#include "lfdemod.h"
#include "usb_cmd.h"
#include "crc.h"
+#include "crc16.h"
+#include "loclass/cipherutils.h"
uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
-uint8_t g_debugMode;
-size_t DemodBufferLen;
+uint8_t g_debugMode=0;
+size_t DemodBufferLen=0;
static int CmdHelp(const char *Cmd);
//set the demod buffer with given array of binary (one bit per byte)
}
int usage_data_printdemodbuf(){
- PrintAndLog("Usage: data printdemodbuffer x o <offset>");
+ PrintAndLog("Usage: data printdemodbuffer x o <offset> l <length>");
PrintAndLog("Options: ");
PrintAndLog(" h This help");
PrintAndLog(" x output in hex (omit for binary output)");
PrintAndLog(" o <offset> enter offset in # of bits");
+ PrintAndLog(" l <length> enter length to print in # of bits or hex characters respectively");
return 0;
}
char hex[512]={0x00};
bool hexMode = false;
bool errors = false;
- uint8_t offset = 0;
+ uint32_t offset = 0; //could be size_t but no param_get16...
+ uint32_t length = 512;
char cmdp = 0;
while(param_getchar(Cmd, cmdp) != 0x00)
{
break;
case 'o':
case 'O':
- offset = param_get8(Cmd, cmdp+1);
+ offset = param_get32ex(Cmd, cmdp+1, 0, 10);
if (!offset) errors = true;
cmdp += 2;
break;
+ case 'l':
+ case 'L':
+ length = param_get32ex(Cmd, cmdp+1, 512, 10);
+ if (!length) errors = true;
+ cmdp += 2;
+ break;
default:
PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
}
//Validations
if(errors) return usage_data_printdemodbuf();
-
- int numBits = (DemodBufferLen-offset) & 0x7FC; //make sure we don't exceed our string
+ length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length;
+ int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
if (hexMode){
char *buf = (char *) (DemodBuffer + offset);
+ numBits = (numBits > sizeof(hex)) ? sizeof(hex) : numBits;
numBits = binarraytohex(hex, buf, numBits);
if (numBits==0) return 0;
PrintAndLog("DemodBuffer: %s",hex);
} else {
- //setDemodBuf(DemodBuffer, DemodBufferLen-offset, offset);
- char *bin = sprint_bin_break(DemodBuffer+offset,numBits,16);
- PrintAndLog("DemodBuffer:\n%s",bin);
+ PrintAndLog("DemodBuffer:\n%s", sprint_bin_break(DemodBuffer+offset,numBits,16));
}
return 1;
}
int AskEm410xDemod(const char *Cmd, uint32_t *hi, uint64_t *lo, bool verbose)
{
- if (!ASKDemod(Cmd, FALSE, FALSE, 1)) return 0;
+ bool st = TRUE;
+ if (!ASKDemod_ext(Cmd, FALSE, FALSE, 1, &st)) return 0;
return AskEm410xDecode(verbose, hi, lo);
}
//verbose will print results and demoding messages
//emSearch will auto search for EM410x format in bitstream
//askType switches decode: ask/raw = 0, ask/manchester = 1
-int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType)
-{
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck) {
int invert=0;
int clk=0;
int maxErr=100;
char amp = param_getchar(Cmd, 0);
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &);
- if (!maxLen) maxLen = 512*64;
+ if (!maxLen) maxLen = BIGBUF_SIZE;
if (invert != 0 && invert != 1) {
PrintAndLog("Invalid argument: %s", Cmd);
return 0;
if (amp == 'a' || amp == 'A') askAmp=1;
size_t BitLen = getFromGraphBuf(BitStream);
if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
- if (BitLen<255) return 0;
- if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
-
+ if (BitLen < 255) return 0;
+ if (maxLen < BitLen && maxLen != 0) BitLen = maxLen;
+ int foundclk = 0;
+ bool st = false;
+ if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
+ if (st) {
+ *stCheck = st;
+ clk = (clk == 0) ? foundclk : clk;
+ if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
+ }
int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
if (errCnt<0 || BitLen<16){ //if fatal error (or -1)
if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
}
- if (errCnt>maxErr){
+ if (errCnt > maxErr){
if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
return 0;
}
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();
}
return 1;
}
+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
+ bool st = false;
+ return ASKDemod_ext(Cmd, verbose, emSearch, askType, &st);
+}
//by marshmellow
//takes 5 arguments - clock, invert, maxErr, maxLen as integers and amplify as char == 'a'
{
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod am [clock] <invert> [maxError] [maxLen] [amplify]");
+ PrintAndLog("Usage: data rawdemod am <s> [clock] <invert> [maxError] [maxLen] [amplify]");
+ PrintAndLog(" ['s'] optional, check for Sequence Terminator");
PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
PrintAndLog(" <invert>, 1 to invert output");
PrintAndLog(" [set maximum allowed errors], default = 100");
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");
return 0;
}
- return ASKDemod(Cmd, TRUE, TRUE, 1);
+ bool st = TRUE;
+ if (Cmd[0]=='s')
+ return ASKDemod_ext(Cmd++, TRUE, TRUE, 1, &st);
+ else if (Cmd[1] == 's')
+ return ASKDemod_ext(Cmd+=2, TRUE, TRUE, 1, &st);
+ else
+ return ASKDemod(Cmd, TRUE, TRUE, 1);
}
//by marshmellow
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+1, FALSE, FALSE, 0);
- else
- ans = ASKDemod(Cmd, FALSE, FALSE, 0);
- if (!ans) {
- if (g_debugMode || verbose) PrintAndLog("Error AskDemod: %d", ans);
- return 0;
- }
+ 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];
+ size_t size = getFromGraphBuf(BitStream);
+ //invert here inverts the ask raw demoded bits which has no effect on the demod, but we need the pointer
+ 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 DemodBuffer
- size_t size = DemodBufferLen;
- uint8_t BitStream[MAX_DEMOD_BUF_LEN];
- memcpy(BitStream, DemodBuffer, DemodBufferLen);
- int errCnt = BiphaseRawDecode(BitStream, &size, offset, 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;
if ((idx+1) % 5 == 0){
//spacer bit - should be 0
if (DemodBuffer[startIdx+idx] != 0) {
- if (g_debugMode) PrintAndLog("Error spacer not 0: %d, pos: %d",DemodBuffer[startIdx+idx],startIdx+idx);
+ if (g_debugMode) PrintAndLog("Error spacer not 0: %u, pos: %u", (unsigned int)DemodBuffer[startIdx+idx],(unsigned int)(startIdx+idx));
return 0;
}
continue;
if (keyCnt<8){ //lsb first
xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
keyCnt++;
- if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", xorKey);
+ if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", (unsigned int)xorKey);
continue;
}
//lsb first
ByteStream[ByteCnt] = ByteStream[ByteCnt] | (DemodBuffer[startIdx+idx]<<bitCnt);
bitCnt++;
if (bitCnt % 8 == 0){
- if (g_debugMode) PrintAndLog("byte %d: %02x",ByteCnt,ByteStream[ByteCnt]);
+ if (g_debugMode) PrintAndLog("byte %u: %02x", (unsigned int)ByteCnt, ByteStream[ByteCnt]);
bitCnt=0;
ByteCnt++;
}
}
for (uint8_t i = 0; i < ByteCnt; i++){
ByteStream[i] ^= xorKey; //xor
- if (g_debugMode) PrintAndLog("byte %d after xor: %02x", i, ByteStream[i]);
+ if (g_debugMode) PrintAndLog("byte %u after xor: %02x", (unsigned int)i, ByteStream[i]);
}
//now ByteStream contains 64 bytes of decrypted raw tag data
//
if (fmtLen==36){
FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
- PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d", fmtLen, FC, Card);
} else if(fmtLen==26){
FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
- PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",fmtLen,FC,Card);
+ PrintAndLog("G-Prox-II Found: FmtLen %d, FC %d, Card %d",(unsigned int)fmtLen,FC,Card);
} else {
- PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+ PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
}
PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
setDemodBuf(DemodBuffer+ans, 96, 0);
return 1;
}
+//by marshmellow
+//see ASKDemod for what args are accepted
+int CmdVikingDemod(const char *Cmd)
+{
+ if (!ASKDemod(Cmd, false, false, 1)) {
+ if (g_debugMode) PrintAndLog("ASKDemod failed");
+ return 0;
+ }
+ size_t size = DemodBufferLen;
+ //call lfdemod.c demod for Viking
+ int ans = VikingDemod_AM(DemodBuffer, &size);
+ if (ans < 0) {
+ if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
+ return 0;
+ }
+ //got a good demod
+ uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
+ uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+ uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
+ uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
+ PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, (unsigned int) checksum);
+ PrintAndLog("Raw: %08X%08X", raw1,raw2);
+ setDemodBuf(DemodBuffer+ans, 64, 0);
+ return 1;
+}
+
//by marshmellow - see ASKDemod
int Cmdaskrawdemod(const char *Cmd)
{
char *GetFSKType(uint8_t fchigh, uint8_t fclow, uint8_t invert)
{
- char *fskType;
+ static char fType[8];
+ memset(fType, 0x00, 8);
+ char *fskType = fType;
if (fchigh==10 && fclow==8){
if (invert) //fsk2a
- fskType = "FSK2a";
+ memcpy(fskType, "FSK2a", 5);
else //fsk2
- fskType = "FSK2";
+ memcpy(fskType, "FSK2", 4);
} else if (fchigh == 8 && fclow == 5) {
if (invert)
- fskType = "FSK1";
+ memcpy(fskType, "FSK1", 4);
else
- fskType = "FSK1a";
+ memcpy(fskType, "FSK1a", 5);
} else {
- fskType = "FSK??";
+ memcpy(fskType, "FSK??", 5);
}
return fskType;
}
int FSKrawDemod(const char *Cmd, bool verbose)
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
+ uint8_t rfLen, invert, fchigh, fclow;
//set defaults
- int rfLen = 0;
- int invert = 0;
- int fchigh = 0;
- int fclow = 0;
-
//set options from parameters entered with the command
- sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow);
+ rfLen = param_get8(Cmd, 0);
+ invert = param_get8(Cmd, 1);
+ fchigh = param_get8(Cmd, 2);
+ fclow = param_get8(Cmd, 3);
if (strlen(Cmd)>0 && strlen(Cmd)<=2) {
- if (rfLen==1){
+ if (rfLen==1) {
invert = 1; //if invert option only is used
rfLen = 0;
- }
+ }
}
-
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
if (BitLen==0) return 0;
//get field clock lengths
uint16_t fcs=0;
- if (fchigh==0 || fclow == 0){
+ if (!fchigh || !fclow) {
fcs = countFC(BitStream, BitLen, 1);
- if (fcs==0){
- fchigh=10;
- fclow=8;
- }else{
- fchigh = (fcs >> 8) & 0xFF;
- fclow = fcs & 0xFF;
+ if (!fcs) {
+ fchigh = 10;
+ fclow = 8;
+ } else {
+ fchigh = (fcs >> 8) & 0x00FF;
+ fclow = fcs & 0x00FF;
}
}
//get bit clock length
- if (rfLen==0){
+ if (!rfLen) {
rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
- if (rfLen == 0) rfLen = 50;
+ if (!rfLen) rfLen = 50;
}
- int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
- if (size>0){
+ int size = fskdemod(BitStream, BitLen, rfLen, invert, fchigh, fclow);
+ if (size > 0) {
setDemodBuf(BitStream,size,0);
// Now output the bitstream to the scrollback by line of 16 bits
if (verbose || g_debugMode) {
- PrintAndLog("\nUsing Clock:%d, invert:%d, fchigh:%d, fclow:%d", rfLen, invert, fchigh, fclow);
+ PrintAndLog("\nUsing Clock:%u, invert:%u, fchigh:%u, fclow:%u", (unsigned int)rfLen, (unsigned int)invert, (unsigned int)fchigh, (unsigned int)fclow);
PrintAndLog("%s decoded bitstream:",GetFSKType(fchigh,fclow,invert));
printDemodBuff();
}
return 1;
- } else{
+ } else {
if (g_debugMode) PrintAndLog("no FSK data found");
}
return 0;
//print ioprox ID and some format details
int CmdFSKdemodIO(const char *Cmd)
{
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
- //set defaults
int idx=0;
//something in graphbuffer?
if (GraphTraceLen < 65) {
//print full AWID Prox ID and some bit format details if found
int CmdFSKdemodAWID(const char *Cmd)
{
-
- //int verbose=1;
- //sscanf(Cmd, "%i", &verbose);
-
- //raw fsk demod no manchester decoding no start bit finding just get binary from wave
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t size = getFromGraphBuf(BitStream);
if (size==0) return 0;
uint32_t fc = 0;
uint32_t cardnum = 0;
uint32_t code1 = 0;
- //uint32_t code2 = 0;
if (fmtLen==26){
fc = bytebits_to_byte(BitStream+73, 8);
cardnum = bytebits_to_byte(BitStream+81, 16);
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-%012llu", countryCode, NationalCode);
+ PrintAndLog("National Code: %012llu", 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)
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
return 0;
}
+ if (g_debugMode){
+ PrintAndLog("Carrier: rf/%d",carrier);
+ }
int errCnt=0;
errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
return 0;
}
uint8_t invert=0;
- ans = indala26decode(DemodBuffer, &DemodBufferLen, &invert);
- if (ans < 1) {
+ size_t size = DemodBufferLen;
+ size_t startIdx = indala26decode(DemodBuffer, &size, &invert);
+ if (startIdx < 1 || size > 224) {
if (g_debugMode==1)
PrintAndLog("Error2: %d",ans);
return -1;
}
- char showbits[251]={0x00};
+ setDemodBuf(DemodBuffer, size, startIdx);
if (invert)
if (g_debugMode==1)
PrintAndLog("Had to invert bits");
+ PrintAndLog("BitLen: %d",DemodBufferLen);
//convert UID to HEX
uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7;
- int idx;
- uid1=0;
- uid2=0;
- PrintAndLog("BitLen: %d",DemodBufferLen);
- if (DemodBufferLen==64){
- for( idx=0; idx<64; idx++) {
- uid1=(uid1<<1)|(uid2>>31);
- if (DemodBuffer[idx] == 0) {
- uid2=(uid2<<1)|0;
- showbits[idx]='0';
- } else {
- uid2=(uid2<<1)|1;
- showbits[idx]='1';
- }
- }
- showbits[idx]='\0';
- PrintAndLog("Indala UID=%s (%x%08x)", showbits, uid1, uid2);
- }
- else {
- uid3=0;
- uid4=0;
- uid5=0;
- uid6=0;
- uid7=0;
- for( idx=0; idx<DemodBufferLen; idx++) {
- uid1=(uid1<<1)|(uid2>>31);
- uid2=(uid2<<1)|(uid3>>31);
- uid3=(uid3<<1)|(uid4>>31);
- uid4=(uid4<<1)|(uid5>>31);
- uid5=(uid5<<1)|(uid6>>31);
- uid6=(uid6<<1)|(uid7>>31);
- if (DemodBuffer[idx] == 0) {
- uid7=(uid7<<1)|0;
- showbits[idx]='0';
- }
- else {
- uid7=(uid7<<1)|1;
- showbits[idx]='1';
- }
- }
- showbits[idx]='\0';
- PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7);
+ uid1=bytebits_to_byte(DemodBuffer,32);
+ uid2=bytebits_to_byte(DemodBuffer+32,32);
+ if (DemodBufferLen==64) {
+ PrintAndLog("Indala UID=%s (%x%08x)", sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2);
+ } else {
+ uid3=bytebits_to_byte(DemodBuffer+64,32);
+ uid4=bytebits_to_byte(DemodBuffer+96,32);
+ uid5=bytebits_to_byte(DemodBuffer+128,32);
+ uid6=bytebits_to_byte(DemodBuffer+160,32);
+ uid7=bytebits_to_byte(DemodBuffer+192,32);
+ PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)",
+ sprint_bin_break(DemodBuffer,DemodBufferLen,16), uid1, uid2, uid3, uid4, uid5, uid6, uid7);
}
if (g_debugMode){
PrintAndLog("DEBUG: printing demodbuffer:");
size_t BitLen = getFromGraphBuf(BitStream);
if (BitLen==0) return 0;
int errCnt=0;
- errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
+ errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
if (g_debugMode) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
RepaintGraphWindow();
return 0;
}
-typedef struct {
- uint8_t * buffer;
- uint32_t numbits;
- uint32_t position;
-}BitstreamOut;
-bool _headBit( BitstreamOut *stream)
-{
- int bytepos = stream->position >> 3; // divide by 8
- int bitpos = (stream->position++) & 7; // mask out 00000111
- return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1;
-}
-
-uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b)
+uint8_t getByte(uint8_t bits_per_sample, BitstreamIn* b)
{
int i;
uint8_t val = 0;
for(i =0 ; i < bits_per_sample; i++)
{
- val |= (_headBit(b) << (7-i));
+ val |= (headBit(b) << (7-i));
}
return val;
}
int n = strtol(Cmd, NULL, 0);
- if (n == 0)
- n = sizeof(got);
-
- if (n > sizeof(got))
+ if (n == 0 || n > sizeof(got))
n = sizeof(got);
PrintAndLog("Reading %d bytes from device memory\n", n);
if(bits_per_sample < 8)
{
PrintAndLog("Unpacking...");
- BitstreamOut bout = { got, bits_per_sample * n, 0};
+ BitstreamIn bout = { got, bits_per_sample * n, 0};
int j =0;
for (j = 0; j * bits_per_sample < n * 8 && j < n; j++) {
uint8_t sample = getByte(bits_per_sample, &bout);
int CmdTuneSamples(const char *Cmd)
{
- int timeout = 0;
+ int timeout = 0, arg = FLAG_TUNE_ALL;
+
+ if(*Cmd == 'l') {
+ arg = FLAG_TUNE_LF;
+ } else if (*Cmd == 'h') {
+ arg = FLAG_TUNE_HF;
+ } else if (*Cmd != '\0') {
+ PrintAndLog("use 'tune' or 'tune l' or 'tune h'");
+ return 0;
+ }
+
printf("\nMeasuring antenna characteristics, please wait...");
- UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING};
+ UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING, {arg, 0, 0}};
SendCommand(&c);
UsbCommand resp;
return 0;
}
+int usage_data_bin2hex(){
+ PrintAndLog("Usage: data bin2hex <binary_digits>");
+ PrintAndLog(" This function will ignore all characters not 1 or 0 (but stop reading on whitespace)");
+ return 0;
+}
+
+/**
+ * @brief Utility for conversion via cmdline.
+ * @param Cmd
+ * @return
+ */
+int Cmdbin2hex(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0))
+ {
+ return usage_data_bin2hex();
+ }
+ //Number of digits supplied as argument
+ size_t length = en - bg +1;
+ size_t bytelen = (length+7) / 8;
+ uint8_t* arr = (uint8_t *) malloc(bytelen);
+ memset(arr, 0, bytelen);
+ BitstreamOut bout = { arr, 0, 0 };
+
+ for(; bg <= en ;bg++)
+ {
+ char c = Cmd[bg];
+ if( c == '1') pushBit(&bout, 1);
+ else if( c == '0') pushBit(&bout, 0);
+ else PrintAndLog("Ignoring '%c'", c);
+ }
+
+ if(bout.numbits % 8 != 0)
+ {
+ printf("[padded with %d zeroes]\n", 8-(bout.numbits % 8));
+ }
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+ for(size_t x = 0; x < bytelen ; x++)
+ {
+ printf("%02X", arr[x]);
+ }
+ printf("\n");
+ free(arr);
+ return 0;
+}
+
+int usage_data_hex2bin(){
+
+ PrintAndLog("Usage: data bin2hex <binary_digits>");
+ PrintAndLog(" This function will ignore all non-hexadecimal characters (but stop reading on whitespace)");
+ return 0;
+
+}
+
+int Cmdhex2bin(const char *Cmd)
+{
+ int bg =0, en =0;
+ if(param_getptr(Cmd, &bg, &en, 0))
+ {
+ return usage_data_hex2bin();
+ }
+
+
+ while(bg <= en )
+ {
+ char x = Cmd[bg++];
+ // capitalize
+ if (x >= 'a' && x <= 'f')
+ x -= 32;
+ // convert to numeric value
+ if (x >= '0' && x <= '9')
+ x -= '0';
+ else if (x >= 'A' && x <= 'F')
+ x -= 'A' - 10;
+ else
+ continue;
+
+ //Uses printf instead of PrintAndLog since the latter
+ // adds linebreaks to each printout - this way was more convenient since we don't have to
+ // allocate a string and write to that first...
+
+ for(int i= 0 ; i < 4 ; ++i)
+ printf("%d",(x >> (3 - i)) & 1);
+ }
+ printf("\n");
+
+ return 0;
+}
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
{"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)"},
{"askem410xdemod", CmdAskEM410xDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Demodulate an EM410x tag from GraphBuffer (args optional)"},
{"askgproxiidemod", CmdG_Prox_II_Demod, 1, "Demodulate a G Prox II tag from GraphBuffer"},
+ {"askvikingdemod", CmdVikingDemod, 1, "Demodulate a Viking tag from GraphBuffer"},
{"autocorr", CmdAutoCorr, 1, "[window length] [g] -- Autocorrelation over window - g to save back to GraphBuffer (overwrite)"},
{"biphaserawdecode",CmdBiphaseDecodeRaw,1, "[offset] [invert<0|1>] [maxErr] -- Biphase decode bin stream in DemodBuffer (offset = 0|1 bits to shift the decode start)"},
+ {"bin2hex", Cmdbin2hex, 1, "bin2hex <digits> -- Converts binary to hexadecimal"},
{"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"},
{"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"},
{"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from GraphBuffer"},
//{"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"},
{"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate a HID FSK tag from GraphBuffer"},
{"getbitstream", CmdGetBitStream, 1, "Convert GraphBuffer's >=1 values to 1 and <1 to 0"},
{"grid", CmdGrid, 1, "<x> <y> -- overlay grid on graph window, use zero value to turn off either"},
{"hexsamples", CmdHexsamples, 0, "<bytes> [<offset>] -- Dump big buffer as hex bytes"},
+ {"hex2bin", Cmdhex2bin, 1, "hex2bin <hexadecimal> -- Converts hexadecimal to binary"},
{"hide", CmdHide, 1, "Hide graph window"},
{"hpf", CmdHpf, 1, "Remove DC offset from trace"},
{"load", CmdLoad, 1, "<filename> -- Load trace (to graph window"},
{"manrawdecode", Cmdmandecoderaw, 1, "[invert] [maxErr] -- Manchester decode binary stream in DemodBuffer"},
{"norm", CmdNorm, 1, "Normalize max/min to +/-128"},
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
- {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> -- print the data in the DemodBuffer - 'x' for hex output"},
+ {"printdemodbuffer",CmdPrintDemodBuff, 1, "[x] [o] <offset> [l] <length> -- print the data in the DemodBuffer - 'x' for hex output"},
{"pskindalademod", CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Demodulate an indala tag (PSK1) from GraphBuffer (args optional)"},
{"psknexwatchdemod",CmdPSKNexWatch, 1, "Demodulate a NexWatch tag (nexkey, quadrakey) (PSK1) from GraphBuffer"},
{"rawdemod", CmdRawDemod, 1, "[modulation] ... <options> -see help (h option) -- Demodulate the data in the GraphBuffer and output binary"},
{"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window (GraphBuffer)"},
{"save", CmdSave, 1, "<filename> -- Save trace (from graph window)"},
{"scale", CmdScale, 1, "<int> -- Set cursor display scale"},
- {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"},
+ {"setdebugmode", CmdSetDebugMode, 1, "<0|1|2> -- Turn on or off Debugging Level for lf demods"},
{"shiftgraphzero", CmdGraphShiftZero, 1, "<shift> -- Shift 0 for Graphed wave + or - shift value"},
{"dirthreshold", CmdDirectionalThreshold, 1, "<thres up> <thres down> -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."},
{"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"},
projects / proxmark3-svn / blobdiff