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split fdx-b demod to its own file

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added @iceman1001 s read/sim/clone commands for fdx--b
check changelog.md for cli changes!
This commit is contained in:
marshmellow42 2017-03-26 08:09:40 -04:00
commit 4db6f3bbb9
7 changed files with 345 additions and 96 deletions
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93
client/cmddata.c
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@ -850,98 +850,6 @@ int CmdFSKdemodParadox(const char *Cmd)
return 1;
}
// FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
// 8 databits + 1 parity (1)
// CIITT 16 chksum
// NATIONAL CODE, ICAR database
// COUNTRY CODE (ISO3166) or http://cms.abvma.ca/uploads/ManufacturersISOsandCountryCodes.pdf
// FLAG (animal/non-animal)
/*
38 IDbits
10 country code
1 extra app bit
14 reserved bits
1 animal bit
16 ccitt CRC chksum over 64bit ID CODE.
24 appli bits.
-- sample: 985121004515220 [ 37FF65B88EF94 ]
*/
int CmdFDXBdemodBI(const char *Cmd){
int invert = 1;
int clk = 32;
int errCnt = 0;
int maxErr = 0;
uint8_t BitStream[MAX_DEMOD_BUF_LEN];
size_t size = getFromGraphBuf(BitStream);
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;
}
errCnt = BiphaseRawDecode(BitStream, &size, maxErr, 1);
if (errCnt < 0 || errCnt > maxErr ) {
if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d", errCnt);
return 0;
}
int preambleIndex = FDXBdemodBI(BitStream, &size);
if (preambleIndex < 0){
if (g_debugMode) PrintAndLog("Error FDXBDemod , no startmarker found :: %d",preambleIndex);
return 0;
}
if (size != 128) {
if (g_debugMode) PrintAndLog("Error incorrect data length found");
return 0;
}
setDemodBuf(BitStream, 128, preambleIndex);
// remove marker bits (1's every 9th digit after preamble) (pType = 2)
size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
if ( size != 104 ) {
if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
return 0;
}
if (g_debugMode) {
char *bin = sprint_bin_break(BitStream,size,16);
PrintAndLog("DEBUG BinStream:\n%s",bin);
}
PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
if (g_debugMode) PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
//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];
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) | bytebits_to_byte(BitStream+32,32);
uint8_t raw[8];
num_to_bytes(rawid, 8, raw);
if (g_debugMode) PrintAndLog("Raw ID Hex: %s", sprint_hex(raw,8));
uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
PrintAndLog("Animal ID: %04u-%012" PRIu64, countryCode, NationalCode);
PrintAndLog("National Code: %012" PRIu64, NationalCode);
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%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
PrintAndLog("Extended: 0x%X\n", extended);
return 1;
}
//by marshmellow
//attempt to psk1 demod graph buffer
int PSKDemod(const char *Cmd, bool verbose)
@ -1717,7 +1625,6 @@ static command_t CommandTable[] =
{"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"},
{"dec", CmdDec, 1, "Decimate samples"},
{"detectclock", CmdDetectClockRate, 1, "[modulation] Detect clock rate of wave in GraphBuffer (options: 'a','f','n','p' for ask, fsk, nrz, psk respectively)"},
{"fdxbdemod", CmdFDXBdemodBI , 1, "Demodulate a FDX-B ISO11784/85 Biphase tag from GraphBuffer"},
//{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
{"fskparadoxdemod", CmdFSKdemodParadox, 1, "Demodulate a Paradox FSK tag from GraphBuffer"},
{"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},