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ADD: `data detectclock` - added clock blocks in plot window. Its a draft. Not working...
[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{
a8fd088d 367 if (!id && !hi) return;
41611dee 368
369 PrintAndLog("EM410x %s pattern found", (hi) ? "XL" : "" );
370
371 uint64_t iii=1;
372 uint64_t id2lo=0;
373 uint32_t ii=0;
374 uint32_t i=0;
375 for (ii=5; ii>0;ii--){
376 for (i=0;i<8;i++){
377 id2lo=(id2lo<<1LL) | ((id & (iii << (i+((ii-1)*8)))) >> (i+((ii-1)*8)));
e0165dcf 378 }
41611dee 379 }
380
381 if (hi){
382 //output 88 bit em id
383 PrintAndLog("\nEM TAG ID : %06X%016" PRIX64, hi, id);
384 } else{
385 //output 40 bit em id
386 PrintAndLog("\nEM TAG ID : %010" PRIX64, id);
387 PrintAndLog("\nPossible de-scramble patterns");
388 PrintAndLog("Unique TAG ID : %010" PRIX64, id2lo);
389 PrintAndLog("HoneyWell IdentKey {");
390 PrintAndLog("DEZ 8 : %08" PRIu64, id & 0xFFFFFF);
391 PrintAndLog("DEZ 10 : %010" PRIu64, id & 0xFFFFFFFF);
392 PrintAndLog("DEZ 5.5 : %05" PRIu64 ".%05" PRIu64, (id>>16LL) & 0xFFFF, (id & 0xFFFF));
393 PrintAndLog("DEZ 3.5A : %03" PRIu64 ".%05" PRIu64, (id>>32ll), (id & 0xFFFF));
394 PrintAndLog("DEZ 3.5B : %03" PRIu64 ".%05" PRIu64, (id & 0xFF000000) >> 24, (id & 0xFFFF));
395 PrintAndLog("DEZ 3.5C : %03" PRIu64 ".%05" PRIu64, (id & 0xFF0000) >> 16, (id & 0xFFFF));
396 PrintAndLog("DEZ 14/IK2 : %014" PRIu64, id);
397 PrintAndLog("DEZ 15/IK3 : %015" PRIu64, id2lo);
398 PrintAndLog("DEZ 20/ZK : %02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64 "%02" PRIu64,
399 (id2lo & 0xf000000000) >> 36,
400 (id2lo & 0x0f00000000) >> 32,
401 (id2lo & 0x00f0000000) >> 28,
402 (id2lo & 0x000f000000) >> 24,
403 (id2lo & 0x0000f00000) >> 20,
404 (id2lo & 0x00000f0000) >> 16,
405 (id2lo & 0x000000f000) >> 12,
406 (id2lo & 0x0000000f00) >> 8,
407 (id2lo & 0x00000000f0) >> 4,
408 (id2lo & 0x000000000f)
409 );
410 uint64_t paxton = (((id>>32) << 24) | (id & 0xffffff)) + 0x143e00;
411 PrintAndLog("}\nOther : %05" PRIu64 "_%03" PRIu64 "_%08" PRIu64, (id&0xFFFF), ((id>>16LL) & 0xFF), (id & 0xFFFFFF));
412 PrintAndLog("Pattern Paxton : %" PRIu64 " [0x%" PRIX64 "]", paxton, paxton);
e0165dcf 413
41611dee 414 uint32_t p1id = (id & 0xFFFFFF);
415 uint8_t arr[32] = {0x00};
416 int i =0;
417 int j = 23;
418 for (; i < 24; ++i, --j ){
419 arr[i] = (p1id >> i) & 1;
420 }
e0165dcf 421
41611dee 422 uint32_t p1 = 0;
e0165dcf 423
41611dee 424 p1 |= arr[23] << 21;
425 p1 |= arr[22] << 23;
426 p1 |= arr[21] << 20;
427 p1 |= arr[20] << 22;
428
429 p1 |= arr[19] << 18;
430 p1 |= arr[18] << 16;
431 p1 |= arr[17] << 19;
432 p1 |= arr[16] << 17;
433
434 p1 |= arr[15] << 13;
435 p1 |= arr[14] << 15;
436 p1 |= arr[13] << 12;
437 p1 |= arr[12] << 14;
e0165dcf 438
41611dee 439 p1 |= arr[11] << 6;
440 p1 |= arr[10] << 2;
441 p1 |= arr[9] << 7;
442 p1 |= arr[8] << 1;
e0165dcf 443
41611dee 444 p1 |= arr[7] << 0;
445 p1 |= arr[6] << 8;
446 p1 |= arr[5] << 11;
447 p1 |= arr[4] << 3;
e0165dcf 448
41611dee 449 p1 |= arr[3] << 10;
450 p1 |= arr[2] << 4;
451 p1 |= arr[1] << 5;
452 p1 |= arr[0] << 9;
453 PrintAndLog("Pattern 1 : %d [0x%X]", p1, p1);
e0165dcf 454
41611dee 455 uint16_t sebury1 = id & 0xFFFF;
456 uint8_t sebury2 = (id >> 16) & 0x7F;
457 uint32_t sebury3 = id & 0x7FFFFF;
458 PrintAndLog("Pattern Sebury : %d %d %d [0x%X 0x%X 0x%X]", sebury1, sebury2, sebury3, sebury1, sebury2, sebury3);
e0165dcf 459 }
460 return;
eb191de6 461}
462
fef74fdc 463int AskEm410xDecode(bool verbose, uint32_t *hi, uint64_t *lo )
13d77ef9 464{
fef74fdc 465 size_t idx = 0;
da1f16d6 466 size_t size = DemodBufferLen;
c621ae06 467 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
da1f16d6 468 memcpy(BitStream, DemodBuffer, size);
469 int ans = Em410xDecode(BitStream, &size, &idx, hi, lo);
470 if ( ans < 0){
e0165dcf 471 if (g_debugMode){
da1f16d6 472 if (ans == -1)
473 PrintAndLog("DEBUG: Error - Em410x not only 0|1 in decoded bitstream");
a8fd088d 474 else if (ans == -2)
475 PrintAndLog("DEBUG: Error - Em410x preamble not found");
da1f16d6 476 else if (ans == -3)
477 PrintAndLog("DEBUG: Error - Em410x Size not correct: %d", size);
478 else if (ans == -4)
da1f16d6 479 PrintAndLog("DEBUG: Error - Em410x parity failed");
fef74fdc 480 }
da1f16d6 481 return 0;
e0165dcf 482 }
41611dee 483 if (!lo && !hi) {
484 PrintAndLog("DEBUG: Error - Em410x decoded to all zeros");
485 return 0;
486 }
487
da1f16d6 488 //set GraphBuffer for clone or sim command
489 setDemodBuf(BitStream, size, idx);
490 if (g_debugMode){
bb73c58d 491 PrintAndLog("DEBUG: Em410x idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
da1f16d6 492 printDemodBuff();
493 }
41611dee 494
495 if (verbose)
da1f16d6 496 printEM410x(*hi, *lo);
41611dee 497
da1f16d6 498 return 1;
13d77ef9 499}
fef74fdc 500
501int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
502{
05164399 503 bool st = TRUE;
504 if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
fef74fdc 505 return AskEm410xDecode(verbose, hi, lo);
506}
507
e888ed8e 508//by marshmellow
e770c648 509//takes 3 arguments - clock, invert and maxErr as integers
510//attempts to demodulate ask while decoding manchester
511//prints binary found and saves in graphbuffer for further commands
512int CmdAskEM410xDemod(const char *Cmd)
513{
e0165dcf 514 char cmdp = param_getchar(Cmd, 0);
a0c7eea7 515 if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')
516 return usage_data_askem410xdemod();
517
e0165dcf 518 uint64_t lo = 0;
fef74fdc 519 uint32_t hi = 0;
520 return AskEm410xDemod(Cmd, &hi, &lo, true);
e770c648 521}
522
fef74fdc 523//by marshmellow
524//Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
525// (amp may not be needed anymore)
526//verbose will print results and demoding messages
527//emSearch will auto search for EM410x format in bitstream
528//askType switches decode: ask/raw = 0, ask/manchester = 1
05164399 529int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
c621ae06 530 int invert = 0;
531 int clk = 0;
532 int maxErr = 100;
533 int maxLen = 0;
a9eeb576 534 uint8_t askamp = 0;
fef74fdc 535 char amp = param_getchar(Cmd, 0);
c621ae06 536 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
fef74fdc 537 sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
bf32dd92 538 if (!maxLen) maxLen = BIGBUF_SIZE;
e0165dcf 539 if (invert != 0 && invert != 1) {
540 PrintAndLog("Invalid argument: %s", Cmd);
541 return 0;
542 }
543 if (clk==1){
544 invert=1;
545 clk=0;
546 }
547 size_t BitLen = getFromGraphBuf(BitStream);
31649387 548 if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
fef74fdc 549 if (BitLen<255) return 0;
23f0a7d8 550 if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
05164399 551 int foundclk = 0;
a38f5a07 552 //amp before ST check
bd09006a 553 if (amp == 'a' || amp == 'A')
a38f5a07 554 askAmp(BitStream, BitLen);
bd09006a 555
05164399 556 bool st = false;
a9eeb576 557 size_t ststart = 0, stend = 0;
558 if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend);
05164399 559 if (st) {
560 *stCheck = st;
561 clk = (clk == 0) ? foundclk : clk;
a9eeb576 562 CursorCPos = ststart;
563 CursorDPos = stend;
564 if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers");
05164399 565 }
a9eeb576 566 int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType);
fef74fdc 567 if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
2767fc02 568 if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
e0165dcf 569 return 0;
570 }
31649387 571 if (errCnt > maxErr){
2767fc02 572 if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
573 return 0;
574 }
575 if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 576
577 //output
e0165dcf 578 setDemodBuf(BitStream,BitLen,0);
fef74fdc 579 if (verbose || g_debugMode){
c621ae06 580 if (errCnt>0)
581 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
582 if (askType)
583 PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
584 else
585 PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
fef74fdc 586 // Now output the bitstream to the scrollback by line of 16 bits
c621ae06 587 printDemodBuff();
fef74fdc 588 }
589 uint64_t lo = 0;
590 uint32_t hi = 0;
c621ae06 591 if (emSearch)
fef74fdc 592 AskEm410xDecode(true, &hi, &lo);
c621ae06 593
e0165dcf 594 return 1;
eb191de6 595}
05164399 596int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
597 bool st = false;
598 return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
599}
eb191de6 600
4ac906d1 601//by marshmellow
fef74fdc 602//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
4ac906d1 603//attempts to demodulate ask while decoding manchester
604//prints binary found and saves in graphbuffer for further commands
605int Cmdaskmandemod(const char *Cmd)
606{
e0165dcf 607 char cmdp = param_getchar(Cmd, 0);
a38f5a07 608 if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
a0c7eea7 609
05164399 610 bool st = TRUE;
611 if (Cmd[0]=='s')
612 return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
613 else if (Cmd[1] == 's')
614 return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
c621ae06 615
fef74fdc 616 return ASKDemod(Cmd, TRUE, TRUE, 1);
4ac906d1 617}
618
eb191de6 619//by marshmellow
d5a72d2f 620//manchester decode
eb191de6 621//stricktly take 10 and 01 and convert to 0 and 1
622int Cmdmandecoderaw(const char *Cmd)
623{
c621ae06 624 int i = 0;
625 int errCnt = 0;
626 size_t size = 0;
627 int invert = 0;
0ad1a1d4 628 int maxErr = 20;
e0165dcf 629 char cmdp = param_getchar(Cmd, 0);
c621ae06 630 if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') return usage_data_manrawdecode();
a0c7eea7 631
e0165dcf 632 if (DemodBufferLen==0) return 0;
c621ae06 633
634 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
635 int high = 0, low = 0;
636 for (; i < DemodBufferLen; ++i){
637 if (DemodBuffer[i] > high)
638 high=DemodBuffer[i];
639 else if(DemodBuffer[i] < low)
640 low=DemodBuffer[i];
641 BitStream[i] = DemodBuffer[i];
e0165dcf 642 }
1f918317 643 if (high>7 || low <0 ){
2767fc02 644 PrintAndLog("Error: please raw demod the wave first then manchester raw decode");
e0165dcf 645 return 0;
646 }
1f918317 647
fef74fdc 648 sscanf(Cmd, "%i %i", &invert, &maxErr);
31649387 649 size = i;
650 errCnt = manrawdecode(BitStream, &size, invert);
c621ae06 651 if (errCnt >= maxErr){
e0165dcf 652 PrintAndLog("Too many errors: %d",errCnt);
653 return 0;
654 }
655 PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt);
2767fc02 656 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
c621ae06 657 if (errCnt == 0){
e0165dcf 658 uint64_t id = 0;
659 uint32_t hi = 0;
660 size_t idx=0;
661 if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){
662 //need to adjust to set bitstream back to manchester encoded data
663 //setDemodBuf(BitStream, size, idx);
e0165dcf 664 printEM410x(hi, id);
665 }
666 }
667 return 1;
d5a72d2f 668}
669
670//by marshmellow
671//biphase decode
672//take 01 or 10 = 0 and 11 or 00 = 1
1e090a61 673//takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit
674// and "invert" default = 0 if 1 it will invert output
2767fc02 675// the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects]
d5a72d2f 676int CmdBiphaseDecodeRaw(const char *Cmd)
677{
ba1a299c 678 size_t size=0;
b41534d1 679 int offset=0, invert=0, maxErr=20, errCnt=0;
b4fb11ba 680 char cmdp = param_getchar(Cmd, 0);
c621ae06 681 if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_data_biphaserawdecode();
a0c7eea7 682
b41534d1 683 sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr);
684 if (DemodBufferLen==0){
685 PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first");
b4fb11ba 686 return 0;
687 }
b41534d1 688 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
689 memcpy(BitStream, DemodBuffer, DemodBufferLen);
690 size = DemodBufferLen;
1e090a61 691 errCnt=BiphaseRawDecode(BitStream, &size, offset, invert);
c621ae06 692 if (errCnt < 0){
b41534d1 693 PrintAndLog("Error during decode:%d", errCnt);
694 return 0;
695 }
c621ae06 696 if (errCnt > maxErr){
b4fb11ba 697 PrintAndLog("Too many errors attempting to decode: %d",errCnt);
698 return 0;
699 }
b41534d1 700
c621ae06 701 if (errCnt > 0)
2767fc02 702 PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt);
c621ae06 703
b41534d1 704 PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert);
2767fc02 705 PrintAndLog("%s", sprint_bin_break(BitStream, size, 16));
b41534d1 706
c621ae06 707 if (offset)
708 setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod
b4fb11ba 709 return 1;
eb191de6 710}
711
b41534d1 712//by marshmellow
713// - ASK Demod then Biphase decode GraphBuffer samples
714int ASKbiphaseDemod(const char *Cmd, bool verbose)
715{
716 //ask raw demod GraphBuffer first
b4c1f167 717 int offset=0, clk=0, invert=0, maxErr=0;
718 sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
1299c798 719
b41534d1 720 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
6c283951 721 size_t size = getFromGraphBuf(BitStream);
722 if (size == 0 ) {
723 if (g_debugMode) PrintAndLog("DEBUG: no data in graphbuf");
724 return 0;
725 }
b10a759f 726 //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
b4c1f167 727 int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1299c798 728 if ( errCnt < 0 || errCnt > maxErr ) {
729 if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
730 return 0;
731 }
732
733 //attempt to Biphase decode BitStream
734 errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
b41534d1 735 if (errCnt < 0){
bb73c58d 736 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode: %d", errCnt);
b41534d1 737 return 0;
738 }
739 if (errCnt > maxErr) {
bb73c58d 740 if (g_debugMode || verbose) PrintAndLog("DEBUG: Error BiphaseRawDecode too many errors: %d", errCnt);
b41534d1 741 return 0;
742 }
743 //success set DemodBuffer and return
744 setDemodBuf(BitStream, size, 0);
745 if (g_debugMode || verbose){
1299c798 746 PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
b41534d1 747 printDemodBuff();
748 }
749 return 1;
750}
751//by marshmellow - see ASKbiphaseDemod
752int Cmdaskbiphdemod(const char *Cmd)
753{
e0165dcf 754 char cmdp = param_getchar(Cmd, 0);
c621ae06 755 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ab();
a0c7eea7 756
e0165dcf 757 return ASKbiphaseDemod(Cmd, TRUE);
b41534d1 758}
759
8d960002 760//by marshmellow
761//attempts to demodulate and identify a G_Prox_II verex/chubb card
762//WARNING: if it fails during some points it will destroy the DemodBuffer data
763// but will leave the GraphBuffer intact.
764//if successful it will push askraw data back to demod buffer ready for emulation
765int CmdG_Prox_II_Demod(const char *Cmd)
766{
e0165dcf 767 if (!ASKbiphaseDemod(Cmd, FALSE)){
bb73c58d 768 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII ASKbiphaseDemod failed 1st try");
e0165dcf 769 return 0;
770 }
771 size_t size = DemodBufferLen;
772 //call lfdemod.c demod for gProxII
773 int ans = gProxII_Demod(DemodBuffer, &size);
774 if (ans < 0){
bb73c58d 775 if (g_debugMode) PrintAndLog("DEBUG: Error - gProxII demod");
e0165dcf 776 return 0;
777 }
c728b2b4 778 //got a good demod of 96 bits
779 uint8_t ByteStream[8] = {0x00};
c621ae06 780 uint8_t xorKey = 0;
c728b2b4 781 size_t startIdx = ans + 6; //start after 6 bit preamble
782
783 uint8_t bits_no_spacer[90];
784 //so as to not mess with raw DemodBuffer copy to a new sample array
785 memcpy(bits_no_spacer, DemodBuffer + startIdx, 90);
786 // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72))
787 size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run
788 if (bitLen != 72) {
c621ae06 789 if (g_debugMode)
790 PrintAndLog("DEBUG: Error - gProxII spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx);
791 return 0;
792 }
c728b2b4 793 // get key and then get all 8 bytes of payload decoded
794 xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8);
795 for (size_t idx = 0; idx < 8; idx++) {
796 ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
bb73c58d 797 if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
e0165dcf 798 }
31649387 799
800 //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
e0165dcf 801 uint8_t fmtLen = ByteStream[0]>>2;
802 uint32_t FC = 0;
803 uint32_t Card = 0;
c728b2b4 804 //get raw 96 bits to print
e0165dcf 805 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
806 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
807 uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
31649387 808 bool unknown = FALSE;
809 switch(fmtLen) {
810 case 36:
811 FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
812 Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
813 break;
814 case 26:
815 FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
816 Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
817 break;
818 default :
819 unknown = TRUE;
820 break;
e0165dcf 821 }
31649387 822 if ( !unknown)
823 PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
824 else
825 PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
826
e0165dcf 827 setDemodBuf(DemodBuffer+ans, 96, 0);
828 return 1;
8d960002 829}
830
a126332a 831//by marshmellow
832//see ASKDemod for what args are accepted
833int CmdVikingDemod(const char *Cmd)
834{
835 if (!ASKDemod(Cmd, false, false, 1)) {
bb73c58d 836 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking ASKDemod failed");
a126332a 837 return 0;
838 }
839 size_t size = DemodBufferLen;
4eabb8ad 840
a126332a 841 int ans = VikingDemod_AM(DemodBuffer, &size);
842 if (ans < 0) {
bb73c58d 843 if (g_debugMode) PrintAndLog("DEBUG: Error - Viking Demod %d %s", ans, (ans == -5)?"[chksum error]":"");
a126332a 844 return 0;
845 }
846 //got a good demod
847 uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
848 uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
849 uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
850 uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
851 PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
852 PrintAndLog("Raw: %08X%08X", raw1,raw2);
853 setDemodBuf(DemodBuffer+ans, 64, 0);
854 return 1;
855}
856
fef74fdc 857//by marshmellow - see ASKDemod
4ac906d1 858int Cmdaskrawdemod(const char *Cmd)
859{
e0165dcf 860 char cmdp = param_getchar(Cmd, 0);
c621ae06 861 if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_ar();
a0c7eea7 862
fef74fdc 863 return ASKDemod(Cmd, TRUE, FALSE, 0);
4ac906d1 864}
865
73d04bb4 866int AutoCorrelate(int window, bool SaveGrph, bool verbose)
7fe9b0b7 867{
e0165dcf 868 static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
869 size_t Correlation = 0;
870 int maxSum = 0;
871 int lastMax = 0;
872 if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window);
873 for (int i = 0; i < GraphTraceLen - window; ++i) {
874 int sum = 0;
875 for (int j = 0; j < window; ++j) {
876 sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256;
877 }
878 CorrelBuffer[i] = sum;
879 if (sum >= maxSum-100 && sum <= maxSum+100){
880 //another max
881 Correlation = i-lastMax;
882 lastMax = i;
883 if (sum > maxSum) maxSum = sum;
884 } else if (sum > maxSum){
885 maxSum=sum;
886 lastMax = i;
887 }
888 }
889 if (Correlation==0){
890 //try again with wider margin
891 for (int i = 0; i < GraphTraceLen - window; i++){
892 if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){
893 //another max
894 Correlation = i-lastMax;
895 lastMax = i;
896 //if (CorrelBuffer[i] > maxSum) maxSum = sum;
897 }
898 }
899 }
900 if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation);
901
902 if (SaveGrph){
903 GraphTraceLen = GraphTraceLen - window;
904 memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int));
905 RepaintGraphWindow();
906 }
907 return Correlation;
73d04bb4 908}
7fe9b0b7 909
73d04bb4 910int CmdAutoCorr(const char *Cmd)
911{
e0165dcf 912 char cmdp = param_getchar(Cmd, 0);
e3f9c50d 913 if (cmdp == 'h' || cmdp == 'H') return usage_data_autocorr();
e0165dcf 914 int window = 4000; //set default
c621ae06 915 char grph = 0;
e0165dcf 916 bool updateGrph = FALSE;
917 sscanf(Cmd, "%i %c", &window, &grph);
918
919 if (window >= GraphTraceLen) {
c621ae06 920 PrintAndLog("window must be smaller than trace (%d samples)", GraphTraceLen);
e0165dcf 921 return 0;
922 }
c621ae06 923 if (grph == 'g') updateGrph = TRUE;
e0165dcf 924 return AutoCorrelate(window, updateGrph, TRUE);
7fe9b0b7 925}
926
927int CmdBitsamples(const char *Cmd)
928{
e0165dcf 929 int cnt = 0;
930 uint8_t got[12288];
952a8bb5 931
a0c7eea7 932 GetFromBigBuf(got, sizeof(got), 0);
933 WaitForResponse(CMD_ACK, NULL);
7fe9b0b7 934
a0c7eea7 935 for (int j = 0; j < sizeof(got); j++) {
936 for (int k = 0; k < 8; k++) {
c621ae06 937 if(got[j] & (1 << (7 - k)))
a0c7eea7 938 GraphBuffer[cnt++] = 1;
c621ae06 939 else
a0c7eea7 940 GraphBuffer[cnt++] = 0;
a0c7eea7 941 }
e0165dcf 942 }
943 GraphTraceLen = cnt;
944 RepaintGraphWindow();
945 return 0;
7fe9b0b7 946}
947
7fe9b0b7 948int CmdBuffClear(const char *Cmd)
949{
c621ae06 950 char cmdp = param_getchar(Cmd, 0);
951 if (cmdp == 'h' || cmdp == 'H') return usage_data_buffclear();
952
a0c7eea7 953 UsbCommand c = {CMD_BUFF_CLEAR, {0,0,0}};
e0165dcf 954 SendCommand(&c);
955 ClearGraph(true);
956 return 0;
7fe9b0b7 957}
958
959int CmdDec(const char *Cmd)
960{
a0c7eea7 961 for (int i = 0; i < (GraphTraceLen >> 2); ++i)
e0165dcf 962 GraphBuffer[i] = GraphBuffer[i * 2];
a0c7eea7 963
964 GraphTraceLen >>= 2;
e0165dcf 965 PrintAndLog("decimated by 2");
966 RepaintGraphWindow();
967 return 0;
7fe9b0b7 968}
698b649e
MHS		 969/**
970 * Undecimate - I'd call it 'interpolate', but we'll save that
971 * name until someone does an actual interpolation command, not just
972 * blindly repeating samples
973 * @param Cmd
974 * @return
975 */
976int CmdUndec(const char *Cmd)
977{
a0c7eea7 978 char cmdp = param_getchar(Cmd, 0);
c621ae06 979 if (cmdp == 'h' || cmdp == 'H') return usage_data_undecimate();
c856ceae 980
1d42f25f 981 uint8_t factor = param_get8ex(Cmd, 0, 2, 10);
a0c7eea7 982
698b649e 983 //We have memory, don't we?
c621ae06 984 int swap[MAX_GRAPH_TRACE_LEN] = {0};
985 uint32_t g_index = 0, s_index = 0;
1d42f25f 986 while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN)
698b649e 987 {
c856ceae 988 int count = 0;
1d42f25f 989 for (count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++)
c856ceae 990 swap[s_index+count] = GraphBuffer[g_index];
1d42f25f 991 s_index += count;
992 g_index++;
698b649e 993 }
698b649e 994
1d42f25f 995 memcpy(GraphBuffer, swap, s_index * sizeof(int));
c856ceae
MHS		 996 GraphTraceLen = s_index;
997 RepaintGraphWindow();
698b649e
MHS		 998 return 0;
999}
7fe9b0b7 1000
ec75f5c1 1001//by marshmellow
1002//shift graph zero up or down based on input + or -
1003int CmdGraphShiftZero(const char *Cmd)
1004{
7d0efb37 1005 int shift = 0, shiftedVal = 0;
e0165dcf 1006 //set options from parameters entered with the command
1007 sscanf(Cmd, "%i", &shift);
7d0efb37 1008
c621ae06 1009 for(int i = 0; i < GraphTraceLen; i++){
1010 if ( i+shift >= GraphTraceLen)
1011 shiftedVal = GraphBuffer[i];
1012 else
1013 shiftedVal = GraphBuffer[i] + shift;
1014
7d0efb37 1015 if (shiftedVal > 127)
1016 shiftedVal = 127;
1017 else if (shiftedVal < -127)
1018 shiftedVal = -127;
1019 GraphBuffer[i] = shiftedVal;
e0165dcf 1020 }
1021 CmdNorm("");
1022 return 0;
ec75f5c1 1023}
1024
6de43508 1025//by marshmellow
1026//use large jumps in read samples to identify edges of waves and then amplify that wave to max
2767fc02 1027//similar to dirtheshold, threshold commands
6de43508 1028//takes a threshold length which is the measured length between two samples then determines an edge
1029int CmdAskEdgeDetect(const char *Cmd)
1030{
e0165dcf 1031 int thresLen = 25;
180ec86e 1032 int last = 0;
e0165dcf 1033 sscanf(Cmd, "%i", &thresLen);
49bbc60a 1034
180ec86e 1035 for(int i = 1; i < GraphTraceLen; ++i){
1036 if (GraphBuffer[i] - GraphBuffer[i-1] >= thresLen) //large jump up
1037 last = 127;
1038 else if(GraphBuffer[i] - GraphBuffer[i-1] <= -1 * thresLen) //large jump down
1039 last = -127;
1040
1041 GraphBuffer[i-1] = last;
e0165dcf 1042 }
1043 RepaintGraphWindow();
e0165dcf 1044 return 0;
6de43508 1045}
1046
7fe9b0b7 1047/* Print our clock rate */
ba1a299c 1048// uses data from graphbuffer
f3bf15e4 1049// adjusted to take char parameter for type of modulation to find the clock - by marshmellow.
7fe9b0b7 1050int CmdDetectClockRate(const char *Cmd)
1051{
f3bf15e4 1052 char cmdp = param_getchar(Cmd, 0);
a0c7eea7 1053 if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H')
1054 return usage_data_detectclock();
1055
a47ded5b 1056 int clock = 0;
a0c7eea7 1057 switch ( cmdp ) {
1058 case 'a' :
1059 case 'A' :
a47ded5b 1060 clock = GetAskClock(Cmd+1, true, false);
a0c7eea7 1061 break;
1062 case 'f' :
1063 case 'F' :
a47ded5b 1064 clock = GetFskClock("", true, false);
a0c7eea7 1065 break;
1066 case 'n' :
1067 case 'N' :
a47ded5b 1068 clock = GetNrzClock("", true, false);
a0c7eea7 1069 break;
1070 case 'p' :
1071 case 'P' :
a47ded5b 1072 clock = GetPskClock("", true, false);
a0c7eea7 1073 break;
1074 default :
1075 PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help");
1076 break;
f3bf15e4 1077 }
a47ded5b 1078 RepaintGraphWindow();
1079 return clock;
7fe9b0b7 1080}
66707a3b 1081
2767fc02 1082char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
1083{
98b2a3a1 1084 static char fType[8];
1085 memset(fType, 0x00, 8);
1086 char *fskType = fType;
2767fc02 1087 if (fchigh==10 && fclow==8){
1088 if (invert) //fsk2a
1fe0992d 1089 memcpy(fskType, "FSK2a", 5);
2767fc02 1090 else //fsk2
1fe0992d 1091 memcpy(fskType, "FSK2", 4);
2767fc02 1092 } else if (fchigh == 8 && fclow == 5) {
1093 if (invert)
1fe0992d 1094 memcpy(fskType, "FSK1", 4);
2767fc02 1095 else
1fe0992d 1096 memcpy(fskType, "FSK1a", 5);
2767fc02 1097 } else {
1fe0992d 1098 memcpy(fskType, "FSK??", 5);
2767fc02 1099 }
1100 return fskType;
1101}
1102
2fc2150e 1103//by marshmellow
eb191de6 1104//fsk raw demod and print binary
6de43508 1105//takes 4 arguments - Clock, invert, fchigh, fclow
1106//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
4ac906d1 1107int FSKrawDemod(const char *Cmd, bool verbose)
b3b70669 1108{
e0165dcf 1109 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
3f267966 1110 uint8_t rfLen, invert, fchigh, fclow;
e0165dcf 1111
3f267966 1112 //set defaults
e0165dcf 1113 //set options from parameters entered with the command
9332b857 1114 rfLen = param_get8(Cmd, 0);
1115 invert = param_get8(Cmd, 1);
1116 fchigh = param_get8(Cmd, 2);
1117 fclow = param_get8(Cmd, 3);
e0165dcf 1118 if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
98b2a3a1 1119 if (rfLen==1) {
2eec55c8 1120 invert = 1; //if invert option only is used
e0165dcf 1121 rfLen = 0;
98b2a3a1 1122 }
e0165dcf 1123 }
1124
1125 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1126 size_t BitLen = getFromGraphBuf(BitStream);
1127 if (BitLen==0) return 0;
1128 //get field clock lengths
98b2a3a1 1129 uint16_t fcs=0;
bf32dd92 1130 if (!fchigh || !fclow) {
98b2a3a1 1131 fcs = countFC(BitStream, BitLen, 1);
1132 if (!fcs) {
1133 fchigh = 10;
1134 fclow = 8;
1135 } else {
1136 fchigh = (fcs >> 8) & 0x00FF;
1137 fclow = fcs & 0x00FF;
e0165dcf 1138 }
1139 }
1140 //get bit clock length
98b2a3a1 1141 if (!rfLen) {
e0165dcf 1142 rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
bf32dd92 1143 if (!rfLen) rfLen = 50;
e0165dcf 1144 }
3f267966 1145 int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
98b2a3a1 1146 if (size > 0) {
3f267966 1147 setDemodBuf(BitStream, size, 0);
e0165dcf 1148
1149 // Now output the bitstream to the scrollback by line of 16 bits
2767fc02 1150 if (verbose || g_debugMode) {
c621ae06 1151 PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", rfLen, invert, fchigh, fclow);
3f267966 1152 PrintAndLog("%s decoded bitstream:", GetFSKType(fchigh, fclow, invert));
2767fc02 1153 printDemodBuff();
e0165dcf 1154 }
e0165dcf 1155 return 1;
3f267966 1156 } else {
2767fc02 1157 if (g_debugMode) PrintAndLog("no FSK data found");
e0165dcf 1158 }
1159 return 0;
b3b70669 1160}
1161
4ac906d1 1162//by marshmellow
1163//fsk raw demod and print binary
1164//takes 4 arguments - Clock, invert, fchigh, fclow
1165//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
1166int CmdFSKrawdemod(const char *Cmd)
1167{
e0165dcf 1168 char cmdp = param_getchar(Cmd, 0);
a38f5a07 1169 if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
a0c7eea7 1170
e0165dcf 1171 return FSKrawDemod(Cmd, TRUE);
4ac906d1 1172}
1173
eb191de6 1174//by marshmellow (based on existing demod + holiman's refactor)
1175//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
1176//print full HID Prox ID and some bit format details if found
b3b70669 1177int CmdFSKdemodHID(const char *Cmd)
1178{
e0165dcf 1179 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1180 uint32_t hi2=0, hi=0, lo=0;
1181
c621ae06 1182 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
e0165dcf 1183 size_t BitLen = getFromGraphBuf(BitStream);
1184 if (BitLen==0) return 0;
1185 //get binary from fsk wave
1186 int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1187 if (idx<0){
1188 if (g_debugMode){
1189 if (idx==-1){
bb73c58d 1190 PrintAndLog("DEBUG: Error - HID just noise detected");
e0165dcf 1191 } else if (idx == -2) {
bb73c58d 1192 PrintAndLog("DEBUG: Error - HID problem during FSK demod");
e0165dcf 1193 } else if (idx == -3) {
bb73c58d 1194 PrintAndLog("DEBUG: Error - HID preamble not found");
e0165dcf 1195 } else if (idx == -4) {
bb73c58d 1196 PrintAndLog("DEBUG: Error - HID error in Manchester data, SIZE: %d", BitLen);
e0165dcf 1197 } else {
bb73c58d 1198 PrintAndLog("DEBUG: Error - HID error demoding fsk %d", idx);
e0165dcf 1199 }
1200 }
1201 return 0;
1202 }
1203 if (hi2==0 && hi==0 && lo==0) {
bb73c58d 1204 if (g_debugMode) PrintAndLog("DEBUG: Error - HID no values found");
e0165dcf 1205 return 0;
1206 }
1207 if (hi2 != 0){ //extra large HID tags
c621ae06 1208 PrintAndLog("HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo>>1) & 0xFFFF);
e0165dcf 1209 }
1210 else { //standard HID tags <38 bits
1211 uint8_t fmtLen = 0;
1212 uint32_t fc = 0;
1213 uint32_t cardnum = 0;
1214 if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used
1215 uint32_t lo2=0;
1216 lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit
1217 uint8_t idx3 = 1;
1218 while(lo2>1){ //find last bit set to 1 (format len bit)
1219 lo2=lo2>>1;
1220 idx3++;
1221 }
1222 fmtLen =idx3+19;
1223 fc =0;
1224 cardnum=0;
1225 if(fmtLen==26){
1226 cardnum = (lo>>1)&0xFFFF;
1227 fc = (lo>>17)&0xFF;
1228 }
1229 if(fmtLen==34){
1230 cardnum = (lo>>1)&0xFFFF;
1231 fc= ((hi&1)<<15)|(lo>>17);
1232 }
1233 if(fmtLen==35){
1234 cardnum = (lo>>1)&0xFFFFF;
1235 fc = ((hi&1)<<11)|(lo>>21);
1236 }
1237 }
1238 else { //if bit 38 is not set then 37 bit format is used
1239 fmtLen = 37;
1240 fc = 0;
1241 cardnum = 0;
1242 if(fmtLen == 37){
1243 cardnum = (lo>>1)&0x7FFFF;
1244 fc = ((hi&0xF)<<12)|(lo>>20);
1245 }
1246 }
c621ae06 1247 PrintAndLog("HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo>>1) & 0xFFFF, fmtLen, fc, cardnum);
e0165dcf 1248 }
1249 setDemodBuf(BitStream,BitLen,idx);
1250 if (g_debugMode){
bb73c58d 1251 PrintAndLog("DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1252 printDemodBuff();
1253 }
1254 return 1;
ec75f5c1 1255}
1256
04d2721b 1257//by marshmellow
1258//Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded)
ec75f5c1 1259//print full Paradox Prox ID and some bit format details if found
1260int CmdFSKdemodParadox(const char *Cmd)
1261{
e0165dcf 1262 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1263 uint32_t hi2=0, hi=0, lo=0;
1264
1265 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1266 size_t BitLen = getFromGraphBuf(BitStream);
1267 if (BitLen==0) return 0;
1268 //get binary from fsk wave
1269 int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo);
1270 if (idx<0){
1271 if (g_debugMode){
1272 if (idx==-1){
bb73c58d 1273 PrintAndLog("DEBUG: Error - Paradox just noise detected");
e0165dcf 1274 } else if (idx == -2) {
bb73c58d 1275 PrintAndLog("DEBUG: Error - Paradox error demoding fsk");
e0165dcf 1276 } else if (idx == -3) {
bb73c58d 1277 PrintAndLog("DEBUG: Error - Paradox preamble not found");
e0165dcf 1278 } else if (idx == -4) {
bb73c58d 1279 PrintAndLog("DEBUG: Error - Paradox error in Manchester data");
e0165dcf 1280 } else {
bb73c58d 1281 PrintAndLog("DEBUG: Error - Paradox error demoding fsk %d", idx);
e0165dcf 1282 }
1283 }
1284 return 0;
1285 }
1286 if (hi2==0 && hi==0 && lo==0){
bb73c58d 1287 if (g_debugMode) PrintAndLog("DEBUG: Error - Paradox no value found");
e0165dcf 1288 return 0;
1289 }
1290 uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
1291 uint32_t cardnum = (lo>>10)&0xFFFF;
1292 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1293 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1294 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1295
1296 PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
1297 hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
1298 setDemodBuf(BitStream,BitLen,idx);
1299 if (g_debugMode){
bb73c58d 1300 PrintAndLog("DEBUG: Paradox idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
e0165dcf 1301 printDemodBuff();
1302 }
1303 return 1;
b3b70669 1304}
1305
2fc2150e 1306//by marshmellow
eb191de6 1307//IO-Prox demod - FSK RF/64 with preamble of 000000001
1308//print ioprox ID and some format details
b3b70669 1309int CmdFSKdemodIO(const char *Cmd)
1310{
eb911aa8 1311 int retval = 0;
1312 int idx = 0;
1313 char crcStr[20];
1314 memset(crcStr, 0x00, sizeof(crcStr) );
1315
e0165dcf 1316 //something in graphbuffer?
1317 if (GraphTraceLen < 65) {
bb73c58d 1318 if (g_debugMode)PrintAndLog("DEBUG: Error - IO prox not enough samples in GraphBuffer");
eb911aa8 1319 return retval;
e0165dcf 1320 }
1321 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
eb911aa8 1322 size_t bitlen = getFromGraphBuf(BitStream);
1323 if (bitlen == 0) return retval;
e0165dcf 1324
1325 //get binary from fsk wave
eb911aa8 1326 idx = IOdemodFSK(BitStream, bitlen);
e0165dcf 1327 if (idx<0){
1328 if (g_debugMode){
1329 if (idx==-1){
bb73c58d 1330 PrintAndLog("DEBUG: Error - IO prox just noise detected");
e0165dcf 1331 } else if (idx == -2) {
bb73c58d 1332 PrintAndLog("DEBUG: Error - IO prox not enough samples");
e0165dcf 1333 } else if (idx == -3) {
bb73c58d 1334 PrintAndLog("DEBUG: Error - IO prox error during fskdemod");
e0165dcf 1335 } else if (idx == -4) {
bb73c58d 1336 PrintAndLog("DEBUG: Error - IO prox preamble not found");
e0165dcf 1337 } else if (idx == -5) {
bb73c58d 1338 PrintAndLog("DEBUG: Error - IO prox separator bits not found");
e0165dcf 1339 } else {
bb73c58d 1340 PrintAndLog("DEBUG: Error - IO prox error demoding fsk %d", idx);
e0165dcf 1341 }
1342 }
eb911aa8 1343 return retval;
e0165dcf 1344 }
1345 if (idx==0){
2767fc02 1346 if (g_debugMode){
bb73c58d 1347 PrintAndLog("DEBUG: Error - IO prox data not found - FSK Bits: %d", bitlen);
eb911aa8 1348 if (bitlen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16));
e0165dcf 1349 }
eb911aa8 1350 return retval;
e0165dcf 1351 }
1352 //Index map
1353 //0 10 20 30 40 50 60
1354 //| | | | | | |
1355 //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
1356 //-----------------------------------------------------------------------------
1357 //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
1358 //
1359 //XSF(version)facility:codeone+codetwo (raw)
1360 //Handle the data
eb911aa8 1361 if (idx + 64 > bitlen) {
bb73c58d 1362 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox not enough bits found - bitlen: %d", bitlen);
eb911aa8 1363 return retval;
e0165dcf 1364 }
eb911aa8 1365
dc3a5846 1366 if (g_debugMode) {
1367 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]);
1368 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]);
1369 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]);
1370 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]);
1371 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]);
1372 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]);
1373 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]);
1374 }
1375
e0165dcf 1376 uint32_t code = bytebits_to_byte(BitStream+idx,32);
1377 uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32);
1378 uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4
1379 uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ;
1380 uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9
1381 uint8_t crc = bytebits_to_byte(BitStream+idx+54,8);
1382 uint16_t calccrc = 0;
1383
eb911aa8 1384 for (uint8_t i = 1; i < 6; ++i){
1385 calccrc += bytebits_to_byte(BitStream + idx + 9 * i ,8);
e0165dcf 1386 }
1387 calccrc &= 0xff;
1388 calccrc = 0xff - calccrc;
1389
eb911aa8 1390 if (crc == calccrc) {
1391 snprintf(crcStr, 3, "ok");
1392 retval = 1;
1393 } else {
bb73c58d 1394 if (g_debugMode) PrintAndLog("DEBUG: Error - IO prox crc failed");
eb911aa8 1395
1396 snprintf(crcStr, 20, "failed 0x%02X != 0x%02X", crc, calccrc);
1397 retval = 0;
1398 }
e0165dcf 1399
eb911aa8 1400 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]",version,facilitycode,number,code,code2, crcStr);
e0165dcf 1401 setDemodBuf(BitStream,64,idx);
1402 if (g_debugMode){
bb73c58d 1403 PrintAndLog("DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, 64);
e0165dcf 1404 printDemodBuff();
eb911aa8 1405 }
1406 return retval;
b3b70669 1407}
1e090a61 1408
1e090a61 1409//by marshmellow
1410//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
1411//print full AWID Prox ID and some bit format details if found
1412int CmdFSKdemodAWID(const char *Cmd)
1413{
e0165dcf 1414 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1415 size_t size = getFromGraphBuf(BitStream);
1416 if (size==0) return 0;
1417
1418 //get binary from fsk wave
1419 int idx = AWIDdemodFSK(BitStream, &size);
1420 if (idx<=0){
eb891c38 1421 if (g_debugMode){
e0165dcf 1422 if (idx == -1)
bb73c58d 1423 PrintAndLog("DEBUG: Error - AWID not enough samples");
e0165dcf 1424 else if (idx == -2)
bb73c58d 1425 PrintAndLog("DEBUG: Error - AWID only noise found");
e0165dcf 1426 else if (idx == -3)
bb73c58d 1427 PrintAndLog("DEBUG: Error - AWID problem during FSK demod");
e0165dcf 1428 else if (idx == -4)
1429 PrintAndLog("DEBUG: Error - AWID preamble not found");
1430 else if (idx == -5)
bb73c58d 1431 PrintAndLog("DEBUG: Error - AWID size not correct: %d", size);
e0165dcf 1432 else
bb73c58d 1433 PrintAndLog("DEBUG: Error - AWID error %d",idx);
e0165dcf 1434 }
1435 return 0;
1436 }
1437
1438 // Index map
1439 // 0 10 20 30 40 50 60
1440 // | | | | | | |
1441 // 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
1442 // -----------------------------------------------------------------------------
70459879 1443 // 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 1444 // 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
1445 // |---26 bit---| |-----117----||-------------142-------------|
1446 // b = format bit len, o = odd parity of last 3 bits
1447 // f = facility code, c = card number
1448 // w = wiegand parity
1449 // (26 bit format shown)
1e090a61 1450
e0165dcf 1451 //get raw ID before removing parities
1452 uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
1453 uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
1454 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
1455 setDemodBuf(BitStream,96,idx);
1456
1457 size = removeParity(BitStream, idx+8, 4, 1, 88);
1458 if (size != 66){
bb73c58d 1459 if (g_debugMode) PrintAndLog("DEBUG: Error - AWID at parity check-tag size does not match AWID format");
e0165dcf 1460 return 0;
1461 }
1462 // ok valid card found!
1463
1464 // Index map
1465 // 0 10 20 30 40 50 60
1466 // | | | | | | |
1467 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
1468 // -----------------------------------------------------------------------------
1469 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
1470 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1471 // |26 bit| |-117--| |-----142------|
204b7084 1472 //
6a4271d1 1473 // 00110010 0 0000111110100000 00000000000100010010100010000111 1 000000000
1474 // bbbbbbbb w ffffffffffffffff cccccccccccccccccccccccccccccccc w xxxxxxxxx
1475 // |50 bit| |----4000------| |-----------2248975------------|
e0165dcf 1476 // b = format bit len, o = odd parity of last 3 bits
1477 // f = facility code, c = card number
1478 // w = wiegand parity
e0165dcf 1479
1480 uint32_t fc = 0;
1481 uint32_t cardnum = 0;
1482 uint32_t code1 = 0;
1483 uint32_t code2 = 0;
204b7084 1484 uint8_t fmtLen = bytebits_to_byte(BitStream, 8);
87c10b2a 1485
204b7084 1486 switch(fmtLen) {
1487 case 26:
1488 fc = bytebits_to_byte(BitStream + 9, 8);
1489 cardnum = bytebits_to_byte(BitStream + 17, 16);
1490 code1 = bytebits_to_byte(BitStream + 8,fmtLen);
6a4271d1 1491 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1492 break;
87c10b2a 1493 case 34:
1494 fc = bytebits_to_byte(BitStream + 9, 8);
1495 cardnum = bytebits_to_byte(BitStream + 17, 24);
1496 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1497 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1498 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1499 break;
1500 case 37:
1501 fc = bytebits_to_byte(BitStream + 9, 13);
1502 cardnum = bytebits_to_byte(BitStream + 22, 18);
1503 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1504 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
1505 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo);
1506 break;
1507 // case 40:
1508 // break;
204b7084 1509 case 50:
1510 fc = bytebits_to_byte(BitStream + 9, 16);
1511 cardnum = bytebits_to_byte(BitStream + 25, 32);
1512 code1 = bytebits_to_byte(BitStream + 8, (fmtLen-32) );
1513 code2 = bytebits_to_byte(BitStream + 8 + (fmtLen-32), 32);
6a4271d1 1514 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 1515 break;
1516 default:
1517 if (fmtLen > 32 ) {
1518 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1519 code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
1520 code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
6a4271d1 1521 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
204b7084 1522 } else {
1523 cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
1524 code1 = bytebits_to_byte(BitStream+8,fmtLen);
6a4271d1 1525 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
204b7084 1526 }
1527 break;
e0165dcf 1528 }
204b7084 1529
e0165dcf 1530 if (g_debugMode){
bb73c58d 1531 PrintAndLog("DEBUG: AWID idx: %d, Len: %d Printing Demod Buffer:", idx, 96);
e0165dcf 1532 printDemodBuff();
1533 }
e0165dcf 1534 return 1;
1e090a61 1535}
1536
1537//by marshmellow
1538//Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
1539//print full Farpointe Data/Pyramid Prox ID and some bit format details if found
1540int CmdFSKdemodPyramid(const char *Cmd)
1541{
e0165dcf 1542 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
1543 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1544 size_t size = getFromGraphBuf(BitStream);
1545 if (size==0) return 0;
1546
1547 //get binary from fsk wave
1548 int idx = PyramiddemodFSK(BitStream, &size);
1549 if (idx < 0){
eb891c38 1550 if (g_debugMode){
e0165dcf 1551 if (idx == -5)
c08c796e 1552 PrintAndLog("DEBUG: Error - Pyramid: not enough samples");
e0165dcf 1553 else if (idx == -1)
c08c796e 1554 PrintAndLog("DEBUG: Error - Pyramid: only noise found");
e0165dcf 1555 else if (idx == -2)
c08c796e 1556 PrintAndLog("DEBUG: Error - Pyramid: problem during FSK demod");
e0165dcf 1557 else if (idx == -3)
c08c796e 1558 PrintAndLog("DEBUG: Error - Pyramid: size not correct: %d", size);
e0165dcf 1559 else if (idx == -4)
c08c796e 1560 PrintAndLog("DEBUG: Error - Pyramid: preamble not found");
e0165dcf 1561 else
c08c796e 1562 PrintAndLog("DEBUG: Error - Pyramid: idx: %d",idx);
e0165dcf 1563 }
1564 return 0;
1565 }
1566 // Index map
1567 // 0 10 20 30 40 50 60
1568 // | | | | | | |
1569 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
1570 // -----------------------------------------------------------------------------
1571 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
1572 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
1573
1574 // 64 70 80 90 100 110 120
1575 // | | | | | | |
1576 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
1577 // -----------------------------------------------------------------------------
1578 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
1579 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
1580 // |---115---||---------71---------|
1581 // s = format start bit, o = odd parity of last 7 bits
1582 // f = facility code, c = card number
1583 // w = wiegand parity, x = extra space for other formats
71cb7328 1584 // p = CRC8maxim checksum
e0165dcf 1585 // (26 bit format shown)
1586
1587 //get bytes for checksum calc
1588 uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8);
1589 uint8_t csBuff[14] = {0x00};
1590 for (uint8_t i = 0; i < 13; i++){
1591 csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8);
1592 }
1593 //check checksum calc
1594 //checksum calc thanks to ICEMAN!!
c08c796e 1595 uint32_t checkCS = CRC8Maxim(csBuff, 13);
e0165dcf 1596
1597 //get raw ID before removing parities
c08c796e 1598 uint32_t rawLo = bytebits_to_byte(BitStream+idx+96, 32);
1599 uint32_t rawHi = bytebits_to_byte(BitStream+idx+64, 32);
1600 uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32, 32);
1601 uint32_t rawHi3 = bytebits_to_byte(BitStream+idx, 32);
1602 setDemodBuf(BitStream, 128, idx);
e0165dcf 1603
1604 size = removeParity(BitStream, idx+8, 8, 1, 120);
1605 if (size != 105){
c08c796e 1606 if (g_debugMode) {
1607 if ( size == 0)
1608 PrintAndLog("DEBUG: Error - Pyramid: parity check failed - IDX: %d, hi3: %08X", idx, rawHi3);
1609 else
1610 PrintAndLog("DEBUG: Error - Pyramid: at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %08X", size, idx, rawHi3);
1611 }
e0165dcf 1612 return 0;
1613 }
1614
1615 // ok valid card found!
1616
1617 // Index map
1618 // 0 10 20 30 40 50 60 70
1619 // | | | | | | | |
1620 // 01234567890123456789012345678901234567890123456789012345678901234567890
1621 // -----------------------------------------------------------------------
1622 // 00000000000000000000000000000000000000000000000000000000000000000000000
1623 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
1624
1625 // 71 80 90 100
1626 // | | | |
1627 // 1 2 34567890 1234567890123456 7 8901234
1628 // ---------------------------------------
1629 // 1 1 01110011 0000000001000110 0 1001010
1630 // s w ffffffff cccccccccccccccc w ppppppp
1631 // |--115-| |------71------|
1632 // s = format start bit, o = odd parity of last 7 bits
1633 // f = facility code, c = card number
1634 // w = wiegand parity, x = extra space for other formats
71cb7328 1635 // p = CRC8-Maxim checksum
e0165dcf 1636 // (26 bit format shown)
1637
1638 //find start bit to get fmtLen
1639 int j;
71cb7328 1640 for (j=0; j < size; ++j){
e0165dcf 1641 if(BitStream[j]) break;
1642 }
71cb7328 1643
e0165dcf 1644 uint8_t fmtLen = size-j-8;
1645 uint32_t fc = 0;
1646 uint32_t cardnum = 0;
1647 uint32_t code1 = 0;
71cb7328 1648
1649 if ( fmtLen == 26 ){
e0165dcf 1650 fc = bytebits_to_byte(BitStream+73, 8);
1651 cardnum = bytebits_to_byte(BitStream+81, 16);
1652 code1 = bytebits_to_byte(BitStream+72,fmtLen);
1653 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 1654 } else if (fmtLen == 45) {
1655 fmtLen = 42; //end = 10 bits not 7 like 26 bit fmt
e0165dcf 1656 fc = bytebits_to_byte(BitStream+53, 10);
1657 cardnum = bytebits_to_byte(BitStream+63, 32);
1658 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
1659 } else {
1660 cardnum = bytebits_to_byte(BitStream+81, 16);
4b3655e7 1661 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
e0165dcf 1662 }
1663 if (checksum == checkCS)
1664 PrintAndLog("Checksum %02x passed", checksum);
1665 else
1666 PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS);
1667
1668 if (g_debugMode){
c08c796e 1669 PrintAndLog("DEBUG: Pyramid: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128);
e0165dcf 1670 printDemodBuff();
1671 }
1672 return 1;
1e090a61 1673}
1674
ad6219fc 1675// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
7f96433c 1676// 8 databits + 1 parity (1)
0df669a2 1677// CIITT 16 chksum
1678// NATIONAL CODE, ICAR database
ad6219fc 1679// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
0df669a2 1680// FLAG (animal/non-animal)
22a6a62f 1681/*
168238 IDbits
168310 country code
16841 extra app bit
168514 reserved bits
16861 animal bit
168716 ccitt CRC chksum over 64bit ID CODE.
168824 appli bits.
1689
ad6219fc 1690-- sample: 985121004515220 [ 37FF65B88EF94 ]
22a6a62f 1691*/
ad6219fc 1692int CmdFDXBdemodBI(const char *Cmd){
7f96433c 1693
1694 int invert = 1;
1695 int clk = 32;
1696 int errCnt = 0;
ad6219fc 1697 int maxErr = 0;
7f96433c 1698 uint8_t BitStream[MAX_DEMOD_BUF_LEN];
1699 size_t size = getFromGraphBuf(BitStream);
1700
ad6219fc 1701 errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
1702 if ( errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1703 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
0df669a2 1704 return 0;
1705 }
615f21dd 1706
ad6219fc 1707 errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
1708 if (errCnt < 0 || errCnt > maxErr ) {
bb73c58d 1709 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
0df669a2 1710 return 0;
7f96433c 1711 }
0df669a2 1712
ad6219fc 1713 int preambleIndex = FDXBdemodBI(BitStream, &size);
7f96433c 1714 if (preambleIndex < 0){
bb73c58d 1715 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
7f96433c 1716 return 0;
1717 }
6426f6ba 1718 if (size != 128) {
bb73c58d 1719 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB incorrect data length found");
6426f6ba 1720 return 0;
1721 }
0df669a2 1722
ad6219fc 1723 setDemodBuf(BitStream, 128, preambleIndex);
7f96433c 1724
b10a759f 1725 // remove marker bits (1's every 9th digit after preamble) (pType = 2)
a71ece51 1726 size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
b10a759f 1727 if ( size != 104 ) {
bb73c58d 1728 if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB error removeParity:: %d", size);
ad6219fc 1729 return 0;
0df669a2 1730 }
ad6219fc 1731 PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
ad6219fc 1732
a71ece51 1733 //got a good demod
ad6219fc 1734 uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
1735 uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
1736 uint8_t dataBlockBit = BitStream[48];
1737 uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
1738 uint8_t animalBit = BitStream[63];
a71ece51 1739 uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
ad6219fc 1740 uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
1741
a71ece51 1742 uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
ad6219fc 1743 uint8_t raw[8];
1744 num_to_bytes(rawid, 8, raw);
a71ece51 1745
1746 if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
1747
1748 uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
9c624f67 1749 PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
1750 PrintAndLog("National Code: %012" PRIu64, NationalCode);
a71ece51 1751 PrintAndLog("CountryCode: %04u", countryCode);
c48211f7 1752
1753 PrintAndLog("Reserved/RFU: %u", reservedCode);
1754 PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
1755 PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
a71ece51 1756 PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
c48211f7 1757
1758 if (g_debugMode) {
1759 PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
1760 char *bin = sprint_bin_break(BitStream,size,16);
1761 PrintAndLog("DEBUG BinStream:\n%s",bin);
1762 }
615f21dd 1763 return 1;
1764}
1765
1766
e770c648 1767//by marshmellow
1768//attempt to psk1 demod graph buffer
4ac906d1 1769int PSKDemod(const char *Cmd, bool verbose)
e770c648 1770{
5e9d59fe 1771 int invert = 0, clk = 0, maxErr = 100;
e0165dcf 1772 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1773 if (clk==1){
1774 invert=1;
1775 clk=0;
1776 }
1777 if (invert != 0 && invert != 1) {
24344f28 1778 if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
e0165dcf 1779 return 0;
1780 }
5e9d59fe 1781 uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
e0165dcf 1782 size_t BitLen = getFromGraphBuf(BitStream);
2ec87733 1783 if (BitLen==0) return 0;
5e9d59fe 1784
1785 uint8_t carrier = countFC(BitStream, BitLen, 0);
e0165dcf 1786 if (carrier!=2 && carrier!=4 && carrier!=8){
1787 //invalid carrier
1788 return 0;
1789 }
5e9d59fe 1790
1791 if (g_debugMode) PrintAndLog("Carrier: rf/%d",carrier);
1792
e0165dcf 1793 int errCnt=0;
1794 errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
1795 if (errCnt > maxErr){
5e9d59fe 1796 if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
e0165dcf 1797 return 0;
1798 }
1799 if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
5e9d59fe 1800 if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d", clk, invert, BitLen, errCnt);
e0165dcf 1801 return 0;
1802 }
2767fc02 1803 if (verbose || g_debugMode){
1804 PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen);
e0165dcf 1805 if (errCnt>0){
2767fc02 1806 PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 1807 }
1808 }
1809 //prime demod buffer for output
5e9d59fe 1810 setDemodBuf(BitStream, BitLen, 0);
e0165dcf 1811 return 1;
4118b74d 1812}
e770c648 1813
4118b74d 1814// Indala 26 bit decode
1815// by marshmellow
1816// optional arguments - same as CmdpskNRZrawDemod (clock & invert)
1817int CmdIndalaDecode(const char *Cmd)
1818{
b4fb11ba 1819 int ans;
1820 if (strlen(Cmd)>0){
1821 ans = PSKDemod(Cmd, 0);
1822 } else{ //default to RF/32
1823 ans = PSKDemod("32", 0);
1824 }
4118b74d 1825
7a8a982b 1826 if (!ans){
bb73c58d 1827 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala can't demod signal: %d",ans);
ba1a299c 1828 return 0;
1829 }
56d0fb8e 1830
1831 uint8_t invert = 0;
57c7b44b 1832 size_t size = DemodBufferLen;
eb891c38 1833 int startIdx = indala26decode(DemodBuffer, &size, &invert);
1834 if (startIdx < 0 || size > 224) {
bb73c58d 1835 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala wrong size, expected [64|224] got: %d", size);
ba1a299c 1836 return -1;
1837 }
eb891c38 1838 setDemodBuf(DemodBuffer, size, (size_t)startIdx);
84871873 1839 if (invert)
bb73c58d 1840 if (g_debugMode) PrintAndLog("DEBUG: Error - Indala had to invert bits");
ec75f5c1 1841
ba1a299c 1842 //convert UID to HEX
1843 uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
eb911aa8 1844 uid1 = bytebits_to_byte(DemodBuffer,32);
1845 uid2 = bytebits_to_byte(DemodBuffer+32,32);
ba1a299c 1846 if (DemodBufferLen==64){
87c10b2a 1847 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x)\n%s",
1848 DemodBufferLen, uid1, uid2, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1849 );
6426f6ba 1850 } else {
eb911aa8 1851 uid3 = bytebits_to_byte(DemodBuffer+64,32);
1852 uid4 = bytebits_to_byte(DemodBuffer+96,32);
1853 uid5 = bytebits_to_byte(DemodBuffer+128,32);
1854 uid6 = bytebits_to_byte(DemodBuffer+160,32);
1855 uid7 = bytebits_to_byte(DemodBuffer+192,32);
87c10b2a 1856 PrintAndLog("Indala Found - Bitlength %d, UID = (%x%08x%08x%08x%08x%08x%08x)\n%s",
1857 DemodBufferLen,
1858 uid1, uid2, uid3, uid4, uid5, uid6, uid7, sprint_bin_break(DemodBuffer,DemodBufferLen,32)
1859 );
ba1a299c 1860 }
b4fb11ba 1861 if (g_debugMode){
eb911aa8 1862 PrintAndLog("DEBUG: Indala - printing demodbuffer:");
b4fb11ba 1863 printDemodBuff();
1864 }
ba1a299c 1865 return 1;
4118b74d 1866}
1867
411105e0 1868int CmdPSKNexWatch(const char *Cmd)
1869{
1870 if (!PSKDemod("", false)) return 0;
56d0fb8e 1871
411105e0 1872 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};
1873 size_t startIdx = 0, size = DemodBufferLen;
56d0fb8e 1874
1875 // sanity check.
1876 if ( size < sizeof(preamble) + 100) return 0;
1877
411105e0 1878 bool invert = false;
1879 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){
1880 // if didn't find preamble try again inverting
1881 if (!PSKDemod("1", false)) return 0;
56d0fb8e 1882
411105e0 1883 size = DemodBufferLen;
1884 if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0;
1885 invert = true;
1886 }
1887 if (size != 128) return 0;
1888 setDemodBuf(DemodBuffer, size, startIdx+4);
1889 startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0)
1890 //get ID
1891 uint32_t ID = 0;
1892 for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){
1893 for (uint8_t idx=0; idx<8; idx++){
1894 ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)];
1895 }
1896 }
1897 //parity check (TBD)
1898
1899 //checksum check (TBD)
1900
1901 //output
1902 PrintAndLog("NexWatch ID: %d", ID);
1903 if (invert){
bb73c58d 1904 PrintAndLog("DEBUG: Error - NexWatch had to Invert - probably NexKey");
411105e0 1905 for (uint8_t idx=0; idx<size; idx++)
1906 DemodBuffer[idx] ^= 1;
1907 }
1908
1909 CmdPrintDemodBuff("x");
1910 return 1;
1911}
1912
3acac886 1913int CmdPSKIdteck(const char *Cmd) {
1914
1915 if (!PSKDemod("", false)) {
1916 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1917 return 0;
1918 }
1919 size_t size = DemodBufferLen;
1920
1921 //get binary from PSK1 wave
1922 int idx = IdteckDemodPSK(DemodBuffer, &size);
1923 if (idx < 0){
1924 if (g_debugMode){
1925 if (idx == -1)
1926 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1927 else if (idx == -2)
1928 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1929 else if (idx == -3)
1930 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1931 else
1932 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1933 }
1934
1935 // if didn't find preamble try again inverting
1936 if (!PSKDemod("1", false)) {
1937 if (g_debugMode) PrintAndLog("DEBUG: Error - Idteck PSKDemod failed");
1938 return 0;
1939 }
1940 idx = IdteckDemodPSK(DemodBuffer, &size);
1941 if (idx < 0){
1942 if (g_debugMode){
1943 if (idx == -1)
1944 PrintAndLog("DEBUG: Error - Idteck: not enough samples");
1945 else if (idx == -2)
1946 PrintAndLog("DEBUG: Error - Idteck: preamble not found");
1947 else if (idx == -3)
1948 PrintAndLog("DEBUG: Error - Idteck: size not correct: %d", size);
1949 else
1950 PrintAndLog("DEBUG: Error - Idteck: idx: %d",idx);
1951 }
1952 return 0;
1953 }
1954 }
1955 setDemodBuf(DemodBuffer, 64, idx);
1956
1957 //got a good demod
1958 uint32_t id = 0;
1959 uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
1960 uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
1961
1962 //parity check (TBD)
1963 //checksum check (TBD)
1964
1965 //output
1966 PrintAndLog("IDTECK Tag Found: Card ID %u , Raw: %08X%08X", id, raw1, raw2);
1967 return 1;
1968}
1969
04d2721b 1970// by marshmellow
e770c648 1971// takes 3 arguments - clock, invert, maxErr as integers
1972// attempts to demodulate nrz only
1973// prints binary found and saves in demodbuffer for further commands
b4a2fcf6 1974int NRZrawDemod(const char *Cmd, bool verbose)
e770c648 1975{
e0165dcf 1976 int invert=0;
1977 int clk=0;
1978 int maxErr=100;
1979 sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
1980 if (clk==1){
1981 invert=1;
1982 clk=0;
1983 }
1984 if (invert != 0 && invert != 1) {
1985 PrintAndLog("Invalid argument: %s", Cmd);
1986 return 0;
1987 }
1988 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
1989 size_t BitLen = getFromGraphBuf(BitStream);
1990 if (BitLen==0) return 0;
1991 int errCnt=0;
6426f6ba 1992 errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
e0165dcf 1993 if (errCnt > maxErr){
1994 if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1995 return 0;
1996 }
2eec55c8 1997 if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
e0165dcf 1998 if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
1999 return 0;
2000 }
2001 if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
2002 //prime demod buffer for output
2003 setDemodBuf(BitStream,BitLen,0);
2004
2767fc02 2005 if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
e0165dcf 2006 if (verbose || g_debugMode) {
2007 PrintAndLog("NRZ demoded bitstream:");
2008 // Now output the bitstream to the scrollback by line of 16 bits
2009 printDemodBuff();
2010 }
2011 return 1;
b4a2fcf6 2012}
2013
2014int CmdNRZrawDemod(const char *Cmd)
2015{
e0165dcf 2016 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2017 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
a0c7eea7 2018
e0165dcf 2019 return NRZrawDemod(Cmd, TRUE);
e770c648 2020}
2021
2022// by marshmellow
2023// takes 3 arguments - clock, invert, maxErr as integers
04d2721b 2024// attempts to demodulate psk only
2025// prints binary found and saves in demodbuffer for further commands
e770c648 2026int CmdPSK1rawDemod(const char *Cmd)
4118b74d 2027{
e0165dcf 2028 int ans;
2029 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2030 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
a0c7eea7 2031
e0165dcf 2032 ans = PSKDemod(Cmd, TRUE);
2033 //output
2034 if (!ans){
2035 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2036 return 0;
2037 }
2767fc02 2038 PrintAndLog("PSK1 demoded bitstream:");
e0165dcf 2039 // Now output the bitstream to the scrollback by line of 16 bits
2040 printDemodBuff();
2041 return 1;
4118b74d 2042}
2043
04d2721b 2044// by marshmellow
19ff0210 2045// takes same args as cmdpsk1rawdemod
04d2721b 2046int CmdPSK2rawDemod(const char *Cmd)
2047{
56d0fb8e 2048 int ans = 0;
e0165dcf 2049 char cmdp = param_getchar(Cmd, 0);
a38f5a07 2050 if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p2();
a0c7eea7 2051
56d0fb8e 2052 ans = PSKDemod(Cmd, TRUE);
e0165dcf 2053 if (!ans){
2054 if (g_debugMode) PrintAndLog("Error demoding: %d",ans);
2055 return 0;
2056 }
2057 psk1TOpsk2(DemodBuffer, DemodBufferLen);
2058 PrintAndLog("PSK2 demoded bitstream:");
2059 // Now output the bitstream to the scrollback by line of 16 bits
2060 printDemodBuff();
2061 return 1;
04d2721b 2062}
2063
19ff0210 2064// by marshmellow - combines all raw demod functions into one menu command
2065int CmdRawDemod(const char *Cmd)
2066{
2067 char cmdp = Cmd[0]; //param_getchar(Cmd, 0);
19ff0210 2068 char cmdp2 = Cmd[1];
2069 int ans = 0;
a0c7eea7 2070
a38f5a07 2071 if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
a0c7eea7 2072 return usage_data_rawdemod();
2073
2074 if (cmdp == 'f' && cmdp2 == 's')
f8f894a5 2075 ans = CmdFSKrawdemod(Cmd+2);
a0c7eea7 2076 else if(cmdp == 'a' && cmdp2 == 'b')
f8f894a5 2077 ans = Cmdaskbiphdemod(Cmd+2);
a0c7eea7 2078 else if(cmdp == 'a' && cmdp2 == 'm')
f8f894a5 2079 ans = Cmdaskmandemod(Cmd+2);
a0c7eea7 2080 else if(cmdp == 'a' && cmdp2 == 'r')
f8f894a5 2081 ans = Cmdaskrawdemod(Cmd+2);
a0c7eea7 2082 else if(cmdp == 'n' && cmdp2 == 'r')
f8f894a5 2083 ans = CmdNRZrawDemod(Cmd+2);
a0c7eea7 2084 else if(cmdp == 'p' && cmdp2 == '1')
f8f894a5 2085 ans = CmdPSK1rawDemod(Cmd+2);
a0c7eea7 2086 else if(cmdp == 'p' && cmdp2 == '2')
f8f894a5 2087 ans = CmdPSK2rawDemod(Cmd+2);
a0c7eea7 2088 else
19ff0210 2089 PrintAndLog("unknown modulation entered - see help ('h') for parameter structure");
a0c7eea7 2090
19ff0210 2091 return ans;
2092}
a0c7eea7 2093//iceman: diff sizes on the plotwindow?
7fe9b0b7 2094int CmdGrid(const char *Cmd)
2095{
e0165dcf 2096 sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY);
a0c7eea7 2097 PlotGridXdefault = PlotGridX;
2098 PlotGridYdefault = PlotGridY;
e0165dcf 2099 RepaintGraphWindow();
2100 return 0;
7fe9b0b7 2101}
4eabb8ad 2102void setGrid_Clock(uint8_t clock){
2103 PlotGridXdefault = clock;
2104 RepaintGraphWindow();
2105}
2106
a9eeb576 2107int CmdSetGraphMarkers(const char *Cmd) {
2108 sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos);
2109 RepaintGraphWindow();
2110 return 0;
2111}
7fe9b0b7 2112
2113int CmdHexsamples(const char *Cmd)
2114{
e0165dcf 2115 int i, j;
2116 int requested = 0;
2117 int offset = 0;
2118 char string_buf[25];
2119 char* string_ptr = string_buf;
2120 uint8_t got[BIGBUF_SIZE];
2121
2122 sscanf(Cmd, "%i %i", &requested, &offset);
2123
2124 /* if no args send something */
2125 if (requested == 0) {
2126 requested = 8;
2127 }
2128 if (offset + requested > sizeof(got)) {
2129 PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE);
2130 return 0;
2131 }
2132
2133 GetFromBigBuf(got,requested,offset);
2134 WaitForResponse(CMD_ACK,NULL);
2135
2136 i = 0;
2137 for (j = 0; j < requested; j++) {
2138 i++;
2139 string_ptr += sprintf(string_ptr, "%02x ", got[j]);
2140 if (i == 8) {
2141 *(string_ptr - 1) = '\0'; // remove the trailing space
2142 PrintAndLog("%s", string_buf);
2143 string_buf[0] = '\0';
2144 string_ptr = string_buf;
2145 i = 0;
2146 }
2147 if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes
2148 *(string_ptr - 1) = '\0';
2149 PrintAndLog("%s", string_buf);
2150 string_buf[0] = '\0';
2151 }
2152 }
2153 return 0;
7fe9b0b7 2154}
2155
7fe9b0b7 2156int CmdHide(const char *Cmd)
2157{
e0165dcf 2158 HideGraphWindow();
2159 return 0;
7fe9b0b7 2160}
2161
78f5b1a7 2162//zero mean GraphBuffer
7fe9b0b7 2163int CmdHpf(const char *Cmd)
2164{
e0165dcf 2165 int i;
2166 int accum = 0;
7fe9b0b7 2167
e0165dcf 2168 for (i = 10; i < GraphTraceLen; ++i)
2169 accum += GraphBuffer[i];
a0c7eea7 2170
e0165dcf 2171 accum /= (GraphTraceLen - 10);
a0c7eea7 2172
e0165dcf 2173 for (i = 0; i < GraphTraceLen; ++i)
2174 GraphBuffer[i] -= accum;
7fe9b0b7 2175
e0165dcf 2176 RepaintGraphWindow();
2177 return 0;
7fe9b0b7 2178}
f6d9fb17
MHS		 2179
2180bool _headBit( BitstreamOut *stream)
2181{
2182 int bytepos = stream->position >> 3; // divide by 8
2183 int bitpos = (stream->position++) & 7; // mask out 00000111
2184 return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
2185}
2186
2187uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
2188{
2189 int i;
2190 uint8_t val = 0;
a0c7eea7 2191 for(i = 0 ; i < bits_per_sample; i++)
f6d9fb17 2192 val |= (_headBit(b) << (7-i));
a0c7eea7 2193
f6d9fb17
MHS		 2194 return val;
2195}
7fe9b0b7 2196
1fbf8956 2197int getSamples(const char *Cmd, bool silent)
7fe9b0b7 2198{
e0165dcf 2199 //If we get all but the last byte in bigbuf,
2200 // we don't have to worry about remaining trash
2201 // in the last byte in case the bits-per-sample
2202 // does not line up on byte boundaries
2203
2204 uint8_t got[BIGBUF_SIZE-1] = { 0 };
2205
2206 int n = strtol(Cmd, NULL, 0);
2207
52f2df61 2208 if ( n == 0 || n > sizeof(got))
e0165dcf 2209 n = sizeof(got);
2210
eb911aa8 2211 if (!silent) PrintAndLog("Reading %d bytes from device memory\n", n);
e0165dcf 2212 GetFromBigBuf(got,n,0);
eb911aa8 2213 if (!silent) PrintAndLog("Data fetched");
e0165dcf 2214 UsbCommand response;
c188b1b9 2215 if ( !WaitForResponseTimeout(CMD_ACK, &response, 10000) ) {
2216 PrintAndLog("timeout while waiting for reply.");
2217 return 1;
2218 }
2219
e0165dcf 2220 uint8_t bits_per_sample = 8;
2221
2222 //Old devices without this feature would send 0 at arg[0]
a0c7eea7 2223 if (response.arg[0] > 0) {
e0165dcf 2224 sample_config *sc = (sample_config *) response.d.asBytes;
eb911aa8 2225 if (!silent) PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
e0165dcf 2226 bits_per_sample = sc->bits_per_sample;
2227 }
a0c7eea7 2228
2229 if (bits_per_sample < 8) {
eb911aa8 2230 if (!silent) PrintAndLog("Unpacking...");
e0165dcf 2231 BitstreamOut bout = { got, bits_per_sample * n, 0};
2232 int j =0;
e6432f05 2233 for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
e0165dcf 2234 uint8_t sample = getByte(bits_per_sample, &bout);
2235 GraphBuffer[j] = ((int) sample )- 128;
2236 }
2237 GraphTraceLen = j;
eb911aa8 2238 if (!silent) PrintAndLog("Unpacked %d samples" , j );
a0c7eea7 2239 } else {
e0165dcf 2240 for (int j = 0; j < n; j++) {
2241 GraphBuffer[j] = ((int)got[j]) - 128;
2242 }
2243 GraphTraceLen = n;
2244 }
2245
2246 RepaintGraphWindow();
2247 return 0;
1fbf8956 2248}
2249
2250int CmdSamples(const char *Cmd)
2251{
e0165dcf 2252 return getSamples(Cmd, false);
7fe9b0b7 2253}
2254
d6a120a2
MHS		 2255int CmdTuneSamples(const char *Cmd)
2256{
3aa4014b 2257 int timeout = 0;
2258 printf("\nMeasuring antenna characteristics, please wait...");
ba1a299c 2259
c188b1b9 2260 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {0,0,0}};
2261 clearCommandBuffer();
3aa4014b 2262 SendCommand(&c);
3aa4014b 2263 UsbCommand resp;
a0048c69 2264 while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING, &resp, 2000)) {
3aa4014b 2265 timeout++;
2266 printf(".");
81b7e894 2267 fflush(stdout);
3aa4014b 2268 if (timeout > 7) {
2269 PrintAndLog("\nNo response from Proxmark. Aborting...");
2270 return 1;
2271 }
2272 }
2273
bb522918 2274#define NON_VOLTAGE 999
2275#define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher.
2276#define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher.
2277#define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2278#define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher.
2279
3aa4014b 2280 int peakv, peakf;
2281 int vLf125, vLf134, vHf;
2282 vLf125 = resp.arg[0] & 0xffff;
2283 vLf134 = resp.arg[0] >> 16;
2284 vHf = resp.arg[1] & 0xffff;;
2285 peakf = resp.arg[2] & 0xffff;
2286 peakv = resp.arg[2] >> 16;
2287 PrintAndLog("");
bb522918 2288 if ( vLf125 > NON_VOLTAGE )
d801514d 2289 PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0);
bb522918 2290 if ( vLf134 > NON_VOLTAGE )
d801514d 2291 PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0);
efbf81da 2292 if ( peakv > NON_VOLTAGE && peakf > 0 )
d801514d 2293 PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
bb522918 2294 if ( vHf > NON_VOLTAGE )
d801514d 2295 PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0);
0d0d0499 2296
bb522918 2297
0d0d0499 2298
2299 if (peakv < LF_UNUSABLE_V)
3aa4014b 2300 PrintAndLog("# Your LF antenna is unusable.");
0d0d0499 2301 else if (peakv < LF_MARGINAL_V)
3aa4014b 2302 PrintAndLog("# Your LF antenna is marginal.");
0d0d0499 2303 if (vHf < HF_UNUSABLE_V)
3aa4014b 2304 PrintAndLog("# Your HF antenna is unusable.");
0d0d0499 2305 else if (vHf < HF_MARGINAL_V)
3aa4014b 2306 PrintAndLog("# Your HF antenna is marginal.");
2307
0d0d0499 2308 if (peakv >= LF_UNUSABLE_V) {
2309 for (int i = 0; i < 256; i++) {
2310 GraphBuffer[i] = resp.d.asBytes[i] - 128;
2311 }
2312 PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n");
2313 PrintAndLog("\n");
2314 GraphTraceLen = 256;
2315 ShowGraphWindow();
abd16c45 2316 RepaintGraphWindow();
ba1a299c 2317 }
b4fb11ba 2318 return 0;
d6a120a2
MHS		 2319}
2320
7fe9b0b7 2321int CmdLoad(const char *Cmd)
2322{
e0165dcf 2323 char filename[FILE_PATH_SIZE] = {0x00};
2324 int len = 0;
b915fda3 2325
e0165dcf 2326 len = strlen(Cmd);
2327 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2328 memcpy(filename, Cmd, len);
b915fda3 2329
e0165dcf 2330 FILE *f = fopen(filename, "r");
2331 if (!f) {
c188b1b9 2332 PrintAndLog("couldn't open '%s'", filename);
e0165dcf 2333 return 0;
2334 }
2335
2336 GraphTraceLen = 0;
2337 char line[80];
2338 while (fgets(line, sizeof (line), f)) {
2339 GraphBuffer[GraphTraceLen] = atoi(line);
2340 GraphTraceLen++;
2341 }
a38f5a07 2342 if (f)
2dcf60f3 2343 fclose(f);
a38f5a07 2344
e0165dcf 2345 PrintAndLog("loaded %d samples", GraphTraceLen);
2346 RepaintGraphWindow();
2347 return 0;
7fe9b0b7 2348}
2349
2350int CmdLtrim(const char *Cmd)
2351{
e0165dcf 2352 int ds = atoi(Cmd);
c188b1b9 2353
2354 if (GraphTraceLen <= 0) return 0;
2355
e0165dcf 2356 for (int i = ds; i < GraphTraceLen; ++i)
2357 GraphBuffer[i-ds] = GraphBuffer[i];
7fe9b0b7 2358
c188b1b9 2359 GraphTraceLen -= ds;
e0165dcf 2360 RepaintGraphWindow();
2361 return 0;
7fe9b0b7 2362}
ec75f5c1 2363
2364// trim graph to input argument length
9ec1416a 2365int CmdRtrim(const char *Cmd)
2366{
e0165dcf 2367 int ds = atoi(Cmd);
e0165dcf 2368 GraphTraceLen = ds;
e0165dcf 2369 RepaintGraphWindow();
2370 return 0;
9ec1416a 2371}
7fe9b0b7 2372
a9eeb576 2373// trim graph (middle) piece
2374int CmdMtrim(const char *Cmd) {
2375 int start = 0, stop = 0;
2376 sscanf(Cmd, "%i %i", &start, &stop);
2377
2378 if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0;
2379 start++; //leave start position sample
2380
2381 GraphTraceLen -= stop - start;
2382 for (int i = 0; i < GraphTraceLen; i++) {
2383 GraphBuffer[start+i] = GraphBuffer[stop+i];
2384 }
2385 return 0;
2386}
2387
2388
7fe9b0b7 2389int CmdNorm(const char *Cmd)
2390{
e0165dcf 2391 int i;
2392 int max = INT_MIN, min = INT_MAX;
7fe9b0b7 2393
e0165dcf 2394 for (i = 10; i < GraphTraceLen; ++i) {
a0c7eea7 2395 if (GraphBuffer[i] > max) max = GraphBuffer[i];
2396 if (GraphBuffer[i] < min) min = GraphBuffer[i];
e0165dcf 2397 }
7fe9b0b7 2398
e0165dcf 2399 if (max != min) {
2400 for (i = 0; i < GraphTraceLen; ++i) {
a0c7eea7 2401 GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / (max - min);
2402 //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work
e0165dcf 2403 }
2404 }
2405 RepaintGraphWindow();
2406 return 0;
7fe9b0b7 2407}
2408
2409int CmdPlot(const char *Cmd)
2410{
e0165dcf 2411 ShowGraphWindow();
2412 return 0;
7fe9b0b7 2413}
2414
2415int CmdSave(const char *Cmd)
2416{
e0165dcf 2417 char filename[FILE_PATH_SIZE] = {0x00};
2418 int len = 0;
b915fda3 2419
e0165dcf 2420 len = strlen(Cmd);
2421 if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
2422 memcpy(filename, Cmd, len);
2423
e0165dcf 2424 FILE *f = fopen(filename, "w");
2425 if(!f) {
2426 PrintAndLog("couldn't open '%s'", filename);
2427 return 0;
2428 }
c621ae06 2429
2430 for (int i = 0; i < GraphTraceLen; i++)
e0165dcf 2431 fprintf(f, "%d\n", GraphBuffer[i]);
c621ae06 2432
a38f5a07 2433 if (f)
2dcf60f3 2434 fclose(f);
a38f5a07 2435
e0165dcf 2436 PrintAndLog("saved to '%s'", Cmd);
2437 return 0;
7fe9b0b7 2438}
2439
2440int CmdScale(const char *Cmd)
2441{
e0165dcf 2442 CursorScaleFactor = atoi(Cmd);
2443 if (CursorScaleFactor == 0) {
2444 PrintAndLog("bad, can't have zero scale");
2445 CursorScaleFactor = 1;
2446 }
2447 RepaintGraphWindow();
2448 return 0;
7fe9b0b7 2449}
2450
d51b2eda
MHS		 2451int CmdDirectionalThreshold(const char *Cmd)
2452{
e0165dcf 2453 int8_t upThres = param_get8(Cmd, 0);
2454 int8_t downThres = param_get8(Cmd, 1);
2455
2456 printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres);
2457
2458 int lastValue = GraphBuffer[0];
2459 GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in.
2460
2461 for (int i = 1; i < GraphTraceLen; ++i) {
2462 // Apply first threshold to samples heading up
2463 if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue)
2464 {
2465 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2466 GraphBuffer[i] = 1;
2467 }
2468 // Apply second threshold to samples heading down
2469 else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue)
2470 {
2471 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2472 GraphBuffer[i] = -1;
2473 }
2474 else
2475 {
2476 lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it.
2477 GraphBuffer[i] = GraphBuffer[i-1];
e0165dcf 2478 }
2479 }
2480 GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample.
2481 RepaintGraphWindow();
2482 return 0;
d51b2eda
MHS		 2483}
2484
7fe9b0b7 2485int CmdZerocrossings(const char *Cmd)
2486{
e0165dcf 2487 // Zero-crossings aren't meaningful unless the signal is zero-mean.
2488 CmdHpf("");
2489
2490 int sign = 1;
2491 int zc = 0;
2492 int lastZc = 0;
2493
2494 for (int i = 0; i < GraphTraceLen; ++i) {
2495 if (GraphBuffer[i] * sign >= 0) {
2496 // No change in sign, reproduce the previous sample count.
2497 zc++;
2498 GraphBuffer[i] = lastZc;
2499 } else {
2500 // Change in sign, reset the sample count.
2501 sign = -sign;
2502 GraphBuffer[i] = lastZc;
2503 if (sign > 0) {
2504 lastZc = zc;
2505 zc = 0;
2506 }
2507 }
2508 }
2509
2510 RepaintGraphWindow();
2511 return 0;
7fe9b0b7 2512}
2513
0de8e387 2514/**
2515 * @brief Utility for conversion via cmdline.
2516 * @param Cmd
2517 * @return
2518 */
2519int Cmdbin2hex(const char *Cmd)
2520{
2521 int bg =0, en =0;
2522 if(param_getptr(Cmd, &bg, &en, 0))
0de8e387 2523 return usage_data_bin2hex();
a0c7eea7 2524
0de8e387 2525 //Number of digits supplied as argument
2526 size_t length = en - bg +1;
2527 size_t bytelen = (length+7) / 8;
2528 uint8_t* arr = (uint8_t *) malloc(bytelen);
2529 memset(arr, 0, bytelen);
2530 BitstreamOut bout = { arr, 0, 0 };
2531
a0c7eea7 2532 for (; bg <= en ;bg++) {
0de8e387 2533 char c = Cmd[bg];
2534 if( c == '1') pushBit(&bout, 1);
2535 else if( c == '0') pushBit(&bout, 0);
2536 else PrintAndLog("Ignoring '%c'", c);
2537 }
2538
a0c7eea7 2539 if (bout.numbits % 8 != 0)
0de8e387 2540 printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
0de8e387 2541
2542 //Uses printf instead of PrintAndLog since the latter
2543 // adds linebreaks to each printout - this way was more convenient since we don't have to
2544 // allocate a string and write to that first...
2545 for(size_t x = 0; x < bytelen ; x++)
0de8e387 2546 printf("%02X", arr[x]);
a0c7eea7 2547
0de8e387 2548 printf("\n");
2549 free(arr);
2550 return 0;
2551}
2552
0de8e387 2553int Cmdhex2bin(const char *Cmd)
2554{
2555 int bg =0, en =0;
f4d0ffd1 2556 if(param_getptr(Cmd, &bg, &en, 0)) return usage_data_hex2bin();
0de8e387 2557
a0c7eea7 2558 while (bg <= en ) {
0de8e387 2559 char x = Cmd[bg++];
2560 // capitalize
2561 if (x >= 'a' && x <= 'f')
2562 x -= 32;
2563 // convert to numeric value
2564 if (x >= '0' && x <= '9')
2565 x -= '0';
2566 else if (x >= 'A' && x <= 'F')
2567 x -= 'A' - 10;
2568 else
2569 continue;
2570
2571 //Uses printf instead of PrintAndLog since the latter
2572 // adds linebreaks to each printout - this way was more convenient since we don't have to
2573 // allocate a string and write to that first...
2574
2575 for(int i= 0 ; i < 4 ; ++i)
2576 printf("%d",(x >> (3 - i)) & 1);
2577 }
2578 printf("\n");
2579
2580 return 0;
2581}
2582
40f6f2ff 2583int CmdDataIIR(const char *Cmd){
4c543dbd 2584 uint8_t k = param_get8(Cmd,0);
2585 //iceIIR_Butterworth(GraphBuffer, GraphTraceLen);
2586 iceSimple_Filter(GraphBuffer, GraphTraceLen, k);
40f6f2ff 2587 RepaintGraphWindow();
2588 return 0;
2589}
2590
ba1a299c 2591static command_t CommandTable[] =
7fe9b0b7 2592{
e0165dcf 2593 {"help", CmdHelp, 1, "This help"},
a152dea7 2594 {"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 2595 {"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
2596 {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
70459879 2597 {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking AM tag from GraphBuffer"},
e0165dcf 2598 {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
fef74fdc 2599 {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
a152dea7 2600 {"bin2hex", Cmdbin2hex, 1, "<digits> -- Converts binary to hexadecimal"},
e0165dcf 2601 {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
c621ae06 2602 {"buffclear", CmdBuffClear, 1, "Clears bigbuff on deviceside. d graph window"},
e0165dcf 2603 {"dec", CmdDec, 1, "Decimate samples"},
a152dea7 2604 {"detectclock", CmdDetectClockRate, 1, "[<a|f|n|p>] Detect ASK, FSK, NRZ, PSK clock rate of wave in GraphBuffer"},
ad6219fc 2605 {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
e0165dcf 2606 {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
2607 //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
2608 {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
2609 {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"},
2610 {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
2611 {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
2612 {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
2613 {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
2614 {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
a152dea7 2615 {"hex2bin", Cmdhex2bin, 1, "<hexadecimal> -- Converts hexadecimal to binary"},
e0165dcf 2616 {"hide", CmdHide, 1, "Hide graph window"},
2617 {"hpf", CmdHpf, 1, "Remove DC offset from trace"},
2618 {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
2619 {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"},
2620 {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"},
a9eeb576 2621 {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"},
fef74fdc 2622 {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
e0165dcf 2623 {"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
2624 {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
bf32dd92 2625 {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
e0165dcf 2626 {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
411105e0 2627 {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
e0165dcf 2628 {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
2629 {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
2630 {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
a9eeb576 2631 {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"},
e0165dcf 2632 {"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
a126332a 2633 {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
e0165dcf 2634 {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
e0165dcf 2635 {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
2636 {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
2637 {"undec", CmdUndec, 1, "Un-decimate samples by 2"},
2638 {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"},
40f6f2ff 2639 {"iir", CmdDataIIR, 0, "apply IIR buttersworth filter on plotdata"},
e0165dcf 2640 {NULL, NULL, 0, NULL}
7fe9b0b7 2641};
2642
4c36581b 2643int CmdData(const char *Cmd){
2644 clearCommandBuffer();
e0165dcf 2645 CmdsParse(CommandTable, Cmd);
2646 return 0;
7fe9b0b7 2647}
2648
2649int CmdHelp(const char *Cmd)
2650{
e0165dcf 2651 CmdsHelp(CommandTable);
2652 return 0;
7fe9b0b7 2653}
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