From: Martin Holst Swende Date: Sat, 31 Jan 2015 17:21:38 +0000 (+0100) Subject: Merged with master X-Git-Tag: v2.0.0-rc1~33^2 X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/refs/pull/54/head?hp=-c Merged with master --- 0644d5e3a3ed255fea1084c0af564c00f592b36c diff --combined armsrc/Makefile index 4e460623,bbcbcb1c..fb693006 --- a/armsrc/Makefile +++ b/armsrc/Makefile @@@ -10,15 -10,16 +10,16 @@@ APP_INCLUDES = apps. #remove one of the following defines and comment out the relevant line #in the next section to remove that particular feature from compilation - APP_CFLAGS = -DWITH_LF -DWITH_ISO15693 -DWITH_ISO14443a -DWITH_ISO14443b -DWITH_ICLASS -DWITH_LEGICRF -DWITH_HITAG -fno-strict-aliasing + APP_CFLAGS = -DWITH_LF -DWITH_ISO15693 -DWITH_ISO14443a -DWITH_ISO14443b -DWITH_ICLASS -DWITH_LEGICRF -DWITH_HITAG -DWITH_CRC -fno-strict-aliasing #-DWITH_LCD #SRC_LCD = fonts.c LCD.c -SRC_LF = lfops.c hitag2.c +SRC_LF = lfops.c hitag2.c lfsampling.c SRC_ISO15693 = iso15693.c iso15693tools.c SRC_ISO14443a = epa.c iso14443a.c mifareutil.c mifarecmd.c mifaresniff.c SRC_ISO14443b = iso14443.c - SRC_CRAPTO1 = crapto1.c crypto1.c + SRC_CRAPTO1 = crapto1.c crypto1.c des.c aes.c + SRC_CRC = iso14443crc.c crc.c crc16.c crc32.c THUMBSRC = start.c \ $(SRC_LCD) \ @@@ -34,15 -35,14 +35,14 @@@ # These are to be compiled in ARM mode ARMSRC = fpgaloader.c \ legicrf.c \ - iso14443crc.c \ - crc16.c \ lfdemod.c \ $(SRC_ISO14443a) \ $(SRC_ISO14443b) \ $(SRC_CRAPTO1) \ + $(SRC_CRC) \ legic_prng.c \ iclass.c \ - crc.c + BigBuf.c \ # stdint.h provided locally until GCC 4.5 becomes C99 compliant APP_CFLAGS += -I. diff --combined armsrc/appmain.c index 32b7e592,791ad4f8..cb1b9f73 --- a/armsrc/appmain.c +++ b/armsrc/appmain.c @@@ -23,7 -23,7 +23,7 @@@ #include "legicrf.h" #include - +#include "lfsampling.h" #ifdef WITH_LCD #include "LCD.h" #endif @@@ -42,12 -42,6 +42,6 @@@ int ToSendMax static int ToSendBit; struct common_area common_area __attribute__((section(".commonarea"))); - void BufferClear(void) - { - memset(BigBuf,0,sizeof(BigBuf)); - Dbprintf("Buffer cleared (%i bytes)",sizeof(BigBuf)); - } - void ToSendReset(void) { ToSendMax = -1; @@@ -246,7 -240,10 +240,10 @@@ void MeasureAntennaTuningHf(void void SimulateTagHfListen(void) { - uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET; + // ToDo: historically this used the free buffer, which was 2744 Bytes long. + // There might be a better size to be defined: + #define HF_14B_SNOOP_BUFFER_SIZE 2744 + uint8_t *dest = BigBuf_malloc(HF_14B_SNOOP_BUFFER_SIZE); uint8_t v = 0; int i; int p = 0; @@@ -281,7 -278,7 +278,7 @@@ p = 0; i++; - if(i >= FREE_BUFFER_SIZE) { + if(i >= HF_14B_SNOOP_BUFFER_SIZE) { break; } } @@@ -629,17 -626,16 +626,17 @@@ void UsbPacketReceived(uint8_t *packet switch(c->cmd) { #ifdef WITH_LF + case CMD_SET_LF_SAMPLING_CONFIG: + setSamplingConfig((sample_config *) c->d.asBytes); + break; case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K: - AcquireRawAdcSamples125k(c->arg[0]); - cmd_send(CMD_ACK,0,0,0,0,0); + cmd_send(CMD_ACK,SampleLF(),0,0,0,0); break; case CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K: ModThenAcquireRawAdcSamples125k(c->arg[0],c->arg[1],c->arg[2],c->d.asBytes); break; case CMD_LF_SNOOP_RAW_ADC_SAMPLES: - SnoopLFRawAdcSamples(c->arg[0], c->arg[1]); - cmd_send(CMD_ACK,0,0,0,0,0); + cmd_send(CMD_ACK,SnoopLF(),0,0,0,0); break; case CMD_HID_DEMOD_FSK: CmdHIDdemodFSK(c->arg[0], 0, 0, 1); @@@ -802,9 -798,18 +799,18 @@@ case CMD_MIFAREU_READBL: MifareUReadBlock(c->arg[0],c->d.asBytes); break; + case CMD_MIFAREUC_AUTH1: + MifareUC_Auth1(c->arg[0],c->d.asBytes); + break; + case CMD_MIFAREUC_AUTH2: + MifareUC_Auth2(c->arg[0],c->d.asBytes); + break; case CMD_MIFAREU_READCARD: MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes); - break; + break; + case CMD_MIFAREUC_READCARD: + MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes); + break; case CMD_MIFARE_READSC: MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes); break; @@@ -859,6 -864,7 +865,7 @@@ case CMD_MIFARE_SNIFFER: SniffMifare(c->arg[0]); break; + #endif #ifdef WITH_ICLASS @@@ -882,7 -888,7 +889,7 @@@ break; case CMD_BUFF_CLEAR: - BufferClear(); + BigBuf_Clear(); break; case CMD_MEASURE_ANTENNA_TUNING: @@@ -906,18 -912,18 +913,18 @@@ case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: LED_B_ON(); + uint8_t *BigBuf = BigBuf_get_addr(); for(size_t i=0; iarg[1]; i += USB_CMD_DATA_SIZE) { size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE); - cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,0,((byte_t*)BigBuf)+c->arg[0]+i,len); + cmd_send(CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K,i,len,traceLen,BigBuf+c->arg[0]+i,len); } // Trigger a finish downloading signal with an ACK frame - // We put a 1 in arg[0] to alert the host we're also sending sample_config - cmd_send(CMD_ACK,1,0,0,getSamplingConfig(),sizeof(sample_config)); - cmd_send(CMD_ACK,0,0,traceLen,0,0); ++ cmd_send(CMD_ACK,1,0,traceLen,getSamplingConfig(),sizeof(sample_config)); LED_B_OFF(); break; case CMD_DOWNLOADED_SIM_SAMPLES_125K: { - uint8_t *b = (uint8_t *)BigBuf; + uint8_t *b = BigBuf_get_addr(); memcpy(b+c->arg[0], c->d.asBytes, USB_CMD_DATA_SIZE); cmd_send(CMD_ACK,0,0,0,0,0); break; diff --combined armsrc/apps.h index 89440bfe,5ef87623..58a2a621 --- a/armsrc/apps.h +++ b/armsrc/apps.h @@@ -17,48 -17,10 +17,10 @@@ #include "common.h" #include "hitag2.h" #include "mifare.h" - - // The large multi-purpose buffer, typically used to hold A/D samples, - // maybe processed in some way. - #define BIGBUF_SIZE 40000 - uint32_t BigBuf[BIGBUF_SIZE / sizeof(uint32_t)]; - #define TRACE_OFFSET 0 - #define TRACE_SIZE 3000 - #define RECV_CMD_OFFSET (TRACE_OFFSET + TRACE_SIZE) - #define MAX_FRAME_SIZE 256 - #define MAX_PARITY_SIZE ((MAX_FRAME_SIZE + 1)/ 8) - #define RECV_CMD_PAR_OFFSET (RECV_CMD_OFFSET + MAX_FRAME_SIZE) - #define RECV_RESP_OFFSET (RECV_CMD_PAR_OFFSET + MAX_PARITY_SIZE) - #define RECV_RESP_PAR_OFFSET (RECV_RESP_OFFSET + MAX_FRAME_SIZE) - #define CARD_MEMORY_OFFSET (RECV_RESP_PAR_OFFSET + MAX_PARITY_SIZE) - #define CARD_MEMORY_SIZE 4096 - #define DMA_BUFFER_OFFSET CARD_MEMORY_OFFSET - #define DMA_BUFFER_SIZE CARD_MEMORY_SIZE - #define FREE_BUFFER_OFFSET (CARD_MEMORY_OFFSET + CARD_MEMORY_SIZE) - #define FREE_BUFFER_SIZE (BIGBUF_SIZE - FREE_BUFFER_OFFSET - 1) - - /* - The statements above translates into this : - BIGBUF_SIZE = 40000 - TRACE_OFFSET = 0 - TRACE_SIZE = 3000 - RECV_CMD_OFFSET = 3000 - MAX_FRAME_SIZE = 256 - MAX_PARITY_SIZE = 32 - RECV_CMD_PAR_OFFSET = 3256 - RECV_RESP_OFFSET = 3288 - RECV_RESP_PAR_OFFSET= 3544 - CARD_MEMORY_OFFSET = 3576 - CARD_MEMORY_SIZE = 4096 - DMA_BUFFER_OFFSET = 3576 - DMA_BUFFER_SIZE = 4096 - FREE_BUFFER_OFFSET = 7672 - FREE_BUFFER_SIZE = 32327 - */ + #include "../common/crc32.h" + #include "BigBuf.h" extern const uint8_t OddByteParity[256]; - extern uint8_t *trace; // = (uint8_t *) BigBuf; - extern int traceLen; // = 0; extern int rsamples; // = 0; extern int tracing; // = TRUE; extern uint8_t trigger; @@@ -81,9 -43,11 +43,8 @@@ int AvgAdc(int ch) void ToSendStuffBit(int b); void ToSendReset(void); void ListenReaderField(int limit); -void AcquireRawAdcSamples125k(int at134khz); -void SnoopLFRawAdcSamples(int divisor, int trigger_threshold); -void DoAcquisition125k(int trigger_threshold); extern int ToSendMax; extern uint8_t ToSend[]; - extern uint32_t BigBuf[]; /// fpga.h void FpgaSendCommand(uint16_t cmd, uint16_t v); @@@ -141,10 -105,6 +102,10 @@@ void SetAdcMuxFor(uint32_t whichGpio) #define FPGA_HF_ISO14443A_READER_MOD (4<<0) /// lfops.h +extern uint8_t decimation; +extern uint8_t bits_per_sample ; +extern bool averaging; + void AcquireRawAdcSamples125k(int divisor); void ModThenAcquireRawAdcSamples125k(int delay_off,int period_0,int period_1,uint8_t *command); void ReadTItag(void); @@@ -199,7 -159,9 +160,9 @@@ void ReaderMifare(bool first_try) int32_t dist_nt(uint32_t nt1, uint32_t nt2); void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *data); void MifareUReadBlock(uint8_t arg0,uint8_t *datain); - void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain); + void MifareUC_Auth1(uint8_t arg0, uint8_t *datain); + void MifareUC_Auth2(uint32_t arg0, uint8_t *datain); + void MifareUReadCard(uint8_t arg0, int Pages, uint8_t *datain); void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain); void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain); void MifareUWriteBlock(uint8_t arg0,uint8_t *datain); @@@ -216,6 -178,25 +179,25 @@@ void MifareCSetBlock(uint32_t arg0, uin void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain); void MifareCIdent(); // is "magic chinese" card? + //desfire + void Mifare_DES_Auth1(uint8_t arg0,uint8_t *datain); + void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain); + + // mifaredesfire.h + bool InitDesfireCard(); + void MifareSendCommand(uint8_t arg0,uint8_t arg1, uint8_t *datain); + void MifareDesfireGetInformation(); + void MifareDES_Auth1(uint8_t arg0,uint8_t arg1,uint8_t arg2, uint8_t *datain); + void ReaderMifareDES(uint32_t param, uint32_t param2, uint8_t * datain); + int DesfireAPDU(uint8_t *cmd, size_t cmd_len, uint8_t *dataout); + size_t CreateAPDU( uint8_t *datain, size_t len, uint8_t *dataout); + void OnSuccess(); + void OnError(uint8_t reason); + + + + + /// iso15693.h void RecordRawAdcSamplesIso15693(void); void AcquireRawAdcSamplesIso15693(void); diff --combined armsrc/lfops.c index 43af4eed,7b6fa97a..479da772 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@@ -15,44 -15,130 +15,44 @@@ #include "crc16.h" #include "string.h" #include "lfdemod.h" +#include "lfsampling.h" /** -* Does the sample acquisition. If threshold is specified, the actual sampling -* is not commenced until the threshold has been reached. -* @param trigger_threshold - the threshold -* @param silent - is true, now outputs are made. If false, dbprints the status -*/ -void DoAcquisition125k_internal(int trigger_threshold,bool silent) -{ - uint8_t *dest = BigBuf_get_addr(); - int n = BigBuf_max_traceLen(); - int i; - - memset(dest, 0, n); - i = 0; - for(;;) { - if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) { - AT91C_BASE_SSC->SSC_THR = 0x43; - LED_D_ON(); - } - if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) { - dest[i] = (uint8_t)AT91C_BASE_SSC->SSC_RHR; - LED_D_OFF(); - if (trigger_threshold != -1 && dest[i] < trigger_threshold) - continue; - else - trigger_threshold = -1; - if (++i >= n) break; - } - } - if(!silent) - { - Dbprintf("buffer samples: %02x %02x %02x %02x %02x %02x %02x %02x ...", - dest[0], dest[1], dest[2], dest[3], dest[4], dest[5], dest[6], dest[7]); - - } -} -/** -* Perform sample aquisition. -*/ -void DoAcquisition125k(int trigger_threshold) -{ - DoAcquisition125k_internal(trigger_threshold, false); -} - -/** -* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream -* if not already loaded, sets divisor and starts up the antenna. -* @param divisor : 1, 88> 255 or negative ==> 134.8 KHz -* 0 or 95 ==> 125 KHz -* -**/ -void LFSetupFPGAForADC(int divisor, bool lf_field) -{ - FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - if ( (divisor == 1) || (divisor < 0) || (divisor > 255) ) - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz - else if (divisor == 0) - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz - else - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor); - - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | (lf_field ? FPGA_LF_ADC_READER_FIELD : 0)); - - // Connect the A/D to the peak-detected low-frequency path. - SetAdcMuxFor(GPIO_MUXSEL_LOPKD); - // Give it a bit of time for the resonant antenna to settle. - SpinDelay(50); - // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); -} -/** -* Initializes the FPGA, and acquires the samples. -**/ -void AcquireRawAdcSamples125k(int divisor) -{ - LFSetupFPGAForADC(divisor, true); - // Now call the acquisition routine - DoAcquisition125k_internal(-1,false); -} -/** -* Initializes the FPGA for snoop-mode, and acquires the samples. -**/ - -void SnoopLFRawAdcSamples(int divisor, int trigger_threshold) -{ - LFSetupFPGAForADC(divisor, false); - DoAcquisition125k(trigger_threshold); -} - + * Function to do a modulation and then get samples. + * @param delay_off + * @param period_0 + * @param period_1 + * @param command + */ void ModThenAcquireRawAdcSamples125k(int delay_off, int period_0, int period_1, uint8_t *command) { - /* Make sure the tag is reset */ - FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(2500); - - int divisor_used = 95; // 125 KHz // see if 'h' was specified if (command[strlen((char *) command) - 1] == 'h') divisor_used = 88; // 134.8 KHz + sample_config sc = { 0,0,1, divisor_used, 0}; + setSamplingConfig(&sc); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); - // Give it a bit of time for the resonant antenna to settle. - SpinDelay(50); + /* Make sure the tag is reset */ + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(2500); - // And a little more time for the tag to fully power up - SpinDelay(2000); + LFSetupFPGAForADC(sc.divisor, 1); - // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); + // And a little more time for the tag to fully power up + SpinDelay(2000); // now modulate the reader field while(*command != '\0' && *command != ' ') { FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LED_D_OFF(); SpinDelayUs(delay_off); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); LED_D_ON(); @@@ -64,16 -150,14 +64,16 @@@ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); LED_D_OFF(); SpinDelayUs(delay_off); - FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor_used); + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); // now do the read - DoAcquisition125k(-1); + DoAcquisition_config(false); } + + /* blank r/w tag data stream ...0000000000000000 01111111 1010101010101010101010101010101010101010101010101010101010101010 @@@ -93,8 -177,8 +93,8 @@@ void ReadTItag(void #define FREQLO 123200 #define FREQHI 134200 - signed char *dest = (signed char *)BigBuf; - int n = sizeof(BigBuf); + signed char *dest = (signed char *)BigBuf_get_addr(); + uint16_t n = BigBuf_max_traceLen(); // 128 bit shift register [shift3:shift2:shift1:shift0] uint32_t shift3 = 0, shift2 = 0, shift1 = 0, shift0 = 0; @@@ -246,7 -330,8 +246,8 @@@ void AcquireTiType(void #define TIBUFLEN 1250 // clear buffer - memset(BigBuf,0,sizeof(BigBuf)); + uint32_t *BigBuf = (uint32_t *)BigBuf_get_addr(); + memset(BigBuf,0,BigBuf_max_traceLen()/sizeof(uint32_t)); // Set up the synchronous serial port AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DIN; @@@ -294,7 -379,7 +295,7 @@@ AT91C_BASE_PIOA->PIO_PDR = GPIO_SSC_DOUT; AT91C_BASE_PIOA->PIO_ASR = GPIO_SSC_DIN | GPIO_SSC_DOUT; - char *dest = (char *)BigBuf; + char *dest = (char *)BigBuf_get_addr(); n = TIBUFLEN*32; // unpack buffer for (i=TIBUFLEN-1; i>=0; i--) { @@@ -383,7 -468,7 +384,7 @@@ void WriteTItag(uint32_t idhi, uint32_ void SimulateTagLowFrequency(int period, int gap, int ledcontrol) { int i; - uint8_t *tab = (uint8_t *)BigBuf; + uint8_t *tab = BigBuf_get_addr(); FpgaDownloadAndGo(FPGA_BITSTREAM_LF); FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_EDGE_DETECT); @@@ -443,7 -528,7 +444,7 @@@ void SimulateTagLowFrequencyBidir(int d // compose fc/8 fc/10 waveform static void fc(int c, int *n) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int idx; // for when we want an fc8 pattern every 4 logical bits @@@ -547,11 -632,11 +548,11 @@@ void CmdHIDsimTAG(int hi, int lo, int l // loop to get raw HID waveform then FSK demodulate the TAG ID from it void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) { - uint8_t *dest = (uint8_t *)BigBuf; - - size_t size=0; //, found=0; + uint8_t *dest = BigBuf_get_addr(); + const size_t sizeOfBigBuff = BigBuf_max_traceLen(); + size_t size = 0; uint32_t hi2=0, hi=0, lo=0; - + int idx=0; // Configure to go in 125Khz listen mode LFSetupFPGAForADC(95, true); @@@ -560,13 -645,12 +561,12 @@@ WDT_HIT(); if (ledcontrol) LED_A_ON(); - DoAcquisition125k_internal(-1,true); - // FSK demodulator + DoAcquisition_default(-1,true); + // FSK demodulator - size = HIDdemodFSK(dest, sizeof(BigBuf), &hi2, &hi, &lo); - - WDT_HIT(); - - if (size>0 && lo>0){ + size = sizeOfBigBuff; //variable size will change after demod so re initialize it before use + idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo); + + if (idx>0 && lo>0){ // final loop, go over previously decoded manchester data and decode into usable tag ID // 111000 bit pattern represent start of frame, 01 pattern represents a 1 and 10 represents a 0 if (hi2 != 0){ //extra large HID tags @@@ -622,6 -706,8 +622,8 @@@ } if (findone){ if (ledcontrol) LED_A_OFF(); + *high = hi; + *low = lo; return; } // reset @@@ -635,9 -721,9 +637,9 @@@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); - size_t size=0; + size_t size=0, idx=0; int clk=0, invert=0, errCnt=0; uint64_t lo=0; // Configure to go in 125Khz listen mode @@@ -648,8 -734,8 +650,8 @@@ WDT_HIT(); if (ledcontrol) LED_A_ON(); - DoAcquisition125k_internal(-1,true); - size = BigBuf_max_traceLen(); + DoAcquisition_default(-1,true); - size = sizeof(BigBuf); ++ size = BigBuf_max_traceLen(); //Dbprintf("DEBUG: Buffer got"); //askdemod and manchester decode errCnt = askmandemod(dest, &size, &clk, &invert); @@@ -657,7 -743,7 +659,7 @@@ WDT_HIT(); if (errCnt>=0){ - lo = Em410xDecode(dest,size); + lo = Em410xDecode(dest, &size, &idx); //Dbprintf("DEBUG: EM GOT"); if (lo>0){ Dbprintf("EM TAG ID: %02x%08x - (%05d_%03d_%08d)", @@@ -669,6 -755,8 +671,8 @@@ } if (findone){ if (ledcontrol) LED_A_OFF(); + *high=lo>>32; + *low=lo & 0xFFFFFFFF; return; } } else{ @@@ -687,7 -775,7 +691,7 @@@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int idx=0; uint32_t code=0, code2=0; uint8_t version=0; @@@ -699,10 -787,10 +703,10 @@@ while(!BUTTON_PRESS()) { WDT_HIT(); if (ledcontrol) LED_A_ON(); - DoAcquisition125k_internal(-1,true); - //fskdemod and get start index + DoAcquisition_default(-1,true); + //fskdemod and get start index WDT_HIT(); - idx = IOdemodFSK(dest,sizeof(BigBuf)); + idx = IOdemodFSK(dest, BigBuf_max_traceLen()); if (idx>0){ //valid tag found @@@ -735,6 -823,8 +739,8 @@@ if (findone){ if (ledcontrol) LED_A_OFF(); //LED_A_OFF(); + *high=code; + *low=code2; return; } code=code2=0; @@@ -874,11 -964,11 +880,11 @@@ void T55xxWriteBlock(uint32_t Data, uin // Read one card block in page 0 void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) { - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); //int m=0, i=0; //enio adjustment 12/10/14 uint32_t m=0, i=0; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path. @@@ -939,11 -1029,11 +945,11 @@@ // Read card traceability data (page 1) void T55xxReadTrace(void){ - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int m=0, i=0; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path. @@@ -1293,8 -1383,8 +1299,8 @@@ void CopyIndala224toT55x7(int uid1, in int DemodPCF7931(uint8_t **outBlocks) { uint8_t BitStream[256]; uint8_t Blocks[8][16]; - uint8_t *GraphBuffer = (uint8_t *)BigBuf; - int GraphTraceLen = sizeof(BigBuf); + uint8_t *GraphBuffer = BigBuf_get_addr(); + int GraphTraceLen = BigBuf_max_traceLen(); int i, j, lastval, bitidx, half_switch; int clock = 64; int tolerance = clock / 8; @@@ -1304,9 -1394,7 +1310,9 @@@ int lmin=128, lmax=128; uint8_t dir; - AcquireRawAdcSamples125k(0); + LFSetupFPGAForADC(95, true); + DoAcquisition_default(0, 0); + lmin = 64; lmax = 192; @@@ -1713,7 -1801,7 +1719,7 @@@ void EM4xLogin(uint32_t Password) void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { uint8_t fwd_bit_count; - uint8_t *dest = (uint8_t *)BigBuf; + uint8_t *dest = BigBuf_get_addr(); int m=0, i=0; //If password mode do login @@@ -1723,7 -1811,7 +1729,7 @@@ fwd_bit_count = Prepare_Cmd( FWD_CMD_READ ); fwd_bit_count += Prepare_Addr( Address ); - m = sizeof(BigBuf); + m = BigBuf_max_traceLen(); // Clear destination buffer before sending the command memset(dest, 128, m); // Connect the A/D to the peak-detected low-frequency path. diff --combined armsrc/lfsampling.c index 6314ac74,00000000..348549ef mode 100644,000000..100644 --- a/armsrc/lfsampling.c +++ b/armsrc/lfsampling.c @@@ -1,251 -1,0 +1,252 @@@ +//----------------------------------------------------------------------------- +// This code is licensed to you under the terms of the GNU GPL, version 2 or, +// at your option, any later version. See the LICENSE.txt file for the text of +// the license. +//----------------------------------------------------------------------------- +// Miscellaneous routines for low frequency sampling. +//----------------------------------------------------------------------------- + +#include "proxmark3.h" +#include "apps.h" +#include "util.h" +#include "string.h" + +#include "lfsampling.h" + +sample_config config = { 1, 8, 1, 88, 0 } ; + +void printConfig() +{ + Dbprintf("Sampling config: "); + Dbprintf(" [q] divisor: %d ", config.divisor); + Dbprintf(" [b] bps: %d ", config.bits_per_sample); + Dbprintf(" [d] decimation: %d ", config.decimation); + Dbprintf(" [a] averaging: %d ", config.averaging); + Dbprintf(" [t] trigger threshold: %d ", config.trigger_threshold); +} + + +/** + * Called from the USB-handler to set the sampling configuration + * The sampling config is used for std reading and snooping. + * + * Other functions may read samples and ignore the sampling config, + * such as functions to read the UID from a prox tag or similar. + * + * Values set to '0' implies no change (except for averaging) + * @brief setSamplingConfig + * @param sc + */ +void setSamplingConfig(sample_config *sc) +{ + if(sc->divisor != 0) config.divisor = sc->divisor; + if(sc->bits_per_sample!= 0) config.bits_per_sample= sc->bits_per_sample; + if(sc->decimation!= 0) config.decimation= sc->decimation; + if(sc->trigger_threshold != -1) config.trigger_threshold= sc->trigger_threshold; + + config.averaging= sc->averaging; + if(config.bits_per_sample > 8) config.bits_per_sample = 8; + if(config.decimation < 1) config.decimation = 1; + + printConfig(); +} + +sample_config* getSamplingConfig() +{ + return &config; +} + +typedef struct { + uint8_t * buffer; + uint32_t numbits; + uint32_t position; +} BitstreamOut; + + +/** + * @brief Pushes bit onto the stream + * @param stream + * @param bit + */ +void pushBit( BitstreamOut* stream, uint8_t bit) +{ + int bytepos = stream->position >> 3; // divide by 8 + int bitpos = stream->position & 7; + *(stream->buffer+bytepos) |= (bit > 0) << (7 - bitpos); + stream->position++; + stream->numbits++; +} + +/** +* Setup the FPGA to listen for samples. This method downloads the FPGA bitstream +* if not already loaded, sets divisor and starts up the antenna. +* @param divisor : 1, 88> 255 or negative ==> 134.8 KHz +* 0 or 95 ==> 125 KHz +* +**/ +void LFSetupFPGAForADC(int divisor, bool lf_field) +{ + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + if ( (divisor == 1) || (divisor < 0) || (divisor > 255) ) + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 88); //134.8Khz + else if (divisor == 0) + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz + else + FpgaSendCommand(FPGA_CMD_SET_DIVISOR, divisor); + + FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | (lf_field ? FPGA_LF_ADC_READER_FIELD : 0)); + + // Connect the A/D to the peak-detected low-frequency path. + SetAdcMuxFor(GPIO_MUXSEL_LOPKD); + // Give it a bit of time for the resonant antenna to settle. + SpinDelay(50); + // Now set up the SSC to get the ADC samples that are now streaming at us. + FpgaSetupSsc(); +} + + +/** + * Does the sample acquisition. If threshold is specified, the actual sampling + * is not commenced until the threshold has been reached. + * This method implements decimation and quantization in order to + * be able to provide longer sample traces. + * Uses the following global settings: + * @param decimation - how much should the signal be decimated. A decimation of N means we keep 1 in N samples, etc. + * @param bits_per_sample - bits per sample. Max 8, min 1 bit per sample. + * @param averaging If set to true, decimation will use averaging, so that if e.g. decimation is 3, the sample + * value that will be used is the average value of the three samples. + * @param trigger_threshold - a threshold. The sampling won't commence until this threshold has been reached. Set + * to -1 to ignore threshold. + * @param silent - is true, now outputs are made. If false, dbprints the status + * @return the number of bits occupied by the samples. + */ + +uint32_t DoAcquisition(uint8_t decimation, uint32_t bits_per_sample, bool averaging, int trigger_threshold,bool silent) +{ + //. - uint8_t *dest = (uint8_t *)BigBuf; - int bufsize = BIGBUF_SIZE; ++ uint8_t *dest = BigBuf_get_addr(); ++ int bufsize = BigBuf_max_traceLen(); ++ + memset(dest, 0, bufsize); + + if(bits_per_sample < 1) bits_per_sample = 1; + if(bits_per_sample > 8) bits_per_sample = 8; + + if(decimation < 1) decimation = 1; + + // Use a bit stream to handle the output + BitstreamOut data = { dest , 0, 0}; + int sample_counter = 0; + uint8_t sample = 0; + //If we want to do averaging + uint32_t sample_sum =0 ; + uint32_t sample_total_numbers =0 ; + uint32_t sample_total_saved =0 ; + + while(!BUTTON_PRESS()) { + WDT_HIT(); + if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) { + AT91C_BASE_SSC->SSC_THR = 0x43; + LED_D_ON(); + } + if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) { + sample = (uint8_t)AT91C_BASE_SSC->SSC_RHR; + LED_D_OFF(); + if (trigger_threshold > 0 && sample < trigger_threshold) + continue; + + trigger_threshold = 0; + sample_total_numbers++; + + if(averaging) + { + sample_sum += sample; + } + //Check decimation + if(decimation > 1) + { + sample_counter++; + if(sample_counter < decimation) continue; + sample_counter = 0; + } + //Averaging + if(averaging && decimation > 1) { + sample = sample_sum / decimation; + sample_sum =0; + } + //Store the sample + sample_total_saved ++; + if(bits_per_sample == 8){ + dest[sample_total_saved-1] = sample; + data.numbits = sample_total_saved << 3;//Get the return value correct + if(sample_total_saved >= bufsize) break; + } + else{ + pushBit(&data, sample & 0x80); + if(bits_per_sample > 1) pushBit(&data, sample & 0x40); + if(bits_per_sample > 2) pushBit(&data, sample & 0x20); + if(bits_per_sample > 3) pushBit(&data, sample & 0x10); + if(bits_per_sample > 4) pushBit(&data, sample & 0x08); + if(bits_per_sample > 5) pushBit(&data, sample & 0x04); + if(bits_per_sample > 6) pushBit(&data, sample & 0x02); + //Not needed, 8bps is covered above + //if(bits_per_sample > 7) pushBit(&data, sample & 0x01); + if((data.numbits >> 3) +1 >= bufsize) break; + } + } + } + + if(!silent) + { + Dbprintf("Done, saved %d out of %d seen samples at %d bits/sample",sample_total_saved, sample_total_numbers,bits_per_sample); + Dbprintf("buffer samples: %02x %02x %02x %02x %02x %02x %02x %02x ...", + dest[0], dest[1], dest[2], dest[3], dest[4], dest[5], dest[6], dest[7]); + } + return data.numbits; +} +/** + * @brief Does sample acquisition, ignoring the config values set in the sample_config. + * This method is typically used by tag-specific readers who just wants to read the samples + * the normal way + * @param trigger_threshold + * @param silent + * @return number of bits sampled + */ +uint32_t DoAcquisition_default(int trigger_threshold, bool silent) +{ + return DoAcquisition(1,8,0,trigger_threshold,silent); +} +uint32_t DoAcquisition_config( bool silent) +{ + return DoAcquisition(config.decimation + ,config.bits_per_sample + ,config.averaging + ,config.trigger_threshold + ,silent); +} + +uint32_t ReadLF(bool activeField) +{ + printConfig(); + LFSetupFPGAForADC(config.divisor, activeField); + // Now call the acquisition routine + return DoAcquisition_config(false); +} + +/** +* Initializes the FPGA for reader-mode (field on), and acquires the samples. +* @return number of bits sampled +**/ +uint32_t SampleLF() +{ + return ReadLF(true); +} +/** +* Initializes the FPGA for snoop-mode (field off), and acquires the samples. +* @return number of bits sampled +**/ + +uint32_t SnoopLF() +{ + return ReadLF(false); +} diff --combined client/cmddata.c index 8f73b400,8c91f0e1..0ec73cbb --- a/client/cmddata.c +++ b/client/cmddata.c @@@ -21,24 -21,31 +21,33 @@@ #include "cmdmain.h" #include "cmddata.h" #include "lfdemod.h" +#include "usb_cmd.h" + uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN]; + uint8_t g_debugMode; int DemodBufferLen; static int CmdHelp(const char *Cmd); //set the demod buffer with given array of binary (one bit per byte) //by marshmellow - void setDemodBuf(uint8_t *buff,int size) + void setDemodBuf(uint8_t *buff, size_t size, size_t startIdx) { - int i=0; - for (; i < size; ++i){ - DemodBuffer[i]=buff[i]; + size_t i = 0; + for (; i < size; i++){ + DemodBuffer[i]=buff[startIdx++]; } DemodBufferLen=size; return; } + int CmdSetDebugMode(const char *Cmd) + { + int demod=0; + sscanf(Cmd, "%i", &demod); + g_debugMode=(uint8_t)demod; + return 1; + } + //by marshmellow void printDemodBuff() { @@@ -208,7 -215,7 +217,7 @@@ void printEM410x(uint64_t id { if (id !=0){ uint64_t iii=1; - uint64_t id2lo=0; //id2hi=0, + uint64_t id2lo=0; uint32_t ii=0; uint32_t i=0; for (ii=5; ii>0;ii--){ @@@ -218,7 -225,7 +227,7 @@@ } //output em id PrintAndLog("EM TAG ID : %010llx", id); - PrintAndLog("Unique TAG ID: %010llx", id2lo); //id2hi, + PrintAndLog("Unique TAG ID: %010llx", id2lo); PrintAndLog("DEZ 8 : %08lld",id & 0xFFFFFF); PrintAndLog("DEZ 10 : %010lld",id & 0xFFFFFF); PrintAndLog("DEZ 5.5 : %05lld.%05lld",(id>>16LL) & 0xFFFF,(id & 0xFFFF)); @@@ -235,12 -242,17 +244,17 @@@ int CmdEm410xDecode(const char *Cmd) { uint64_t id=0; - // uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; - // uint32_t i=0; - // i=getFromGraphBuf(BitStream); - id = Em410xDecode(DemodBuffer,DemodBufferLen); - printEM410x(id); - if (id>0) return 1; + size_t size = DemodBufferLen, idx=0; + id = Em410xDecode(DemodBuffer, &size, &idx); + if (id>0){ + setDemodBuf(DemodBuffer, size, idx); + if (g_debugMode){ + PrintAndLog("DEBUG: Printing demod buffer:"); + printDemodBuff(); + } + printEM410x(id); + return 1; + } return 0; } @@@ -251,7 -263,7 +265,7 @@@ //prints binary found and saves in graphbuffer for further commands int Cmdaskmandemod(const char *Cmd) { - int invert=0; + int invert=0; int clk=0; uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; sscanf(Cmd, "%i %i", &clk, &invert); @@@ -261,11 -273,11 +275,11 @@@ } size_t BitLen = getFromGraphBuf(BitStream); - // PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); + if (g_debugMode==1) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen); int errCnt=0; errCnt = askmandemod(BitStream, &BitLen,&clk,&invert); if (errCnt<0||BitLen<16){ //if fatal error (or -1) - // PrintAndLog("no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk); + 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); @@@ -276,17 -288,22 +290,22 @@@ } PrintAndLog("ASK/Manchester decoded bitstream:"); // Now output the bitstream to the scrollback by line of 16 bits - setDemodBuf(BitStream,BitLen); + setDemodBuf(BitStream,BitLen,0); printDemodBuff(); uint64_t lo =0; - lo = Em410xDecode(BitStream,BitLen); + 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(); + } PrintAndLog("EM410x pattern found: "); printEM410x(lo); return 1; } - //if (BitLen>16) return 1; return 0; } @@@ -319,9 -336,14 +338,14 @@@ int Cmdmandecoderaw(const char *Cmd printBitStream(BitStream, size); if (errCnt==0){ uint64_t id = 0; - id = Em410xDecode(BitStream, size); - if (id>0) setDemodBuf(BitStream, size); - printEM410x(id); + size_t idx=0; + id = Em410xDecode(BitStream, &size, &idx); + if (id>0){ + //need to adjust to set bitstream back to manchester encoded data + //setDemodBuf(BitStream, size, idx); + + printEM410x(id); + } } return 1; } @@@ -329,7 -351,8 +353,8 @@@ //by marshmellow //biphase decode //take 01 or 10 = 0 and 11 or 00 = 1 - //takes 1 argument "offset" default = 0 if 1 it will shift the decode by one bit + //takes 2 arguments "offset" default = 0 if 1 it will shift the decode by one bit + // and "invert" default = 0 if 1 it will invert output // since it is not like manchester and doesn't have an incorrect bit pattern we // cannot determine if our decode is correct or if it should be shifted by one bit // the argument offset allows us to manually shift if the output is incorrect @@@ -341,8 -364,9 +366,9 @@@ int CmdBiphaseDecodeRaw(const char *Cmd int errCnt=0; size_t size=0; int offset=0; + int invert=0; int high=0, low=0; - sscanf(Cmd, "%i", &offset); + sscanf(Cmd, "%i %i", &offset, &invert); uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; //get graphbuffer & high and low for (;i=20){ PrintAndLog("Too many errors attempting to decode: %d",errCnt); return 0; @@@ -366,7 -390,6 +392,6 @@@ return 1; } - //by marshmellow //takes 2 arguments - clock and invert both as integers //attempts to demodulate ask only @@@ -386,14 -409,15 +411,15 @@@ int Cmdaskrawdemod(const char *Cmd errCnt = askrawdemod(BitStream, &BitLen,&clk,&invert); 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); return 0; } PrintAndLog("Using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); - //PrintAndLog("Data start pos:%d, lastBit:%d, stop pos:%d, numBits:%d",iii,lastBit,i,bitnum); - //move BitStream back to DemodBuffer - setDemodBuf(BitStream,BitLen); + + //move BitStream back to DemodBuffer + setDemodBuf(BitStream,BitLen,0); - //output + //output if (errCnt>0){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); } @@@ -513,10 -537,6 +539,6 @@@ int CmdBitstream(const char *Cmd bit ^= 1; AppendGraph(0, clock, bit); - // for (j = 0; j < (int)(clock/2); j++) - // GraphBuffer[(i * clock) + j] = bit ^ 1; - // for (j = (int)(clock/2); j < clock; j++) - // GraphBuffer[(i * clock) + j] = bit; } RepaintGraphWindow(); @@@ -540,44 -560,28 +562,65 @@@ int CmdDec(const char *Cmd RepaintGraphWindow(); return 0; } +/** + * Undecimate - I'd call it 'interpolate', but we'll save that + * name until someone does an actual interpolation command, not just + * blindly repeating samples + * @param Cmd + * @return + */ +int CmdUndec(const char *Cmd) +{ + if(param_getchar(Cmd, 0) == 'h') + { + PrintAndLog("Usage: data undec [factor]"); + PrintAndLog("This function performs un-decimation, by repeating each sample N times"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + PrintAndLog(" factor The number of times to repeat each sample.[default:2]"); + PrintAndLog("Example: 'data undec 3'"); + return 0; + } + + uint8_t factor = param_get8ex(Cmd, 0,2, 10); + //We have memory, don't we? + int swap[MAX_GRAPH_TRACE_LEN] = { 0 }; + uint32_t g_index = 0 ,s_index = 0; + while(g_index < GraphTraceLen && s_index < MAX_GRAPH_TRACE_LEN) + { + int count = 0; + for(count = 0; count < factor && s_index+count < MAX_GRAPH_TRACE_LEN; count ++) + swap[s_index+count] = GraphBuffer[g_index]; + s_index+=count; + } + + memcpy(GraphBuffer,swap, s_index * sizeof(int)); + GraphTraceLen = s_index; + RepaintGraphWindow(); + return 0; +} + //by marshmellow + //shift graph zero up or down based on input + or - + int CmdGraphShiftZero(const char *Cmd) + { + + int shift=0; + //set options from parameters entered with the command + sscanf(Cmd, "%i", &shift); + int shiftedVal=0; + for(int i = 0; i127) + shiftedVal=127; + else if (shiftedVal<-127) + shiftedVal=-127; + GraphBuffer[i]= shiftedVal; + } + CmdNorm(""); + return 0; + } + /* Print our clock rate */ // uses data from graphbuffer int CmdDetectClockRate(const char *Cmd) @@@ -596,27 -600,44 +639,44 @@@ int CmdFSKrawdemod(const char *Cmd { //raw fsk demod no manchester decoding no start bit finding just get binary from wave //set defaults - int rfLen = 50; + int rfLen = 0; int invert=0; - int fchigh=10; - int fclow=8; + int fchigh=0; + int fclow=0; //set options from parameters entered with the command sscanf(Cmd, "%i %i %i %i", &rfLen, &invert, &fchigh, &fclow); if (strlen(Cmd)>0 && strlen(Cmd)<=2) { - //rfLen=param_get8(Cmd, 0); //if rfLen option only is used if (rfLen==1){ invert=1; //if invert option only is used - rfLen = 50; - } else if(rfLen==0) rfLen=50; + rfLen = 0; + } } - PrintAndLog("Args invert: %d - Clock:%d - fchigh:%d - fclow: %d",invert,rfLen,fchigh, fclow); + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + //get field clock lengths + uint16_t fcs=0; + if (fchigh==0 || fclow == 0){ + fcs=countFC(BitStream, BitLen); + if (fcs==0){ + fchigh=10; + fclow=8; + }else{ + fchigh = (fcs >> 8) & 0xFF; + fclow = fcs & 0xFF; + } + } + //get bit clock length + if (rfLen==0){ + 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); 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); + 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 @@@ -638,20 -659,32 +698,32 @@@ int CmdFSKdemodHID(const char *Cmd uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); //get binary from fsk wave - size_t size = HIDdemodFSK(BitStream,BitLen,&hi2,&hi,&lo); - if (size<0){ - PrintAndLog("Error demoding fsk"); + int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + if (idx<0){ + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } + return 0; + } + if (hi2==0 && hi==0 && lo==0) { + if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); return 0; } - if (hi2==0 && hi==0 && lo==0) return 0; if (hi2 != 0){ //extra large HID tags PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d)", (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - setDemodBuf(BitStream,BitLen); - return 1; } else { //standard HID tags <38 bits - //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd uint8_t fmtLen = 0; uint32_t fc = 0; uint32_t cardnum = 0; @@@ -691,12 -724,61 +763,61 @@@ PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %dbit - FC: %d - Card: %d", (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF, (unsigned int) fmtLen, (unsigned int) fc, (unsigned int) cardnum); - setDemodBuf(BitStream,BitLen); - return 1; } - return 0; + setDemodBuf(BitStream,BitLen,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } + return 1; } + //by marshmellow + //Paradox Prox demod - FSK RF/50 with preamble of 00001111 (then manchester encoded) + //print full Paradox Prox ID and some bit format details if found + int CmdFSKdemodParadox(const char *Cmd) + { + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint32_t hi2=0, hi=0, lo=0; + + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t BitLen = getFromGraphBuf(BitStream); + //get binary from fsk wave + int idx = ParadoxdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo); + if (idx<0){ + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: Error demoding fsk"); + } else if (idx == -3) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Error in Manchester data"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } + return 0; + } + if (hi2==0 && hi==0 && lo==0){ + if (g_debugMode) PrintAndLog("DEBUG: Error - no value found"); + return 0; + } + 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 ); + setDemodBuf(BitStream,BitLen,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, len: %d, Printing Demod Buffer:", idx, BitLen); + printDemodBuff(); + } + return 1; + } + + //by marshmellow //IO-Prox demod - FSK RF/64 with preamble of 000000001 //print ioprox ID and some format details @@@ -705,21 -787,39 +826,39 @@@ int CmdFSKdemodIO(const char *Cmd //raw fsk demod no manchester decoding no start bit finding just get binary from wave //set defaults int idx=0; - //something in graphbuffer - if (GraphTraceLen < 65) return 0; + //something in graphbuffer? + if (GraphTraceLen < 65) { + if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); + return 0; + } uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; size_t BitLen = getFromGraphBuf(BitStream); + //get binary from fsk wave - // PrintAndLog("DEBUG: got buff"); idx = IOdemodFSK(BitStream,BitLen); if (idx<0){ - //PrintAndLog("Error demoding fsk"); + if (g_debugMode){ + if (idx==-1){ + PrintAndLog("DEBUG: Just Noise Detected"); + } else if (idx == -2) { + PrintAndLog("DEBUG: not enough samples"); + } else if (idx == -3) { + PrintAndLog("DEBUG: error during fskdemod"); + } else if (idx == -4) { + PrintAndLog("DEBUG: Preamble not found"); + } else if (idx == -5) { + PrintAndLog("DEBUG: Separator bits not found"); + } else { + PrintAndLog("DEBUG: Error demoding fsk %d", idx); + } + } return 0; } - // PrintAndLog("DEBUG: Got IOdemodFSK"); if (idx==0){ - //PrintAndLog("IO Prox Data not found - FSK Data:"); - //if (BitLen > 92) printBitStream(BitStream,92); + if (g_debugMode==1){ + PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); + if (BitLen > 92) printBitStream(BitStream,92); + } return 0; } //Index map @@@ -731,7 -831,10 +870,10 @@@ // //XSF(version)facility:codeone+codetwo (raw) //Handle the data - if (idx+64>BitLen) return 0; + if (idx+64>BitLen) { + if (g_debugMode==1) PrintAndLog("not enough bits found - bitlen: %d",BitLen); + return 0; + } PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]); PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]); PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]); @@@ -746,13 -849,241 +888,241 @@@ uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x)",version,facilitycode,number,code,code2); - int i; - for (i=0;i<64;++i) - DemodBuffer[i]=BitStream[idx++]; + setDemodBuf(BitStream,64,idx); + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); + printDemodBuff(); + } + return 1; + } + + + //by marshmellow + //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream) + //print full AWID Prox ID and some bit format details if found + int CmdFSKdemodAWID(const char *Cmd) + { + + //int verbose=1; + //sscanf(Cmd, "%i", &verbose); + + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + //get binary from fsk wave + int idx = AWIDdemodFSK(BitStream, &size); + if (idx<=0){ + if (g_debugMode==1){ + if (idx == -1) + PrintAndLog("DEBUG: Error - not enough samples"); + else if (idx == -2) + PrintAndLog("DEBUG: Error - only noise found"); + else if (idx == -3) + PrintAndLog("DEBUG: Error - problem during FSK demod"); + // else if (idx == -3) + // PrintAndLog("Error: thought we had a tag but the parity failed"); + else if (idx == -4) + PrintAndLog("DEBUG: Error - AWID preamble not found"); + else if (idx == -5) + PrintAndLog("DEBUG: Error - Size not correct: %d", size); + else + PrintAndLog("DEBUG: Error %d",idx); + } + return 0; + } - DemodBufferLen=64; + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96 + // ----------------------------------------------------------------------------- + // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1 + // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96 + // |---26 bit---| |-----117----||-------------142-------------| + // b = format bit len, o = odd parity of last 3 bits + // f = facility code, c = card number + // w = wiegand parity + // (26 bit format shown) + + //get raw ID before removing parities + 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); + setDemodBuf(BitStream,96,idx); + + size = removeParity(BitStream, idx+8, 4, 1, 88); + if (size != 66){ + if (g_debugMode==1) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format"); + return 0; + } + // ok valid card found! + + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456 + // ----------------------------------------------------------------------------- + // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 + // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + // |26 bit| |-117--| |-----142------| + // b = format bit len, o = odd parity of last 3 bits + // f = facility code, c = card number + // w = wiegand parity + // (26 bit format shown) + + uint32_t fc = 0; + uint32_t cardnum = 0; + uint32_t code1 = 0; + uint32_t code2 = 0; + uint8_t fmtLen = bytebits_to_byte(BitStream,8); + if (fmtLen==26){ + 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); + } 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); + } 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); + } + } + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96); + printDemodBuff(); + } + //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands return 1; } + + //by marshmellow + //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream) + //print full Farpointe Data/Pyramid Prox ID and some bit format details if found + int CmdFSKdemodPyramid(const char *Cmd) + { + //raw fsk demod no manchester decoding no start bit finding just get binary from wave + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + //get binary from fsk wave + int idx = PyramiddemodFSK(BitStream, &size); + if (idx < 0){ + if (g_debugMode==1){ + if (idx == -5) + PrintAndLog("DEBUG: Error - not enough samples"); + else if (idx == -1) + PrintAndLog("DEBUG: Error - only noise found"); + else if (idx == -2) + PrintAndLog("DEBUG: Error - problem during FSK demod"); + else if (idx == -3) + PrintAndLog("DEBUG: Error - Size not correct: %d", size); + else if (idx == -4) + PrintAndLog("DEBUG: Error - Pyramid preamble not found"); + else + PrintAndLog("DEBUG: Error - idx: %d",idx); + } + return 0; + } + // Index map + // 0 10 20 30 40 50 60 + // | | | | | | | + // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 + // ----------------------------------------------------------------------------- + // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 + // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o + + // 64 70 80 90 100 110 120 + // | | | | | | | + // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 + // ----------------------------------------------------------------------------- + // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0 + // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o + // |---115---||---------71---------| + // s = format start bit, o = odd parity of last 7 bits + // f = facility code, c = card number + // w = wiegand parity, x = extra space for other formats + // p = unknown checksum + // (26 bit format shown) + + //get raw ID before removing parities + uint32_t rawLo = bytebits_to_byte(BitStream+idx+96,32); + uint32_t rawHi = bytebits_to_byte(BitStream+idx+64,32); + uint32_t rawHi2 = bytebits_to_byte(BitStream+idx+32,32); + uint32_t rawHi3 = bytebits_to_byte(BitStream+idx,32); + setDemodBuf(BitStream,128,idx); + + size = removeParity(BitStream, idx+8, 8, 1, 120); + if (size != 105){ + if (g_debugMode==1) PrintAndLog("DEBUG: Error at parity check-tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size, idx, rawHi3); + return 0; + } + + // ok valid card found! + + // Index map + // 0 10 20 30 40 50 60 70 + // | | | | | | | | + // 01234567890123456789012345678901234567890123456789012345678901234567890 + // ----------------------------------------------------------------------- + // 00000000000000000000000000000000000000000000000000000000000000000000000 + // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + + // 71 80 90 100 + // | | | | + // 1 2 34567890 1234567890123456 7 8901234 + // --------------------------------------- + // 1 1 01110011 0000000001000110 0 1001010 + // s w ffffffff cccccccccccccccc w ppppppp + // |--115-| |------71------| + // s = format start bit, o = odd parity of last 7 bits + // f = facility code, c = card number + // w = wiegand parity, x = extra space for other formats + // p = unknown checksum + // (26 bit format shown) + + //find start bit to get fmtLen + int j; + for (j=0; j32){ + //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); + } 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); + } + } + if (g_debugMode){ + PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, 128); + printDemodBuff(); + } + return 1; + } + int CmdFSKdemod(const char *Cmd) //old CmdFSKdemod needs updating { static const int LowTone[] = { @@@ -839,8 -1170,7 +1209,7 @@@ PrintAndLog("actual data bits start at sample %d", maxPos); PrintAndLog("length %d/%d", highLen, lowLen); - uint8_t bits[46]; - bits[sizeof(bits)-1] = '\0'; + uint8_t bits[46] = {0x00}; // find bit pairs and manchester decode them for (i = 0; i < arraylen(bits) - 1; ++i) { @@@ -872,13 -1202,44 +1241,44 @@@ return 0; } + //by marshmellow + //attempt to detect the field clock and bit clock for FSK + int CmdFSKfcDetect(const char *Cmd) + { + uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; + size_t size = getFromGraphBuf(BitStream); + + uint16_t ans = countFC(BitStream, size); + if (ans==0) { + if (g_debugMode) PrintAndLog("DEBUG: No data found"); + return 0; + } + uint8_t fc1, fc2; + fc1 = (ans >> 8) & 0xFF; + fc2 = ans & 0xFF; + + uint8_t rf1 = detectFSKClk(BitStream, size, fc1, fc2); + if (rf1==0) { + if (g_debugMode) PrintAndLog("DEBUG: Clock detect error"); + return 0; + } + PrintAndLog("Detected Field Clocks: FC/%d, FC/%d - Bit Clock: RF/%d", fc1, fc2, rf1); + return 1; + } + + //by marshmellow + //attempt to detect the bit clock for PSK or NRZ modulations int CmdDetectNRZpskClockRate(const char *Cmd) { GetNRZpskClock("",0,0); return 0; } - int PSKnrzDemod(const char *Cmd){ + //by marshmellow + //attempt to psk1 or nrz demod graph buffer + //NOTE CURRENTLY RELIES ON PEAKS :( + int PSKnrzDemod(const char *Cmd, uint8_t verbose) + { int invert=0; int clk=0; sscanf(Cmd, "%i %i", &clk, &invert); @@@ -891,13 -1252,13 +1291,13 @@@ int errCnt=0; errCnt = pskNRZrawDemod(BitStream, &BitLen,&clk,&invert); if (errCnt<0|| BitLen<16){ //throw away static - allow 1 and -1 (in case of threshold command first) - //PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); + if (g_debugMode==1) PrintAndLog("no data found, clk: %d, invert: %d, numbits: %d, errCnt: %d",clk,invert,BitLen,errCnt); return -1; } - PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); + if (verbose) PrintAndLog("Tried PSK/NRZ Demod using Clock: %d - invert: %d - Bits Found: %d",clk,invert,BitLen); //prime demod buffer for output - setDemodBuf(BitStream,BitLen); + setDemodBuf(BitStream,BitLen,0); return errCnt; } // Indala 26 bit decode @@@ -905,35 -1266,30 +1305,30 @@@ // optional arguments - same as CmdpskNRZrawDemod (clock & invert) int CmdIndalaDecode(const char *Cmd) { - uint8_t verbose = 1; int ans; if (strlen(Cmd)>0){ - if (Cmd[0]=='0'){ - verbose=0; - ans = PSKnrzDemod("32"); - }else{ - ans = PSKnrzDemod(Cmd); - } + ans = PSKnrzDemod(Cmd, 0); } else{ //default to RF/32 - ans = PSKnrzDemod("32"); + ans = PSKnrzDemod("32", 0); } if (ans < 0){ - if (verbose) + if (g_debugMode==1) PrintAndLog("Error1: %d",ans); return 0; } uint8_t invert=0; ans = indala26decode(DemodBuffer,(size_t *) &DemodBufferLen, &invert); if (ans < 1) { - if (verbose) + if (g_debugMode==1) PrintAndLog("Error2: %d",ans); return -1; } - char showbits[251]; + char showbits[251]={0x00}; if (invert) - if (verbose) + if (g_debugMode==1) PrintAndLog("Had to invert bits"); + //convert UID to HEX uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; int idx; @@@ -979,9 -1335,16 +1374,16 @@@ showbits[idx]='\0'; PrintAndLog("Indala UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); } + if (g_debugMode){ + PrintAndLog("DEBUG: printing demodbuffer:"); + printDemodBuff(); + } return 1; } + //by marshmellow + //attempt to clean psk wave noise after a peak + //NOTE RELIES ON PEAKS :( int CmdPskClean(const char *Cmd) { uint8_t bitStream[MAX_GRAPH_TRACE_LEN]={0}; @@@ -991,31 -1354,60 +1393,60 @@@ return 0; } - //by marshmellow - //takes 2 arguments - clock and invert both as integers - //attempts to demodulate ask only - //prints binary found and saves in graphbuffer for further commands + // by marshmellow + // takes 2 arguments - clock and invert both as integers + // attempts to demodulate psk only + // prints binary found and saves in demodbuffer for further commands int CmdpskNRZrawDemod(const char *Cmd) { - uint8_t verbose = 1; int errCnt; - if (strlen(Cmd)>0){ - if (Cmd[0]=='0') - verbose=0; - } - - errCnt = PSKnrzDemod(Cmd); + + errCnt = PSKnrzDemod(Cmd, 1); //output - if (errCnt<0) return 0; + if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } if (errCnt>0){ - if (verbose) + if (g_debugMode){ PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); - } - PrintAndLog("PSK or NRZ demoded bitstream:"); - // Now output the bitstream to the scrollback by line of 16 bits - printDemodBuff(); + PrintAndLog("PSK or NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + }else{ + PrintAndLog("PSK or NRZ demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + return 1; + } + return 0; + } - return 1; + // by marshmellow + // takes same args as cmdpsknrzrawdemod + int CmdPSK2rawDemod(const char *Cmd) + { + int errCnt=0; + errCnt=PSKnrzDemod(Cmd, 1); + if (errCnt<0){ + if (g_debugMode) PrintAndLog("Error demoding: %d",errCnt); + return 0; + } + psk1TOpsk2(DemodBuffer, DemodBufferLen); + if (errCnt>0){ + if (g_debugMode){ + PrintAndLog("# Errors during Demoding (shown as 77 in bit stream): %d",errCnt); + PrintAndLog("PSK2 demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + }else{ + PrintAndLog("PSK2 demoded bitstream:"); + // Now output the bitstream to the scrollback by line of 16 bits + printDemodBuff(); + } + return 1; } int CmdGrid(const char *Cmd) @@@ -1034,7 -1426,7 +1465,7 @@@ int CmdHexsamples(const char *Cmd int offset = 0; char string_buf[25]; char* string_ptr = string_buf; - uint8_t got[40000]; + uint8_t got[BIGBUF_SIZE]; sscanf(Cmd, "%i %i", &requested, &offset); @@@ -1043,7 -1435,7 +1474,7 @@@ requested = 8; } if (offset + requested > sizeof(got)) { - PrintAndLog("Tried to read past end of buffer, + > 40000"); + PrintAndLog("Tried to read past end of buffer, + > %d", BIGBUF_SIZE); return 0; } @@@ -1090,79 -1482,25 +1521,79 @@@ int CmdHpf(const char *Cmd RepaintGraphWindow(); return 0; } +typedef struct { + uint8_t * buffer; + uint32_t numbits; + uint32_t position; +}BitstreamOut; + +bool _headBit( BitstreamOut *stream) +{ + int bytepos = stream->position >> 3; // divide by 8 + int bitpos = (stream->position++) & 7; // mask out 00000111 + return (*(stream->buffer + bytepos) >> (7-bitpos)) & 1; +} + +uint8_t getByte(uint8_t bits_per_sample, BitstreamOut* b) +{ + int i; + uint8_t val = 0; + for(i =0 ; i < bits_per_sample; i++) + { + val |= (_headBit(b) << (7-i)); + } + return val; +} int CmdSamples(const char *Cmd) { - uint8_t got[BIGBUF_SIZE] = {0x00}; + //If we get all but the last byte in bigbuf, + // we don't have to worry about remaining trash + // in the last byte in case the bits-per-sample + // does not line up on byte boundaries - uint8_t got[40000-1]; ++ uint8_t got[BIGBUF_SIZE-1] = { 0 }; int n = strtol(Cmd, NULL, 0); if (n == 0) - n = 20000; + n = sizeof(got); if (n > sizeof(got)) n = sizeof(got); - PrintAndLog("Reading %d samples from device memory\n", n); + PrintAndLog("Reading %d bytes from device memory\n", n); GetFromBigBuf(got,n,0); - WaitForResponse(CMD_ACK,NULL); - for (int j = 0; j < n; j++) { - GraphBuffer[j] = ((int)got[j]) - 128; + PrintAndLog("Data fetched"); + UsbCommand response; + WaitForResponse(CMD_ACK, &response); + uint8_t bits_per_sample = 8; + + //Old devices without this feature would send 0 at arg[0] + if(response.arg[0] > 0) + { + sample_config *sc = (sample_config *) response.d.asBytes; + PrintAndLog("Samples @ %d bits/smpl, decimation 1:%d ", sc->bits_per_sample + , sc->decimation); + bits_per_sample = sc->bits_per_sample; } - GraphTraceLen = n; + if(bits_per_sample < 8) + { + PrintAndLog("Unpacking..."); + BitstreamOut bout = { got, bits_per_sample * n, 0}; + int j =0; + for (j = 0; j * bits_per_sample < n * 8 && j < sizeof(GraphBuffer); j++) { + uint8_t sample = getByte(bits_per_sample, &bout); + GraphBuffer[j] = ((int) sample )- 128; + } + GraphTraceLen = j; + PrintAndLog("Unpacked %d samples" , j ); + }else + { + for (int j = 0; j < n; j++) { + GraphBuffer[j] = ((int)got[j]) - 128; + } + GraphTraceLen = n; + } + RepaintGraphWindow(); return 0; } @@@ -1221,14 -1559,14 +1652,14 @@@ int CmdTuneSamples(const char *Cmd int CmdLoad(const char *Cmd) { - char filename[FILE_PATH_SIZE] = {0x00}; - int len = 0; + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; - len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; - memcpy(filename, Cmd, len); + len = strlen(Cmd); + if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + memcpy(filename, Cmd, len); - FILE *f = fopen(filename, "r"); + FILE *f = fopen(filename, "r"); if (!f) { PrintAndLog("couldn't open '%s'", filename); return 0; @@@ -1257,6 -1595,8 +1688,8 @@@ int CmdLtrim(const char *Cmd RepaintGraphWindow(); return 0; } + + // trim graph to input argument length int CmdRtrim(const char *Cmd) { int ds = atoi(Cmd); @@@ -1537,12 -1877,12 +1970,12 @@@ int CmdPlot(const char *Cmd int CmdSave(const char *Cmd) { - char filename[FILE_PATH_SIZE] = {0x00}; - int len = 0; + char filename[FILE_PATH_SIZE] = {0x00}; + int len = 0; - len = strlen(Cmd); - if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; - memcpy(filename, Cmd, len); + len = strlen(Cmd); + if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE; + memcpy(filename, Cmd, len); FILE *f = fopen(filename, "w"); @@@ -1653,19 -1993,23 +2086,23 @@@ static command_t CommandTable[] {"help", CmdHelp, 1, "This help"}, {"amp", CmdAmp, 1, "Amplify peaks"}, {"askdemod", Cmdaskdemod, 1, "<0 or 1> -- Attempt to demodulate simple ASK tags"}, - {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK/Manchester tags and output binary (args optional[clock will try Auto-detect])"}, - {"askrawdemod", Cmdaskrawdemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate ASK tags and output binary (args optional[clock will try Auto-detect])"}, + {"askmandemod", Cmdaskmandemod, 1, "[clock] [invert<0|1>] -- 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, " -- Autocorrelation over window"}, - {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] Biphase decode binary stream already in graph buffer (offset = bit to start decode from)"}, + {"biphaserawdecode",CmdBiphaseDecodeRaw,1,"[offset] [invert<0|1>] Biphase decode bin stream in demod buffer (offset = 0|1 bits to shift the decode start)"}, {"bitsamples", CmdBitsamples, 0, "Get raw samples as bitstring"}, {"bitstream", CmdBitstream, 1, "[clock rate] -- Convert waveform into a bitstream"}, {"buffclear", CmdBuffClear, 1, "Clear sample buffer and graph window"}, {"dec", CmdDec, 1, "Decimate samples"}, {"detectclock", CmdDetectClockRate, 1, "Detect ASK clock rate"}, {"fskdemod", CmdFSKdemod, 1, "Demodulate graph window as a HID FSK"}, - {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK using raw"}, - {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox FSK using raw"}, - {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to binary (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, + {"fskawiddemod", CmdFSKdemodAWID, 1, "Demodulate graph window as an AWID FSK tag using raw"}, + {"fskfcdetect", CmdFSKfcDetect, 1, "Try to detect the Field Clock of an FSK wave"}, + {"fskhiddemod", CmdFSKdemodHID, 1, "Demodulate graph window as a HID FSK tag using raw"}, + {"fskiodemod", CmdFSKdemodIO, 1, "Demodulate graph window as an IO Prox tag FSK using raw"}, + {"fskpyramiddemod",CmdFSKdemodPyramid,1, "Demodulate graph window as a Pyramid FSK tag using raw"}, + {"fskparadoxdemod",CmdFSKdemodParadox,1, "Demodulate graph window as a Paradox FSK tag using raw"}, + {"fskrawdemod", CmdFSKrawdemod, 1, "[clock rate] [invert] [rchigh] [rclow] Demodulate graph window from FSK to bin (clock = 50)(invert = 1|0)(rchigh = 10)(rclow=8)"}, {"grid", CmdGrid, 1, " -- overlay grid on graph window, use zero value to turn off either"}, {"hexsamples", CmdHexsamples, 0, " [] -- Dump big buffer as hex bytes"}, {"hide", CmdHide, 1, "Hide graph window"}, @@@ -1680,16 -2024,18 +2117,19 @@@ {"plot", CmdPlot, 1, "Show graph window (hit 'h' in window for keystroke help)"}, {"pskclean", CmdPskClean, 1, "Attempt to clean psk wave"}, {"pskdetectclock",CmdDetectNRZpskClockRate, 1, "Detect ASK, PSK, or NRZ clock rate"}, - {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk indala tags and output ID binary & hex (args optional[clock will try Auto-detect])"}, - {"psknrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk or nrz tags and output binary (args optional[clock will try Auto-detect])"}, + {"pskindalademod",CmdIndalaDecode, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 indala tags and output ID binary & hex (args optional)"}, + {"psk1nrzrawdemod",CmdpskNRZrawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk1 or nrz tags and output binary (args optional)"}, + {"psk2rawdemod", CmdPSK2rawDemod, 1, "[clock] [invert<0|1>] -- Attempt to demodulate psk2 tags and output binary (args optional)"}, {"samples", CmdSamples, 0, "[512 - 40000] -- Get raw samples for graph window"}, {"save", CmdSave, 1, " -- Save trace (from graph window)"}, {"scale", CmdScale, 1, " -- Set cursor display scale"}, + {"setdebugmode", CmdSetDebugMode, 1, "<0|1> -- Turn on or off Debugging Mode for demods"}, + {"shiftgraphzero",CmdGraphShiftZero, 1, " -- Shift 0 for Graphed wave + or - shift value"}, {"threshold", CmdThreshold, 1, " -- Maximize/minimize every value in the graph window depending on threshold"}, {"dirthreshold", CmdDirectionalThreshold, 1, " -- Max rising higher up-thres/ Min falling lower down-thres, keep rest as prev."}, {"tune", CmdTuneSamples, 0, "Get hw tune samples for graph window"}, - {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, + {"undec", CmdUndec, 1, "Un-decimate samples by 2"}, + {"zerocrossings", CmdZerocrossings, 1, "Count time between zero-crossings"}, {NULL, NULL, 0, NULL} }; diff --combined client/cmdlf.c index 09d93002,07a8750f..f56aa1b7 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@@ -356,155 -356,24 +356,155 @@@ int CmdIndalaClone(const char *Cmd return 0; } +int usage_lf_read() +{ + PrintAndLog("Usage: lf read"); + PrintAndLog("Options: "); + PrintAndLog(" h This help"); + 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) + { + PrintAndLog("working %c", param_getchar(Cmd, cmdp)); + 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; + if(param_getchar(Cmd, cmdp) == 'h') + { + return usage_lf_read(); + } + //And ship it to device + UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K}; + SendCommand(&c); + WaitForResponse(CMD_ACK,NULL); + 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) @@@ -519,7 -388,7 +519,7 @@@ } } } - + //appears to attempt to simulate manchester int CmdLFSim(const char *Cmd) { int i,j; @@@ -581,6 -450,33 +581,6 @@@ int CmdLFSimManchester(const char *Cmd 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 == '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("usage 1: snoop"); - PrintAndLog(" 2: snoop [trigger threshold]"); - PrintAndLog(" 3: snoop [trigger threshold]"); - PrintAndLog(""); - PrintAndLog("Sample: lf snoop l 200"); - PrintAndLog(" : lf snoop 95 200"); - return 0; - } - - SendCommand(&c); - WaitForResponse(CMD_ACK,NULL); - return 0; -} int CmdVchDemod(const char *Cmd) { @@@ -682,26 -578,41 +682,41 @@@ int CmdLFfind(const char *Cmd } PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag"); - PrintAndLog("Checking for known tags:"); + PrintAndLog("\nChecking for known tags:\n"); ans=CmdFSKdemodIO(""); if (ans>0) { - PrintAndLog("Valid IO Prox ID Found!"); + 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("Valid HID Prox ID Found!"); + PrintAndLog("\nValid HID Prox ID Found!"); return 1; } //add psk and indala - ans=CmdIndalaDecode("0"); + ans=CmdIndalaDecode(""); if (ans>0) { - PrintAndLog("Valid Indala ID Found!"); + PrintAndLog("\nValid Indala ID Found!"); return 1; } ans=Cmdaskmandemod(""); if (ans>0) { - PrintAndLog("Valid EM410x ID Found!"); + PrintAndLog("\nValid EM410x ID Found!"); return 1; } PrintAndLog("No Known Tags Found!\n"); @@@ -713,13 -624,12 +728,13 @@@ 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... }"}, + {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"}, {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, {"io", CmdLFIO, 1, "{ ioProx tags... }"}, {"indalademod", CmdIndalaDemod, 1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"}, {"indalaclone", CmdIndalaClone, 0, " ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"}, - {"read", CmdLFRead, 0, "['h' or ] -- Read 125/134 kHz LF ID-only tag (option 'h' for 134, alternatively: f=12MHz/(divisor+1))"}, + {"read", CmdLFRead, 0, "Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"}, {"search", CmdLFfind, 1, "Read and Search for valid known tag (in offline mode it you can load first then search)"}, {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"}, {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"}, diff --combined client/graph.h index 2c448161,fe35d4f1..9817d776 --- a/client/graph.h +++ b/client/graph.h @@@ -20,9 -20,10 +20,12 @@@ int GetClock(const char *str, int peak int GetNRZpskClock(const char *str, int peak, int verbose); void setGraphBuf(uint8_t *buff, size_t size); + bool HasGraphData(); + void DetectHighLowInGraph(int *high, int *low, bool addFuzz); + -#define MAX_GRAPH_TRACE_LEN (1024*128) +// Max graph trace len: 40000 (bigbuf) * 8 (at 1 bit per sample) +#define MAX_GRAPH_TRACE_LEN (40000 * 8 ) ++ extern int GraphBuffer[MAX_GRAPH_TRACE_LEN]; extern int GraphTraceLen; - #endif