]>
Commit | Line | Data |
---|---|---|
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 | ||
11 | #include <stdio.h> // also included in util.h | |
12 | #include <string.h> // also included in util.h | |
13 | #include <inttypes.h> | |
14 | #include <limits.h> // for CmdNorm INT_MIN && INT_MAX | |
15 | #include "data.h" // also included in util.h | |
16 | #include "cmddata.h" | |
17 | #include "util.h" | |
18 | #include "cmdmain.h" | |
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 "loclass/cipherutils.h" // for decimating samples in getsamples | |
26 | #include "cmdlfem4x.h"// for em410x demod | |
27 | ||
28 | uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; | |
29 | uint8_t g_debugMode=0; | |
30 | size_t DemodBufferLen=0; | |
31 | //size_t g_demodStartIdx=0; | |
32 | //uint8_t g_demodClock=0; | |
33 | ||
34 | static int CmdHelp(const char *Cmd); | |
35 | ||
36 | //set the demod buffer with given array of binary (one bit per byte) | |
37 | //by marshmellow | |
38 | void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) | |
39 | { | |
40 | if (buff == NULL) | |
41 | return; | |
42 | ||
43 | if ( size >= MAX_DEMOD_BUF_LEN) | |
44 | size = MAX_DEMOD_BUF_LEN; | |
45 | ||
46 | size_t i = 0; | |
47 | for (; i < size; i++){ | |
48 | DemodBuffer[i]=buff[startIdx++]; | |
49 | } | |
50 | DemodBufferLen=size; | |
51 | return; | |
52 | } | |
53 | ||
54 | int CmdSetDebugMode(const char *Cmd) | |
55 | { | |
56 | int demod=0; | |
57 | sscanf(Cmd, "%i", &demod); | |
58 | g_debugMode=(uint8_t)demod; | |
59 | return 1; | |
60 | } | |
61 | ||
62 | int usage_data_printdemodbuf(){ | |
63 | PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>"); | |
64 | PrintAndLog("Options: "); | |
65 | PrintAndLog(" h This help"); | |
66 | PrintAndLog(" x output in hex (omit for binary output)"); | |
67 | PrintAndLog(" o <offset> enter offset in # of bits"); | |
68 | PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively"); | |
69 | return 0; | |
70 | } | |
71 | ||
72 | //by marshmellow | |
73 | void printDemodBuff(void) | |
74 | { | |
75 | int bitLen = DemodBufferLen; | |
76 | if (bitLen<1) { | |
77 | PrintAndLog("no bits found in demod buffer"); | |
78 | return; | |
79 | } | |
80 | if (bitLen>512) bitLen=512; //max output to 512 bits if we have more - should be plenty | |
81 | ||
82 | char *bin = sprint_bin_break(DemodBuffer,bitLen,16); | |
83 | PrintAndLog("%s",bin); | |
84 | ||
85 | return; | |
86 | } | |
87 | ||
88 | int CmdPrintDemodBuff(const char *Cmd) | |
89 | { | |
90 | char hex[512]={0x00}; | |
91 | bool hexMode = false; | |
92 | bool errors = false; | |
93 | uint32_t offset = 0; //could be size_t but no param_get16... | |
94 | uint32_t length = 512; | |
95 | char cmdp = 0; | |
96 | while(param_getchar(Cmd, cmdp) != 0x00) | |
97 | { | |
98 | switch(param_getchar(Cmd, cmdp)) | |
99 | { | |
100 | case 'h': | |
101 | case 'H': | |
102 | return usage_data_printdemodbuf(); | |
103 | case 'x': | |
104 | case 'X': | |
105 | hexMode = true; | |
106 | cmdp++; | |
107 | break; | |
108 | case 'o': | |
109 | case 'O': | |
110 | offset = param_get32ex(Cmd, cmdp+1, 0, 10); | |
111 | if (!offset) errors = true; | |
112 | cmdp += 2; | |
113 | break; | |
114 | case 'l': | |
115 | case 'L': | |
116 | length = param_get32ex(Cmd, cmdp+1, 512, 10); | |
117 | if (!length) errors = true; | |
118 | cmdp += 2; | |
119 | break; | |
120 | default: | |
121 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
122 | errors = true; | |
123 | break; | |
124 | } | |
125 | if(errors) break; | |
126 | } | |
127 | //Validations | |
128 | if(errors) return usage_data_printdemodbuf(); | |
129 | length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length; | |
130 | int numBits = (length) & 0x00FFC; //make sure we don't exceed our string | |
131 | ||
132 | if (hexMode){ | |
133 | char *buf = (char *) (DemodBuffer + offset); | |
134 | numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits; | |
135 | numBits = binarraytohex(hex, buf, numBits); | |
136 | if (numBits==0) return 0; | |
137 | PrintAndLog("DemodBuffer: %s",hex); | |
138 | } else { | |
139 | PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16)); | |
140 | } | |
141 | return 1; | |
142 | } | |
143 | ||
144 | //by marshmellow | |
145 | //this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer | |
146 | int CmdGetBitStream(const char *Cmd) | |
147 | { | |
148 | int i; | |
149 | CmdHpf(Cmd); | |
150 | for (i = 0; i < GraphTraceLen; i++) { | |
151 | if (GraphBuffer[i] >= 1) { | |
152 | GraphBuffer[i] = 1; | |
153 | } else { | |
154 | GraphBuffer[i] = 0; | |
155 | } | |
156 | } | |
157 | RepaintGraphWindow(); | |
158 | return 0; | |
159 | } | |
160 | ||
161 | //by marshmellow | |
162 | //Cmd Args: Clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
163 | // (amp may not be needed anymore) | |
164 | //verbose will print results and demoding messages | |
165 | //emSearch will auto search for EM410x format in bitstream | |
166 | //askType switches decode: ask/raw = 0, ask/manchester = 1 | |
167 | int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) { | |
168 | int invert=0; | |
169 | int clk=0; | |
170 | int maxErr=100; | |
171 | int maxLen=0; | |
172 | uint8_t askamp = 0; | |
173 | char amp = param_getchar(Cmd, 0); | |
174 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
175 | sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &); | |
176 | if (!maxLen) maxLen = BIGBUF_SIZE; | |
177 | if (invert != 0 && invert != 1) { | |
178 | PrintAndLog("Invalid argument: %s", Cmd); | |
179 | return 0; | |
180 | } | |
181 | if (clk==1){ | |
182 | invert=1; | |
183 | clk=0; | |
184 | } | |
185 | size_t BitLen = getFromGraphBuf(BitStream); | |
186 | if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); | |
187 | if (BitLen < 255) return 0; | |
188 | if (maxLen < BitLen && maxLen != 0) BitLen = maxLen; | |
189 | int foundclk = 0; | |
190 | //amp before ST check | |
191 | if (amp == 'a' || amp == 'A') { | |
192 | askAmp(BitStream, BitLen); | |
193 | } | |
194 | bool st = false; | |
195 | size_t ststart = 0, stend = 0; | |
196 | if (*stCheck) st = DetectST_ext(BitStream, &BitLen, &foundclk, &ststart, &stend); | |
197 | if (st) { | |
198 | *stCheck = st; | |
199 | clk = (clk == 0) ? foundclk : clk; | |
200 | CursorCPos = ststart; | |
201 | CursorDPos = stend; | |
202 | if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator - First one is shown by orange and blue graph markers"); | |
203 | } | |
204 | int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askamp, askType); | |
205 | if (errCnt<0 || BitLen<16){ //if fatal error (or -1) | |
206 | if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); | |
207 | return 0; | |
208 | } | |
209 | if (errCnt > maxErr){ | |
210 | if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk); | |
211 | return 0; | |
212 | } | |
213 | if (verbose || g_debugMode) PrintAndLog("\nUsing Clock:%d, Invert:%d, Bits Found:%d",clk,invert,BitLen); | |
214 | ||
215 | //output | |
216 | setDemodBuf(BitStream,BitLen,0); | |
217 | if (verbose || g_debugMode){ | |
218 | if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
219 | if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk); | |
220 | else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk); | |
221 | // Now output the bitstream to the scrollback by line of 16 bits | |
222 | printDemodBuff(); | |
223 | ||
224 | } | |
225 | uint64_t lo = 0; | |
226 | uint32_t hi = 0; | |
227 | if (emSearch){ | |
228 | AskEm410xDecode(true, &hi, &lo); | |
229 | } | |
230 | return 1; | |
231 | } | |
232 | int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) { | |
233 | bool st = false; | |
234 | return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st); | |
235 | } | |
236 | ||
237 | //by marshmellow | |
238 | //takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a' | |
239 | //attempts to demodulate ask while decoding manchester | |
240 | //prints binary found and saves in graphbuffer for further commands | |
241 | int Cmdaskmandemod(const char *Cmd) | |
242 | { | |
243 | char cmdp = param_getchar(Cmd, 0); | |
244 | if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') { | |
245 | PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]"); | |
246 | PrintAndLog(" ['s'] optional, check for Sequence Terminator"); | |
247 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
248 | PrintAndLog(" <invert>, 1 to invert output"); | |
249 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
250 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
251 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
252 | PrintAndLog(""); | |
253 | PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer"); | |
254 | PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32"); | |
255 | PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
256 | PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data"); | |
257 | 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"); | |
258 | return 0; | |
259 | } | |
260 | bool st = true; | |
261 | if (Cmd[0]=='s') | |
262 | return ASKDemod_ext(Cmd++, true, true, 1, &st); | |
263 | else if (Cmd[1] == 's') | |
264 | return ASKDemod_ext(Cmd+=2, true, true, 1, &st); | |
265 | else | |
266 | return ASKDemod(Cmd, true, true, 1); | |
267 | } | |
268 | ||
269 | //by marshmellow | |
270 | //manchester decode | |
271 | //stricktly take 10 and 01 and convert to 0 and 1 | |
272 | int Cmdmandecoderaw(const char *Cmd) | |
273 | { | |
274 | int i =0; | |
275 | int errCnt=0; | |
276 | size_t size=0; | |
277 | int invert=0; | |
278 | int maxErr = 20; | |
279 | char cmdp = param_getchar(Cmd, 0); | |
280 | if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') { | |
281 | PrintAndLog("Usage: data manrawdecode [invert] [maxErr]"); | |
282 | PrintAndLog(" Takes 10 and 01 and converts to 0 and 1 respectively"); | |
283 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
284 | PrintAndLog(" [invert] invert output"); | |
285 | PrintAndLog(" [maxErr] set number of errors allowed (default = 20)"); | |
286 | PrintAndLog(""); | |
287 | PrintAndLog(" sample: data manrawdecode = decode manchester bitstream from the demodbuffer"); | |
288 | return 0; | |
289 | } | |
290 | if (DemodBufferLen==0) return 0; | |
291 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
292 | int high=0,low=0; | |
293 | for (;i<DemodBufferLen;++i){ | |
294 | if (DemodBuffer[i]>high) high=DemodBuffer[i]; | |
295 | else if(DemodBuffer[i]<low) low=DemodBuffer[i]; | |
296 | BitStream[i]=DemodBuffer[i]; | |
297 | } | |
298 | if (high>7 || low <0 ){ | |
299 | PrintAndLog("Error: please raw demod the wave first then manchester raw decode"); | |
300 | return 0; | |
301 | } | |
302 | ||
303 | sscanf(Cmd, "%i %i", &invert, &maxErr); | |
304 | size=i; | |
305 | uint8_t alignPos = 0; | |
306 | errCnt=manrawdecode(BitStream, &size, invert, &alignPos); | |
307 | if (errCnt>=maxErr){ | |
308 | PrintAndLog("Too many errors: %d",errCnt); | |
309 | return 0; | |
310 | } | |
311 | PrintAndLog("Manchester Decoded - # errors:%d - data:",errCnt); | |
312 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); | |
313 | if (errCnt==0){ | |
314 | uint64_t id = 0; | |
315 | uint32_t hi = 0; | |
316 | size_t idx=0; | |
317 | if (Em410xDecode(BitStream, &size, &idx, &hi, &id)){ | |
318 | //need to adjust to set bitstream back to manchester encoded data | |
319 | //setDemodBuf(BitStream, size, idx); | |
320 | ||
321 | printEM410x(hi, id); | |
322 | } | |
323 | } | |
324 | return 1; | |
325 | } | |
326 | ||
327 | //by marshmellow | |
328 | //biphase decode | |
329 | //take 01 or 10 = 0 and 11 or 00 = 1 | |
330 | //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit | |
331 | // and "invert" default = 0 if 1 it will invert output | |
332 | // the argument offset allows us to manually shift if the output is incorrect - [EDIT: now auto detects] | |
333 | int CmdBiphaseDecodeRaw(const char *Cmd) | |
334 | { | |
335 | size_t size=0; | |
336 | int offset=0, invert=0, maxErr=20, errCnt=0; | |
337 | char cmdp = param_getchar(Cmd, 0); | |
338 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { | |
339 | PrintAndLog("Usage: data biphaserawdecode [offset] [invert] [maxErr]"); | |
340 | PrintAndLog(" Converts 10 or 01 to 1 and 11 or 00 to 0"); | |
341 | PrintAndLog(" --must have binary sequence in demodbuffer (run data askrawdemod first)"); | |
342 | PrintAndLog(" --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
343 | PrintAndLog(""); | |
344 | PrintAndLog(" [offset <0|1>], set to 0 not to adjust start position or to 1 to adjust decode start position"); | |
345 | PrintAndLog(" [invert <0|1>], set to 1 to invert output"); | |
346 | PrintAndLog(" [maxErr int], set max errors tolerated - default=20"); | |
347 | PrintAndLog(""); | |
348 | PrintAndLog(" sample: data biphaserawdecode = decode biphase bitstream from the demodbuffer"); | |
349 | PrintAndLog(" sample: data biphaserawdecode 1 1 = decode biphase bitstream from the demodbuffer, set offset, and invert output"); | |
350 | return 0; | |
351 | } | |
352 | sscanf(Cmd, "%i %i %i", &offset, &invert, &maxErr); | |
353 | if (DemodBufferLen==0){ | |
354 | PrintAndLog("DemodBuffer Empty - run 'data rawdemod ar' first"); | |
355 | return 0; | |
356 | } | |
357 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
358 | memcpy(BitStream, DemodBuffer, DemodBufferLen); | |
359 | size = DemodBufferLen; | |
360 | errCnt=BiphaseRawDecode(BitStream, &size, offset, invert); | |
361 | if (errCnt<0){ | |
362 | PrintAndLog("Error during decode:%d", errCnt); | |
363 | return 0; | |
364 | } | |
365 | if (errCnt>maxErr){ | |
366 | PrintAndLog("Too many errors attempting to decode: %d",errCnt); | |
367 | return 0; | |
368 | } | |
369 | ||
370 | if (errCnt>0){ | |
371 | PrintAndLog("# Errors found during Demod (shown as 7 in bit stream): %d",errCnt); | |
372 | } | |
373 | PrintAndLog("Biphase Decoded using offset: %d - # invert:%d - data:",offset,invert); | |
374 | PrintAndLog("%s", sprint_bin_break(BitStream, size, 16)); | |
375 | ||
376 | if (offset) setDemodBuf(DemodBuffer,DemodBufferLen-offset, offset); //remove first bit from raw demod | |
377 | return 1; | |
378 | } | |
379 | ||
380 | //by marshmellow | |
381 | // - ASK Demod then Biphase decode GraphBuffer samples | |
382 | int ASKbiphaseDemod(const char *Cmd, bool verbose) | |
383 | { | |
384 | //ask raw demod GraphBuffer first | |
385 | int offset=0, clk=0, invert=0, maxErr=0; | |
386 | sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr); | |
387 | ||
388 | uint8_t BitStream[MAX_DEMOD_BUF_LEN]; | |
389 | size_t size = getFromGraphBuf(BitStream); | |
390 | //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer | |
391 | int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0); | |
392 | if ( errCnt < 0 || errCnt > maxErr ) { | |
393 | if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk); | |
394 | return 0; | |
395 | } | |
396 | ||
397 | //attempt to Biphase decode BitStream | |
398 | errCnt = BiphaseRawDecode(BitStream, &size, offset, invert); | |
399 | if (errCnt < 0){ | |
400 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt); | |
401 | return 0; | |
402 | } | |
403 | if (errCnt > maxErr) { | |
404 | if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode too many errors: %d", errCnt); | |
405 | return 0; | |
406 | } | |
407 | //success set DemodBuffer and return | |
408 | setDemodBuf(BitStream, size, 0); | |
409 | if (g_debugMode || verbose){ | |
410 | PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt); | |
411 | printDemodBuff(); | |
412 | } | |
413 | return 1; | |
414 | } | |
415 | //by marshmellow - see ASKbiphaseDemod | |
416 | int Cmdaskbiphdemod(const char *Cmd) | |
417 | { | |
418 | char cmdp = param_getchar(Cmd, 0); | |
419 | if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') { | |
420 | PrintAndLog("Usage: data rawdemod ab [offset] [clock] <invert> [maxError] [maxLen] <amplify>"); | |
421 | PrintAndLog(" [offset], offset to begin biphase, default=0"); | |
422 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
423 | PrintAndLog(" <invert>, 1 to invert output"); | |
424 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
425 | PrintAndLog(" [set maximum Samples to read], default = 32768 (512 bits at rf/64)"); | |
426 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
427 | PrintAndLog(" NOTE: <invert> can be entered as second or third argument"); | |
428 | PrintAndLog(" NOTE: <amplify> can be entered as first, second or last argument"); | |
429 | PrintAndLog(" NOTE: any other arg must have previous args set to work"); | |
430 | PrintAndLog(""); | |
431 | PrintAndLog(" NOTE: --invert for Conditional Dephase Encoding (CDP) AKA Differential Manchester"); | |
432 | PrintAndLog(""); | |
433 | PrintAndLog(" sample: data rawdemod ab = demod an ask/biph tag from GraphBuffer"); | |
434 | PrintAndLog(" : data rawdemod ab 0 a = demod an ask/biph tag from GraphBuffer, amplified"); | |
435 | PrintAndLog(" : data rawdemod ab 1 32 = demod an ask/biph tag from GraphBuffer using an offset of 1 and a clock of RF/32"); | |
436 | PrintAndLog(" : data rawdemod ab 0 32 1 = demod an ask/biph tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
437 | PrintAndLog(" : data rawdemod ab 0 1 = demod an ask/biph tag from GraphBuffer while inverting data"); | |
438 | 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"); | |
439 | 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"); | |
440 | return 0; | |
441 | } | |
442 | return ASKbiphaseDemod(Cmd, true); | |
443 | } | |
444 | ||
445 | //by marshmellow - see ASKDemod | |
446 | int Cmdaskrawdemod(const char *Cmd) | |
447 | { | |
448 | char cmdp = param_getchar(Cmd, 0); | |
449 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H') { | |
450 | PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [maxLen] [amplify]"); | |
451 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect"); | |
452 | PrintAndLog(" <invert>, 1 to invert output"); | |
453 | PrintAndLog(" [set maximum allowed errors], default = 100"); | |
454 | PrintAndLog(" [set maximum Samples to read], default = 32768 (1024 bits at rf/64)"); | |
455 | PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp"); | |
456 | PrintAndLog(""); | |
457 | PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer"); | |
458 | PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified"); | |
459 | PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32"); | |
460 | PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
461 | PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data"); | |
462 | 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"); | |
463 | 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"); | |
464 | return 0; | |
465 | } | |
466 | return ASKDemod(Cmd, true, false, 0); | |
467 | } | |
468 | ||
469 | int AutoCorrelate(int window, bool SaveGrph, bool verbose) | |
470 | { | |
471 | static int CorrelBuffer[MAX_GRAPH_TRACE_LEN]; | |
472 | size_t Correlation = 0; | |
473 | int maxSum = 0; | |
474 | int lastMax = 0; | |
475 | if (verbose) PrintAndLog("performing %d correlations", GraphTraceLen - window); | |
476 | for (int i = 0; i < GraphTraceLen - window; ++i) { | |
477 | int sum = 0; | |
478 | for (int j = 0; j < window; ++j) { | |
479 | sum += (GraphBuffer[j]*GraphBuffer[i + j]) / 256; | |
480 | } | |
481 | CorrelBuffer[i] = sum; | |
482 | if (sum >= maxSum-100 && sum <= maxSum+100){ | |
483 | //another max | |
484 | Correlation = i-lastMax; | |
485 | lastMax = i; | |
486 | if (sum > maxSum) maxSum = sum; | |
487 | } else if (sum > maxSum){ | |
488 | maxSum=sum; | |
489 | lastMax = i; | |
490 | } | |
491 | } | |
492 | if (Correlation==0){ | |
493 | //try again with wider margin | |
494 | for (int i = 0; i < GraphTraceLen - window; i++){ | |
495 | if (CorrelBuffer[i] >= maxSum-(maxSum*0.05) && CorrelBuffer[i] <= maxSum+(maxSum*0.05)){ | |
496 | //another max | |
497 | Correlation = i-lastMax; | |
498 | lastMax = i; | |
499 | //if (CorrelBuffer[i] > maxSum) maxSum = sum; | |
500 | } | |
501 | } | |
502 | } | |
503 | if (verbose && Correlation > 0) PrintAndLog("Possible Correlation: %d samples",Correlation); | |
504 | ||
505 | if (SaveGrph){ | |
506 | GraphTraceLen = GraphTraceLen - window; | |
507 | memcpy(GraphBuffer, CorrelBuffer, GraphTraceLen * sizeof (int)); | |
508 | RepaintGraphWindow(); | |
509 | } | |
510 | return Correlation; | |
511 | } | |
512 | ||
513 | int usage_data_autocorr(void) | |
514 | { | |
515 | //print help | |
516 | PrintAndLog("Usage: data autocorr [window] [g]"); | |
517 | PrintAndLog("Options: "); | |
518 | PrintAndLog(" h This help"); | |
519 | PrintAndLog(" [window] window length for correlation - default = 4000"); | |
520 | PrintAndLog(" g save back to GraphBuffer (overwrite)"); | |
521 | return 0; | |
522 | } | |
523 | ||
524 | int CmdAutoCorr(const char *Cmd) | |
525 | { | |
526 | char cmdp = param_getchar(Cmd, 0); | |
527 | if (cmdp == 'h' || cmdp == 'H') | |
528 | return usage_data_autocorr(); | |
529 | int window = 4000; //set default | |
530 | char grph=0; | |
531 | bool updateGrph = false; | |
532 | sscanf(Cmd, "%i %c", &window, &grph); | |
533 | ||
534 | if (window >= GraphTraceLen) { | |
535 | PrintAndLog("window must be smaller than trace (%d samples)", | |
536 | GraphTraceLen); | |
537 | return 0; | |
538 | } | |
539 | if (grph == 'g') updateGrph=true; | |
540 | return AutoCorrelate(window, updateGrph, true); | |
541 | } | |
542 | ||
543 | int CmdBitsamples(const char *Cmd) | |
544 | { | |
545 | int cnt = 0; | |
546 | uint8_t got[12288]; | |
547 | ||
548 | GetFromBigBuf(got,sizeof(got),0); | |
549 | WaitForResponse(CMD_ACK,NULL); | |
550 | ||
551 | for (int j = 0; j < sizeof(got); j++) { | |
552 | for (int k = 0; k < 8; k++) { | |
553 | if(got[j] & (1 << (7 - k))) { | |
554 | GraphBuffer[cnt++] = 1; | |
555 | } else { | |
556 | GraphBuffer[cnt++] = 0; | |
557 | } | |
558 | } | |
559 | } | |
560 | GraphTraceLen = cnt; | |
561 | RepaintGraphWindow(); | |
562 | return 0; | |
563 | } | |
564 | ||
565 | int CmdBuffClear(const char *Cmd) | |
566 | { | |
567 | UsbCommand c = {CMD_BUFF_CLEAR}; | |
568 | SendCommand(&c); | |
569 | ClearGraph(true); | |
570 | return 0; | |
571 | } | |
572 | ||
573 | int CmdDec(const char *Cmd) | |
574 | { | |
575 | for (int i = 0; i < (GraphTraceLen / 2); ++i) | |
576 | GraphBuffer[i] = GraphBuffer[i * 2]; | |
577 | GraphTraceLen /= 2; | |
578 | PrintAndLog("decimated by 2"); | |
579 | RepaintGraphWindow(); | |
580 | return 0; | |
581 | } | |
582 | /** | |
583 | * Undecimate - I'd call it 'interpolate', but we'll save that | |
584 | * name until someone does an actual interpolation command, not just | |
585 | * blindly repeating samples | |
586 | * @param Cmd | |
587 | * @return | |
588 | */ | |
589 | int CmdUndec(const char *Cmd) | |
590 | { | |
591 | if(param_getchar(Cmd, 0) == 'h') | |
592 | { | |
593 | PrintAndLog("Usage: data undec [factor]"); | |
594 | PrintAndLog("This function performs un-decimation, by repeating each sample N times"); | |
595 | PrintAndLog("Options: "); | |
596 | PrintAndLog(" h This help"); | |
597 | PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); | |
598 | PrintAndLog("Example: 'data undec 3'"); | |
599 | return 0; | |
600 | } | |
601 | ||
602 | uint8_t factor = param_get8ex(Cmd, 0,2, 10); | |
603 | //We have memory, don't we? | |
604 | int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; | |
605 | uint32_t g_index = 0, s_index = 0; | |
606 | while(g_index < GraphTraceLen && s_index + factor < MAX_GRAPH_TRACE_LEN) | |
607 | { | |
608 | int count = 0; | |
609 | for(count = 0; count < factor && s_index + count < MAX_GRAPH_TRACE_LEN; count++) | |
610 | swap[s_index+count] = GraphBuffer[g_index]; | |
611 | ||
612 | s_index += count; | |
613 | g_index++; | |
614 | } | |
615 | ||
616 | memcpy(GraphBuffer, swap, s_index * sizeof(int)); | |
617 | GraphTraceLen = s_index; | |
618 | RepaintGraphWindow(); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | //by marshmellow | |
623 | //shift graph zero up or down based on input + or - | |
624 | int CmdGraphShiftZero(const char *Cmd) | |
625 | { | |
626 | ||
627 | int shift=0; | |
628 | //set options from parameters entered with the command | |
629 | sscanf(Cmd, "%i", &shift); | |
630 | int shiftedVal=0; | |
631 | for(int i = 0; i<GraphTraceLen; i++){ | |
632 | shiftedVal=GraphBuffer[i]+shift; | |
633 | if (shiftedVal>127) | |
634 | shiftedVal=127; | |
635 | else if (shiftedVal<-127) | |
636 | shiftedVal=-127; | |
637 | GraphBuffer[i]= shiftedVal; | |
638 | } | |
639 | CmdNorm(""); | |
640 | return 0; | |
641 | } | |
642 | ||
643 | //by marshmellow | |
644 | //use large jumps in read samples to identify edges of waves and then amplify that wave to max | |
645 | //similar to dirtheshold, threshold commands | |
646 | //takes a threshold length which is the measured length between two samples then determines an edge | |
647 | int CmdAskEdgeDetect(const char *Cmd) | |
648 | { | |
649 | int thresLen = 25; | |
650 | int Last = 0; | |
651 | sscanf(Cmd, "%i", &thresLen); | |
652 | ||
653 | for(int i = 1; i<GraphTraceLen; i++){ | |
654 | if (GraphBuffer[i]-GraphBuffer[i-1]>=thresLen) //large jump up | |
655 | Last = 127; | |
656 | else if(GraphBuffer[i]-GraphBuffer[i-1]<=-1*thresLen) //large jump down | |
657 | Last = -127; | |
658 | GraphBuffer[i-1] = Last; | |
659 | } | |
660 | RepaintGraphWindow(); | |
661 | return 0; | |
662 | } | |
663 | ||
664 | /* Print our clock rate */ | |
665 | // uses data from graphbuffer | |
666 | // adjusted to take char parameter for type of modulation to find the clock - by marshmellow. | |
667 | int CmdDetectClockRate(const char *Cmd) | |
668 | { | |
669 | char cmdp = param_getchar(Cmd, 0); | |
670 | if (strlen(Cmd) > 6 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') { | |
671 | PrintAndLog("Usage: data detectclock [modulation] <clock>"); | |
672 | PrintAndLog(" [modulation as char], specify the modulation type you want to detect the clock of"); | |
673 | PrintAndLog(" <clock> , specify the clock (optional - to get best start position only)"); | |
674 | PrintAndLog(" 'a' = ask, 'f' = fsk, 'n' = nrz/direct, 'p' = psk"); | |
675 | PrintAndLog(""); | |
676 | PrintAndLog(" sample: data detectclock a = detect the clock of an ask modulated wave in the GraphBuffer"); | |
677 | PrintAndLog(" data detectclock f = detect the clock of an fsk modulated wave in the GraphBuffer"); | |
678 | PrintAndLog(" data detectclock p = detect the clock of an psk modulated wave in the GraphBuffer"); | |
679 | PrintAndLog(" data detectclock n = detect the clock of an nrz/direct modulated wave in the GraphBuffer"); | |
680 | } | |
681 | int ans=0; | |
682 | if (cmdp == 'a'){ | |
683 | ans = GetAskClock(Cmd+1, true, false); | |
684 | } else if (cmdp == 'f'){ | |
685 | ans = GetFskClock("", true, false); | |
686 | } else if (cmdp == 'n'){ | |
687 | ans = GetNrzClock("", true, false); | |
688 | } else if (cmdp == 'p'){ | |
689 | ans = GetPskClock("", true, false); | |
690 | } else { | |
691 | PrintAndLog ("Please specify a valid modulation to detect the clock of - see option h for help"); | |
692 | } | |
693 | return ans; | |
694 | } | |
695 | ||
696 | char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert) | |
697 | { | |
698 | static char fType[8]; | |
699 | memset(fType, 0x00, 8); | |
700 | char *fskType = fType; | |
701 | if (fchigh==10 && fclow==8){ | |
702 | if (invert) //fsk2a | |
703 | memcpy(fskType, "FSK2a", 5); | |
704 | else //fsk2 | |
705 | memcpy(fskType, "FSK2", 4); | |
706 | } else if (fchigh == 8 && fclow == 5) { | |
707 | if (invert) | |
708 | memcpy(fskType, "FSK1", 4); | |
709 | else | |
710 | memcpy(fskType, "FSK1a", 5); | |
711 | } else { | |
712 | memcpy(fskType, "FSK??", 5); | |
713 | } | |
714 | return fskType; | |
715 | } | |
716 | ||
717 | //by marshmellow | |
718 | //fsk raw demod and print binary | |
719 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
720 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
721 | int FSKrawDemod(const char *Cmd, bool verbose) | |
722 | { | |
723 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave | |
724 | uint8_t rfLen, invert, fchigh, fclow; | |
725 | //set defaults | |
726 | //set options from parameters entered with the command | |
727 | rfLen = param_get8(Cmd, 0); | |
728 | invert = param_get8(Cmd, 1); | |
729 | fchigh = param_get8(Cmd, 2); | |
730 | fclow = param_get8(Cmd, 3); | |
731 | ||
732 | if (strlen(Cmd)>0 && strlen(Cmd)<=2) { | |
733 | if (rfLen==1) { | |
734 | invert = 1; //if invert option only is used | |
735 | rfLen = 0; | |
736 | } | |
737 | } | |
738 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
739 | size_t BitLen = getFromGraphBuf(BitStream); | |
740 | if (BitLen==0) return 0; | |
741 | //get field clock lengths | |
742 | uint16_t fcs=0; | |
743 | if (!fchigh || !fclow) { | |
744 | fcs = countFC(BitStream, BitLen, 1); | |
745 | if (!fcs) { | |
746 | fchigh = 10; | |
747 | fclow = 8; | |
748 | } else { | |
749 | fchigh = (fcs >> 8) & 0x00FF; | |
750 | fclow = fcs & 0x00FF; | |
751 | } | |
752 | } | |
753 | //get bit clock length | |
754 | if (!rfLen) { | |
755 | rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow); | |
756 | if (!rfLen) rfLen = 50; | |
757 | } | |
758 | int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow); | |
759 | if (size > 0) { | |
760 | setDemodBuf(BitStream,size,0); | |
761 | ||
762 | // Now output the bitstream to the scrollback by line of 16 bits | |
763 | if (verbose || g_debugMode) { | |
764 | PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow); | |
765 | PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert)); | |
766 | printDemodBuff(); | |
767 | } | |
768 | ||
769 | return 1; | |
770 | } else { | |
771 | if (g_debugMode) PrintAndLog("no FSK data found"); | |
772 | } | |
773 | return 0; | |
774 | } | |
775 | ||
776 | //by marshmellow | |
777 | //fsk raw demod and print binary | |
778 | //takes 4 arguments - Clock, invert, fchigh, fclow | |
779 | //defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a)) | |
780 | int CmdFSKrawdemod(const char *Cmd) | |
781 | { | |
782 | char cmdp = param_getchar(Cmd, 0); | |
783 | if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') { | |
784 | PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]"); | |
785 | PrintAndLog(" [set clock as integer] optional, omit for autodetect."); | |
786 | PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted"); | |
787 | PrintAndLog(" [fchigh], larger field clock length, omit for autodetect"); | |
788 | PrintAndLog(" [fclow], small field clock length, omit for autodetect"); | |
789 | PrintAndLog(""); | |
790 | PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect"); | |
791 | PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc"); | |
792 | PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output"); | |
793 | PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc"); | |
794 | PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer"); | |
795 | PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer"); | |
796 | PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer"); | |
797 | return 0; | |
798 | } | |
799 | return FSKrawDemod(Cmd, true); | |
800 | } | |
801 | ||
802 | //by marshmellow | |
803 | //attempt to psk1 demod graph buffer | |
804 | int PSKDemod(const char *Cmd, bool verbose) | |
805 | { | |
806 | int invert=0; | |
807 | int clk=0; | |
808 | int maxErr=100; | |
809 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
810 | if (clk==1){ | |
811 | invert=1; | |
812 | clk=0; | |
813 | } | |
814 | if (invert != 0 && invert != 1) { | |
815 | if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd); | |
816 | return 0; | |
817 | } | |
818 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
819 | size_t BitLen = getFromGraphBuf(BitStream); | |
820 | if (BitLen==0) return 0; | |
821 | uint8_t carrier=countFC(BitStream, BitLen, 0); | |
822 | if (carrier!=2 && carrier!=4 && carrier!=8){ | |
823 | //invalid carrier | |
824 | return 0; | |
825 | } | |
826 | if (g_debugMode){ | |
827 | PrintAndLog("Carrier: rf/%d",carrier); | |
828 | } | |
829 | int errCnt=0; | |
830 | errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert); | |
831 | if (errCnt > maxErr){ | |
832 | if (g_debugMode || verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
833 | return 0; | |
834 | } | |
835 | if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
836 | if (g_debugMode || verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
837 | return 0; | |
838 | } | |
839 | if (verbose || g_debugMode){ | |
840 | PrintAndLog("\nUsing Clock:%d, invert:%d, Bits Found:%d",clk,invert,BitLen); | |
841 | if (errCnt>0){ | |
842 | PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
843 | } | |
844 | } | |
845 | //prime demod buffer for output | |
846 | setDemodBuf(BitStream,BitLen,0); | |
847 | return 1; | |
848 | } | |
849 | ||
850 | // by marshmellow | |
851 | // takes 3 arguments - clock, invert, maxErr as integers | |
852 | // attempts to demodulate nrz only | |
853 | // prints binary found and saves in demodbuffer for further commands | |
854 | int NRZrawDemod(const char *Cmd, bool verbose) | |
855 | { | |
856 | int invert=0; | |
857 | int clk=0; | |
858 | int maxErr=100; | |
859 | sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr); | |
860 | if (clk==1){ | |
861 | invert=1; | |
862 | clk=0; | |
863 | } | |
864 | if (invert != 0 && invert != 1) { | |
865 | PrintAndLog("Invalid argument: %s", Cmd); | |
866 | return 0; | |
867 | } | |
868 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
869 | size_t BitLen = getFromGraphBuf(BitStream); | |
870 | if (BitLen==0) return 0; | |
871 | int errCnt=0; | |
872 | int clkStartIdx = 0; | |
873 | errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, &clkStartIdx); | |
874 | if (errCnt > maxErr){ | |
875 | if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
876 | return 0; | |
877 | } | |
878 | if (errCnt<0 || BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) | |
879 | if (g_debugMode) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); | |
880 | return 0; | |
881 | } | |
882 | if (verbose || g_debugMode) PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); | |
883 | //prime demod buffer for output | |
884 | setDemodBuf(BitStream,BitLen,0); | |
885 | ||
886 | if (errCnt>0 && (verbose || g_debugMode)) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt); | |
887 | if (verbose || g_debugMode) { | |
888 | PrintAndLog("NRZ demoded bitstream:"); | |
889 | // Now output the bitstream to the scrollback by line of 16 bits | |
890 | printDemodBuff(); | |
891 | } | |
892 | return 1; | |
893 | } | |
894 | ||
895 | int CmdNRZrawDemod(const char *Cmd) | |
896 | { | |
897 | char cmdp = param_getchar(Cmd, 0); | |
898 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { | |
899 | PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]"); | |
900 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
901 | PrintAndLog(" <invert>, 1 for invert output"); | |
902 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
903 | PrintAndLog(""); | |
904 | PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer"); | |
905 | PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32"); | |
906 | PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
907 | PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data"); | |
908 | 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"); | |
909 | return 0; | |
910 | } | |
911 | return NRZrawDemod(Cmd, true); | |
912 | } | |
913 | ||
914 | // by marshmellow | |
915 | // takes 3 arguments - clock, invert, maxErr as integers | |
916 | // attempts to demodulate psk only | |
917 | // prints binary found and saves in demodbuffer for further commands | |
918 | int CmdPSK1rawDemod(const char *Cmd) | |
919 | { | |
920 | int ans; | |
921 | char cmdp = param_getchar(Cmd, 0); | |
922 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { | |
923 | PrintAndLog("Usage: data rawdemod p1 [clock] <0|1> [maxError]"); | |
924 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
925 | PrintAndLog(" <invert>, 1 for invert output"); | |
926 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
927 | PrintAndLog(""); | |
928 | PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer"); | |
929 | PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32"); | |
930 | PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data"); | |
931 | PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data"); | |
932 | 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"); | |
933 | return 0; | |
934 | } | |
935 | ans = PSKDemod(Cmd, true); | |
936 | //output | |
937 | if (!ans){ | |
938 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
939 | return 0; | |
940 | } | |
941 | ||
942 | PrintAndLog("PSK1 demoded bitstream:"); | |
943 | // Now output the bitstream to the scrollback by line of 16 bits | |
944 | printDemodBuff(); | |
945 | return 1; | |
946 | } | |
947 | ||
948 | // by marshmellow | |
949 | // takes same args as cmdpsk1rawdemod | |
950 | int CmdPSK2rawDemod(const char *Cmd) | |
951 | { | |
952 | int ans=0; | |
953 | char cmdp = param_getchar(Cmd, 0); | |
954 | if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') { | |
955 | PrintAndLog("Usage: data rawdemod p2 [clock] <0|1> [maxError]"); | |
956 | PrintAndLog(" [set clock as integer] optional, if not set, autodetect."); | |
957 | PrintAndLog(" <invert>, 1 for invert output"); | |
958 | PrintAndLog(" [set maximum allowed errors], default = 100."); | |
959 | PrintAndLog(""); | |
960 | PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock"); | |
961 | PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32"); | |
962 | PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output"); | |
963 | PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output"); | |
964 | 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"); | |
965 | return 0; | |
966 | } | |
967 | ans=PSKDemod(Cmd, true); | |
968 | if (!ans){ | |
969 | if (g_debugMode) PrintAndLog("Error demoding: %d",ans); | |
970 | return 0; | |
971 | } | |
972 | psk1TOpsk2(DemodBuffer, DemodBufferLen); | |
973 | PrintAndLog("PSK2 demoded bitstream:"); | |
974 | // Now output the bitstream to the scrollback by line of 16 bits | |
975 | printDemodBuff(); | |
976 | return 1; | |
977 | } | |
978 | ||
979 | // by marshmellow - combines all raw demod functions into one menu command | |
980 | int CmdRawDemod(const char *Cmd) | |
981 | { | |
982 | char cmdp = Cmd[0]; //param_getchar(Cmd, 0); | |
983 | ||
984 | if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd)<2) { | |
985 | PrintAndLog("Usage: data rawdemod [modulation] <help>|<options>"); | |
986 | PrintAndLog(" [modulation] as 2 char, 'ab' for ask/biphase, 'am' for ask/manchester, 'ar' for ask/raw, 'fs' for fsk, ..."); | |
987 | PrintAndLog(" 'nr' for nrz/direct, 'p1' for psk1, 'p2' for psk2"); | |
988 | PrintAndLog(" <help> as 'h', prints the help for the specific modulation"); | |
989 | PrintAndLog(" <options> see specific modulation help for optional parameters"); | |
990 | PrintAndLog(""); | |
991 | PrintAndLog(" sample: data rawdemod fs h = print help specific to fsk demod"); | |
992 | PrintAndLog(" : data rawdemod fs = demod GraphBuffer using: fsk - autodetect"); | |
993 | PrintAndLog(" : data rawdemod ab = demod GraphBuffer using: ask/biphase - autodetect"); | |
994 | PrintAndLog(" : data rawdemod am = demod GraphBuffer using: ask/manchester - autodetect"); | |
995 | PrintAndLog(" : data rawdemod ar = demod GraphBuffer using: ask/raw - autodetect"); | |
996 | PrintAndLog(" : data rawdemod nr = demod GraphBuffer using: nrz/direct - autodetect"); | |
997 | PrintAndLog(" : data rawdemod p1 = demod GraphBuffer using: psk1 - autodetect"); | |
998 | PrintAndLog(" : data rawdemod p2 = demod GraphBuffer using: psk2 - autodetect"); | |
999 | return 0; | |
1000 | } | |
1001 | char cmdp2 = Cmd[1]; | |
1002 | int ans = 0; | |
1003 | if (cmdp == 'f' && cmdp2 == 's'){ | |
1004 | ans = CmdFSKrawdemod(Cmd+2); | |
1005 | } else if(cmdp == 'a' && cmdp2 == 'b'){ | |
1006 | ans = Cmdaskbiphdemod(Cmd+2); | |
1007 | } else if(cmdp == 'a' && cmdp2 == 'm'){ | |
1008 | ans = Cmdaskmandemod(Cmd+2); | |
1009 | } else if(cmdp == 'a' && cmdp2 == 'r'){ | |
1010 | ans = Cmdaskrawdemod(Cmd+2); | |
1011 | } else if(cmdp == 'n' && cmdp2 == 'r'){ | |
1012 | ans = CmdNRZrawDemod(Cmd+2); | |
1013 | } else if(cmdp == 'p' && cmdp2 == '1'){ | |
1014 | ans = CmdPSK1rawDemod(Cmd+2); | |
1015 | } else if(cmdp == 'p' && cmdp2 == '2'){ | |
1016 | ans = CmdPSK2rawDemod(Cmd+2); | |
1017 | } else { | |
1018 | PrintAndLog("unknown modulation entered - see help ('h') for parameter structure"); | |
1019 | } | |
1020 | return ans; | |
1021 | } | |
1022 | ||
1023 | int CmdGrid(const char *Cmd) | |
1024 | { | |
1025 | sscanf(Cmd, "%i %i", &PlotGridX, &PlotGridY); | |
1026 | PlotGridXdefault= PlotGridX; | |
1027 | PlotGridYdefault= PlotGridY; | |
1028 | RepaintGraphWindow(); | |
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | int CmdSetGraphMarkers(const char *Cmd) { | |
1033 | sscanf(Cmd, "%i %i", &CursorCPos, &CursorDPos); | |
1034 | RepaintGraphWindow(); | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | int CmdHexsamples(const char *Cmd) | |
1039 | { | |
1040 | int i, j; | |
1041 | int requested = 0; | |
1042 | int offset = 0; | |
1043 | char string_buf[25]; | |
1044 | char* string_ptr = string_buf; | |
1045 | uint8_t got[BIGBUF_SIZE]; | |
1046 | ||
1047 | sscanf(Cmd, "%i %i", &requested, &offset); | |
1048 | ||
1049 | /* if no args send something */ | |
1050 | if (requested == 0) { | |
1051 | requested = 8; | |
1052 | } | |
1053 | if (offset + requested > sizeof(got)) { | |
1054 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > %d", BIGBUF_SIZE); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | GetFromBigBuf(got,requested,offset); | |
1059 | WaitForResponse(CMD_ACK,NULL); | |
1060 | ||
1061 | i = 0; | |
1062 | for (j = 0; j < requested; j++) { | |
1063 | i++; | |
1064 | string_ptr += sprintf(string_ptr, "%02x ", got[j]); | |
1065 | if (i == 8) { | |
1066 | *(string_ptr - 1) = '\0'; // remove the trailing space | |
1067 | PrintAndLog("%s", string_buf); | |
1068 | string_buf[0] = '\0'; | |
1069 | string_ptr = string_buf; | |
1070 | i = 0; | |
1071 | } | |
1072 | if (j == requested - 1 && string_buf[0] != '\0') { // print any remaining bytes | |
1073 | *(string_ptr - 1) = '\0'; | |
1074 | PrintAndLog("%s", string_buf); | |
1075 | string_buf[0] = '\0'; | |
1076 | } | |
1077 | } | |
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | int CmdHide(const char *Cmd) | |
1082 | { | |
1083 | HideGraphWindow(); | |
1084 | return 0; | |
1085 | } | |
1086 | ||
1087 | //zero mean GraphBuffer | |
1088 | int CmdHpf(const char *Cmd) | |
1089 | { | |
1090 | int i; | |
1091 | int accum = 0; | |
1092 | ||
1093 | for (i = 10; i < GraphTraceLen; ++i) | |
1094 | accum += GraphBuffer[i]; | |
1095 | accum /= (GraphTraceLen - 10); | |
1096 | for (i = 0; i < GraphTraceLen; ++i) | |
1097 | GraphBuffer[i] -= accum; | |
1098 | ||
1099 | RepaintGraphWindow(); | |
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b) | |
1104 | { | |
1105 | int i; | |
1106 | uint8_t val = 0; | |
1107 | for(i =0 ; i < bits_per_sample; i++) | |
1108 | { | |
1109 | val |= (headBit(b) << (7-i)); | |
1110 | } | |
1111 | return val; | |
1112 | } | |
1113 | ||
1114 | int getSamples(const char *Cmd, bool silent) | |
1115 | { | |
1116 | //If we get all but the last byte in bigbuf, | |
1117 | // we don't have to worry about remaining trash | |
1118 | // in the last byte in case the bits-per-sample | |
1119 | // does not line up on byte boundaries | |
1120 | ||
1121 | uint8_t got[BIGBUF_SIZE-1] = { 0 }; | |
1122 | ||
1123 | int n = strtol(Cmd, NULL, 0); | |
1124 | ||
1125 | if (n == 0 || n > sizeof(got)) | |
1126 | n = sizeof(got); | |
1127 | ||
1128 | PrintAndLog("Reading %d bytes from device memory\n", n); | |
1129 | GetFromBigBuf(got,n,0); | |
1130 | PrintAndLog("Data fetched"); | |
1131 | UsbCommand response; | |
1132 | WaitForResponse(CMD_ACK, &response); | |
1133 | uint8_t bits_per_sample = 8; | |
1134 | ||
1135 | //Old devices without this feature would send 0 at arg[0] | |
1136 | if(response.arg[0] > 0) | |
1137 | { | |
1138 | sample_config *sc = (sample_config *) response.d.asBytes; | |
1139 | PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample | |
1140 | , sc->decimation); | |
1141 | bits_per_sample = sc->bits_per_sample; | |
1142 | } | |
1143 | if(bits_per_sample < 8) | |
1144 | { | |
1145 | PrintAndLog("Unpacking..."); | |
1146 | BitstreamIn bout = { got, bits_per_sample * n, 0}; | |
1147 | int j =0; | |
1148 | for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) { | |
1149 | uint8_t sample = getByte(bits_per_sample, &bout); | |
1150 | GraphBuffer[j] = ((int) sample )- 128; | |
1151 | } | |
1152 | GraphTraceLen = j; | |
1153 | PrintAndLog("Unpacked %d samples" , j ); | |
1154 | }else | |
1155 | { | |
1156 | for (int j = 0; j < n; j++) { | |
1157 | GraphBuffer[j] = ((int)got[j]) - 128; | |
1158 | } | |
1159 | GraphTraceLen = n; | |
1160 | } | |
1161 | ||
1162 | RepaintGraphWindow(); | |
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | int CmdSamples(const char *Cmd) | |
1167 | { | |
1168 | return getSamples(Cmd, false); | |
1169 | } | |
1170 | ||
1171 | int CmdTuneSamples(const char *Cmd) | |
1172 | { | |
1173 | int timeout = 0, arg = FLAG_TUNE_ALL; | |
1174 | ||
1175 | if(*Cmd == 'l') { | |
1176 | arg = FLAG_TUNE_LF; | |
1177 | } else if (*Cmd == 'h') { | |
1178 | arg = FLAG_TUNE_HF; | |
1179 | } else if (*Cmd != '\0') { | |
1180 | PrintAndLog("use 'tune' or 'tune l' or 'tune h'"); | |
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | printf("\nMeasuring antenna characteristics, please wait..."); | |
1185 | ||
1186 | UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}}; | |
1187 | SendCommand(&c); | |
1188 | ||
1189 | UsbCommand resp; | |
1190 | while(!WaitForResponseTimeout(CMD_MEASURED_ANTENNA_TUNING,&resp,1000)) { | |
1191 | timeout++; | |
1192 | printf("."); | |
1193 | if (timeout > 7) { | |
1194 | PrintAndLog("\nNo response from Proxmark. Aborting..."); | |
1195 | return 1; | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | int peakv, peakf; | |
1200 | int vLf125, vLf134, vHf; | |
1201 | vLf125 = resp.arg[0] & 0xffff; | |
1202 | vLf134 = resp.arg[0] >> 16; | |
1203 | vHf = resp.arg[1] & 0xffff;; | |
1204 | peakf = resp.arg[2] & 0xffff; | |
1205 | peakv = resp.arg[2] >> 16; | |
1206 | PrintAndLog(""); | |
1207 | PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); | |
1208 | PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); | |
1209 | PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); | |
1210 | PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); | |
1211 | ||
1212 | #define LF_UNUSABLE_V 2948 // was 2000. Changed due to bugfix in voltage measurements. LF results are now 47% higher. | |
1213 | #define LF_MARGINAL_V 14739 // was 10000. Changed due to bugfix bug in voltage measurements. LF results are now 47% higher. | |
1214 | #define HF_UNUSABLE_V 3167 // was 2000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1215 | #define HF_MARGINAL_V 7917 // was 5000. Changed due to bugfix in voltage measurements. HF results are now 58% higher. | |
1216 | ||
1217 | if (peakv < LF_UNUSABLE_V) | |
1218 | PrintAndLog("# Your LF antenna is unusable."); | |
1219 | else if (peakv < LF_MARGINAL_V) | |
1220 | PrintAndLog("# Your LF antenna is marginal."); | |
1221 | if (vHf < HF_UNUSABLE_V) | |
1222 | PrintAndLog("# Your HF antenna is unusable."); | |
1223 | else if (vHf < HF_MARGINAL_V) | |
1224 | PrintAndLog("# Your HF antenna is marginal."); | |
1225 | ||
1226 | if (peakv >= LF_UNUSABLE_V) { | |
1227 | for (int i = 0; i < 256; i++) { | |
1228 | GraphBuffer[i] = resp.d.asBytes[i] - 128; | |
1229 | } | |
1230 | PrintAndLog("Displaying LF tuning graph. Divisor 89 is 134khz, 95 is 125khz.\n"); | |
1231 | PrintAndLog("\n"); | |
1232 | GraphTraceLen = 256; | |
1233 | ShowGraphWindow(); | |
1234 | RepaintGraphWindow(); | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | ||
1241 | int CmdLoad(const char *Cmd) | |
1242 | { | |
1243 | char filename[FILE_PATH_SIZE] = {0x00}; | |
1244 | int len = 0; | |
1245 | ||
1246 | len = strlen(Cmd); | |
1247 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1248 | memcpy(filename, Cmd, len); | |
1249 | ||
1250 | FILE *f = fopen(filename, "r"); | |
1251 | if (!f) { | |
1252 | PrintAndLog("couldn't open '%s'", filename); | |
1253 | return 0; | |
1254 | } | |
1255 | ||
1256 | GraphTraceLen = 0; | |
1257 | char line[80]; | |
1258 | while (fgets(line, sizeof (line), f)) { | |
1259 | GraphBuffer[GraphTraceLen] = atoi(line); | |
1260 | GraphTraceLen++; | |
1261 | } | |
1262 | fclose(f); | |
1263 | PrintAndLog("loaded %d samples", GraphTraceLen); | |
1264 | RepaintGraphWindow(); | |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | int CmdLtrim(const char *Cmd) | |
1269 | { | |
1270 | int ds = atoi(Cmd); | |
1271 | if (GraphTraceLen<=0) return 0; | |
1272 | for (int i = ds; i < GraphTraceLen; ++i) | |
1273 | GraphBuffer[i-ds] = GraphBuffer[i]; | |
1274 | GraphTraceLen -= ds; | |
1275 | ||
1276 | RepaintGraphWindow(); | |
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | // trim graph to input argument length | |
1281 | int CmdRtrim(const char *Cmd) | |
1282 | { | |
1283 | int ds = atoi(Cmd); | |
1284 | ||
1285 | GraphTraceLen = ds; | |
1286 | ||
1287 | RepaintGraphWindow(); | |
1288 | return 0; | |
1289 | } | |
1290 | ||
1291 | // trim graph (middle) piece | |
1292 | int CmdMtrim(const char *Cmd) { | |
1293 | int start = 0, stop = 0; | |
1294 | sscanf(Cmd, "%i %i", &start, &stop); | |
1295 | ||
1296 | if (start > GraphTraceLen || stop > GraphTraceLen || start > stop) return 0; | |
1297 | start++; //leave start position sample | |
1298 | ||
1299 | GraphTraceLen = stop - start; | |
1300 | for (int i = 0; i < GraphTraceLen; i++) { | |
1301 | GraphBuffer[i] = GraphBuffer[start+i]; | |
1302 | } | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | ||
1307 | int CmdNorm(const char *Cmd) | |
1308 | { | |
1309 | int i; | |
1310 | int max = INT_MIN, min = INT_MAX; | |
1311 | ||
1312 | for (i = 10; i < GraphTraceLen; ++i) { | |
1313 | if (GraphBuffer[i] > max) | |
1314 | max = GraphBuffer[i]; | |
1315 | if (GraphBuffer[i] < min) | |
1316 | min = GraphBuffer[i]; | |
1317 | } | |
1318 | ||
1319 | if (max != min) { | |
1320 | for (i = 0; i < GraphTraceLen; ++i) { | |
1321 | GraphBuffer[i] = (GraphBuffer[i] - ((max + min) / 2)) * 256 / | |
1322 | (max - min); | |
1323 | //marshmelow: adjusted *1000 to *256 to make +/- 128 so demod commands still work | |
1324 | } | |
1325 | } | |
1326 | RepaintGraphWindow(); | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | int CmdPlot(const char *Cmd) | |
1331 | { | |
1332 | ShowGraphWindow(); | |
1333 | return 0; | |
1334 | } | |
1335 | ||
1336 | int CmdSave(const char *Cmd) | |
1337 | { | |
1338 | char filename[FILE_PATH_SIZE] = {0x00}; | |
1339 | int len = 0; | |
1340 | ||
1341 | len = strlen(Cmd); | |
1342 | if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; | |
1343 | memcpy(filename, Cmd, len); | |
1344 | ||
1345 | ||
1346 | FILE *f = fopen(filename, "w"); | |
1347 | if(!f) { | |
1348 | PrintAndLog("couldn't open '%s'", filename); | |
1349 | return 0; | |
1350 | } | |
1351 | int i; | |
1352 | for (i = 0; i < GraphTraceLen; i++) { | |
1353 | fprintf(f, "%d\n", GraphBuffer[i]); | |
1354 | } | |
1355 | fclose(f); | |
1356 | PrintAndLog("saved to '%s'", Cmd); | |
1357 | return 0; | |
1358 | } | |
1359 | ||
1360 | int CmdScale(const char *Cmd) | |
1361 | { | |
1362 | CursorScaleFactor = atoi(Cmd); | |
1363 | if (CursorScaleFactor == 0) { | |
1364 | PrintAndLog("bad, can't have zero scale"); | |
1365 | CursorScaleFactor = 1; | |
1366 | } | |
1367 | RepaintGraphWindow(); | |
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | int CmdDirectionalThreshold(const char *Cmd) | |
1372 | { | |
1373 | int8_t upThres = param_get8(Cmd, 0); | |
1374 | int8_t downThres = param_get8(Cmd, 1); | |
1375 | ||
1376 | printf("Applying Up Threshold: %d, Down Threshold: %d\n", upThres, downThres); | |
1377 | ||
1378 | int lastValue = GraphBuffer[0]; | |
1379 | GraphBuffer[0] = 0; // Will be changed at the end, but init 0 as we adjust to last samples value if no threshold kicks in. | |
1380 | ||
1381 | for (int i = 1; i < GraphTraceLen; ++i) { | |
1382 | // Apply first threshold to samples heading up | |
1383 | if (GraphBuffer[i] >= upThres && GraphBuffer[i] > lastValue) | |
1384 | { | |
1385 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
1386 | GraphBuffer[i] = 127; | |
1387 | } | |
1388 | // Apply second threshold to samples heading down | |
1389 | else if (GraphBuffer[i] <= downThres && GraphBuffer[i] < lastValue) | |
1390 | { | |
1391 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
1392 | GraphBuffer[i] = -127; | |
1393 | } | |
1394 | else | |
1395 | { | |
1396 | lastValue = GraphBuffer[i]; // Buffer last value as we overwrite it. | |
1397 | GraphBuffer[i] = GraphBuffer[i-1]; | |
1398 | ||
1399 | } | |
1400 | } | |
1401 | GraphBuffer[0] = GraphBuffer[1]; // Aline with first edited sample. | |
1402 | RepaintGraphWindow(); | |
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | int CmdZerocrossings(const char *Cmd) | |
1407 | { | |
1408 | // Zero-crossings aren't meaningful unless the signal is zero-mean. | |
1409 | CmdHpf(""); | |
1410 | ||
1411 | int sign = 1; | |
1412 | int zc = 0; | |
1413 | int lastZc = 0; | |
1414 | ||
1415 | for (int i = 0; i < GraphTraceLen; ++i) { | |
1416 | if (GraphBuffer[i] * sign >= 0) { | |
1417 | // No change in sign, reproduce the previous sample count. | |
1418 | zc++; | |
1419 | GraphBuffer[i] = lastZc; | |
1420 | } else { | |
1421 | // Change in sign, reset the sample count. | |
1422 | sign = -sign; | |
1423 | GraphBuffer[i] = lastZc; | |
1424 | if (sign > 0) { | |
1425 | lastZc = zc; | |
1426 | zc = 0; | |
1427 | } | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | RepaintGraphWindow(); | |
1432 | return 0; | |
1433 | } | |
1434 | ||
1435 | int usage_data_bin2hex(){ | |
1436 | PrintAndLog("Usage: data bin2hex <binary_digits>"); | |
1437 | PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)"); | |
1438 | return 0; | |
1439 | } | |
1440 | ||
1441 | /** | |
1442 | * @brief Utility for conversion via cmdline. | |
1443 | * @param Cmd | |
1444 | * @return | |
1445 | */ | |
1446 | int Cmdbin2hex(const char *Cmd) | |
1447 | { | |
1448 | int bg =0, en =0; | |
1449 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1450 | { | |
1451 | return usage_data_bin2hex(); | |
1452 | } | |
1453 | //Number of digits supplied as argument | |
1454 | size_t length = en - bg +1; | |
1455 | size_t bytelen = (length+7) / 8; | |
1456 | uint8_t* arr = (uint8_t *) malloc(bytelen); | |
1457 | memset(arr, 0, bytelen); | |
1458 | BitstreamOut bout = { arr, 0, 0 }; | |
1459 | ||
1460 | for(; bg <= en ;bg++) | |
1461 | { | |
1462 | char c = Cmd[bg]; | |
1463 | if( c == '1') pushBit(&bout, 1); | |
1464 | else if( c == '0') pushBit(&bout, 0); | |
1465 | else PrintAndLog("Ignoring '%c'", c); | |
1466 | } | |
1467 | ||
1468 | if(bout.numbits % 8 != 0) | |
1469 | { | |
1470 | printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8)); | |
1471 | } | |
1472 | ||
1473 | //Uses printf instead of PrintAndLog since the latter | |
1474 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1475 | // allocate a string and write to that first... | |
1476 | for(size_t x = 0; x < bytelen ; x++) | |
1477 | { | |
1478 | printf("%02X", arr[x]); | |
1479 | } | |
1480 | printf("\n"); | |
1481 | free(arr); | |
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | int usage_data_hex2bin() { | |
1486 | PrintAndLog("Usage: data hex2bin <hex_digits>"); | |
1487 | PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)"); | |
1488 | return 0; | |
1489 | ||
1490 | } | |
1491 | ||
1492 | int Cmdhex2bin(const char *Cmd) | |
1493 | { | |
1494 | int bg =0, en =0; | |
1495 | if(param_getptr(Cmd, &bg, &en, 0)) | |
1496 | { | |
1497 | return usage_data_hex2bin(); | |
1498 | } | |
1499 | ||
1500 | ||
1501 | while(bg <= en ) | |
1502 | { | |
1503 | char x = Cmd[bg++]; | |
1504 | // capitalize | |
1505 | if (x >= 'a' && x <= 'f') | |
1506 | x -= 32; | |
1507 | // convert to numeric value | |
1508 | if (x >= '0' && x <= '9') | |
1509 | x -= '0'; | |
1510 | else if (x >= 'A' && x <= 'F') | |
1511 | x -= 'A' - 10; | |
1512 | else | |
1513 | continue; | |
1514 | ||
1515 | //Uses printf instead of PrintAndLog since the latter | |
1516 | // adds linebreaks to each printout - this way was more convenient since we don't have to | |
1517 | // allocate a string and write to that first... | |
1518 | ||
1519 | for(int i= 0 ; i < 4 ; ++i) | |
1520 | printf("%d",(x >> (3 - i)) & 1); | |
1521 | } | |
1522 | printf("\n"); | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | static command_t CommandTable[] = | |
1528 | { | |
1529 | {"help", CmdHelp, 1, "This help"}, | |
1530 | {"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)"}, | |
1531 | {"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"}, | |
1532 | {"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"}, | |
1533 | {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"}, | |
1534 | {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, | |
1535 | {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, | |
1536 | {"dec", CmdDec, 1, "Decimate samples"}, | |
1537 | {"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"}, | |
1538 | //{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, | |
1539 | {"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"}, | |
1540 | {"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"}, | |
1541 | {"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"}, | |
1542 | {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"}, | |
1543 | {"hide", CmdHide, 1, "Hide graph window"}, | |
1544 | {"hpf", CmdHpf, 1, "Remove DC offset from trace"}, | |
1545 | {"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"}, | |
1546 | {"ltrim", CmdLtrim, 1, "<samples> -- Trim samples from left of trace"}, | |
1547 | {"rtrim", CmdRtrim, 1, "<location to end trace> -- Trim samples from right of trace"}, | |
1548 | {"mtrim", CmdMtrim, 1, "<start> <stop> -- Trim out samples from the specified start to the specified stop"}, | |
1549 | {"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"}, | |
1550 | {"norm", CmdNorm, 1, "Normalize max/min to +/-128"}, | |
1551 | {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, | |
1552 | {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"}, | |
1553 | {"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"}, | |
1554 | {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"}, | |
1555 | {"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"}, | |
1556 | {"setgraphmarkers", CmdSetGraphMarkers, 1, "[orange_marker] [blue_marker] (in graph window)"}, | |
1557 | {"scale", CmdScale, 1, "<int> -- Set cursor display scale"}, | |
1558 | {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"}, | |
1559 | {"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"}, | |
1560 | {"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, | |
1561 | {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, | |
1562 | {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, | |
1563 | {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, | |
1564 | {NULL, NULL, 0, NULL} | |
1565 | }; | |
1566 | ||
1567 | int CmdData(const char *Cmd) | |
1568 | { | |
1569 | CmdsParse(CommandTable, Cmd); | |
1570 | return 0; | |
1571 | } | |
1572 | ||
1573 | int CmdHelp(const char *Cmd) | |
1574 | { | |
1575 | CmdsHelp(CommandTable); | |
1576 | return 0; | |
1577 | } |