X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f5ed4d12de19dcf59a3d5ecdcd9f75f5c747dd3e..add0504deaacb2736dd7ff04c95daf9ce1d025ad:/client/cmdlf.c diff --git a/client/cmdlf.c b/client/cmdlf.c index 2f55cd22..30c8bb22 100644 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@ -19,8 +19,8 @@ #include "cmdparser.h" #include "cmdmain.h" #include "cmddata.h" +#include "util.h" #include "cmdlf.h" -#include "cmdlfawid26.h" #include "cmdlfhid.h" #include "cmdlfti.h" #include "cmdlfem4x.h" @@ -28,6 +28,7 @@ #include "cmdlft55xx.h" #include "cmdlfpcf7931.h" #include "cmdlfio.h" +#include "lfdemod.h" static int CmdHelp(const char *Cmd); @@ -77,22 +78,18 @@ int CmdFlexdemod(const char *Cmd) GraphBuffer[start] = 2; GraphBuffer[start+1] = -2; + uint8_t bits[64] = {0x00}; - uint8_t bits[64]; - - int bit; + int bit, sum; i = start; for (bit = 0; bit < 64; bit++) { - int j; - int sum = 0; - for (j = 0; j < 16; j++) { + sum = 0; + for (int j = 0; j < 16; j++) { sum += GraphBuffer[i++]; } - if (sum > 0) { - bits[bit] = 1; - } else { - bits[bit] = 0; - } + + bits[bit] = (sum > 0) ? 1 : 0; + PrintAndLog("bit %d sum %d", bit, sum); } @@ -110,15 +107,14 @@ int CmdFlexdemod(const char *Cmd) } } + // HACK writing back to graphbuffer. GraphTraceLen = 32*64; i = 0; int phase = 0; for (bit = 0; bit < 64; bit++) { - if (bits[bit] == 0) { - phase = 0; - } else { - phase = 1; - } + + phase = (bits[bit] == 0) ? 0 : 1; + int j; for (j = 0; j < 32; j++) { GraphBuffer[i++] = phase; @@ -137,12 +133,14 @@ int CmdIndalaDemod(const char *Cmd) int state = -1; int count = 0; int i, j; + // worst case with GraphTraceLen=64000 is < 4096 // under normal conditions it's < 2048 + uint8_t rawbits[4096]; int rawbit = 0; int worst = 0, worstPos = 0; - PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); + // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); for (i = 0; i < GraphTraceLen-1; i += 2) { count += 1; if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) { @@ -171,8 +169,13 @@ int CmdIndalaDemod(const char *Cmd) count = 0; } } - PrintAndLog("Recovered %d raw bits", rawbit); - PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos); + + if (rawbit>0){ + PrintAndLog("Recovered %d raw bits, expected: %d", rawbit, GraphTraceLen/32); + PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos); + } else { + return 0; + } // Finding the start of a UID int uidlen, long_wait; @@ -183,6 +186,7 @@ int CmdIndalaDemod(const char *Cmd) uidlen = 64; long_wait = 29; } + int start; int first = 0; for (start = 0; start <= rawbit - uidlen; start++) { @@ -196,6 +200,7 @@ int CmdIndalaDemod(const char *Cmd) break; } } + if (start == rawbit - uidlen + 1) { PrintAndLog("nothing to wait for"); return 0; @@ -209,12 +214,12 @@ int CmdIndalaDemod(const char *Cmd) } // Dumping UID - uint8_t bits[224]; - char showbits[225]; - showbits[uidlen]='\0'; + uint8_t bits[224] = {0x00}; + char showbits[225] = {0x00}; int bit; i = start; int times = 0; + if (uidlen > rawbit) { PrintAndLog("Warning: not enough raw bits to get a full UID"); for (bit = 0; bit < rawbit; bit++) { @@ -236,8 +241,8 @@ int CmdIndalaDemod(const char *Cmd) //convert UID to HEX uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; int idx; - uid1=0; - uid2=0; + uid1 = uid2 = 0; + if (uidlen==64){ for( idx=0; idx<64; idx++) { if (showbits[idx] == '0') { @@ -251,11 +256,8 @@ int CmdIndalaDemod(const char *Cmd) PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2); } else { - uid3=0; - uid4=0; - uid5=0; - uid6=0; - uid7=0; + uid3 = uid4 = uid5 = uid6 = uid7 = 0; + for( idx=0; idx<224; idx++) { uid1=(uid1<<1)|(uid2>>31); uid2=(uid2<<1)|(uid3>>31); @@ -263,15 +265,19 @@ int CmdIndalaDemod(const char *Cmd) uid4=(uid4<<1)|(uid5>>31); uid5=(uid5<<1)|(uid6>>31); uid6=(uid6<<1)|(uid7>>31); - if (showbits[idx] == '0') uid7=(uid7<<1)|0; - else uid7=(uid7<<1)|1; + + if (showbits[idx] == '0') + uid7 = (uid7<<1) | 0; + else + uid7 = (uid7<<1) | 1; } PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); } // Checking UID against next occurrences - for (; i + uidlen <= rawbit;) { int failed = 0; + for (; i + uidlen <= rawbit;) { + failed = 0; for (bit = 0; bit < uidlen; bit++) { if (bits[bit] != rawbits[i++]) { failed = 1; @@ -283,9 +289,12 @@ int CmdIndalaDemod(const char *Cmd) } times += 1; } + PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen); // Remodulating for tag cloning + // HACK: 2015-01-04 this will have an impact on our new way of seening lf commands (demod) + // since this changes graphbuffer data. GraphTraceLen = 32*uidlen; i = 0; int phase = 0; @@ -303,20 +312,15 @@ int CmdIndalaDemod(const char *Cmd) } RepaintGraphWindow(); - return 0; + return 1; } int CmdIndalaClone(const char *Cmd) { - unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7; UsbCommand c; - uid1=0; - uid2=0; - uid3=0; - uid4=0; - uid5=0; - uid6=0; - uid7=0; + unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7; + + uid1 = uid2 = uid3 = uid4 = uid5 = uid6 = uid7 = 0; int n = 0, i = 0; if (strchr(Cmd,'l') != 0) { @@ -338,9 +342,7 @@ int CmdIndalaClone(const char *Cmd) c.d.asDwords[4] = uid5; c.d.asDwords[5] = uid6; c.d.asDwords[6] = uid7; - } - else - { + } else { while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { uid1 = (uid1 << 4) | (uid2 >> 28); uid2 = (uid2 << 4) | (n & 0xf); @@ -355,51 +357,189 @@ int CmdIndalaClone(const char *Cmd) return 0; } +int usage_lf_read() +{ + PrintAndLog("Usage: lf read"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" s silent run no printout"); + PrintAndLog("This function takes no arguments. "); + PrintAndLog("Use 'lf config' to set parameters."); + return 0; +} +int usage_lf_snoop() +{ + PrintAndLog("Usage: lf snoop"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog("This function takes no arguments. "); + PrintAndLog("Use 'lf config' to set parameters."); + return 0; +} + +int usage_lf_config() +{ + PrintAndLog("Usage: lf config [H|] [b ] [d ] [a 0|1]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" L Low frequency (125 KHz)"); + PrintAndLog(" H High frequency (134 KHz)"); + PrintAndLog(" q Manually set divisor. 88-> 134KHz, 95-> 125 Hz"); + PrintAndLog(" b Sets resolution of bits per sample. Default (max): 8"); + PrintAndLog(" d Sets decimation. A value of N saves only 1 in N samples. Default: 1"); + PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1"); + PrintAndLog(" t Sets trigger threshold. 0 means no threshold"); + PrintAndLog("Examples:"); + PrintAndLog(" lf config b 8 L"); + PrintAndLog(" Samples at 125KHz, 8bps."); + PrintAndLog(" lf config H b 4 d 3"); + PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with "); + PrintAndLog(" a resolution of 4 bits per sample."); + PrintAndLog(" lf read"); + PrintAndLog(" Performs a read (active field)"); + PrintAndLog(" lf snoop"); + PrintAndLog(" Performs a snoop (no active field)"); + return 0; +} + +int CmdLFSetConfig(const char *Cmd) +{ + + uint8_t divisor = 0;//Frequency divisor + uint8_t bps = 0; // Bits per sample + uint8_t decimation = 0; //How many to keep + bool averaging = 1; // Defaults to true + bool errors = FALSE; + int trigger_threshold =-1;//Means no change + uint8_t unsigned_trigg = 0; + + uint8_t cmdp =0; + while(param_getchar(Cmd, cmdp) != 0x00) + { + switch(param_getchar(Cmd, cmdp)) + { + case 'h': + return usage_lf_config(); + case 'H': + divisor = 88; + cmdp++; + break; + case 'L': + divisor = 95; + cmdp++; + break; + case 'q': + errors |= param_getdec(Cmd,cmdp+1,&divisor); + cmdp+=2; + break; + case 't': + errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg); + cmdp+=2; + if(!errors) trigger_threshold = unsigned_trigg; + break; + case 'b': + errors |= param_getdec(Cmd,cmdp+1,&bps); + cmdp+=2; + break; + case 'd': + errors |= param_getdec(Cmd,cmdp+1,&decimation); + cmdp+=2; + break; + case 'a': + averaging = param_getchar(Cmd,cmdp+1) == '1'; + cmdp+=2; + break; + default: + PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); + errors = 1; + break; + } + if(errors) break; + } + if(cmdp == 0) + { + errors = 1;// No args + } + + //Validations + if(errors) + { + return usage_lf_config(); + } + //Bps is limited to 8, so fits in lower half of arg1 + if(bps >> 8) bps = 8; + + sample_config config = { + decimation,bps,averaging,divisor,trigger_threshold + }; + //Averaging is a flag on high-bit of arg[1] + UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG}; + memcpy(c.d.asBytes,&config,sizeof(sample_config)); + SendCommand(&c); + return 0; +} + int CmdLFRead(const char *Cmd) { - UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K}; - // 'h' means higher-low-frequency, 134 kHz - if(*Cmd == 'h') { - c.arg[0] = 1; - } else if (*Cmd == '\0') { - c.arg[0] = 0; - } else if (sscanf(Cmd, "%"lli, &c.arg[0]) != 1) { - PrintAndLog("Samples 1: 'lf read'"); - PrintAndLog(" 2: 'lf read h'"); - PrintAndLog(" 3: 'lf read '"); - return 0; - } - SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); - return 0; + + uint8_t cmdp = 0; + bool arg1 = false; + if (param_getchar(Cmd, cmdp) == 'h') + { + return usage_lf_read(); + } + if (param_getchar(Cmd, cmdp) == 's') arg1 = true; //suppress print + //And ship it to device + UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}}; + SendCommand(&c); + //WaitForResponse(CMD_ACK,NULL); + if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) { + PrintAndLog("command execution time out"); + return 1; + } + + return 0; +} + +int CmdLFSnoop(const char *Cmd) +{ + uint8_t cmdp =0; + if(param_getchar(Cmd, cmdp) == 'h') + { + return usage_lf_snoop(); + } + + UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES}; + SendCommand(&c); + WaitForResponse(CMD_ACK,NULL); + return 0; } 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); + for (i = 0; i < (int)(GraphTraceLen / 2); i++){ + if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) { + CmdGetBitStream(""); break; } } } - +//appears to attempt to simulate manchester int CmdLFSim(const char *Cmd) { int i,j; - static int gap; sscanf(Cmd, "%i", &gap); /* convert to bitstream if necessary */ + ChkBitstream(Cmd); + //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}}; @@ -409,8 +549,9 @@ int CmdLFSim(const char *Cmd) } SendCommand(&c); WaitForResponse(CMD_ACK,NULL); - printf("."); + printf("."); } + printf("\n"); PrintAndLog("Starting to simulate"); UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}}; @@ -418,75 +559,388 @@ int CmdLFSim(const char *Cmd) return 0; } +int usage_lf_simfsk(void) +{ + //print help + PrintAndLog("Usage: lf simfsk [c ] [i] [H ] [L ] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); + PrintAndLog(" i invert data"); + PrintAndLog(" H Manually set the larger Field Clock"); + PrintAndLog(" L Manually set the smaller Field Clock"); + //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); + PrintAndLog(" d 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 ] [i] [b|m|r] [s] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c Manually set clock - can autodetect if using DemodBuffer"); + PrintAndLog(" i invert data"); + PrintAndLog(" b sim ask/biphase"); + PrintAndLog(" m sim ask/manchester - Default"); + PrintAndLog(" r sim ask/raw"); + PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); + PrintAndLog(" d 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 ] [i] [r ] [d ]"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" c 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 2|4|8 are valid carriers: default = 2"); + PrintAndLog(" d 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 encoding = 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 'b': + encoding=2; //biphase + cmdp++; + break; + case 'm': + encoding=1; + cmdp++; + break; + case 'r': + encoding=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 (encoding == 0) clk = clk/2; //askraw needs to double the clock speed + uint16_t arg1, arg2; + size_t size=DemodBufferLen; + arg1 = clk << 8 | encoding; + 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 */ + // Set ADC to twice the carrier for a slight supersampling + // HACK: not implemented in ARMSRC. + PrintAndLog("Not implemented yet."); UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}}; SendCommand(&c); return 0; } /* simulate an LF Manchester encoded tag with specified bitstream, clock rate and inter-id gap */ +/* int CmdLFSimManchester(const char *Cmd) { static int clock, gap; static char data[1024], gapstring[8]; - /* get settings/bits */ sscanf(Cmd, "%i %s %i", &clock, &data[0], &gap); - /* clear our graph */ ClearGraph(0); - /* fill it with our bitstream */ for (int i = 0; i < strlen(data) ; ++i) AppendGraph(0, clock, data[i]- '0'); - /* modulate */ CmdManchesterMod(""); - /* show what we've done */ RepaintGraphWindow(); - /* simulate */ sprintf(&gapstring[0], "%i", gap); CmdLFSim(gapstring); return 0; } - -int CmdLFSnoop(const char *Cmd) -{ - UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES}; - // 'h' means higher-low-frequency, 134 kHz - c.arg[0] = 0; - c.arg[1] = -1; - if (*Cmd == 0) { - // empty - } else if (*Cmd == 'l') { - sscanf(Cmd, "l %"lli, &c.arg[1]); - } else if(*Cmd == 'h') { - c.arg[0] = 1; - sscanf(Cmd, "h %"lli, &c.arg[1]); - } else if (sscanf(Cmd, "%"lli" %"lli, &c.arg[0], &c.arg[1]) < 1) { - PrintAndLog("use 'snoop' or 'snoop {l,h} [trigger threshold]', or 'snoop [trigger threshold]'"); - return 0; - } - SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); - - size_t BUFF_SIZE = 8000; - uint8_t data[BUFF_SIZE]; - - GetFromBigBuf(data,BUFF_SIZE,3560); //3560 -- should be offset.. - WaitForResponseTimeout(CMD_ACK,NULL, 1500); - - for (int j = 0; j < BUFF_SIZE; j++) { - GraphBuffer[j] = ((int)data[j]); - } - GraphTraceLen = BUFF_SIZE; - - return 0; -} +*/ int CmdVchDemod(const char *Cmd) { @@ -564,32 +1018,175 @@ int CmdVchDemod(const char *Cmd) return 0; } +//by marshmellow +int CmdLFfind(const char *Cmd) +{ + int ans=0; + char cmdp = param_getchar(Cmd, 0); + char testRaw = param_getchar(Cmd, 1); + if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') { + PrintAndLog("Usage: lf search <0|1> [u]"); + PrintAndLog(" , if not set, try reading data from tag."); + PrintAndLog(" [Search for Unknown tags] , if not set, reads only known tags."); + PrintAndLog(""); + PrintAndLog(" sample: lf search = try reading data from tag & search for known tags"); + PrintAndLog(" : lf search 1 = use data from GraphBuffer & search for known tags"); + PrintAndLog(" : lf search u = try reading data from tag & search for known and unknown tags"); + PrintAndLog(" : lf search 1 u = use data from GraphBuffer & search for known and unknown tags"); + return 0; + } + + if (!offline && (cmdp != '1')){ + ans=CmdLFRead(""); + ans=CmdSamples("20000"); + } else if (GraphTraceLen < 1000) { + PrintAndLog("Data in Graphbuffer was too small."); + return 0; + } + if (cmdp == 'u' || cmdp == 'U') testRaw = 'u'; + + PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag"); + PrintAndLog("False Positives ARE possible\n"); + PrintAndLog("\nChecking for known tags:\n"); + + ans=CmdFSKdemodIO(""); + + if (ans>0) { + PrintAndLog("\nValid IO Prox ID Found!"); + return 1; + } + + ans=CmdFSKdemodPyramid(""); + if (ans>0) { + PrintAndLog("\nValid Pyramid ID Found!"); + return 1; + } + + ans=CmdFSKdemodParadox(""); + if (ans>0) { + PrintAndLog("\nValid Paradox ID Found!"); + return 1; + } + + ans=CmdFSKdemodAWID(""); + if (ans>0) { + PrintAndLog("\nValid AWID ID Found!"); + return 1; + } + + ans=CmdFSKdemodHID(""); + if (ans>0) { + PrintAndLog("\nValid HID Prox ID Found!"); + return 1; + } + + //add psk and indala + ans=CmdIndalaDecode(""); + if (ans>0) { + PrintAndLog("\nValid Indala ID Found!"); + return 1; + } + + ans=CmdAskEM410xDemod(""); + if (ans>0) { + 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) + PrintAndLog("\nChecking for Unknown tags:\n"); + ans=AutoCorrelate(4000, FALSE, FALSE); + + if (ans > 0) { + + PrintAndLog("Possible Auto Correlation of %d repeating samples",ans); + + if ( ans % 8 == 0) { + int bytes = (ans / 8); + PrintAndLog("Possible %d bytes", bytes); + int blocks = 0; + if ( bytes % 2 == 0) { + blocks = (bytes / 2); + PrintAndLog("Possible 2 blocks, width %d", blocks); + } + if ( bytes % 4 == 0) { + blocks = (bytes / 4); + PrintAndLog("Possible 4 blocks, width %d", blocks); + } + if ( bytes % 8 == 0) { + blocks = (bytes / 8); + PrintAndLog("Possible 8 blocks, width %d", blocks); + } + if ( bytes % 16 == 0) { + blocks = (bytes / 16); + PrintAndLog("Possible 16 blocks, width %d", blocks); + } + } + } + ans=GetFskClock("",FALSE,FALSE); //CmdDetectClockRate("F"); // + if (ans != 0){ //fsk + ans=FSKrawDemod("",FALSE); + if (ans>0) { + PrintAndLog("\nUnknown FSK Modulated Tag Found!"); + printDemodBuff(); + return 1; + } + } + ans=ASKmanDemod("",FALSE,FALSE); + if (ans>0) { + PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!"); + PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'"); + printDemodBuff(); + return 1; + } + ans=CmdPSK1rawDemod(""); + if (ans>0) { + PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'"); + PrintAndLog("\nCould also be PSK3 - [currently not supported]"); + PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod"); + printDemodBuff(); + return 1; + } + PrintAndLog("\nNo Data Found!\n"); + } + return 0; +} + static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help"}, - {"cmdread", CmdLFCommandRead, 0, " <'0' period> <'1' period> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"}, + {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, + {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, + {"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"}, + {"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"}, + {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"}, + {"ti", CmdLFTI, 1, "{ TI RFIDs... }"}, + {"t55xx", CmdLFT55XX, 1, "{ T55X7 RFIDs... }"}, + {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, + + {"cmdread", CmdLFCommandRead, 0, " <'0' period> <'1' period> ['h'] -- Modulate LF reader field to send command before read (all periods in microseconds) (option 'h' for 134)"}, {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"}, {"indalademod", CmdIndalaDemod, 1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"}, - {"indalaclone", CmdIndalaClone, 0, " ['l']-- Clone Indala to T55x7 (UID in HEX)(option 'l' for 224 UID"}, - {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, - - - {"read", CmdLFRead, 0, "['h' or ] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134, alternatively: f=12MHz/(divisor+1))"}, + {"indalaclone", CmdIndalaClone, 0, " ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"}, + {"read", CmdLFRead, 0, "['s' silent] 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 ] -- Simulate LF ASK tag from demodbuffer or input"}, + {"simfsk", CmdLFfskSim, 0, "[c ] [i] [H ] [L ] [d ] -- Simulate LF FSK tag from demodbuffer or input"}, + {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c ] [i] [r ] [d ] -- 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, " [GAP] Simulate arbitrary Manchester LF tag"}, + //{"simman", CmdLFSimManchester, 0, " [GAP] Simulate arbitrary Manchester LF tag"}, {"snoop", CmdLFSnoop, 0, "['l'|'h'|] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"}, - - {"avid", CmdLFAWID26, 1, "{ AWID26 tags }"}, - {"em4x", CmdLFEM4X, 1, "{ EM4X tags }"}, - {"hid", CmdLFHID, 1, "{ HID tags }"}, - {"hitag", CmdLFHitag, 1, "{ Hitag tags and transponders }"}, - {"io", CmdLFIO, 1, "{ ioProx tags }"}, - {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 tags }"}, - {"ti", CmdLFTI, 1, "{ TI tags }"}, - {"t55xx", CmdLFT55XX, 1, "{ T55xx tags }"}, - + {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, {NULL, NULL, 0, NULL} };