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CHG: 'lf em4x' - the em4x50 demod didn't calc ASKDemod_ext with a refenence bool.
[proxmark3-svn] / client / cmddata.c
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a553f267 1//-----------------------------------------------------------------------------
2// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3//
4// This code is licensed to you under the terms of the GNU GPL, version 2 or,
5// at your option, any later version. See the LICENSE.txt file for the text of
6// the license.
7//-----------------------------------------------------------------------------
8// Data and Graph commands
9//-----------------------------------------------------------------------------
10
eb891c38 11#include <stdio.h> // also included in util.h
12#include <string.h> // also included in util.h
13#include <limits.h> // for CmdNorm INT_MIN && INT_MAX
14#include "data.h" // also included in util.h
15#include "cmddata.h"
d51b2eda 16#include "util.h"
7fe9b0b7 17#include "cmdmain.h"
eb891c38 18#include "proxmark3.h"
19#include "ui.h" // for show graph controls
20#include "graph.h" // for graph data
21#include "cmdparser.h"// already included in cmdmain.h
22#include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h
23#include "lfdemod.h" // for demod code
24#include "crc.h" // for pyramid checksum maxim
25#include "crc16.h" // for FDXB demod checksum
26#include "loclass/cipherutils.h" // for decimating samples in getsamples
ad6219fc 27
4118b74d 28uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
92014925 29uint8_t g_debugMode = 0;
30size_t DemodBufferLen = 0;
7fe9b0b7 31static int CmdHelp(const char *Cmd);
32
a0c7eea7 33int usage_data_printdemodbuf(void){
34 PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
35 PrintAndLog("Options:");
36 PrintAndLog(" h This help");
37 PrintAndLog(" x output in hex (omit for binary output)");
38 PrintAndLog(" o <offset> enter offset in # of bits");
39 PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
40 return 0;
41}
42int usage_data_askem410xdemod(void){
43 PrintAndLog("Usage: data askem410xdemod [clock] <0|1> [maxError]");
44 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
45 PrintAndLog(" <invert>, 1 for invert output");
46 PrintAndLog(" [set maximum allowed errors], default = 100.");
47 PrintAndLog("");
48 PrintAndLog(" sample: data askem410xdemod = demod an EM410x Tag ID from GraphBuffer");
49 PrintAndLog(" : data askem410xdemod 32 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32");
50 PrintAndLog(" : data askem410xdemod 32 1 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/32 and inverting data");
51 PrintAndLog(" : data askem410xdemod 1 = demod an EM410x Tag ID from GraphBuffer while inverting data");
52 PrintAndLog(" : data askem410xdemod 64 1 0 = demod an EM410x Tag ID from GraphBuffer using a clock of RF/64 and inverting data and allowing 0 demod errors");
53 return 0;
54}
55int usage_data_manrawdecode(void){
56 PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
57 PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively");
58 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
59 PrintAndLog(" [invert] invert output");
60 PrintAndLog(" [maxErr] set number of errors allowed (default = 20)");
61 PrintAndLog("");
62 PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer");
63 return 0;
64}
65int usage_data_biphaserawdecode(void){
66 PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]");
67 PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0");
68 PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)");
69 PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
70 PrintAndLog("");
71 PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position");
72 PrintAndLog(" [invert <0|1>], set to 1 to invert output");
73 PrintAndLog(" [maxErr int], set max errors tolerated - default=20");
74 PrintAndLog("");
75 PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer");
76 PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output");
77 return 0;
78}
79int usage_data_rawdemod(void){
80 PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>");
81 PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ...");
82 PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2");
83 PrintAndLog(" <help> as 'h', prints the help for the specific modulation");
84 PrintAndLog(" <options> see specific modulation help for optional parameters");
85 PrintAndLog("");
86 PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod");
87 PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect");
88 PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect");
89 PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect");
90 PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect");
91 PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect");
92 PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect");
93 PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect");
94 return 0;
95}
96int usage_data_rawdemod_am(void){
97 PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
98 PrintAndLog(" ['s'] optional, check for Sequence Terminator");
99 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
100 PrintAndLog(" <invert>, 1 to invert output");
101 PrintAndLog(" [set maximum allowed errors], default = 100");
102 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
103 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
104 PrintAndLog("");
105 PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
106 PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
107 PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
108 PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
109 PrintAndLog(" : data rawdemod am 64 1 0 = demod an ask/manchester tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
110 return 0;
111}
112int usage_data_rawdemod_ab(void){
113 PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>");
114 PrintAndLog(" [offset], offset to begin biphase, default=0");
115 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
116 PrintAndLog(" <invert>, 1 to invert output");
117 PrintAndLog(" [set maximum allowed errors], default = 100");
118 PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)");
119 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
120 PrintAndLog(" NOTE: <invert> can be entered as second or third argument");
121 PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument");
122 PrintAndLog(" NOTE: any other arg must have previous args set to work");
123 PrintAndLog("");
124 PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester");
125 PrintAndLog("");
126 PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer");
127 PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified");
128 PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32");
129 PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data");
130 PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data");
131 PrintAndLog(" : data rawdemod ab 0 64 1 0 = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
132 PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
133 return 0;
134}
135int usage_data_rawdemod_ar(void){
136 PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]");
137 PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
138 PrintAndLog(" <invert>, 1 to invert output");
139 PrintAndLog(" [set maximum allowed errors], default = 100");
140 PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)");
141 PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
142 PrintAndLog("");
143 PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
144 PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
145 PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
146 PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
147 PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
148 PrintAndLog(" : data rawdemod ar 64 1 0 = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
149 PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
150 return 0;
151}
152int usage_data_rawdemod_fs(void){
153 PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
154 PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
155 PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
156 PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
157 PrintAndLog(" [fclow], small field clock length, omit for autodetect");
158 PrintAndLog("");
159 PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
160 PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
161 PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
162 PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
163 PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
164 PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
165 PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
166 return 0;
167}
168int usage_data_rawdemod_nr(void){
169 PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
170 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
171 PrintAndLog(" <invert>, 1 for invert output");
172 PrintAndLog(" [set maximum allowed errors], default = 100.");
173 PrintAndLog("");
174 PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
175 PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
176 PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
177 PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
178 PrintAndLog(" : data rawdemod nr 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
179 return 0;
180}
181int usage_data_rawdemod_p1(void){
182 PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]");
183 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
184 PrintAndLog(" <invert>, 1 for invert output");
185 PrintAndLog(" [set maximum allowed errors], default = 100.");
186 PrintAndLog("");
187 PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
188 PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
189 PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
190 PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
191 PrintAndLog(" : data rawdemod p1 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
192 return 0;
193}
194int usage_data_rawdemod_p2(void){
195 PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]");
196 PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
197 PrintAndLog(" <invert>, 1 for invert output");
198 PrintAndLog(" [set maximum allowed errors], default = 100.");
199 PrintAndLog("");
200 PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
201 PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
202 PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
203 PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
204 PrintAndLog(" : data rawdemod p2 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
205 return 0;
206}
207int usage_data_autocorr(void) {
208 PrintAndLog("Usage: data autocorr [window] [g]");
209 PrintAndLog("Options:");
210 PrintAndLog(" h This help");
211 PrintAndLog(" [window] window length for correlation - default = 4000");
212 PrintAndLog(" g save back to GraphBuffer (overwrite)");
213 return 0;
214}
215int usage_data_undecimate(void){
216 PrintAndLog("Usage: data undec [factor]");
217 PrintAndLog("This function performs un-decimation, by repeating each sample N times");
218 PrintAndLog("Options: ");
219 PrintAndLog(" h This help");
220 PrintAndLog(" factor The number of times to repeat each sample.[default:2]");
221 PrintAndLog("Example: 'data undec 3'");
222 return 0;
223}
224int usage_data_detectclock(void){
225 PrintAndLog("Usage: data detectclock [modulation] <clock>");
226 PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of");
227 PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)");
228 PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk");
229 PrintAndLog("");
230 PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer");
231 PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer");
232 PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer");
233 PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer");
234 return 0;
235}
236int usage_data_hex2bin(void){
237 PrintAndLog("Usage: data hex2bin <hex_digits>");
238 PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
239 return 0;
240}
241int usage_data_bin2hex(void){
242 PrintAndLog("Usage: data bin2hex <binary_digits>");
243 PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
244 return 0;
245}
c621ae06 246int usage_data_buffclear(void){
247 PrintAndLog("This function clears the bigbuff on deviceside");
248 PrintAndLog("Usage: data buffclear [h]");
249 PrintAndLog("Options:");
250 PrintAndLog(" h This help");
251 return 0;
252}
a0c7eea7 253
4118b74d 254//set the demod buffer with given array of binary (one bit per byte)
255//by marshmellow
ec75f5c1 256void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx)
4118b74d 257{
c621ae06 258 if (buff == NULL) return;
13d77ef9 259
c621ae06 260 if (size >= MAX_DEMOD_BUF_LEN)
13d77ef9 261 size = MAX_DEMOD_BUF_LEN;
c48211f7 262
263 for (size_t i = 0; i < size; i++)
c621ae06 264 DemodBuffer[i] = buff[startIdx++];
c48211f7 265
56d0fb8e 266 DemodBufferLen = size;
4118b74d 267}
268
c48211f7 269int CmdSetDebugMode(const char *Cmd) {
270 int demod = 0;
e0165dcf 271 sscanf(Cmd, "%i", &demod);
c48211f7 272 g_debugMode = (uint8_t)demod;
e0165dcf 273 return 1;
ec75f5c1 274}
275
4118b74d 276//by marshmellow
abd6112f 277void printDemodBuff(void)
4118b74d 278{
ba1a299c 279 int bitLen = DemodBufferLen;
c621ae06 280 if (bitLen < 1) {
ba1a299c 281 PrintAndLog("no bits found in demod buffer");
282 return;
283 }
c621ae06 284 if (bitLen > 512) bitLen=512; //max output to 512 bits if we have more - should be plenty
e0165dcf 285
9d7e9935 286 char *bin = sprint_bin_break(DemodBuffer, bitLen,16);
2767fc02 287 PrintAndLog("%s",bin);
4118b74d 288}
289
8d960002 290int CmdPrintDemodBuff(const char *Cmd)
291{
c621ae06 292 char hex[512] = {0x00};
2d2f7d19 293 bool hexMode = false;
294 bool errors = false;
bf32dd92 295 uint32_t offset = 0; //could be size_t but no param_get16...
296 uint32_t length = 512;
2d2f7d19 297 char cmdp = 0;
298 while(param_getchar(Cmd, cmdp) != 0x00)
299 {
300 switch(param_getchar(Cmd, cmdp))
301 {
302 case 'h':
303 case 'H':
304 return usage_data_printdemodbuf();
305 case 'x':
306 case 'X':
307 hexMode = true;
308 cmdp++;
309 break;
310 case 'o':
311 case 'O':
bf32dd92 312 offset = param_get32ex(Cmd, cmdp+1, 0, 10);
2d2f7d19 313 if (!offset) errors = true;
314 cmdp += 2;
315 break;
bf32dd92 316 case 'l':
317 case 'L':
318 length = param_get32ex(Cmd, cmdp+1, 512, 10);
319 if (!length) errors = true;
320 cmdp += 2;
321 break;
2d2f7d19 322 default:
323 PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
324 errors = true;
325 break;
326 }
327 if(errors) break;
e0165dcf 328 }
2d2f7d19 329 //Validations
330 if(errors) return usage_data_printdemodbuf();
31649387 331
332 if (DemodBufferLen == 0) {
333 PrintAndLog("Demodbuffer is empty");
334 return 0;
335 }
bf32dd92 336 length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
337 int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
2d2f7d19 338
339 if (hexMode){
340 char *buf = (char *) (DemodBuffer + offset);
bf32dd92 341 numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
2d2f7d19 342 numBits = binarraytohex(hex, buf, numBits);
e0165dcf 343 if (numBits==0) return 0;
2d2f7d19 344 PrintAndLog("DemodBuffer: %s",hex);
e0165dcf 345 } else {
52f2df61 346 PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
e0165dcf 347 }
348 return 1;
8d960002 349}
7fe9b0b7 350
2767fc02 351//by marshmellow
78f5b1a7 352//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
353int CmdGetBitStream(const char *Cmd)
354{
e0165dcf 355 CmdHpf(Cmd);
c621ae06 356 for (uint32_t i = 0; i < GraphTraceLen; i++)
357 GraphBuffer[i] = (GraphBuffer[i] >= 1) ? 1 : 0;
358
e0165dcf 359 RepaintGraphWindow();
360 return 0;
78f5b1a7 361}
362
d5a72d2f 363//by marshmellow
abd6112f 364//print 64 bit EM410x ID in multiple formats
b41534d1 365void printEM410x(uint32_t hi, uint64_t id)
2fc2150e 366{
e0165dcf 367 if (id || hi){
368 uint64_t iii=1;
369 uint64_t id2lo=0;
370 uint32_t ii=0;
371 uint32_t i=0;
372 for (ii=5; ii>0;ii--){
373 for (i=0;i<8;i++){
374 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
375 }
376 }
377 if (hi){
378 //output 88 bit em id
2767fc02 379 PrintAndLog("\nEM TAG ID : %06X%016llX", hi, id);
e0165dcf 380 } else{
381 //output 40 bit em id
2767fc02 382 PrintAndLog("\nEM TAG ID : %010llX", id);
383 PrintAndLog("Unique TAG ID : %010llX", id2lo);
e0165dcf 384 PrintAndLog("\nPossible de-scramble patterns");
385 PrintAndLog("HoneyWell IdentKey {");
386 PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF);
387 PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFFFF);
388 PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF));
389 PrintAndLog("DEZ 3.5A : %03lld.%05lld",(id>>32ll),(id & 0xFFFF));
390 PrintAndLog("DEZ 3.5B : %03lld.%05lld",(id & 0xFF000000) >> 24,(id & 0xFFFF));
391 PrintAndLog("DEZ 3.5C : %03lld.%05lld",(id & 0xFF0000) >> 16,(id & 0xFFFF));
392 PrintAndLog("DEZ 14/IK2 : %014lld",id);
393 PrintAndLog("DEZ 15/IK3 : %015lld",id2lo);
394 PrintAndLog("DEZ 20/ZK : %02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld%02lld",
395 (id2lo & 0xf000000000) >> 36,
396 (id2lo & 0x0f00000000) >> 32,
397 (id2lo & 0x00f0000000) >> 28,
398 (id2lo & 0x000f000000) >> 24,
399 (id2lo & 0x0000f00000) >> 20,
400 (id2lo & 0x00000f0000) >> 16,
401 (id2lo & 0x000000f000) >> 12,
402 (id2lo & 0x0000000f00) >> 8,
403 (id2lo & 0x00000000f0) >> 4,
404 (id2lo & 0x000000000f)
405 );
406 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
407 PrintAndLog("}\nOther : %05lld_%03lld_%08lld",(id&0xFFFF),((id>>16LL) & 0xFF),(id & 0xFFFFFF));
2767fc02 408 PrintAndLog("Pattern Paxton : %lld [0x%llX]", paxton, paxton);
e0165dcf 409
410 uint32_t p1id = (id & 0xFFFFFF);
411 uint8_t arr[32] = {0x00};
412 int i =0;
413 int j = 23;
414 for (; i < 24; ++i, --j ){
415 arr[i] = (p1id >> i) & 1;
416 }
417
418 uint32_t p1 = 0;
419
420 p1 |= arr[23] << 21;
421 p1 |= arr[22] << 23;
422 p1 |= arr[21] << 20;
423 p1 |= arr[20] << 22;
424
425 p1 |= arr[19] << 18;
426 p1 |= arr[18] << 16;
427 p1 |= arr[17] << 19;
428 p1 |= arr[16] << 17;
429
430 p1 |= arr[15] << 13;
431 p1 |= arr[14] << 15;
432 p1 |= arr[13] << 12;
433 p1 |= arr[12] << 14;
434
435 p1 |= arr[11] << 6;
436 p1 |= arr[10] << 2;
437 p1 |= arr[9] << 7;
438 p1 |= arr[8] << 1;
439
440 p1 |= arr[7] << 0;
441 p1 |= arr[6] << 8;
442 p1 |= arr[5] << 11;
443 p1 |= arr[4] << 3;
444
445 p1 |= arr[3] << 10;
446 p1 |= arr[2] << 4;
447 p1 |= arr[1] << 5;
448 p1 |= arr[0] << 9;
2767fc02 449 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
e0165dcf 450
451 uint16_t sebury1 = id & 0xFFFF;
452 uint8_t sebury2 = (id >> 16) & 0x7F;
453 uint32_t sebury3 = id & 0x7FFFFF;
2767fc02 454 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
e0165dcf 455 }
456 }
457 return;
eb191de6 458}
459
fef74fdc 460int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
13d77ef9 461{
fef74fdc 462 size_t idx = 0;
da1f16d6 463 size_t size = DemodBufferLen;
c621ae06 464 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
da1f16d6 465 memcpy(BitStream, DemodBuffer, size);
466 int ans = Em410xDecode(BitStream, &size, &idx, hi, lo);
467 if ( ans < 0){
e0165dcf 468 if (g_debugMode){
da1f16d6 469 if (ans == -1)
470 PrintAndLog("DEBUG: Error - Em410x not only 0|1 in decoded bitstream");
471 else if (ans == -3)
472 PrintAndLog("DEBUG: Error - Em410x Size not correct: %d", size);
473 else if (ans == -4)
474 PrintAndLog("DEBUG: Error - Em410x preamble not found");
475 else if (ans == -5)
476 PrintAndLog("DEBUG: Error - Em410x parity failed");
fef74fdc 477 }
da1f16d6 478 return 0;
e0165dcf 479 }
da1f16d6 480
481 //set GraphBuffer for clone or sim command
482 setDemodBuf(BitStream, size, idx);
483 if (g_debugMode){
bb73c58d 484 PrintAndLog("DEBUG: Em410x idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
da1f16d6 485 printDemodBuff();
486 }
487 if (verbose){
488 PrintAndLog("EM410x pattern found: ");
489 printEM410x(*hi, *lo);
490 }
491 return 1;
13d77ef9 492}
fef74fdc 493
494int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
495{
05164399 496 bool st = TRUE;
497 if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
fef74fdc 498 return AskEm410xDecode(verbose, hi, lo);
499}
500
e888ed8e 501//by marshmellow
e770c648 502//takes 3 arguments - clock, invert and maxErr as integers
503//attempts to demodulate ask while decoding manchester
504//prints binary found and saves in graphbuffer for further commands
505int CmdAskEM410xDemod(const char *Cmd)
506{
e0165dcf 507 char cmdp = param_getchar(Cmd, 0);
a0c7eea7 508 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
509 return usage_data_askem410xdemod();
510
e0165dcf 511 uint64_t lo = 0;
fef74fdc 512 uint32_t hi = 0;
513 return AskEm410xDemod(Cmd, &hi, &lo, true);
e770c648 514}
515
fef74fdc 516//by marshmellow
517//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
518// (amp may not be needed anymore)
519//verbose will print results and demoding messages
520//emSearch will auto search for EM410x format in bitstream
521//askType switches decode: ask/raw = 0, ask/manchester = 1
05164399 522int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
c621ae06 523 int invert = 0;
524 int clk = 0;
525 int maxErr = 100;
526 int maxLen = 0;
fef74fdc 527 char amp = param_getchar(Cmd, 0);
c621ae06 528 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
fef74fdc 529 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
bf32dd92 530 if (!maxLen) maxLen = BIGBUF_SIZE;
e0165dcf 531 if (invert != 0 && invert != 1) {
532 PrintAndLog("Invalid argument: %s", Cmd);
533 return 0;
534 }
535 if (clk==1){
536 invert=1;
537 clk=0;
538 }
539 size_t BitLen = getFromGraphBuf(BitStream);
31649387 540 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
fef74fdc 541 if (BitLen<255) return 0;
23f0a7d8 542 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
05164399 543 int foundclk = 0;
a38f5a07 544 //amp before ST check
bd09006a 545 if (amp == 'a' || amp == 'A')
a38f5a07 546 askAmp(BitStream, BitLen);
bd09006a 547
05164399 548 bool st = false;
549 if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
550 if (st) {
551 *stCheck = st;
552 clk = (clk == 0) ? foundclk : clk;
553 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
554 }
bd09006a 555
a38f5a07 556 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, 0, askType);
fef74fdc 557 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 558 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 559 return 0;
560 }
31649387 561 if (errCnt > maxErr){
2767fc02 562 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
563 return 0;
564 }
565 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 566
567 //output
e0165dcf 568 setDemodBuf(BitStream,BitLen,0);
fef74fdc 569 if (verbose || g_debugMode){
c621ae06 570 if (errCnt>0)
571 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
572 if (askType)
573 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
574 else
575 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 576 // Now output the bitstream to the scrollback by line of 16 bits
c621ae06 577 printDemodBuff();
fef74fdc 578 }
579 uint64_t lo = 0;
580 uint32_t hi = 0;
c621ae06 581 if (emSearch)
fef74fdc 582 AskEm410xDecode(true, &hi, &lo);
c621ae06 583
e0165dcf 584 return 1;
eb191de6 585}
05164399 586int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
587 bool st = false;
588 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
589}
eb191de6 590
4ac906d1 591//by marshmellow
fef74fdc 592//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 593//attempts to demodulate ask while decoding manchester
594//prints binary found and saves in graphbuffer for further commands
595int Cmdaskmandemod(const char *Cmd)
596{
e0165dcf 597 char cmdp = param_getchar(Cmd, 0);
a38f5a07 598 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
a0c7eea7 599
05164399 600 bool st = TRUE;
601 if (Cmd[0]=='s')
602 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
603 else if (Cmd[1] == 's')
604 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
c621ae06 605
fef74fdc 606 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 607}
608
eb191de6 609//by marshmellow
d5a72d2f 610//manchester decode
eb191de6 611//stricktly take 10 and 01 and convert to 0 and 1
612int Cmdmandecoderaw(const char *Cmd)
613{
c621ae06 614 int i = 0;
615 int errCnt = 0;
616 size_t size = 0;
617 int invert = 0;
0ad1a1d4 618 int maxErr = 20;
e0165dcf 619 char cmdp = param_getchar(Cmd, 0);
c621ae06 620 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
a0c7eea7 621
e0165dcf 622 if (DemodBufferLen==0) return 0;
c621ae06 623
624 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
625 int high = 0, low = 0;
626 for (; i < DemodBufferLen; ++i){
627 if (DemodBuffer[i] > high)
628 high=DemodBuffer[i];
629 else if(DemodBuffer[i] < low)
630 low=DemodBuffer[i];
631 BitStream[i] = DemodBuffer[i];
e0165dcf 632 }
1f918317 633 if (high>7 || low <0 ){
2767fc02 634 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 635 return 0;
636 }
1f918317 637
fef74fdc 638 sscanf(Cmd, "%i %i", &invert, &maxErr);
31649387 639 size = i;
640 errCnt = manrawdecode(BitStream, &size, invert);
c621ae06 641 if (errCnt >= maxErr){
e0165dcf 642 PrintAndLog("Too many errors: %d",errCnt);
643 return 0;
644 }
645 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 646 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
c621ae06 647 if (errCnt == 0){
e0165dcf 648 uint64_t id = 0;
649 uint32_t hi = 0;
650 size_t idx=0;
651 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
652 //need to adjust to set bitstream back to manchester encoded data
653 //setDemodBuf(BitStream, size, idx);
e0165dcf 654 printEM410x(hi, id);
655 }
656 }
657 return 1;
d5a72d2f 658}
659
660//by marshmellow
661//biphase decode
662//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 663//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
664// and "invert" default = 0 if 1 it will invert output
2767fc02 665// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 666int CmdBiphaseDecodeRaw(const char *Cmd)
667{
ba1a299c 668 size_t size=0;
b41534d1 669 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 670 char cmdp = param_getchar(Cmd, 0);
c621ae06 671 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
a0c7eea7 672
b41534d1 673 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
674 if (DemodBufferLen==0){
675 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 676 return 0;
677 }
b41534d1 678 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
679 memcpy(BitStream, DemodBuffer, DemodBufferLen);
680 size = DemodBufferLen;
1e090a61 681 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
c621ae06 682 if (errCnt < 0){
b41534d1 683 PrintAndLog("Error during decode:%d", errCnt);
684 return 0;
685 }
c621ae06 686 if (errCnt > maxErr){
b4fb11ba 687 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
688 return 0;
689 }
b41534d1 690
c621ae06 691 if (errCnt > 0)
2767fc02 692 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
c621ae06 693
b41534d1 694 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 695 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 696
c621ae06 697 if (offset)
698 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 699 return 1;
eb191de6 700}
701
b41534d1 702//by marshmellow
703// - ASK Demod then Biphase decode GraphBuffer samples
704int ASKbiphaseDemod(const char *Cmd, bool verbose)
705{
706 //ask raw demod GraphBuffer first
b4c1f167 707 int offset=0, clk=0, invert=0, maxErr=0;
708 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
1299c798 709
b41534d1 710 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
6c283951 711 size_t size = getFromGraphBuf(BitStream);
712 if (size == 0 ) {
713 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
714 return 0;
715 }
b10a759f 716 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
b4c1f167 717 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1299c798 718 if ( errCnt < 0 || errCnt > maxErr ) {
719 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
720 return 0;
721 }
722
723 //attempt to Biphase decode BitStream
724 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 725 if (errCnt < 0){
bb73c58d 726 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
b41534d1 727 return 0;
728 }
729 if (errCnt > maxErr) {
bb73c58d 730 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
b41534d1 731 return 0;
732 }
733 //success set DemodBuffer and return
734 setDemodBuf(BitStream, size, 0);
735 if (g_debugMode || verbose){
1299c798 736 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 737 printDemodBuff();
738 }
739 return 1;
740}
741//by marshmellow - see ASKbiphaseDemod
742int Cmdaskbiphdemod(const char *Cmd)
743{
e0165dcf 744 char cmdp = param_getchar(Cmd, 0);
c621ae06 745 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
a0c7eea7 746
e0165dcf 747 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 748}
749
8d960002 750//by marshmellow
751//attempts to demodulate and identify a G_Prox_II verex/chubb card
752//WARNING: if it fails during some points it will destroy the DemodBuffer data
753// but will leave the GraphBuffer intact.
754//if successful it will push askraw data back to demod buffer ready for emulation
755int CmdG_Prox_II_Demod(const char *Cmd)
756{
e0165dcf 757 if (!ASKbiphaseDemod(Cmd, FALSE)){
bb73c58d 758 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
e0165dcf 759 return 0;
760 }
761 size_t size = DemodBufferLen;
762 //call lfdemod.c demod for gProxII
763 int ans = gProxII_Demod(DemodBuffer, &size);
764 if (ans < 0){
bb73c58d 765 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
e0165dcf 766 return 0;
767 }
c728b2b4 768 //got a good demod of 96 bits
769 uint8_t ByteStream[8] = {0x00};
c621ae06 770 uint8_t xorKey = 0;
c728b2b4 771 size_t startIdx = ans + 6; //start after 6 bit preamble
772
773 uint8_t bits_no_spacer[90];
774 //so as to not mess with raw DemodBuffer copy to a new sample array
775 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
776 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
777 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
778 if (bitLen != 72) {
c621ae06 779 if (g_debugMode)
780 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
781 return 0;
782 }
c728b2b4 783 // get key and then get all 8 bytes of payload decoded
784 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
785 for (size_t idx = 0; idx < 8; idx++) {
786 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
bb73c58d 787 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
e0165dcf 788 }
31649387 789
790 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
e0165dcf 791 uint8_t fmtLen = ByteStream[0]>>2;
792 uint32_t FC = 0;
793 uint32_t Card = 0;
c728b2b4 794 //get raw 96 bits to print
e0165dcf 795 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
796 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
797 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
31649387 798 bool unknown = FALSE;
799 switch(fmtLen) {
800 case 36:
801 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
802 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
803 break;
804 case 26:
805 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
806 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
807 break;
808 default :
809 unknown = TRUE;
810 break;
e0165dcf 811 }
31649387 812 if ( !unknown)
813 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
814 else
815 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
816
e0165dcf 817 setDemodBuf(DemodBuffer+ans, 96, 0);
818 return 1;
8d960002 819}
820
a126332a 821//by marshmellow
822//see ASKDemod for what args are accepted
823int CmdVikingDemod(const char *Cmd)
824{
825 if (!ASKDemod(Cmd, false, false, 1)) {
bb73c58d 826 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
a126332a 827 return 0;
828 }
829 size_t size = DemodBufferLen;
830 //call lfdemod.c demod for Viking
831 int ans = VikingDemod_AM(DemodBuffer, &size);
832 if (ans < 0) {
bb73c58d 833 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
a126332a 834 return 0;
835 }
836 //got a good demod
837 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
838 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
839 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
840 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
841 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
842 PrintAndLog("Raw: %08X%08X", raw1,raw2);
843 setDemodBuf(DemodBuffer+ans, 64, 0);
844 return 1;
845}
846
fef74fdc 847//by marshmellow - see ASKDemod
4ac906d1 848int Cmdaskrawdemod(const char *Cmd)
849{
e0165dcf 850 char cmdp = param_getchar(Cmd, 0);
c621ae06 851 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
a0c7eea7 852
fef74fdc 853 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 854}
855
73d04bb4 856int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 857{
e0165dcf 858 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
859 size_t Correlation = 0;
860 int maxSum = 0;
861 int lastMax = 0;
862 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
863 for (int i = 0; i < GraphTraceLen - window; ++i) {
864 int sum = 0;
865 for (int j = 0; j < window; ++j) {
866 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
867 }
868 CorrelBuffer[i] = sum;
869 if (sum >= maxSum-100 && sum <= maxSum+100){
870 //another max
871 Correlation = i-lastMax;
872 lastMax = i;
873 if (sum > maxSum) maxSum = sum;
874 } else if (sum > maxSum){
875 maxSum=sum;
876 lastMax = i;
877 }
878 }
879 if (Correlation==0){
880 //try again with wider margin
881 for (int i = 0; i < GraphTraceLen - window; i++){
882 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
883 //another max
884 Correlation = i-lastMax;
885 lastMax = i;
886 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
887 }
888 }
889 }
890 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
891
892 if (SaveGrph){
893 GraphTraceLen = GraphTraceLen - window;
894 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
895 RepaintGraphWindow();
896 }
897 return Correlation;
73d04bb4 898}
7fe9b0b7 899
73d04bb4 900int CmdAutoCorr(const char *Cmd)
901{
e0165dcf 902 char cmdp = param_getchar(Cmd, 0);
e3f9c50d 903 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
e0165dcf 904 int window = 4000; //set default
c621ae06 905 char grph = 0;
e0165dcf 906 bool updateGrph = FALSE;
907 sscanf(Cmd, "%i %c", &window, &grph);
908
909 if (window >= GraphTraceLen) {
c621ae06 910 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
e0165dcf 911 return 0;
912 }
c621ae06 913 if (grph == 'g') updateGrph = TRUE;
e0165dcf 914 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 915}
916
917int CmdBitsamples(const char *Cmd)
918{
e0165dcf 919 int cnt = 0;
920 uint8_t got[12288];
952a8bb5 921
a0c7eea7 922 GetFromBigBuf(got, sizeof(got), 0);
923 WaitForResponse(CMD_ACK, NULL);
7fe9b0b7 924
a0c7eea7 925 for (int j = 0; j < sizeof(got); j++) {
926 for (int k = 0; k < 8; k++) {
c621ae06 927 if(got[j] & (1 << (7 - k)))
a0c7eea7 928 GraphBuffer[cnt++] = 1;
c621ae06 929 else
a0c7eea7 930 GraphBuffer[cnt++] = 0;
a0c7eea7 931 }
e0165dcf 932 }
933 GraphTraceLen = cnt;
934 RepaintGraphWindow();
935 return 0;
7fe9b0b7 936}
937
7fe9b0b7 938int CmdBuffClear(const char *Cmd)
939{
c621ae06 940 char cmdp = param_getchar(Cmd, 0);
941 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
942
a0c7eea7 943 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
e0165dcf 944 SendCommand(&c);
945 ClearGraph(true);
946 return 0;
7fe9b0b7 947}
948
949int CmdDec(const char *Cmd)
950{
a0c7eea7 951 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
e0165dcf 952 GraphBuffer[i] = GraphBuffer[i * 2];
a0c7eea7 953
954 GraphTraceLen >>= 2;
e0165dcf 955 PrintAndLog("decimated by 2");
956 RepaintGraphWindow();
957 return 0;
7fe9b0b7 958}
698b649e
MHS		 959/**
960 * Undecimate - I'd call it 'interpolate', but we'll save that
961 * name until someone does an actual interpolation command, not just
962 * blindly repeating samples
963 * @param Cmd
964 * @return
965 */
966int CmdUndec(const char *Cmd)
967{
a0c7eea7 968 char cmdp = param_getchar(Cmd, 0);
c621ae06 969 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
c856ceae 970
1d42f25f 971 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
a0c7eea7 972
698b649e 973 //We have memory, don't we?
c621ae06 974 int swap[MAX_GRAPH_TRACE_LEN] = {0};
975 uint32_t g_index = 0, s_index = 0;
1d42f25f 976 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
698b649e 977 {
c856ceae 978 int count = 0;
1d42f25f 979 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
c856ceae 980 swap[s_index+count] = GraphBuffer[g_index];
1d42f25f 981 s_index += count;
982 g_index++;
698b649e 983 }
698b649e 984
1d42f25f 985 memcpy(GraphBuffer, swap, s_index * sizeof(int));
c856ceae
MHS		 986 GraphTraceLen = s_index;
987 RepaintGraphWindow();
698b649e
MHS		 988 return 0;
989}
7fe9b0b7 990
ec75f5c1 991//by marshmellow
992//shift graph zero up or down based on input + or -
993int CmdGraphShiftZero(const char *Cmd)
994{
7d0efb37 995 int shift = 0, shiftedVal = 0;
e0165dcf 996 //set options from parameters entered with the command
997 sscanf(Cmd, "%i", &shift);
7d0efb37 998
c621ae06 999 for(int i = 0; i < GraphTraceLen; i++){
1000 if ( i+shift >= GraphTraceLen)
1001 shiftedVal = GraphBuffer[i];
1002 else
1003 shiftedVal = GraphBuffer[i] + shift;
1004
7d0efb37 1005 if (shiftedVal > 127)
1006 shiftedVal = 127;
1007 else if (shiftedVal < -127)
1008 shiftedVal = -127;
1009 GraphBuffer[i] = shiftedVal;
e0165dcf 1010 }
1011 CmdNorm("");
1012 return 0;
ec75f5c1 1013}
1014
6de43508 1015//by marshmellow
1016//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 1017//similar to dirtheshold, threshold commands
6de43508 1018//takes a threshold length which is the measured length between two samples then determines an edge
1019int CmdAskEdgeDetect(const char *Cmd)
1020{
e0165dcf 1021 int thresLen = 25;
180ec86e 1022 int last = 0;
e0165dcf 1023 sscanf(Cmd, "%i", &thresLen);
49bbc60a 1024
180ec86e 1025 for(int i = 1; i < GraphTraceLen; ++i){
1026 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1027 last = 127;
1028 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1029 last = -127;
1030
1031 GraphBuffer[i-1] = last;
e0165dcf 1032 }
1033 RepaintGraphWindow();
e0165dcf 1034 return 0;
6de43508 1035}
1036
7fe9b0b7 1037/* Print our clock rate */
ba1a299c 1038// uses data from graphbuffer
f3bf15e4 1039// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 1040int CmdDetectClockRate(const char *Cmd)
1041{
f3bf15e4 1042 char cmdp = param_getchar(Cmd, 0);
a0c7eea7 1043 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1044 return usage_data_detectclock();
1045
1046 int ans = 0;
1047 switch ( cmdp ) {
1048 case 'a' :
1049 case 'A' :
1050 ans = GetAskClock(Cmd+1, true, false);
1051 break;
1052 case 'f' :
1053 case 'F' :
1054 ans = GetFskClock("", true, false);
1055 break;
1056 case 'n' :
1057 case 'N' :
1058 ans = GetNrzClock("", true, false);
1059 break;
1060 case 'p' :
1061 case 'P' :
1062 ans = GetPskClock("", true, false);
1063 break;
1064 default :
1065 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1066 break;
f3bf15e4 1067 }
1068 return ans;
7fe9b0b7 1069}
66707a3b 1070
2767fc02 1071char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1072{
98b2a3a1 1073 static char fType[8];
1074 memset(fType, 0x00, 8);
1075 char *fskType = fType;
2767fc02 1076 if (fchigh==10 && fclow==8){
1077 if (invert) //fsk2a
1fe0992d 1078 memcpy(fskType, "FSK2a", 5);
2767fc02 1079 else //fsk2
1fe0992d 1080 memcpy(fskType, "FSK2", 4);
2767fc02 1081 } else if (fchigh == 8 && fclow == 5) {
1082 if (invert)
1fe0992d 1083 memcpy(fskType, "FSK1", 4);
2767fc02 1084 else
1fe0992d 1085 memcpy(fskType, "FSK1a", 5);
2767fc02 1086 } else {
1fe0992d 1087 memcpy(fskType, "FSK??", 5);
2767fc02 1088 }
1089 return fskType;
1090}
1091
2fc2150e 1092//by marshmellow
eb191de6 1093//fsk raw demod and print binary
6de43508 1094//takes 4 arguments - Clock, invert, fchigh, fclow
1095//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 1096int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 1097{
e0165dcf 1098 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
3f267966 1099 uint8_t rfLen, invert, fchigh, fclow;
e0165dcf 1100
3f267966 1101 //set defaults
e0165dcf 1102 //set options from parameters entered with the command
9332b857 1103 rfLen = param_get8(Cmd, 0);
1104 invert = param_get8(Cmd, 1);
1105 fchigh = param_get8(Cmd, 2);
1106 fclow = param_get8(Cmd, 3);
e0165dcf 1107 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
98b2a3a1 1108 if (rfLen==1) {
2eec55c8 1109 invert = 1; //if invert option only is used
e0165dcf 1110 rfLen = 0;
98b2a3a1 1111 }
e0165dcf 1112 }
1113
1114 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1115 size_t BitLen = getFromGraphBuf(BitStream);
1116 if (BitLen==0) return 0;
1117 //get field clock lengths
98b2a3a1 1118 uint16_t fcs=0;
bf32dd92 1119 if (!fchigh || !fclow) {
98b2a3a1 1120 fcs = countFC(BitStream, BitLen, 1);
1121 if (!fcs) {
1122 fchigh = 10;
1123 fclow = 8;
1124 } else {
1125 fchigh = (fcs >> 8) & 0x00FF;
1126 fclow = fcs & 0x00FF;
e0165dcf 1127 }
1128 }
1129 //get bit clock length
98b2a3a1 1130 if (!rfLen) {
e0165dcf 1131 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
bf32dd92 1132 if (!rfLen) rfLen = 50;
e0165dcf 1133 }
3f267966 1134 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
98b2a3a1 1135 if (size > 0) {
3f267966 1136 setDemodBuf(BitStream, size, 0);
e0165dcf 1137
1138 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 1139 if (verbose || g_debugMode) {
c621ae06 1140 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
3f267966 1141 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
2767fc02 1142 printDemodBuff();
e0165dcf 1143 }
e0165dcf 1144 return 1;
3f267966 1145 } else {
2767fc02 1146 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 1147 }
1148 return 0;
b3b70669 1149}
1150
4ac906d1 1151//by marshmellow
1152//fsk raw demod and print binary
1153//takes 4 arguments - Clock, invert, fchigh, fclow
1154//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1155int CmdFSKrawdemod(const char *Cmd)
1156{
e0165dcf 1157 char cmdp = param_getchar(Cmd, 0);
a38f5a07 1158 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
a0c7eea7 1159
e0165dcf 1160 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1161}
1162
eb191de6 1163//by marshmellow (based on existing demod + holiman's refactor)
1164//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1165//print full HID Prox ID and some bit format details if found
b3b70669 1166int CmdFSKdemodHID(const char *Cmd)
1167{
e0165dcf 1168 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1169 uint32_t hi2=0, hi=0, lo=0;
1170
c621ae06 1171 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
e0165dcf 1172 size_t BitLen = getFromGraphBuf(BitStream);
1173 if (BitLen==0) return 0;
1174 //get binary from fsk wave
1175 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1176 if (idx<0){
1177 if (g_debugMode){
1178 if (idx==-1){
bb73c58d 1179 PrintAndLog("DEBUG: Error - HID just noise detected");
e0165dcf 1180 } else if (idx == -2) {
bb73c58d 1181 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
e0165dcf 1182 } else if (idx == -3) {
bb73c58d 1183 PrintAndLog("DEBUG: Error - HID preamble not found");
e0165dcf 1184 } else if (idx == -4) {
bb73c58d 1185 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
e0165dcf 1186 } else {
bb73c58d 1187 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
e0165dcf 1188 }
1189 }
1190 return 0;
1191 }
1192 if (hi2==0 && hi==0 && lo==0) {
bb73c58d 1193 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
e0165dcf 1194 return 0;
1195 }
1196 if (hi2 != 0){ //extra large HID tags
c621ae06 1197 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
e0165dcf 1198 }
1199 else { //standard HID tags <38 bits
1200 uint8_t fmtLen = 0;
1201 uint32_t fc = 0;
1202 uint32_t cardnum = 0;
1203 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1204 uint32_t lo2=0;
1205 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1206 uint8_t idx3 = 1;
1207 while(lo2>1){ //find last bit set to 1 (format len bit)
1208 lo2=lo2>>1;
1209 idx3++;
1210 }
1211 fmtLen =idx3+19;
1212 fc =0;
1213 cardnum=0;
1214 if(fmtLen==26){
1215 cardnum = (lo>>1)&0xFFFF;
1216 fc = (lo>>17)&0xFF;
1217 }
1218 if(fmtLen==34){
1219 cardnum = (lo>>1)&0xFFFF;
1220 fc= ((hi&1)<<15)|(lo>>17);
1221 }
1222 if(fmtLen==35){
1223 cardnum = (lo>>1)&0xFFFFF;
1224 fc = ((hi&1)<<11)|(lo>>21);
1225 }
1226 }
1227 else { //if bit 38 is not set then 37 bit format is used
1228 fmtLen = 37;
1229 fc = 0;
1230 cardnum = 0;
1231 if(fmtLen == 37){
1232 cardnum = (lo>>1)&0x7FFFF;
1233 fc = ((hi&0xF)<<12)|(lo>>20);
1234 }
1235 }
c621ae06 1236 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
e0165dcf 1237 }
1238 setDemodBuf(BitStream,BitLen,idx);
1239 if (g_debugMode){
bb73c58d 1240 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1241 printDemodBuff();
1242 }
1243 return 1;
ec75f5c1 1244}
1245
04d2721b 1246//by marshmellow
1247//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1248//print full Paradox Prox ID and some bit format details if found
1249int CmdFSKdemodParadox(const char *Cmd)
1250{
e0165dcf 1251 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1252 uint32_t hi2=0, hi=0, lo=0;
1253
1254 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1255 size_t BitLen = getFromGraphBuf(BitStream);
1256 if (BitLen==0) return 0;
1257 //get binary from fsk wave
1258 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1259 if (idx<0){
1260 if (g_debugMode){
1261 if (idx==-1){
bb73c58d 1262 PrintAndLog("DEBUG: Error - Paradox just noise detected");
e0165dcf 1263 } else if (idx == -2) {
bb73c58d 1264 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
e0165dcf 1265 } else if (idx == -3) {
bb73c58d 1266 PrintAndLog("DEBUG: Error - Paradox preamble not found");
e0165dcf 1267 } else if (idx == -4) {
bb73c58d 1268 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
e0165dcf 1269 } else {
bb73c58d 1270 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
e0165dcf 1271 }
1272 }
1273 return 0;
1274 }
1275 if (hi2==0 && hi==0 && lo==0){
bb73c58d 1276 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
e0165dcf 1277 return 0;
1278 }
1279 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1280 uint32_t cardnum = (lo>>10)&0xFFFF;
1281 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1282 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1283 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1284
1285 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1286 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1287 setDemodBuf(BitStream,BitLen,idx);
1288 if (g_debugMode){
bb73c58d 1289 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1290 printDemodBuff();
1291 }
1292 return 1;
b3b70669 1293}
1294
2fc2150e 1295//by marshmellow
eb191de6 1296//IO-Prox demod - FSK RF/64 with preamble of 000000001
1297//print ioprox ID and some format details
b3b70669 1298int CmdFSKdemodIO(const char *Cmd)
1299{
eb911aa8 1300 int retval = 0;
1301 int idx = 0;
1302 char crcStr[20];
1303 memset(crcStr, 0x00, sizeof(crcStr) );
1304
e0165dcf 1305 //something in graphbuffer?
1306 if (GraphTraceLen < 65) {
bb73c58d 1307 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
eb911aa8 1308 return retval;
e0165dcf 1309 }
1310 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
eb911aa8 1311 size_t bitlen = getFromGraphBuf(BitStream);
1312 if (bitlen == 0) return retval;
e0165dcf 1313
1314 //get binary from fsk wave
eb911aa8 1315 idx = IOdemodFSK(BitStream, bitlen);
e0165dcf 1316 if (idx<0){
1317 if (g_debugMode){
1318 if (idx==-1){
bb73c58d 1319 PrintAndLog("DEBUG: Error - IO prox just noise detected");
e0165dcf 1320 } else if (idx == -2) {
bb73c58d 1321 PrintAndLog("DEBUG: Error - IO prox not enough samples");
e0165dcf 1322 } else if (idx == -3) {
bb73c58d 1323 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
e0165dcf 1324 } else if (idx == -4) {
bb73c58d 1325 PrintAndLog("DEBUG: Error - IO prox preamble not found");
e0165dcf 1326 } else if (idx == -5) {
bb73c58d 1327 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
e0165dcf 1328 } else {
bb73c58d 1329 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
e0165dcf 1330 }
1331 }
eb911aa8 1332 return retval;
e0165dcf 1333 }
1334 if (idx==0){
2767fc02 1335 if (g_debugMode){
bb73c58d 1336 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
eb911aa8 1337 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1338 }
eb911aa8 1339 return retval;
e0165dcf 1340 }
1341 //Index map
1342 //0 10 20 30 40 50 60
1343 //| | | | | | |
1344 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1345 //-----------------------------------------------------------------------------
1346 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1347 //
1348 //XSF(version)facility:codeone+codetwo (raw)
1349 //Handle the data
eb911aa8 1350 if (idx + 64 > bitlen) {
bb73c58d 1351 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
eb911aa8 1352 return retval;
e0165dcf 1353 }
eb911aa8 1354
dc3a5846 1355 if (g_debugMode) {
1356 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]);
1357 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]);
1358 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]);
1359 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]);
1360 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]);
1361 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]);
1362 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]);
1363 }
1364
e0165dcf 1365 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1366 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1367 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1368 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1369 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1370 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1371 uint16_t calccrc = 0;
1372
eb911aa8 1373 for (uint8_t i = 1; i < 6; ++i){
1374 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
e0165dcf 1375 }
1376 calccrc &= 0xff;
1377 calccrc = 0xff - calccrc;
1378
eb911aa8 1379 if (crc == calccrc) {
1380 snprintf(crcStr, 3, "ok");
1381 retval = 1;
1382 } else {
bb73c58d 1383 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
eb911aa8 1384
1385 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1386 retval = 0;
1387 }
e0165dcf 1388
eb911aa8 1389 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
e0165dcf 1390 setDemodBuf(BitStream,64,idx);
1391 if (g_debugMode){
bb73c58d 1392 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
e0165dcf 1393 printDemodBuff();
eb911aa8 1394 }
1395 return retval;
b3b70669 1396}
1e090a61 1397
1e090a61 1398//by marshmellow
1399//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1400//print full AWID Prox ID and some bit format details if found
1401int CmdFSKdemodAWID(const char *Cmd)
1402{
e0165dcf 1403 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1404 size_t size = getFromGraphBuf(BitStream);
1405 if (size==0) return 0;
1406
1407 //get binary from fsk wave
1408 int idx = AWIDdemodFSK(BitStream, &size);
1409 if (idx<=0){
eb891c38 1410 if (g_debugMode){
e0165dcf 1411 if (idx == -1)
bb73c58d 1412 PrintAndLog("DEBUG: Error - AWID not enough samples");
e0165dcf 1413 else if (idx == -2)
bb73c58d 1414 PrintAndLog("DEBUG: Error - AWID only noise found");
e0165dcf 1415 else if (idx == -3)
bb73c58d 1416 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
e0165dcf 1417 else if (idx == -4)
1418 PrintAndLog("DEBUG: Error - AWID preamble not found");
1419 else if (idx == -5)
bb73c58d 1420 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
e0165dcf 1421 else
bb73c58d 1422 PrintAndLog("DEBUG: Error - AWID error %d",idx);
e0165dcf 1423 }
1424 return 0;
1425 }
1426
1427 // Index map
1428 // 0 10 20 30 40 50 60
1429 // | | | | | | |
1430 // 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
1431 // -----------------------------------------------------------------------------
70459879 1432 // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
e0165dcf 1433 // 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
1434 // |---26 bit---| |-----117----||-------------142-------------|
1435 // b = format bit len, o = odd parity of last 3 bits
1436 // f = facility code, c = card number
1437 // w = wiegand parity
1438 // (26 bit format shown)
1e090a61 1439
e0165dcf 1440 //get raw ID before removing parities
1441 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1442 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1443 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1444 setDemodBuf(BitStream,96,idx);
1445
1446 size = removeParity(BitStream, idx+8, 4, 1, 88);
1447 if (size != 66){
bb73c58d 1448 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
e0165dcf 1449 return 0;
1450 }
1451 // ok valid card found!
1452
1453 // Index map
1454 // 0 10 20 30 40 50 60
1455 // | | | | | | |
1456 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1457 // -----------------------------------------------------------------------------
1458 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1459 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1460 // |26 bit| |-117--| |-----142------|
204b7084 1461 //
6a4271d1 1462 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1463 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1464 // |50 bit| |----4000------| |-----------2248975------------|
e0165dcf 1465 // b = format bit len, o = odd parity of last 3 bits
1466 // f = facility code, c = card number
1467 // w = wiegand parity
e0165dcf 1468
1469 uint32_t fc = 0;
1470 uint32_t cardnum = 0;
1471 uint32_t code1 = 0;
1472 uint32_t code2 = 0;
204b7084 1473 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
87c10b2a 1474
204b7084 1475 switch(fmtLen) {
1476 case 26:
1477 fc = bytebits_to_byte(BitStream + 9, 8);
1478 cardnum = bytebits_to_byte(BitStream + 17, 16);
1479 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
6a4271d1 1480 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1481 break;
87c10b2a 1482 case 34:
1483 fc = bytebits_to_byte(BitStream + 9, 8);
1484 cardnum = bytebits_to_byte(BitStream + 17, 24);
1485 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1486 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1487 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1488 break;
1489 case 37:
1490 fc = bytebits_to_byte(BitStream + 9, 13);
1491 cardnum = bytebits_to_byte(BitStream + 22, 18);
1492 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1493 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1494 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1495 break;
1496 // case 40:
1497 // break;
204b7084 1498 case 50:
1499 fc = bytebits_to_byte(BitStream + 9, 16);
1500 cardnum = bytebits_to_byte(BitStream + 25, 32);
1501 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1502 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
6a4271d1 1503 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
204b7084 1504 break;
1505 default:
1506 if (fmtLen > 32 ) {
1507 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1508 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1509 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
6a4271d1 1510 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
204b7084 1511 } else {
1512 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1513 code1 = bytebits_to_byte(BitStream+8,fmtLen);
6a4271d1 1514 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1515 }
1516 break;
e0165dcf 1517 }
204b7084 1518
e0165dcf 1519 if (g_debugMode){
bb73c58d 1520 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
e0165dcf 1521 printDemodBuff();
1522 }
e0165dcf 1523 return 1;
1e090a61 1524}
1525
1526//by marshmellow
1527//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1528//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1529int CmdFSKdemodPyramid(const char *Cmd)
1530{
e0165dcf 1531 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1532 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1533 size_t size = getFromGraphBuf(BitStream);
1534 if (size==0) return 0;
1535
1536 //get binary from fsk wave
1537 int idx = PyramiddemodFSK(BitStream, &size);
1538 if (idx < 0){
eb891c38 1539 if (g_debugMode){
e0165dcf 1540 if (idx == -5)
c08c796e 1541 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
e0165dcf 1542 else if (idx == -1)
c08c796e 1543 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
e0165dcf 1544 else if (idx == -2)
c08c796e 1545 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
e0165dcf 1546 else if (idx == -3)
c08c796e 1547 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
e0165dcf 1548 else if (idx == -4)
c08c796e 1549 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
e0165dcf 1550 else
c08c796e 1551 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
e0165dcf 1552 }
1553 return 0;
1554 }
1555 // Index map
1556 // 0 10 20 30 40 50 60
1557 // | | | | | | |
1558 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1559 // -----------------------------------------------------------------------------
1560 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1561 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1562
1563 // 64 70 80 90 100 110 120
1564 // | | | | | | |
1565 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1566 // -----------------------------------------------------------------------------
1567 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1568 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1569 // |---115---||---------71---------|
1570 // s = format start bit, o = odd parity of last 7 bits
1571 // f = facility code, c = card number
1572 // w = wiegand parity, x = extra space for other formats
71cb7328 1573 // p = CRC8maxim checksum
e0165dcf 1574 // (26 bit format shown)
1575
1576 //get bytes for checksum calc
1577 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1578 uint8_t csBuff[14] = {0x00};
1579 for (uint8_t i = 0; i < 13; i++){
1580 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1581 }
1582 //check checksum calc
1583 //checksum calc thanks to ICEMAN!!
c08c796e 1584 uint32_t checkCS = CRC8Maxim(csBuff, 13);
e0165dcf 1585
1586 //get raw ID before removing parities
c08c796e 1587 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1588 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1589 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1590 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1591 setDemodBuf(BitStream, 128, idx);
e0165dcf 1592
1593 size = removeParity(BitStream, idx+8, 8, 1, 120);
1594 if (size != 105){
c08c796e 1595 if (g_debugMode) {
1596 if ( size == 0)
1597 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1598 else
1599 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1600 }
e0165dcf 1601 return 0;
1602 }
1603
1604 // ok valid card found!
1605
1606 // Index map
1607 // 0 10 20 30 40 50 60 70
1608 // | | | | | | | |
1609 // 01234567890123456789012345678901234567890123456789012345678901234567890
1610 // -----------------------------------------------------------------------
1611 // 00000000000000000000000000000000000000000000000000000000000000000000000
1612 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1613
1614 // 71 80 90 100
1615 // | | | |
1616 // 1 2 34567890 1234567890123456 7 8901234
1617 // ---------------------------------------
1618 // 1 1 01110011 0000000001000110 0 1001010
1619 // s w ffffffff cccccccccccccccc w ppppppp
1620 // |--115-| |------71------|
1621 // s = format start bit, o = odd parity of last 7 bits
1622 // f = facility code, c = card number
1623 // w = wiegand parity, x = extra space for other formats
71cb7328 1624 // p = CRC8-Maxim checksum
e0165dcf 1625 // (26 bit format shown)
1626
1627 //find start bit to get fmtLen
1628 int j;
71cb7328 1629 for (j=0; j < size; ++j){
e0165dcf 1630 if(BitStream[j]) break;
1631 }
71cb7328 1632
e0165dcf 1633 uint8_t fmtLen = size-j-8;
1634 uint32_t fc = 0;
1635 uint32_t cardnum = 0;
1636 uint32_t code1 = 0;
71cb7328 1637
1638 if ( fmtLen == 26 ){
e0165dcf 1639 fc = bytebits_to_byte(BitStream+73, 8);
1640 cardnum = bytebits_to_byte(BitStream+81, 16);
1641 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1642 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);
71cb7328 1643 } else if (fmtLen == 45) {
1644 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
e0165dcf 1645 fc = bytebits_to_byte(BitStream+53, 10);
1646 cardnum = bytebits_to_byte(BitStream+63, 32);
1647 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1648 } else {
1649 cardnum = bytebits_to_byte(BitStream+81, 16);
4b3655e7 1650 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
e0165dcf 1651 }
1652 if (checksum == checkCS)
1653 PrintAndLog("Checksum %02x passed", checksum);
1654 else
1655 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1656
1657 if (g_debugMode){
c08c796e 1658 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
e0165dcf 1659 printDemodBuff();
1660 }
1661 return 1;
1e090a61 1662}
1663
ad6219fc 1664// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
7f96433c 1665// 8 databits + 1 parity (1)
0df669a2 1666// CIITT 16 chksum
1667// NATIONAL CODE, ICAR database
ad6219fc 1668// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
0df669a2 1669// FLAG (animal/non-animal)
22a6a62f 1670/*
167138 IDbits
167210 country code
16731 extra app bit
167414 reserved bits
16751 animal bit
167616 ccitt CRC chksum over 64bit ID CODE.
167724 appli bits.
1678
ad6219fc 1679-- sample: 985121004515220 [ 37FF65B88EF94 ]
22a6a62f 1680*/
ad6219fc 1681int CmdFDXBdemodBI(const char *Cmd){
7f96433c 1682
1683 int invert = 1;
1684 int clk = 32;
1685 int errCnt = 0;
ad6219fc 1686 int maxErr = 0;
7f96433c 1687 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1688 size_t size = getFromGraphBuf(BitStream);
1689
ad6219fc 1690 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1691 if ( errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1692 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
0df669a2 1693 return 0;
1694 }
615f21dd 1695
ad6219fc 1696 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1697 if (errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1698 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
0df669a2 1699 return 0;
7f96433c 1700 }
0df669a2 1701
ad6219fc 1702 int preambleIndex = FDXBdemodBI(BitStream, &size);
7f96433c 1703 if (preambleIndex < 0){
bb73c58d 1704 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
7f96433c 1705 return 0;
1706 }
6426f6ba 1707 if (size != 128) {
bb73c58d 1708 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
6426f6ba 1709 return 0;
1710 }
0df669a2 1711
ad6219fc 1712 setDemodBuf(BitStream, 128, preambleIndex);
7f96433c 1713
b10a759f 1714 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
a71ece51 1715 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
b10a759f 1716 if ( size != 104 ) {
bb73c58d 1717 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
ad6219fc 1718 return 0;
0df669a2 1719 }
ad6219fc 1720 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
ad6219fc 1721
a71ece51 1722 //got a good demod
ad6219fc 1723 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1724 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1725 uint8_t dataBlockBit = BitStream[48];
1726 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1727 uint8_t animalBit = BitStream[63];
a71ece51 1728 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
ad6219fc 1729 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1730
a71ece51 1731 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
ad6219fc 1732 uint8_t raw[8];
1733 num_to_bytes(rawid, 8, raw);
a71ece51 1734
1735 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1736
1737 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1738 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
ad6219fc 1739 PrintAndLog("National Code: %012llu", NationalCode);
a71ece51 1740 PrintAndLog("CountryCode: %04u", countryCode);
c48211f7 1741
1742 PrintAndLog("Reserved/RFU: %u", reservedCode);
1743 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1744 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
a71ece51 1745 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
c48211f7 1746
1747 if (g_debugMode) {
1748 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1749 char *bin = sprint_bin_break(BitStream,size,16);
1750 PrintAndLog("DEBUG BinStream:\n%s",bin);
1751 }
615f21dd 1752 return 1;
1753}
1754
1755
e770c648 1756//by marshmellow
1757//attempt to psk1 demod graph buffer
4ac906d1 1758int PSKDemod(const char *Cmd, bool verbose)
e770c648 1759{
e0165dcf 1760 int invert=0;
1761 int clk=0;
1762 int maxErr=100;
1763 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1764 if (clk==1){
1765 invert=1;
1766 clk=0;
1767 }
1768 if (invert != 0 && invert != 1) {
24344f28 1769 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1770 return 0;
1771 }
1772 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1773 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1774 if (BitLen==0) return 0;
2eec55c8 1775 uint8_t carrier=countFC(BitStream, BitLen, 0);
e0165dcf 1776 if (carrier!=2 && carrier!=4 && carrier!=8){
1777 //invalid carrier
1778 return 0;
1779 }
6426f6ba 1780 if (g_debugMode){
1781 PrintAndLog("Carrier: rf/%d",carrier);
1782 }
e0165dcf 1783 int errCnt=0;
1784 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1785 if (errCnt > maxErr){
2767fc02 1786 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1787 return 0;
1788 }
1789 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
2767fc02 1790 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1791 return 0;
1792 }
2767fc02 1793 if (verbose || g_debugMode){
1794 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1795 if (errCnt>0){
2767fc02 1796 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1797 }
1798 }
1799 //prime demod buffer for output
1800 setDemodBuf(BitStream,BitLen,0);
1801 return 1;
4118b74d 1802}
e770c648 1803
4118b74d 1804// Indala 26 bit decode
1805// by marshmellow
1806// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1807int CmdIndalaDecode(const char *Cmd)
1808{
b4fb11ba 1809 int ans;
1810 if (strlen(Cmd)>0){
1811 ans = PSKDemod(Cmd, 0);
1812 } else{ //default to RF/32
1813 ans = PSKDemod("32", 0);
1814 }
4118b74d 1815
7a8a982b 1816 if (!ans){
bb73c58d 1817 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
ba1a299c 1818 return 0;
1819 }
56d0fb8e 1820
1821 uint8_t invert = 0;
57c7b44b 1822 size_t size = DemodBufferLen;
eb891c38 1823 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1824 if (startIdx < 0 || size > 224) {
bb73c58d 1825 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
ba1a299c 1826 return -1;
1827 }
eb891c38 1828 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
84871873 1829 if (invert)
bb73c58d 1830 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
ec75f5c1 1831
ba1a299c 1832 //convert UID to HEX
1833 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
eb911aa8 1834 uid1 = bytebits_to_byte(DemodBuffer,32);
1835 uid2 = bytebits_to_byte(DemodBuffer+32,32);
ba1a299c 1836 if (DemodBufferLen==64){
87c10b2a 1837 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1838 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1839 );
6426f6ba 1840 } else {
eb911aa8 1841 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1842 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1843 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1844 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1845 uid7 = bytebits_to_byte(DemodBuffer+192,32);
87c10b2a 1846 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1847 DemodBufferLen,
1848 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1849 );
ba1a299c 1850 }
b4fb11ba 1851 if (g_debugMode){
eb911aa8 1852 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
b4fb11ba 1853 printDemodBuff();
1854 }
ba1a299c 1855 return 1;
4118b74d 1856}
1857
411105e0 1858int CmdPSKNexWatch(const char *Cmd)
1859{
1860 if (!PSKDemod("", false)) return 0;
56d0fb8e 1861
411105e0 1862 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};
1863 size_t startIdx = 0, size = DemodBufferLen;
56d0fb8e 1864
1865 // sanity check.
1866 if ( size < sizeof(preamble) + 100) return 0;
1867
411105e0 1868 bool invert = false;
1869 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1870 // if didn't find preamble try again inverting
1871 if (!PSKDemod("1", false)) return 0;
56d0fb8e 1872
411105e0 1873 size = DemodBufferLen;
1874 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1875 invert = true;
1876 }
1877 if (size != 128) return 0;
1878 setDemodBuf(DemodBuffer, size, startIdx+4);
1879 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1880 //get ID
1881 uint32_t ID = 0;
1882 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1883 for (uint8_t idx=0; idx<8; idx++){
1884 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1885 }
1886 }
1887 //parity check (TBD)
1888
1889 //checksum check (TBD)
1890
1891 //output
1892 PrintAndLog("NexWatch ID: %d", ID);
1893 if (invert){
bb73c58d 1894 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
411105e0 1895 for (uint8_t idx=0; idx<size; idx++)
1896 DemodBuffer[idx] ^= 1;
1897 }
1898
1899 CmdPrintDemodBuff("x");
1900 return 1;
1901}
1902
3acac886 1903int CmdPSKIdteck(const char *Cmd) {
1904
1905 if (!PSKDemod("", false)) {
1906 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1907 return 0;
1908 }
1909 size_t size = DemodBufferLen;
1910
1911 //get binary from PSK1 wave
1912 int idx = IdteckDemodPSK(DemodBuffer, &size);
1913 if (idx < 0){
1914 if (g_debugMode){
1915 if (idx == -1)
1916 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1917 else if (idx == -2)
1918 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1919 else if (idx == -3)
1920 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1921 else
1922 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1923 }
1924
1925 // if didn't find preamble try again inverting
1926 if (!PSKDemod("1", false)) {
1927 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1928 return 0;
1929 }
1930 idx = IdteckDemodPSK(DemodBuffer, &size);
1931 if (idx < 0){
1932 if (g_debugMode){
1933 if (idx == -1)
1934 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1935 else if (idx == -2)
1936 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1937 else if (idx == -3)
1938 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1939 else
1940 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1941 }
1942 return 0;
1943 }
1944 }
1945 setDemodBuf(DemodBuffer, 64, idx);
1946
1947 //got a good demod
1948 uint32_t id = 0;
1949 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1950 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1951
1952 //parity check (TBD)
1953 //checksum check (TBD)
1954
1955 //output
1956 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1957 return 1;
1958}
1959
04d2721b 1960// by marshmellow
e770c648 1961// takes 3 arguments - clock, invert, maxErr as integers
1962// attempts to demodulate nrz only
1963// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1964int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1965{
e0165dcf 1966 int invert=0;
1967 int clk=0;
1968 int maxErr=100;
1969 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1970 if (clk==1){
1971 invert=1;
1972 clk=0;
1973 }
1974 if (invert != 0 && invert != 1) {
1975 PrintAndLog("Invalid argument: %s", Cmd);
1976 return 0;
1977 }
1978 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1979 size_t BitLen = getFromGraphBuf(BitStream);
1980 if (BitLen==0) return 0;
1981 int errCnt=0;
6426f6ba 1982 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
e0165dcf 1983 if (errCnt > maxErr){
1984 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1985 return 0;
1986 }
2eec55c8 1987 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1988 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1989 return 0;
1990 }
1991 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1992 //prime demod buffer for output
1993 setDemodBuf(BitStream,BitLen,0);
1994
2767fc02 1995 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1996 if (verbose || g_debugMode) {
1997 PrintAndLog("NRZ demoded bitstream:");
1998 // Now output the bitstream to the scrollback by line of 16 bits
1999 printDemodBuff();
2000 }
2001 return 1;
b4a2fcf6 2002}
2003
2004int CmdNRZrawDemod(const char *Cmd)
2005{
e0165dcf 2006 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2007 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
a0c7eea7 2008
e0165dcf 2009 return NRZrawDemod(Cmd, TRUE);
e770c648 2010}
2011
2012// by marshmellow
2013// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 2014// attempts to demodulate psk only
2015// prints binary found and saves in demodbuffer for further commands
e770c648 2016int CmdPSK1rawDemod(const char *Cmd)
4118b74d 2017{
e0165dcf 2018 int ans;
2019 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2020 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
a0c7eea7 2021
e0165dcf 2022 ans = PSKDemod(Cmd, TRUE);
2023 //output
2024 if (!ans){
2025 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2026 return 0;
2027 }
2767fc02 2028 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 2029 // Now output the bitstream to the scrollback by line of 16 bits
2030 printDemodBuff();
2031 return 1;
4118b74d 2032}
2033
04d2721b 2034// by marshmellow
19ff0210 2035// takes same args as cmdpsk1rawdemod
04d2721b 2036int CmdPSK2rawDemod(const char *Cmd)
2037{
56d0fb8e 2038 int ans = 0;
e0165dcf 2039 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2040 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
a0c7eea7 2041
56d0fb8e 2042 ans = PSKDemod(Cmd, TRUE);
e0165dcf 2043 if (!ans){
2044 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2045 return 0;
2046 }
2047 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2048 PrintAndLog("PSK2 demoded bitstream:");
2049 // Now output the bitstream to the scrollback by line of 16 bits
2050 printDemodBuff();
2051 return 1;
04d2721b 2052}
2053
19ff0210 2054// by marshmellow - combines all raw demod functions into one menu command
2055int CmdRawDemod(const char *Cmd)
2056{
2057 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
19ff0210 2058 char cmdp2 = Cmd[1];
2059 int ans = 0;
a0c7eea7 2060
a38f5a07 2061 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
a0c7eea7 2062 return usage_data_rawdemod();
2063
2064 if (cmdp == 'f' && cmdp2 == 's')
f8f894a5 2065 ans = CmdFSKrawdemod(Cmd+2);
a0c7eea7 2066 else if(cmdp == 'a' && cmdp2 == 'b')
f8f894a5 2067 ans = Cmdaskbiphdemod(Cmd+2);
a0c7eea7 2068 else if(cmdp == 'a' && cmdp2 == 'm')
f8f894a5 2069 ans = Cmdaskmandemod(Cmd+2);
a0c7eea7 2070 else if(cmdp == 'a' && cmdp2 == 'r')
f8f894a5 2071 ans = Cmdaskrawdemod(Cmd+2);
a0c7eea7 2072 else if(cmdp == 'n' && cmdp2 == 'r')
f8f894a5 2073 ans = CmdNRZrawDemod(Cmd+2);
a0c7eea7 2074 else if(cmdp == 'p' && cmdp2 == '1')
f8f894a5 2075 ans = CmdPSK1rawDemod(Cmd+2);
a0c7eea7 2076 else if(cmdp == 'p' && cmdp2 == '2')
f8f894a5 2077 ans = CmdPSK2rawDemod(Cmd+2);
a0c7eea7 2078 else
19ff0210 2079 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
a0c7eea7 2080
19ff0210 2081 return ans;
2082}
a0c7eea7 2083//iceman: diff sizes on the plotwindow?
7fe9b0b7 2084int CmdGrid(const char *Cmd)
2085{
e0165dcf 2086 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
a0c7eea7 2087 PlotGridXdefault = PlotGridX;
2088 PlotGridYdefault = PlotGridY;
e0165dcf 2089 RepaintGraphWindow();
2090 return 0;
7fe9b0b7 2091}
2092
2093int CmdHexsamples(const char *Cmd)
2094{
e0165dcf 2095 int i, j;
2096 int requested = 0;
2097 int offset = 0;
2098 char string_buf[25];
2099 char* string_ptr = string_buf;
2100 uint8_t got[BIGBUF_SIZE];
2101
2102 sscanf(Cmd, "%i %i", &requested, &offset);
2103
2104 /* if no args send something */
2105 if (requested == 0) {
2106 requested = 8;
2107 }
2108 if (offset + requested > sizeof(got)) {
2109 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2110 return 0;
2111 }
2112
2113 GetFromBigBuf(got,requested,offset);
2114 WaitForResponse(CMD_ACK,NULL);
2115
2116 i = 0;
2117 for (j = 0; j < requested; j++) {
2118 i++;
2119 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2120 if (i == 8) {
2121 *(string_ptr - 1) = '\0'; // remove the trailing space
2122 PrintAndLog("%s", string_buf);
2123 string_buf[0] = '\0';
2124 string_ptr = string_buf;
2125 i = 0;
2126 }
2127 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2128 *(string_ptr - 1) = '\0';
2129 PrintAndLog("%s", string_buf);
2130 string_buf[0] = '\0';
2131 }
2132 }
2133 return 0;
7fe9b0b7 2134}
2135
7fe9b0b7 2136int CmdHide(const char *Cmd)
2137{
e0165dcf 2138 HideGraphWindow();
2139 return 0;
7fe9b0b7 2140}
2141
78f5b1a7 2142//zero mean GraphBuffer
7fe9b0b7 2143int CmdHpf(const char *Cmd)
2144{
e0165dcf 2145 int i;
2146 int accum = 0;
7fe9b0b7 2147
e0165dcf 2148 for (i = 10; i < GraphTraceLen; ++i)
2149 accum += GraphBuffer[i];
a0c7eea7 2150
e0165dcf 2151 accum /= (GraphTraceLen - 10);
a0c7eea7 2152
e0165dcf 2153 for (i = 0; i < GraphTraceLen; ++i)
2154 GraphBuffer[i] -= accum;
7fe9b0b7 2155
e0165dcf 2156 RepaintGraphWindow();
2157 return 0;
7fe9b0b7 2158}
f6d9fb17
MHS		 2159
2160bool _headBit( BitstreamOut *stream)
2161{
2162 int bytepos = stream->position >> 3; // divide by 8
2163 int bitpos = (stream->position++) & 7; // mask out 00000111
2164 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2165}
2166
2167uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2168{
2169 int i;
2170 uint8_t val = 0;
a0c7eea7 2171 for(i = 0 ; i < bits_per_sample; i++)
f6d9fb17 2172 val |= (_headBit(b) << (7-i));
a0c7eea7 2173
f6d9fb17
MHS		 2174 return val;
2175}
7fe9b0b7 2176
1fbf8956 2177int getSamples(const char *Cmd, bool silent)
7fe9b0b7 2178{
e0165dcf 2179 //If we get all but the last byte in bigbuf,
2180 // we don't have to worry about remaining trash
2181 // in the last byte in case the bits-per-sample
2182 // does not line up on byte boundaries
2183
2184 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2185
2186 int n = strtol(Cmd, NULL, 0);
2187
52f2df61 2188 if ( n == 0 || n > sizeof(got))
e0165dcf 2189 n = sizeof(got);
2190
eb911aa8 2191 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
e0165dcf 2192 GetFromBigBuf(got,n,0);
eb911aa8 2193 if (!silent) PrintAndLog("Data fetched");
e0165dcf 2194 UsbCommand response;
c188b1b9 2195 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2196 PrintAndLog("timeout while waiting for reply.");
2197 return 1;
2198 }
2199
e0165dcf 2200 uint8_t bits_per_sample = 8;
2201
2202 //Old devices without this feature would send 0 at arg[0]
a0c7eea7 2203 if (response.arg[0] > 0) {
e0165dcf 2204 sample_config *sc = (sample_config *) response.d.asBytes;
eb911aa8 2205 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
e0165dcf 2206 bits_per_sample = sc->bits_per_sample;
2207 }
a0c7eea7 2208
2209 if (bits_per_sample < 8) {
eb911aa8 2210 if (!silent) PrintAndLog("Unpacking...");
e0165dcf 2211 BitstreamOut bout = { got, bits_per_sample * n, 0};
2212 int j =0;
e6432f05 2213 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2214 uint8_t sample = getByte(bits_per_sample, &bout);
2215 GraphBuffer[j] = ((int) sample )- 128;
2216 }
2217 GraphTraceLen = j;
eb911aa8 2218 if (!silent) PrintAndLog("Unpacked %d samples" , j );
a0c7eea7 2219 } else {
e0165dcf 2220 for (int j = 0; j < n; j++) {
2221 GraphBuffer[j] = ((int)got[j]) - 128;
2222 }
2223 GraphTraceLen = n;
2224 }
2225
2226 RepaintGraphWindow();
2227 return 0;
1fbf8956 2228}
2229
2230int CmdSamples(const char *Cmd)
2231{
e0165dcf 2232 return getSamples(Cmd, false);
7fe9b0b7 2233}
2234
d6a120a2
MHS		 2235int CmdTuneSamples(const char *Cmd)
2236{
3aa4014b 2237 int timeout = 0;
2238 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2239
c188b1b9 2240 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2241 clearCommandBuffer();
3aa4014b 2242 SendCommand(&c);
3aa4014b 2243 UsbCommand resp;
a0048c69 2244 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
3aa4014b 2245 timeout++;
2246 printf(".");
81b7e894 2247 fflush(stdout);
3aa4014b 2248 if (timeout > 7) {
2249 PrintAndLog("\nNo response from Proxmark. Aborting...");
2250 return 1;
2251 }
2252 }
2253
bb522918 2254#define NON_VOLTAGE 999
2255#define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2256#define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2257#define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2258#define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2259
3aa4014b 2260 int peakv, peakf;
2261 int vLf125, vLf134, vHf;
2262 vLf125 = resp.arg[0] & 0xffff;
2263 vLf134 = resp.arg[0] >> 16;
2264 vHf = resp.arg[1] & 0xffff;;
2265 peakf = resp.arg[2] & 0xffff;
2266 peakv = resp.arg[2] >> 16;
2267 PrintAndLog("");
bb522918 2268 if ( vLf125 > NON_VOLTAGE )
d801514d 2269 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
bb522918 2270 if ( vLf134 > NON_VOLTAGE )
d801514d 2271 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
efbf81da 2272 if ( peakv > NON_VOLTAGE && peakf > 0 )
d801514d 2273 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
bb522918 2274 if ( vHf > NON_VOLTAGE )
d801514d 2275 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2276
bb522918 2277
0d0d0499 2278
2279 if (peakv < LF_UNUSABLE_V)
3aa4014b 2280 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2281 else if (peakv < LF_MARGINAL_V)
3aa4014b 2282 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2283 if (vHf < HF_UNUSABLE_V)
3aa4014b 2284 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2285 else if (vHf < HF_MARGINAL_V)
3aa4014b 2286 PrintAndLog("# Your HF antenna is marginal.");
2287
0d0d0499 2288 if (peakv >= LF_UNUSABLE_V) {
2289 for (int i = 0; i < 256; i++) {
2290 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2291 }
2292 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2293 PrintAndLog("\n");
2294 GraphTraceLen = 256;
2295 ShowGraphWindow();
abd16c45 2296 RepaintGraphWindow();
ba1a299c 2297 }
b4fb11ba 2298 return 0;
d6a120a2
MHS		 2299}
2300
7fe9b0b7 2301int CmdLoad(const char *Cmd)
2302{
e0165dcf 2303 char filename[FILE_PATH_SIZE] = {0x00};
2304 int len = 0;
b915fda3 2305
e0165dcf 2306 len = strlen(Cmd);
2307 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2308 memcpy(filename, Cmd, len);
b915fda3 2309
e0165dcf 2310 FILE *f = fopen(filename, "r");
2311 if (!f) {
c188b1b9 2312 PrintAndLog("couldn't open '%s'", filename);
e0165dcf 2313 return 0;
2314 }
2315
2316 GraphTraceLen = 0;
2317 char line[80];
2318 while (fgets(line, sizeof (line), f)) {
2319 GraphBuffer[GraphTraceLen] = atoi(line);
2320 GraphTraceLen++;
2321 }
a38f5a07 2322 if (f)
2dcf60f3 2323 fclose(f);
a38f5a07 2324
e0165dcf 2325 PrintAndLog("loaded %d samples", GraphTraceLen);
2326 RepaintGraphWindow();
2327 return 0;
7fe9b0b7 2328}
2329
2330int CmdLtrim(const char *Cmd)
2331{
e0165dcf 2332 int ds = atoi(Cmd);
c188b1b9 2333
2334 if (GraphTraceLen <= 0) return 0;
2335
e0165dcf 2336 for (int i = ds; i < GraphTraceLen; ++i)
2337 GraphBuffer[i-ds] = GraphBuffer[i];
7fe9b0b7 2338
c188b1b9 2339 GraphTraceLen -= ds;
e0165dcf 2340 RepaintGraphWindow();
2341 return 0;
7fe9b0b7 2342}
ec75f5c1 2343
2344// trim graph to input argument length
9ec1416a 2345int CmdRtrim(const char *Cmd)
2346{
e0165dcf 2347 int ds = atoi(Cmd);
e0165dcf 2348 GraphTraceLen = ds;
e0165dcf 2349 RepaintGraphWindow();
2350 return 0;
9ec1416a 2351}
7fe9b0b7 2352
7fe9b0b7 2353int CmdNorm(const char *Cmd)
2354{
e0165dcf 2355 int i;
2356 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2357
e0165dcf 2358 for (i = 10; i < GraphTraceLen; ++i) {
a0c7eea7 2359 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2360 if (GraphBuffer[i] < min) min = GraphBuffer[i];
e0165dcf 2361 }
7fe9b0b7 2362
e0165dcf 2363 if (max != min) {
2364 for (i = 0; i < GraphTraceLen; ++i) {
a0c7eea7 2365 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2366 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2367 }
2368 }
2369 RepaintGraphWindow();
2370 return 0;
7fe9b0b7 2371}
2372
2373int CmdPlot(const char *Cmd)
2374{
e0165dcf 2375 ShowGraphWindow();
2376 return 0;
7fe9b0b7 2377}
2378
2379int CmdSave(const char *Cmd)
2380{
e0165dcf 2381 char filename[FILE_PATH_SIZE] = {0x00};
2382 int len = 0;
b915fda3 2383
e0165dcf 2384 len = strlen(Cmd);
2385 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2386 memcpy(filename, Cmd, len);
2387
e0165dcf 2388 FILE *f = fopen(filename, "w");
2389 if(!f) {
2390 PrintAndLog("couldn't open '%s'", filename);
2391 return 0;
2392 }
c621ae06 2393
2394 for (int i = 0; i < GraphTraceLen; i++)
e0165dcf 2395 fprintf(f, "%d\n", GraphBuffer[i]);
c621ae06 2396
a38f5a07 2397 if (f)
2dcf60f3 2398 fclose(f);
a38f5a07 2399
e0165dcf 2400 PrintAndLog("saved to '%s'", Cmd);
2401 return 0;
7fe9b0b7 2402}
2403
2404int CmdScale(const char *Cmd)
2405{
e0165dcf 2406 CursorScaleFactor = atoi(Cmd);
2407 if (CursorScaleFactor == 0) {
2408 PrintAndLog("bad, can't have zero scale");
2409 CursorScaleFactor = 1;
2410 }
2411 RepaintGraphWindow();
2412 return 0;
7fe9b0b7 2413}
2414
d51b2eda
MHS		 2415int CmdDirectionalThreshold(const char *Cmd)
2416{
e0165dcf 2417 int8_t upThres = param_get8(Cmd, 0);
2418 int8_t downThres = param_get8(Cmd, 1);
2419
2420 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2421
2422 int lastValue = GraphBuffer[0];
2423 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2424
2425 for (int i = 1; i < GraphTraceLen; ++i) {
2426 // Apply first threshold to samples heading up
2427 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2428 {
2429 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2430 GraphBuffer[i] = 1;
2431 }
2432 // Apply second threshold to samples heading down
2433 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2434 {
2435 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2436 GraphBuffer[i] = -1;
2437 }
2438 else
2439 {
2440 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2441 GraphBuffer[i] = GraphBuffer[i-1];
e0165dcf 2442 }
2443 }
2444 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2445 RepaintGraphWindow();
2446 return 0;
d51b2eda
MHS		 2447}
2448
7fe9b0b7 2449int CmdZerocrossings(const char *Cmd)
2450{
e0165dcf 2451 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2452 CmdHpf("");
2453
2454 int sign = 1;
2455 int zc = 0;
2456 int lastZc = 0;
2457
2458 for (int i = 0; i < GraphTraceLen; ++i) {
2459 if (GraphBuffer[i] * sign >= 0) {
2460 // No change in sign, reproduce the previous sample count.
2461 zc++;
2462 GraphBuffer[i] = lastZc;
2463 } else {
2464 // Change in sign, reset the sample count.
2465 sign = -sign;
2466 GraphBuffer[i] = lastZc;
2467 if (sign > 0) {
2468 lastZc = zc;
2469 zc = 0;
2470 }
2471 }
2472 }
2473
2474 RepaintGraphWindow();
2475 return 0;
7fe9b0b7 2476}
2477
0de8e387 2478/**
2479 * @brief Utility for conversion via cmdline.
2480 * @param Cmd
2481 * @return
2482 */
2483int Cmdbin2hex(const char *Cmd)
2484{
2485 int bg =0, en =0;
2486 if(param_getptr(Cmd, &bg, &en, 0))
0de8e387 2487 return usage_data_bin2hex();
a0c7eea7 2488
0de8e387 2489 //Number of digits supplied as argument
2490 size_t length = en - bg +1;
2491 size_t bytelen = (length+7) / 8;
2492 uint8_t* arr = (uint8_t *) malloc(bytelen);
2493 memset(arr, 0, bytelen);
2494 BitstreamOut bout = { arr, 0, 0 };
2495
a0c7eea7 2496 for (; bg <= en ;bg++) {
0de8e387 2497 char c = Cmd[bg];
2498 if( c == '1') pushBit(&bout, 1);
2499 else if( c == '0') pushBit(&bout, 0);
2500 else PrintAndLog("Ignoring '%c'", c);
2501 }
2502
a0c7eea7 2503 if (bout.numbits % 8 != 0)
0de8e387 2504 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
0de8e387 2505
2506 //Uses printf instead of PrintAndLog since the latter
2507 // adds linebreaks to each printout - this way was more convenient since we don't have to
2508 // allocate a string and write to that first...
2509 for(size_t x = 0; x < bytelen ; x++)
0de8e387 2510 printf("%02X", arr[x]);
a0c7eea7 2511
0de8e387 2512 printf("\n");
2513 free(arr);
2514 return 0;
2515}
2516
0de8e387 2517int Cmdhex2bin(const char *Cmd)
2518{
2519 int bg =0, en =0;
f4d0ffd1 2520 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
0de8e387 2521
a0c7eea7 2522 while (bg <= en ) {
0de8e387 2523 char x = Cmd[bg++];
2524 // capitalize
2525 if (x >= 'a' && x <= 'f')
2526 x -= 32;
2527 // convert to numeric value
2528 if (x >= '0' && x <= '9')
2529 x -= '0';
2530 else if (x >= 'A' && x <= 'F')
2531 x -= 'A' - 10;
2532 else
2533 continue;
2534
2535 //Uses printf instead of PrintAndLog since the latter
2536 // adds linebreaks to each printout - this way was more convenient since we don't have to
2537 // allocate a string and write to that first...
2538
2539 for(int i= 0 ; i < 4 ; ++i)
2540 printf("%d",(x >> (3 - i)) & 1);
2541 }
2542 printf("\n");
2543
2544 return 0;
2545}
2546
40f6f2ff 2547int CmdDataIIR(const char *Cmd){
4c543dbd 2548 uint8_t k = param_get8(Cmd,0);
2549 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2550 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
40f6f2ff 2551 RepaintGraphWindow();
2552 return 0;
2553}
2554
ba1a299c 2555static command_t CommandTable[] =
7fe9b0b7 2556{
e0165dcf 2557 {"help", CmdHelp, 1, "This help"},
a152dea7 2558 {"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 2559 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2560 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
70459879 2561 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
e0165dcf 2562 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2563 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
a152dea7 2564 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
e0165dcf 2565 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
c621ae06 2566 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
e0165dcf 2567 {"dec", CmdDec, 1, "Decimate samples"},
a152dea7 2568 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
ad6219fc 2569 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2570 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2571 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2572 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2573 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2574 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2575 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2576 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2577 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2578 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
a152dea7 2579 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2580 {"hide", CmdHide, 1, "Hide graph window"},
2581 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2582 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2583 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2584 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
fef74fdc 2585 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2586 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2587 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
bf32dd92 2588 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2589 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2590 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2591 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2592 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2593 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2594 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
a126332a 2595 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
e0165dcf 2596 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2597 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2598 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2599 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2600 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
40f6f2ff 2601 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
e0165dcf 2602 {NULL, NULL, 0, NULL}
7fe9b0b7 2603};
2604
4c36581b 2605int CmdData(const char *Cmd){
2606 clearCommandBuffer();
e0165dcf 2607 CmdsParse(CommandTable, Cmd);
2608 return 0;
7fe9b0b7 2609}
2610
2611int CmdHelp(const char *Cmd)
2612{
e0165dcf 2613 CmdsHelp(CommandTable);
2614 return 0;
7fe9b0b7 2615}
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