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CHG: rename a local scope variable "data"->"cmd"
[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
545 if (amp == 'a' || amp == 'A') {
546 askAmp(BitStream, BitLen);
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 }
a38f5a07 555 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, 0, askType);
fef74fdc 556 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 557 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 558 return 0;
559 }
31649387 560 if (errCnt > maxErr){
2767fc02 561 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
562 return 0;
563 }
564 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 565
566 //output
e0165dcf 567 setDemodBuf(BitStream,BitLen,0);
fef74fdc 568 if (verbose || g_debugMode){
c621ae06 569 if (errCnt>0)
570 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
571 if (askType)
572 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
573 else
574 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 575 // Now output the bitstream to the scrollback by line of 16 bits
c621ae06 576 printDemodBuff();
fef74fdc 577 }
578 uint64_t lo = 0;
579 uint32_t hi = 0;
c621ae06 580 if (emSearch)
fef74fdc 581 AskEm410xDecode(true, &hi, &lo);
c621ae06 582
e0165dcf 583 return 1;
eb191de6 584}
05164399 585int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
586 bool st = false;
587 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
588}
eb191de6 589
4ac906d1 590//by marshmellow
fef74fdc 591//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 592//attempts to demodulate ask while decoding manchester
593//prints binary found and saves in graphbuffer for further commands
594int Cmdaskmandemod(const char *Cmd)
595{
e0165dcf 596 char cmdp = param_getchar(Cmd, 0);
a38f5a07 597 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
a0c7eea7 598
05164399 599 bool st = TRUE;
600 if (Cmd[0]=='s')
601 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
602 else if (Cmd[1] == 's')
603 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
c621ae06 604
fef74fdc 605 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 606}
607
eb191de6 608//by marshmellow
d5a72d2f 609//manchester decode
eb191de6 610//stricktly take 10 and 01 and convert to 0 and 1
611int Cmdmandecoderaw(const char *Cmd)
612{
c621ae06 613 int i = 0;
614 int errCnt = 0;
615 size_t size = 0;
616 int invert = 0;
0ad1a1d4 617 int maxErr = 20;
e0165dcf 618 char cmdp = param_getchar(Cmd, 0);
c621ae06 619 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
a0c7eea7 620
e0165dcf 621 if (DemodBufferLen==0) return 0;
c621ae06 622
623 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
624 int high = 0, low = 0;
625 for (; i < DemodBufferLen; ++i){
626 if (DemodBuffer[i] > high)
627 high=DemodBuffer[i];
628 else if(DemodBuffer[i] < low)
629 low=DemodBuffer[i];
630 BitStream[i] = DemodBuffer[i];
e0165dcf 631 }
1f918317 632 if (high>7 || low <0 ){
2767fc02 633 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 634 return 0;
635 }
1f918317 636
fef74fdc 637 sscanf(Cmd, "%i %i", &invert, &maxErr);
31649387 638 size = i;
639 errCnt = manrawdecode(BitStream, &size, invert);
c621ae06 640 if (errCnt >= maxErr){
e0165dcf 641 PrintAndLog("Too many errors: %d",errCnt);
642 return 0;
643 }
644 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 645 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
c621ae06 646 if (errCnt == 0){
e0165dcf 647 uint64_t id = 0;
648 uint32_t hi = 0;
649 size_t idx=0;
650 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
651 //need to adjust to set bitstream back to manchester encoded data
652 //setDemodBuf(BitStream, size, idx);
e0165dcf 653 printEM410x(hi, id);
654 }
655 }
656 return 1;
d5a72d2f 657}
658
659//by marshmellow
660//biphase decode
661//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 662//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
663// and "invert" default = 0 if 1 it will invert output
2767fc02 664// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 665int CmdBiphaseDecodeRaw(const char *Cmd)
666{
ba1a299c 667 size_t size=0;
b41534d1 668 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 669 char cmdp = param_getchar(Cmd, 0);
c621ae06 670 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
a0c7eea7 671
b41534d1 672 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
673 if (DemodBufferLen==0){
674 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 675 return 0;
676 }
b41534d1 677 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
678 memcpy(BitStream, DemodBuffer, DemodBufferLen);
679 size = DemodBufferLen;
1e090a61 680 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
c621ae06 681 if (errCnt < 0){
b41534d1 682 PrintAndLog("Error during decode:%d", errCnt);
683 return 0;
684 }
c621ae06 685 if (errCnt > maxErr){
b4fb11ba 686 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
687 return 0;
688 }
b41534d1 689
c621ae06 690 if (errCnt > 0)
2767fc02 691 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
c621ae06 692
b41534d1 693 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 694 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 695
c621ae06 696 if (offset)
697 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 698 return 1;
eb191de6 699}
700
b41534d1 701//by marshmellow
702// - ASK Demod then Biphase decode GraphBuffer samples
703int ASKbiphaseDemod(const char *Cmd, bool verbose)
704{
705 //ask raw demod GraphBuffer first
b4c1f167 706 int offset=0, clk=0, invert=0, maxErr=0;
707 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
1299c798 708
b41534d1 709 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
6c283951 710 size_t size = getFromGraphBuf(BitStream);
711 if (size == 0 ) {
712 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
713 return 0;
714 }
b10a759f 715 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
b4c1f167 716 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1299c798 717 if ( errCnt < 0 || errCnt > maxErr ) {
718 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
719 return 0;
720 }
721
722 //attempt to Biphase decode BitStream
723 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 724 if (errCnt < 0){
bb73c58d 725 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
b41534d1 726 return 0;
727 }
728 if (errCnt > maxErr) {
bb73c58d 729 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
b41534d1 730 return 0;
731 }
732 //success set DemodBuffer and return
733 setDemodBuf(BitStream, size, 0);
734 if (g_debugMode || verbose){
1299c798 735 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 736 printDemodBuff();
737 }
738 return 1;
739}
740//by marshmellow - see ASKbiphaseDemod
741int Cmdaskbiphdemod(const char *Cmd)
742{
e0165dcf 743 char cmdp = param_getchar(Cmd, 0);
c621ae06 744 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
a0c7eea7 745
e0165dcf 746 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 747}
748
8d960002 749//by marshmellow
750//attempts to demodulate and identify a G_Prox_II verex/chubb card
751//WARNING: if it fails during some points it will destroy the DemodBuffer data
752// but will leave the GraphBuffer intact.
753//if successful it will push askraw data back to demod buffer ready for emulation
754int CmdG_Prox_II_Demod(const char *Cmd)
755{
e0165dcf 756 if (!ASKbiphaseDemod(Cmd, FALSE)){
bb73c58d 757 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
e0165dcf 758 return 0;
759 }
760 size_t size = DemodBufferLen;
761 //call lfdemod.c demod for gProxII
762 int ans = gProxII_Demod(DemodBuffer, &size);
763 if (ans < 0){
bb73c58d 764 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
e0165dcf 765 return 0;
766 }
c728b2b4 767 //got a good demod of 96 bits
768 uint8_t ByteStream[8] = {0x00};
c621ae06 769 uint8_t xorKey = 0;
c728b2b4 770 size_t startIdx = ans + 6; //start after 6 bit preamble
771
772 uint8_t bits_no_spacer[90];
773 //so as to not mess with raw DemodBuffer copy to a new sample array
774 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
775 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
776 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
777 if (bitLen != 72) {
c621ae06 778 if (g_debugMode)
779 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
780 return 0;
781 }
c728b2b4 782 // get key and then get all 8 bytes of payload decoded
783 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
784 for (size_t idx = 0; idx < 8; idx++) {
785 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
bb73c58d 786 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
e0165dcf 787 }
31649387 788
789 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
e0165dcf 790 uint8_t fmtLen = ByteStream[0]>>2;
791 uint32_t FC = 0;
792 uint32_t Card = 0;
c728b2b4 793 //get raw 96 bits to print
e0165dcf 794 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
795 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
796 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
31649387 797 bool unknown = FALSE;
798 switch(fmtLen) {
799 case 36:
800 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
801 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
802 break;
803 case 26:
804 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
805 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
806 break;
807 default :
808 unknown = TRUE;
809 break;
e0165dcf 810 }
31649387 811 if ( !unknown)
812 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
813 else
814 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
815
e0165dcf 816 setDemodBuf(DemodBuffer+ans, 96, 0);
817 return 1;
8d960002 818}
819
a126332a 820//by marshmellow
821//see ASKDemod for what args are accepted
822int CmdVikingDemod(const char *Cmd)
823{
824 if (!ASKDemod(Cmd, false, false, 1)) {
bb73c58d 825 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
a126332a 826 return 0;
827 }
828 size_t size = DemodBufferLen;
829 //call lfdemod.c demod for Viking
830 int ans = VikingDemod_AM(DemodBuffer, &size);
831 if (ans < 0) {
bb73c58d 832 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
a126332a 833 return 0;
834 }
835 //got a good demod
836 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
837 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
838 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
839 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
840 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
841 PrintAndLog("Raw: %08X%08X", raw1,raw2);
842 setDemodBuf(DemodBuffer+ans, 64, 0);
843 return 1;
844}
845
fef74fdc 846//by marshmellow - see ASKDemod
4ac906d1 847int Cmdaskrawdemod(const char *Cmd)
848{
e0165dcf 849 char cmdp = param_getchar(Cmd, 0);
c621ae06 850 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
a0c7eea7 851
fef74fdc 852 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 853}
854
73d04bb4 855int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 856{
e0165dcf 857 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
858 size_t Correlation = 0;
859 int maxSum = 0;
860 int lastMax = 0;
861 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
862 for (int i = 0; i < GraphTraceLen - window; ++i) {
863 int sum = 0;
864 for (int j = 0; j < window; ++j) {
865 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
866 }
867 CorrelBuffer[i] = sum;
868 if (sum >= maxSum-100 && sum <= maxSum+100){
869 //another max
870 Correlation = i-lastMax;
871 lastMax = i;
872 if (sum > maxSum) maxSum = sum;
873 } else if (sum > maxSum){
874 maxSum=sum;
875 lastMax = i;
876 }
877 }
878 if (Correlation==0){
879 //try again with wider margin
880 for (int i = 0; i < GraphTraceLen - window; i++){
881 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
882 //another max
883 Correlation = i-lastMax;
884 lastMax = i;
885 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
886 }
887 }
888 }
889 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
890
891 if (SaveGrph){
892 GraphTraceLen = GraphTraceLen - window;
893 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
894 RepaintGraphWindow();
895 }
896 return Correlation;
73d04bb4 897}
7fe9b0b7 898
73d04bb4 899int CmdAutoCorr(const char *Cmd)
900{
e0165dcf 901 char cmdp = param_getchar(Cmd, 0);
e3f9c50d 902 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
e0165dcf 903 int window = 4000; //set default
c621ae06 904 char grph = 0;
e0165dcf 905 bool updateGrph = FALSE;
906 sscanf(Cmd, "%i %c", &window, &grph);
907
908 if (window >= GraphTraceLen) {
c621ae06 909 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
e0165dcf 910 return 0;
911 }
c621ae06 912 if (grph == 'g') updateGrph = TRUE;
e0165dcf 913 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 914}
915
916int CmdBitsamples(const char *Cmd)
917{
e0165dcf 918 int cnt = 0;
919 uint8_t got[12288];
952a8bb5 920
a0c7eea7 921 GetFromBigBuf(got, sizeof(got), 0);
922 WaitForResponse(CMD_ACK, NULL);
7fe9b0b7 923
a0c7eea7 924 for (int j = 0; j < sizeof(got); j++) {
925 for (int k = 0; k < 8; k++) {
c621ae06 926 if(got[j] & (1 << (7 - k)))
a0c7eea7 927 GraphBuffer[cnt++] = 1;
c621ae06 928 else
a0c7eea7 929 GraphBuffer[cnt++] = 0;
a0c7eea7 930 }
e0165dcf 931 }
932 GraphTraceLen = cnt;
933 RepaintGraphWindow();
934 return 0;
7fe9b0b7 935}
936
7fe9b0b7 937int CmdBuffClear(const char *Cmd)
938{
c621ae06 939 char cmdp = param_getchar(Cmd, 0);
940 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
941
a0c7eea7 942 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
e0165dcf 943 SendCommand(&c);
944 ClearGraph(true);
945 return 0;
7fe9b0b7 946}
947
948int CmdDec(const char *Cmd)
949{
a0c7eea7 950 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
e0165dcf 951 GraphBuffer[i] = GraphBuffer[i * 2];
a0c7eea7 952
953 GraphTraceLen >>= 2;
e0165dcf 954 PrintAndLog("decimated by 2");
955 RepaintGraphWindow();
956 return 0;
7fe9b0b7 957}
698b649e
MHS		 958/**
959 * Undecimate - I'd call it 'interpolate', but we'll save that
960 * name until someone does an actual interpolation command, not just
961 * blindly repeating samples
962 * @param Cmd
963 * @return
964 */
965int CmdUndec(const char *Cmd)
966{
a0c7eea7 967 char cmdp = param_getchar(Cmd, 0);
c621ae06 968 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
c856ceae 969
1d42f25f 970 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
a0c7eea7 971
698b649e 972 //We have memory, don't we?
c621ae06 973 int swap[MAX_GRAPH_TRACE_LEN] = {0};
974 uint32_t g_index = 0, s_index = 0;
1d42f25f 975 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
698b649e 976 {
c856ceae 977 int count = 0;
1d42f25f 978 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
c856ceae 979 swap[s_index+count] = GraphBuffer[g_index];
1d42f25f 980 s_index += count;
981 g_index++;
698b649e 982 }
698b649e 983
1d42f25f 984 memcpy(GraphBuffer, swap, s_index * sizeof(int));
c856ceae
MHS		 985 GraphTraceLen = s_index;
986 RepaintGraphWindow();
698b649e
MHS		 987 return 0;
988}
7fe9b0b7 989
ec75f5c1 990//by marshmellow
991//shift graph zero up or down based on input + or -
992int CmdGraphShiftZero(const char *Cmd)
993{
7d0efb37 994 int shift = 0, shiftedVal = 0;
e0165dcf 995 //set options from parameters entered with the command
996 sscanf(Cmd, "%i", &shift);
7d0efb37 997
c621ae06 998 for(int i = 0; i < GraphTraceLen; i++){
999 if ( i+shift >= GraphTraceLen)
1000 shiftedVal = GraphBuffer[i];
1001 else
1002 shiftedVal = GraphBuffer[i] + shift;
1003
7d0efb37 1004 if (shiftedVal > 127)
1005 shiftedVal = 127;
1006 else if (shiftedVal < -127)
1007 shiftedVal = -127;
1008 GraphBuffer[i] = shiftedVal;
e0165dcf 1009 }
1010 CmdNorm("");
1011 return 0;
ec75f5c1 1012}
1013
6de43508 1014//by marshmellow
1015//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 1016//similar to dirtheshold, threshold commands
6de43508 1017//takes a threshold length which is the measured length between two samples then determines an edge
1018int CmdAskEdgeDetect(const char *Cmd)
1019{
e0165dcf 1020 int thresLen = 25;
180ec86e 1021 int last = 0;
e0165dcf 1022 sscanf(Cmd, "%i", &thresLen);
49bbc60a 1023
180ec86e 1024 for(int i = 1; i < GraphTraceLen; ++i){
1025 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1026 last = 127;
1027 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1028 last = -127;
1029
1030 GraphBuffer[i-1] = last;
e0165dcf 1031 }
1032 RepaintGraphWindow();
e0165dcf 1033 return 0;
6de43508 1034}
1035
7fe9b0b7 1036/* Print our clock rate */
ba1a299c 1037// uses data from graphbuffer
f3bf15e4 1038// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 1039int CmdDetectClockRate(const char *Cmd)
1040{
f3bf15e4 1041 char cmdp = param_getchar(Cmd, 0);
a0c7eea7 1042 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1043 return usage_data_detectclock();
1044
1045 int ans = 0;
1046 switch ( cmdp ) {
1047 case 'a' :
1048 case 'A' :
1049 ans = GetAskClock(Cmd+1, true, false);
1050 break;
1051 case 'f' :
1052 case 'F' :
1053 ans = GetFskClock("", true, false);
1054 break;
1055 case 'n' :
1056 case 'N' :
1057 ans = GetNrzClock("", true, false);
1058 break;
1059 case 'p' :
1060 case 'P' :
1061 ans = GetPskClock("", true, false);
1062 break;
1063 default :
1064 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1065 break;
f3bf15e4 1066 }
1067 return ans;
7fe9b0b7 1068}
66707a3b 1069
2767fc02 1070char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1071{
98b2a3a1 1072 static char fType[8];
1073 memset(fType, 0x00, 8);
1074 char *fskType = fType;
2767fc02 1075 if (fchigh==10 && fclow==8){
1076 if (invert) //fsk2a
1fe0992d 1077 memcpy(fskType, "FSK2a", 5);
2767fc02 1078 else //fsk2
1fe0992d 1079 memcpy(fskType, "FSK2", 4);
2767fc02 1080 } else if (fchigh == 8 && fclow == 5) {
1081 if (invert)
1fe0992d 1082 memcpy(fskType, "FSK1", 4);
2767fc02 1083 else
1fe0992d 1084 memcpy(fskType, "FSK1a", 5);
2767fc02 1085 } else {
1fe0992d 1086 memcpy(fskType, "FSK??", 5);
2767fc02 1087 }
1088 return fskType;
1089}
1090
2fc2150e 1091//by marshmellow
eb191de6 1092//fsk raw demod and print binary
6de43508 1093//takes 4 arguments - Clock, invert, fchigh, fclow
1094//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 1095int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 1096{
e0165dcf 1097 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
3f267966 1098 uint8_t rfLen, invert, fchigh, fclow;
e0165dcf 1099
3f267966 1100 //set defaults
e0165dcf 1101 //set options from parameters entered with the command
9332b857 1102 rfLen = param_get8(Cmd, 0);
1103 invert = param_get8(Cmd, 1);
1104 fchigh = param_get8(Cmd, 2);
1105 fclow = param_get8(Cmd, 3);
e0165dcf 1106 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
98b2a3a1 1107 if (rfLen==1) {
2eec55c8 1108 invert = 1; //if invert option only is used
e0165dcf 1109 rfLen = 0;
98b2a3a1 1110 }
e0165dcf 1111 }
1112
1113 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1114 size_t BitLen = getFromGraphBuf(BitStream);
1115 if (BitLen==0) return 0;
1116 //get field clock lengths
98b2a3a1 1117 uint16_t fcs=0;
bf32dd92 1118 if (!fchigh || !fclow) {
98b2a3a1 1119 fcs = countFC(BitStream, BitLen, 1);
1120 if (!fcs) {
1121 fchigh = 10;
1122 fclow = 8;
1123 } else {
1124 fchigh = (fcs >> 8) & 0x00FF;
1125 fclow = fcs & 0x00FF;
e0165dcf 1126 }
1127 }
1128 //get bit clock length
98b2a3a1 1129 if (!rfLen) {
e0165dcf 1130 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
bf32dd92 1131 if (!rfLen) rfLen = 50;
e0165dcf 1132 }
3f267966 1133 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
98b2a3a1 1134 if (size > 0) {
3f267966 1135 setDemodBuf(BitStream, size, 0);
e0165dcf 1136
1137 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 1138 if (verbose || g_debugMode) {
c621ae06 1139 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
3f267966 1140 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
2767fc02 1141 printDemodBuff();
e0165dcf 1142 }
e0165dcf 1143 return 1;
3f267966 1144 } else {
2767fc02 1145 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 1146 }
1147 return 0;
b3b70669 1148}
1149
4ac906d1 1150//by marshmellow
1151//fsk raw demod and print binary
1152//takes 4 arguments - Clock, invert, fchigh, fclow
1153//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1154int CmdFSKrawdemod(const char *Cmd)
1155{
e0165dcf 1156 char cmdp = param_getchar(Cmd, 0);
a38f5a07 1157 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
a0c7eea7 1158
e0165dcf 1159 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1160}
1161
eb191de6 1162//by marshmellow (based on existing demod + holiman's refactor)
1163//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1164//print full HID Prox ID and some bit format details if found
b3b70669 1165int CmdFSKdemodHID(const char *Cmd)
1166{
e0165dcf 1167 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1168 uint32_t hi2=0, hi=0, lo=0;
1169
c621ae06 1170 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
e0165dcf 1171 size_t BitLen = getFromGraphBuf(BitStream);
1172 if (BitLen==0) return 0;
1173 //get binary from fsk wave
1174 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1175 if (idx<0){
1176 if (g_debugMode){
1177 if (idx==-1){
bb73c58d 1178 PrintAndLog("DEBUG: Error - HID just noise detected");
e0165dcf 1179 } else if (idx == -2) {
bb73c58d 1180 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
e0165dcf 1181 } else if (idx == -3) {
bb73c58d 1182 PrintAndLog("DEBUG: Error - HID preamble not found");
e0165dcf 1183 } else if (idx == -4) {
bb73c58d 1184 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
e0165dcf 1185 } else {
bb73c58d 1186 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
e0165dcf 1187 }
1188 }
1189 return 0;
1190 }
1191 if (hi2==0 && hi==0 && lo==0) {
bb73c58d 1192 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
e0165dcf 1193 return 0;
1194 }
1195 if (hi2 != 0){ //extra large HID tags
c621ae06 1196 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
e0165dcf 1197 }
1198 else { //standard HID tags <38 bits
1199 uint8_t fmtLen = 0;
1200 uint32_t fc = 0;
1201 uint32_t cardnum = 0;
1202 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1203 uint32_t lo2=0;
1204 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1205 uint8_t idx3 = 1;
1206 while(lo2>1){ //find last bit set to 1 (format len bit)
1207 lo2=lo2>>1;
1208 idx3++;
1209 }
1210 fmtLen =idx3+19;
1211 fc =0;
1212 cardnum=0;
1213 if(fmtLen==26){
1214 cardnum = (lo>>1)&0xFFFF;
1215 fc = (lo>>17)&0xFF;
1216 }
1217 if(fmtLen==34){
1218 cardnum = (lo>>1)&0xFFFF;
1219 fc= ((hi&1)<<15)|(lo>>17);
1220 }
1221 if(fmtLen==35){
1222 cardnum = (lo>>1)&0xFFFFF;
1223 fc = ((hi&1)<<11)|(lo>>21);
1224 }
1225 }
1226 else { //if bit 38 is not set then 37 bit format is used
1227 fmtLen = 37;
1228 fc = 0;
1229 cardnum = 0;
1230 if(fmtLen == 37){
1231 cardnum = (lo>>1)&0x7FFFF;
1232 fc = ((hi&0xF)<<12)|(lo>>20);
1233 }
1234 }
c621ae06 1235 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
e0165dcf 1236 }
1237 setDemodBuf(BitStream,BitLen,idx);
1238 if (g_debugMode){
bb73c58d 1239 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1240 printDemodBuff();
1241 }
1242 return 1;
ec75f5c1 1243}
1244
04d2721b 1245//by marshmellow
1246//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1247//print full Paradox Prox ID and some bit format details if found
1248int CmdFSKdemodParadox(const char *Cmd)
1249{
e0165dcf 1250 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1251 uint32_t hi2=0, hi=0, lo=0;
1252
1253 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1254 size_t BitLen = getFromGraphBuf(BitStream);
1255 if (BitLen==0) return 0;
1256 //get binary from fsk wave
1257 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1258 if (idx<0){
1259 if (g_debugMode){
1260 if (idx==-1){
bb73c58d 1261 PrintAndLog("DEBUG: Error - Paradox just noise detected");
e0165dcf 1262 } else if (idx == -2) {
bb73c58d 1263 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
e0165dcf 1264 } else if (idx == -3) {
bb73c58d 1265 PrintAndLog("DEBUG: Error - Paradox preamble not found");
e0165dcf 1266 } else if (idx == -4) {
bb73c58d 1267 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
e0165dcf 1268 } else {
bb73c58d 1269 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
e0165dcf 1270 }
1271 }
1272 return 0;
1273 }
1274 if (hi2==0 && hi==0 && lo==0){
bb73c58d 1275 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
e0165dcf 1276 return 0;
1277 }
1278 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1279 uint32_t cardnum = (lo>>10)&0xFFFF;
1280 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1281 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1282 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1283
1284 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1285 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1286 setDemodBuf(BitStream,BitLen,idx);
1287 if (g_debugMode){
bb73c58d 1288 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1289 printDemodBuff();
1290 }
1291 return 1;
b3b70669 1292}
1293
2fc2150e 1294//by marshmellow
eb191de6 1295//IO-Prox demod - FSK RF/64 with preamble of 000000001
1296//print ioprox ID and some format details
b3b70669 1297int CmdFSKdemodIO(const char *Cmd)
1298{
eb911aa8 1299 int retval = 0;
1300 int idx = 0;
1301 char crcStr[20];
1302 memset(crcStr, 0x00, sizeof(crcStr) );
1303
e0165dcf 1304 //something in graphbuffer?
1305 if (GraphTraceLen < 65) {
bb73c58d 1306 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
eb911aa8 1307 return retval;
e0165dcf 1308 }
1309 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
eb911aa8 1310 size_t bitlen = getFromGraphBuf(BitStream);
1311 if (bitlen == 0) return retval;
e0165dcf 1312
1313 //get binary from fsk wave
eb911aa8 1314 idx = IOdemodFSK(BitStream, bitlen);
e0165dcf 1315 if (idx<0){
1316 if (g_debugMode){
1317 if (idx==-1){
bb73c58d 1318 PrintAndLog("DEBUG: Error - IO prox just noise detected");
e0165dcf 1319 } else if (idx == -2) {
bb73c58d 1320 PrintAndLog("DEBUG: Error - IO prox not enough samples");
e0165dcf 1321 } else if (idx == -3) {
bb73c58d 1322 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
e0165dcf 1323 } else if (idx == -4) {
bb73c58d 1324 PrintAndLog("DEBUG: Error - IO prox preamble not found");
e0165dcf 1325 } else if (idx == -5) {
bb73c58d 1326 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
e0165dcf 1327 } else {
bb73c58d 1328 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
e0165dcf 1329 }
1330 }
eb911aa8 1331 return retval;
e0165dcf 1332 }
1333 if (idx==0){
2767fc02 1334 if (g_debugMode){
bb73c58d 1335 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
eb911aa8 1336 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1337 }
eb911aa8 1338 return retval;
e0165dcf 1339 }
1340 //Index map
1341 //0 10 20 30 40 50 60
1342 //| | | | | | |
1343 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1344 //-----------------------------------------------------------------------------
1345 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1346 //
1347 //XSF(version)facility:codeone+codetwo (raw)
1348 //Handle the data
eb911aa8 1349 if (idx + 64 > bitlen) {
bb73c58d 1350 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
eb911aa8 1351 return retval;
e0165dcf 1352 }
eb911aa8 1353
dc3a5846 1354 if (g_debugMode) {
1355 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]);
1356 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]);
1357 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]);
1358 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]);
1359 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]);
1360 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]);
1361 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]);
1362 }
1363
e0165dcf 1364 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1365 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1366 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1367 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1368 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1369 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1370 uint16_t calccrc = 0;
1371
eb911aa8 1372 for (uint8_t i = 1; i < 6; ++i){
1373 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
e0165dcf 1374 }
1375 calccrc &= 0xff;
1376 calccrc = 0xff - calccrc;
1377
eb911aa8 1378 if (crc == calccrc) {
1379 snprintf(crcStr, 3, "ok");
1380 retval = 1;
1381 } else {
bb73c58d 1382 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
eb911aa8 1383
1384 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1385 retval = 0;
1386 }
e0165dcf 1387
eb911aa8 1388 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
e0165dcf 1389 setDemodBuf(BitStream,64,idx);
1390 if (g_debugMode){
bb73c58d 1391 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
e0165dcf 1392 printDemodBuff();
eb911aa8 1393 }
1394 return retval;
b3b70669 1395}
1e090a61 1396
1e090a61 1397//by marshmellow
1398//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1399//print full AWID Prox ID and some bit format details if found
1400int CmdFSKdemodAWID(const char *Cmd)
1401{
e0165dcf 1402 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1403 size_t size = getFromGraphBuf(BitStream);
1404 if (size==0) return 0;
1405
1406 //get binary from fsk wave
1407 int idx = AWIDdemodFSK(BitStream, &size);
1408 if (idx<=0){
eb891c38 1409 if (g_debugMode){
e0165dcf 1410 if (idx == -1)
bb73c58d 1411 PrintAndLog("DEBUG: Error - AWID not enough samples");
e0165dcf 1412 else if (idx == -2)
bb73c58d 1413 PrintAndLog("DEBUG: Error - AWID only noise found");
e0165dcf 1414 else if (idx == -3)
bb73c58d 1415 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
e0165dcf 1416 else if (idx == -4)
1417 PrintAndLog("DEBUG: Error - AWID preamble not found");
1418 else if (idx == -5)
bb73c58d 1419 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
e0165dcf 1420 else
bb73c58d 1421 PrintAndLog("DEBUG: Error - AWID error %d",idx);
e0165dcf 1422 }
1423 return 0;
1424 }
1425
1426 // Index map
1427 // 0 10 20 30 40 50 60
1428 // | | | | | | |
1429 // 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
1430 // -----------------------------------------------------------------------------
70459879 1431 // 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 1432 // 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
1433 // |---26 bit---| |-----117----||-------------142-------------|
1434 // b = format bit len, o = odd parity of last 3 bits
1435 // f = facility code, c = card number
1436 // w = wiegand parity
1437 // (26 bit format shown)
1e090a61 1438
e0165dcf 1439 //get raw ID before removing parities
1440 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1441 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1442 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1443 setDemodBuf(BitStream,96,idx);
1444
1445 size = removeParity(BitStream, idx+8, 4, 1, 88);
1446 if (size != 66){
bb73c58d 1447 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
e0165dcf 1448 return 0;
1449 }
1450 // ok valid card found!
1451
1452 // Index map
1453 // 0 10 20 30 40 50 60
1454 // | | | | | | |
1455 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1456 // -----------------------------------------------------------------------------
1457 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1458 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1459 // |26 bit| |-117--| |-----142------|
204b7084 1460 //
6a4271d1 1461 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1462 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1463 // |50 bit| |----4000------| |-----------2248975------------|
e0165dcf 1464 // b = format bit len, o = odd parity of last 3 bits
1465 // f = facility code, c = card number
1466 // w = wiegand parity
e0165dcf 1467
1468 uint32_t fc = 0;
1469 uint32_t cardnum = 0;
1470 uint32_t code1 = 0;
1471 uint32_t code2 = 0;
204b7084 1472 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
87c10b2a 1473
204b7084 1474 switch(fmtLen) {
1475 case 26:
1476 fc = bytebits_to_byte(BitStream + 9, 8);
1477 cardnum = bytebits_to_byte(BitStream + 17, 16);
1478 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
6a4271d1 1479 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1480 break;
87c10b2a 1481 case 34:
1482 fc = bytebits_to_byte(BitStream + 9, 8);
1483 cardnum = bytebits_to_byte(BitStream + 17, 24);
1484 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1485 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1486 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1487 break;
1488 case 37:
1489 fc = bytebits_to_byte(BitStream + 9, 13);
1490 cardnum = bytebits_to_byte(BitStream + 22, 18);
1491 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1492 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1493 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1494 break;
1495 // case 40:
1496 // break;
204b7084 1497 case 50:
1498 fc = bytebits_to_byte(BitStream + 9, 16);
1499 cardnum = bytebits_to_byte(BitStream + 25, 32);
1500 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1501 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
6a4271d1 1502 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 1503 break;
1504 default:
1505 if (fmtLen > 32 ) {
1506 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1507 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1508 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
6a4271d1 1509 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
204b7084 1510 } else {
1511 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1512 code1 = bytebits_to_byte(BitStream+8,fmtLen);
6a4271d1 1513 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1514 }
1515 break;
e0165dcf 1516 }
204b7084 1517
e0165dcf 1518 if (g_debugMode){
bb73c58d 1519 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
e0165dcf 1520 printDemodBuff();
1521 }
e0165dcf 1522 return 1;
1e090a61 1523}
1524
1525//by marshmellow
1526//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1527//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1528int CmdFSKdemodPyramid(const char *Cmd)
1529{
e0165dcf 1530 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1531 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1532 size_t size = getFromGraphBuf(BitStream);
1533 if (size==0) return 0;
1534
1535 //get binary from fsk wave
1536 int idx = PyramiddemodFSK(BitStream, &size);
1537 if (idx < 0){
eb891c38 1538 if (g_debugMode){
e0165dcf 1539 if (idx == -5)
c08c796e 1540 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
e0165dcf 1541 else if (idx == -1)
c08c796e 1542 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
e0165dcf 1543 else if (idx == -2)
c08c796e 1544 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
e0165dcf 1545 else if (idx == -3)
c08c796e 1546 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
e0165dcf 1547 else if (idx == -4)
c08c796e 1548 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
e0165dcf 1549 else
c08c796e 1550 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
e0165dcf 1551 }
1552 return 0;
1553 }
1554 // Index map
1555 // 0 10 20 30 40 50 60
1556 // | | | | | | |
1557 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1558 // -----------------------------------------------------------------------------
1559 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1560 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1561
1562 // 64 70 80 90 100 110 120
1563 // | | | | | | |
1564 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1565 // -----------------------------------------------------------------------------
1566 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1567 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1568 // |---115---||---------71---------|
1569 // s = format start bit, o = odd parity of last 7 bits
1570 // f = facility code, c = card number
1571 // w = wiegand parity, x = extra space for other formats
71cb7328 1572 // p = CRC8maxim checksum
e0165dcf 1573 // (26 bit format shown)
1574
1575 //get bytes for checksum calc
1576 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1577 uint8_t csBuff[14] = {0x00};
1578 for (uint8_t i = 0; i < 13; i++){
1579 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1580 }
1581 //check checksum calc
1582 //checksum calc thanks to ICEMAN!!
c08c796e 1583 uint32_t checkCS = CRC8Maxim(csBuff, 13);
e0165dcf 1584
1585 //get raw ID before removing parities
c08c796e 1586 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1587 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1588 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1589 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1590 setDemodBuf(BitStream, 128, idx);
e0165dcf 1591
1592 size = removeParity(BitStream, idx+8, 8, 1, 120);
1593 if (size != 105){
c08c796e 1594 if (g_debugMode) {
1595 if ( size == 0)
1596 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1597 else
1598 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1599 }
e0165dcf 1600 return 0;
1601 }
1602
1603 // ok valid card found!
1604
1605 // Index map
1606 // 0 10 20 30 40 50 60 70
1607 // | | | | | | | |
1608 // 01234567890123456789012345678901234567890123456789012345678901234567890
1609 // -----------------------------------------------------------------------
1610 // 00000000000000000000000000000000000000000000000000000000000000000000000
1611 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1612
1613 // 71 80 90 100
1614 // | | | |
1615 // 1 2 34567890 1234567890123456 7 8901234
1616 // ---------------------------------------
1617 // 1 1 01110011 0000000001000110 0 1001010
1618 // s w ffffffff cccccccccccccccc w ppppppp
1619 // |--115-| |------71------|
1620 // s = format start bit, o = odd parity of last 7 bits
1621 // f = facility code, c = card number
1622 // w = wiegand parity, x = extra space for other formats
71cb7328 1623 // p = CRC8-Maxim checksum
e0165dcf 1624 // (26 bit format shown)
1625
1626 //find start bit to get fmtLen
1627 int j;
71cb7328 1628 for (j=0; j < size; ++j){
e0165dcf 1629 if(BitStream[j]) break;
1630 }
71cb7328 1631
e0165dcf 1632 uint8_t fmtLen = size-j-8;
1633 uint32_t fc = 0;
1634 uint32_t cardnum = 0;
1635 uint32_t code1 = 0;
71cb7328 1636
1637 if ( fmtLen == 26 ){
e0165dcf 1638 fc = bytebits_to_byte(BitStream+73, 8);
1639 cardnum = bytebits_to_byte(BitStream+81, 16);
1640 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1641 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 1642 } else if (fmtLen == 45) {
1643 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
e0165dcf 1644 fc = bytebits_to_byte(BitStream+53, 10);
1645 cardnum = bytebits_to_byte(BitStream+63, 32);
1646 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1647 } else {
1648 cardnum = bytebits_to_byte(BitStream+81, 16);
4b3655e7 1649 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
e0165dcf 1650 }
1651 if (checksum == checkCS)
1652 PrintAndLog("Checksum %02x passed", checksum);
1653 else
1654 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1655
1656 if (g_debugMode){
c08c796e 1657 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
e0165dcf 1658 printDemodBuff();
1659 }
1660 return 1;
1e090a61 1661}
1662
ad6219fc 1663// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
7f96433c 1664// 8 databits + 1 parity (1)
0df669a2 1665// CIITT 16 chksum
1666// NATIONAL CODE, ICAR database
ad6219fc 1667// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
0df669a2 1668// FLAG (animal/non-animal)
22a6a62f 1669/*
167038 IDbits
167110 country code
16721 extra app bit
167314 reserved bits
16741 animal bit
167516 ccitt CRC chksum over 64bit ID CODE.
167624 appli bits.
1677
ad6219fc 1678-- sample: 985121004515220 [ 37FF65B88EF94 ]
22a6a62f 1679*/
ad6219fc 1680int CmdFDXBdemodBI(const char *Cmd){
7f96433c 1681
1682 int invert = 1;
1683 int clk = 32;
1684 int errCnt = 0;
ad6219fc 1685 int maxErr = 0;
7f96433c 1686 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1687 size_t size = getFromGraphBuf(BitStream);
1688
ad6219fc 1689 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1690 if ( errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1691 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
0df669a2 1692 return 0;
1693 }
615f21dd 1694
ad6219fc 1695 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1696 if (errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1697 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
0df669a2 1698 return 0;
7f96433c 1699 }
0df669a2 1700
ad6219fc 1701 int preambleIndex = FDXBdemodBI(BitStream, &size);
7f96433c 1702 if (preambleIndex < 0){
bb73c58d 1703 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
7f96433c 1704 return 0;
1705 }
6426f6ba 1706 if (size != 128) {
bb73c58d 1707 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
6426f6ba 1708 return 0;
1709 }
0df669a2 1710
ad6219fc 1711 setDemodBuf(BitStream, 128, preambleIndex);
7f96433c 1712
b10a759f 1713 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
a71ece51 1714 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
b10a759f 1715 if ( size != 104 ) {
bb73c58d 1716 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
ad6219fc 1717 return 0;
0df669a2 1718 }
ad6219fc 1719 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
ad6219fc 1720
a71ece51 1721 //got a good demod
ad6219fc 1722 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1723 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1724 uint8_t dataBlockBit = BitStream[48];
1725 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1726 uint8_t animalBit = BitStream[63];
a71ece51 1727 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
ad6219fc 1728 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1729
a71ece51 1730 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
ad6219fc 1731 uint8_t raw[8];
1732 num_to_bytes(rawid, 8, raw);
a71ece51 1733
1734 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1735
1736 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
1737 PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
ad6219fc 1738 PrintAndLog("National Code: %012llu", NationalCode);
a71ece51 1739 PrintAndLog("CountryCode: %04u", countryCode);
c48211f7 1740
1741 PrintAndLog("Reserved/RFU: %u", reservedCode);
1742 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1743 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
a71ece51 1744 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
c48211f7 1745
1746 if (g_debugMode) {
1747 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1748 char *bin = sprint_bin_break(BitStream,size,16);
1749 PrintAndLog("DEBUG BinStream:\n%s",bin);
1750 }
615f21dd 1751 return 1;
1752}
1753
1754
e770c648 1755//by marshmellow
1756//attempt to psk1 demod graph buffer
4ac906d1 1757int PSKDemod(const char *Cmd, bool verbose)
e770c648 1758{
e0165dcf 1759 int invert=0;
1760 int clk=0;
1761 int maxErr=100;
1762 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1763 if (clk==1){
1764 invert=1;
1765 clk=0;
1766 }
1767 if (invert != 0 && invert != 1) {
24344f28 1768 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1769 return 0;
1770 }
1771 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1772 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1773 if (BitLen==0) return 0;
2eec55c8 1774 uint8_t carrier=countFC(BitStream, BitLen, 0);
e0165dcf 1775 if (carrier!=2 && carrier!=4 && carrier!=8){
1776 //invalid carrier
1777 return 0;
1778 }
6426f6ba 1779 if (g_debugMode){
1780 PrintAndLog("Carrier: rf/%d",carrier);
1781 }
e0165dcf 1782 int errCnt=0;
1783 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1784 if (errCnt > maxErr){
2767fc02 1785 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1786 return 0;
1787 }
1788 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
2767fc02 1789 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
e0165dcf 1790 return 0;
1791 }
2767fc02 1792 if (verbose || g_debugMode){
1793 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1794 if (errCnt>0){
2767fc02 1795 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1796 }
1797 }
1798 //prime demod buffer for output
1799 setDemodBuf(BitStream,BitLen,0);
1800 return 1;
4118b74d 1801}
e770c648 1802
4118b74d 1803// Indala 26 bit decode
1804// by marshmellow
1805// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1806int CmdIndalaDecode(const char *Cmd)
1807{
b4fb11ba 1808 int ans;
1809 if (strlen(Cmd)>0){
1810 ans = PSKDemod(Cmd, 0);
1811 } else{ //default to RF/32
1812 ans = PSKDemod("32", 0);
1813 }
4118b74d 1814
7a8a982b 1815 if (!ans){
bb73c58d 1816 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
ba1a299c 1817 return 0;
1818 }
56d0fb8e 1819
1820 uint8_t invert = 0;
57c7b44b 1821 size_t size = DemodBufferLen;
eb891c38 1822 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1823 if (startIdx < 0 || size > 224) {
bb73c58d 1824 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
ba1a299c 1825 return -1;
1826 }
eb891c38 1827 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
84871873 1828 if (invert)
bb73c58d 1829 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
ec75f5c1 1830
ba1a299c 1831 //convert UID to HEX
1832 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
eb911aa8 1833 uid1 = bytebits_to_byte(DemodBuffer,32);
1834 uid2 = bytebits_to_byte(DemodBuffer+32,32);
ba1a299c 1835 if (DemodBufferLen==64){
87c10b2a 1836 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1837 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1838 );
6426f6ba 1839 } else {
eb911aa8 1840 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1841 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1842 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1843 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1844 uid7 = bytebits_to_byte(DemodBuffer+192,32);
87c10b2a 1845 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1846 DemodBufferLen,
1847 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1848 );
ba1a299c 1849 }
b4fb11ba 1850 if (g_debugMode){
eb911aa8 1851 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
b4fb11ba 1852 printDemodBuff();
1853 }
ba1a299c 1854 return 1;
4118b74d 1855}
1856
411105e0 1857int CmdPSKNexWatch(const char *Cmd)
1858{
1859 if (!PSKDemod("", false)) return 0;
56d0fb8e 1860
411105e0 1861 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};
1862 size_t startIdx = 0, size = DemodBufferLen;
56d0fb8e 1863
1864 // sanity check.
1865 if ( size < sizeof(preamble) + 100) return 0;
1866
411105e0 1867 bool invert = false;
1868 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1869 // if didn't find preamble try again inverting
1870 if (!PSKDemod("1", false)) return 0;
56d0fb8e 1871
411105e0 1872 size = DemodBufferLen;
1873 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1874 invert = true;
1875 }
1876 if (size != 128) return 0;
1877 setDemodBuf(DemodBuffer, size, startIdx+4);
1878 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1879 //get ID
1880 uint32_t ID = 0;
1881 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1882 for (uint8_t idx=0; idx<8; idx++){
1883 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1884 }
1885 }
1886 //parity check (TBD)
1887
1888 //checksum check (TBD)
1889
1890 //output
1891 PrintAndLog("NexWatch ID: %d", ID);
1892 if (invert){
bb73c58d 1893 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
411105e0 1894 for (uint8_t idx=0; idx<size; idx++)
1895 DemodBuffer[idx] ^= 1;
1896 }
1897
1898 CmdPrintDemodBuff("x");
1899 return 1;
1900}
1901
3acac886 1902int CmdPSKIdteck(const char *Cmd) {
1903
1904 if (!PSKDemod("", false)) {
1905 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1906 return 0;
1907 }
1908 size_t size = DemodBufferLen;
1909
1910 //get binary from PSK1 wave
1911 int idx = IdteckDemodPSK(DemodBuffer, &size);
1912 if (idx < 0){
1913 if (g_debugMode){
1914 if (idx == -1)
1915 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1916 else if (idx == -2)
1917 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1918 else if (idx == -3)
1919 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1920 else
1921 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1922 }
1923
1924 // if didn't find preamble try again inverting
1925 if (!PSKDemod("1", false)) {
1926 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1927 return 0;
1928 }
1929 idx = IdteckDemodPSK(DemodBuffer, &size);
1930 if (idx < 0){
1931 if (g_debugMode){
1932 if (idx == -1)
1933 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1934 else if (idx == -2)
1935 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1936 else if (idx == -3)
1937 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1938 else
1939 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1940 }
1941 return 0;
1942 }
1943 }
1944 setDemodBuf(DemodBuffer, 64, idx);
1945
1946 //got a good demod
1947 uint32_t id = 0;
1948 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1949 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1950
1951 //parity check (TBD)
1952 //checksum check (TBD)
1953
1954 //output
1955 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1956 return 1;
1957}
1958
04d2721b 1959// by marshmellow
e770c648 1960// takes 3 arguments - clock, invert, maxErr as integers
1961// attempts to demodulate nrz only
1962// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1963int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1964{
e0165dcf 1965 int invert=0;
1966 int clk=0;
1967 int maxErr=100;
1968 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1969 if (clk==1){
1970 invert=1;
1971 clk=0;
1972 }
1973 if (invert != 0 && invert != 1) {
1974 PrintAndLog("Invalid argument: %s", Cmd);
1975 return 0;
1976 }
1977 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1978 size_t BitLen = getFromGraphBuf(BitStream);
1979 if (BitLen==0) return 0;
1980 int errCnt=0;
6426f6ba 1981 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
e0165dcf 1982 if (errCnt > maxErr){
1983 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1984 return 0;
1985 }
2eec55c8 1986 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1987 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1988 return 0;
1989 }
1990 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
1991 //prime demod buffer for output
1992 setDemodBuf(BitStream,BitLen,0);
1993
2767fc02 1994 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1995 if (verbose || g_debugMode) {
1996 PrintAndLog("NRZ demoded bitstream:");
1997 // Now output the bitstream to the scrollback by line of 16 bits
1998 printDemodBuff();
1999 }
2000 return 1;
b4a2fcf6 2001}
2002
2003int CmdNRZrawDemod(const char *Cmd)
2004{
e0165dcf 2005 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2006 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
a0c7eea7 2007
e0165dcf 2008 return NRZrawDemod(Cmd, TRUE);
e770c648 2009}
2010
2011// by marshmellow
2012// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 2013// attempts to demodulate psk only
2014// prints binary found and saves in demodbuffer for further commands
e770c648 2015int CmdPSK1rawDemod(const char *Cmd)
4118b74d 2016{
e0165dcf 2017 int ans;
2018 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2019 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
a0c7eea7 2020
e0165dcf 2021 ans = PSKDemod(Cmd, TRUE);
2022 //output
2023 if (!ans){
2024 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2025 return 0;
2026 }
2767fc02 2027 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 2028 // Now output the bitstream to the scrollback by line of 16 bits
2029 printDemodBuff();
2030 return 1;
4118b74d 2031}
2032
04d2721b 2033// by marshmellow
19ff0210 2034// takes same args as cmdpsk1rawdemod
04d2721b 2035int CmdPSK2rawDemod(const char *Cmd)
2036{
56d0fb8e 2037 int ans = 0;
e0165dcf 2038 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2039 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
a0c7eea7 2040
56d0fb8e 2041 ans = PSKDemod(Cmd, TRUE);
e0165dcf 2042 if (!ans){
2043 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2044 return 0;
2045 }
2046 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2047 PrintAndLog("PSK2 demoded bitstream:");
2048 // Now output the bitstream to the scrollback by line of 16 bits
2049 printDemodBuff();
2050 return 1;
04d2721b 2051}
2052
19ff0210 2053// by marshmellow - combines all raw demod functions into one menu command
2054int CmdRawDemod(const char *Cmd)
2055{
2056 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
19ff0210 2057 char cmdp2 = Cmd[1];
2058 int ans = 0;
a0c7eea7 2059
a38f5a07 2060 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
a0c7eea7 2061 return usage_data_rawdemod();
2062
2063 if (cmdp == 'f' && cmdp2 == 's')
f8f894a5 2064 ans = CmdFSKrawdemod(Cmd+2);
a0c7eea7 2065 else if(cmdp == 'a' && cmdp2 == 'b')
f8f894a5 2066 ans = Cmdaskbiphdemod(Cmd+2);
a0c7eea7 2067 else if(cmdp == 'a' && cmdp2 == 'm')
f8f894a5 2068 ans = Cmdaskmandemod(Cmd+2);
a0c7eea7 2069 else if(cmdp == 'a' && cmdp2 == 'r')
f8f894a5 2070 ans = Cmdaskrawdemod(Cmd+2);
a0c7eea7 2071 else if(cmdp == 'n' && cmdp2 == 'r')
f8f894a5 2072 ans = CmdNRZrawDemod(Cmd+2);
a0c7eea7 2073 else if(cmdp == 'p' && cmdp2 == '1')
f8f894a5 2074 ans = CmdPSK1rawDemod(Cmd+2);
a0c7eea7 2075 else if(cmdp == 'p' && cmdp2 == '2')
f8f894a5 2076 ans = CmdPSK2rawDemod(Cmd+2);
a0c7eea7 2077 else
19ff0210 2078 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
a0c7eea7 2079
19ff0210 2080 return ans;
2081}
a0c7eea7 2082//iceman: diff sizes on the plotwindow?
7fe9b0b7 2083int CmdGrid(const char *Cmd)
2084{
e0165dcf 2085 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
a0c7eea7 2086 PlotGridXdefault = PlotGridX;
2087 PlotGridYdefault = PlotGridY;
e0165dcf 2088 RepaintGraphWindow();
2089 return 0;
7fe9b0b7 2090}
2091
2092int CmdHexsamples(const char *Cmd)
2093{
e0165dcf 2094 int i, j;
2095 int requested = 0;
2096 int offset = 0;
2097 char string_buf[25];
2098 char* string_ptr = string_buf;
2099 uint8_t got[BIGBUF_SIZE];
2100
2101 sscanf(Cmd, "%i %i", &requested, &offset);
2102
2103 /* if no args send something */
2104 if (requested == 0) {
2105 requested = 8;
2106 }
2107 if (offset + requested > sizeof(got)) {
2108 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2109 return 0;
2110 }
2111
2112 GetFromBigBuf(got,requested,offset);
2113 WaitForResponse(CMD_ACK,NULL);
2114
2115 i = 0;
2116 for (j = 0; j < requested; j++) {
2117 i++;
2118 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2119 if (i == 8) {
2120 *(string_ptr - 1) = '\0'; // remove the trailing space
2121 PrintAndLog("%s", string_buf);
2122 string_buf[0] = '\0';
2123 string_ptr = string_buf;
2124 i = 0;
2125 }
2126 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2127 *(string_ptr - 1) = '\0';
2128 PrintAndLog("%s", string_buf);
2129 string_buf[0] = '\0';
2130 }
2131 }
2132 return 0;
7fe9b0b7 2133}
2134
7fe9b0b7 2135int CmdHide(const char *Cmd)
2136{
e0165dcf 2137 HideGraphWindow();
2138 return 0;
7fe9b0b7 2139}
2140
78f5b1a7 2141//zero mean GraphBuffer
7fe9b0b7 2142int CmdHpf(const char *Cmd)
2143{
e0165dcf 2144 int i;
2145 int accum = 0;
7fe9b0b7 2146
e0165dcf 2147 for (i = 10; i < GraphTraceLen; ++i)
2148 accum += GraphBuffer[i];
a0c7eea7 2149
e0165dcf 2150 accum /= (GraphTraceLen - 10);
a0c7eea7 2151
e0165dcf 2152 for (i = 0; i < GraphTraceLen; ++i)
2153 GraphBuffer[i] -= accum;
7fe9b0b7 2154
e0165dcf 2155 RepaintGraphWindow();
2156 return 0;
7fe9b0b7 2157}
f6d9fb17
MHS		 2158
2159bool _headBit( BitstreamOut *stream)
2160{
2161 int bytepos = stream->position >> 3; // divide by 8
2162 int bitpos = (stream->position++) & 7; // mask out 00000111
2163 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2164}
2165
2166uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2167{
2168 int i;
2169 uint8_t val = 0;
a0c7eea7 2170 for(i = 0 ; i < bits_per_sample; i++)
f6d9fb17 2171 val |= (_headBit(b) << (7-i));
a0c7eea7 2172
f6d9fb17
MHS		 2173 return val;
2174}
7fe9b0b7 2175
1fbf8956 2176int getSamples(const char *Cmd, bool silent)
7fe9b0b7 2177{
e0165dcf 2178 //If we get all but the last byte in bigbuf,
2179 // we don't have to worry about remaining trash
2180 // in the last byte in case the bits-per-sample
2181 // does not line up on byte boundaries
2182
2183 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2184
2185 int n = strtol(Cmd, NULL, 0);
2186
52f2df61 2187 if ( n == 0 || n > sizeof(got))
e0165dcf 2188 n = sizeof(got);
2189
eb911aa8 2190 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
e0165dcf 2191 GetFromBigBuf(got,n,0);
eb911aa8 2192 if (!silent) PrintAndLog("Data fetched");
e0165dcf 2193 UsbCommand response;
c188b1b9 2194 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2195 PrintAndLog("timeout while waiting for reply.");
2196 return 1;
2197 }
2198
e0165dcf 2199 uint8_t bits_per_sample = 8;
2200
2201 //Old devices without this feature would send 0 at arg[0]
a0c7eea7 2202 if (response.arg[0] > 0) {
e0165dcf 2203 sample_config *sc = (sample_config *) response.d.asBytes;
eb911aa8 2204 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
e0165dcf 2205 bits_per_sample = sc->bits_per_sample;
2206 }
a0c7eea7 2207
2208 if (bits_per_sample < 8) {
eb911aa8 2209 if (!silent) PrintAndLog("Unpacking...");
e0165dcf 2210 BitstreamOut bout = { got, bits_per_sample * n, 0};
2211 int j =0;
e6432f05 2212 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2213 uint8_t sample = getByte(bits_per_sample, &bout);
2214 GraphBuffer[j] = ((int) sample )- 128;
2215 }
2216 GraphTraceLen = j;
eb911aa8 2217 if (!silent) PrintAndLog("Unpacked %d samples" , j );
a0c7eea7 2218 } else {
e0165dcf 2219 for (int j = 0; j < n; j++) {
2220 GraphBuffer[j] = ((int)got[j]) - 128;
2221 }
2222 GraphTraceLen = n;
2223 }
2224
2225 RepaintGraphWindow();
2226 return 0;
1fbf8956 2227}
2228
2229int CmdSamples(const char *Cmd)
2230{
e0165dcf 2231 return getSamples(Cmd, false);
7fe9b0b7 2232}
2233
d6a120a2
MHS		 2234int CmdTuneSamples(const char *Cmd)
2235{
3aa4014b 2236 int timeout = 0;
2237 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2238
c188b1b9 2239 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2240 clearCommandBuffer();
3aa4014b 2241 SendCommand(&c);
3aa4014b 2242 UsbCommand resp;
a0048c69 2243 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
3aa4014b 2244 timeout++;
2245 printf(".");
81b7e894 2246 fflush(stdout);
3aa4014b 2247 if (timeout > 7) {
2248 PrintAndLog("\nNo response from Proxmark. Aborting...");
2249 return 1;
2250 }
2251 }
2252
bb522918 2253#define NON_VOLTAGE 999
2254#define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2255#define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2256#define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2257#define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2258
3aa4014b 2259 int peakv, peakf;
2260 int vLf125, vLf134, vHf;
2261 vLf125 = resp.arg[0] & 0xffff;
2262 vLf134 = resp.arg[0] >> 16;
2263 vHf = resp.arg[1] & 0xffff;;
2264 peakf = resp.arg[2] & 0xffff;
2265 peakv = resp.arg[2] >> 16;
2266 PrintAndLog("");
bb522918 2267 if ( vLf125 > NON_VOLTAGE )
d801514d 2268 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
bb522918 2269 if ( vLf134 > NON_VOLTAGE )
d801514d 2270 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
efbf81da 2271 if ( peakv > NON_VOLTAGE && peakf > 0 )
d801514d 2272 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
bb522918 2273 if ( vHf > NON_VOLTAGE )
d801514d 2274 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2275
bb522918 2276
0d0d0499 2277
2278 if (peakv < LF_UNUSABLE_V)
3aa4014b 2279 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2280 else if (peakv < LF_MARGINAL_V)
3aa4014b 2281 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2282 if (vHf < HF_UNUSABLE_V)
3aa4014b 2283 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2284 else if (vHf < HF_MARGINAL_V)
3aa4014b 2285 PrintAndLog("# Your HF antenna is marginal.");
2286
0d0d0499 2287 if (peakv >= LF_UNUSABLE_V) {
2288 for (int i = 0; i < 256; i++) {
2289 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2290 }
2291 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2292 PrintAndLog("\n");
2293 GraphTraceLen = 256;
2294 ShowGraphWindow();
abd16c45 2295 RepaintGraphWindow();
ba1a299c 2296 }
b4fb11ba 2297 return 0;
d6a120a2
MHS		 2298}
2299
7fe9b0b7 2300int CmdLoad(const char *Cmd)
2301{
e0165dcf 2302 char filename[FILE_PATH_SIZE] = {0x00};
2303 int len = 0;
b915fda3 2304
e0165dcf 2305 len = strlen(Cmd);
2306 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2307 memcpy(filename, Cmd, len);
b915fda3 2308
e0165dcf 2309 FILE *f = fopen(filename, "r");
2310 if (!f) {
c188b1b9 2311 PrintAndLog("couldn't open '%s'", filename);
e0165dcf 2312 return 0;
2313 }
2314
2315 GraphTraceLen = 0;
2316 char line[80];
2317 while (fgets(line, sizeof (line), f)) {
2318 GraphBuffer[GraphTraceLen] = atoi(line);
2319 GraphTraceLen++;
2320 }
a38f5a07 2321 if (f)
2dcf60f3 2322 fclose(f);
a38f5a07 2323
e0165dcf 2324 PrintAndLog("loaded %d samples", GraphTraceLen);
2325 RepaintGraphWindow();
2326 return 0;
7fe9b0b7 2327}
2328
2329int CmdLtrim(const char *Cmd)
2330{
e0165dcf 2331 int ds = atoi(Cmd);
c188b1b9 2332
2333 if (GraphTraceLen <= 0) return 0;
2334
e0165dcf 2335 for (int i = ds; i < GraphTraceLen; ++i)
2336 GraphBuffer[i-ds] = GraphBuffer[i];
7fe9b0b7 2337
c188b1b9 2338 GraphTraceLen -= ds;
e0165dcf 2339 RepaintGraphWindow();
2340 return 0;
7fe9b0b7 2341}
ec75f5c1 2342
2343// trim graph to input argument length
9ec1416a 2344int CmdRtrim(const char *Cmd)
2345{
e0165dcf 2346 int ds = atoi(Cmd);
e0165dcf 2347 GraphTraceLen = ds;
e0165dcf 2348 RepaintGraphWindow();
2349 return 0;
9ec1416a 2350}
7fe9b0b7 2351
7fe9b0b7 2352int CmdNorm(const char *Cmd)
2353{
e0165dcf 2354 int i;
2355 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2356
e0165dcf 2357 for (i = 10; i < GraphTraceLen; ++i) {
a0c7eea7 2358 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2359 if (GraphBuffer[i] < min) min = GraphBuffer[i];
e0165dcf 2360 }
7fe9b0b7 2361
e0165dcf 2362 if (max != min) {
2363 for (i = 0; i < GraphTraceLen; ++i) {
a0c7eea7 2364 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2365 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2366 }
2367 }
2368 RepaintGraphWindow();
2369 return 0;
7fe9b0b7 2370}
2371
2372int CmdPlot(const char *Cmd)
2373{
e0165dcf 2374 ShowGraphWindow();
2375 return 0;
7fe9b0b7 2376}
2377
2378int CmdSave(const char *Cmd)
2379{
e0165dcf 2380 char filename[FILE_PATH_SIZE] = {0x00};
2381 int len = 0;
b915fda3 2382
e0165dcf 2383 len = strlen(Cmd);
2384 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2385 memcpy(filename, Cmd, len);
2386
e0165dcf 2387 FILE *f = fopen(filename, "w");
2388 if(!f) {
2389 PrintAndLog("couldn't open '%s'", filename);
2390 return 0;
2391 }
c621ae06 2392
2393 for (int i = 0; i < GraphTraceLen; i++)
e0165dcf 2394 fprintf(f, "%d\n", GraphBuffer[i]);
c621ae06 2395
a38f5a07 2396 if (f)
2dcf60f3 2397 fclose(f);
a38f5a07 2398
e0165dcf 2399 PrintAndLog("saved to '%s'", Cmd);
2400 return 0;
7fe9b0b7 2401}
2402
2403int CmdScale(const char *Cmd)
2404{
e0165dcf 2405 CursorScaleFactor = atoi(Cmd);
2406 if (CursorScaleFactor == 0) {
2407 PrintAndLog("bad, can't have zero scale");
2408 CursorScaleFactor = 1;
2409 }
2410 RepaintGraphWindow();
2411 return 0;
7fe9b0b7 2412}
2413
d51b2eda
MHS		 2414int CmdDirectionalThreshold(const char *Cmd)
2415{
e0165dcf 2416 int8_t upThres = param_get8(Cmd, 0);
2417 int8_t downThres = param_get8(Cmd, 1);
2418
2419 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2420
2421 int lastValue = GraphBuffer[0];
2422 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2423
2424 for (int i = 1; i < GraphTraceLen; ++i) {
2425 // Apply first threshold to samples heading up
2426 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2427 {
2428 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2429 GraphBuffer[i] = 1;
2430 }
2431 // Apply second threshold to samples heading down
2432 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2433 {
2434 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2435 GraphBuffer[i] = -1;
2436 }
2437 else
2438 {
2439 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2440 GraphBuffer[i] = GraphBuffer[i-1];
e0165dcf 2441 }
2442 }
2443 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2444 RepaintGraphWindow();
2445 return 0;
d51b2eda
MHS		 2446}
2447
7fe9b0b7 2448int CmdZerocrossings(const char *Cmd)
2449{
e0165dcf 2450 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2451 CmdHpf("");
2452
2453 int sign = 1;
2454 int zc = 0;
2455 int lastZc = 0;
2456
2457 for (int i = 0; i < GraphTraceLen; ++i) {
2458 if (GraphBuffer[i] * sign >= 0) {
2459 // No change in sign, reproduce the previous sample count.
2460 zc++;
2461 GraphBuffer[i] = lastZc;
2462 } else {
2463 // Change in sign, reset the sample count.
2464 sign = -sign;
2465 GraphBuffer[i] = lastZc;
2466 if (sign > 0) {
2467 lastZc = zc;
2468 zc = 0;
2469 }
2470 }
2471 }
2472
2473 RepaintGraphWindow();
2474 return 0;
7fe9b0b7 2475}
2476
0de8e387 2477/**
2478 * @brief Utility for conversion via cmdline.
2479 * @param Cmd
2480 * @return
2481 */
2482int Cmdbin2hex(const char *Cmd)
2483{
2484 int bg =0, en =0;
2485 if(param_getptr(Cmd, &bg, &en, 0))
0de8e387 2486 return usage_data_bin2hex();
a0c7eea7 2487
0de8e387 2488 //Number of digits supplied as argument
2489 size_t length = en - bg +1;
2490 size_t bytelen = (length+7) / 8;
2491 uint8_t* arr = (uint8_t *) malloc(bytelen);
2492 memset(arr, 0, bytelen);
2493 BitstreamOut bout = { arr, 0, 0 };
2494
a0c7eea7 2495 for (; bg <= en ;bg++) {
0de8e387 2496 char c = Cmd[bg];
2497 if( c == '1') pushBit(&bout, 1);
2498 else if( c == '0') pushBit(&bout, 0);
2499 else PrintAndLog("Ignoring '%c'", c);
2500 }
2501
a0c7eea7 2502 if (bout.numbits % 8 != 0)
0de8e387 2503 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
0de8e387 2504
2505 //Uses printf instead of PrintAndLog since the latter
2506 // adds linebreaks to each printout - this way was more convenient since we don't have to
2507 // allocate a string and write to that first...
2508 for(size_t x = 0; x < bytelen ; x++)
0de8e387 2509 printf("%02X", arr[x]);
a0c7eea7 2510
0de8e387 2511 printf("\n");
2512 free(arr);
2513 return 0;
2514}
2515
0de8e387 2516int Cmdhex2bin(const char *Cmd)
2517{
2518 int bg =0, en =0;
f4d0ffd1 2519 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
0de8e387 2520
a0c7eea7 2521 while (bg <= en ) {
0de8e387 2522 char x = Cmd[bg++];
2523 // capitalize
2524 if (x >= 'a' && x <= 'f')
2525 x -= 32;
2526 // convert to numeric value
2527 if (x >= '0' && x <= '9')
2528 x -= '0';
2529 else if (x >= 'A' && x <= 'F')
2530 x -= 'A' - 10;
2531 else
2532 continue;
2533
2534 //Uses printf instead of PrintAndLog since the latter
2535 // adds linebreaks to each printout - this way was more convenient since we don't have to
2536 // allocate a string and write to that first...
2537
2538 for(int i= 0 ; i < 4 ; ++i)
2539 printf("%d",(x >> (3 - i)) & 1);
2540 }
2541 printf("\n");
2542
2543 return 0;
2544}
2545
40f6f2ff 2546int CmdDataIIR(const char *Cmd){
4c543dbd 2547 uint8_t k = param_get8(Cmd,0);
2548 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2549 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
40f6f2ff 2550 RepaintGraphWindow();
2551 return 0;
2552}
2553
ba1a299c 2554static command_t CommandTable[] =
7fe9b0b7 2555{
e0165dcf 2556 {"help", CmdHelp, 1, "This help"},
a152dea7 2557 {"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 2558 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2559 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
70459879 2560 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
e0165dcf 2561 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2562 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
a152dea7 2563 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
e0165dcf 2564 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
c621ae06 2565 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
e0165dcf 2566 {"dec", CmdDec, 1, "Decimate samples"},
a152dea7 2567 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
ad6219fc 2568 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2569 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2570 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2571 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2572 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2573 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2574 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2575 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2576 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2577 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
a152dea7 2578 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2579 {"hide", CmdHide, 1, "Hide graph window"},
2580 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2581 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2582 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2583 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
fef74fdc 2584 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2585 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2586 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
bf32dd92 2587 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2588 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2589 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2590 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2591 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2592 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
2593 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
a126332a 2594 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
e0165dcf 2595 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2596 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2597 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2598 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2599 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
40f6f2ff 2600 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
e0165dcf 2601 {NULL, NULL, 0, NULL}
7fe9b0b7 2602};
2603
4c36581b 2604int CmdData(const char *Cmd){
2605 clearCommandBuffer();
e0165dcf 2606 CmdsParse(CommandTable, Cmd);
2607 return 0;
7fe9b0b7 2608}
2609
2610int CmdHelp(const char *Cmd)
2611{
e0165dcf 2612 CmdsHelp(CommandTable);
2613 return 0;
7fe9b0b7 2614}
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