#include "crc.h"
#include "crc16.h"
-
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
uint8_t g_debugMode;
size_t DemodBufferLen;
setDemodBuf(BitStream,BitLen,0);
if (verbose || g_debugMode){
if (errCnt>0) PrintAndLog("# Errors during Demoding (shown as 7 in bit stream): %d",errCnt);
- if (askType) PrintAndLog("ASK/Manchester decoded bitstream:");
- else PrintAndLog("ASK/Raw decoded bitstream:");
+ if (askType) PrintAndLog("ASK/Manchester - Clock: %d - Decoded bitstream:",clk);
+ else PrintAndLog("ASK/Raw - Clock: %d - Decoded bitstream:",clk);
// Now output the bitstream to the scrollback by line of 16 bits
printDemodBuff();
int errCnt=0;
size_t size=0;
int invert=0;
- size_t maxErr = 20;
+ int maxErr = 20;
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) > 5 || cmdp == 'h' || cmdp == 'H') {
PrintAndLog("Usage: data manrawdecode [invert] [maxErr]");
int ASKbiphaseDemod(const char *Cmd, bool verbose)
{
//ask raw demod GraphBuffer first
- int offset=0, clk=0, invert=0, maxErr=0, ans=0;
- ans = sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
- if (ans>0)
- ans = ASKDemod(Cmd+2, FALSE, FALSE, 0);
- else
- ans = ASKDemod(Cmd, FALSE, FALSE, 0);
- if (!ans) {
- if (g_debugMode || verbose) PrintAndLog("Error AskDemod: %d", ans);
- return 0;
- }
-
- //attempt to Biphase decode DemodBuffer
- size_t size = DemodBufferLen;
+ int offset=0, clk=0, invert=0, maxErr=0;
+ sscanf(Cmd, "%i %i %i %i", &offset, &clk, &invert, &maxErr);
+
uint8_t BitStream[MAX_DEMOD_BUF_LEN];
- memcpy(BitStream, DemodBuffer, DemodBufferLen);
- int errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
+ size_t size = getFromGraphBuf(BitStream);
+ int errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
+ if ( errCnt < 0 || errCnt > maxErr ) {
+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
+ return 0;
+ }
+
+ //attempt to Biphase decode BitStream
+ errCnt = BiphaseRawDecode(BitStream, &size, offset, invert);
if (errCnt < 0){
if (g_debugMode || verbose) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
return 0;
//success set DemodBuffer and return
setDemodBuf(BitStream, size, 0);
if (g_debugMode || verbose){
- PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
+ PrintAndLog("Biphase Decoded using offset: %d - clock: %d - # errors:%d - data:",offset,clk,errCnt);
printDemodBuff();
}
return 1;
errCnt = askdemod(BitStream, &size, &clk, &invert, maxErr, 0, 0);
if ( errCnt < 0 || errCnt > maxErr ) {
- if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: 32", errCnt);
+ if (g_debugMode) PrintAndLog("DEBUG: no data or error found %d, clock: %d", errCnt, clk);
return 0;
}
setDemodBuf(BitStream, 128, preambleIndex);
- size = removeParity(BitStream, preambleIndex + 11, 9, 2, 128-11);
+ // remove but don't verify parity. (pType = 2)
+ size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
if ( size <= 103 ) {
if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
return 0;
PrintAndLog("DEBUG BinStream:\n%s",bin);
}
PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
- if (g_debugMode) PrintAndLog("startmarker %d; Size %d", preambleIndex, size);
+ if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
- //got a good demod
-
- //marshmellows
+ //got a good demod
uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(BitStream+32,6)) << 32) | bytebits_to_byteLSBF(BitStream,32);
uint32_t countryCode = bytebits_to_byteLSBF(BitStream+38,10);
uint8_t dataBlockBit = BitStream[48];
uint32_t reservedCode = bytebits_to_byteLSBF(BitStream+49,14);
uint8_t animalBit = BitStream[63];
-
- uint16_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
+ uint32_t crc16 = bytebits_to_byteLSBF(BitStream+64,16);
uint32_t extended = bytebits_to_byteLSBF(BitStream+80,24);
- uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream+32,32) << 32) | bytebits_to_byte(BitStream,32);
+ uint64_t rawid = ((uint64_t)bytebits_to_byte(BitStream,32)<<32) | bytebits_to_byte(BitStream+32,32);
uint8_t raw[8];
num_to_bytes(rawid, 8, raw);
- PrintAndLog("%s", sprint_hex(raw,8));
- uint16_t crcCalc = crc16_ccitt_rev( raw ,8);
-
- PrintAndLog("Animal ID: %u-%012llu", countryCode, NationalCode);
+
+ if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
+
+ uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
+ PrintAndLog("Animal ID: %04u-%012llu", countryCode, NationalCode);
PrintAndLog("National Code: %012llu", NationalCode);
- PrintAndLog("CountryCode: %u", countryCode);
+ PrintAndLog("CountryCode: %04u", countryCode);
PrintAndLog("Extended Data: %s", dataBlockBit ? "True" : "False");
PrintAndLog("reserved Code: %u", reservedCode);
PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
- PrintAndLog("CRC: 0x%02X", crc16);
- PrintAndLog("CRC : %X == %X %s", crc16, crcCalc, ( crcCalc == crc16 )?"ok":"!" );
- PrintAndLog("Extended: 0x%X", extended);
+ PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
+ PrintAndLog("Extended: 0x%X\n", extended);
-/*
- //uint16_t crcCalc = crc16_ccitt( ByteStream, 8);
- PrintAndLog("Application ID: %04X", applicationid);
- */
return 1;
-
}
clk=0;
}
if (invert != 0 && invert != 1) {
- if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
+ if (g_debugMode || verbose) PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
- if (BitLen==0) return -1;
+ if (BitLen==0) return 0;
uint8_t carrier=countFC(BitStream, BitLen, 0);
if (carrier!=2 && carrier!=4 && carrier!=8){
//invalid carrier
projects / proxmark3-svn / blobdiff