]>
Commit | Line | Data |
---|---|---|
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 | ||
127f1490 | 897 | //move to cmdlfhid.c |
eb191de6 | 898 | //by marshmellow (based on existing demod + holiman's refactor) |
899 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
900 | //print full HID Prox ID and some bit format details if found | |
b3b70669 | 901 | int CmdFSKdemodHID(const char *Cmd) |
902 | { | |
e0165dcf | 903 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
904 | uint32_t hi2=0, hi=0, lo=0; | |
905 | ||
906 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
907 | size_t BitLen = getFromGraphBuf(BitStream); | |
908 | if (BitLen==0) return 0; | |
909 | //get binary from fsk wave | |
910 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
911 | if (idx<0){ | |
912 | if (g_debugMode){ | |
913 | if (idx==-1){ | |
914 | PrintAndLog("DEBUG: Just Noise Detected"); | |
915 | } else if (idx == -2) { | |
916 | PrintAndLog("DEBUG: Error demoding fsk"); | |
917 | } else if (idx == -3) { | |
918 | PrintAndLog("DEBUG: Preamble not found"); | |
919 | } else if (idx == -4) { | |
920 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
921 | } else { | |
922 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
923 | } | |
924 | } | |
925 | return 0; | |
926 | } | |
927 | if (hi2==0 && hi==0 && lo==0) { | |
928 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
929 | return 0; | |
930 | } | |
931 | if (hi2 != 0){ //extra large HID tags | |
932 | PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", | |
933 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); | |
934 | } | |
935 | else { //standard HID tags <38 bits | |
936 | uint8_t fmtLen = 0; | |
937 | uint32_t fc = 0; | |
938 | uint32_t cardnum = 0; | |
939 | if (((hi>>5)&1)==1){//if bit 38 is set then < 37 bit format is used | |
940 | uint32_t lo2=0; | |
941 | lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit | |
942 | uint8_t idx3 = 1; | |
943 | while(lo2>1){ //find last bit set to 1 (format len bit) | |
944 | lo2=lo2>>1; | |
945 | idx3++; | |
946 | } | |
947 | fmtLen =idx3+19; | |
948 | fc =0; | |
949 | cardnum=0; | |
950 | if(fmtLen==26){ | |
951 | cardnum = (lo>>1)&0xFFFF; | |
952 | fc = (lo>>17)&0xFF; | |
953 | } | |
954 | if(fmtLen==34){ | |
955 | cardnum = (lo>>1)&0xFFFF; | |
956 | fc= ((hi&1)<<15)|(lo>>17); | |
957 | } | |
958 | if(fmtLen==35){ | |
959 | cardnum = (lo>>1)&0xFFFFF; | |
960 | fc = ((hi&1)<<11)|(lo>>21); | |
961 | } | |
962 | } | |
963 | else { //if bit 38 is not set then 37 bit format is used | |
964 | fmtLen = 37; | |
965 | fc = 0; | |
966 | cardnum = 0; | |
967 | if(fmtLen == 37){ | |
968 | cardnum = (lo>>1)&0x7FFFF; | |
969 | fc = ((hi&0xF)<<12)|(lo>>20); | |
970 | } | |
971 | } | |
972 | PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", | |
973 | (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, | |
974 | (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); | |
975 | } | |
976 | setDemodBuf(BitStream,BitLen,idx); | |
977 | if (g_debugMode){ | |
978 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
979 | printDemodBuff(); | |
980 | } | |
981 | return 1; | |
ec75f5c1 | 982 | } |
983 | ||
127f1490 | 984 | |
04d2721b | 985 | //by marshmellow |
986 | //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) | |
ec75f5c1 | 987 | //print full Paradox Prox ID and some bit format details if found |
988 | int CmdFSKdemodParadox(const char *Cmd) | |
989 | { | |
e0165dcf | 990 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
991 | uint32_t hi2=0, hi=0, lo=0; | |
992 | ||
993 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
994 | size_t BitLen = getFromGraphBuf(BitStream); | |
995 | if (BitLen==0) return 0; | |
996 | //get binary from fsk wave | |
997 | int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); | |
998 | if (idx<0){ | |
999 | if (g_debugMode){ | |
1000 | if (idx==-1){ | |
1001 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1002 | } else if (idx == -2) { | |
1003 | PrintAndLog("DEBUG: Error demoding fsk"); | |
1004 | } else if (idx == -3) { | |
1005 | PrintAndLog("DEBUG: Preamble not found"); | |
1006 | } else if (idx == -4) { | |
1007 | PrintAndLog("DEBUG: Error in Manchester data"); | |
1008 | } else { | |
1009 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1010 | } | |
1011 | } | |
1012 | return 0; | |
1013 | } | |
1014 | if (hi2==0 && hi==0 && lo==0){ | |
1015 | if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); | |
1016 | return 0; | |
1017 | } | |
1018 | uint32_t fc = ((hi & 0x3)<<6) | (lo>>26); | |
1019 | uint32_t cardnum = (lo>>10)&0xFFFF; | |
1020 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1021 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1022 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1023 | ||
1024 | PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x", | |
1025 | hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo); | |
1026 | setDemodBuf(BitStream,BitLen,idx); | |
1027 | if (g_debugMode){ | |
1028 | PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); | |
1029 | printDemodBuff(); | |
1030 | } | |
1031 | return 1; | |
b3b70669 | 1032 | } |
1033 | ||
2fc2150e | 1034 | //by marshmellow |
eb191de6 | 1035 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 |
1036 | //print ioprox ID and some format details | |
b3b70669 | 1037 | int CmdFSKdemodIO(const char *Cmd) |
1038 | { | |
e0165dcf | 1039 | int idx=0; |
1040 | //something in graphbuffer? | |
1041 | if (GraphTraceLen < 65) { | |
1042 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
1043 | return 0; | |
1044 | } | |
1045 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1046 | size_t BitLen = getFromGraphBuf(BitStream); | |
1047 | if (BitLen==0) return 0; | |
1048 | ||
1049 | //get binary from fsk wave | |
1050 | idx = IOdemodFSK(BitStream,BitLen); | |
1051 | if (idx<0){ | |
1052 | if (g_debugMode){ | |
1053 | if (idx==-1){ | |
1054 | PrintAndLog("DEBUG: Just Noise Detected"); | |
1055 | } else if (idx == -2) { | |
1056 | PrintAndLog("DEBUG: not enough samples"); | |
1057 | } else if (idx == -3) { | |
1058 | PrintAndLog("DEBUG: error during fskdemod"); | |
1059 | } else if (idx == -4) { | |
1060 | PrintAndLog("DEBUG: Preamble not found"); | |
1061 | } else if (idx == -5) { | |
1062 | PrintAndLog("DEBUG: Separator bits not found"); | |
1063 | } else { | |
1064 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
1065 | } | |
1066 | } | |
1067 | return 0; | |
1068 | } | |
1069 | if (idx==0){ | |
2767fc02 | 1070 | if (g_debugMode){ |
e0165dcf | 1071 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); |
2767fc02 | 1072 | if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); |
e0165dcf | 1073 | } |
1074 | return 0; | |
1075 | } | |
1076 | //Index map | |
1077 | //0 10 20 30 40 50 60 | |
1078 | //| | | | | | | | |
1079 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
1080 | //----------------------------------------------------------------------------- | |
1081 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
1082 | // | |
1083 | //XSF(version)facility:codeone+codetwo (raw) | |
1084 | //Handle the data | |
1085 | if (idx+64>BitLen) { | |
2767fc02 | 1086 | if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen); |
e0165dcf | 1087 | return 0; |
1088 | } | |
1089 | 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]); | |
1090 | 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]); | |
1091 | 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]); | |
1092 | 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]); | |
1093 | 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]); | |
1094 | 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]); | |
1095 | 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]); | |
1096 | ||
1097 | uint32_t code = bytebits_to_byte(BitStream+idx,32); | |
1098 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); | |
1099 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 | |
1100 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
1101 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 | |
1102 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
1103 | uint16_t calccrc = 0; | |
1104 | ||
1105 | for (uint8_t i=1; i<6; ++i){ | |
1106 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
e0165dcf | 1107 | } |
1108 | calccrc &= 0xff; | |
1109 | calccrc = 0xff - calccrc; | |
1110 | ||
1111 | char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; | |
1112 | ||
1113 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
1114 | setDemodBuf(BitStream,64,idx); | |
1115 | if (g_debugMode){ | |
1116 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
1117 | printDemodBuff(); | |
1118 | } | |
1119 | return 1; | |
b3b70669 | 1120 | } |
1e090a61 | 1121 | |
1e090a61 | 1122 | //by marshmellow |
1123 | //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) | |
1124 | //print full AWID Prox ID and some bit format details if found | |
1125 | int CmdFSKdemodAWID(const char *Cmd) | |
1126 | { | |
e0165dcf | 1127 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
1128 | size_t size = getFromGraphBuf(BitStream); | |
1129 | if (size==0) return 0; | |
1130 | ||
1131 | //get binary from fsk wave | |
1132 | int idx = AWIDdemodFSK(BitStream, &size); | |
1133 | if (idx<=0){ | |
6923d3f1 | 1134 | if (g_debugMode){ |
e0165dcf | 1135 | if (idx == -1) |
1136 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1137 | else if (idx == -2) | |
1138 | PrintAndLog("DEBUG: Error - only noise found"); | |
1139 | else if (idx == -3) | |
1140 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1141 | else if (idx == -4) | |
1142 | PrintAndLog("DEBUG: Error - AWID preamble not found"); | |
1143 | else if (idx == -5) | |
1144 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1145 | else | |
1146 | PrintAndLog("DEBUG: Error %d",idx); | |
1147 | } | |
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | // Index map | |
1152 | // 0 10 20 30 40 50 60 | |
1153 | // | | | | | | | | |
1154 | // 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 | |
1155 | // ----------------------------------------------------------------------------- | |
1156 | // 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 | |
1157 | // 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 | |
1158 | // |---26 bit---| |-----117----||-------------142-------------| | |
1159 | // b = format bit len, o = odd parity of last 3 bits | |
1160 | // f = facility code, c = card number | |
1161 | // w = wiegand parity | |
1162 | // (26 bit format shown) | |
1e090a61 | 1163 | |
e0165dcf | 1164 | //get raw ID before removing parities |
1165 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32); | |
1166 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32); | |
1167 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32); | |
1168 | setDemodBuf(BitStream,96,idx); | |
1169 | ||
1170 | size = removeParity(BitStream, idx+8, 4, 1, 88); | |
1171 | if (size != 66){ | |
6923d3f1 | 1172 | if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); |
e0165dcf | 1173 | return 0; |
1174 | } | |
1175 | // ok valid card found! | |
1176 | ||
1177 | // Index map | |
1178 | // 0 10 20 30 40 50 60 | |
1179 | // | | | | | | | | |
1180 | // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 | |
1181 | // ----------------------------------------------------------------------------- | |
1182 | // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 | |
1183 | // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1184 | // |26 bit| |-117--| |-----142------| | |
1185 | // b = format bit len, o = odd parity of last 3 bits | |
1186 | // f = facility code, c = card number | |
1187 | // w = wiegand parity | |
1188 | // (26 bit format shown) | |
1189 | ||
1190 | uint32_t fc = 0; | |
1191 | uint32_t cardnum = 0; | |
1192 | uint32_t code1 = 0; | |
1193 | uint32_t code2 = 0; | |
1194 | uint8_t fmtLen = bytebits_to_byte(BitStream,8); | |
1195 | if (fmtLen==26){ | |
1196 | fc = bytebits_to_byte(BitStream+9, 8); | |
1197 | cardnum = bytebits_to_byte(BitStream+17, 16); | |
1198 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1199 | PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); | |
1200 | } else { | |
1201 | cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16); | |
1202 | if (fmtLen>32){ | |
1203 | code1 = bytebits_to_byte(BitStream+8,fmtLen-32); | |
1204 | code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32); | |
1205 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); | |
1206 | } else{ | |
1207 | code1 = bytebits_to_byte(BitStream+8,fmtLen); | |
1208 | PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); | |
1209 | } | |
1210 | } | |
1211 | if (g_debugMode){ | |
1212 | PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); | |
1213 | printDemodBuff(); | |
1214 | } | |
1215 | //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands | |
1216 | return 1; | |
1e090a61 | 1217 | } |
1218 | ||
1219 | //by marshmellow | |
1220 | //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) | |
1221 | //print full Farpointe Data/Pyramid Prox ID and some bit format details if found | |
1222 | int CmdFSKdemodPyramid(const char *Cmd) | |
1223 | { | |
e0165dcf | 1224 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
1225 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1226 | size_t size = getFromGraphBuf(BitStream); | |
1227 | if (size==0) return 0; | |
1228 | ||
1229 | //get binary from fsk wave | |
1230 | int idx = PyramiddemodFSK(BitStream, &size); | |
1231 | if (idx < 0){ | |
6923d3f1 | 1232 | if (g_debugMode){ |
e0165dcf | 1233 | if (idx == -5) |
1234 | PrintAndLog("DEBUG: Error - not enough samples"); | |
1235 | else if (idx == -1) | |
1236 | PrintAndLog("DEBUG: Error - only noise found"); | |
1237 | else if (idx == -2) | |
1238 | PrintAndLog("DEBUG: Error - problem during FSK demod"); | |
1239 | else if (idx == -3) | |
1240 | PrintAndLog("DEBUG: Error - Size not correct: %d", size); | |
1241 | else if (idx == -4) | |
1242 | PrintAndLog("DEBUG: Error - Pyramid preamble not found"); | |
1243 | else | |
1244 | PrintAndLog("DEBUG: Error - idx: %d",idx); | |
1245 | } | |
1246 | return 0; | |
1247 | } | |
1248 | // Index map | |
1249 | // 0 10 20 30 40 50 60 | |
1250 | // | | | | | | | | |
1251 | // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 | |
1252 | // ----------------------------------------------------------------------------- | |
1253 | // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 | |
1254 | // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o | |
1255 | ||
1256 | // 64 70 80 90 100 110 120 | |
1257 | // | | | | | | | | |
1258 | // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 | |
1259 | // ----------------------------------------------------------------------------- | |
1260 | // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 | |
1261 | // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o | |
1262 | // |---115---||---------71---------| | |
1263 | // s = format start bit, o = odd parity of last 7 bits | |
1264 | // f = facility code, c = card number | |
1265 | // w = wiegand parity, x = extra space for other formats | |
1266 | // p = unknown checksum | |
1267 | // (26 bit format shown) | |
1268 | ||
1269 | //get bytes for checksum calc | |
1270 | uint8_t checksum = bytebits_to_byte(BitStream + idx + 120, 8); | |
1271 | uint8_t csBuff[14] = {0x00}; | |
1272 | for (uint8_t i = 0; i < 13; i++){ | |
1273 | csBuff[i] = bytebits_to_byte(BitStream + idx + 16 + (i*8), 8); | |
1274 | } | |
1275 | //check checksum calc | |
1276 | //checksum calc thanks to ICEMAN!! | |
1277 | uint32_t checkCS = CRC8Maxim(csBuff,13); | |
1278 | ||
1279 | //get raw ID before removing parities | |
1280 | uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); | |
1281 | uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); | |
1282 | uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); | |
1283 | uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); | |
1284 | setDemodBuf(BitStream,128,idx); | |
1285 | ||
1286 | size = removeParity(BitStream, idx+8, 8, 1, 120); | |
1287 | if (size != 105){ | |
6923d3f1 | 1288 | if (g_debugMode) |
e0165dcf | 1289 | PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); |
1290 | return 0; | |
1291 | } | |
1292 | ||
1293 | // ok valid card found! | |
1294 | ||
1295 | // Index map | |
1296 | // 0 10 20 30 40 50 60 70 | |
1297 | // | | | | | | | | | |
1298 | // 01234567890123456789012345678901234567890123456789012345678901234567890 | |
1299 | // ----------------------------------------------------------------------- | |
1300 | // 00000000000000000000000000000000000000000000000000000000000000000000000 | |
1301 | // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
1302 | ||
1303 | // 71 80 90 100 | |
1304 | // | | | | | |
1305 | // 1 2 34567890 1234567890123456 7 8901234 | |
1306 | // --------------------------------------- | |
1307 | // 1 1 01110011 0000000001000110 0 1001010 | |
1308 | // s w ffffffff cccccccccccccccc w ppppppp | |
1309 | // |--115-| |------71------| | |
1310 | // s = format start bit, o = odd parity of last 7 bits | |
1311 | // f = facility code, c = card number | |
1312 | // w = wiegand parity, x = extra space for other formats | |
1313 | // p = unknown checksum | |
1314 | // (26 bit format shown) | |
1315 | ||
1316 | //find start bit to get fmtLen | |
1317 | int j; | |
1318 | for (j=0; j<size; j++){ | |
1319 | if(BitStream[j]) break; | |
1320 | } | |
1321 | uint8_t fmtLen = size-j-8; | |
1322 | uint32_t fc = 0; | |
1323 | uint32_t cardnum = 0; | |
1324 | uint32_t code1 = 0; | |
e0165dcf | 1325 | if (fmtLen==26){ |
1326 | fc = bytebits_to_byte(BitStream+73, 8); | |
1327 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1328 | code1 = bytebits_to_byte(BitStream+72,fmtLen); | |
1329 | 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); | |
1330 | } else if (fmtLen==45){ | |
1331 | fmtLen=42; //end = 10 bits not 7 like 26 bit fmt | |
1332 | fc = bytebits_to_byte(BitStream+53, 10); | |
1333 | cardnum = bytebits_to_byte(BitStream+63, 32); | |
1334 | PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1335 | } else { | |
1336 | cardnum = bytebits_to_byte(BitStream+81, 16); | |
1337 | if (fmtLen>32){ | |
1338 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32); | |
1339 | //code2 = bytebits_to_byte(BitStream+(size-32),32); | |
1340 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1341 | } else{ | |
1342 | //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen); | |
1343 | PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo); | |
1344 | } | |
1345 | } | |
1346 | if (checksum == checkCS) | |
1347 | PrintAndLog("Checksum %02x passed", checksum); | |
1348 | else | |
1349 | PrintAndLog("Checksum %02x failed - should have been %02x", checksum, checkCS); | |
1350 | ||
1351 | if (g_debugMode){ | |
1352 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); | |
1353 | printDemodBuff(); | |
1354 | } | |
1355 | return 1; | |
1e090a61 | 1356 | } |
1357 | ||
b2c330b3 | 1358 | // FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits) |
04bb0567 | 1359 | // 8 databits + 1 parity (1) |
1360 | // CIITT 16 chksum | |
1361 | // NATIONAL CODE, ICAR database | |
b2c330b3 | 1362 | // COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf |
04bb0567 | 1363 | // FLAG (animal/non-animal) |
709665b5 | 1364 | /* |
1365 | 38 IDbits | |
1366 | 10 country code | |
1367 | 1 extra app bit | |
1368 | 14 reserved bits | |
1369 | 1 animal bit | |
1370 | 16 ccitt CRC chksum over 64bit ID CODE. | |
1371 | 24 appli bits. | |
1372 | ||
1373 | -- sample: 985121004515220 [ 37FF65B88EF94 ] | |
1374 | */ | |
b2c330b3 | 1375 | int CmdFDXBdemodBI(const char *Cmd){ |
04bb0567 | 1376 | |
1377 | int invert = 1; | |
1378 | int clk = 32; | |
1379 | int errCnt = 0; | |
1380 | int maxErr = 0; | |
1381 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
1382 | size_t size = getFromGraphBuf(BitStream); | |
1383 | ||
1384 | errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); | |
1385 | if ( errCnt < 0 || errCnt > maxErr ) { | |
c2c7f6c2 | 1386 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); |
04bb0567 | 1387 | return 0; |
1388 | } | |
1389 | ||
1390 | errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1); | |
1391 | if (errCnt < 0 || errCnt > maxErr ) { | |
1392 | if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
1393 | return 0; | |
1394 | } | |
1395 | ||
b2c330b3 | 1396 | int preambleIndex = FDXBdemodBI(BitStream, &size); |
04bb0567 | 1397 | if (preambleIndex < 0){ |
b2c330b3 | 1398 | if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex); |
04bb0567 | 1399 | return 0; |
1400 | } | |
f6650679 | 1401 | if (size != 128) { |
1402 | if (g_debugMode) PrintAndLog("Error incorrect data length found"); | |
1403 | return 0; | |
1404 | } | |
04bb0567 | 1405 | |
1406 | setDemodBuf(BitStream, 128, preambleIndex); | |
04bb0567 | 1407 | |
29b6cacc | 1408 | // remove marker bits (1's every 9th digit after preamble) (pType = 2) |
fd1d30cb | 1409 | size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117); |
29b6cacc | 1410 | if ( size != 104 ) { |
04bb0567 | 1411 | if (g_debugMode) PrintAndLog("Error removeParity:: %d", size); |
1412 | return 0; | |
1413 | } | |
b2c330b3 | 1414 | if (g_debugMode) { |
1415 | char *bin = sprint_bin_break(BitStream,size,16); | |
1416 | PrintAndLog("DEBUG BinStream:\n%s",bin); | |
1417 | } | |
1418 | PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:"); | |
6eaa8da9 | 1419 | if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size); |
04bb0567 | 1420 | |
04bb0567 | 1421 | //got a good demod |
b2c330b3 | 1422 | uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32); |
04bb0567 | 1423 | uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10); |
1424 | uint8_t dataBlockBit = BitStream[48]; | |
1425 | uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14); | |
1426 | uint8_t animalBit = BitStream[63]; | |
1427 | uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16); | |
1428 | uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24); | |
1429 | ||
07b5a3c3 | 1430 | uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32); |
6eaa8da9 | 1431 | uint8_t raw[8]; |
1432 | num_to_bytes(rawid, 8, raw); | |
6eaa8da9 | 1433 | |
07b5a3c3 | 1434 | if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8)); |
6eaa8da9 | 1435 | |
07b5a3c3 | 1436 | uint16_t calcCrc = crc16_ccitt_kermit(raw, 8); |
43534cba | 1437 | PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode); |
1438 | PrintAndLog("National Code: %012" PRIu64, NationalCode); | |
c2c7f6c2 | 1439 | PrintAndLog("CountryCode: %04u", countryCode); |
b2c330b3 | 1440 | PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False"); |
1441 | PrintAndLog("reserved Code: %u", reservedCode); | |
1442 | PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False"); | |
6eaa8da9 | 1443 | PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed"); |
1444 | PrintAndLog("Extended: 0x%X\n", extended); | |
fd1d30cb | 1445 | |
04bb0567 | 1446 | return 1; |
1447 | } | |
1448 | ||
1449 | ||
e770c648 | 1450 | //by marshmellow |
1451 | //attempt to psk1 demod graph buffer | |
4ac906d1 | 1452 | int PSKDemod(const char *Cmd, bool verbose) |
e770c648 | 1453 | { |
e0165dcf | 1454 | int invert=0; |
1455 | int clk=0; | |
1456 | int maxErr=100; | |
1457 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1458 | if (clk==1){ | |
1459 | invert=1; | |
1460 | clk=0; | |
1461 | } | |
1462 | if (invert != 0 && invert != 1) { | |
2ec87733 | 1463 | if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd); |
e0165dcf | 1464 | return 0; |
1465 | } | |
1466 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1467 | size_t BitLen = getFromGraphBuf(BitStream); | |
2ec87733 | 1468 | if (BitLen==0) return 0; |
2eec55c8 | 1469 | uint8_t carrier=countFC(BitStream, BitLen, 0); |
e0165dcf | 1470 | if (carrier!=2 && carrier!=4 && carrier!=8){ |
1471 | //invalid carrier | |
1472 | return 0; | |
1473 | } | |
6fe5c94b | 1474 | if (g_debugMode){ |
1475 | PrintAndLog("Carrier: rf/%d",carrier); | |
1476 | } | |
e0165dcf | 1477 | int errCnt=0; |
1478 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
1479 | if (errCnt > maxErr){ | |
2767fc02 | 1480 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1481 | return 0; |
1482 | } | |
1483 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
2767fc02 | 1484 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
e0165dcf | 1485 | return 0; |
1486 | } | |
2767fc02 | 1487 | if (verbose || g_debugMode){ |
1488 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
e0165dcf | 1489 | if (errCnt>0){ |
2767fc02 | 1490 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1491 | } |
1492 | } | |
1493 | //prime demod buffer for output | |
1494 | setDemodBuf(BitStream,BitLen,0); | |
1495 | return 1; | |
4118b74d | 1496 | } |
e770c648 | 1497 | |
4118b74d | 1498 | // Indala 26 bit decode |
1499 | // by marshmellow | |
1500 | // optional arguments - same as CmdpskNRZrawDemod (clock & invert) | |
1501 | int CmdIndalaDecode(const char *Cmd) | |
1502 | { | |
b4fb11ba | 1503 | int ans; |
1504 | if (strlen(Cmd)>0){ | |
1505 | ans = PSKDemod(Cmd, 0); | |
1506 | } else{ //default to RF/32 | |
1507 | ans = PSKDemod("32", 0); | |
1508 | } | |
4118b74d | 1509 | |
7a8a982b | 1510 | if (!ans){ |
6923d3f1 | 1511 | if (g_debugMode) |
b4fb11ba | 1512 | PrintAndLog("Error1: %d",ans); |
ba1a299c | 1513 | return 0; |
1514 | } | |
1515 | uint8_t invert=0; | |
14331320 | 1516 | size_t size = DemodBufferLen; |
6923d3f1 | 1517 | int startIdx = indala26decode(DemodBuffer, &size, &invert); |
1518 | if (startIdx < 0 || size > 224) { | |
1519 | if (g_debugMode) | |
b4fb11ba | 1520 | PrintAndLog("Error2: %d",ans); |
ba1a299c | 1521 | return -1; |
1522 | } | |
6923d3f1 | 1523 | setDemodBuf(DemodBuffer, size, (size_t)startIdx); |
84871873 | 1524 | if (invert) |
6923d3f1 | 1525 | if (g_debugMode) |
e0165dcf | 1526 | PrintAndLog("Had to invert bits"); |
ec75f5c1 | 1527 | |
14331320 | 1528 | PrintAndLog("BitLen: %d",DemodBufferLen); |
ba1a299c | 1529 | //convert UID to HEX |
1530 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; | |
14331320 | 1531 | uid1=bytebits_to_byte(DemodBuffer,32); |
1532 | uid2=bytebits_to_byte(DemodBuffer+32,32); | |
1533 | if (DemodBufferLen==64) { | |
709665b5 | 1534 | PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2); |
14331320 | 1535 | } else { |
1536 | uid3=bytebits_to_byte(DemodBuffer+64,32); | |
1537 | uid4=bytebits_to_byte(DemodBuffer+96,32); | |
1538 | uid5=bytebits_to_byte(DemodBuffer+128,32); | |
1539 | uid6=bytebits_to_byte(DemodBuffer+160,32); | |
1540 | uid7=bytebits_to_byte(DemodBuffer+192,32); | |
1541 | PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", | |
709665b5 | 1542 | sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7); |
ba1a299c | 1543 | } |
b4fb11ba | 1544 | if (g_debugMode){ |
1545 | PrintAndLog("DEBUG: printing demodbuffer:"); | |
1546 | printDemodBuff(); | |
1547 | } | |
ba1a299c | 1548 | return 1; |
4118b74d | 1549 | } |
1550 | ||
411105e0 | 1551 | int CmdPSKNexWatch(const char *Cmd) |
1552 | { | |
1553 | if (!PSKDemod("", false)) return 0; | |
1554 | 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}; | |
1555 | size_t startIdx = 0, size = DemodBufferLen; | |
1556 | bool invert = false; | |
1557 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)){ | |
1558 | // if didn't find preamble try again inverting | |
1559 | if (!PSKDemod("1", false)) return 0; | |
1560 | size = DemodBufferLen; | |
1561 | if (!preambleSearch(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx)) return 0; | |
1562 | invert = true; | |
1563 | } | |
1564 | if (size != 128) return 0; | |
1565 | setDemodBuf(DemodBuffer, size, startIdx+4); | |
1566 | startIdx = 8+32; //4 = extra i added, 8 = preamble, 32 = reserved bits (always 0) | |
1567 | //get ID | |
1568 | uint32_t ID = 0; | |
1569 | for (uint8_t wordIdx=0; wordIdx<4; wordIdx++){ | |
1570 | for (uint8_t idx=0; idx<8; idx++){ | |
1571 | ID = (ID << 1) | DemodBuffer[startIdx+wordIdx+(idx*4)]; | |
1572 | } | |
1573 | } | |
1574 | //parity check (TBD) | |
1575 | ||
1576 | //checksum check (TBD) | |
1577 | ||
1578 | //output | |
1579 | PrintAndLog("NexWatch ID: %d", ID); | |
1580 | if (invert){ | |
1581 | PrintAndLog("Had to Invert - probably NexKey"); | |
1582 | for (uint8_t idx=0; idx<size; idx++) | |
1583 | DemodBuffer[idx] ^= 1; | |
1584 | } | |
1585 | ||
1586 | CmdPrintDemodBuff("x"); | |
1587 | return 1; | |
1588 | } | |
1589 | ||
04d2721b | 1590 | // by marshmellow |
e770c648 | 1591 | // takes 3 arguments - clock, invert, maxErr as integers |
1592 | // attempts to demodulate nrz only | |
1593 | // prints binary found and saves in demodbuffer for further commands | |
b4a2fcf6 | 1594 | int NRZrawDemod(const char *Cmd, bool verbose) |
e770c648 | 1595 | { |
e0165dcf | 1596 | int invert=0; |
1597 | int clk=0; | |
1598 | int maxErr=100; | |
1599 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
1600 | if (clk==1){ | |
1601 | invert=1; | |
1602 | clk=0; | |
1603 | } | |
1604 | if (invert != 0 && invert != 1) { | |
1605 | PrintAndLog("Invalid argument: %s", Cmd); | |
1606 | return 0; | |
1607 | } | |
1608 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
1609 | size_t BitLen = getFromGraphBuf(BitStream); | |
1610 | if (BitLen==0) return 0; | |
1611 | int errCnt=0; | |
6f36848f | 1612 | int clkStartIdx = 0; |
1613 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, &clkStartIdx); | |
e0165dcf | 1614 | if (errCnt > maxErr){ |
1615 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
1616 | return 0; | |
1617 | } | |
2eec55c8 | 1618 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) |
e0165dcf | 1619 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); |
1620 | return 0; | |
1621 | } | |
1622 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
1623 | //prime demod buffer for output | |
1624 | setDemodBuf(BitStream,BitLen,0); | |
1625 | ||
2767fc02 | 1626 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); |
e0165dcf | 1627 | if (verbose || g_debugMode) { |
1628 | PrintAndLog("NRZ demoded bitstream:"); | |
1629 | // Now output the bitstream to the scrollback by line of 16 bits | |
1630 | printDemodBuff(); | |
1631 | } | |
1632 | return 1; | |
b4a2fcf6 | 1633 | } |
1634 | ||
1635 | int CmdNRZrawDemod(const char *Cmd) | |
1636 | { | |
e0165dcf | 1637 | char cmdp = param_getchar(Cmd, 0); |
01d0f8ae | 1638 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1639 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); |
1640 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1641 | PrintAndLog(" <invert>, 1 for invert output"); | |
1642 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1643 | PrintAndLog(""); | |
1644 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
1645 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
1646 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1647 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
1648 | 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"); | |
1649 | return 0; | |
1650 | } | |
7cb8516c | 1651 | return NRZrawDemod(Cmd, true); |
e770c648 | 1652 | } |
1653 | ||
1654 | // by marshmellow | |
1655 | // takes 3 arguments - clock, invert, maxErr as integers | |
04d2721b | 1656 | // attempts to demodulate psk only |
1657 | // prints binary found and saves in demodbuffer for further commands | |
e770c648 | 1658 | int CmdPSK1rawDemod(const char *Cmd) |
4118b74d | 1659 | { |
e0165dcf | 1660 | int ans; |
1661 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 1662 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1663 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); |
1664 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1665 | PrintAndLog(" <invert>, 1 for invert output"); | |
1666 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1667 | PrintAndLog(""); | |
1668 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
1669 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
1670 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
1671 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
1672 | 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"); | |
1673 | return 0; | |
1674 | } | |
7cb8516c | 1675 | ans = PSKDemod(Cmd, true); |
e0165dcf | 1676 | //output |
1677 | if (!ans){ | |
1678 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1679 | return 0; | |
1680 | } | |
7a8a982b | 1681 | |
2767fc02 | 1682 | PrintAndLog("PSK1 demoded bitstream:"); |
e0165dcf | 1683 | // Now output the bitstream to the scrollback by line of 16 bits |
1684 | printDemodBuff(); | |
1685 | return 1; | |
4118b74d | 1686 | } |
1687 | ||
04d2721b | 1688 | // by marshmellow |
19ff0210 | 1689 | // takes same args as cmdpsk1rawdemod |
04d2721b | 1690 | int CmdPSK2rawDemod(const char *Cmd) |
1691 | { | |
e0165dcf | 1692 | int ans=0; |
1693 | char cmdp = param_getchar(Cmd, 0); | |
01d0f8ae | 1694 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { |
e0165dcf | 1695 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); |
1696 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
1697 | PrintAndLog(" <invert>, 1 for invert output"); | |
1698 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
1699 | PrintAndLog(""); | |
1700 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
1701 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
1702 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
1703 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
1704 | 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"); | |
1705 | return 0; | |
1706 | } | |
7cb8516c | 1707 | ans=PSKDemod(Cmd, true); |
e0165dcf | 1708 | if (!ans){ |
1709 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
1710 | return 0; | |
1711 | } | |
1712 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
1713 | PrintAndLog("PSK2 demoded bitstream:"); | |
1714 | // Now output the bitstream to the scrollback by line of 16 bits | |
1715 | printDemodBuff(); | |
1716 | return 1; | |
04d2721b | 1717 | } |
1718 | ||
19ff0210 | 1719 | // by marshmellow - combines all raw demod functions into one menu command |
1720 | int CmdRawDemod(const char *Cmd) | |
1721 | { | |
1722 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
1723 | ||
01d0f8ae | 1724 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { |
19ff0210 | 1725 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); |
b41534d1 | 1726 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); |
1727 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
19ff0210 | 1728 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); |
1729 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
1730 | PrintAndLog(""); | |
1fbf8956 | 1731 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); |
19ff0210 | 1732 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); |
b41534d1 | 1733 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); |
19ff0210 | 1734 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); |
1735 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
1736 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
1737 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
1738 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
1739 | return 0; | |
1740 | } | |
1741 | char cmdp2 = Cmd[1]; | |
1742 | int ans = 0; | |
1743 | if (cmdp == 'f' && cmdp2 == 's'){ | |
f8f894a5 | 1744 | ans = CmdFSKrawdemod(Cmd+2); |
b41534d1 | 1745 | } else if(cmdp == 'a' && cmdp2 == 'b'){ |
f8f894a5 | 1746 | ans = Cmdaskbiphdemod(Cmd+2); |
19ff0210 | 1747 | } else if(cmdp == 'a' && cmdp2 == 'm'){ |
f8f894a5 | 1748 | ans = Cmdaskmandemod(Cmd+2); |
19ff0210 | 1749 | } else if(cmdp == 'a' && cmdp2 == 'r'){ |
f8f894a5 | 1750 | ans = Cmdaskrawdemod(Cmd+2); |
19ff0210 | 1751 | } else if(cmdp == 'n' && cmdp2 == 'r'){ |
f8f894a5 | 1752 | ans = CmdNRZrawDemod(Cmd+2); |
19ff0210 | 1753 | } else if(cmdp == 'p' && cmdp2 == '1'){ |
f8f894a5 | 1754 | ans = CmdPSK1rawDemod(Cmd+2); |
19ff0210 | 1755 | } else if(cmdp == 'p' && cmdp2 == '2'){ |
f8f894a5 | 1756 | ans = CmdPSK2rawDemod(Cmd+2); |
19ff0210 | 1757 | } else { |
1758 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1759 | } | |
1760 | return ans; | |
1761 | } | |
1762 | ||
7fe9b0b7 | 1763 | int CmdGrid(const char *Cmd) |
1764 | { | |
e0165dcf | 1765 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); |
1766 | PlotGridXdefault= PlotGridX; | |
1767 | PlotGridYdefault= PlotGridY; | |
1768 | RepaintGraphWindow(); | |
1769 | return 0; | |
7fe9b0b7 | 1770 | } |
1771 | ||
f9f0e83b | 1772 | int CmdSetGraphMarkers(const char *Cmd) { |
1773 | sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos); | |
1774 | RepaintGraphWindow(); | |
1775 | return 0; | |
1776 | } | |
1777 | ||
7fe9b0b7 | 1778 | int CmdHexsamples(const char *Cmd) |
1779 | { | |
e0165dcf | 1780 | int i, j; |
1781 | int requested = 0; | |
1782 | int offset = 0; | |
1783 | char string_buf[25]; | |
1784 | char* string_ptr = string_buf; | |
1785 | uint8_t got[BIGBUF_SIZE]; | |
1786 | ||
1787 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1788 | ||
1789 | /* if no args send something */ | |
1790 | if (requested == 0) { | |
1791 | requested = 8; | |
1792 | } | |
1793 | if (offset + requested > sizeof(got)) { | |
1794 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1795 | return 0; | |
1796 | } | |
1797 | ||
1798 | GetFromBigBuf(got,requested,offset); | |
1799 | WaitForResponse(CMD_ACK,NULL); | |
1800 | ||
1801 | i = 0; | |
1802 | for (j = 0; j < requested; j++) { | |
1803 | i++; | |
1804 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1805 | if (i == 8) { | |
1806 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1807 | PrintAndLog("%s", string_buf); | |
1808 | string_buf[0] = '\0'; | |
1809 | string_ptr = string_buf; | |
1810 | i = 0; | |
1811 | } | |
1812 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1813 | *(string_ptr - 1) = '\0'; | |
1814 | PrintAndLog("%s", string_buf); | |
1815 | string_buf[0] = '\0'; | |
1816 | } | |
1817 | } | |
1818 | return 0; | |
7fe9b0b7 | 1819 | } |
1820 | ||
7fe9b0b7 | 1821 | int CmdHide(const char *Cmd) |
1822 | { | |
e0165dcf | 1823 | HideGraphWindow(); |
1824 | return 0; | |
7fe9b0b7 | 1825 | } |
1826 | ||
78f5b1a7 | 1827 | //zero mean GraphBuffer |
7fe9b0b7 | 1828 | int CmdHpf(const char *Cmd) |
1829 | { | |
e0165dcf | 1830 | int i; |
1831 | int accum = 0; | |
7fe9b0b7 | 1832 | |
e0165dcf | 1833 | for (i = 10; i < GraphTraceLen; ++i) |
1834 | accum += GraphBuffer[i]; | |
1835 | accum /= (GraphTraceLen - 10); | |
1836 | for (i = 0; i < GraphTraceLen; ++i) | |
1837 | GraphBuffer[i] -= accum; | |
7fe9b0b7 | 1838 | |
e0165dcf | 1839 | RepaintGraphWindow(); |
1840 | return 0; | |
7fe9b0b7 | 1841 | } |
f6d9fb17 | 1842 | |
f6821167 | 1843 | uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b) |
f6d9fb17 MHS |
1844 | { |
1845 | int i; | |
1846 | uint8_t val = 0; | |
1847 | for(i =0 ; i < bits_per_sample; i++) | |
1848 | { | |
f6821167 | 1849 | val |= (headBit(b) << (7-i)); |
f6d9fb17 MHS |
1850 | } |
1851 | return val; | |
1852 | } | |
7fe9b0b7 | 1853 | |
1fbf8956 | 1854 | int getSamples(const char *Cmd, bool silent) |
7fe9b0b7 | 1855 | { |
e0165dcf | 1856 | //If we get all but the last byte in bigbuf, |
1857 | // we don't have to worry about remaining trash | |
1858 | // in the last byte in case the bits-per-sample | |
1859 | // does not line up on byte boundaries | |
1860 | ||
1861 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1862 | ||
1863 | int n = strtol(Cmd, NULL, 0); | |
1864 | ||
709665b5 | 1865 | if (n == 0 || n > sizeof(got)) |
e0165dcf | 1866 | n = sizeof(got); |
1867 | ||
1868 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
1869 | GetFromBigBuf(got,n,0); | |
1870 | PrintAndLog("Data fetched"); | |
1871 | UsbCommand response; | |
1872 | WaitForResponse(CMD_ACK, &response); | |
1873 | uint8_t bits_per_sample = 8; | |
1874 | ||
1875 | //Old devices without this feature would send 0 at arg[0] | |
1876 | if(response.arg[0] > 0) | |
1877 | { | |
1878 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1879 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1880 | , sc->decimation); | |
1881 | bits_per_sample = sc->bits_per_sample; | |
1882 | } | |
1883 | if(bits_per_sample < 8) | |
1884 | { | |
1885 | PrintAndLog("Unpacking..."); | |
f6821167 | 1886 | BitstreamIn bout = { got, bits_per_sample * n, 0}; |
e0165dcf | 1887 | int j =0; |
e6432f05 | 1888 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { |
e0165dcf | 1889 | uint8_t sample = getByte(bits_per_sample, &bout); |
1890 | GraphBuffer[j] = ((int) sample )- 128; | |
1891 | } | |
1892 | GraphTraceLen = j; | |
1893 | PrintAndLog("Unpacked %d samples" , j ); | |
1894 | }else | |
1895 | { | |
1896 | for (int j = 0; j < n; j++) { | |
1897 | GraphBuffer[j] = ((int)got[j]) - 128; | |
1898 | } | |
1899 | GraphTraceLen = n; | |
1900 | } | |
1901 | ||
1902 | RepaintGraphWindow(); | |
1903 | return 0; | |
1fbf8956 | 1904 | } |
1905 | ||
1906 | int CmdSamples(const char *Cmd) | |
1907 | { | |
e0165dcf | 1908 | return getSamples(Cmd, false); |
7fe9b0b7 | 1909 | } |
1910 | ||
d6a120a2 MHS |
1911 | int CmdTuneSamples(const char *Cmd) |
1912 | { | |
fdcfbdcc RAB |
1913 | int timeout = 0, arg = FLAG_TUNE_ALL; |
1914 | ||
1915 | if(*Cmd == 'l') { | |
1916 | arg = FLAG_TUNE_LF; | |
1917 | } else if (*Cmd == 'h') { | |
1918 | arg = FLAG_TUNE_HF; | |
1919 | } else if (*Cmd != '\0') { | |
1920 | PrintAndLog("use 'tune' or 'tune l' or 'tune h'"); | |
1921 | return 0; | |
1922 | } | |
1923 | ||
3aa4014b | 1924 | printf("\nMeasuring antenna characteristics, please wait..."); |
ba1a299c | 1925 | |
fdcfbdcc | 1926 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}}; |
3aa4014b | 1927 | SendCommand(&c); |
1928 | ||
1929 | UsbCommand resp; | |
1930 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1931 | timeout++; | |
1932 | printf("."); | |
1933 | if (timeout > 7) { | |
1934 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1935 | return 1; | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | int peakv, peakf; | |
1940 | int vLf125, vLf134, vHf; | |
1941 | vLf125 = resp.arg[0] & 0xffff; | |
1942 | vLf134 = resp.arg[0] >> 16; | |
1943 | vHf = resp.arg[1] & 0xffff;; | |
1944 | peakf = resp.arg[2] & 0xffff; | |
1945 | peakv = resp.arg[2] >> 16; | |
1946 | PrintAndLog(""); | |
1947 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1948 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1949 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1950 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
0d0d0499 | 1951 | |
2767fc02 | 1952 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. |
1953 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
1954 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1955 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
0d0d0499 | 1956 | |
1957 | if (peakv < LF_UNUSABLE_V) | |
3aa4014b | 1958 | PrintAndLog("# Your LF antenna is unusable."); |
0d0d0499 | 1959 | else if (peakv < LF_MARGINAL_V) |
3aa4014b | 1960 | PrintAndLog("# Your LF antenna is marginal."); |
0d0d0499 | 1961 | if (vHf < HF_UNUSABLE_V) |
3aa4014b | 1962 | PrintAndLog("# Your HF antenna is unusable."); |
0d0d0499 | 1963 | else if (vHf < HF_MARGINAL_V) |
3aa4014b | 1964 | PrintAndLog("# Your HF antenna is marginal."); |
1965 | ||
0d0d0499 | 1966 | if (peakv >= LF_UNUSABLE_V) { |
1967 | for (int i = 0; i < 256; i++) { | |
1968 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
1969 | } | |
1970 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
1971 | PrintAndLog("\n"); | |
1972 | GraphTraceLen = 256; | |
1973 | ShowGraphWindow(); | |
abd16c45 | 1974 | RepaintGraphWindow(); |
ba1a299c | 1975 | } |
1976 | ||
b4fb11ba | 1977 | return 0; |
d6a120a2 MHS |
1978 | } |
1979 | ||
3aa4014b | 1980 | |
7fe9b0b7 | 1981 | int CmdLoad(const char *Cmd) |
1982 | { | |
e0165dcf | 1983 | char filename[FILE_PATH_SIZE] = {0x00}; |
1984 | int len = 0; | |
b915fda3 | 1985 | |
e0165dcf | 1986 | len = strlen(Cmd); |
1987 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1988 | memcpy(filename, Cmd, len); | |
b915fda3 | 1989 | |
e0165dcf | 1990 | FILE *f = fopen(filename, "r"); |
1991 | if (!f) { | |
1992 | PrintAndLog("couldn't open '%s'", filename); | |
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | GraphTraceLen = 0; | |
1997 | char line[80]; | |
1998 | while (fgets(line, sizeof (line), f)) { | |
1999 | GraphBuffer[GraphTraceLen] = atoi(line); | |
2000 | GraphTraceLen++; | |
2001 | } | |
2002 | fclose(f); | |
2003 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
2004 | RepaintGraphWindow(); | |
2005 | return 0; | |
7fe9b0b7 | 2006 | } |
2007 | ||
2008 | int CmdLtrim(const char *Cmd) | |
2009 | { | |
e0165dcf | 2010 | int ds = atoi(Cmd); |
cc15a118 | 2011 | if (GraphTraceLen<=0) return 0; |
e0165dcf | 2012 | for (int i = ds; i < GraphTraceLen; ++i) |
2013 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
2014 | GraphTraceLen -= ds; | |
7fe9b0b7 | 2015 | |
e0165dcf | 2016 | RepaintGraphWindow(); |
2017 | return 0; | |
7fe9b0b7 | 2018 | } |
ec75f5c1 | 2019 | |
2020 | // trim graph to input argument length | |
9ec1416a | 2021 | int CmdRtrim(const char *Cmd) |
2022 | { | |
e0165dcf | 2023 | int ds = atoi(Cmd); |
9ec1416a | 2024 | |
e0165dcf | 2025 | GraphTraceLen = ds; |
9ec1416a | 2026 | |
e0165dcf | 2027 | RepaintGraphWindow(); |
2028 | return 0; | |
9ec1416a | 2029 | } |
7fe9b0b7 | 2030 | |
f75b313b | 2031 | // trim graph (middle) piece |
2032 | int CmdMtrim(const char *Cmd) { | |
2033 | int start = 0, stop = 0; | |
2034 | sscanf(Cmd, "%i %i", &start, &stop); | |
2035 | ||
2036 | if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0; | |
2037 | start++; //leave start position sample | |
2038 | ||
2039 | GraphTraceLen -= stop - start; | |
2040 | for (int i = 0; i < GraphTraceLen; i++) { | |
2041 | GraphBuffer[start+i] = GraphBuffer[stop+i]; | |
2042 | } | |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | ||
7fe9b0b7 | 2047 | int CmdNorm(const char *Cmd) |
2048 | { | |
e0165dcf | 2049 | int i; |
2050 | int max = INT_MIN, min = INT_MAX; | |
7fe9b0b7 | 2051 | |
e0165dcf | 2052 | for (i = 10; i < GraphTraceLen; ++i) { |
2053 | if (GraphBuffer[i] > max) | |
2054 | max = GraphBuffer[i]; | |
2055 | if (GraphBuffer[i] < min) | |
2056 | min = GraphBuffer[i]; | |
2057 | } | |
7fe9b0b7 | 2058 | |
e0165dcf | 2059 | if (max != min) { |
2060 | for (i = 0; i < GraphTraceLen; ++i) { | |
ba1a299c | 2061 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / |
e0165dcf | 2062 | (max - min); |
ba1a299c | 2063 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work |
e0165dcf | 2064 | } |
2065 | } | |
2066 | RepaintGraphWindow(); | |
2067 | return 0; | |
7fe9b0b7 | 2068 | } |
2069 | ||
2070 | int CmdPlot(const char *Cmd) | |
2071 | { | |
e0165dcf | 2072 | ShowGraphWindow(); |
2073 | return 0; | |
7fe9b0b7 | 2074 | } |
2075 | ||
2076 | int CmdSave(const char *Cmd) | |
2077 | { | |
e0165dcf | 2078 | char filename[FILE_PATH_SIZE] = {0x00}; |
2079 | int len = 0; | |
b915fda3 | 2080 | |
e0165dcf | 2081 | len = strlen(Cmd); |
2082 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
2083 | memcpy(filename, Cmd, len); | |
2084 | ||
b915fda3 | 2085 | |
e0165dcf | 2086 | FILE *f = fopen(filename, "w"); |
2087 | if(!f) { | |
2088 | PrintAndLog("couldn't open '%s'", filename); | |
2089 | return 0; | |
2090 | } | |
2091 | int i; | |
2092 | for (i = 0; i < GraphTraceLen; i++) { | |
2093 | fprintf(f, "%d\n", GraphBuffer[i]); | |
2094 | } | |
2095 | fclose(f); | |
2096 | PrintAndLog("saved to '%s'", Cmd); | |
2097 | return 0; | |
7fe9b0b7 | 2098 | } |
2099 | ||
2100 | int CmdScale(const char *Cmd) | |
2101 | { | |
e0165dcf | 2102 | CursorScaleFactor = atoi(Cmd); |
2103 | if (CursorScaleFactor == 0) { | |
2104 | PrintAndLog("bad, can't have zero scale"); | |
2105 | CursorScaleFactor = 1; | |
2106 | } | |
2107 | RepaintGraphWindow(); | |
2108 | return 0; | |
7fe9b0b7 | 2109 | } |
2110 | ||
d51b2eda MHS |
2111 | int CmdDirectionalThreshold(const char *Cmd) |
2112 | { | |
e0165dcf | 2113 | int8_t upThres = param_get8(Cmd, 0); |
2114 | int8_t downThres = param_get8(Cmd, 1); | |
2115 | ||
2116 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
2117 | ||
2118 | int lastValue = GraphBuffer[0]; | |
2119 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
2120 | ||
2121 | for (int i = 1; i < GraphTraceLen; ++i) { | |
2122 | // Apply first threshold to samples heading up | |
2123 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
2124 | { | |
2125 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 2126 | GraphBuffer[i] = 127; |
e0165dcf | 2127 | } |
2128 | // Apply second threshold to samples heading down | |
2129 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
2130 | { | |
2131 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
127f1490 | 2132 | GraphBuffer[i] = -127; |
e0165dcf | 2133 | } |
2134 | else | |
2135 | { | |
2136 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
2137 | GraphBuffer[i] = GraphBuffer[i-1]; | |
2138 | ||
2139 | } | |
2140 | } | |
2141 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
2142 | RepaintGraphWindow(); | |
2143 | return 0; | |
d51b2eda MHS |
2144 | } |
2145 | ||
7fe9b0b7 | 2146 | int CmdZerocrossings(const char *Cmd) |
2147 | { | |
e0165dcf | 2148 | // Zero-crossings aren't meaningful unless the signal is zero-mean. |
2149 | CmdHpf(""); | |
2150 | ||
2151 | int sign = 1; | |
2152 | int zc = 0; | |
2153 | int lastZc = 0; | |
2154 | ||
2155 | for (int i = 0; i < GraphTraceLen; ++i) { | |
2156 | if (GraphBuffer[i] * sign >= 0) { | |
2157 | // No change in sign, reproduce the previous sample count. | |
2158 | zc++; | |
2159 | GraphBuffer[i] = lastZc; | |
2160 | } else { | |
2161 | // Change in sign, reset the sample count. | |
2162 | sign = -sign; | |
2163 | GraphBuffer[i] = lastZc; | |
2164 | if (sign > 0) { | |
2165 | lastZc = zc; | |
2166 | zc = 0; | |
2167 | } | |
2168 | } | |
2169 | } | |
2170 | ||
2171 | RepaintGraphWindow(); | |
2172 | return 0; | |
7fe9b0b7 | 2173 | } |
2174 | ||
f6821167 MHS |
2175 | int usage_data_bin2hex(){ |
2176 | PrintAndLog("Usage: data bin2hex <binary_digits>"); | |
2177 | PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)"); | |
2178 | return 0; | |
2179 | } | |
2180 | ||
2181 | /** | |
2182 | * @brief Utility for conversion via cmdline. | |
2183 | * @param Cmd | |
2184 | * @return | |
2185 | */ | |
2186 | int Cmdbin2hex(const char *Cmd) | |
2187 | { | |
2188 | int bg =0, en =0; | |
2189 | if(param_getptr(Cmd, &bg, &en, 0)) | |
2190 | { | |
2191 | return usage_data_bin2hex(); | |
2192 | } | |
2193 | //Number of digits supplied as argument | |
2194 | size_t length = en - bg +1; | |
2195 | size_t bytelen = (length+7) / 8; | |
2196 | uint8_t* arr = (uint8_t *) malloc(bytelen); | |
2197 | memset(arr, 0, bytelen); | |
2198 | BitstreamOut bout = { arr, 0, 0 }; | |
2199 | ||
2200 | for(; bg <= en ;bg++) | |
2201 | { | |
2202 | char c = Cmd[bg]; | |
2203 | if( c == '1') pushBit(&bout, 1); | |
2204 | else if( c == '0') pushBit(&bout, 0); | |
2205 | else PrintAndLog("Ignoring '%c'", c); | |
2206 | } | |
2207 | ||
2208 | if(bout.numbits % 8 != 0) | |
2209 | { | |
2210 | printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8)); | |
2211 | } | |
2212 | ||
2213 | //Uses printf instead of PrintAndLog since the latter | |
2214 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
2215 | // allocate a string and write to that first... | |
2216 | for(size_t x = 0; x < bytelen ; x++) | |
2217 | { | |
2218 | printf("%02X", arr[x]); | |
2219 | } | |
2220 | printf("\n"); | |
2221 | free(arr); | |
2222 | return 0; | |
2223 | } | |
2224 | ||
72c5877a | 2225 | int usage_data_hex2bin() { |
2226 | PrintAndLog("Usage: data hex2bin <hex_digits>"); | |
f6821167 MHS |
2227 | PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)"); |
2228 | return 0; | |
2229 | ||
2230 | } | |
2231 | ||
2232 | int Cmdhex2bin(const char *Cmd) | |
2233 | { | |
2234 | int bg =0, en =0; | |
2235 | if(param_getptr(Cmd, &bg, &en, 0)) | |
2236 | { | |
2237 | return usage_data_hex2bin(); | |
2238 | } | |
2239 | ||
2240 | ||
2241 | while(bg <= en ) | |
2242 | { | |
2243 | char x = Cmd[bg++]; | |
2244 | // capitalize | |
2245 | if (x >= 'a' && x <= 'f') | |
2246 | x -= 32; | |
2247 | // convert to numeric value | |
2248 | if (x >= '0' && x <= '9') | |
2249 | x -= '0'; | |
2250 | else if (x >= 'A' && x <= 'F') | |
2251 | x -= 'A' - 10; | |
2252 | else | |
2253 | continue; | |
2254 | ||
2255 | //Uses printf instead of PrintAndLog since the latter | |
2256 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
2257 | // allocate a string and write to that first... | |
2258 | ||
2259 | for(int i= 0 ; i < 4 ; ++i) | |
2260 | printf("%d",(x >> (3 - i)) & 1); | |
2261 | } | |
2262 | printf("\n"); | |
2263 | ||
2264 | return 0; | |
2265 | } | |
2266 | ||
ba1a299c | 2267 | static command_t CommandTable[] = |
7fe9b0b7 | 2268 | { |
e0165dcf | 2269 | {"help", CmdHelp, 1, "This help"}, |
49bbc60a | 2270 | {"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 | 2271 | {"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"}, |
415274a7 | 2272 | {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"}, |
e0165dcf | 2273 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, |
fef74fdc | 2274 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, |
5d01f50a | 2275 | {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"}, |
e0165dcf | 2276 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, |
e0165dcf | 2277 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, |
2278 | {"dec", CmdDec, 1, "Decimate samples"}, | |
2279 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
b2c330b3 | 2280 | {"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"}, |
e0165dcf | 2281 | {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"}, |
2282 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
2283 | {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"}, | |
2284 | {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate an IO Prox FSK tag from GraphBuffer"}, | |
2285 | {"fskpyramiddemod", CmdFSKdemodPyramid, 1, "Demodulate a Pyramid FSK tag from GraphBuffer"}, | |
2286 | {"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"}, | |
2287 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
2288 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
2289 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
f6821167 | 2290 | {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"}, |
e0165dcf | 2291 | {"hide", CmdHide, 1, "Hide graph window"}, |
2292 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
2293 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
2294 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
2295 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
f75b313b | 2296 | {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"}, |
fef74fdc | 2297 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, |
e0165dcf | 2298 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, |
2299 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
ace26dbd | 2300 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"}, |
e0165dcf | 2301 | {"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"}, |
411105e0 | 2302 | {"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"}, |
e0165dcf | 2303 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, |
2304 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
2305 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
f9f0e83b | 2306 | {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"}, |
e0165dcf | 2307 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, |
709665b5 | 2308 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"}, |
e0165dcf | 2309 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, |
e0165dcf | 2310 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, |
2311 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
2312 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
2313 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
2314 | {NULL, NULL, 0, NULL} | |
7fe9b0b7 | 2315 | }; |
2316 | ||
2317 | int CmdData(const char *Cmd) | |
2318 | { | |
e0165dcf | 2319 | CmdsParse(CommandTable, Cmd); |
2320 | return 0; | |
7fe9b0b7 | 2321 | } |
2322 | ||
2323 | int CmdHelp(const char *Cmd) | |
2324 | { | |
e0165dcf | 2325 | CmdsHelp(CommandTable); |
2326 | return 0; | |
7fe9b0b7 | 2327 | } |