mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-21 07:46:12 +08:00
417 lines
14 KiB
C
417 lines
14 KiB
C
//-----------------------------------------------------------------------------
|
|
//
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Low frequency fdx-b tag commands
|
|
// Differential Biphase, rf/32, 128 bits (known)
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include "cmdlffdx.h"
|
|
|
|
/*
|
|
FDX-B ISO11784/85 demod (aka animal tag) BIPHASE, inverted, rf/32, with preamble of 00000000001 (128bits)
|
|
8 databits + 1 parity (1)
|
|
CIITT 16 checksum
|
|
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 ]
|
|
*/
|
|
|
|
static int CmdHelp(const char *Cmd);
|
|
|
|
int usage_lf_fdx_clone(void){
|
|
PrintAndLog("Clone a FDX-B animal tag to a T55x7 tag.");
|
|
PrintAndLog("Usage: lf fdx clone [h] <country id> <animal id> <Q5>");
|
|
PrintAndLog("Options:");
|
|
PrintAndLog(" h : This help");
|
|
PrintAndLog(" <country id> : Country id");
|
|
PrintAndLog(" <animal id> : Animal id");
|
|
// has extended data?
|
|
//reserved/rfu
|
|
//is animal tag
|
|
// extended data
|
|
PrintAndLog(" <Q5> : Specify write to Q5 (t5555 instead of t55x7)");
|
|
PrintAndLog("");
|
|
PrintAndLog("Sample: lf fdx clone 999 112233");
|
|
return 0;
|
|
}
|
|
|
|
int usage_lf_fdx_sim(void) {
|
|
PrintAndLog("Enables simulation of FDX-B animal tag");
|
|
PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
|
|
PrintAndLog("");
|
|
PrintAndLog("Usage: lf fdx sim [h] <country id> <animal id>");
|
|
PrintAndLog("Options:");
|
|
PrintAndLog(" h : This help");
|
|
PrintAndLog(" <country id> : Country ID");
|
|
PrintAndLog(" <animal id> : Animal ID");
|
|
PrintAndLog("");
|
|
PrintAndLog("Sample: lf fdx sim 999 112233");
|
|
return 0;
|
|
}
|
|
|
|
|
|
// Ask/Biphase Demod then try to locate an ISO 11784/85 ID
|
|
// BitStream must contain previously askrawdemod and biphasedemoded data
|
|
int detectFDXB(uint8_t *dest, size_t *size) {
|
|
//make sure buffer has enough data
|
|
if (*size < 128*2) return -1;
|
|
size_t startIdx = 0;
|
|
uint8_t preamble[] = {0,0,0,0,0,0,0,0,0,0,1};
|
|
if (!preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx))
|
|
return -2; //preamble not found
|
|
if (*size != 128) return -3; //wrong demoded size
|
|
//return start position
|
|
return (int)startIdx;
|
|
}
|
|
|
|
// clearing the topbit needed for the preambl detection.
|
|
static void verify_values(uint32_t countryid, uint64_t animalid){
|
|
if ((animalid & 0x3FFFFFFFFF) != animalid) {
|
|
animalid &= 0x3FFFFFFFFF;
|
|
PrintAndLog("Animal ID Truncated to 38bits: %"PRIx64, animalid);
|
|
}
|
|
if ( (countryid & 0x3ff) != countryid ) {
|
|
countryid &= 0x3ff;
|
|
PrintAndLog("Country ID Truncated to 10bits: %03d", countryid);
|
|
}
|
|
}
|
|
|
|
int getFDXBits(uint64_t national_id, uint16_t country, uint8_t isanimal, uint8_t isextended, uint32_t extended, uint8_t *bits) {
|
|
|
|
// add preamble ten 0x00 and one 0x01
|
|
memset(bits, 0x00, 10);
|
|
bits[10] = 1;
|
|
|
|
// 128bits
|
|
// every 9th bit is 0x01, but we can just fill the rest with 0x01 and overwrite
|
|
memset(bits, 0x01, 128);
|
|
|
|
// add preamble ten 0x00 and one 0x01
|
|
memset(bits, 0x00, 10);
|
|
|
|
// add reserved
|
|
num_to_bytebitsLSBF(0x00, 7, bits + 66);
|
|
num_to_bytebitsLSBF(0x00 >> 7, 7, bits + 74);
|
|
|
|
// add animal flag - OK
|
|
bits[65] = isanimal;
|
|
|
|
// add extended flag - OK
|
|
bits[81] = isextended;
|
|
|
|
// add national code 40bits - OK
|
|
num_to_bytebitsLSBF(national_id >> 0, 8, bits+11);
|
|
num_to_bytebitsLSBF(national_id >> 8, 8, bits+20);
|
|
num_to_bytebitsLSBF(national_id >> 16, 8, bits+29);
|
|
num_to_bytebitsLSBF(national_id >> 24, 8, bits+38);
|
|
num_to_bytebitsLSBF(national_id >> 32, 6, bits+47);
|
|
|
|
// add country code - OK
|
|
num_to_bytebitsLSBF(country >> 0, 2, bits+53);
|
|
num_to_bytebitsLSBF(country >> 2, 8, bits+56);
|
|
|
|
// add crc-16 - OK
|
|
uint8_t raw[8];
|
|
for (uint8_t i=0; i<8; ++i)
|
|
raw[i] = bytebits_to_byte(bits + 11 + i * 9, 8);
|
|
|
|
uint16_t crc = crc16_ccitt_kermit(raw, 8);
|
|
num_to_bytebitsLSBF(crc >> 0, 8, bits+83);
|
|
num_to_bytebitsLSBF(crc >> 8, 8, bits+92);
|
|
|
|
// extended data - OK
|
|
num_to_bytebitsLSBF( extended >> 0 , 8, bits+101);
|
|
num_to_bytebitsLSBF( extended >> 8 , 8, bits+110);
|
|
num_to_bytebitsLSBF( extended >> 16, 8, bits+119);
|
|
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 offset = 0, 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: Error - FDXB no data or error found %d, clock: %d", errCnt, clk);
|
|
return 0;
|
|
}
|
|
|
|
errCnt = BiphaseRawDecode(BitStream, &size, &offset, 1);
|
|
if (errCnt < 0 || errCnt > maxErr ) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB BiphaseRawDecode: %d", errCnt);
|
|
return 0;
|
|
}
|
|
|
|
int preambleIndex = detectFDXB(BitStream, &size);
|
|
if (preambleIndex < 0){
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB preamble not found :: %d",preambleIndex);
|
|
return 0;
|
|
}
|
|
if (size != 128) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - FDXB 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("DEBUG: Error - FDXB error removeParity:: %d", size);
|
|
return 0;
|
|
}
|
|
PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found:");
|
|
|
|
//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("Reserved/RFU: %u", reservedCode);
|
|
PrintAndLog("Animal Tag: %s", animalBit ? "True" : "False");
|
|
PrintAndLog("Has extended data: %s [0x%X]", dataBlockBit ? "True" : "False", extended);
|
|
PrintAndLog("CRC: 0x%04X - [%04X] - %s", crc16, calcCrc, (calcCrc == crc16) ? "Passed" : "Failed");
|
|
|
|
if (g_debugMode) {
|
|
PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
|
|
char *bin = sprint_bin_break(BitStream,size,16);
|
|
PrintAndLog("DEBUG BinStream:\n%s",bin);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
//see ASKDemod for what args are accepted
|
|
//almost the same demod as cmddata.c/CmdFDXBdemodBI
|
|
int CmdFdxDemod(const char *Cmd) {
|
|
|
|
//Differential Biphase / di-phase (inverted biphase)
|
|
//get binary from ask wave
|
|
if (!ASKbiphaseDemod("0 32 1 0", false)) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - FDX-B ASKbiphaseDemod failed");
|
|
return 0;
|
|
}
|
|
size_t size = DemodBufferLen;
|
|
int preambleIndex = detectFDXB(DemodBuffer, &size);
|
|
if (preambleIndex < 0){
|
|
if (g_debugMode){
|
|
if (preambleIndex == -1)
|
|
PrintAndLog("DEBUG: Error - FDX-B too few bits found");
|
|
else if (preambleIndex == -2)
|
|
PrintAndLog("DEBUG: Error - FDX-B preamble not found");
|
|
else if (preambleIndex == -3)
|
|
PrintAndLog("DEBUG: Error - FDX-B Size not correct: %d", size);
|
|
else
|
|
PrintAndLog("DEBUG: Error - FDX-B ans: %d", preambleIndex);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// set and leave DemodBuffer intact
|
|
setDemodBuf(DemodBuffer, 128, preambleIndex);
|
|
setClockGrid(g_DemodClock, g_DemodStartIdx + (preambleIndex*g_DemodClock));
|
|
// remove marker bits (1's every 9th digit after preamble) (pType = 2)
|
|
size = removeParity(DemodBuffer, 11, 9, 2, 117);
|
|
if ( size != 104 ) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - FDX-B error removeParity: %d", size);
|
|
return 0;
|
|
}
|
|
|
|
//got a good demod
|
|
uint64_t NationalCode = ((uint64_t)(bytebits_to_byteLSBF(DemodBuffer+32,6)) << 32) | bytebits_to_byteLSBF(DemodBuffer,32);
|
|
uint16_t countryCode = bytebits_to_byteLSBF(DemodBuffer+38,10);
|
|
uint8_t dataBlockBit = DemodBuffer[48];
|
|
uint32_t reservedCode = bytebits_to_byteLSBF(DemodBuffer+49,14);
|
|
uint8_t animalBit = DemodBuffer[63];
|
|
uint32_t crc16 = bytebits_to_byteLSBF(DemodBuffer+64,16);
|
|
uint32_t extended = bytebits_to_byteLSBF(DemodBuffer+80,24);
|
|
uint64_t rawid = (uint64_t)(bytebits_to_byte(DemodBuffer,32)) << 32 | bytebits_to_byte(DemodBuffer+32, 32);
|
|
uint8_t raw[8];
|
|
num_to_bytes(rawid, 8, raw);
|
|
|
|
|
|
uint16_t calcCrc = crc16_ccitt_kermit(raw, 8);
|
|
|
|
PrintAndLog("\nFDX-B / ISO 11784/5 Animal Tag ID Found: Raw : %s", sprint_hex(raw, 8));
|
|
PrintAndLog("Animal ID %04u-%012" PRIu64, countryCode, NationalCode);
|
|
PrintAndLog("National Code %012" PRIu64 " (0x%" PRIx64 ")", NationalCode, NationalCode);
|
|
PrintAndLog("Country Code %04u", countryCode);
|
|
PrintAndLog("Reserved/RFU %u (0x04%X)", reservedCode, reservedCode);
|
|
PrintAndLog("Animal Tag %s", animalBit ? "True" : "False");
|
|
PrintAndLog("Has extended data %s [0x%X]", dataBlockBit ? "True" : "False", extended);
|
|
PrintAndLog("CRC-16 0x%04X - 0x%04X [%s]", crc16, calcCrc, (calcCrc == crc16) ? "Ok" : "Failed");
|
|
|
|
if (g_debugMode) {
|
|
PrintAndLog("Start marker %d; Size %d", preambleIndex, size);
|
|
char *bin = sprint_bin_break(DemodBuffer, size, 16);
|
|
PrintAndLog("DEBUG bin stream:\n%s", bin);
|
|
}
|
|
|
|
// set block 0 for later
|
|
//g_DemodConfig = T55x7_MODULATION_DIPHASE | T55x7_BITRATE_RF_32 | 4 << T55x7_MAXBLOCK_SHIFT;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int CmdFdxRead(const char *Cmd) {
|
|
lf_read(true, 10000);
|
|
return CmdFdxDemod(Cmd);
|
|
}
|
|
|
|
int CmdFdxClone(const char *Cmd) {
|
|
|
|
uint32_t countryid = 0;
|
|
uint64_t animalid = 0;
|
|
uint32_t blocks[5] = {T55x7_MODULATION_DIPHASE | T55x7_BITRATE_RF_32 | 4 << T55x7_MAXBLOCK_SHIFT, 0, 0, 0, 0};
|
|
uint8_t bits[128];
|
|
uint8_t *bs = bits;
|
|
memset(bs, 0, sizeof(bits));
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_fdx_clone();
|
|
|
|
countryid = param_get32ex(Cmd, 0, 0, 10);
|
|
animalid = param_get64ex(Cmd, 1, 0, 10);
|
|
|
|
//Q5
|
|
if (param_getchar(Cmd, 2) == 'Q' || param_getchar(Cmd, 2) == 'q')
|
|
blocks[0] = T5555_MODULATION_BIPHASE | T5555_INVERT_OUTPUT | T5555_SET_BITRATE(32) | 4 << T5555_MAXBLOCK_SHIFT;
|
|
|
|
verify_values(countryid, animalid);
|
|
|
|
// getFDXBits(uint64_t national_id, uint16_t country, uint8_t isanimal, uint8_t isextended, uint32_t extended, uint8_t *bits)
|
|
if ( !getFDXBits(animalid, countryid, 1, 0, 0, bs)) {
|
|
PrintAndLog("Error with tag bitstream generation.");
|
|
return 1;
|
|
}
|
|
|
|
// convert from bit stream to block data
|
|
blocks[1] = bytebits_to_byte(bs,32);
|
|
blocks[2] = bytebits_to_byte(bs+32,32);
|
|
blocks[3] = bytebits_to_byte(bs+64,32);
|
|
blocks[4] = bytebits_to_byte(bs+96,32);
|
|
|
|
PrintAndLog("Preparing to clone FDX-B to T55x7 with animal ID: %04u-%"PRIu64, countryid, animalid);
|
|
PrintAndLog("Blk | Data ");
|
|
PrintAndLog("----+------------");
|
|
PrintAndLog(" 00 | 0x%08x", blocks[0]);
|
|
PrintAndLog(" 01 | 0x%08x", blocks[1]);
|
|
PrintAndLog(" 02 | 0x%08x", blocks[2]);
|
|
PrintAndLog(" 03 | 0x%08x", blocks[3]);
|
|
PrintAndLog(" 04 | 0x%08x", blocks[4]);
|
|
|
|
UsbCommand resp;
|
|
UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
|
|
|
|
for (int i = 4; i >= 0; --i) {
|
|
c.arg[0] = blocks[i];
|
|
c.arg[1] = i;
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
|
|
PrintAndLog("Error occurred, device did not respond during write operation.");
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int CmdFdxSim(const char *Cmd) {
|
|
uint32_t countryid = 0;
|
|
uint64_t animalid = 0;
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_fdx_sim();
|
|
|
|
countryid = param_get32ex(Cmd, 0, 0, 10);
|
|
animalid = param_get64ex(Cmd, 1, 0, 10);
|
|
|
|
verify_values(countryid, animalid);
|
|
|
|
uint8_t clk = 32, encoding = 2, separator = 0, invert = 1;
|
|
uint16_t arg1, arg2;
|
|
size_t size = 128;
|
|
arg1 = clk << 8 | encoding;
|
|
arg2 = invert << 8 | separator;
|
|
|
|
PrintAndLog("Simulating FDX-B animal ID: %04u-%"PRIu64, countryid, animalid);
|
|
|
|
UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
|
|
|
|
//getFDXBits(uint64_t national_id, uint16_t country, uint8_t isanimal, uint8_t isextended, uint32_t extended, uint8_t *bits)
|
|
getFDXBits(animalid, countryid, 1, 0, 0, c.d.asBytes);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
return 0;
|
|
}
|
|
|
|
static command_t CommandTable[] = {
|
|
{"help", CmdHelp, 1, "This help"},
|
|
{"demod", CmdFdxDemod, 1, "Attempt to extract FDX-B ISO11784/85 data from the GraphBuffer"},
|
|
{"read", CmdFdxRead, 0, "Attempt to read and extract FDX-B ISO11784/85 data"},
|
|
{"clone", CmdFdxClone, 0, "Clone animal ID tag to T55x7 (or to q5/T5555)"},
|
|
{"sim", CmdFdxSim, 0, "Animal ID tag simulator"},
|
|
{NULL, NULL, 0, NULL}
|
|
};
|
|
|
|
int CmdLFFdx(const char *Cmd) {
|
|
clearCommandBuffer();
|
|
CmdsParse(CommandTable, Cmd);
|
|
return 0;
|
|
}
|
|
|
|
int CmdHelp(const char *Cmd) {
|
|
CmdsHelp(CommandTable);
|
|
return 0;
|
|
}
|