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Merge pull request #226 from pwpiwi/fix_defines
[proxmark3-svn] / client / cmddata.c
CommitLineData
a553f267 1//-----------------------------------------------------------------------------
2// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3//
4// This code is licensed to you under the terms of the GNU GPL, version 2 or,
5// at your option, any later version. See the LICENSE.txt file for the text of
6// the license.
7//-----------------------------------------------------------------------------
8// Data and Graph commands
9//-----------------------------------------------------------------------------
10
6923d3f1 11#include <stdio.h> // also included in util.h
12#include <string.h> // also included in util.h
43534cba 13#include <inttypes.h>
6923d3f1 14#include <limits.h> // for CmdNorm INT_MIN && INT_MAX
15#include "data.h" // also included in util.h
16#include "cmddata.h"
d51b2eda 17#include "util.h"
7fe9b0b7 18#include "cmdmain.h"
6923d3f1 19#include "proxmark3.h"
20#include "ui.h" // for show graph controls
21#include "graph.h" // for graph data
22#include "cmdparser.h"// already included in cmdmain.h
23#include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
24#include "lfdemod.h" // for demod code
25#include "crc.h" // for pyramid checksum maxim
26#include "crc16.h" // for FDXB demod checksum
27#include "loclass/cipherutils.h" // for decimating samples in getsamples
31abe49f 28
4118b74d 29uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
b362de62 30uint8_t g_debugMode=0;
31size_t DemodBufferLen=0;
7fe9b0b7 32static int CmdHelp(const char *Cmd);
33
4118b74d 34//set the demod buffer with given array of binary (one bit per byte)
35//by marshmellow
ec75f5c1 36void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
4118b74d 37{
13d77ef9 38 if (buff == NULL)
39 return;
40
41 if ( size >= MAX_DEMOD_BUF_LEN)
42 size = MAX_DEMOD_BUF_LEN;
43
ec75f5c1 44 size_t i = 0;
8e2e6c8e 45 for (; i < size; i++){
ec75f5c1 46 DemodBuffer[i]=buff[startIdx++];
ba1a299c 47 }
48 DemodBufferLen=size;
49 return;
4118b74d 50}
51
ec75f5c1 52int CmdSetDebugMode(const char *Cmd)
53{
e0165dcf 54 int demod=0;
55 sscanf(Cmd, "%i", &demod);
56 g_debugMode=(uint8_t)demod;
57 return 1;
ec75f5c1 58}
59
979bba37 60int usage_data_printdemodbuf(){
ace26dbd 61 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
979bba37 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");
ace26dbd 66 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
979bba37 67 return 0;
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{
979bba37 88 char hex[512]={0x00};
89 bool hexMode = false;
90 bool errors = false;
ace26dbd 91 uint32_t offset = 0; //could be size_t but no param_get16...
92 uint32_t length = 512;
979bba37 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':
ace26dbd 108 offset = param_get32ex(Cmd, cmdp+1, 0, 10);
979bba37 109 if (!offset) errors = true;
110 cmdp += 2;
111 break;
ace26dbd 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;
979bba37 118 default:
119 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
120 errors = true;
121 break;
122 }
123 if(errors) break;
e0165dcf 124 }
979bba37 125 //Validations
126 if(errors) return usage_data_printdemodbuf();
ace26dbd 127 length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
128 int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
979bba37 129
130 if (hexMode){
185e038c 131 char *buf = (char *) (DemodBuffer + offset);
ace26dbd 132 numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
979bba37 133 numBits = binarraytohex(hex, buf, numBits);
e0165dcf 134 if (numBits==0) return 0;
979bba37 135 PrintAndLog("DemodBuffer: %s",hex);
e0165dcf 136 } else {
709665b5 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
43534cba 175 PrintAndLog("\nEM TAG ID : %06X%016" PRIX64, hi, id);
e0165dcf 176 } else{
177 //output 40 bit em id
43534cba 178 PrintAndLog("\nEM TAG ID : %010" PRIX64, id);
e0165dcf 179 PrintAndLog("\nPossible de-scramble patterns");
4913be92 180 PrintAndLog("Unique TAG ID : %010" PRIX64, id2lo);
e0165dcf 181 PrintAndLog("HoneyWell IdentKey {");
43534cba 182 PrintAndLog("DEZ 8 : %08" PRIu64,id & 0xFFFFFF);
183 PrintAndLog("DEZ 10 : %010" PRIu64,id & 0xFFFFFFFF);
184 PrintAndLog("DEZ 5.5 : %05lld.%05" PRIu64,(id>>16LL) & 0xFFFF,(id & 0xFFFF));
185 PrintAndLog("DEZ 3.5A : %03lld.%05" PRIu64,(id>>32ll),(id & 0xFFFF));
186 PrintAndLog("DEZ 3.5B : %03lld.%05" PRIu64,(id & 0xFF000000) >> 24,(id & 0xFFFF));
187 PrintAndLog("DEZ 3.5C : %03lld.%05" PRIu64,(id & 0xFF0000) >> 16,(id & 0xFFFF));
188 PrintAndLog("DEZ 14/IK2 : %014" PRIu64,id);
189 PrintAndLog("DEZ 15/IK3 : %015" PRIu64,id2lo);
190 PrintAndLog("DEZ 20/ZK : %02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64,
e0165dcf 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;
43534cba 203 PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64 "",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
204 PrintAndLog("Pattern Paxton : %" PRIu64 " [0x%" PRIX64 "]", 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{
d1869c33 280 bool st = TRUE;
281 if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
fef74fdc 282 return AskEm410xDecode(verbose, hi, lo);
283}
284
e888ed8e 285//by marshmellow
e770c648 286//takes 3 arguments - clock, invert and maxErr as integers
287//attempts to demodulate ask while decoding manchester
288//prints binary found and saves in graphbuffer for further commands
289int CmdAskEM410xDemod(const char *Cmd)
290{
e0165dcf 291 char cmdp = param_getchar(Cmd, 0);
292 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
293 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
294 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
295 PrintAndLog(" <invert>, 1 for invert output");
296 PrintAndLog(" [set maximum allowed errors], default = 100.");
297 PrintAndLog("");
298 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
299 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
300 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
301 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
302 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");
303 return 0;
304 }
e0165dcf 305 uint64_t lo = 0;
fef74fdc 306 uint32_t hi = 0;
307 return AskEm410xDemod(Cmd, &hi, &lo, true);
e770c648 308}
309
fef74fdc 310//by marshmellow
311//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
312// (amp may not be needed anymore)
313//verbose will print results and demoding messages
314//emSearch will auto search for EM410x format in bitstream
315//askType switches decode: ask/raw = 0, ask/manchester = 1
d1869c33 316int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
e0165dcf 317 int invert=0;
318 int clk=0;
319 int maxErr=100;
fef74fdc 320 int maxLen=0;
01d0f8ae 321 uint8_t askamp = 0;
fef74fdc 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);
ace26dbd 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 }
334 size_t BitLen = getFromGraphBuf(BitStream);
2767fc02 335 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
d1869c33 336 if (BitLen < 255) return 0;
337 if (maxLen < BitLen && maxLen != 0) BitLen = maxLen;
338 int foundclk = 0;
01d0f8ae 339 //amp before ST check
340 if (amp == 'a' || amp == 'A') {
341 askAmp(BitStream, BitLen);
342 }
d1869c33 343 bool st = false;
ab812dfa 344 size_t ststart = 0, stend = 0;
345 if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend);
d1869c33 346 if (st) {
347 *stCheck = st;
348 clk = (clk == 0) ? foundclk : clk;
ab812dfa 349 CursorCPos = ststart;
350 CursorDPos = stend;
f75b313b 351 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers");
d1869c33 352 }
01d0f8ae 353 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType);
fef74fdc 354 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 355 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 356 return 0;
357 }
d1869c33 358 if (errCnt > maxErr){
2767fc02 359 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
360 return 0;
361 }
362 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 363
364 //output
e0165dcf 365 setDemodBuf(BitStream,BitLen,0);
fef74fdc 366 if (verbose || g_debugMode){
367 if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
8e2e6c8e 368 if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
369 else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 370 // Now output the bitstream to the scrollback by line of 16 bits
371 printDemodBuff();
372
373 }
374 uint64_t lo = 0;
375 uint32_t hi = 0;
e0165dcf 376 if (emSearch){
fef74fdc 377 AskEm410xDecode(true, &hi, &lo);
e0165dcf 378 }
379 return 1;
eb191de6 380}
d1869c33 381int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
382 bool st = false;
383 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
384}
eb191de6 385
4ac906d1 386//by marshmellow
fef74fdc 387//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 388//attempts to demodulate ask while decoding manchester
389//prints binary found and saves in graphbuffer for further commands
390int Cmdaskmandemod(const char *Cmd)
391{
e0165dcf 392 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 393 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') {
d1869c33 394 PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
395 PrintAndLog(" ['s'] optional, check for Sequence Terminator");
fef74fdc 396 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
397 PrintAndLog(" <invert>, 1 to invert output");
398 PrintAndLog(" [set maximum allowed errors], default = 100");
399 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
400 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
e0165dcf 401 PrintAndLog("");
402 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
403 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
404 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
405 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
406 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");
407 return 0;
408 }
d1869c33 409 bool st = TRUE;
410 if (Cmd[0]=='s')
411 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
412 else if (Cmd[1] == 's')
413 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
414 else
415 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 416}
417
eb191de6 418//by marshmellow
d5a72d2f 419//manchester decode
eb191de6 420//stricktly take 10 and 01 and convert to 0 and 1
421int Cmdmandecoderaw(const char *Cmd)
422{
e0165dcf 423 int i =0;
424 int errCnt=0;
425 size_t size=0;
fef74fdc 426 int invert=0;
6ac4cb27 427 int maxErr = 20;
e0165dcf 428 char cmdp = param_getchar(Cmd, 0);
1f918317 429 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
fef74fdc 430 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
e0165dcf 431 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
432 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
fef74fdc 433 PrintAndLog(" [invert] invert output");
1f918317 434 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
e0165dcf 435 PrintAndLog("");
436 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
437 return 0;
438 }
439 if (DemodBufferLen==0) return 0;
440 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
441 int high=0,low=0;
442 for (;i<DemodBufferLen;++i){
443 if (DemodBuffer[i]>high) high=DemodBuffer[i];
444 else if(DemodBuffer[i]<low) low=DemodBuffer[i];
445 BitStream[i]=DemodBuffer[i];
446 }
1f918317 447 if (high>7 || low <0 ){
2767fc02 448 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 449 return 0;
450 }
1f918317 451
fef74fdc 452 sscanf(Cmd, "%i %i", &invert, &maxErr);
e0165dcf 453 size=i;
fef74fdc 454 errCnt=manrawdecode(BitStream, &size, invert);
e0165dcf 455 if (errCnt>=maxErr){
456 PrintAndLog("Too many errors: %d",errCnt);
457 return 0;
458 }
459 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 460 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
e0165dcf 461 if (errCnt==0){
462 uint64_t id = 0;
463 uint32_t hi = 0;
464 size_t idx=0;
465 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
466 //need to adjust to set bitstream back to manchester encoded data
467 //setDemodBuf(BitStream, size, idx);
468
469 printEM410x(hi, id);
470 }
471 }
472 return 1;
d5a72d2f 473}
474
475//by marshmellow
476//biphase decode
477//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 478//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
479// and "invert" default = 0 if 1 it will invert output
2767fc02 480// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 481int CmdBiphaseDecodeRaw(const char *Cmd)
482{
ba1a299c 483 size_t size=0;
b41534d1 484 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 485 char cmdp = param_getchar(Cmd, 0);
486 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') {
b41534d1 487 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
488 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
b4fb11ba 489 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
e0165dcf 490 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
b4fb11ba 491 PrintAndLog("");
492 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
493 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
b41534d1 494 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
b4fb11ba 495 PrintAndLog("");
496 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
497 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
498 return 0;
499 }
b41534d1 500 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
501 if (DemodBufferLen==0){
502 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 503 return 0;
504 }
b41534d1 505 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
506 memcpy(BitStream, DemodBuffer, DemodBufferLen);
507 size = DemodBufferLen;
1e090a61 508 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 509 if (errCnt<0){
510 PrintAndLog("Error during decode:%d", errCnt);
511 return 0;
512 }
513 if (errCnt>maxErr){
b4fb11ba 514 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
515 return 0;
516 }
b41534d1 517
518 if (errCnt>0){
2767fc02 519 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
b41534d1 520 }
521 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 522 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 523
524 if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 525 return 1;
eb191de6 526}
527
b41534d1 528//by marshmellow
529// - ASK Demod then Biphase decode GraphBuffer samples
530int ASKbiphaseDemod(const char *Cmd, bool verbose)
531{
532 //ask raw demod GraphBuffer first
c7d67212 533 int offset=0, clk=0, invert=0, maxErr=0;
534 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
b41534d1 535
8e2e6c8e 536 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
537 size_t size = getFromGraphBuf(BitStream);
fd227f4e 538 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
c7d67212 539 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
8e2e6c8e 540 if ( errCnt < 0 || errCnt > maxErr ) {
541 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
542 return 0;
543 }
544
545 //attempt to Biphase decode BitStream
546 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 547 if (errCnt < 0){
548 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
549 return 0;
550 }
551 if (errCnt > maxErr) {
552 if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt);
553 return 0;
554 }
555 //success set DemodBuffer and return
556 setDemodBuf(BitStream, size, 0);
557 if (g_debugMode || verbose){
8e2e6c8e 558 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 559 printDemodBuff();
560 }
561 return 1;
562}
563//by marshmellow - see ASKbiphaseDemod
564int Cmdaskbiphdemod(const char *Cmd)
565{
e0165dcf 566 char cmdp = param_getchar(Cmd, 0);
fef74fdc 567 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
568 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
e0165dcf 569 PrintAndLog(" [offset], offset to begin biphase, default=0");
570 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
571 PrintAndLog(" <invert>, 1 to invert output");
572 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 573 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
e0165dcf 574 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
575 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
576 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
577 PrintAndLog(" NOTE: any other arg must have previous args set to work");
578 PrintAndLog("");
579 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
580 PrintAndLog("");
fef74fdc 581 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
582 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
583 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
584 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
585 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
586 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");
587 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 588 return 0;
589 }
590 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 591}
592
8d960002 593//by marshmellow
594//attempts to demodulate and identify a G_Prox_II verex/chubb card
595//WARNING: if it fails during some points it will destroy the DemodBuffer data
596// but will leave the GraphBuffer intact.
597//if successful it will push askraw data back to demod buffer ready for emulation
598int CmdG_Prox_II_Demod(const char *Cmd)
599{
e0165dcf 600 if (!ASKbiphaseDemod(Cmd, FALSE)){
88e85bde 601 if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try");
e0165dcf 602 return 0;
603 }
604 size_t size = DemodBufferLen;
605 //call lfdemod.c demod for gProxII
606 int ans = gProxII_Demod(DemodBuffer, &size);
607 if (ans < 0){
608 if (g_debugMode) PrintAndLog("Error gProxII_Demod");
609 return 0;
610 }
88e85bde 611 //got a good demod of 96 bits
31e8a4f2 612 uint8_t ByteStream[8] = {0x00};
e0165dcf 613 uint8_t xorKey=0;
88e85bde 614 size_t startIdx = ans + 6; //start after 6 bit preamble
615
616 uint8_t bits_no_spacer[90];
617 //so as to not mess with raw DemodBuffer copy to a new sample array
618 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
619 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
620 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
621 if (bitLen != 72) {
622 if (g_debugMode) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
623 return 0;
e0165dcf 624 }
88e85bde 625 // get key and then get all 8 bytes of payload decoded
626 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
627 for (size_t idx = 0; idx < 8; idx++) {
628 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
629 if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
e0165dcf 630 }
88e85bde 631 //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
e0165dcf 632 //
633 uint8_t fmtLen = ByteStream[0]>>2;
634 uint32_t FC = 0;
635 uint32_t Card = 0;
88e85bde 636 //get raw 96 bits to print
e0165dcf 637 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
638 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
639 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
640
641 if (fmtLen==36){
642 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
643 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
88e85bde 644 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
e0165dcf 645 } else if(fmtLen==26){
646 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
647 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
88e85bde 648 PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
e0165dcf 649 } else {
d1869c33 650 PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
31e8a4f2 651 PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8));
e0165dcf 652 }
653 PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
654 setDemodBuf(DemodBuffer+ans, 96, 0);
655 return 1;
8d960002 656}
657
415274a7 658//by marshmellow
659//see ASKDemod for what args are accepted
660int CmdVikingDemod(const char *Cmd)
661{
662 if (!ASKDemod(Cmd, false, false, 1)) {
663 if (g_debugMode) PrintAndLog("ASKDemod failed");
664 return 0;
665 }
666 size_t size = DemodBufferLen;
f6650679 667 //call lfdemod.c demod for Viking
415274a7 668 int ans = VikingDemod_AM(DemodBuffer, &size);
669 if (ans < 0) {
14331320 670 if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
415274a7 671 return 0;
672 }
673 //got a good demod
674 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
675 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
676 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
709665b5 677 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
d1869c33 678 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, (unsigned int) checksum);
415274a7 679 PrintAndLog("Raw: %08X%08X", raw1,raw2);
680 setDemodBuf(DemodBuffer+ans, 64, 0);
681 return 1;
682}
683
fef74fdc 684//by marshmellow - see ASKDemod
4ac906d1 685int Cmdaskrawdemod(const char *Cmd)
686{
e0165dcf 687 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 688 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') {
fef74fdc 689 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
e0165dcf 690 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
691 PrintAndLog(" <invert>, 1 to invert output");
692 PrintAndLog(" [set maximum allowed errors], default = 100");
fef74fdc 693 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
e0165dcf 694 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
695 PrintAndLog("");
fef74fdc 696 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
697 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
698 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
699 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
700 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
701 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");
702 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 703 return 0;
704 }
fef74fdc 705 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 706}
707
73d04bb4 708int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 709{
e0165dcf 710 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
711 size_t Correlation = 0;
712 int maxSum = 0;
713 int lastMax = 0;
714 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
715 for (int i = 0; i < GraphTraceLen - window; ++i) {
716 int sum = 0;
717 for (int j = 0; j < window; ++j) {
718 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
719 }
720 CorrelBuffer[i] = sum;
721 if (sum >= maxSum-100 && sum <= maxSum+100){
722 //another max
723 Correlation = i-lastMax;
724 lastMax = i;
725 if (sum > maxSum) maxSum = sum;
726 } else if (sum > maxSum){
727 maxSum=sum;
728 lastMax = i;
729 }
730 }
731 if (Correlation==0){
732 //try again with wider margin
733 for (int i = 0; i < GraphTraceLen - window; i++){
734 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
735 //another max
736 Correlation = i-lastMax;
737 lastMax = i;
738 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
739 }
740 }
741 }
742 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
743
744 if (SaveGrph){
745 GraphTraceLen = GraphTraceLen - window;
746 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
747 RepaintGraphWindow();
748 }
749 return Correlation;
73d04bb4 750}
7fe9b0b7 751
9f7bbd24 752int usage_data_autocorr(void)
753{
e0165dcf 754 //print help
755 PrintAndLog("Usage: data autocorr [window] [g]");
756 PrintAndLog("Options: ");
757 PrintAndLog(" h This help");
758 PrintAndLog(" [window] window length for correlation - default = 4000");
759 PrintAndLog(" g save back to GraphBuffer (overwrite)");
760 return 0;
9f7bbd24 761}
762
73d04bb4 763int CmdAutoCorr(const char *Cmd)
764{
e0165dcf 765 char cmdp = param_getchar(Cmd, 0);
766 if (cmdp == 'h' || cmdp == 'H')
767 return usage_data_autocorr();
768 int window = 4000; //set default
769 char grph=0;
770 bool updateGrph = FALSE;
771 sscanf(Cmd, "%i %c", &window, &grph);
772
773 if (window >= GraphTraceLen) {
774 PrintAndLog("window must be smaller than trace (%d samples)",
775 GraphTraceLen);
776 return 0;
777 }
778 if (grph == 'g') updateGrph=TRUE;
779 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 780}
781
782int CmdBitsamples(const char *Cmd)
783{
e0165dcf 784 int cnt = 0;
785 uint8_t got[12288];
952a8bb5 786
e0165dcf 787 GetFromBigBuf(got,sizeof(got),0);
788 WaitForResponse(CMD_ACK,NULL);
7fe9b0b7 789
e0165dcf 790 for (int j = 0; j < sizeof(got); j++) {
791 for (int k = 0; k < 8; k++) {
792 if(got[j] & (1 << (7 - k))) {
793 GraphBuffer[cnt++] = 1;
794 } else {
795 GraphBuffer[cnt++] = 0;
796 }
797 }
798 }
799 GraphTraceLen = cnt;
800 RepaintGraphWindow();
801 return 0;
7fe9b0b7 802}
803
7fe9b0b7 804int CmdBuffClear(const char *Cmd)
805{
e0165dcf 806 UsbCommand c = {CMD_BUFF_CLEAR};
807 SendCommand(&c);
808 ClearGraph(true);
809 return 0;
7fe9b0b7 810}
811
812int CmdDec(const char *Cmd)
813{
e0165dcf 814 for (int i = 0; i < (GraphTraceLen / 2); ++i)
815 GraphBuffer[i] = GraphBuffer[i * 2];
816 GraphTraceLen /= 2;
817 PrintAndLog("decimated by 2");
818 RepaintGraphWindow();
819 return 0;
7fe9b0b7 820}
698b649e
MHS		 821/**
822 * Undecimate - I'd call it 'interpolate', but we'll save that
823 * name until someone does an actual interpolation command, not just
824 * blindly repeating samples
825 * @param Cmd
826 * @return
827 */
828int CmdUndec(const char *Cmd)
829{
c856ceae
MHS		 830 if(param_getchar(Cmd, 0) == 'h')
831 {
832 PrintAndLog("Usage: data undec [factor]");
833 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
834 PrintAndLog("Options: ");
835 PrintAndLog(" h This help");
836 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
837 PrintAndLog("Example: 'data undec 3'");
838 return 0;
839 }
840
841 uint8_t factor = param_get8ex(Cmd, 0,2, 10);
698b649e
MHS		 842 //We have memory, don't we?
843 int swap[MAX_GRAPH_TRACE_LEN] = { 0 };
72c5877a 844 uint32_t g_index = 0, s_index = 0;
845 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
698b649e 846 {
c856ceae 847 int count = 0;
72c5877a 848 for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
c856ceae 849 swap[s_index+count] = GraphBuffer[g_index];
72c5877a 850
851 s_index += count;
852 g_index++;
698b649e 853 }
698b649e 854
72c5877a 855 memcpy(GraphBuffer, swap, s_index * sizeof(int));
c856ceae
MHS		 856 GraphTraceLen = s_index;
857 RepaintGraphWindow();
698b649e
MHS		 858 return 0;
859}
7fe9b0b7 860
ec75f5c1 861//by marshmellow
862//shift graph zero up or down based on input + or -
863int CmdGraphShiftZero(const char *Cmd)
864{
865
e0165dcf 866 int shift=0;
867 //set options from parameters entered with the command
868 sscanf(Cmd, "%i", &shift);
869 int shiftedVal=0;
870 for(int i = 0; i<GraphTraceLen; i++){
871 shiftedVal=GraphBuffer[i]+shift;
872 if (shiftedVal>127)
873 shiftedVal=127;
874 else if (shiftedVal<-127)
875 shiftedVal=-127;
876 GraphBuffer[i]= shiftedVal;
877 }
878 CmdNorm("");
879 return 0;
ec75f5c1 880}
881
6de43508 882//by marshmellow
883//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 884//similar to dirtheshold, threshold commands
6de43508 885//takes a threshold length which is the measured length between two samples then determines an edge
886int CmdAskEdgeDetect(const char *Cmd)
887{
e0165dcf 888 int thresLen = 25;
de53156e 889 int Last = 0;
e0165dcf 890 sscanf(Cmd, "%i", &thresLen);
49bbc60a 891
e0165dcf 892 for(int i = 1; i<GraphTraceLen; i++){
893 if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up
de53156e 894 Last = 127;
e0165dcf 895 else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down
de53156e 896 Last = -127;
897 GraphBuffer[i-1] = Last;
e0165dcf 898 }
899 RepaintGraphWindow();
e0165dcf 900 return 0;
6de43508 901}
902
7fe9b0b7 903/* Print our clock rate */
ba1a299c 904// uses data from graphbuffer
f3bf15e4 905// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 906int CmdDetectClockRate(const char *Cmd)
907{
f3bf15e4 908 char cmdp = param_getchar(Cmd, 0);
fef74fdc 909 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') {
910 PrintAndLog("Usage: data detectclock [modulation] <clock>");
f3bf15e4 911 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
fef74fdc 912 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
f3bf15e4 913 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
914 PrintAndLog("");
915 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
916 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
917 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
918 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
919 }
920 int ans=0;
921 if (cmdp == 'a'){
fef74fdc 922 ans = GetAskClock(Cmd+1, true, false);
f3bf15e4 923 } else if (cmdp == 'f'){
924 ans = GetFskClock("", true, false);
925 } else if (cmdp == 'n'){
926 ans = GetNrzClock("", true, false);
927 } else if (cmdp == 'p'){
928 ans = GetPskClock("", true, false);
929 } else {
930 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
931 }
932 return ans;
7fe9b0b7 933}
66707a3b 934
2767fc02 935char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
936{
0c50084a 937 static char fType[8];
9e4cee22 938 memset(fType, 0x00, 8);
0c50084a 939 char *fskType = fType;
2767fc02 940 if (fchigh==10 && fclow==8){
941 if (invert) //fsk2a
38b35095 942 memcpy(fskType, "FSK2a", 5);
2767fc02 943 else //fsk2
38b35095 944 memcpy(fskType, "FSK2", 4);
2767fc02 945 } else if (fchigh == 8 && fclow == 5) {
946 if (invert)
38b35095 947 memcpy(fskType, "FSK1", 4);
2767fc02 948 else
38b35095 949 memcpy(fskType, "FSK1a", 5);
2767fc02 950 } else {
38b35095 951 memcpy(fskType, "FSK??", 5);
2767fc02 952 }
953 return fskType;
954}
955
2fc2150e 956//by marshmellow
eb191de6 957//fsk raw demod and print binary
6de43508 958//takes 4 arguments - Clock, invert, fchigh, fclow
959//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 960int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 961{
e0165dcf 962 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
506672c4 963 uint8_t rfLen, invert, fchigh, fclow;
506672c4 964 //set defaults
e0165dcf 965 //set options from parameters entered with the command
6ca1477c 966 rfLen = param_get8(Cmd, 0);
967 invert = param_get8(Cmd, 1);
968 fchigh = param_get8(Cmd, 2);
969 fclow = param_get8(Cmd, 3);
d1869c33 970
e0165dcf 971 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
a0cc89b4 972 if (rfLen==1) {
2eec55c8 973 invert = 1; //if invert option only is used
e0165dcf 974 rfLen = 0;
a0cc89b4 975 }
e0165dcf 976 }
e0165dcf 977 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
978 size_t BitLen = getFromGraphBuf(BitStream);
979 if (BitLen==0) return 0;
980 //get field clock lengths
a0cc89b4 981 uint16_t fcs=0;
506672c4 982 if (!fchigh || !fclow) {
a0cc89b4 983 fcs = countFC(BitStream, BitLen, 1);
984 if (!fcs) {
985 fchigh = 10;
986 fclow = 8;
987 } else {
988 fchigh = (fcs >> 8) & 0x00FF;
989 fclow = fcs & 0x00FF;
e0165dcf 990 }
991 }
992 //get bit clock length
a0cc89b4 993 if (!rfLen) {
e0165dcf 994 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
506672c4 995 if (!rfLen) rfLen = 50;
e0165dcf 996 }
506672c4 997 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
a0cc89b4 998 if (size > 0) {
e0165dcf 999 setDemodBuf(BitStream,size,0);
1000
1001 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 1002 if (verbose || g_debugMode) {
a0cc89b4 1003 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow);
2767fc02 1004 PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
1005 printDemodBuff();
e0165dcf 1006 }
d1869c33 1007
e0165dcf 1008 return 1;
506672c4 1009 } else {
2767fc02 1010 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 1011 }
1012 return 0;
b3b70669 1013}
1014
4ac906d1 1015//by marshmellow
1016//fsk raw demod and print binary
1017//takes 4 arguments - Clock, invert, fchigh, fclow
1018//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1019int CmdFSKrawdemod(const char *Cmd)
1020{
e0165dcf 1021 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 1022 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') {
e0165dcf 1023 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
1024 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
1025 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
1026 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
1027 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
1028 PrintAndLog("");
1029 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
1030 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
1031 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
1032 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
1033 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
1034 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
1035 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
1036 return 0;
1037 }
1038 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1039}
1040
eb191de6 1041//by marshmellow (based on existing demod + holiman's refactor)
1042//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1043//print full HID Prox ID and some bit format details if found
b3b70669 1044int CmdFSKdemodHID(const char *Cmd)
1045{
e0165dcf 1046 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1047 uint32_t hi2=0, hi=0, lo=0;
1048
1049 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1050 size_t BitLen = getFromGraphBuf(BitStream);
1051 if (BitLen==0) return 0;
1052 //get binary from fsk wave
1053 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1054 if (idx<0){
1055 if (g_debugMode){
1056 if (idx==-1){
1057 PrintAndLog("DEBUG: Just Noise Detected");
1058 } else if (idx == -2) {
1059 PrintAndLog("DEBUG: Error demoding fsk");
1060 } else if (idx == -3) {
1061 PrintAndLog("DEBUG: Preamble not found");
1062 } else if (idx == -4) {
1063 PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen);
1064 } else {
1065 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1066 }
1067 }
1068 return 0;
1069 }
1070 if (hi2==0 && hi==0 && lo==0) {
1071 if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
1072 return 0;
1073 }
1074 if (hi2 != 0){ //extra large HID tags
1075 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)",
1076 (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF);
1077 }
1078 else { //standard HID tags <38 bits
1079 uint8_t fmtLen = 0;
1080 uint32_t fc = 0;
1081 uint32_t cardnum = 0;
1082 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1083 uint32_t lo2=0;
1084 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1085 uint8_t idx3 = 1;
1086 while(lo2>1){ //find last bit set to 1 (format len bit)
1087 lo2=lo2>>1;
1088 idx3++;
1089 }
1090 fmtLen =idx3+19;
1091 fc =0;
1092 cardnum=0;
1093 if(fmtLen==26){
1094 cardnum = (lo>>1)&0xFFFF;
1095 fc = (lo>>17)&0xFF;
1096 }
1097 if(fmtLen==34){
1098 cardnum = (lo>>1)&0xFFFF;
1099 fc= ((hi&1)<<15)|(lo>>17);
1100 }
1101 if(fmtLen==35){
1102 cardnum = (lo>>1)&0xFFFFF;
1103 fc = ((hi&1)<<11)|(lo>>21);
1104 }
1105 }
1106 else { //if bit 38 is not set then 37 bit format is used
1107 fmtLen = 37;
1108 fc = 0;
1109 cardnum = 0;
1110 if(fmtLen == 37){
1111 cardnum = (lo>>1)&0x7FFFF;
1112 fc = ((hi&0xF)<<12)|(lo>>20);
1113 }
1114 }
1115 PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d",
1116 (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
1117 (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum);
1118 }
1119 setDemodBuf(BitStream,BitLen,idx);
1120 if (g_debugMode){
1121 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
1122 printDemodBuff();
1123 }
1124 return 1;
ec75f5c1 1125}
1126
04d2721b 1127//by marshmellow
1128//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1129//print full Paradox Prox ID and some bit format details if found
1130int CmdFSKdemodParadox(const char *Cmd)
1131{
e0165dcf 1132 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1133 uint32_t hi2=0, hi=0, lo=0;
1134
1135 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1136 size_t BitLen = getFromGraphBuf(BitStream);
1137 if (BitLen==0) return 0;
1138 //get binary from fsk wave
1139 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1140 if (idx<0){
1141 if (g_debugMode){
1142 if (idx==-1){
1143 PrintAndLog("DEBUG: Just Noise Detected");
1144 } else if (idx == -2) {
1145 PrintAndLog("DEBUG: Error demoding fsk");
1146 } else if (idx == -3) {
1147 PrintAndLog("DEBUG: Preamble not found");
1148 } else if (idx == -4) {
1149 PrintAndLog("DEBUG: Error in Manchester data");
1150 } else {
1151 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1152 }
1153 }
1154 return 0;
1155 }
1156 if (hi2==0 && hi==0 && lo==0){
1157 if (g_debugMode) PrintAndLog("DEBUG: Error - no value found");
1158 return 0;
1159 }
1160 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1161 uint32_t cardnum = (lo>>10)&0xFFFF;
1162 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1163 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1164 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1165
1166 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1167 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1168 setDemodBuf(BitStream,BitLen,idx);
1169 if (g_debugMode){
1170 PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
1171 printDemodBuff();
1172 }
1173 return 1;
b3b70669 1174}
1175
2fc2150e 1176//by marshmellow
eb191de6 1177//IO-Prox demod - FSK RF/64 with preamble of 000000001
1178//print ioprox ID and some format details
b3b70669 1179int CmdFSKdemodIO(const char *Cmd)
1180{
e0165dcf 1181 int idx=0;
1182 //something in graphbuffer?
1183 if (GraphTraceLen < 65) {
1184 if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer");
1185 return 0;
1186 }
1187 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1188 size_t BitLen = getFromGraphBuf(BitStream);
1189 if (BitLen==0) return 0;
1190
1191 //get binary from fsk wave
1192 idx = IOdemodFSK(BitStream,BitLen);
1193 if (idx<0){
1194 if (g_debugMode){
1195 if (idx==-1){
1196 PrintAndLog("DEBUG: Just Noise Detected");
1197 } else if (idx == -2) {
1198 PrintAndLog("DEBUG: not enough samples");
1199 } else if (idx == -3) {
1200 PrintAndLog("DEBUG: error during fskdemod");
1201 } else if (idx == -4) {
1202 PrintAndLog("DEBUG: Preamble not found");
1203 } else if (idx == -5) {
1204 PrintAndLog("DEBUG: Separator bits not found");
1205 } else {
1206 PrintAndLog("DEBUG: Error demoding fsk %d", idx);
1207 }
1208 }
1209 return 0;
1210 }
1211 if (idx==0){
2767fc02 1212 if (g_debugMode){
e0165dcf 1213 PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen);
2767fc02 1214 if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1215 }
1216 return 0;
1217 }
1218 //Index map
1219 //0 10 20 30 40 50 60
1220 //| | | | | | |
1221 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1222 //-----------------------------------------------------------------------------
1223 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1224 //
1225 //XSF(version)facility:codeone+codetwo (raw)
1226 //Handle the data
1227 if (idx+64>BitLen) {
2767fc02 1228 if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen);
e0165dcf 1229 return 0;
1230 }
1231 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]);
1232 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]);
1233 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]);
1234 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]);
1235 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]);
1236 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]);
1237 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]);
1238
1239 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1240 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1241 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1242 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1243 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1244 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1245 uint16_t calccrc = 0;
1246
1247 for (uint8_t i=1; i<6; ++i){
1248 calccrc += bytebits_to_byte(BitStream+idx+9*i,8);
e0165dcf 1249 }
1250 calccrc &= 0xff;
1251 calccrc = 0xff - calccrc;
1252
1253 char *crcStr = (crc == calccrc) ? "crc ok": "!crc";
1254
1255 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr);
1256 setDemodBuf(BitStream,64,idx);
1257 if (g_debugMode){
1258 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
1259 printDemodBuff();
1260 }
1261 return 1;
b3b70669 1262}
1e090a61 1263
1e090a61 1264//by marshmellow
1265//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1266//print full AWID Prox ID and some bit format details if found
1267int CmdFSKdemodAWID(const char *Cmd)
1268{
e0165dcf 1269 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1270 size_t size = getFromGraphBuf(BitStream);
1271 if (size==0) return 0;
1272
1273 //get binary from fsk wave
1274 int idx = AWIDdemodFSK(BitStream, &size);
1275 if (idx<=0){
6923d3f1 1276 if (g_debugMode){
e0165dcf 1277 if (idx == -1)
1278 PrintAndLog("DEBUG: Error - not enough samples");
1279 else if (idx == -2)
1280 PrintAndLog("DEBUG: Error - only noise found");
1281 else if (idx == -3)
1282 PrintAndLog("DEBUG: Error - problem during FSK demod");
1283 else if (idx == -4)
1284 PrintAndLog("DEBUG: Error - AWID preamble not found");
1285 else if (idx == -5)
1286 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1287 else
1288 PrintAndLog("DEBUG: Error %d",idx);
1289 }
1290 return 0;
1291 }
1292
1293 // Index map
1294 // 0 10 20 30 40 50 60
1295 // | | | | | | |
1296 // 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
1297 // -----------------------------------------------------------------------------
1298 // 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
1299 // 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
1300 // |---26 bit---| |-----117----||-------------142-------------|
1301 // b = format bit len, o = odd parity of last 3 bits
1302 // f = facility code, c = card number
1303 // w = wiegand parity
1304 // (26 bit format shown)
1e090a61 1305
e0165dcf 1306 //get raw ID before removing parities
1307 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1308 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1309 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1310 setDemodBuf(BitStream,96,idx);
1311
1312 size = removeParity(BitStream, idx+8, 4, 1, 88);
1313 if (size != 66){
6923d3f1 1314 if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
e0165dcf 1315 return 0;
1316 }
1317 // ok valid card found!
1318
1319 // Index map
1320 // 0 10 20 30 40 50 60
1321 // | | | | | | |
1322 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1323 // -----------------------------------------------------------------------------
1324 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1325 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1326 // |26 bit| |-117--| |-----142------|
1327 // b = format bit len, o = odd parity of last 3 bits
1328 // f = facility code, c = card number
1329 // w = wiegand parity
1330 // (26 bit format shown)
1331
1332 uint32_t fc = 0;
1333 uint32_t cardnum = 0;
1334 uint32_t code1 = 0;
1335 uint32_t code2 = 0;
1336 uint8_t fmtLen = bytebits_to_byte(BitStream,8);
1337 if (fmtLen==26){
1338 fc = bytebits_to_byte(BitStream+9, 8);
1339 cardnum = bytebits_to_byte(BitStream+17, 16);
1340 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1341 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
1342 } else {
1343 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1344 if (fmtLen>32){
1345 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1346 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
1347 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1348 } else{
1349 code1 = bytebits_to_byte(BitStream+8,fmtLen);
1350 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
1351 }
1352 }
1353 if (g_debugMode){
1354 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
1355 printDemodBuff();
1356 }
1357 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
1358 return 1;
1e090a61 1359}
1360
1361//by marshmellow
1362//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1363//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1364int CmdFSKdemodPyramid(const char *Cmd)
1365{
e0165dcf 1366 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1367 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1368 size_t size = getFromGraphBuf(BitStream);
1369 if (size==0) return 0;
1370
1371 //get binary from fsk wave
1372 int idx = PyramiddemodFSK(BitStream, &size);
1373 if (idx < 0){
6923d3f1 1374 if (g_debugMode){
e0165dcf 1375 if (idx == -5)
1376 PrintAndLog("DEBUG: Error - not enough samples");
1377 else if (idx == -1)
1378 PrintAndLog("DEBUG: Error - only noise found");
1379 else if (idx == -2)
1380 PrintAndLog("DEBUG: Error - problem during FSK demod");
1381 else if (idx == -3)
1382 PrintAndLog("DEBUG: Error - Size not correct: %d", size);
1383 else if (idx == -4)
1384 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
1385 else
1386 PrintAndLog("DEBUG: Error - idx: %d",idx);
1387 }
1388 return 0;
1389 }
1390 // Index map
1391 // 0 10 20 30 40 50 60
1392 // | | | | | | |
1393 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1394 // -----------------------------------------------------------------------------
1395 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1396 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1397
1398 // 64 70 80 90 100 110 120
1399 // | | | | | | |
1400 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1401 // -----------------------------------------------------------------------------
1402 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1403 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1404 // |---115---||---------71---------|
1405 // s = format start bit, o = odd parity of last 7 bits
1406 // f = facility code, c = card number
1407 // w = wiegand parity, x = extra space for other formats
1408 // p = unknown checksum
1409 // (26 bit format shown)
1410
1411 //get bytes for checksum calc
1412 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1413 uint8_t csBuff[14] = {0x00};
1414 for (uint8_t i = 0; i < 13; i++){
1415 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1416 }
1417 //check checksum calc
1418 //checksum calc thanks to ICEMAN!!
1419 uint32_t checkCS = CRC8Maxim(csBuff,13);
1420
1421 //get raw ID before removing parities
1422 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32);
1423 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32);
1424 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32);
1425 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32);
1426 setDemodBuf(BitStream,128,idx);
1427
1428 size = removeParity(BitStream, idx+8, 8, 1, 120);
1429 if (size != 105){
6923d3f1 1430 if (g_debugMode)
e0165dcf 1431 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3);
1432 return 0;
1433 }
1434
1435 // ok valid card found!
1436
1437 // Index map
1438 // 0 10 20 30 40 50 60 70
1439 // | | | | | | | |
1440 // 01234567890123456789012345678901234567890123456789012345678901234567890
1441 // -----------------------------------------------------------------------
1442 // 00000000000000000000000000000000000000000000000000000000000000000000000
1443 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1444
1445 // 71 80 90 100
1446 // | | | |
1447 // 1 2 34567890 1234567890123456 7 8901234
1448 // ---------------------------------------
1449 // 1 1 01110011 0000000001000110 0 1001010
1450 // s w ffffffff cccccccccccccccc w ppppppp
1451 // |--115-| |------71------|
1452 // s = format start bit, o = odd parity of last 7 bits
1453 // f = facility code, c = card number
1454 // w = wiegand parity, x = extra space for other formats
1455 // p = unknown checksum
1456 // (26 bit format shown)
1457
1458 //find start bit to get fmtLen
1459 int j;
1460 for (j=0; j<size; j++){
1461 if(BitStream[j]) break;
1462 }
1463 uint8_t fmtLen = size-j-8;
1464 uint32_t fc = 0;
1465 uint32_t cardnum = 0;
1466 uint32_t code1 = 0;
e0165dcf 1467 if (fmtLen==26){
1468 fc = bytebits_to_byte(BitStream+73, 8);
1469 cardnum = bytebits_to_byte(BitStream+81, 16);
1470 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1471 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);
1472 } else if (fmtLen==45){
1473 fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
1474 fc = bytebits_to_byte(BitStream+53, 10);
1475 cardnum = bytebits_to_byte(BitStream+63, 32);
1476 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1477 } else {
1478 cardnum = bytebits_to_byte(BitStream+81, 16);
1479 if (fmtLen>32){
1480 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
1481 //code2 = bytebits_to_byte(BitStream+(size-32),32);
1482 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1483 } else{
1484 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
1485 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1486 }
1487 }
1488 if (checksum == checkCS)
1489 PrintAndLog("Checksum %02x passed", checksum);
1490 else
1491 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1492
1493 if (g_debugMode){
1494 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
1495 printDemodBuff();
1496 }
1497 return 1;
1e090a61 1498}
1499
b2c330b3 1500// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
04bb0567 1501// 8 databits + 1 parity (1)
1502// CIITT 16 chksum
1503// NATIONAL CODE, ICAR database
b2c330b3 1504// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
04bb0567 1505// FLAG (animal/non-animal)
709665b5 1506/*
150738 IDbits
150810 country code
15091 extra app bit
151014 reserved bits
15111 animal bit
151216 ccitt CRC chksum over 64bit ID CODE.
151324 appli bits.
1514
1515-- sample: 985121004515220 [ 37FF65B88EF94 ]
1516*/
b2c330b3 1517int CmdFDXBdemodBI(const char *Cmd){
04bb0567 1518
1519 int invert = 1;
1520 int clk = 32;
1521 int errCnt = 0;
1522 int maxErr = 0;
1523 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1524 size_t size = getFromGraphBuf(BitStream);
1525
1526 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1527 if ( errCnt < 0 || errCnt > maxErr ) {
c2c7f6c2 1528 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
04bb0567 1529 return 0;
1530 }
1531
1532 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1533 if (errCnt < 0 || errCnt > maxErr ) {
1534 if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
1535 return 0;
1536 }
1537
b2c330b3 1538 int preambleIndex = FDXBdemodBI(BitStream, &size);
04bb0567 1539 if (preambleIndex < 0){
b2c330b3 1540 if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
04bb0567 1541 return 0;
1542 }
f6650679 1543 if (size != 128) {
1544 if (g_debugMode) PrintAndLog("Error incorrect data length found");
1545 return 0;
1546 }
04bb0567 1547
1548 setDemodBuf(BitStream, 128, preambleIndex);
04bb0567 1549
29b6cacc 1550 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
fd1d30cb 1551 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
29b6cacc 1552 if ( size != 104 ) {
04bb0567 1553 if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
1554 return 0;
1555 }
b2c330b3 1556 if (g_debugMode) {
1557 char *bin = sprint_bin_break(BitStream,size,16);
1558 PrintAndLog("DEBUG BinStream:\n%s",bin);
1559 }
1560 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
6eaa8da9 1561 if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
04bb0567 1562
04bb0567 1563 //got a good demod
b2c330b3 1564 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
04bb0567 1565 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1566 uint8_t dataBlockBit = BitStream[48];
1567 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1568 uint8_t animalBit = BitStream[63];
1569 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
1570 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1571
07b5a3c3 1572 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
6eaa8da9 1573 uint8_t raw[8];
1574 num_to_bytes(rawid, 8, raw);
6eaa8da9 1575
07b5a3c3 1576 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
6eaa8da9 1577
07b5a3c3 1578 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
43534cba 1579 PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
1580 PrintAndLog("National Code: %012" PRIu64, NationalCode);
c2c7f6c2 1581 PrintAndLog("CountryCode: %04u", countryCode);
b2c330b3 1582 PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
1583 PrintAndLog("reserved Code: %u", reservedCode);
1584 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
6eaa8da9 1585 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
1586 PrintAndLog("Extended: 0x%X\n", extended);
fd1d30cb 1587
04bb0567 1588 return 1;
1589}
1590
1591
e770c648 1592//by marshmellow
1593//attempt to psk1 demod graph buffer
4ac906d1 1594int PSKDemod(const char *Cmd, bool verbose)
e770c648 1595{
e0165dcf 1596 int invert=0;
1597 int clk=0;
1598 int maxErr=100;
1599 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1600 if (clk==1){
1601 invert=1;
1602 clk=0;
1603 }
1604 if (invert != 0 && invert != 1) {
2ec87733 1605 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1606 return 0;
1607 }
1608 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1609 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1610 if (BitLen==0) return 0;
2eec55c8 1611 uint8_t carrier=countFC(BitStream, BitLen, 0);
e0165dcf 1612 if (carrier!=2 && carrier!=4 && carrier!=8){
1613 //invalid carrier
1614 return 0;
1615 }
6fe5c94b 1616 if (g_debugMode){
1617 PrintAndLog("Carrier: rf/%d",carrier);
1618 }
e0165dcf 1619 int errCnt=0;
1620 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1621 if (errCnt > maxErr){
2767fc02 1622 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1623 return 0;
1624 }
1625 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
2767fc02 1626 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1627 return 0;
1628 }
2767fc02 1629 if (verbose || g_debugMode){
1630 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1631 if (errCnt>0){
2767fc02 1632 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1633 }
1634 }
1635 //prime demod buffer for output
1636 setDemodBuf(BitStream,BitLen,0);
1637 return 1;
4118b74d 1638}
e770c648 1639
4118b74d 1640// Indala 26 bit decode
1641// by marshmellow
1642// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1643int CmdIndalaDecode(const char *Cmd)
1644{
b4fb11ba 1645 int ans;
1646 if (strlen(Cmd)>0){
1647 ans = PSKDemod(Cmd, 0);
1648 } else{ //default to RF/32
1649 ans = PSKDemod("32", 0);
1650 }
4118b74d 1651
7a8a982b 1652 if (!ans){
6923d3f1 1653 if (g_debugMode)
b4fb11ba 1654 PrintAndLog("Error1: %d",ans);
ba1a299c 1655 return 0;
1656 }
1657 uint8_t invert=0;
14331320 1658 size_t size = DemodBufferLen;
6923d3f1 1659 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1660 if (startIdx < 0 || size > 224) {
1661 if (g_debugMode)
b4fb11ba 1662 PrintAndLog("Error2: %d",ans);
ba1a299c 1663 return -1;
1664 }
6923d3f1 1665 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
84871873 1666 if (invert)
6923d3f1 1667 if (g_debugMode)
e0165dcf 1668 PrintAndLog("Had to invert bits");
ec75f5c1 1669
14331320 1670 PrintAndLog("BitLen: %d",DemodBufferLen);
ba1a299c 1671 //convert UID to HEX
1672 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
14331320 1673 uid1=bytebits_to_byte(DemodBuffer,32);
1674 uid2=bytebits_to_byte(DemodBuffer+32,32);
1675 if (DemodBufferLen==64) {
709665b5 1676 PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2);
14331320 1677 } else {
1678 uid3=bytebits_to_byte(DemodBuffer+64,32);
1679 uid4=bytebits_to_byte(DemodBuffer+96,32);
1680 uid5=bytebits_to_byte(DemodBuffer+128,32);
1681 uid6=bytebits_to_byte(DemodBuffer+160,32);
1682 uid7=bytebits_to_byte(DemodBuffer+192,32);
1683 PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",
709665b5 1684 sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7);
ba1a299c 1685 }
b4fb11ba 1686 if (g_debugMode){
1687 PrintAndLog("DEBUG: printing demodbuffer:");
1688 printDemodBuff();
1689 }
ba1a299c 1690 return 1;
4118b74d 1691}
1692
411105e0 1693int CmdPSKNexWatch(const char *Cmd)
1694{
1695 if (!PSKDemod("", false)) return 0;
1696 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};
1697 size_t startIdx = 0, size = DemodBufferLen;
1698 bool invert = false;
1699 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1700 // if didn't find preamble try again inverting
1701 if (!PSKDemod("1", false)) return 0;
1702 size = DemodBufferLen;
1703 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1704 invert = true;
1705 }
1706 if (size != 128) return 0;
1707 setDemodBuf(DemodBuffer, size, startIdx+4);
1708 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1709 //get ID
1710 uint32_t ID = 0;
1711 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1712 for (uint8_t idx=0; idx<8; idx++){
1713 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1714 }
1715 }
1716 //parity check (TBD)
1717
1718 //checksum check (TBD)
1719
1720 //output
1721 PrintAndLog("NexWatch ID: %d", ID);
1722 if (invert){
1723 PrintAndLog("Had to Invert - probably NexKey");
1724 for (uint8_t idx=0; idx<size; idx++)
1725 DemodBuffer[idx] ^= 1;
1726 }
1727
1728 CmdPrintDemodBuff("x");
1729 return 1;
1730}
1731
04d2721b 1732// by marshmellow
e770c648 1733// takes 3 arguments - clock, invert, maxErr as integers
1734// attempts to demodulate nrz only
1735// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1736int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1737{
e0165dcf 1738 int invert=0;
1739 int clk=0;
1740 int maxErr=100;
1741 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1742 if (clk==1){
1743 invert=1;
1744 clk=0;
1745 }
1746 if (invert != 0 && invert != 1) {
1747 PrintAndLog("Invalid argument: %s", Cmd);
1748 return 0;
1749 }
1750 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1751 size_t BitLen = getFromGraphBuf(BitStream);
1752 if (BitLen==0) return 0;
1753 int errCnt=0;
db829602 1754 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
e0165dcf 1755 if (errCnt > maxErr){
1756 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1757 return 0;
1758 }
2eec55c8 1759 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1760 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1761 return 0;
1762 }
1763 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1764 //prime demod buffer for output
1765 setDemodBuf(BitStream,BitLen,0);
1766
2767fc02 1767 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1768 if (verbose || g_debugMode) {
1769 PrintAndLog("NRZ demoded bitstream:");
1770 // Now output the bitstream to the scrollback by line of 16 bits
1771 printDemodBuff();
1772 }
1773 return 1;
b4a2fcf6 1774}
1775
1776int CmdNRZrawDemod(const char *Cmd)
1777{
e0165dcf 1778 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 1779 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
e0165dcf 1780 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
1781 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1782 PrintAndLog(" <invert>, 1 for invert output");
1783 PrintAndLog(" [set maximum allowed errors], default = 100.");
1784 PrintAndLog("");
1785 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
1786 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
1787 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
1788 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
1789 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");
1790 return 0;
1791 }
1792 return NRZrawDemod(Cmd, TRUE);
e770c648 1793}
1794
1795// by marshmellow
1796// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 1797// attempts to demodulate psk only
1798// prints binary found and saves in demodbuffer for further commands
e770c648 1799int CmdPSK1rawDemod(const char *Cmd)
4118b74d 1800{
e0165dcf 1801 int ans;
1802 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 1803 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
e0165dcf 1804 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
1805 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1806 PrintAndLog(" <invert>, 1 for invert output");
1807 PrintAndLog(" [set maximum allowed errors], default = 100.");
1808 PrintAndLog("");
1809 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
1810 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
1811 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
1812 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
1813 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");
1814 return 0;
1815 }
1816 ans = PSKDemod(Cmd, TRUE);
1817 //output
1818 if (!ans){
1819 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1820 return 0;
1821 }
7a8a982b 1822
2767fc02 1823 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 1824 // Now output the bitstream to the scrollback by line of 16 bits
1825 printDemodBuff();
1826 return 1;
4118b74d 1827}
1828
04d2721b 1829// by marshmellow
19ff0210 1830// takes same args as cmdpsk1rawdemod
04d2721b 1831int CmdPSK2rawDemod(const char *Cmd)
1832{
e0165dcf 1833 int ans=0;
1834 char cmdp = param_getchar(Cmd, 0);
01d0f8ae 1835 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') {
e0165dcf 1836 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
1837 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
1838 PrintAndLog(" <invert>, 1 for invert output");
1839 PrintAndLog(" [set maximum allowed errors], default = 100.");
1840 PrintAndLog("");
1841 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
1842 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
1843 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
1844 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
1845 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");
1846 return 0;
1847 }
1848 ans=PSKDemod(Cmd, TRUE);
1849 if (!ans){
1850 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
1851 return 0;
1852 }
1853 psk1TOpsk2(DemodBuffer, DemodBufferLen);
1854 PrintAndLog("PSK2 demoded bitstream:");
1855 // Now output the bitstream to the scrollback by line of 16 bits
1856 printDemodBuff();
1857 return 1;
04d2721b 1858}
1859
19ff0210 1860// by marshmellow - combines all raw demod functions into one menu command
1861int CmdRawDemod(const char *Cmd)
1862{
1863 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
1864
01d0f8ae 1865 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) {
19ff0210 1866 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
b41534d1 1867 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
1868 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
19ff0210 1869 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
1870 PrintAndLog(" <options> see specific modulation help for optional parameters");
1871 PrintAndLog("");
1fbf8956 1872 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
19ff0210 1873 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
b41534d1 1874 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
19ff0210 1875 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
1876 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
1877 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
1878 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
1879 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
1880 return 0;
1881 }
1882 char cmdp2 = Cmd[1];
1883 int ans = 0;
1884 if (cmdp == 'f' && cmdp2 == 's'){
f8f894a5 1885 ans = CmdFSKrawdemod(Cmd+2);
b41534d1 1886 } else if(cmdp == 'a' && cmdp2 == 'b'){
f8f894a5 1887 ans = Cmdaskbiphdemod(Cmd+2);
19ff0210 1888 } else if(cmdp == 'a' && cmdp2 == 'm'){
f8f894a5 1889 ans = Cmdaskmandemod(Cmd+2);
19ff0210 1890 } else if(cmdp == 'a' && cmdp2 == 'r'){
f8f894a5 1891 ans = Cmdaskrawdemod(Cmd+2);
19ff0210 1892 } else if(cmdp == 'n' && cmdp2 == 'r'){
f8f894a5 1893 ans = CmdNRZrawDemod(Cmd+2);
19ff0210 1894 } else if(cmdp == 'p' && cmdp2 == '1'){
f8f894a5 1895 ans = CmdPSK1rawDemod(Cmd+2);
19ff0210 1896 } else if(cmdp == 'p' && cmdp2 == '2'){
f8f894a5 1897 ans = CmdPSK2rawDemod(Cmd+2);
19ff0210 1898 } else {
1899 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
1900 }
1901 return ans;
1902}
1903
7fe9b0b7 1904int CmdGrid(const char *Cmd)
1905{
e0165dcf 1906 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
1907 PlotGridXdefault= PlotGridX;
1908 PlotGridYdefault= PlotGridY;
1909 RepaintGraphWindow();
1910 return 0;
7fe9b0b7 1911}
1912
f9f0e83b 1913int CmdSetGraphMarkers(const char *Cmd) {
1914 sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
1915 RepaintGraphWindow();
1916 return 0;
1917}
1918
7fe9b0b7 1919int CmdHexsamples(const char *Cmd)
1920{
e0165dcf 1921 int i, j;
1922 int requested = 0;
1923 int offset = 0;
1924 char string_buf[25];
1925 char* string_ptr = string_buf;
1926 uint8_t got[BIGBUF_SIZE];
1927
1928 sscanf(Cmd, "%i %i", &requested, &offset);
1929
1930 /* if no args send something */
1931 if (requested == 0) {
1932 requested = 8;
1933 }
1934 if (offset + requested > sizeof(got)) {
1935 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
1936 return 0;
1937 }
1938
1939 GetFromBigBuf(got,requested,offset);
1940 WaitForResponse(CMD_ACK,NULL);
1941
1942 i = 0;
1943 for (j = 0; j < requested; j++) {
1944 i++;
1945 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
1946 if (i == 8) {
1947 *(string_ptr - 1) = '\0'; // remove the trailing space
1948 PrintAndLog("%s", string_buf);
1949 string_buf[0] = '\0';
1950 string_ptr = string_buf;
1951 i = 0;
1952 }
1953 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
1954 *(string_ptr - 1) = '\0';
1955 PrintAndLog("%s", string_buf);
1956 string_buf[0] = '\0';
1957 }
1958 }
1959 return 0;
7fe9b0b7 1960}
1961
7fe9b0b7 1962int CmdHide(const char *Cmd)
1963{
e0165dcf 1964 HideGraphWindow();
1965 return 0;
7fe9b0b7 1966}
1967
78f5b1a7 1968//zero mean GraphBuffer
7fe9b0b7 1969int CmdHpf(const char *Cmd)
1970{
e0165dcf 1971 int i;
1972 int accum = 0;
7fe9b0b7 1973
e0165dcf 1974 for (i = 10; i < GraphTraceLen; ++i)
1975 accum += GraphBuffer[i];
1976 accum /= (GraphTraceLen - 10);
1977 for (i = 0; i < GraphTraceLen; ++i)
1978 GraphBuffer[i] -= accum;
7fe9b0b7 1979
e0165dcf 1980 RepaintGraphWindow();
1981 return 0;
7fe9b0b7 1982}
f6d9fb17 1983
f6821167 1984uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b)
f6d9fb17
MHS		 1985{
1986 int i;
1987 uint8_t val = 0;
1988 for(i =0 ; i < bits_per_sample; i++)
1989 {
f6821167 1990 val |= (headBit(b) << (7-i));
f6d9fb17
MHS		 1991 }
1992 return val;
1993}
7fe9b0b7 1994
1fbf8956 1995int getSamples(const char *Cmd, bool silent)
7fe9b0b7 1996{
e0165dcf 1997 //If we get all but the last byte in bigbuf,
1998 // we don't have to worry about remaining trash
1999 // in the last byte in case the bits-per-sample
2000 // does not line up on byte boundaries
2001
2002 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2003
2004 int n = strtol(Cmd, NULL, 0);
2005
709665b5 2006 if (n == 0 || n > sizeof(got))
e0165dcf 2007 n = sizeof(got);
2008
2009 PrintAndLog("Reading %d bytes from device memory\n", n);
2010 GetFromBigBuf(got,n,0);
2011 PrintAndLog("Data fetched");
2012 UsbCommand response;
2013 WaitForResponse(CMD_ACK, &response);
2014 uint8_t bits_per_sample = 8;
2015
2016 //Old devices without this feature would send 0 at arg[0]
2017 if(response.arg[0] > 0)
2018 {
2019 sample_config *sc = (sample_config *) response.d.asBytes;
2020 PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample
2021 , sc->decimation);
2022 bits_per_sample = sc->bits_per_sample;
2023 }
2024 if(bits_per_sample < 8)
2025 {
2026 PrintAndLog("Unpacking...");
f6821167 2027 BitstreamIn bout = { got, bits_per_sample * n, 0};
e0165dcf 2028 int j =0;
e6432f05 2029 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2030 uint8_t sample = getByte(bits_per_sample, &bout);
2031 GraphBuffer[j] = ((int) sample )- 128;
2032 }
2033 GraphTraceLen = j;
2034 PrintAndLog("Unpacked %d samples" , j );
2035 }else
2036 {
2037 for (int j = 0; j < n; j++) {
2038 GraphBuffer[j] = ((int)got[j]) - 128;
2039 }
2040 GraphTraceLen = n;
2041 }
2042
2043 RepaintGraphWindow();
2044 return 0;
1fbf8956 2045}
2046
2047int CmdSamples(const char *Cmd)
2048{
e0165dcf 2049 return getSamples(Cmd, false);
7fe9b0b7 2050}
2051
d6a120a2
MHS		 2052int CmdTuneSamples(const char *Cmd)
2053{
fdcfbdcc
RAB		 2054 int timeout = 0, arg = FLAG_TUNE_ALL;
2055
2056 if(*Cmd == 'l') {
2057 arg = FLAG_TUNE_LF;
2058 } else if (*Cmd == 'h') {
2059 arg = FLAG_TUNE_HF;
2060 } else if (*Cmd != '\0') {
2061 PrintAndLog("use 'tune' or 'tune l' or 'tune h'");
2062 return 0;
2063 }
2064
3aa4014b 2065 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2066
fdcfbdcc 2067 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}};
3aa4014b 2068 SendCommand(&c);
2069
2070 UsbCommand resp;
2071 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) {
2072 timeout++;
2073 printf(".");
2074 if (timeout > 7) {
2075 PrintAndLog("\nNo response from Proxmark. Aborting...");
2076 return 1;
2077 }
2078 }
2079
2080 int peakv, peakf;
2081 int vLf125, vLf134, vHf;
2082 vLf125 = resp.arg[0] & 0xffff;
2083 vLf134 = resp.arg[0] >> 16;
2084 vHf = resp.arg[1] & 0xffff;;
2085 peakf = resp.arg[2] & 0xffff;
2086 peakv = resp.arg[2] >> 16;
2087 PrintAndLog("");
2088 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
2089 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
2090 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
2091 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2092
2767fc02 2093 #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2094 #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2095 #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2096 #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
0d0d0499 2097
2098 if (peakv < LF_UNUSABLE_V)
3aa4014b 2099 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2100 else if (peakv < LF_MARGINAL_V)
3aa4014b 2101 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2102 if (vHf < HF_UNUSABLE_V)
3aa4014b 2103 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2104 else if (vHf < HF_MARGINAL_V)
3aa4014b 2105 PrintAndLog("# Your HF antenna is marginal.");
2106
0d0d0499 2107 if (peakv >= LF_UNUSABLE_V) {
2108 for (int i = 0; i < 256; i++) {
2109 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2110 }
2111 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2112 PrintAndLog("\n");
2113 GraphTraceLen = 256;
2114 ShowGraphWindow();
abd16c45 2115 RepaintGraphWindow();
ba1a299c 2116 }
2117
b4fb11ba 2118 return 0;
d6a120a2
MHS		 2119}
2120
3aa4014b 2121
7fe9b0b7 2122int CmdLoad(const char *Cmd)
2123{
e0165dcf 2124 char filename[FILE_PATH_SIZE] = {0x00};
2125 int len = 0;
b915fda3 2126
e0165dcf 2127 len = strlen(Cmd);
2128 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2129 memcpy(filename, Cmd, len);
b915fda3 2130
e0165dcf 2131 FILE *f = fopen(filename, "r");
2132 if (!f) {
2133 PrintAndLog("couldn't open '%s'", filename);
2134 return 0;
2135 }
2136
2137 GraphTraceLen = 0;
2138 char line[80];
2139 while (fgets(line, sizeof (line), f)) {
2140 GraphBuffer[GraphTraceLen] = atoi(line);
2141 GraphTraceLen++;
2142 }
2143 fclose(f);
2144 PrintAndLog("loaded %d samples", GraphTraceLen);
2145 RepaintGraphWindow();
2146 return 0;
7fe9b0b7 2147}
2148
2149int CmdLtrim(const char *Cmd)
2150{
e0165dcf 2151 int ds = atoi(Cmd);
cc15a118 2152 if (GraphTraceLen<=0) return 0;
e0165dcf 2153 for (int i = ds; i < GraphTraceLen; ++i)
2154 GraphBuffer[i-ds] = GraphBuffer[i];
2155 GraphTraceLen -= ds;
7fe9b0b7 2156
e0165dcf 2157 RepaintGraphWindow();
2158 return 0;
7fe9b0b7 2159}
ec75f5c1 2160
2161// trim graph to input argument length
9ec1416a 2162int CmdRtrim(const char *Cmd)
2163{
e0165dcf 2164 int ds = atoi(Cmd);
9ec1416a 2165
e0165dcf 2166 GraphTraceLen = ds;
9ec1416a 2167
e0165dcf 2168 RepaintGraphWindow();
2169 return 0;
9ec1416a 2170}
7fe9b0b7 2171
f75b313b 2172// trim graph (middle) piece
2173int CmdMtrim(const char *Cmd) {
2174 int start = 0, stop = 0;
2175 sscanf(Cmd, "%i %i", &start, &stop);
2176
2177 if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;
2178 start++; //leave start position sample
2179
2180 GraphTraceLen -= stop - start;
2181 for (int i = 0; i < GraphTraceLen; i++) {
2182 GraphBuffer[start+i] = GraphBuffer[stop+i];
2183 }
2184 return 0;
2185}
2186
2187
7fe9b0b7 2188int CmdNorm(const char *Cmd)
2189{
e0165dcf 2190 int i;
2191 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2192
e0165dcf 2193 for (i = 10; i < GraphTraceLen; ++i) {
2194 if (GraphBuffer[i] > max)
2195 max = GraphBuffer[i];
2196 if (GraphBuffer[i] < min)
2197 min = GraphBuffer[i];
2198 }
7fe9b0b7 2199
e0165dcf 2200 if (max != min) {
2201 for (i = 0; i < GraphTraceLen; ++i) {
ba1a299c 2202 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 /
e0165dcf 2203 (max - min);
ba1a299c 2204 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2205 }
2206 }
2207 RepaintGraphWindow();
2208 return 0;
7fe9b0b7 2209}
2210
2211int CmdPlot(const char *Cmd)
2212{
e0165dcf 2213 ShowGraphWindow();
2214 return 0;
7fe9b0b7 2215}
2216
2217int CmdSave(const char *Cmd)
2218{
e0165dcf 2219 char filename[FILE_PATH_SIZE] = {0x00};
2220 int len = 0;
b915fda3 2221
e0165dcf 2222 len = strlen(Cmd);
2223 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2224 memcpy(filename, Cmd, len);
2225
b915fda3 2226
e0165dcf 2227 FILE *f = fopen(filename, "w");
2228 if(!f) {
2229 PrintAndLog("couldn't open '%s'", filename);
2230 return 0;
2231 }
2232 int i;
2233 for (i = 0; i < GraphTraceLen; i++) {
2234 fprintf(f, "%d\n", GraphBuffer[i]);
2235 }
2236 fclose(f);
2237 PrintAndLog("saved to '%s'", Cmd);
2238 return 0;
7fe9b0b7 2239}
2240
2241int CmdScale(const char *Cmd)
2242{
e0165dcf 2243 CursorScaleFactor = atoi(Cmd);
2244 if (CursorScaleFactor == 0) {
2245 PrintAndLog("bad, can't have zero scale");
2246 CursorScaleFactor = 1;
2247 }
2248 RepaintGraphWindow();
2249 return 0;
7fe9b0b7 2250}
2251
d51b2eda
MHS		 2252int CmdDirectionalThreshold(const char *Cmd)
2253{
e0165dcf 2254 int8_t upThres = param_get8(Cmd, 0);
2255 int8_t downThres = param_get8(Cmd, 1);
2256
2257 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2258
2259 int lastValue = GraphBuffer[0];
2260 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2261
2262 for (int i = 1; i < GraphTraceLen; ++i) {
2263 // Apply first threshold to samples heading up
2264 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2265 {
2266 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2267 GraphBuffer[i] = 1;
2268 }
2269 // Apply second threshold to samples heading down
2270 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2271 {
2272 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2273 GraphBuffer[i] = -1;
2274 }
2275 else
2276 {
2277 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2278 GraphBuffer[i] = GraphBuffer[i-1];
2279
2280 }
2281 }
2282 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2283 RepaintGraphWindow();
2284 return 0;
d51b2eda
MHS		 2285}
2286
7fe9b0b7 2287int CmdZerocrossings(const char *Cmd)
2288{
e0165dcf 2289 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2290 CmdHpf("");
2291
2292 int sign = 1;
2293 int zc = 0;
2294 int lastZc = 0;
2295
2296 for (int i = 0; i < GraphTraceLen; ++i) {
2297 if (GraphBuffer[i] * sign >= 0) {
2298 // No change in sign, reproduce the previous sample count.
2299 zc++;
2300 GraphBuffer[i] = lastZc;
2301 } else {
2302 // Change in sign, reset the sample count.
2303 sign = -sign;
2304 GraphBuffer[i] = lastZc;
2305 if (sign > 0) {
2306 lastZc = zc;
2307 zc = 0;
2308 }
2309 }
2310 }
2311
2312 RepaintGraphWindow();
2313 return 0;
7fe9b0b7 2314}
2315
f6821167
MHS		 2316int usage_data_bin2hex(){
2317 PrintAndLog("Usage: data bin2hex <binary_digits>");
2318 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
2319 return 0;
2320}
2321
2322/**
2323 * @brief Utility for conversion via cmdline.
2324 * @param Cmd
2325 * @return
2326 */
2327int Cmdbin2hex(const char *Cmd)
2328{
2329 int bg =0, en =0;
2330 if(param_getptr(Cmd, &bg, &en, 0))
2331 {
2332 return usage_data_bin2hex();
2333 }
2334 //Number of digits supplied as argument
2335 size_t length = en - bg +1;
2336 size_t bytelen = (length+7) / 8;
2337 uint8_t* arr = (uint8_t *) malloc(bytelen);
2338 memset(arr, 0, bytelen);
2339 BitstreamOut bout = { arr, 0, 0 };
2340
2341 for(; bg <= en ;bg++)
2342 {
2343 char c = Cmd[bg];
2344 if( c == '1') pushBit(&bout, 1);
2345 else if( c == '0') pushBit(&bout, 0);
2346 else PrintAndLog("Ignoring '%c'", c);
2347 }
2348
2349 if(bout.numbits % 8 != 0)
2350 {
2351 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
2352 }
2353
2354 //Uses printf instead of PrintAndLog since the latter
2355 // adds linebreaks to each printout - this way was more convenient since we don't have to
2356 // allocate a string and write to that first...
2357 for(size_t x = 0; x < bytelen ; x++)
2358 {
2359 printf("%02X", arr[x]);
2360 }
2361 printf("\n");
2362 free(arr);
2363 return 0;
2364}
2365
72c5877a 2366int usage_data_hex2bin() {
2367 PrintAndLog("Usage: data hex2bin <hex_digits>");
f6821167
MHS		 2368 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
2369 return 0;
2370
2371}
2372
2373int Cmdhex2bin(const char *Cmd)
2374{
2375 int bg =0, en =0;
2376 if(param_getptr(Cmd, &bg, &en, 0))
2377 {
2378 return usage_data_hex2bin();
2379 }
2380
2381
2382 while(bg <= en )
2383 {
2384 char x = Cmd[bg++];
2385 // capitalize
2386 if (x >= 'a' && x <= 'f')
2387 x -= 32;
2388 // convert to numeric value
2389 if (x >= '0' && x <= '9')
2390 x -= '0';
2391 else if (x >= 'A' && x <= 'F')
2392 x -= 'A' - 10;
2393 else
2394 continue;
2395
2396 //Uses printf instead of PrintAndLog since the latter
2397 // adds linebreaks to each printout - this way was more convenient since we don't have to
2398 // allocate a string and write to that first...
2399
2400 for(int i= 0 ; i < 4 ; ++i)
2401 printf("%d",(x >> (3 - i)) & 1);
2402 }
2403 printf("\n");
2404
2405 return 0;
2406}
2407
ba1a299c 2408static command_t CommandTable[] =
7fe9b0b7 2409{
e0165dcf 2410 {"help", CmdHelp, 1, "This help"},
49bbc60a 2411 {"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 2412 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2413 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
415274a7 2414 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"},
e0165dcf 2415 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2416 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
5d01f50a 2417 {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
e0165dcf 2418 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
e0165dcf 2419 {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
2420 {"dec", CmdDec, 1, "Decimate samples"},
2421 {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
b2c330b3 2422 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2423 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2424 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2425 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2426 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2427 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2428 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2429 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2430 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2431 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
f6821167 2432 {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2433 {"hide", CmdHide, 1, "Hide graph window"},
2434 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2435 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2436 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2437 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
f75b313b 2438 {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
fef74fdc 2439 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2440 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2441 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
ace26dbd 2442 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2443 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2444 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2445 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2446 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2447 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
f9f0e83b 2448 {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
e0165dcf 2449 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
709665b5 2450 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
e0165dcf 2451 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2452 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2453 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2454 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2455 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
2456 {NULL, NULL, 0, NULL}
7fe9b0b7 2457};
2458
2459int CmdData(const char *Cmd)
2460{
e0165dcf 2461 CmdsParse(CommandTable, Cmd);
2462 return 0;
7fe9b0b7 2463}
2464
2465int CmdHelp(const char *Cmd)
2466{
e0165dcf 2467 CmdsHelp(CommandTable);
2468 return 0;
7fe9b0b7 2469}
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