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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 | ||
6923d3f1 | 11 | #include <stdio.h> // also included in util.h |
12 | #include <string.h> // also included in util.h | |
43534cba | 13 | #include <inttypes.h> |
6923d3f1 | 14 | #include <limits.h> // for CmdNorm INT_MIN && INT_MAX |
15 | #include "data.h" // also included in util.h | |
16 | #include "cmddata.h" | |
d51b2eda | 17 | #include "util.h" |
7fe9b0b7 | 18 | #include "cmdmain.h" |
6923d3f1 | 19 | #include "proxmark3.h" |
20 | #include "ui.h" // for show graph controls | |
21 | #include "graph.h" // for graph data | |
22 | #include "cmdparser.h"// already included in cmdmain.h | |
23 | #include "usb_cmd.h" // already included in cmdmain.h and proxmark3.h | |
24 | #include "lfdemod.h" // for demod code | |
25 | #include "crc.h" // for pyramid checksum maxim | |
26 | #include "crc16.h" // for FDXB demod checksum | |
27 | #include "loclass/cipherutils.h" // for decimating samples in getsamples | |
35aa230e | 28 | #include "cmdlfem4x.h"// for em410x demod |
31abe49f | 29 | |
4118b74d | 30 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; |
b362de62 | 31 | uint8_t g_debugMode=0; |
32 | size_t DemodBufferLen=0; | |
cb86f8d6 | 33 | //size_t g_demodStartIdx=0; |
34 | //uint8_t g_demodClock=0; | |
127f1490 | 35 | |
7fe9b0b7 | 36 | static int CmdHelp(const char *Cmd); |
37 | ||
4118b74d | 38 | //set the demod buffer with given array of binary (one bit per byte) |
39 | //by marshmellow | |
ec75f5c1 | 40 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) |
4118b74d | 41 | { |
13d77ef9 | 42 | if (buff == NULL) |
43 | return; | |
44 | ||
45 | if ( size >= MAX_DEMOD_BUF_LEN) | |
46 | size = MAX_DEMOD_BUF_LEN; | |
47 | ||
ec75f5c1 | 48 | size_t i = 0; |
8e2e6c8e | 49 | for (; i < size; i++){ |
ec75f5c1 | 50 | DemodBuffer[i]=buff[startIdx++]; |
ba1a299c | 51 | } |
52 | DemodBufferLen=size; | |
53 | return; | |
4118b74d | 54 | } |
55 | ||
ec75f5c1 | 56 | int CmdSetDebugMode(const char *Cmd) |
57 | { | |
e0165dcf | 58 | int demod=0; |
59 | sscanf(Cmd, "%i", &demod); | |
60 | g_debugMode=(uint8_t)demod; | |
61 | return 1; | |
ec75f5c1 | 62 | } |
63 | ||
979bba37 | 64 | int usage_data_printdemodbuf(){ |
ace26dbd | 65 | PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>"); |
979bba37 | 66 | PrintAndLog("Options: "); |
67 | PrintAndLog(" h This help"); | |
68 | PrintAndLog(" x output in hex (omit for binary output)"); | |
69 | PrintAndLog(" o <offset> enter offset in # of bits"); | |
ace26dbd | 70 | PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively"); |
979bba37 | 71 | return 0; |
72 | } | |
73 | ||
4118b74d | 74 | //by marshmellow |
abd6112f | 75 | void printDemodBuff(void) |
4118b74d | 76 | { |
ba1a299c | 77 | int bitLen = DemodBufferLen; |
2767fc02 | 78 | if (bitLen<1) { |
ba1a299c | 79 | PrintAndLog("no bits found in demod buffer"); |
80 | return; | |
81 | } | |
82 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
e0165dcf | 83 | |
2767fc02 | 84 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); |
85 | PrintAndLog("%s",bin); | |
86 | ||
ba1a299c | 87 | return; |
4118b74d | 88 | } |
89 | ||
8d960002 | 90 | int CmdPrintDemodBuff(const char *Cmd) |
91 | { | |
979bba37 | 92 | char hex[512]={0x00}; |
93 | bool hexMode = false; | |
94 | bool errors = false; | |
ace26dbd | 95 | uint32_t offset = 0; //could be size_t but no param_get16... |
96 | uint32_t length = 512; | |
979bba37 | 97 | char cmdp = 0; |
98 | while(param_getchar(Cmd, cmdp) != 0x00) | |
99 | { | |
100 | switch(param_getchar(Cmd, cmdp)) | |
101 | { | |
102 | case 'h': | |
103 | case 'H': | |
104 | return usage_data_printdemodbuf(); | |
105 | case 'x': | |
106 | case 'X': | |
107 | hexMode = true; | |
108 | cmdp++; | |
109 | break; | |
110 | case 'o': | |
111 | case 'O': | |
ace26dbd | 112 | offset = param_get32ex(Cmd, cmdp+1, 0, 10); |
979bba37 | 113 | if (!offset) errors = true; |
114 | cmdp += 2; | |
115 | break; | |
ace26dbd | 116 | case 'l': |
117 | case 'L': | |
118 | length = param_get32ex(Cmd, cmdp+1, 512, 10); | |
119 | if (!length) errors = true; | |
120 | cmdp += 2; | |
121 | break; | |
979bba37 | 122 | default: |
123 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
124 | errors = true; | |
125 | break; | |
126 | } | |
127 | if(errors) break; | |
e0165dcf | 128 | } |
979bba37 | 129 | //Validations |
130 | if(errors) return usage_data_printdemodbuf(); | |
ace26dbd | 131 | length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length; |
132 | int numBits = (length) & 0x00FFC; //make sure we don't exceed our string | |
979bba37 | 133 | |
134 | if (hexMode){ | |
185e038c | 135 | char *buf = (char *) (DemodBuffer + offset); |
ace26dbd | 136 | numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits; |
979bba37 | 137 | numBits = binarraytohex(hex, buf, numBits); |
e0165dcf | 138 | if (numBits==0) return 0; |
979bba37 | 139 | PrintAndLog("DemodBuffer: %s",hex); |
e0165dcf | 140 | } else { |
709665b5 | 141 | PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16)); |
e0165dcf | 142 | } |
143 | return 1; | |
8d960002 | 144 | } |
7fe9b0b7 | 145 | |
2767fc02 | 146 | //by marshmellow |
78f5b1a7 | 147 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer |
148 | int CmdGetBitStream(const char *Cmd) | |
149 | { | |
e0165dcf | 150 | int i; |
151 | CmdHpf(Cmd); | |
152 | for (i = 0; i < GraphTraceLen; i++) { | |
153 | if (GraphBuffer[i] >= 1) { | |
154 | GraphBuffer[i] = 1; | |
155 | } else { | |
156 | GraphBuffer[i] = 0; | |
157 | } | |
158 | } | |
159 | RepaintGraphWindow(); | |
160 | return 0; | |
78f5b1a7 | 161 | } |
162 | ||
fef74fdc | 163 | //by marshmellow |
164 | //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
165 | // (amp may not be needed anymore) | |
166 | //verbose will print results and demoding messages | |
167 | //emSearch will auto search for EM410x format in bitstream | |
168 | //askType switches decode: ask/raw = 0, ask/manchester = 1 | |
d1869c33 | 169 | int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) { |
e0165dcf | 170 | int invert=0; |
171 | int clk=0; | |
172 | int maxErr=100; | |
fef74fdc | 173 | int maxLen=0; |
01d0f8ae | 174 | uint8_t askamp = 0; |
fef74fdc | 175 | char amp = param_getchar(Cmd, 0); |
e0165dcf | 176 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
fef74fdc | 177 | sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &); |
ace26dbd | 178 | if (!maxLen) maxLen = BIGBUF_SIZE; |
e0165dcf | 179 | if (invert != 0 && invert != 1) { |
180 | PrintAndLog("Invalid argument: %s", Cmd); | |
181 | return 0; | |
182 | } | |
183 | if (clk==1){ | |
184 | invert=1; | |
185 | clk=0; | |
186 | } | |
187 | size_t BitLen = getFromGraphBuf(BitStream); | |
2767fc02 | 188 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); |
d1869c33 | 189 | if (BitLen < 255) return 0; |
190 | if (maxLen < BitLen && maxLen != 0) BitLen = maxLen; | |
191 | int foundclk = 0; | |
01d0f8ae | 192 | //amp before ST check |
193 | if (amp == 'a' || amp == 'A') { | |
194 | askAmp(BitStream, BitLen); | |
195 | } | |
d1869c33 | 196 | bool st = false; |
ab812dfa | 197 | size_t ststart = 0, stend = 0; |
198 | if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend); | |
d1869c33 | 199 | if (st) { |
200 | *stCheck = st; | |
201 | clk = (clk == 0) ? foundclk : clk; | |
ab812dfa | 202 | CursorCPos = ststart; |
203 | CursorDPos = stend; | |
f75b313b | 204 | if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers"); |
d1869c33 | 205 | } |
01d0f8ae | 206 | int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType); |
fef74fdc | 207 | if (errCnt<0 || BitLen<16){ //if fatal error (or -1) |
2767fc02 | 208 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); |
e0165dcf | 209 | return 0; |
210 | } | |
d1869c33 | 211 | if (errCnt > maxErr){ |
2767fc02 | 212 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); |
213 | return 0; | |
214 | } | |
215 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 216 | |
217 | //output | |
e0165dcf | 218 | setDemodBuf(BitStream,BitLen,0); |
fef74fdc | 219 | if (verbose || g_debugMode){ |
220 | if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
8e2e6c8e | 221 | if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk); |
222 | else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk); | |
fef74fdc | 223 | // Now output the bitstream to the scrollback by line of 16 bits |
224 | printDemodBuff(); | |
225 | ||
226 | } | |
227 | uint64_t lo = 0; | |
228 | uint32_t hi = 0; | |
e0165dcf | 229 | if (emSearch){ |
fef74fdc | 230 | AskEm410xDecode(true, &hi, &lo); |
e0165dcf | 231 | } |
232 | return 1; | |
eb191de6 | 233 | } |
d1869c33 | 234 | int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) { |
235 | bool st = false; | |
236 | return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st); | |
237 | } | |
eb191de6 | 238 | |
4ac906d1 | 239 | //by marshmellow |
fef74fdc | 240 | //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a' |
4ac906d1 | 241 | //attempts to demodulate ask while decoding manchester |
242 | //prints binary found and saves in graphbuffer for further commands | |
243 | int Cmdaskmandemod(const char *Cmd) | |
244 | { | |
e0165dcf | 245 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 246 | if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') { |
d1869c33 | 247 | PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]"); |
248 | PrintAndLog(" ['s'] optional, check for Sequence Terminator"); | |
fef74fdc | 249 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); |
250 | PrintAndLog(" <invert>, 1 to invert output"); | |
251 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
252 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
253 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
e0165dcf | 254 | PrintAndLog(""); |
255 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
256 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
257 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
258 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
259 | 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"); | |
260 | return 0; | |
261 | } | |
7cb8516c | 262 | bool st = true; |
d1869c33 | 263 | if (Cmd[0]=='s') |
7cb8516c | 264 | return ASKDemod_ext(Cmd++, true, true, 1, &st); |
d1869c33 | 265 | else if (Cmd[1] == 's') |
7cb8516c | 266 | return ASKDemod_ext(Cmd+=2, true, true, 1, &st); |
d1869c33 | 267 | else |
7cb8516c | 268 | return ASKDemod(Cmd, true, true, 1); |
4ac906d1 | 269 | } |
270 | ||
eb191de6 | 271 | //by marshmellow |
d5a72d2f | 272 | //manchester decode |
eb191de6 | 273 | //stricktly take 10 and 01 and convert to 0 and 1 |
274 | int Cmdmandecoderaw(const char *Cmd) | |
275 | { | |
e0165dcf | 276 | int i =0; |
277 | int errCnt=0; | |
278 | size_t size=0; | |
fef74fdc | 279 | int invert=0; |
6ac4cb27 | 280 | int maxErr = 20; |
e0165dcf | 281 | char cmdp = param_getchar(Cmd, 0); |
1f918317 | 282 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { |
fef74fdc | 283 | PrintAndLog("Usage: data manrawdecode [invert] [maxErr]"); |
e0165dcf | 284 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); |
285 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
fef74fdc | 286 | PrintAndLog(" [invert] invert output"); |
1f918317 | 287 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); |
e0165dcf | 288 | PrintAndLog(""); |
289 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
290 | return 0; | |
291 | } | |
292 | if (DemodBufferLen==0) return 0; | |
293 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
294 | int high=0,low=0; | |
295 | for (;i<DemodBufferLen;++i){ | |
296 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
297 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
298 | BitStream[i]=DemodBuffer[i]; | |
299 | } | |
1f918317 | 300 | if (high>7 || low <0 ){ |
2767fc02 | 301 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); |
e0165dcf | 302 | return 0; |
303 | } | |
1f918317 | 304 | |
fef74fdc | 305 | sscanf(Cmd, "%i %i", &invert, &maxErr); |
e0165dcf | 306 | size=i; |
127f1490 | 307 | uint8_t alignPos = 0; |
308 | errCnt=manrawdecode(BitStream, &size, invert, &alignPos); | |
e0165dcf | 309 | if (errCnt>=maxErr){ |
310 | PrintAndLog("Too many errors: %d",errCnt); | |
311 | return 0; | |
312 | } | |
313 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
2767fc02 | 314 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
e0165dcf | 315 | if (errCnt==0){ |
316 | uint64_t id = 0; | |
317 | uint32_t hi = 0; | |
318 | size_t idx=0; | |
319 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
320 | //need to adjust to set bitstream back to manchester encoded data | |
321 | //setDemodBuf(BitStream, size, idx); | |
322 | ||
323 | printEM410x(hi, id); | |
324 | } | |
325 | } | |
326 | return 1; | |
d5a72d2f | 327 | } |
328 | ||
329 | //by marshmellow | |
330 | //biphase decode | |
331 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
1e090a61 | 332 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit |
333 | // and "invert" default = 0 if 1 it will invert output | |
2767fc02 | 334 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] |
d5a72d2f | 335 | int CmdBiphaseDecodeRaw(const char *Cmd) |
336 | { | |
ba1a299c | 337 | size_t size=0; |
b41534d1 | 338 | int offset=0, invert=0, maxErr=20, errCnt=0; |
b4fb11ba | 339 | char cmdp = param_getchar(Cmd, 0); |
340 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
b41534d1 | 341 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); |
342 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
b4fb11ba | 343 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); |
e0165dcf | 344 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); |
b4fb11ba | 345 | PrintAndLog(""); |
346 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
347 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
b41534d1 | 348 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); |
b4fb11ba | 349 | PrintAndLog(""); |
350 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
351 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
352 | return 0; | |
353 | } | |
b41534d1 | 354 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); |
355 | if (DemodBufferLen==0){ | |
356 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
b4fb11ba | 357 | return 0; |
358 | } | |
b41534d1 | 359 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
360 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
361 | size = DemodBufferLen; | |
1e090a61 | 362 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); |
b41534d1 | 363 | if (errCnt<0){ |
364 | PrintAndLog("Error during decode:%d", errCnt); | |
365 | return 0; | |
366 | } | |
367 | if (errCnt>maxErr){ | |
b4fb11ba | 368 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); |
369 | return 0; | |
370 | } | |
b41534d1 | 371 | |
372 | if (errCnt>0){ | |
2767fc02 | 373 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); |
b41534d1 | 374 | } |
375 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
2767fc02 | 376 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); |
b41534d1 | 377 | |
378 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
b4fb11ba | 379 | return 1; |
eb191de6 | 380 | } |
381 | ||
b41534d1 | 382 | //by marshmellow |
383 | // - ASK Demod then Biphase decode GraphBuffer samples | |
384 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
385 | { | |
386 | //ask raw demod GraphBuffer first | |
c7d67212 | 387 | int offset=0, clk=0, invert=0, maxErr=0; |
388 | sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
b41534d1 | 389 | |
8e2e6c8e | 390 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; |
391 | size_t size = getFromGraphBuf(BitStream); | |
fd227f4e | 392 | //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer |
c7d67212 | 393 | int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); |
8e2e6c8e | 394 | if ( errCnt < 0 || errCnt > maxErr ) { |
395 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | //attempt to Biphase decode BitStream | |
400 | errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
b41534d1 | 401 | if (errCnt < 0){ |
402 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
403 | return 0; | |
404 | } | |
405 | if (errCnt > maxErr) { | |
406 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
407 | return 0; | |
408 | } | |
409 | //success set DemodBuffer and return | |
410 | setDemodBuf(BitStream, size, 0); | |
411 | if (g_debugMode || verbose){ | |
8e2e6c8e | 412 | PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt); |
b41534d1 | 413 | printDemodBuff(); |
414 | } | |
415 | return 1; | |
416 | } | |
417 | //by marshmellow - see ASKbiphaseDemod | |
418 | int Cmdaskbiphdemod(const char *Cmd) | |
419 | { | |
e0165dcf | 420 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 421 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { |
422 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>"); | |
e0165dcf | 423 | PrintAndLog(" [offset], offset to begin biphase, default=0"); |
424 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
425 | PrintAndLog(" <invert>, 1 to invert output"); | |
426 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 427 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); |
e0165dcf | 428 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
429 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
430 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
431 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
432 | PrintAndLog(""); | |
433 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
434 | PrintAndLog(""); | |
fef74fdc | 435 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); |
436 | PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified"); | |
437 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
438 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
439 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
440 | 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"); | |
441 | PrintAndLog(" : data rawdemod ab 0 64 1 0 0 a = demod an ask/biph tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 442 | return 0; |
443 | } | |
7cb8516c | 444 | return ASKbiphaseDemod(Cmd, true); |
b41534d1 | 445 | } |
446 | ||
127f1490 | 447 | //could be split to a gProxII file |
8d960002 | 448 | //by marshmellow |
449 | //attempts to demodulate and identify a G_Prox_II verex/chubb card | |
450 | //WARNING: if it fails during some points it will destroy the DemodBuffer data | |
451 | // but will leave the GraphBuffer intact. | |
452 | //if successful it will push askraw data back to demod buffer ready for emulation | |
453 | int CmdG_Prox_II_Demod(const char *Cmd) | |
454 | { | |
7cb8516c | 455 | if (!ASKbiphaseDemod(Cmd, false)){ |
88e85bde | 456 | if (g_debugMode) PrintAndLog("Error gProxII: ASKbiphaseDemod failed 1st try"); |
e0165dcf | 457 | return 0; |
458 | } | |
459 | size_t size = DemodBufferLen; | |
460 | //call lfdemod.c demod for gProxII | |
461 | int ans = gProxII_Demod(DemodBuffer, &size); | |
462 | if (ans < 0){ | |
463 | if (g_debugMode) PrintAndLog("Error gProxII_Demod"); | |
464 | return 0; | |
465 | } | |
88e85bde | 466 | //got a good demod of 96 bits |
31e8a4f2 | 467 | uint8_t ByteStream[8] = {0x00}; |
e0165dcf | 468 | uint8_t xorKey=0; |
88e85bde | 469 | size_t startIdx = ans + 6; //start after 6 bit preamble |
470 | ||
471 | uint8_t bits_no_spacer[90]; | |
472 | //so as to not mess with raw DemodBuffer copy to a new sample array | |
473 | memcpy(bits_no_spacer, DemodBuffer + startIdx, 90); | |
474 | // remove the 18 (90/5=18) parity bits (down to 72 bits (96-6-18=72)) | |
475 | size_t bitLen = removeParity(bits_no_spacer, 0, 5, 3, 90); //source, startloc, paritylen, ptype, length_to_run | |
476 | if (bitLen != 72) { | |
477 | if (g_debugMode) PrintAndLog("Error gProxII: spacer removal did not produce 72 bits: %u, start: %u", bitLen, startIdx); | |
478 | return 0; | |
e0165dcf | 479 | } |
88e85bde | 480 | // get key and then get all 8 bytes of payload decoded |
481 | xorKey = (uint8_t)bytebits_to_byteLSBF(bits_no_spacer, 8); | |
482 | for (size_t idx = 0; idx < 8; idx++) { | |
483 | ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey; | |
484 | if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]); | |
e0165dcf | 485 | } |
88e85bde | 486 | //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data |
e0165dcf | 487 | // |
488 | uint8_t fmtLen = ByteStream[0]>>2; | |
489 | uint32_t FC = 0; | |
490 | uint32_t Card = 0; | |
88e85bde | 491 | //get raw 96 bits to print |
e0165dcf | 492 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32); |
493 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
494 | uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32); | |
495 | ||
496 | if (fmtLen==36){ | |
497 | FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1); | |
498 | Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5); | |
88e85bde | 499 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card); |
e0165dcf | 500 | } else if(fmtLen==26){ |
501 | FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7); | |
502 | Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7); | |
88e85bde | 503 | PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card); |
e0165dcf | 504 | } else { |
d1869c33 | 505 | PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen); |
31e8a4f2 | 506 | PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8)); |
e0165dcf | 507 | } |
508 | PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3); | |
509 | setDemodBuf(DemodBuffer+ans, 96, 0); | |
510 | return 1; | |
8d960002 | 511 | } |
512 | ||
127f1490 | 513 | //could be moved to a viking file |
415274a7 | 514 | //by marshmellow |
515 | //see ASKDemod for what args are accepted | |
516 | int CmdVikingDemod(const char *Cmd) | |
517 | { | |
518 | if (!ASKDemod(Cmd, false, false, 1)) { | |
519 | if (g_debugMode) PrintAndLog("ASKDemod failed"); | |
520 | return 0; | |
521 | } | |
522 | size_t size = DemodBufferLen; | |
f6650679 | 523 | //call lfdemod.c demod for Viking |
415274a7 | 524 | int ans = VikingDemod_AM(DemodBuffer, &size); |
525 | if (ans < 0) { | |
14331320 | 526 | if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans); |
415274a7 | 527 | return 0; |
528 | } | |
529 | //got a good demod | |
530 | uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32); | |
531 | uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32); | |
532 | uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32); | |
709665b5 | 533 | uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8); |
d1869c33 | 534 | PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, (unsigned int) checksum); |
415274a7 | 535 | PrintAndLog("Raw: %08X%08X", raw1,raw2); |
536 | setDemodBuf(DemodBuffer+ans, 64, 0); | |
537 | return 1; | |
538 | } | |
539 | ||
fef74fdc | 540 | //by marshmellow - see ASKDemod |
4ac906d1 | 541 | int Cmdaskrawdemod(const char *Cmd) |
542 | { | |
e0165dcf | 543 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 544 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') { |
fef74fdc | 545 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]"); |
e0165dcf | 546 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); |
547 | PrintAndLog(" <invert>, 1 to invert output"); | |
548 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
fef74fdc | 549 | PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)"); |
e0165dcf | 550 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); |
551 | PrintAndLog(""); | |
fef74fdc | 552 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); |
553 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
554 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
555 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
556 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
557 | 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"); | |
558 | PrintAndLog(" : data rawdemod ar 64 1 0 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp"); | |
e0165dcf | 559 | return 0; |
560 | } | |
7cb8516c | 561 | return ASKDemod(Cmd, true, false, 0); |
4ac906d1 | 562 | } |
563 | ||
73d04bb4 | 564 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) |
7fe9b0b7 | 565 | { |
e0165dcf | 566 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; |
567 | size_t Correlation = 0; | |
568 | int maxSum = 0; | |
569 | int lastMax = 0; | |
570 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
571 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
572 | int sum = 0; | |
573 | for (int j = 0; j < window; ++j) { | |
574 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
575 | } | |
576 | CorrelBuffer[i] = sum; | |
577 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
578 | //another max | |
579 | Correlation = i-lastMax; | |
580 | lastMax = i; | |
581 | if (sum > maxSum) maxSum = sum; | |
582 | } else if (sum > maxSum){ | |
583 | maxSum=sum; | |
584 | lastMax = i; | |
585 | } | |
586 | } | |
587 | if (Correlation==0){ | |
588 | //try again with wider margin | |
589 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
590 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
591 | //another max | |
592 | Correlation = i-lastMax; | |
593 | lastMax = i; | |
594 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
595 | } | |
596 | } | |
597 | } | |
598 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
599 | ||
600 | if (SaveGrph){ | |
601 | GraphTraceLen = GraphTraceLen - window; | |
602 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
603 | RepaintGraphWindow(); | |
604 | } | |
605 | return Correlation; | |
73d04bb4 | 606 | } |
7fe9b0b7 | 607 | |
9f7bbd24 | 608 | int usage_data_autocorr(void) |
609 | { | |
e0165dcf | 610 | //print help |
611 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
612 | PrintAndLog("Options: "); | |
613 | PrintAndLog(" h This help"); | |
614 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
615 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
616 | return 0; | |
9f7bbd24 | 617 | } |
618 | ||
73d04bb4 | 619 | int CmdAutoCorr(const char *Cmd) |
620 | { | |
e0165dcf | 621 | char cmdp = param_getchar(Cmd, 0); |
622 | if (cmdp == 'h' || cmdp == 'H') | |
623 | return usage_data_autocorr(); | |
624 | int window = 4000; //set default | |
625 | char grph=0; | |
7cb8516c | 626 | bool updateGrph = false; |
e0165dcf | 627 | sscanf(Cmd, "%i %c", &window, &grph); |
628 | ||
629 | if (window >= GraphTraceLen) { | |
630 | PrintAndLog("window must be smaller than trace (%d samples)", | |
631 | GraphTraceLen); | |
632 | return 0; | |
633 | } | |
7cb8516c | 634 | if (grph == 'g') updateGrph=true; |
635 | return AutoCorrelate(window, updateGrph, true); | |
7fe9b0b7 | 636 | } |
637 | ||
638 | int CmdBitsamples(const char *Cmd) | |
639 | { | |
e0165dcf | 640 | int cnt = 0; |
641 | uint8_t got[12288]; | |
952a8bb5 | 642 | |
e0165dcf | 643 | GetFromBigBuf(got,sizeof(got),0); |
644 | WaitForResponse(CMD_ACK,NULL); | |
7fe9b0b7 | 645 | |
e0165dcf | 646 | for (int j = 0; j < sizeof(got); j++) { |
647 | for (int k = 0; k < 8; k++) { | |
648 | if(got[j] & (1 << (7 - k))) { | |
649 | GraphBuffer[cnt++] = 1; | |
650 | } else { | |
651 | GraphBuffer[cnt++] = 0; | |
652 | } | |
653 | } | |
654 | } | |
655 | GraphTraceLen = cnt; | |
656 | RepaintGraphWindow(); | |
657 | return 0; | |
7fe9b0b7 | 658 | } |
659 | ||
7fe9b0b7 | 660 | int CmdBuffClear(const char *Cmd) |
661 | { | |
e0165dcf | 662 | UsbCommand c = {CMD_BUFF_CLEAR}; |
663 | SendCommand(&c); | |
664 | ClearGraph(true); | |
665 | return 0; | |
7fe9b0b7 | 666 | } |
667 | ||
668 | int CmdDec(const char *Cmd) | |
669 | { | |
e0165dcf | 670 | for (int i = 0; i < (GraphTraceLen / 2); ++i) |
671 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
672 | GraphTraceLen /= 2; | |
673 | PrintAndLog("decimated by 2"); | |
674 | RepaintGraphWindow(); | |
675 | return 0; | |
7fe9b0b7 | 676 | } |
698b649e MHS |
677 | /** |
678 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
679 | * name until someone does an actual interpolation command, not just | |
680 | * blindly repeating samples | |
681 | * @param Cmd | |
682 | * @return | |
683 | */ | |
684 | int CmdUndec(const char *Cmd) | |
685 | { | |
c856ceae MHS |
686 | if(param_getchar(Cmd, 0) == 'h') |
687 | { | |
688 | PrintAndLog("Usage: data undec [factor]"); | |
689 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
690 | PrintAndLog("Options: "); | |
691 | PrintAndLog(" h This help"); | |
692 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
693 | PrintAndLog("Example: 'data undec 3'"); | |
694 | return 0; | |
695 | } | |
696 | ||
697 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
698b649e MHS |
698 | //We have memory, don't we? |
699 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
72c5877a | 700 | uint32_t g_index = 0, s_index = 0; |
701 | while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN) | |
698b649e | 702 | { |
c856ceae | 703 | int count = 0; |
72c5877a | 704 | for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++) |
c856ceae | 705 | swap[s_index+count] = GraphBuffer[g_index]; |
72c5877a | 706 | |
707 | s_index += count; | |
708 | g_index++; | |
698b649e | 709 | } |
698b649e | 710 | |
72c5877a | 711 | memcpy(GraphBuffer, swap, s_index * sizeof(int)); |
c856ceae MHS |
712 | GraphTraceLen = s_index; |
713 | RepaintGraphWindow(); | |
698b649e MHS |
714 | return 0; |
715 | } | |
7fe9b0b7 | 716 | |
ec75f5c1 | 717 | //by marshmellow |
718 | //shift graph zero up or down based on input + or - | |
719 | int CmdGraphShiftZero(const char *Cmd) | |
720 | { | |
721 | ||
e0165dcf | 722 | int shift=0; |
723 | //set options from parameters entered with the command | |
724 | sscanf(Cmd, "%i", &shift); | |
725 | int shiftedVal=0; | |
726 | for(int i = 0; i<GraphTraceLen; i++){ | |
727 | shiftedVal=GraphBuffer[i]+shift; | |
728 | if (shiftedVal>127) | |
729 | shiftedVal=127; | |
730 | else if (shiftedVal<-127) | |
731 | shiftedVal=-127; | |
732 | GraphBuffer[i]= shiftedVal; | |
733 | } | |
734 | CmdNorm(""); | |
735 | return 0; | |
ec75f5c1 | 736 | } |
737 | ||
6de43508 | 738 | //by marshmellow |
739 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
2767fc02 | 740 | //similar to dirtheshold, threshold commands |
6de43508 | 741 | //takes a threshold length which is the measured length between two samples then determines an edge |
742 | int CmdAskEdgeDetect(const char *Cmd) | |
743 | { | |
e0165dcf | 744 | int thresLen = 25; |
de53156e | 745 | int Last = 0; |
e0165dcf | 746 | sscanf(Cmd, "%i", &thresLen); |
49bbc60a | 747 | |
e0165dcf | 748 | for(int i = 1; i<GraphTraceLen; i++){ |
749 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
de53156e | 750 | Last = 127; |
e0165dcf | 751 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down |
de53156e | 752 | Last = -127; |
753 | GraphBuffer[i-1] = Last; | |
e0165dcf | 754 | } |
755 | RepaintGraphWindow(); | |
e0165dcf | 756 | return 0; |
6de43508 | 757 | } |
758 | ||
7fe9b0b7 | 759 | /* Print our clock rate */ |
ba1a299c | 760 | // uses data from graphbuffer |
f3bf15e4 | 761 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. |
7fe9b0b7 | 762 | int CmdDetectClockRate(const char *Cmd) |
763 | { | |
f3bf15e4 | 764 | char cmdp = param_getchar(Cmd, 0); |
fef74fdc | 765 | if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { |
766 | PrintAndLog("Usage: data detectclock [modulation] <clock>"); | |
f3bf15e4 | 767 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); |
fef74fdc | 768 | PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)"); |
f3bf15e4 | 769 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); |
770 | PrintAndLog(""); | |
771 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
772 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
773 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
774 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
775 | } | |
776 | int ans=0; | |
777 | if (cmdp == 'a'){ | |
fef74fdc | 778 | ans = GetAskClock(Cmd+1, true, false); |
f3bf15e4 | 779 | } else if (cmdp == 'f'){ |
780 | ans = GetFskClock("", true, false); | |
781 | } else if (cmdp == 'n'){ | |
782 | ans = GetNrzClock("", true, false); | |
783 | } else if (cmdp == 'p'){ | |
784 | ans = GetPskClock("", true, false); | |
785 | } else { | |
786 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
787 | } | |
788 | return ans; | |
7fe9b0b7 | 789 | } |
66707a3b | 790 | |
2767fc02 | 791 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) |
792 | { | |
0c50084a | 793 | static char fType[8]; |
9e4cee22 | 794 | memset(fType, 0x00, 8); |
0c50084a | 795 | char *fskType = fType; |
2767fc02 | 796 | if (fchigh==10 && fclow==8){ |
797 | if (invert) //fsk2a | |
38b35095 | 798 | memcpy(fskType, "FSK2a", 5); |
2767fc02 | 799 | else //fsk2 |
38b35095 | 800 | memcpy(fskType, "FSK2", 4); |
2767fc02 | 801 | } else if (fchigh == 8 && fclow == 5) { |
802 | if (invert) | |
38b35095 | 803 | memcpy(fskType, "FSK1", 4); |
2767fc02 | 804 | else |
38b35095 | 805 | memcpy(fskType, "FSK1a", 5); |
2767fc02 | 806 | } else { |
38b35095 | 807 | memcpy(fskType, "FSK??", 5); |
2767fc02 | 808 | } |
809 | return fskType; | |
810 | } | |
811 | ||
2fc2150e | 812 | //by marshmellow |
eb191de6 | 813 | //fsk raw demod and print binary |
6de43508 | 814 | //takes 4 arguments - Clock, invert, fchigh, fclow |
815 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
4ac906d1 | 816 | int FSKrawDemod(const char *Cmd, bool verbose) |
b3b70669 | 817 | { |
e0165dcf | 818 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
506672c4 | 819 | uint8_t rfLen, invert, fchigh, fclow; |
506672c4 | 820 | //set defaults |
e0165dcf | 821 | //set options from parameters entered with the command |
6ca1477c | 822 | rfLen = param_get8(Cmd, 0); |
823 | invert = param_get8(Cmd, 1); | |
824 | fchigh = param_get8(Cmd, 2); | |
825 | fclow = param_get8(Cmd, 3); | |
d1869c33 | 826 | |
e0165dcf | 827 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { |
a0cc89b4 | 828 | if (rfLen==1) { |
2eec55c8 | 829 | invert = 1; //if invert option only is used |
e0165dcf | 830 | rfLen = 0; |
a0cc89b4 | 831 | } |
e0165dcf | 832 | } |
e0165dcf | 833 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
834 | size_t BitLen = getFromGraphBuf(BitStream); | |
835 | if (BitLen==0) return 0; | |
836 | //get field clock lengths | |
a0cc89b4 | 837 | uint16_t fcs=0; |
506672c4 | 838 | if (!fchigh || !fclow) { |
a0cc89b4 | 839 | fcs = countFC(BitStream, BitLen, 1); |
840 | if (!fcs) { | |
841 | fchigh = 10; | |
842 | fclow = 8; | |
843 | } else { | |
844 | fchigh = (fcs >> 8) & 0x00FF; | |
845 | fclow = fcs & 0x00FF; | |
e0165dcf | 846 | } |
847 | } | |
848 | //get bit clock length | |
a0cc89b4 | 849 | if (!rfLen) { |
e0165dcf | 850 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); |
506672c4 | 851 | if (!rfLen) rfLen = 50; |
e0165dcf | 852 | } |
506672c4 | 853 | int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow); |
a0cc89b4 | 854 | if (size > 0) { |
e0165dcf | 855 | setDemodBuf(BitStream,size,0); |
856 | ||
857 | // Now output the bitstream to the scrollback by line of 16 bits | |
2767fc02 | 858 | if (verbose || g_debugMode) { |
a0cc89b4 | 859 | PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow); |
2767fc02 | 860 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); |
861 | printDemodBuff(); | |
e0165dcf | 862 | } |
d1869c33 | 863 | |
e0165dcf | 864 | return 1; |
506672c4 | 865 | } else { |
2767fc02 | 866 | if (g_debugMode) PrintAndLog("no FSK data found"); |
e0165dcf | 867 | } |
868 | return 0; | |
b3b70669 | 869 | } |
870 | ||
4ac906d1 | 871 | //by marshmellow |
872 | //fsk raw demod and print binary | |
873 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
874 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
875 | int CmdFSKrawdemod(const char *Cmd) | |
876 | { | |
e0165dcf | 877 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 878 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 879 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); |
880 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
881 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
882 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
883 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
884 | PrintAndLog(""); | |
885 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
886 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
887 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
888 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
889 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
890 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
891 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
892 | return 0; | |
893 | } | |
7cb8516c | 894 | return FSKrawDemod(Cmd, true); |
4ac906d1 | 895 | } |
896 | ||
04d2721b | 897 | //by marshmellow |
898 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 899 | //print full Paradox Prox ID and some bit format details if found |
900 | int CmdFSKdemodParadox(const char *Cmd) | |
901 | { | |
e0165dcf | 902 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
903 | uint32_t hi2=0, hi=0, lo=0; | |
904 | ||
905 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
906 | size_t BitLen = getFromGraphBuf(BitStream); | |
907 | if (BitLen==0) return 0; | |
908 | //get binary from fsk wave | |
909 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
910 | if (idx<0){ | |
911 | if (g_debugMode){ | |
912 | if (idx==-1){ | |
913 | PrintAndLog("DEBUG: Just Noise Detected"); | |
914 | } else if (idx == -2) { | |
915 | PrintAndLog("DEBUG: Error demoding fsk"); | |
916 | } else if (idx == -3) { | |
917 | PrintAndLog("DEBUG: Preamble not found"); | |
918 | } else if (idx == -4) { | |
919 | PrintAndLog("DEBUG: Error in Manchester data"); | |
920 | } else { | |
921 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
922 | } | |
923 | } | |
924 | return 0; | |
925 | } | |
926 | if (hi2==0 && hi==0 && lo==0){ | |
927 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
928 | return 0; | |
929 | } | |
930 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
931 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
932 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
933 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
934 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
935 | ||
936 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", | |
937 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
938 | setDemodBuf(BitStream,BitLen,idx); | |
939 | if (g_debugMode){ | |
940 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
941 | printDemodBuff(); | |
942 | } | |
943 | return 1; | |
b3b70669 | 944 | } |
945 | ||
b2c330b3 | 946 | // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits) |
04bb0567 | 947 | // 8 databits + 1 parity (1) |
948 | // CIITT 16 chksum | |
949 | // NATIONAL CODE, ICAR database | |
b2c330b3 | 950 | // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf |
04bb0567 | 951 | // FLAG (animal/non-animal) |
709665b5 | 952 | /* |
953 | 38 IDbits | |
954 | 10 country code | |
955 | 1 extra app bit | |
956 | 14 reserved bits | |
957 | 1 animal bit | |
958 | 16 ccitt CRC chksum over 64bit ID CODE. | |
959 | 24 appli bits. | |
960 | ||
961 | -- sample: 985121004515220 [ 37FF65B88EF94 ] | |
962 | */ | |
b2c330b3 | 963 | int CmdFDXBdemodBI(const char *Cmd){ |
04bb0567 | 964 | |
965 | int invert = 1; | |
966 | int clk = 32; | |
967 | int errCnt = 0; | |
968 | int maxErr = 0; | |
969 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
970 | size_t size = getFromGraphBuf(BitStream); | |
971 | ||
972 | errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); | |
973 | if ( errCnt < 0 || errCnt > maxErr ) { | |
c2c7f6c2 | 974 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); |
04bb0567 | 975 | return 0; |
976 | } | |
977 | ||
978 | errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1); | |
979 | if (errCnt < 0 || errCnt > maxErr ) { | |
980 | if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
981 | return 0; | |
982 | } | |
983 | ||
b2c330b3 | 984 | int preambleIndex = FDXBdemodBI(BitStream, &size); |
04bb0567 | 985 | if (preambleIndex < 0){ |
b2c330b3 | 986 | if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex); |
04bb0567 | 987 | return 0; |
988 | } | |
f6650679 | 989 | if (size != 128) { |
990 | if (g_debugMode) PrintAndLog("Error incorrect data length found"); | |
991 | return 0; | |
992 | } | |
04bb0567 | 993 | |
994 | setDemodBuf(BitStream, 128, preambleIndex); | |
04bb0567 | 995 | |
29b6cacc | 996 | // remove marker bits (1's every 9th digit after preamble) (pType = 2) |
fd1d30cb | 997 | size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117); |
29b6cacc | 998 | if ( size != 104 ) { |
04bb0567 | 999 | if (g_debugMode) PrintAndLog("Error removeParity:: %d", size); |
1000 | return 0; | |
1001 | } | |
b2c330b3 | 1002 | if (g_debugMode) { |
1003 | char *bin = sprint_bin_break(BitStream,size,16); | |
1004 | PrintAndLog("DEBUG BinStream:\n%s",bin); | |
1005 | } | |
1006 | PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:"); | |
6eaa8da9 | 1007 | if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size); |
04bb0567 | 1008 | |
04bb0567 | 1009 | //got a good demod |
b2c330b3 | 1010 | uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32); |
04bb0567 | 1011 | uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10); |
1012 | uint8_t dataBlockBit = BitStream[48]; | |
1013 | uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14); | |
1014 | uint8_t animalBit = BitStream[63]; | |
1015 | uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16); | |
1016 | uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24); | |
1017 | ||
07b5a3c3 | 1018 | uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32); |
6eaa8da9 | 1019 | uint8_t raw[8]; |
1020 | num_to_bytes(rawid, 8, raw); | |
6eaa8da9 | 1021 | |
07b5a3c3 | 1022 | if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8)); |
6eaa8da9 | 1023 | |
07b5a3c3 | 1024 | uint16_t calcCrc = crc16_ccitt_kermit(raw, 8); |
43534cba | 1025 | PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode); |
1026 | PrintAndLog("National Code: %012" PRIu64, NationalCode); | |
c2c7f6c2 | 1027 | PrintAndLog("CountryCode: %04u", countryCode); |
b2c330b3 | 1028 | PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False"); |
1029 | PrintAndLog("reserved Code: %u", reservedCode); | |
1030 | PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False"); | |
6eaa8da9 | 1031 | PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed"); |
1032 | PrintAndLog("Extended: 0x%X\n", extended); | |
fd1d30cb | 1033 | |
04bb0567 | 1034 | return 1; |
1035 | } | |
1036 | ||
1037 | ||
e770c648 | 1038 | //by marshmellow |
1039 | //attempt to psk1 demod graph buffer | |
4ac906d1 | 1040 | int PSKDemod(const char *Cmd, bool verbose) |
e770c648 | 1041 | { |
e0165dcf | 1042 | int invert=0; |
1043 | int clk=0; | |
1044 | int maxErr=100; | |
1045 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1046 | if (clk==1){ | |
1047 | invert=1; | |
1048 | clk=0; | |
1049 | } | |
1050 | if (invert != 0 && invert != 1) { | |
2ec87733 | 1051 | if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd); |
e0165dcf | 1052 | return 0; |
1053 | } | |
1054 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1055 | size_t BitLen = getFromGraphBuf(BitStream); | |
2ec87733 | 1056 | if (BitLen==0) return 0; |
2eec55c8 | 1057 | uint8_t carrier=countFC(BitStream, BitLen, 0); |
e0165dcf | 1058 | if (carrier!=2 && carrier!=4 && carrier!=8){ |
1059 | //invalid carrier | |
1060 | return 0; | |
1061 | } | |
6fe5c94b | 1062 | if (g_debugMode){ |
1063 | PrintAndLog("Carrier: rf/%d",carrier); | |
1064 | } | |
e0165dcf | 1065 | int errCnt=0; |
1066 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
1067 | if (errCnt > maxErr){ | |
2767fc02 | 1068 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1069 | return 0; |
1070 | } | |
1071 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
2767fc02 | 1072 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1073 | return 0; |
1074 | } | |
2767fc02 | 1075 | if (verbose || g_debugMode){ |
1076 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 1077 | if (errCnt>0){ |
2767fc02 | 1078 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1079 | } |
1080 | } | |
1081 | //prime demod buffer for output | |
1082 | setDemodBuf(BitStream,BitLen,0); | |
1083 | return 1; | |
4118b74d | 1084 | } |
e770c648 | 1085 | |
4118b74d | 1086 | // Indala 26 bit decode |
1087 | // by marshmellow | |
1088 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1089 | int CmdIndalaDecode(const char *Cmd) | |
1090 | { | |
b4fb11ba | 1091 | int ans; |
1092 | if (strlen(Cmd)>0){ | |
1093 | ans = PSKDemod(Cmd, 0); | |
1094 | } else{ //default to RF/32 | |
1095 | ans = PSKDemod("32", 0); | |
1096 | } | |
4118b74d | 1097 | |
7a8a982b | 1098 | if (!ans){ |
6923d3f1 | 1099 | if (g_debugMode) |
b4fb11ba | 1100 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1101 | return 0; |
1102 | } | |
1103 | uint8_t invert=0; | |
14331320 | 1104 | size_t size = DemodBufferLen; |
6923d3f1 | 1105 | int startIdx = indala26decode(DemodBuffer, &size, &invert); |
1106 | if (startIdx < 0 || size > 224) { | |
1107 | if (g_debugMode) | |
b4fb11ba | 1108 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1109 | return -1; |
1110 | } | |
6923d3f1 | 1111 | setDemodBuf(DemodBuffer, size, (size_t)startIdx); |
84871873 | 1112 | if (invert) |
6923d3f1 | 1113 | if (g_debugMode) |
e0165dcf | 1114 | PrintAndLog("Had to invert bits"); |
ec75f5c1 | 1115 | |
14331320 | 1116 | PrintAndLog("BitLen: %d",DemodBufferLen); |
ba1a299c | 1117 | //convert UID to HEX |
1118 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
14331320 | 1119 | uid1=bytebits_to_byte(DemodBuffer,32); |
1120 | uid2=bytebits_to_byte(DemodBuffer+32,32); | |
1121 | if (DemodBufferLen==64) { | |
709665b5 | 1122 | PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2); |
14331320 | 1123 | } else { |
1124 | uid3=bytebits_to_byte(DemodBuffer+64,32); | |
1125 | uid4=bytebits_to_byte(DemodBuffer+96,32); | |
1126 | uid5=bytebits_to_byte(DemodBuffer+128,32); | |
1127 | uid6=bytebits_to_byte(DemodBuffer+160,32); | |
1128 | uid7=bytebits_to_byte(DemodBuffer+192,32); | |
1129 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", | |
709665b5 | 1130 | sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7); |
ba1a299c | 1131 | } |
b4fb11ba | 1132 | if (g_debugMode){ |
1133 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1134 | printDemodBuff(); | |
1135 | } | |
ba1a299c | 1136 | return 1; |
4118b74d | 1137 | } |
1138 | ||
411105e0 | 1139 | int CmdPSKNexWatch(const char *Cmd) |
1140 | { | |
1141 | if (!PSKDemod("", false)) return 0; | |
1142 | 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}; | |
1143 | size_t startIdx = 0, size = DemodBufferLen; | |
1144 | bool invert = false; | |
1145 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){ | |
1146 | // if didn't find preamble try again inverting | |
1147 | if (!PSKDemod("1", false)) return 0; | |
1148 | size = DemodBufferLen; | |
1149 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0; | |
1150 | invert = true; | |
1151 | } | |
1152 | if (size != 128) return 0; | |
1153 | setDemodBuf(DemodBuffer, size, startIdx+4); | |
1154 | startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0) | |
1155 | //get ID | |
1156 | uint32_t ID = 0; | |
1157 | for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){ | |
1158 | for (uint8_t idx=0; idx<8; idx++){ | |
1159 | ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)]; | |
1160 | } | |
1161 | } | |
1162 | //parity check (TBD) | |
1163 | ||
1164 | //checksum check (TBD) | |
1165 | ||
1166 | //output | |
1167 | PrintAndLog("NexWatch ID: %d", ID); | |
1168 | if (invert){ | |
1169 | PrintAndLog("Had to Invert - probably NexKey"); | |
1170 | for (uint8_t idx=0; idx<size; idx++) | |
1171 | DemodBuffer[idx] ^= 1; | |
1172 | } | |
1173 | ||
1174 | CmdPrintDemodBuff("x"); | |
1175 | return 1; | |
1176 | } | |
1177 | ||
04d2721b | 1178 | // by marshmellow |
e770c648 | 1179 | // takes 3 arguments - clock, invert, maxErr as integers |
1180 | // attempts to demodulate nrz only | |
1181 | // prints binary found and saves in demodbuffer for further commands | |
b4a2fcf6 | 1182 | int NRZrawDemod(const char *Cmd, bool verbose) |
e770c648 | 1183 | { |
e0165dcf | 1184 | int invert=0; |
1185 | int clk=0; | |
1186 | int maxErr=100; | |
1187 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1188 | if (clk==1){ | |
1189 | invert=1; | |
1190 | clk=0; | |
1191 | } | |
1192 | if (invert != 0 && invert != 1) { | |
1193 | PrintAndLog("Invalid argument: %s", Cmd); | |
1194 | return 0; | |
1195 | } | |
1196 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1197 | size_t BitLen = getFromGraphBuf(BitStream); | |
1198 | if (BitLen==0) return 0; | |
1199 | int errCnt=0; | |
6f36848f | 1200 | int clkStartIdx = 0; |
1201 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, &clkStartIdx); | |
e0165dcf | 1202 | if (errCnt > maxErr){ |
1203 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1204 | return 0; | |
1205 | } | |
2eec55c8 | 1206 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
e0165dcf | 1207 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
1208 | return 0; | |
1209 | } | |
1210 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1211 | //prime demod buffer for output | |
1212 | setDemodBuf(BitStream,BitLen,0); | |
1213 | ||
2767fc02 | 1214 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1215 | if (verbose || g_debugMode) { |
1216 | PrintAndLog("NRZ demoded bitstream:"); | |
1217 | // Now output the bitstream to the scrollback by line of 16 bits | |
1218 | printDemodBuff(); | |
1219 | } | |
1220 | return 1; | |
b4a2fcf6 | 1221 | } |
1222 | ||
1223 | int CmdNRZrawDemod(const char *Cmd) | |
1224 | { | |
e0165dcf | 1225 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 1226 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1227 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); |
1228 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1229 | PrintAndLog(" <invert>, 1 for invert output"); | |
1230 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1231 | PrintAndLog(""); | |
1232 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
1233 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1234 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1235 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1236 | 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"); | |
1237 | return 0; | |
1238 | } | |
7cb8516c | 1239 | return NRZrawDemod(Cmd, true); |
e770c648 | 1240 | } |
1241 | ||
1242 | // by marshmellow | |
1243 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 1244 | // attempts to demodulate psk only |
1245 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1246 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1247 | { |
e0165dcf | 1248 | int ans; |
1249 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 1250 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1251 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); |
1252 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1253 | PrintAndLog(" <invert>, 1 for invert output"); | |
1254 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1255 | PrintAndLog(""); | |
1256 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
1257 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1258 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1259 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1260 | 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"); | |
1261 | return 0; | |
1262 | } | |
7cb8516c | 1263 | ans = PSKDemod(Cmd, true); |
e0165dcf | 1264 | //output |
1265 | if (!ans){ | |
1266 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1267 | return 0; | |
1268 | } | |
7a8a982b | 1269 | |
2767fc02 | 1270 | PrintAndLog("PSK1 demoded bitstream:"); |
e0165dcf | 1271 | // Now output the bitstream to the scrollback by line of 16 bits |
1272 | printDemodBuff(); | |
1273 | return 1; | |
4118b74d | 1274 | } |
1275 | ||
04d2721b | 1276 | // by marshmellow |
19ff0210 | 1277 | // takes same args as cmdpsk1rawdemod |
04d2721b | 1278 | int CmdPSK2rawDemod(const char *Cmd) |
1279 | { | |
e0165dcf | 1280 | int ans=0; |
1281 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 1282 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1283 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); |
1284 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1285 | PrintAndLog(" <invert>, 1 for invert output"); | |
1286 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1287 | PrintAndLog(""); | |
1288 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1289 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1290 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1291 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1292 | 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"); | |
1293 | return 0; | |
1294 | } | |
7cb8516c | 1295 | ans=PSKDemod(Cmd, true); |
e0165dcf | 1296 | if (!ans){ |
1297 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1298 | return 0; | |
1299 | } | |
1300 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1301 | PrintAndLog("PSK2 demoded bitstream:"); | |
1302 | // Now output the bitstream to the scrollback by line of 16 bits | |
1303 | printDemodBuff(); | |
1304 | return 1; | |
04d2721b | 1305 | } |
1306 | ||
19ff0210 | 1307 | // by marshmellow - combines all raw demod functions into one menu command |
1308 | int CmdRawDemod(const char *Cmd) | |
1309 | { | |
1310 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1311 | ||
01d0f8ae | 1312 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { |
19ff0210 | 1313 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); |
b41534d1 | 1314 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
1315 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 1316 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
1317 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1318 | PrintAndLog(""); | |
1fbf8956 | 1319 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); |
19ff0210 | 1320 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); |
b41534d1 | 1321 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 1322 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
1323 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1324 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1325 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1326 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1327 | return 0; | |
1328 | } | |
1329 | char cmdp2 = Cmd[1]; | |
1330 | int ans = 0; | |
1331 | if (cmdp == 'f' && cmdp2 == 's'){ | |
f8f894a5 | 1332 | ans = CmdFSKrawdemod(Cmd+2); |
b41534d1 | 1333 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
f8f894a5 | 1334 | ans = Cmdaskbiphdemod(Cmd+2); |
19ff0210 | 1335 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
f8f894a5 | 1336 | ans = Cmdaskmandemod(Cmd+2); |
19ff0210 | 1337 | } else if(cmdp == 'a' && cmdp2 == 'r'){ |
f8f894a5 | 1338 | ans = Cmdaskrawdemod(Cmd+2); |
19ff0210 | 1339 | } else if(cmdp == 'n' && cmdp2 == 'r'){ |
f8f894a5 | 1340 | ans = CmdNRZrawDemod(Cmd+2); |
19ff0210 | 1341 | } else if(cmdp == 'p' && cmdp2 == '1'){ |
f8f894a5 | 1342 | ans = CmdPSK1rawDemod(Cmd+2); |
19ff0210 | 1343 | } else if(cmdp == 'p' && cmdp2 == '2'){ |
f8f894a5 | 1344 | ans = CmdPSK2rawDemod(Cmd+2); |
19ff0210 | 1345 | } else { |
1346 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1347 | } | |
1348 | return ans; | |
1349 | } | |
1350 | ||
7fe9b0b7 | 1351 | int CmdGrid(const char *Cmd) |
1352 | { | |
e0165dcf | 1353 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); |
1354 | PlotGridXdefault= PlotGridX; | |
1355 | PlotGridYdefault= PlotGridY; | |
1356 | RepaintGraphWindow(); | |
1357 | return 0; | |
7fe9b0b7 | 1358 | } |
1359 | ||
f9f0e83b | 1360 | int CmdSetGraphMarkers(const char *Cmd) { |
1361 | sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos); | |
1362 | RepaintGraphWindow(); | |
1363 | return 0; | |
1364 | } | |
1365 | ||
7fe9b0b7 | 1366 | int CmdHexsamples(const char *Cmd) |
1367 | { | |
e0165dcf | 1368 | int i, j; |
1369 | int requested = 0; | |
1370 | int offset = 0; | |
1371 | char string_buf[25]; | |
1372 | char* string_ptr = string_buf; | |
1373 | uint8_t got[BIGBUF_SIZE]; | |
1374 | ||
1375 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1376 | ||
1377 | /* if no args send something */ | |
1378 | if (requested == 0) { | |
1379 | requested = 8; | |
1380 | } | |
1381 | if (offset + requested > sizeof(got)) { | |
1382 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | GetFromBigBuf(got,requested,offset); | |
1387 | WaitForResponse(CMD_ACK,NULL); | |
1388 | ||
1389 | i = 0; | |
1390 | for (j = 0; j < requested; j++) { | |
1391 | i++; | |
1392 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1393 | if (i == 8) { | |
1394 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1395 | PrintAndLog("%s", string_buf); | |
1396 | string_buf[0] = '\0'; | |
1397 | string_ptr = string_buf; | |
1398 | i = 0; | |
1399 | } | |
1400 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1401 | *(string_ptr - 1) = '\0'; | |
1402 | PrintAndLog("%s", string_buf); | |
1403 | string_buf[0] = '\0'; | |
1404 | } | |
1405 | } | |
1406 | return 0; | |
7fe9b0b7 | 1407 | } |
1408 | ||
7fe9b0b7 | 1409 | int CmdHide(const char *Cmd) |
1410 | { | |
e0165dcf | 1411 | HideGraphWindow(); |
1412 | return 0; | |
7fe9b0b7 | 1413 | } |
1414 | ||
78f5b1a7 | 1415 | //zero mean GraphBuffer |
7fe9b0b7 | 1416 | int CmdHpf(const char *Cmd) |
1417 | { | |
e0165dcf | 1418 | int i; |
1419 | int accum = 0; | |
7fe9b0b7 | 1420 | |
e0165dcf | 1421 | for (i = 10; i < GraphTraceLen; ++i) |
1422 | accum += GraphBuffer[i]; | |
1423 | accum /= (GraphTraceLen - 10); | |
1424 | for (i = 0; i < GraphTraceLen; ++i) | |
1425 | GraphBuffer[i] -= accum; | |
7fe9b0b7 | 1426 | |
e0165dcf | 1427 | RepaintGraphWindow(); |
1428 | return 0; | |
7fe9b0b7 | 1429 | } |
f6d9fb17 | 1430 | |
f6821167 | 1431 | uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b) |
f6d9fb17 MHS |
1432 | { |
1433 | int i; | |
1434 | uint8_t val = 0; | |
1435 | for(i =0 ; i < bits_per_sample; i++) | |
1436 | { | |
f6821167 | 1437 | val |= (headBit(b) << (7-i)); |
f6d9fb17 MHS |
1438 | } |
1439 | return val; | |
1440 | } | |
7fe9b0b7 | 1441 | |
1fbf8956 | 1442 | int getSamples(const char *Cmd, bool silent) |
7fe9b0b7 | 1443 | { |
e0165dcf | 1444 | //If we get all but the last byte in bigbuf, |
1445 | // we don't have to worry about remaining trash | |
1446 | // in the last byte in case the bits-per-sample | |
1447 | // does not line up on byte boundaries | |
1448 | ||
1449 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1450 | ||
1451 | int n = strtol(Cmd, NULL, 0); | |
1452 | ||
709665b5 | 1453 | if (n == 0 || n > sizeof(got)) |
e0165dcf | 1454 | n = sizeof(got); |
1455 | ||
1456 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
1457 | GetFromBigBuf(got,n,0); | |
1458 | PrintAndLog("Data fetched"); | |
1459 | UsbCommand response; | |
1460 | WaitForResponse(CMD_ACK, &response); | |
1461 | uint8_t bits_per_sample = 8; | |
1462 | ||
1463 | //Old devices without this feature would send 0 at arg[0] | |
1464 | if(response.arg[0] > 0) | |
1465 | { | |
1466 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1467 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1468 | , sc->decimation); | |
1469 | bits_per_sample = sc->bits_per_sample; | |
1470 | } | |
1471 | if(bits_per_sample < 8) | |
1472 | { | |
1473 | PrintAndLog("Unpacking..."); | |
f6821167 | 1474 | BitstreamIn bout = { got, bits_per_sample * n, 0}; |
e0165dcf | 1475 | int j =0; |
e6432f05 | 1476 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { |
e0165dcf | 1477 | uint8_t sample = getByte(bits_per_sample, &bout); |
1478 | GraphBuffer[j] = ((int) sample )- 128; | |
1479 | } | |
1480 | GraphTraceLen = j; | |
1481 | PrintAndLog("Unpacked %d samples" , j ); | |
1482 | }else | |
1483 | { | |
1484 | for (int j = 0; j < n; j++) { | |
1485 | GraphBuffer[j] = ((int)got[j]) - 128; | |
1486 | } | |
1487 | GraphTraceLen = n; | |
1488 | } | |
1489 | ||
1490 | RepaintGraphWindow(); | |
1491 | return 0; | |
1fbf8956 | 1492 | } |
1493 | ||
1494 | int CmdSamples(const char *Cmd) | |
1495 | { | |
e0165dcf | 1496 | return getSamples(Cmd, false); |
7fe9b0b7 | 1497 | } |
1498 | ||
d6a120a2 MHS |
1499 | int CmdTuneSamples(const char *Cmd) |
1500 | { | |
fdcfbdcc RAB |
1501 | int timeout = 0, arg = FLAG_TUNE_ALL; |
1502 | ||
1503 | if(*Cmd == 'l') { | |
1504 | arg = FLAG_TUNE_LF; | |
1505 | } else if (*Cmd == 'h') { | |
1506 | arg = FLAG_TUNE_HF; | |
1507 | } else if (*Cmd != '\0') { | |
1508 | PrintAndLog("use 'tune' or 'tune l' or 'tune h'"); | |
1509 | return 0; | |
1510 | } | |
1511 | ||
3aa4014b | 1512 | printf("\nMeasuring antenna characteristics, please wait..."); |
ba1a299c | 1513 | |
fdcfbdcc | 1514 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}}; |
3aa4014b | 1515 | SendCommand(&c); |
1516 | ||
1517 | UsbCommand resp; | |
1518 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1519 | timeout++; | |
1520 | printf("."); | |
1521 | if (timeout > 7) { | |
1522 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1523 | return 1; | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | int peakv, peakf; | |
1528 | int vLf125, vLf134, vHf; | |
1529 | vLf125 = resp.arg[0] & 0xffff; | |
1530 | vLf134 = resp.arg[0] >> 16; | |
1531 | vHf = resp.arg[1] & 0xffff;; | |
1532 | peakf = resp.arg[2] & 0xffff; | |
1533 | peakv = resp.arg[2] >> 16; | |
1534 | PrintAndLog(""); | |
1535 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1536 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1537 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1538 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 1539 | |
2767fc02 | 1540 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. |
1541 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
1542 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1543 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
0d0d0499 | 1544 | |
1545 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 1546 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 1547 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 1548 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 1549 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 1550 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 1551 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 1552 | PrintAndLog("# Your HF antenna is marginal."); |
1553 | ||
0d0d0499 | 1554 | if (peakv >= LF_UNUSABLE_V) { |
1555 | for (int i = 0; i < 256; i++) { | |
1556 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
1557 | } | |
1558 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
1559 | PrintAndLog("\n"); | |
1560 | GraphTraceLen = 256; | |
1561 | ShowGraphWindow(); | |
abd16c45 | 1562 | RepaintGraphWindow(); |
ba1a299c | 1563 | } |
1564 | ||
b4fb11ba | 1565 | return 0; |
d6a120a2 MHS |
1566 | } |
1567 | ||
3aa4014b | 1568 | |
7fe9b0b7 | 1569 | int CmdLoad(const char *Cmd) |
1570 | { | |
e0165dcf | 1571 | char filename[FILE_PATH_SIZE] = {0x00}; |
1572 | int len = 0; | |
b915fda3 | 1573 | |
e0165dcf | 1574 | len = strlen(Cmd); |
1575 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1576 | memcpy(filename, Cmd, len); | |
b915fda3 | 1577 | |
e0165dcf | 1578 | FILE *f = fopen(filename, "r"); |
1579 | if (!f) { | |
1580 | PrintAndLog("couldn't open '%s'", filename); | |
1581 | return 0; | |
1582 | } | |
1583 | ||
1584 | GraphTraceLen = 0; | |
1585 | char line[80]; | |
1586 | while (fgets(line, sizeof (line), f)) { | |
1587 | GraphBuffer[GraphTraceLen] = atoi(line); | |
1588 | GraphTraceLen++; | |
1589 | } | |
1590 | fclose(f); | |
1591 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
1592 | RepaintGraphWindow(); | |
1593 | return 0; | |
7fe9b0b7 | 1594 | } |
1595 | ||
1596 | int CmdLtrim(const char *Cmd) | |
1597 | { | |
e0165dcf | 1598 | int ds = atoi(Cmd); |
cc15a118 | 1599 | if (GraphTraceLen<=0) return 0; |
e0165dcf | 1600 | for (int i = ds; i < GraphTraceLen; ++i) |
1601 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
1602 | GraphTraceLen -= ds; | |
7fe9b0b7 | 1603 | |
e0165dcf | 1604 | RepaintGraphWindow(); |
1605 | return 0; | |
7fe9b0b7 | 1606 | } |
ec75f5c1 | 1607 | |
1608 | // trim graph to input argument length | |
9ec1416a | 1609 | int CmdRtrim(const char *Cmd) |
1610 | { | |
e0165dcf | 1611 | int ds = atoi(Cmd); |
9ec1416a | 1612 | |
e0165dcf | 1613 | GraphTraceLen = ds; |
9ec1416a | 1614 | |
e0165dcf | 1615 | RepaintGraphWindow(); |
1616 | return 0; | |
9ec1416a | 1617 | } |
7fe9b0b7 | 1618 | |
f75b313b | 1619 | // trim graph (middle) piece |
1620 | int CmdMtrim(const char *Cmd) { | |
1621 | int start = 0, stop = 0; | |
1622 | sscanf(Cmd, "%i %i", &start, &stop); | |
1623 | ||
1624 | if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0; | |
1625 | start++; //leave start position sample | |
1626 | ||
1627 | GraphTraceLen -= stop - start; | |
1628 | for (int i = 0; i < GraphTraceLen; i++) { | |
1629 | GraphBuffer[start+i] = GraphBuffer[stop+i]; | |
1630 | } | |
1631 | return 0; | |
1632 | } | |
1633 | ||
1634 | ||
7fe9b0b7 | 1635 | int CmdNorm(const char *Cmd) |
1636 | { | |
e0165dcf | 1637 | int i; |
1638 | int max = INT_MIN, min = INT_MAX; | |
7fe9b0b7 | 1639 | |
e0165dcf | 1640 | for (i = 10; i < GraphTraceLen; ++i) { |
1641 | if (GraphBuffer[i] > max) | |
1642 | max = GraphBuffer[i]; | |
1643 | if (GraphBuffer[i] < min) | |
1644 | min = GraphBuffer[i]; | |
1645 | } | |
7fe9b0b7 | 1646 | |
e0165dcf | 1647 | if (max != min) { |
1648 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 1649 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
e0165dcf | 1650 | (max - min); |
ba1a299c | 1651 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
e0165dcf | 1652 | } |
1653 | } | |
1654 | RepaintGraphWindow(); | |
1655 | return 0; | |
7fe9b0b7 | 1656 | } |
1657 | ||
1658 | int CmdPlot(const char *Cmd) | |
1659 | { | |
e0165dcf | 1660 | ShowGraphWindow(); |
1661 | return 0; | |
7fe9b0b7 | 1662 | } |
1663 | ||
1664 | int CmdSave(const char *Cmd) | |
1665 | { | |
e0165dcf | 1666 | char filename[FILE_PATH_SIZE] = {0x00}; |
1667 | int len = 0; | |
b915fda3 | 1668 | |
e0165dcf | 1669 | len = strlen(Cmd); |
1670 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1671 | memcpy(filename, Cmd, len); | |
1672 | ||
b915fda3 | 1673 | |
e0165dcf | 1674 | FILE *f = fopen(filename, "w"); |
1675 | if(!f) { | |
1676 | PrintAndLog("couldn't open '%s'", filename); | |
1677 | return 0; | |
1678 | } | |
1679 | int i; | |
1680 | for (i = 0; i < GraphTraceLen; i++) { | |
1681 | fprintf(f, "%d\n", GraphBuffer[i]); | |
1682 | } | |
1683 | fclose(f); | |
1684 | PrintAndLog("saved to '%s'", Cmd); | |
1685 | return 0; | |
7fe9b0b7 | 1686 | } |
1687 | ||
1688 | int CmdScale(const char *Cmd) | |
1689 | { | |
e0165dcf | 1690 | CursorScaleFactor = atoi(Cmd); |
1691 | if (CursorScaleFactor == 0) { | |
1692 | PrintAndLog("bad, can't have zero scale"); | |
1693 | CursorScaleFactor = 1; | |
1694 | } | |
1695 | RepaintGraphWindow(); | |
1696 | return 0; | |
7fe9b0b7 | 1697 | } |
1698 | ||
d51b2eda MHS |
1699 | int CmdDirectionalThreshold(const char *Cmd) |
1700 | { | |
e0165dcf | 1701 | int8_t upThres = param_get8(Cmd, 0); |
1702 | int8_t downThres = param_get8(Cmd, 1); | |
1703 | ||
1704 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
1705 | ||
1706 | int lastValue = GraphBuffer[0]; | |
1707 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
1708 | ||
1709 | for (int i = 1; i < GraphTraceLen; ++i) { | |
1710 | // Apply first threshold to samples heading up | |
1711 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
1712 | { | |
1713 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 1714 | GraphBuffer[i] = 127; |
e0165dcf | 1715 | } |
1716 | // Apply second threshold to samples heading down | |
1717 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
1718 | { | |
1719 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 1720 | GraphBuffer[i] = -127; |
e0165dcf | 1721 | } |
1722 | else | |
1723 | { | |
1724 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
1725 | GraphBuffer[i] = GraphBuffer[i-1]; | |
1726 | ||
1727 | } | |
1728 | } | |
1729 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
1730 | RepaintGraphWindow(); | |
1731 | return 0; | |
d51b2eda MHS |
1732 | } |
1733 | ||
7fe9b0b7 | 1734 | int CmdZerocrossings(const char *Cmd) |
1735 | { | |
e0165dcf | 1736 | // Zero-crossings aren't meaningful unless the signal is zero-mean. |
1737 | CmdHpf(""); | |
1738 | ||
1739 | int sign = 1; | |
1740 | int zc = 0; | |
1741 | int lastZc = 0; | |
1742 | ||
1743 | for (int i = 0; i < GraphTraceLen; ++i) { | |
1744 | if (GraphBuffer[i] * sign >= 0) { | |
1745 | // No change in sign, reproduce the previous sample count. | |
1746 | zc++; | |
1747 | GraphBuffer[i] = lastZc; | |
1748 | } else { | |
1749 | // Change in sign, reset the sample count. | |
1750 | sign = -sign; | |
1751 | GraphBuffer[i] = lastZc; | |
1752 | if (sign > 0) { | |
1753 | lastZc = zc; | |
1754 | zc = 0; | |
1755 | } | |
1756 | } | |
1757 | } | |
1758 | ||
1759 | RepaintGraphWindow(); | |
1760 | return 0; | |
7fe9b0b7 | 1761 | } |
1762 | ||
f6821167 MHS |
1763 | int usage_data_bin2hex(){ |
1764 | PrintAndLog("Usage: data bin2hex <binary_digits>"); | |
1765 | PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)"); | |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | /** | |
1770 | * @brief Utility for conversion via cmdline. | |
1771 | * @param Cmd | |
1772 | * @return | |
1773 | */ | |
1774 | int Cmdbin2hex(const char *Cmd) | |
1775 | { | |
1776 | int bg =0, en =0; | |
1777 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1778 | { | |
1779 | return usage_data_bin2hex(); | |
1780 | } | |
1781 | //Number of digits supplied as argument | |
1782 | size_t length = en - bg +1; | |
1783 | size_t bytelen = (length+7) / 8; | |
1784 | uint8_t* arr = (uint8_t *) malloc(bytelen); | |
1785 | memset(arr, 0, bytelen); | |
1786 | BitstreamOut bout = { arr, 0, 0 }; | |
1787 | ||
1788 | for(; bg <= en ;bg++) | |
1789 | { | |
1790 | char c = Cmd[bg]; | |
1791 | if( c == '1') pushBit(&bout, 1); | |
1792 | else if( c == '0') pushBit(&bout, 0); | |
1793 | else PrintAndLog("Ignoring '%c'", c); | |
1794 | } | |
1795 | ||
1796 | if(bout.numbits % 8 != 0) | |
1797 | { | |
1798 | printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8)); | |
1799 | } | |
1800 | ||
1801 | //Uses printf instead of PrintAndLog since the latter | |
1802 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1803 | // allocate a string and write to that first... | |
1804 | for(size_t x = 0; x < bytelen ; x++) | |
1805 | { | |
1806 | printf("%02X", arr[x]); | |
1807 | } | |
1808 | printf("\n"); | |
1809 | free(arr); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
72c5877a | 1813 | int usage_data_hex2bin() { |
1814 | PrintAndLog("Usage: data hex2bin <hex_digits>"); | |
f6821167 MHS |
1815 | PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)"); |
1816 | return 0; | |
1817 | ||
1818 | } | |
1819 | ||
1820 | int Cmdhex2bin(const char *Cmd) | |
1821 | { | |
1822 | int bg =0, en =0; | |
1823 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1824 | { | |
1825 | return usage_data_hex2bin(); | |
1826 | } | |
1827 | ||
1828 | ||
1829 | while(bg <= en ) | |
1830 | { | |
1831 | char x = Cmd[bg++]; | |
1832 | // capitalize | |
1833 | if (x >= 'a' && x <= 'f') | |
1834 | x -= 32; | |
1835 | // convert to numeric value | |
1836 | if (x >= '0' && x <= '9') | |
1837 | x -= '0'; | |
1838 | else if (x >= 'A' && x <= 'F') | |
1839 | x -= 'A' - 10; | |
1840 | else | |
1841 | continue; | |
1842 | ||
1843 | //Uses printf instead of PrintAndLog since the latter | |
1844 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1845 | // allocate a string and write to that first... | |
1846 | ||
1847 | for(int i= 0 ; i < 4 ; ++i) | |
1848 | printf("%d",(x >> (3 - i)) & 1); | |
1849 | } | |
1850 | printf("\n"); | |
1851 | ||
1852 | return 0; | |
1853 | } | |
1854 | ||
ba1a299c | 1855 | static command_t CommandTable[] = |
7fe9b0b7 | 1856 | { |
e0165dcf | 1857 | {"help", CmdHelp, 1, "This help"}, |
49bbc60a | 1858 | {"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 | 1859 | {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, |
415274a7 | 1860 | {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"}, |
e0165dcf | 1861 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, |
fef74fdc | 1862 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
5d01f50a | 1863 | {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"}, |
e0165dcf | 1864 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
e0165dcf | 1865 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
1866 | {"dec", CmdDec, 1, "Decimate samples"}, | |
1867 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
b2c330b3 | 1868 | {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"}, |
e0165dcf | 1869 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, |
e0165dcf | 1870 | {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, |
1871 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
1872 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
1873 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
f6821167 | 1874 | {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"}, |
e0165dcf | 1875 | {"hide", CmdHide, 1, "Hide graph window"}, |
1876 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
1877 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
1878 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
1879 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
f75b313b | 1880 | {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"}, |
fef74fdc | 1881 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, |
e0165dcf | 1882 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
1883 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
ace26dbd | 1884 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"}, |
e0165dcf | 1885 | {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, |
411105e0 | 1886 | {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"}, |
e0165dcf | 1887 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, |
1888 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
1889 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
f9f0e83b | 1890 | {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"}, |
e0165dcf | 1891 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, |
709665b5 | 1892 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"}, |
e0165dcf | 1893 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, |
e0165dcf | 1894 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
1895 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
1896 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
1897 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
1898 | {NULL, NULL, 0, NULL} | |
7fe9b0b7 | 1899 | }; |
1900 | ||
1901 | int CmdData(const char *Cmd) | |
1902 | { | |
e0165dcf | 1903 | CmdsParse(CommandTable, Cmd); |
1904 | return 0; | |
7fe9b0b7 | 1905 | } |
1906 | ||
1907 | int CmdHelp(const char *Cmd) | |
1908 | { | |
e0165dcf | 1909 | CmdsHelp(CommandTable); |
1910 | return 0; | |
7fe9b0b7 | 1911 | } |