaintGraphWindow();
2033 return 0;
1fbf8956 2034}
2035
2036int CmdSamples(const char *Cmd)
2037{
e0165dcf 2038 return getSamples(Cmd, false);
7fe9b0b7 2039}
2040
d6a120a2
MHS		 2041int CmdTuneSamples(const char *Cmd)
2042{
3aa4014b 2043 int timeout = 0;
2044 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2045
c188b1b9 2046 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2047 clearCommandBuffer();
3aa4014b 2048 SendCommand(&c);
3aa4014b 2049 UsbCommand resp;
2050 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
2051 timeout++;
2052 printf(".");
2053 if (timeout > 7) {
2054 PrintAndLog("\nNo response from Proxmark. Aborting...");
2055 return 1;
2056 }
2057 }
2058
2059 int peakv, peakf;
2060 int vLf125, vLf134, vHf;
2061 vLf125 = resp.arg[0] & 0xffff;
2062 vLf134 = resp.arg[0] >> 16;
2063 vHf = resp.arg[1] & 0xffff;;
2064 peakf = resp.arg[2] & 0xffff;
2065 peakv = resp.arg[2] >> 16;
2066 PrintAndLog("");
2067 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2068 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2069 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2070 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2071
2767fc02 2072 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2073 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2074 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2075 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
0d0d0499 2076
2077 if (peakv < LF_UNUSABLE_V)
3aa4014b 2078 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2079 else if (peakv < LF_MARGINAL_V)
3aa4014b 2080 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2081 if (vHf < HF_UNUSABLE_V)
3aa4014b 2082 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2083 else if (vHf < HF_MARGINAL_V)
3aa4014b 2084 PrintAndLog("# Your HF antenna is marginal.");
2085
0d0d0499 2086 if (peakv >= LF_UNUSABLE_V) {
2087 for (int i = 0; i < 256; i++) {
2088 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2089 }
2090 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2091 PrintAndLog("\n");
2092 GraphTraceLen = 256;
2093 ShowGraphWindow();
abd16c45 2094 RepaintGraphWindow();
ba1a299c 2095 }
b4fb11ba 2096 return 0;
d6a120a2
MHS		 2097}
2098
3aa4014b 2099
7fe9b0b7 2100int CmdLoad(const char *Cmd)
2101{
e0165dcf 2102 char filename[FILE_PATH_SIZE] = {0x00};
2103 int len = 0;
b915fda3 2104
e0165dcf 2105 len = strlen(Cmd);
2106 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2107 memcpy(filename, Cmd, len);
b915fda3 2108
e0165dcf 2109 FILE *f = fopen(filename, "r");
2110 if (!f) {
c188b1b9 2111 PrintAndLog("couldn't open '%s'", filename);
e0165dcf 2112 return 0;
2113 }
2114
2115 GraphTraceLen = 0;
2116 char line[80];
2117 while (fgets(line, sizeof (line), f)) {
2118 GraphBuffer[GraphTraceLen] = atoi(line);
2119 GraphTraceLen++;
2120 }
2121 fclose(f);
2122 PrintAndLog("loaded %d samples", GraphTraceLen);
2123 RepaintGraphWindow();
2124 return 0;
7fe9b0b7 2125}
2126
2127int CmdLtrim(const char *Cmd)
2128{
e0165dcf 2129 int ds = atoi(Cmd);
c188b1b9 2130
2131 if (GraphTraceLen <= 0) return 0;
2132
e0165dcf 2133 for (int i = ds; i < GraphTraceLen; ++i)
2134 GraphBuffer[i-ds] = GraphBuffer[i];
7fe9b0b7 2135
c188b1b9 2136 GraphTraceLen -= ds;
e0165dcf 2137 RepaintGraphWindow();
2138 return 0;
7fe9b0b7 2139}
ec75f5c1 2140
2141// trim graph to input argument length
9ec1416a 2142int CmdRtrim(const char *Cmd)
2143{
e0165dcf 2144 int ds = atoi(Cmd);
e0165dcf 2145 GraphTraceLen = ds;
e0165dcf 2146 RepaintGraphWindow();
2147 return 0;
9ec1416a 2148}
7fe9b0b7 2149
7fe9b0b7 2150int CmdNorm(const char *Cmd)
2151{
e0165dcf 2152 int i;
2153 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2154
e0165dcf 2155 for (i = 10; i < GraphTraceLen; ++i) {
2156 if (GraphBuffer[i] > max)
2157 max = GraphBuffer[i];
2158 if (GraphBuffer[i] < min)
2159 min = GraphBuffer[i];
2160 }
7fe9b0b7 2161
e0165dcf 2162 if (max != min) {
2163 for (i = 0; i < GraphTraceLen; ++i) {
ba1a299c 2164 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
e0165dcf 2165 (max - min);
ba1a299c 2166 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2167 }
2168 }
2169 RepaintGraphWindow();
2170 return 0;
7fe9b0b7 2171}
2172
2173int CmdPlot(const char *Cmd)
2174{
e0165dcf 2175 ShowGraphWindow();
2176 return 0;
7fe9b0b7 2177}
2178
2179int CmdSave(const char *Cmd)
2180{
e0165dcf 2181 char filename[FILE_PATH_SIZE] = {0x00};
2182 int len = 0;
b915fda3 2183
e0165dcf 2184 len = strlen(Cmd);
2185 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2186 memcpy(filename, Cmd, len);
2187
b915fda3 2188
e0165dcf 2189 FILE *f = fopen(filename, "w");
2190 if(!f) {
2191 PrintAndLog("couldn't open '%s'", filename);
2192 return 0;
2193 }
2194 int i;
2195 for (i = 0; i < GraphTraceLen; i++) {
2196 fprintf(f, "%d\n", GraphBuffer[i]);
2197 }
2198 fclose(f);
2199 PrintAndLog("saved to '%s'", Cmd);
2200 return 0;
7fe9b0b7 2201}
2202
2203int CmdScale(const char *Cmd)
2204{
e0165dcf 2205 CursorScaleFactor = atoi(Cmd);
2206 if (CursorScaleFactor == 0) {
2207 PrintAndLog("bad, can't have zero scale");
2208 CursorScaleFactor = 1;
2209 }
2210 RepaintGraphWindow();
2211 return 0;
7fe9b0b7 2212}
2213
d51b2eda
MHS		 2214int CmdDirectionalThreshold(const char *Cmd)
2215{
e0165dcf 2216 int8_t upThres = param_get8(Cmd, 0);
2217 int8_t downThres = param_get8(Cmd, 1);
2218
2219 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2220
2221 int lastValue = GraphBuffer[0];
2222 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2223
2224 for (int i = 1; i < GraphTraceLen; ++i) {
2225 // Apply first threshold to samples heading up
2226 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2227 {
2228 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2229 GraphBuffer[i] = 1;
2230 }
2231 // Apply second threshold to samples heading down
2232 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2233 {
2234 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2235 GraphBuffer[i] = -1;
2236 }
2237 else
2238 {
2239 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2240 GraphBuffer[i] = GraphBuffer[i-1];
2241
2242 }
2243 }
2244 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2245 RepaintGraphWindow();
2246 return 0;
d51b2eda
MHS		 2247}
2248
7fe9b0b7 2249int CmdZerocrossings(const char *Cmd)
2250{
e0165dcf 2251 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2252 CmdHpf("");
2253
2254 int sign = 1;
2255 int zc = 0;
2256 int lastZc = 0;
2257
2258 for (int i = 0; i < GraphTraceLen; ++i) {
2259 if (GraphBuffer[i] * sign >= 0) {
2260 // No change in sign, reproduce the previous sample count.
2261 zc++;
2262 GraphBuffer[i] = lastZc;
2263 } else {
2264 // Change in sign, reset the sample count.
2265 sign = -sign;
2266 GraphBuffer[i] = lastZc;
2267 if (sign > 0) {
2268 lastZc = zc;
2269 zc = 0;
2270 }
2271 }
2272 }
2273
2274 RepaintGraphWindow();
2275 return 0;
7fe9b0b7 2276}
2277
0de8e387 2278int usage_data_bin2hex(){
2279 PrintAndLog("Usage: data bin2hex <binary_digits>");
2280 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
2281 return 0;
2282}
2283
2284/**
2285 * @brief Utility for conversion via cmdline.
2286 * @param Cmd
2287 * @return
2288 */
2289int Cmdbin2hex(const char *Cmd)
2290{
2291 int bg =0, en =0;
2292 if(param_getptr(Cmd, &bg, &en, 0))
2293 {
2294 return usage_data_bin2hex();
2295 }
2296 //Number of digits supplied as argument
2297 size_t length = en - bg +1;
2298 size_t bytelen = (length+7) / 8;
2299 uint8_t* arr = (uint8_t *) malloc(bytelen);
2300 memset(arr, 0, bytelen);
2301 BitstreamOut bout = { arr, 0, 0 };
2302
2303 for(; bg <= en ;bg++)
2304 {
2305 char c = Cmd[bg];
2306 if( c == '1') pushBit(&bout, 1);
2307 else if( c == '0') pushBit(&bout, 0);
2308 else PrintAndLog("Ignoring '%c'", c);
2309 }
2310
2311 if(bout.numbits % 8 != 0)
2312 {
2313 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2314 }
2315
2316 //Uses printf instead of PrintAndLog since the latter
2317 // adds linebreaks to each printout - this way was more convenient since we don't have to
2318 // allocate a string and write to that first...
2319 for(size_t x = 0; x < bytelen ; x++)
2320 {
2321 printf("%02X", arr[x]);
2322 }
2323 printf("\n");
2324 free(arr);
2325 return 0;
2326}
2327
2328int usage_data_hex2bin(){
f4d0ffd1 2329 PrintAndLog("Usage: data hex2bin <hex_digits>");
0de8e387 2330 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
2331 return 0;
0de8e387 2332}
2333
2334int Cmdhex2bin(const char *Cmd)
2335{
2336 int bg =0, en =0;
f4d0ffd1 2337 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
0de8e387 2338
2339 while(bg <= en )
2340 {
2341 char x = Cmd[bg++];
2342 // capitalize
2343 if (x >= 'a' && x <= 'f')
2344 x -= 32;
2345 // convert to numeric value
2346 if (x >= '0' && x <= '9')
2347 x -= '0';
2348 else if (x >= 'A' && x <= 'F')
2349 x -= 'A' - 10;
2350 else
2351 continue;
2352
2353 //Uses printf instead of PrintAndLog since the latter
2354 // adds linebreaks to each printout - this way was more convenient since we don't have to
2355 // allocate a string and write to that first...
2356
2357 for(int i= 0 ; i < 4 ; ++i)
2358 printf("%d",(x >> (3 - i)) & 1);
2359 }
2360 printf("\n");
2361
2362 return 0;
2363}
2364
ba1a299c 2365static command_t CommandTable[] =
7fe9b0b7 2366{
e0165dcf 2367 {"help", CmdHelp, 1, "This help"},
49bbc60a 2368 {"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 2369 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2370 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
70459879 2371 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
e0165dcf 2372 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2373 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
0de8e387 2374 {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
e0165dcf 2375 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
e0165dcf 2376 {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
2377 {"dec", CmdDec, 1, "Decimate samples"},
2378 {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
ad6219fc 2379 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2380 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2381 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2382 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2383 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2384 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2385 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2386 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2387 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2388 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
0de8e387 2389 {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2390 {"hide", CmdHide, 1, "Hide graph window"},
2391 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2392 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2393 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2394 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
fef74fdc 2395 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2396 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2397 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
bf32dd92 2398 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2399 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2400 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2401 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2402 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2403 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2404 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
a126332a 2405 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
e0165dcf 2406 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2407 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2408 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2409 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2410 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2411 {NULL, NULL, 0, NULL}
7fe9b0b7 2412};
2413
2414int CmdData(const char *Cmd)
2415{
e0165dcf 2416 CmdsParse(CommandTable, Cmd);
2417 return 0;
7fe9b0b7 2418}
2419
2420int CmdHelp(const char *Cmd)
2421{
e0165dcf 2422 CmdsHelp(CommandTable);
2423 return 0;
7fe9b0b7 2424}
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