case CMD_HID_SIM_TAG:
CmdHIDsimTAG(c->arg[0], c->arg[1], 1);
break;
+ case CMD_FSK_SIM_TAG:
+ CmdFSKsimTAG(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+ break;
+ case CMD_ASK_SIM_TAG:
+ CmdASKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+ break;
+ case CMD_PSK_SIM_TAG:
+ CmdPSKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+ break;
case CMD_HID_CLONE_TAG:
CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
break;
void AcquireRawBitsTI(void);
void SimulateTagLowFrequency(int period, int gap, int ledcontrol);
void CmdHIDsimTAG(int hi, int lo, int ledcontrol);
+void CmdFSKsimTAG(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream);
+void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream);
+void CmdPSKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream);
void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol);
void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol);
void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol);
AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK;
-#define SHORT_COIL() LOW(GPIO_SSC_DOUT)
-#define OPEN_COIL() HIGH(GPIO_SSC_DOUT)
+ #define SHORT_COIL() LOW(GPIO_SSC_DOUT)
+ #define OPEN_COIL() HIGH(GPIO_SSC_DOUT)
i = 0;
for(;;) {
+ //wait until SSC_CLK goes HIGH
while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {
if(BUTTON_PRESS()) {
DbpString("Stopped");
}
WDT_HIT();
}
-
if (ledcontrol)
LED_D_ON();
if (ledcontrol)
LED_D_OFF();
-
+ //wait until SSC_CLK goes LOW
while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {
if(BUTTON_PRESS()) {
DbpString("Stopped");
return;
}
WDT_HIT();
- }
-
+ }
+
i++;
if(i == period) {
+
i = 0;
if (gap) {
SHORT_COIL();
{
}
-// compose fc/8 fc/10 waveform
-static void fc(int c, int *n) {
+// compose fc/8 fc/10 waveform (FSK2)
+static void fc(int c, int *n)
+{
uint8_t *dest = BigBuf_get_addr();
int idx;
if(c==0) {
dest[((*n)++)]=1;
dest[((*n)++)]=1;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
}
- // an fc/8 encoded bit is a bit pattern of 11000000 x6 = 48 samples
+
+ // an fc/8 encoded bit is a bit pattern of 11110000 x6 = 48 samples
if(c==8) {
for (idx=0; idx<6; idx++) {
dest[((*n)++)]=1;
dest[((*n)++)]=1;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
}
}
- // an fc/10 encoded bit is a bit pattern of 1110000000 x5 = 50 samples
+ // an fc/10 encoded bit is a bit pattern of 1111100000 x5 = 50 samples
if(c==10) {
for (idx=0; idx<5; idx++) {
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
}
}
}
+// compose fc/X fc/Y waveform (FSKx)
+static void fcAll(uint8_t fc, int *n, uint8_t clock, uint16_t *modCnt)
+{
+ uint8_t *dest = BigBuf_get_addr();
+ uint8_t halfFC = fc/2;
+ uint8_t wavesPerClock = clock/fc;
+ uint8_t mod = clock % fc; //modifier
+ uint8_t modAdj = fc/mod; //how often to apply modifier
+ bool modAdjOk = !(fc % mod); //if (fc % mod==0) modAdjOk=TRUE;
+ // loop through clock - step field clock
+ for (uint8_t idx=0; idx < wavesPerClock; idx++){
+ // put 1/2 FC length 1's and 1/2 0's per field clock wave (to create the wave)
+ memset(dest+(*n), 0, fc-halfFC); //in case of odd number use extra here
+ memset(dest+(*n)+(fc-halfFC), 1, halfFC);
+ *n += fc;
+ }
+ if (mod>0) (*modCnt)++;
+ if ((mod>0) && modAdjOk){ //fsk2
+ if ((*modCnt % modAdj) == 0){ //if 4th 8 length wave in a rf/50 add extra 8 length wave
+ memset(dest+(*n), 0, fc-halfFC);
+ memset(dest+(*n)+(fc-halfFC), 1, halfFC);
+ *n += fc;
+ }
+ }
+ if (mod>0 && !modAdjOk){ //fsk1
+ memset(dest+(*n), 0, mod-(mod/2));
+ memset(dest+(*n)+(mod-(mod/2)), 1, mod/2);
+ *n += mod;
+ }
+}
// prepare a waveform pattern in the buffer based on the ID given then
// simulate a HID tag until the button is pressed
*/
if (hi>0xFFF) {
- DbpString("Tags can only have 44 bits.");
+ DbpString("Tags can only have 44 bits. - USE lf simfsk for larger tags");
return;
}
fc(0,&n);
LED_A_OFF();
}
+// prepare a waveform pattern in the buffer based on the ID given then
+// simulate a FSK tag until the button is pressed
+// arg1 contains fcHigh and fcLow, arg2 contains invert and clock
+void CmdFSKsimTAG(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
+{
+ int ledcontrol=1;
+ int n=0, i=0;
+ uint8_t fcHigh = arg1 >> 8;
+ uint8_t fcLow = arg1 & 0xFF;
+ uint16_t modCnt = 0;
+ uint8_t clk = arg2 & 0xFF;
+ uint8_t invert = (arg2 >> 8) & 1;
+
+ for (i=0; i<size; i++){
+ if (BitStream[i] == invert){
+ fcAll(fcLow, &n, clk, &modCnt);
+ } else {
+ fcAll(fcHigh, &n, clk, &modCnt);
+ }
+ }
+ Dbprintf("Simulating with fcHigh: %d, fcLow: %d, clk: %d, invert: %d, n: %d",fcHigh, fcLow, clk, invert, n);
+ /*Dbprintf("DEBUG: First 32:");
+ uint8_t *dest = BigBuf_get_addr();
+ i=0;
+ Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ i+=16;
+ Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ */
+ if (ledcontrol)
+ LED_A_ON();
+
+ SimulateTagLowFrequency(n, 0, ledcontrol);
+
+ if (ledcontrol)
+ LED_A_OFF();
+}
+
+// compose ask waveform for one bit(ASK)
+static void askSimBit(uint8_t c, int *n, uint8_t clock, uint8_t manchester)
+{
+ uint8_t *dest = BigBuf_get_addr();
+ uint8_t halfClk = clock/2;
+ // c = current bit 1 or 0
+ if (manchester){
+ memset(dest+(*n), c, halfClk);
+ memset(dest+(*n) + halfClk, c^1, halfClk);
+ } else {
+ memset(dest+(*n), c, clock);
+ }
+ *n += clock;
+}
+
+// args clock, ask/man or askraw, invert, transmission separator
+void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
+{
+ int ledcontrol = 1;
+ int n=0, i=0;
+ uint8_t clk = (arg1 >> 8) & 0xFF;
+ uint8_t manchester = arg1 & 1;
+ uint8_t separator = arg2 & 1;
+ uint8_t invert = (arg2 >> 8) & 1;
+ for (i=0; i<size; i++){
+ askSimBit(BitStream[i]^invert, &n, clk, manchester);
+ }
+ if (manchester==0 && BitStream[0]==BitStream[size-1]){ //run a second set inverted (for biphase phase)
+ for (i=0; i<size; i++){
+ askSimBit(BitStream[i]^invert^1, &n, clk, manchester);
+ }
+ }
+ if (separator==1) Dbprintf("sorry but separator option not yet available");
+
+ Dbprintf("Simulating with clk: %d, invert: %d, manchester: %d, separator: %d, n: %d",clk, invert, manchester, separator, n);
+ //DEBUG
+ //Dbprintf("First 32:");
+ //uint8_t *dest = BigBuf_get_addr();
+ //i=0;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+
+ if (ledcontrol)
+ LED_A_ON();
+
+ SimulateTagLowFrequency(n, 0, ledcontrol);
+
+ if (ledcontrol)
+ LED_A_OFF();
+}
+
+//carrier can be 2,4 or 8
+static void pskSimBit(uint8_t waveLen, int *n, uint8_t clk, uint8_t *curPhase, bool phaseChg)
+{
+ uint8_t *dest = BigBuf_get_addr();
+ uint8_t halfWave = waveLen/2;
+ //uint8_t idx;
+ int i = 0;
+ if (phaseChg){
+ // write phase change
+ memset(dest+(*n), *curPhase^1, halfWave);
+ memset(dest+(*n) + halfWave, *curPhase, halfWave);
+ *n += waveLen;
+ *curPhase ^= 1;
+ i += waveLen;
+ }
+ //write each normal clock wave for the clock duration
+ for (; i < clk; i+=waveLen){
+ memset(dest+(*n), *curPhase, halfWave);
+ memset(dest+(*n) + halfWave, *curPhase^1, halfWave);
+ *n += waveLen;
+ }
+}
+
+// args clock, carrier, invert,
+void CmdPSKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
+{
+ int ledcontrol=1;
+ int n=0, i=0;
+ uint8_t clk = arg1 >> 8;
+ uint8_t carrier = arg1 & 0xFF;
+ uint8_t invert = arg2 & 0xFF;
+ uint8_t curPhase = 0;
+ for (i=0; i<size; i++){
+ if (BitStream[i] == curPhase){
+ pskSimBit(carrier, &n, clk, &curPhase, FALSE);
+ } else {
+ pskSimBit(carrier, &n, clk, &curPhase, TRUE);
+ }
+ }
+ Dbprintf("Simulating with Carrier: %d, clk: %d, invert: %d, n: %d",carrier, clk, invert, n);
+ //Dbprintf("DEBUG: First 32:");
+ //uint8_t *dest = BigBuf_get_addr();
+ //i=0;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+
+ if (ledcontrol)
+ LED_A_ON();
+ SimulateTagLowFrequency(n, 0, ledcontrol);
+
+ if (ledcontrol)
+ LED_A_OFF();
+}
+
// loop to get raw HID waveform then FSK demodulate the TAG ID from it
void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
{
tries++;
if (BUTTON_PRESS()) return;
} while (num_blocks != max_blocks);
-end:
+ end:
Dbprintf("-----------------------------------------");
Dbprintf("Memory content:");
Dbprintf("-----------------------------------------");
}
//by marshmellow
-void printDemodBuff()
+void printDemodBuff(void)
{
uint32_t i = 0;
int bitLen = DemodBufferLen;
return;
}
-
+int CmdPrintDemodBuff(const char *Cmd)
+{
+ char hex;
+ char printBuff[512]={0x00};
+ uint8_t numBits = DemodBufferLen & 0xFFF0;
+ sscanf(Cmd, "%c", &hex);
+ if (hex == 'h'){
+ PrintAndLog("Usage: data printdemodbuffer [x]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" x output in hex (omit for binary output)");
+ return 0;
+ }
+ if (hex == 'x'){
+ numBits = binarraytohex(printBuff, (char *)DemodBuffer, numBits);
+ if (numBits==0) return 0;
+ PrintAndLog("DemodBuffer: %s",printBuff);
+ } else {
+ printDemodBuff();
+ }
+ return 1;
+}
int CmdAmp(const char *Cmd)
{
int i, rising, falling;
* Updates the Graph trace with 0/1 values
*
* Arguments:
- * c : 0 or 1
+ * c : 0 or 1 (or invert)
*/
- //this method is dependant on all highs and lows to be the same(or clipped) this creates issues[marshmellow] it also ignores the clock
+ //this method ignores the clock
+
+ //this function strictly converts highs and lows to 1s and 0s for each sample in the graphbuffer
int Cmdaskdemod(const char *Cmd)
{
int i;
int c, high = 0, low = 0;
- // TODO: complain if we do not give 2 arguments here !
- // (AL - this doesn't make sense! we're only using one argument!!!)
sscanf(Cmd, "%i", &c);
- /* Detect high and lows and clock */
- // (AL - clock???)
+ /* Detect high and lows */
for (i = 0; i < GraphTraceLen; ++i)
{
if (GraphBuffer[i] > high)
* down)
*/
//[marhsmellow] change == to >= for high and <= for low for fuzz
- if ((GraphBuffer[i] == high) && (GraphBuffer[i - 1] == c)) {
+ if ((GraphBuffer[i] >= high) && (GraphBuffer[i - 1] == c)) {
GraphBuffer[i] = 1 - c;
- } else if ((GraphBuffer[i] == low) && (GraphBuffer[i - 1] == (1 - c))){
+ } else if ((GraphBuffer[i] <= low) && (GraphBuffer[i - 1] == (1 - c))){
GraphBuffer[i] = c;
} else {
/* No transition */
return 0;
}
+//this function strictly converts >1 to 1 and <1 to 0 for each sample in the graphbuffer
+int CmdGetBitStream(const char *Cmd)
+{
+ int i;
+ CmdHpf(Cmd);
+ for (i = 0; i < GraphTraceLen; i++) {
+ if (GraphBuffer[i] >= 1) {
+ GraphBuffer[i] = 1;
+ } else {
+ GraphBuffer[i] = 0;
+ }
+ }
+ RepaintGraphWindow();
+ return 0;
+}
+
+
//by marshmellow
void printBitStream(uint8_t BitStream[], uint32_t bitLen)
{
return;
}
//by marshmellow
-//print EM410x ID in multiple formats
+//print 64 bit EM410x ID in multiple formats
void printEM410x(uint64_t id)
{
if (id !=0){
printDemodBuff();
}
PrintAndLog("EM410x pattern found: ");
+ if (BitLen > 64) PrintAndLog("\nWarning! Length not what is expected - Length: %d bits\n",BitLen);
printEM410x(lo);
return 1;
}
return 0;
}
-//by marshmellow
-//takes 3 arguments - clock, invert, maxErr as integers
-//attempts to demodulate ask while decoding manchester
-//prints binary found and saves in graphbuffer for further commands
-int Cmdaskmandemod(const char *Cmd)
+int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch)
{
int invert=0;
int clk=0;
int maxErr=100;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
- PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
- 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;
- }
+
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
if (invert != 0 && invert != 1) {
if (g_debugMode==1) PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
return 0;
}
- PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
+ if (verbose) PrintAndLog("\nUsing Clock: %d - Invert: %d - Bits Found: %d",clk,invert,BitLen);
//output
if (errCnt>0){
- PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
+ if (verbose) PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
}
- PrintAndLog("ASK/Manchester decoded bitstream:");
+ if (verbose) PrintAndLog("ASK/Manchester decoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
setDemodBuf(BitStream,BitLen,0);
- printDemodBuff();
+ if (verbose) printDemodBuff();
uint64_t lo =0;
size_t idx=0;
- lo = Em410xDecode(BitStream, &BitLen, &idx);
- if (lo>0){
- //set GraphBuffer for clone or sim command
- setDemodBuf(BitStream, BitLen, idx);
- if (g_debugMode){
- PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
- printDemodBuff();
+ if (emSearch){
+ lo = Em410xDecode(BitStream, &BitLen, &idx);
+ if (lo>0){
+ //set GraphBuffer for clone or sim command
+ setDemodBuf(BitStream, BitLen, idx);
+ if (g_debugMode){
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+ printDemodBuff();
+ }
+ if (verbose) PrintAndLog("EM410x pattern found: ");
+ if (verbose) printEM410x(lo);
+ return 1;
}
- PrintAndLog("EM410x pattern found: ");
- printEM410x(lo);
- return 1;
}
return 1;
}
+//by marshmellow
+//takes 3 arguments - clock, invert, maxErr as integers
+//attempts to demodulate ask while decoding manchester
+//prints binary found and saves in graphbuffer for further commands
+int Cmdaskmandemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod am [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod am = demod an ask/manchester tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod am 32 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod am 32 1 = demod an ask/manchester tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod am 1 = demod an ask/manchester tag from GraphBuffer while inverting data");
+ 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 ASKmanDemod(Cmd, TRUE, TRUE);
+}
+
//by marshmellow
//manchester decode
//stricktly take 10 and 01 and convert to 0 and 1
PrintAndLog("Biphase Decoded using offset: %d - # errors:%d - data:",offset,errCnt);
printBitStream(BitStream, size);
PrintAndLog("\nif bitstream does not look right try offset=1");
+ if (offset == 1) setDemodBuf(DemodBuffer,DemodBufferLen-1,1); //remove first bit from raw demod
return 1;
}
+// set demod buffer back to raw after biphase demod
+void setBiphaseDemodBuf(uint8_t *BitStream, size_t size)
+{
+ uint8_t rawStream[512]={0x00};
+ size_t i=0;
+ uint8_t curPhase=0;
+ if (size > 256) {
+ PrintAndLog("ERROR - Biphase Demod Buffer overrun");
+ return;
+ }
+ for (size_t idx=0; idx<size; idx++){
+ if(!BitStream[idx]){
+ rawStream[i++] = curPhase;
+ rawStream[i++] = curPhase;
+ curPhase ^= 1;
+ } else {
+ rawStream[i++] = curPhase;
+ rawStream[i++] = curPhase ^ 1;
+ }
+ }
+ setDemodBuf(rawStream,i,0);
+ return;
+}
//by marshmellow
//takes 4 arguments - clock, invert, maxErr as integers and amplify as char
//attempts to demodulate ask only
//prints binary found and saves in graphbuffer for further commands
-int Cmdaskrawdemod(const char *Cmd)
+int ASKrawDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
int maxErr=100;
uint8_t askAmp = 0;
char amp = param_getchar(Cmd, 0);
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
- PrintAndLog(" <invert>, 1 to invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100");
- PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
- PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
- PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
- 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");
- PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
- return 0;
- }
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
sscanf(Cmd, "%i %i %i %c", &clk, &invert, &maxErr, &);
if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
+ if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
return 0;
}
if (clk==1){
int errCnt=0;
errCnt = askrawdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp);
if (errCnt==-1||BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
- PrintAndLog("no data found");
- if (g_debugMode==1) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
+ if (verbose) PrintAndLog("no data found");
+ if (g_debugMode==1 && verbose) PrintAndLog("errCnt: %d, BitLen: %d, clk: %d, invert: %d", errCnt, BitLen, clk, invert);
return 0;
}
- PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
+ if (verbose) PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d", clk, invert, BitLen);
//move BitStream back to DemodBuffer
setDemodBuf(BitStream,BitLen,0);
//output
- if (errCnt>0){
+ if (errCnt>0 && verbose){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d", errCnt);
}
- PrintAndLog("ASK demoded bitstream:");
- // Now output the bitstream to the scrollback by line of 16 bits
- printBitStream(BitStream,BitLen);
+ if (verbose){
+ PrintAndLog("ASK demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printBitStream(BitStream,BitLen);
+ }
+ return 1;
+}
+//by marshmellow
+//attempts to demodulate and identify a G_Prox_II verex/chubb card
+//WARNING: if it fails during some points it will destroy the DemodBuffer data
+// but will leave the GraphBuffer intact.
+//if successful it will push askraw data back to demod buffer ready for emulation
+int CmdG_Prox_II_Demod(const char *Cmd)
+{
+ int ans = ASKrawDemod(Cmd, FALSE);
+ if (ans <= 0) {
+ if (g_debugMode) PrintAndLog("Error AskrawDemod: %d",ans);
+ return ans;
+ }
+ size_t size = DemodBufferLen;
+ ans = BiphaseRawDecode(DemodBuffer, &size, 0, 0);
+ if (ans !=0) {
+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+ return ans;
+ }
+ //call lfdemod.c demod for gProxII
+ ans = gProxII_Demod(DemodBuffer, &size);
+ if (ans < 0){
+ if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+ //try biphase again
+ ans = BiphaseRawDecode(DemodBuffer, &size, 1, 0);
+ if (ans != 0) {
+ if (g_debugMode) PrintAndLog("Error BiphaseRawDecode: %d",ans);
+ return ans;
+ }
+ ans = gProxII_Demod(DemodBuffer, &size);
+ if (ans < 0) {
+ if (g_debugMode) PrintAndLog("Error gProxII_Demod 1st Try: %d",ans);
+ return ans;
+ }
+ }
+ //got a good demod
+ uint32_t ByteStream[65] = {0x00};
+ uint8_t xorKey=0;
+ uint8_t keyCnt=0;
+ uint8_t bitCnt=0;
+ uint8_t ByteCnt=0;
+ size_t startIdx = ans + 6; //start after preamble
+ for (size_t idx = 0; idx<size-6; idx++){
+ 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);
+ return -1;
+ }
+ continue;
+ }
+ if (keyCnt<8){ //lsb first
+ xorKey = xorKey | (DemodBuffer[startIdx+idx]<<keyCnt);
+ keyCnt++;
+ if (keyCnt==8 && g_debugMode) PrintAndLog("xorKey Found: %02x", 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]);
+ 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]);
+ }
+ //now ByteStream contains 64 bytes of decrypted raw tag data
+ //
+ uint8_t fmtLen = ByteStream[0]>>2;
+ uint32_t FC = 0;
+ uint32_t Card = 0;
+ uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
+ uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
+ uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
+
+ 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);
+ } 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);
+ } else {
+ PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",fmtLen);
+ }
+ PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
+ setBiphaseDemodBuf(DemodBuffer+ans, 96);
return 1;
}
+//by marshmellow - see ASKrawDemod
+int Cmdaskrawdemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 12 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod ar [clock] <invert> [maxError] [amplify]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect");
+ PrintAndLog(" <invert>, 1 to invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100");
+ PrintAndLog(" <amplify>, 'a' to attempt demod with ask amplification, default = no amp");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod ar = demod an ask tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod ar a = demod an ask tag from GraphBuffer, amplified");
+ PrintAndLog(" : data rawdemod ar 32 = demod an ask tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod ar 32 1 = demod an ask tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod ar 1 = demod an ask tag from GraphBuffer while inverting data");
+ 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");
+ PrintAndLog(" : data rawdemod ar 64 1 0 a = demod an ask tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors, and amp");
+ return 0;
+ }
+ return ASKrawDemod(Cmd, TRUE);
+}
+
int CmdAutoCorr(const char *Cmd)
{
static int CorrelBuffer[MAX_GRAPH_TRACE_LEN];
//fsk raw demod and print binary
//takes 4 arguments - Clock, invert, fchigh, fclow
//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
-int CmdFSKrawdemod(const char *Cmd)
+int FSKrawDemod(const char *Cmd, bool verbose)
{
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
//set defaults
int rfLen = 0;
- int invert=0;
- int fchigh=0;
- int fclow=0;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
- PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
- PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
- PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
- PrintAndLog(" [fclow], small field clock length, omit for autodetect");
- PrintAndLog("");
- PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
- PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
- PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
- PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
- PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
- PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
- return 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);
uint16_t fcs=0;
uint8_t dummy=0;
if (fchigh==0 || fclow == 0){
- fcs=countFC(BitStream, BitLen, &dummy);
+ fcs = countFC(BitStream, BitLen, &dummy);
if (fcs==0){
fchigh=10;
fclow=8;
rfLen = detectFSKClk(BitStream, BitLen, fchigh, fclow);
if (rfLen == 0) rfLen = 50;
}
- PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
+ if (verbose) PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow);
int size = fskdemod(BitStream,BitLen,(uint8_t)rfLen,(uint8_t)invert,(uint8_t)fchigh,(uint8_t)fclow);
if (size>0){
- PrintAndLog("FSK decoded bitstream:");
setDemodBuf(BitStream,size,0);
// Now output the bitstream to the scrollback by line of 16 bits
if(size > (8*32)+2) size = (8*32)+2; //only output a max of 8 blocks of 32 bits most tags will have full bit stream inside that sample size
- printBitStream(BitStream,size);
+ if (verbose) {
+ PrintAndLog("FSK decoded bitstream:");
+ printBitStream(BitStream,size);
+ }
+
return 1;
} else{
- PrintAndLog("no FSK data found");
+ if (verbose) PrintAndLog("no FSK data found");
}
return 0;
}
+//by marshmellow
+//fsk raw demod and print binary
+//takes 4 arguments - Clock, invert, fchigh, fclow
+//defaults: clock = 50, invert=1, fchigh=10, fclow=8 (RF/10 RF/8 (fsk2a))
+int CmdFSKrawdemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod fs [clock] <invert> [fchigh] [fclow]");
+ PrintAndLog(" [set clock as integer] optional, omit for autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output, can be used even if the clock is omitted");
+ PrintAndLog(" [fchigh], larger field clock length, omit for autodetect");
+ PrintAndLog(" [fclow], small field clock length, omit for autodetect");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod fs = demod an fsk tag from GraphBuffer using autodetect");
+ PrintAndLog(" : data rawdemod fs 32 = demod an fsk tag from GraphBuffer using a clock of RF/32, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 1 = demod an fsk tag from GraphBuffer using autodetect, invert output");
+ PrintAndLog(" : data rawdemod fs 32 1 = demod an fsk tag from GraphBuffer using a clock of RF/32, invert output, autodetect fc");
+ PrintAndLog(" : data rawdemod fs 64 0 8 5 = demod an fsk1 RF/64 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 0 10 8 = demod an fsk2 RF/50 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod fs 50 1 10 8 = demod an fsk2a RF/50 tag from GraphBuffer");
+ return 0;
+ }
+ return FSKrawDemod(Cmd, TRUE);
+}
+
//by marshmellow (based on existing demod + holiman's refactor)
//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
//print full HID Prox ID and some bit format details if found
}
uint32_t fc = ((hi & 0x3)<<6) | (lo>>26);
uint32_t cardnum = (lo>>10)&0xFFFF;
-
- PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x",
- hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF );
+ uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);
+ uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);
+ uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);
+
+ PrintAndLog("Paradox TAG ID: %x%08x - FC: %d - Card: %d - Checksum: %02x - RAW: %08x%08x%08x",
+ hi>>10, (hi & 0x3)<<26 | (lo>>10), fc, cardnum, (lo>>2) & 0xFF, rawHi2, rawHi, rawLo);
setDemodBuf(BitStream,BitLen,idx);
if (g_debugMode){
PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen);
fc = bytebits_to_byte(BitStream+9, 8);
cardnum = bytebits_to_byte(BitStream+17, 16);
code1 = bytebits_to_byte(BitStream+8,fmtLen);
- PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
+ PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);
if (fmtLen>32){
code1 = bytebits_to_byte(BitStream+8,fmtLen-32);
code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);
} else{
code1 = bytebits_to_byte(BitStream+8,fmtLen);
- PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);
}
}
if (g_debugMode){
fc = bytebits_to_byte(BitStream+73, 8);
cardnum = bytebits_to_byte(BitStream+81, 16);
code1 = bytebits_to_byte(BitStream+72,fmtLen);
- PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi3, rawHi2, rawHi, rawLo);
} else if (fmtLen==45){
fmtLen=42; //end = 10 bits not 7 like 26 bit fmt
fc = bytebits_to_byte(BitStream+53, 10);
cardnum = bytebits_to_byte(BitStream+63, 32);
- PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen, fc, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else {
cardnum = bytebits_to_byte(BitStream+81, 16);
if (fmtLen>32){
//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
//code2 = bytebits_to_byte(BitStream+(size-32),32);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
} else{
//code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
- PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
+ PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen, cardnum, rawHi3, rawHi2, rawHi, rawLo);
}
}
if (g_debugMode){
//by marshmellow
//attempt to psk1 demod graph buffer
-int PSKDemod(const char *Cmd, uint8_t verbose)
+int PSKDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
clk=0;
}
if (invert != 0 && invert != 1) {
- PrintAndLog("Invalid argument: %s", Cmd);
+ if (verbose) PrintAndLog("Invalid argument: %s", Cmd);
return -1;
}
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t BitLen = getFromGraphBuf(BitStream);
- if (BitLen==0) return 0;
+ if (BitLen==0) return -1;
+ uint8_t carrier=countPSK_FC(BitStream, BitLen);
+ if (carrier!=2 && carrier!=4 && carrier!=8){
+ //invalid carrier
+ return -1;
+ }
int errCnt=0;
- errCnt = pskRawDemod(BitStream, &BitLen,&clk,&invert);
+ errCnt = pskRawDemod(BitStream, &BitLen, &clk, &invert);
if (errCnt > maxErr){
- if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return -1;
}
if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
- if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return -1;
}
if (verbose) PrintAndLog("Tried PSK Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
// takes 3 arguments - clock, invert, maxErr as integers
// attempts to demodulate nrz only
// prints binary found and saves in demodbuffer for further commands
-int CmdNRZrawDemod(const char *Cmd)
+
+int NRZrawDemod(const char *Cmd, bool verbose)
{
int invert=0;
int clk=0;
int maxErr=100;
- char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
- PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
- PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
- PrintAndLog(" <invert>, 1 for invert output");
- PrintAndLog(" [set maximum allowed errors], default = 100.");
- PrintAndLog("");
- PrintAndLog(" sample: data nrzrawdemod = demod a nrz/direct tag from GraphBuffer");
- PrintAndLog(" : data nrzrawdemod 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data nrzrawdemod 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data nrzrawdemod 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
- PrintAndLog(" : data nrzrawdemod 64 1 0 = demod a nrz/direct tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
-
- return 0;
- }
-
sscanf(Cmd, "%i %i %i", &clk, &invert, &maxErr);
if (clk==1){
invert=1;
int errCnt=0;
errCnt = nrzRawDemod(BitStream, &BitLen, &clk, &invert, maxErr);
if (errCnt > maxErr){
- if (g_debugMode==1) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("Too many errors found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
}
if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first)
- if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
+ if (g_debugMode==1 && verbose) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt);
return 0;
}
PrintAndLog("Tried NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen);
//prime demod buffer for output
setDemodBuf(BitStream,BitLen,0);
- if (errCnt>0){
+ if (errCnt>0 && verbose){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }else{
}
- PrintAndLog("NRZ demoded bitstream:");
- // Now output the bitstream to the scrollback by line of 16 bits
- printDemodBuff();
- return 1;
+ if (verbose) {
+ PrintAndLog("NRZ demoded bitstream:");
+ // Now output the bitstream to the scrollback by line of 16 bits
+ printDemodBuff();
+ }
+ return 1;
+}
+
+int CmdNRZrawDemod(const char *Cmd)
+{
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') {
+ PrintAndLog("Usage: data rawdemod nr [clock] <0|1> [maxError]");
+ PrintAndLog(" [set clock as integer] optional, if not set, autodetect.");
+ PrintAndLog(" <invert>, 1 for invert output");
+ PrintAndLog(" [set maximum allowed errors], default = 100.");
+ PrintAndLog("");
+ PrintAndLog(" sample: data rawdemod nr = demod a nrz/direct tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod nr 32 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod nr 32 1 = demod a nrz/direct tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod nr 1 = demod a nrz/direct tag from GraphBuffer while inverting data");
+ 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");
+ return 0;
+ }
+ return NRZrawDemod(Cmd, TRUE);
}
// by marshmellow
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" [set maximum allowed errors], default = 100.");
PrintAndLog("");
- PrintAndLog(" sample: data psk1rawdemod = demod a psk1 tag from GraphBuffer");
- PrintAndLog(" : data psk1rawdemod 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data psk1rawdemod 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
- PrintAndLog(" : data psk1rawdemod 1 = demod a psk1 tag from GraphBuffer while inverting data");
- PrintAndLog(" : data psk1rawdemod 64 1 0 = demod a psk1 tag from GraphBuffer using a clock of RF/64, inverting data and allowing 0 demod errors");
+ PrintAndLog(" sample: data rawdemod p1 = demod a psk1 tag from GraphBuffer");
+ PrintAndLog(" : data rawdemod p1 32 = demod a psk1 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p1 32 1 = demod a psk1 tag from GraphBuffer using a clock of RF/32 and inverting data");
+ PrintAndLog(" : data rawdemod p1 1 = demod a psk1 tag from GraphBuffer while inverting data");
+ 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");
return 0;
}
- errCnt = PSKDemod(Cmd, 1);
+ errCnt = PSKDemod(Cmd, TRUE);
//output
if (errCnt<0){
if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
}
if (errCnt>0){
PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt);
- }else{
}
PrintAndLog("PSK demoded bitstream:");
// Now output the bitstream to the scrollback by line of 16 bits
PrintAndLog(" <invert>, 1 for invert output");
PrintAndLog(" [set maximum allowed errors], default = 100.");
PrintAndLog("");
- PrintAndLog(" sample: data psk2rawdemod = demod a psk2 tag from GraphBuffer, autodetect clock");
- PrintAndLog(" : data psk2rawdemod 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
- PrintAndLog(" : data psk2rawdemod 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
- PrintAndLog(" : data psk2rawdemod 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
- PrintAndLog(" : data psk2rawdemod 64 1 0 = demod a psk2 tag from GraphBuffer using a clock of RF/64, inverting output and allowing 0 demod errors");
+ PrintAndLog(" sample: data rawdemod p2 = demod a psk2 tag from GraphBuffer, autodetect clock");
+ PrintAndLog(" : data rawdemod p2 32 = demod a psk2 tag from GraphBuffer using a clock of RF/32");
+ PrintAndLog(" : data rawdemod p2 32 1 = demod a psk2 tag from GraphBuffer using a clock of RF/32 and inverting output");
+ PrintAndLog(" : data rawdemod p2 1 = demod a psk2 tag from GraphBuffer, autodetect clock and invert output");
+ 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");
return 0;
}
- errCnt=PSKDemod(Cmd, 1);
+ errCnt=PSKDemod(Cmd, TRUE);
if (errCnt<0){
if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt);
return 0;
return 0;
}
+//zero mean GraphBuffer
int CmdHpf(const char *Cmd)
{
int i;
//{"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"},
{"askedgedetect", CmdAskEdgeDetect, 1, "[threshold] Adjust Graph for manual ask demod using length of sample differences to detect the edge of a wave (default = 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"},
//{"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional)"},
//{"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output bin (args optional)"},
{"autocorr", CmdAutoCorr, 1, "<window length> -- Autocorrelation over window"},
{"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate a Pyramid FSK tag from GraphBuffer"},
{"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate a Paradox FSK tag from GraphBuffer"},
//{"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"},
+ {"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"},
{"hide", CmdHide, 1, "Hide graph window"},
//{"nrzrawdemod", CmdNRZrawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate nrz tags and output binary (args optional)"},
{"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"},
//{"pskdetectclock",CmdDetectPSKClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"},
+ {"printdemodbuffer",CmdPrintDemodBuff,1, "[x] -- 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)"},
//{"psk1rawdemod", CmdPSK1rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk1 tags and output binary (args optional)"},
//{"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] [maxErr] -- Attempt to demodulate psk2 tags and output binary (args optional)"},
command_t * CmdDataCommands();
int CmdData(const char *Cmd);
-void printDemodBuff();
+void printDemodBuff(void);
+void printBitStream(uint8_t BitStream[], uint32_t bitLen);
+void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx);
int CmdAmp(const char *Cmd);
int Cmdaskdemod(const char *Cmd);
int CmdAskEM410xDemod(const char *Cmd);
+int CmdG_Prox_II_Demod(const char *Cmd);
int Cmdaskrawdemod(const char *Cmd);
int Cmdaskmandemod(const char *Cmd);
int CmdAutoCorr(const char *Cmd);
int CmdPSK1rawDemod(const char *Cmd);
int CmdPSK2rawDemod(const char *Cmd);
int CmdGrid(const char *Cmd);
+int CmdGetBitStream(const char *Cmd);
int CmdHexsamples(const char *Cmd);
int CmdHide(const char *Cmd);
int CmdHpf(const char *Cmd);
int CmdDirectionalThreshold(const char *Cmd);
int CmdZerocrossings(const char *Cmd);
int CmdIndalaDecode(const char *Cmd);
+int ASKmanDemod(const char *Cmd, bool verbose, bool emSearch);
+int ASKrawDemod(const char *Cmd, bool verbose);
+int FSKrawDemod(const char *Cmd, bool verbose);
+int PSKDemod(const char *Cmd, bool verbose);
+int NRZrawDemod(const char *Cmd, bool verbose);
#define MAX_DEMOD_BUF_LEN (1024*128)
extern uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
#include "cmdlft55xx.h"
#include "cmdlfpcf7931.h"
#include "cmdlfio.h"
+#include "lfdemod.h"
static int CmdHelp(const char *Cmd);
static void ChkBitstream(const char *str)
{
int i;
-
+
/* convert to bitstream if necessary */
for (i = 0; i < (int)(GraphTraceLen / 2); i++){
if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) {
- CmdBitstream(str);
+ CmdGetBitStream("");
break;
}
}
//appears to attempt to simulate manchester
int CmdLFSim(const char *Cmd)
{
- int i,j;
+ int i,j;
static int gap;
sscanf(Cmd, "%i", &gap);
/* convert to bitstream if necessary */
+
ChkBitstream(Cmd);
- printf("Sending [%d bytes]", GraphTraceLen);
- for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
+ //can send 512 bits at a time (1 byte sent per bit...)
+ printf("Sending [%d bytes]", GraphTraceLen);
+ for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
- for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
+ for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
c.d.asBytes[j] = GraphBuffer[i+j];
}
SendCommand(&c);
WaitForResponse(CMD_ACK,NULL);
- printf(".");
+ printf(".");
}
- printf("\n");
- PrintAndLog("Starting to simulate");
+ printf("\n");
+ PrintAndLog("Starting to simulate");
UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
SendCommand(&c);
return 0;
}
+int usage_lf_simfsk(void)
+{
+ //print help
+ PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
+ PrintAndLog(" i invert data");
+ PrintAndLog(" H <fcHigh> Manually set the larger Field Clock");
+ PrintAndLog(" L <fcLow> Manually set the smaller Field Clock");
+ //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap");
+ PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
+ PrintAndLog("\n NOTE: if you set one clock manually set them all manually");
+ return 0;
+}
+
+int usage_lf_simask(void)
+{
+ //print help
+ PrintAndLog("Usage: lf simask [c <clock>] [i] [m|r] [s] [d <raw hex to sim>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
+ PrintAndLog(" i invert data");
+ PrintAndLog(" m sim ask/manchester");
+ PrintAndLog(" r sim ask/raw");
+ PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap");
+ PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
+ return 0;
+}
+
+int usage_lf_simpsk(void)
+{
+ //print help
+ PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]");
+ PrintAndLog("Options: ");
+ PrintAndLog(" h This help");
+ PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer");
+ PrintAndLog(" i invert data");
+ PrintAndLog(" 1 set PSK1 (default)");
+ PrintAndLog(" 2 set PSK2");
+ PrintAndLog(" 3 set PSK3");
+ PrintAndLog(" r <carrier> 2|4|8 are valid carriers: default = 2");
+ PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer");
+ return 0;
+}
+
+// by marshmellow - sim ask data given clock, fcHigh, fcLow, invert
+// - allow pull data from DemodBuffer
+int CmdLFfskSim(const char *Cmd)
+{
+ //might be able to autodetect FC and clock from Graphbuffer if using demod buffer
+ //will need FChigh, FClow, Clock, and bitstream
+ uint8_t fcHigh=0, fcLow=0, clk=0;
+ uint8_t invert=0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00}; // store entered hex data
+ uint8_t data[255] = {0x00};
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_simfsk();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd,cmdp+1,&clk);
+ cmdp+=2;
+ break;
+ case 'H':
+ errors |= param_getdec(Cmd,cmdp+1,&fcHigh);
+ cmdp+=2;
+ break;
+ case 'L':
+ errors |= param_getdec(Cmd,cmdp+1,&fcLow);
+ cmdp+=2;
+ break;
+ //case 's':
+ // separator=1;
+ // cmdp++;
+ // break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen==0) {
+ errors=TRUE;
+ } else {
+ dataLen = hextobinarray((char *)data, hexData);
+ }
+ if (dataLen==0) errors=TRUE;
+ if (errors) PrintAndLog ("Error getting hex data");
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
+ if(cmdp == 0 && DemodBufferLen == 0)
+ {
+ errors = TRUE;// No args
+ }
+
+ //Validations
+ if(errors)
+ {
+ return usage_lf_simfsk();
+ }
+
+ if (dataLen == 0){ //using DemodBuffer
+ if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all
+ uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
+ if (ans==0){
+ if (!fcHigh) fcHigh=10;
+ if (!fcLow) fcLow=8;
+ if (!clk) clk=50;
+ }
+ }
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
+ if (clk == 0) clk = 50;
+ if (fcHigh == 0) fcHigh = 10;
+ if (fcLow == 0) fcLow = 8;
+
+ uint16_t arg1, arg2;
+ arg1 = fcHigh << 8 | fcLow;
+ arg2 = invert << 8 | clk;
+ size_t size = DemodBufferLen;
+ if (size > USB_CMD_DATA_SIZE) {
+ PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+ size = USB_CMD_DATA_SIZE;
+ }
+ UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
+
+ memcpy(c.d.asBytes, DemodBuffer, size);
+ SendCommand(&c);
+ return 0;
+}
+
+// by marshmellow - sim ask data given clock, invert, manchester or raw, separator
+// - allow pull data from DemodBuffer
+int CmdLFaskSim(const char *Cmd)
+{
+ //autodetect clock from Graphbuffer if using demod buffer
+ //will need clock, invert, manchester/raw as m or r, separator as s, and bitstream
+ uint8_t manchester = 1, separator = 0;
+ //char cmdp = Cmd[0], par3='m', par4=0;
+ uint8_t clk=0, invert=0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00};
+ uint8_t data[255]= {0x00}; // store entered hex data
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_simask();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd,cmdp+1,&clk);
+ cmdp+=2;
+ break;
+ case 'm':
+ manchester=1;
+ cmdp++;
+ break;
+ case 'r':
+ manchester=0;
+ cmdp++;
+ break;
+ case 's':
+ separator=1;
+ cmdp++;
+ break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen==0) {
+ errors=TRUE;
+ } else {
+ dataLen = hextobinarray((char *)data, hexData);
+ }
+ if (dataLen==0) errors=TRUE;
+ if (errors) PrintAndLog ("Error getting hex data, datalen: %d",dataLen);
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if(errors) break;
+ }
+ if(cmdp == 0 && DemodBufferLen == 0)
+ {
+ errors = TRUE;// No args
+ }
+
+ //Validations
+ if(errors)
+ {
+ return usage_lf_simask();
+ }
+ if (dataLen == 0){ //using DemodBuffer
+ if (clk == 0) clk = GetAskClock("0", false, false);
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
+ if (clk == 0) clk = 64;
+ if (manchester == 0) clk = clk/2; //askraw needs to double the clock speed
+ uint16_t arg1, arg2;
+ size_t size=DemodBufferLen;
+ arg1 = clk << 8 | manchester;
+ arg2 = invert << 8 | separator;
+ if (size > USB_CMD_DATA_SIZE) {
+ PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+ size = USB_CMD_DATA_SIZE;
+ }
+ UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
+ PrintAndLog("preparing to sim ask data: %d bits", size);
+ memcpy(c.d.asBytes, DemodBuffer, size);
+ SendCommand(&c);
+ return 0;
+}
+
+// by marshmellow - sim psk data given carrier, clock, invert
+// - allow pull data from DemodBuffer or parameters
+int CmdLFpskSim(const char *Cmd)
+{
+ //might be able to autodetect FC and clock from Graphbuffer if using demod buffer
+ //will need carrier, Clock, and bitstream
+ uint8_t carrier=0, clk=0;
+ uint8_t invert=0;
+ bool errors = FALSE;
+ char hexData[32] = {0x00}; // store entered hex data
+ uint8_t data[255] = {0x00};
+ int dataLen = 0;
+ uint8_t cmdp = 0;
+ uint8_t pskType = 1;
+ while(param_getchar(Cmd, cmdp) != 0x00)
+ {
+ switch(param_getchar(Cmd, cmdp))
+ {
+ case 'h':
+ return usage_lf_simpsk();
+ case 'i':
+ invert = 1;
+ cmdp++;
+ break;
+ case 'c':
+ errors |= param_getdec(Cmd,cmdp+1,&clk);
+ cmdp+=2;
+ break;
+ case 'r':
+ errors |= param_getdec(Cmd,cmdp+1,&carrier);
+ cmdp+=2;
+ break;
+ case '1':
+ pskType=1;
+ cmdp++;
+ break;
+ case '2':
+ pskType=2;
+ cmdp++;
+ break;
+ case '3':
+ pskType=3;
+ cmdp++;
+ break;
+ case 'd':
+ dataLen = param_getstr(Cmd, cmdp+1, hexData);
+ if (dataLen==0) {
+ errors=TRUE;
+ } else {
+ dataLen = hextobinarray((char *)data, hexData);
+ }
+ if (dataLen==0) errors=TRUE;
+ if (errors) PrintAndLog ("Error getting hex data");
+ cmdp+=2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = TRUE;
+ break;
+ }
+ if (errors) break;
+ }
+ if (cmdp == 0 && DemodBufferLen == 0)
+ {
+ errors = TRUE;// No args
+ }
+
+ //Validations
+ if (errors)
+ {
+ return usage_lf_simpsk();
+ }
+ if (dataLen == 0){ //using DemodBuffer
+ PrintAndLog("Getting Clocks");
+ if (clk==0) clk = GetPskClock("", FALSE, FALSE);
+ PrintAndLog("clk: %d",clk);
+ if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE);
+ PrintAndLog("carrier: %d", carrier);
+ } else {
+ setDemodBuf(data, dataLen, 0);
+ }
+
+ if (clk <= 0) clk = 32;
+ if (carrier == 0) carrier = 2;
+ if (pskType != 1){
+ if (pskType == 2){
+ //need to convert psk2 to psk1 data before sim
+ psk2TOpsk1(DemodBuffer, DemodBufferLen);
+ } else {
+ PrintAndLog("Sorry, PSK3 not yet available");
+ }
+ }
+ uint16_t arg1, arg2;
+ arg1 = clk << 8 | carrier;
+ arg2 = invert;
+ size_t size=DemodBufferLen;
+ if (size > USB_CMD_DATA_SIZE) {
+ PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE);
+ size=USB_CMD_DATA_SIZE;
+ }
+ UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}};
+ PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size);
+ memcpy(c.d.asBytes, DemodBuffer, size);
+ SendCommand(&c);
+
+ return 0;
+}
+
int CmdLFSimBidir(const char *Cmd)
{
// Set ADC to twice the carrier for a slight supersampling
}
/* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */
+/*
int CmdLFSimManchester(const char *Cmd)
{
static int clock, gap;
CmdLFSim(gapstring);
return 0;
}
-
+*/
int CmdVchDemod(const char *Cmd)
{
PrintAndLog("\nValid EM410x ID Found!");
return 1;
}
+ ans=CmdG_Prox_II_Demod("");
+ if (ans>0) {
+ PrintAndLog("\nValid G Prox II ID Found!");
+ return 1;
+ }
PrintAndLog("\nNo Known Tags Found!\n");
if (testRaw=='u' || testRaw=='U'){
//test unknown tag formats (raw mode)
{"read", CmdLFRead, 0, "Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"},
{"search", CmdLFfind, 1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) - 'u' to search for unknown tags"},
{"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"},
+ {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [manchester/raw <'m'|'r'>] [msg separator 's'] [d <hexdata>] -- Simulate LF ASK tag from demodbuffer or input"},
+ {"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] -- Simulate LF FSK tag from demodbuffer or input"},
+ {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] -- Simulate LF PSK tag from demodbuffer or input"},
{"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"},
- {"simman", CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
+ //{"simman", CmdLFSimManchester, 0, "<Clock> <Bitstream> [GAP] Simulate arbitrary Manchester LF tag"},
{"snoop", CmdLFSnoop, 0, "['l'|'h'|<divisor>] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"},
{"ti", CmdLFTI, 1, "{ TI RFIDs... }"},
{"hitag", CmdLFHitag, 1, "{ Hitag tags and transponders... }"},
int CmdIndalaClone(const char *Cmd);
int CmdLFRead(const char *Cmd);
int CmdLFSim(const char *Cmd);
+int CmdLFaskSim(const char *Cmd);
+int CmdLFfskSim(const char *Cmd);
+int CmdLFpskSim(const char *Cmd);
int CmdLFSimBidir(const char *Cmd);
-int CmdLFSimManchester(const char *Cmd);
+//int CmdLFSimManchester(const char *Cmd);
int CmdLFSnoop(const char *Cmd);
int CmdVchDemod(const char *Cmd);
int CmdLFfind(const char *Cmd);
/* stop bit */
AppendGraph(1, clock, 0);
- CmdLFSim("240"); //240 start_gap.
+ CmdLFSim("0"); //240 start_gap.
return 0;
}
int GraphBuffer[MAX_GRAPH_TRACE_LEN];
int GraphTraceLen;
-/* write a bit to the graph */
+/* write a manchester bit to the graph */
void AppendGraph(int redraw, int clock, int bit)
{
int i;
-
+ //set first half the clock bit (all 1's or 0's for a 0 or 1 bit)
for (i = 0; i < (int)(clock / 2); ++i)
- GraphBuffer[GraphTraceLen++] = bit ^ 1;
-
+ GraphBuffer[GraphTraceLen++] = bit ;
+ //set second half of the clock bit (all 0's or 1's for a 0 or 1 bit)
for (i = (int)(clock / 2); i < clock; ++i)
- GraphBuffer[GraphTraceLen++] = bit;
+ GraphBuffer[GraphTraceLen++] = bit ^ 1;
if (redraw)
RepaintGraphWindow();
return clock;
}
+uint8_t GetPskCarrier(const char str[], bool printAns, bool verbose)
+{
+ uint8_t carrier=0;
+ uint8_t grph[MAX_GRAPH_TRACE_LEN]={0};
+ size_t size = getFromGraphBuf(grph);
+ if ( size == 0 ) {
+ if (verbose)
+ PrintAndLog("Failed to copy from graphbuffer");
+ return 0;
+ }
+ //uint8_t countPSK_FC(uint8_t *BitStream, size_t size)
+
+ carrier = countPSK_FC(grph,size);
+ // Only print this message if we're not looping something
+ if (printAns){
+ PrintAndLog("Auto-detected PSK carrier rate: %d", carrier);
+ }
+ return carrier;
+}
+
int GetPskClock(const char str[], bool printAns, bool verbose)
{
int clock;
clock = 0;
if (clock != 0) return (uint8_t)clock;
+
+ uint8_t fc1=0, fc2=0, rf1=0;
+ uint8_t ans = fskClocks(&fc1, &fc2, &rf1, verbose);
+ if (ans == 0) return 0;
+ if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){
+ if (printAns) PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
+ return rf1;
+ }
+ if (verbose){
+ PrintAndLog("DEBUG: unknown fsk field clock detected");
+ PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
+ }
+ return 0;
+}
+uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose)
+{
uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
size_t size = getFromGraphBuf(BitStream);
if (size==0) return 0;
if (verbose) PrintAndLog("DEBUG: No data found");
return 0;
}
- uint8_t fc1, fc2;
- fc1 = (ans >> 8) & 0xFF;
- fc2 = ans & 0xFF;
+ *fc1 = (ans >> 8) & 0xFF;
+ *fc2 = ans & 0xFF;
- uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2);
- if (rf1==0) {
+ *rf1 = detectFSKClk(BitStream, size, *fc1, *fc2);
+ if (*rf1==0) {
if (verbose) PrintAndLog("DEBUG: Clock detect error");
return 0;
}
- if ((fc1==10 && fc2==8) || (fc1==8 && fc2==5)){
- if (printAns) PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
- return rf1;
- }
- if (verbose){
- PrintAndLog("DEBUG: unknown fsk field clock detected");
- PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1);
- }
- return 0;
+ return 1;
}
size_t getFromGraphBuf(uint8_t *buff);
int GetAskClock(const char str[], bool printAns, bool verbose);
int GetPskClock(const char str[], bool printAns, bool verbose);
+uint8_t GetPskCarrier(const char str[], bool printAns, bool verbose);
uint8_t GetNrzClock(const char str[], bool printAns, bool verbose);
uint8_t GetFskClock(const char str[], bool printAns, bool verbose);
+uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose);
void setGraphBuf(uint8_t *buff, size_t size);
bool HasGraphData();
#define CMD_INDALA_CLONE_TAG 0x0212
// for 224 bits UID
#define CMD_INDALA_CLONE_TAG_L 0x0213
+#define CMD_T55XX_READ_BLOCK 0x0214
+#define CMD_T55XX_WRITE_BLOCK 0x0215
+#define CMD_T55XX_READ_TRACE 0x0216
+#define CMD_PCF7931_READ 0x0217
+#define CMD_EM4X_READ_WORD 0x0218
+#define CMD_EM4X_WRITE_WORD 0x0219
+#define CMD_IO_DEMOD_FSK 0x021A
+#define CMD_IO_CLONE_TAG 0x021B
+#define CMD_EM410X_DEMOD 0x021c
+#define CMD_SET_LF_SAMPLING_CONFIG 0x021d
+#define CMD_FSK_SIM_TAG 0x021E
+#define CMD_ASK_SIM_TAG 0x021F
+#define CMD_PSK_SIM_TAG 0x0220
/* CMD_SET_ADC_MUX: ext1 is 0 for lopkd, 1 for loraw, 2 for hipkd, 3 for hiraw */
CMD_EM4X_READ_WORD = 0x0218,
CMD_EM4X_WRITE_WORD = 0x0219,
CMD_IO_DEMOD_FSK = 0x021A,
- CMD_IO_CLONE_TAG = 0x021B,
- CMD_EM410X_DEMOD = 0x021c,
+ CMD_IO_CLONE_TAG = 0x021B,
+ CMD_EM410X_DEMOD = 0x021c,
+ CMD_SET_LF_SAMPLING_CONFIG = 0x021d,
+ CMD_FSK_SIM_TAG = 0x021E,
+ CMD_ASK_SIM_TAG = 0x021F,
+ CMD_PSK_SIM_TAG = 0x0220,
+
--/* CMD_SET_ADC_MUX: ext1 is 0 for lopkd, 1 for loraw, 2 for hipkd, 3 for hiraw */
--// For the 13.56 MHz tags
return bin.pack("LLLLH",cmd, arg1, arg2, arg3,data);
end
-return _commands
\ No newline at end of file
+return _commands
}
//by marshmellow
-//get high and low with passed in fuzz factor. also return noise test = 1 for passed or 0 for only noise
+//get high and low values of a wave with passed in fuzz factor. also return noise test = 1 for passed or 0 for only noise
int getHiLo(uint8_t *BitStream, size_t size, int *high, int *low, uint8_t fuzzHi, uint8_t fuzzLo)
{
*high=0;
errChk = 0;
break;
}
+ //set uint64 with ID from BitStream
for (uint8_t ii=0; ii<4; ii++){
lo = (lo << 1LL) | (BitStream[(i*5)+ii+idx]);
}
//by marshmellow
//takes 3 arguments - clock, invert and maxErr as integers
//attempts to demodulate ask only
-//prints binary found and saves in graphbuffer for further commands
int askrawdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp)
{
uint32_t i;
}
return bestErrCnt;
}
+
+// demod gProxIIDemod
+// error returns as -x
+// success returns start position in BitStream
+// BitStream must contain previously askrawdemod and biphasedemoded data
+int gProxII_Demod(uint8_t BitStream[], size_t *size)
+{
+ size_t startIdx=0;
+ uint8_t preamble[] = {1,1,1,1,1,0};
+
+ uint8_t errChk = preambleSearch(BitStream, preamble, sizeof(preamble), size, &startIdx);
+ if (errChk == 0) return -3; //preamble not found
+ if (*size != 96) return -2; //should have found 96 bits
+ //check first 6 spacer bits to verify format
+ if (!BitStream[startIdx+5] && !BitStream[startIdx+10] && !BitStream[startIdx+15] && !BitStream[startIdx+20] && !BitStream[startIdx+25] && !BitStream[startIdx+30]){
+ //confirmed proper separator bits found
+ //return start position
+ return (int) startIdx;
+ }
+ return -5;
+}
+
//translate wave to 11111100000 (1 for each short wave 0 for each long wave)
size_t fsk_wave_demod(uint8_t * dest, size_t size, uint8_t fchigh, uint8_t fclow)
{
return;
}
+// by marshmellow
+// convert psk2 demod to psk1 demod
+// from only transition waves are 1s to phase shifts change bit
+void psk2TOpsk1(uint8_t *BitStream, size_t size)
+{
+ uint8_t phase=0;
+ for (size_t i=0; i<size; i++){
+ if (BitStream[i]==1){
+ phase ^=1;
+ }
+ BitStream[i]=phase;
+ }
+ return;
+}
+
// redesigned by marshmellow adjusted from existing decode functions
// indala id decoding - only tested on 26 bit tags, but attempted to make it work for more
int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert)
*clock = DetectPSKClock(dest, *size, *clock);
if (*clock==0) return -1;
int avgWaveVal=0, lastAvgWaveVal=0;
- //find first full wave
+ //find first phase shift
for (i=0; i<loopCnt; i++){
if (dest[i]+fc < dest[i+1] && dest[i+1] >= dest[i+2]){
if (waveStart == 0) {
int manrawdecode(uint8_t *BitStream, size_t *size);
int BiphaseRawDecode(uint8_t * BitStream, size_t *size, int offset, int invert);
int askrawdemod(uint8_t *BinStream, size_t *size, int *clk, int *invert, int maxErr, uint8_t amp);
+int gProxII_Demod(uint8_t BitStream[], size_t *size);
int HIDdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
int IOdemodFSK(uint8_t *dest, size_t size);
int fskdemod(uint8_t *dest, size_t size, uint8_t rfLen, uint8_t invert, uint8_t fchigh, uint8_t fclow);
uint32_t bytebits_to_byte(uint8_t* src, size_t numbits);
int nrzRawDemod(uint8_t *dest, size_t *size, int *clk, int *invert, int maxErr);
void psk1TOpsk2(uint8_t *BitStream, size_t size);
+void psk2TOpsk1(uint8_t *BitStream, size_t size);
int DetectNRZClock(uint8_t dest[], size_t size, int clock);
int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
void pskCleanWave(uint8_t *bitStream, size_t size);
#define CMD_EM4X_WRITE_WORD 0x0219
#define CMD_IO_DEMOD_FSK 0x021A
#define CMD_IO_CLONE_TAG 0x021B
-#define CMD_EM410X_DEMOD 0x021c
+#define CMD_EM410X_DEMOD 0x021c
// Sampling configuration for LF reader/snooper
#define CMD_SET_LF_SAMPLING_CONFIG 0x021d
+#define CMD_FSK_SIM_TAG 0x021E
+#define CMD_ASK_SIM_TAG 0x021F
+#define CMD_PSK_SIM_TAG 0x0220
/* CMD_SET_ADC_MUX: ext1 is 0 for lopkd, 1 for loraw, 2 for hipkd, 3 for hiraw */
projects / proxmark3-svn / commitdiff