X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9332b857ffeee343334064d3ca53048f59c55e50..a28d34f407dc172f1e5b0dc257e8fc89e67706f0:/armsrc/lfops.c diff --git a/armsrc/lfops.c b/armsrc/lfops.c index 22173059..8b7e98fc 100644 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@ -17,36 +17,37 @@ #include "lfdemod.h" #include "lfsampling.h" #include "protocols.h" -#include "usb_cdc.h" //test +#include "usb_cdc.h" // for usb_poll_validate_length /** * Function to do a modulation and then get samples. * @param delay_off - * @param period_0 - * @param period_1 + * @param periods 0xFFFF0000 is period_0, 0x0000FFFF is period_1 + * @param useHighFreg * @param command */ -void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t period_0, uint32_t period_1, uint8_t *command) +void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t periods, uint32_t useHighFreq, uint8_t *command) { + /* Make sure the tag is reset */ + FpgaDownloadAndGo(FPGA_BITSTREAM_LF); + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); + SpinDelay(200); - int divisor_used = 95; // 125 KHz - // see if 'h' was specified - - if (command[strlen((char *) command) - 1] == 'h') - divisor_used = 88; // 134.8 KHz - + uint16_t period_0 = periods >> 16; + uint16_t period_1 = periods & 0xFFFF; + + // 95 == 125 KHz 88 == 124.8 KHz + int divisor_used = (useHighFreq) ? 88 : 95; sample_config sc = { 0,0,1, divisor_used, 0}; setSamplingConfig(&sc); - /* Make sure the tag is reset */ - FpgaDownloadAndGo(FPGA_BITSTREAM_LF); - FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - SpinDelay(2500); + //clear read buffer + BigBuf_Clear_keep_EM(); LFSetupFPGAForADC(sc.divisor, 1); // And a little more time for the tag to fully power up - SpinDelay(2000); + SpinDelay(50); // now modulate the reader field while(*command != '\0' && *command != ' ') { @@ -66,7 +67,6 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t period_0, uint LED_D_OFF(); SpinDelayUs(delay_off); FpgaSendCommand(FPGA_CMD_SET_DIVISOR, sc.divisor); - FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD); // now do the read @@ -268,7 +268,7 @@ void AcquireTiType(void) AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(32) | AT91C_SSC_MSBF; AT91C_BASE_SSC->SSC_TCMR = 0; AT91C_BASE_SSC->SSC_TFMR = 0; - + // iceman, FpgaSetupSsc() ?? the code above? can it be replaced? LED_D_ON(); // modulate antenna @@ -378,7 +378,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc) AcquireTiType(); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); - DbpString("Now use 'lf ti read' to check"); + DbpString("Now use `lf ti read` to check"); } void SimulateTagLowFrequency(int period, int gap, int ledcontrol) @@ -400,7 +400,7 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol) for(;;) { //wait until SSC_CLK goes HIGH while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) { - if(BUTTON_PRESS() || !usb_poll_validate_length() ) { + if(BUTTON_PRESS() || usb_poll_validate_length() ) { DbpString("Stopped"); return; } @@ -417,7 +417,7 @@ void SimulateTagLowFrequency(int period, int gap, int ledcontrol) //wait until SSC_CLK goes LOW while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) { - if( BUTTON_PRESS() || !usb_poll_validate_length() ) { + if( BUTTON_PRESS() || usb_poll_validate_length() ) { DbpString("Stopped"); return; } @@ -626,7 +626,19 @@ static void biphaseSimBit(uint8_t c, int *n, uint8_t clock, uint8_t *phase) memset(dest+(*n), c ^ *phase, clock); *phase ^= 1; } + *n += clock; +} +static void stAskSimBit(int *n, uint8_t clock) { + uint8_t *dest = BigBuf_get_addr(); + uint8_t halfClk = clock/2; + //ST = .5 high .5 low 1.5 high .5 low 1 high + memset(dest+(*n), 1, halfClk); + memset(dest+(*n) + halfClk, 0, halfClk); + memset(dest+(*n) + clock, 1, clock + halfClk); + memset(dest+(*n) + clock*2 + halfClk, 0, halfClk); + memset(dest+(*n) + clock*3, 1, clock); + *n += clock*4; } // args clock, ask/man or askraw, invert, transmission separator @@ -644,7 +656,7 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream) for (i=0; i>1) & 0xFFFF ); - }else { //standard HID tags 44/96 bits + } else { //standard HID tags 44/96 bits uint8_t bitlen = 0; uint32_t fc = 0; uint32_t cardnum = 0; @@ -815,6 +832,8 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol) uint8_t *dest = BigBuf_get_addr(); size_t size; int idx=0; + //clear read buffer + BigBuf_Clear_keep_EM(); // Configure to go in 125Khz listen mode LFSetupFPGAForADC(95, true); @@ -849,7 +868,6 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol) size = removeParity(dest, idx+8, 4, 1, 88); if (size != 66) continue; - // ok valid card found! // Index map // 0 10 20 30 40 50 60 @@ -859,37 +877,51 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol) // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx // |26 bit| |-117--| |-----142------| + // + // 00110010 0 0000011111010000000000000001000100101000100001111 0 00000000 + // bbbbbbbb w ffffffffffffffffccccccccccccccccccccccccccccccccc w xxxxxxxx + // |50 bit| |----4000------||-----------2248975-------------| + // // 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(dest,8); - if (fmtLen==26){ - fc = bytebits_to_byte(dest+9, 8); - cardnum = bytebits_to_byte(dest+17, 16); - code1 = bytebits_to_byte(dest+8,fmtLen); - Dbprintf("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); - } else { - cardnum = bytebits_to_byte(dest+8+(fmtLen-17), 16); - if (fmtLen>32){ - code1 = bytebits_to_byte(dest+8,fmtLen-32); - code2 = bytebits_to_byte(dest+8+(fmtLen-32),32); - Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); - } else{ - code1 = bytebits_to_byte(dest+8,fmtLen); - Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); - } + switch(fmtLen) { + case 26: + fc = bytebits_to_byte(dest + 9, 8); + cardnum = bytebits_to_byte(dest + 17, 16); + code1 = bytebits_to_byte(dest + 8,fmtLen); + Dbprintf("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo); + break; + case 50: + fc = bytebits_to_byte(dest + 9, 16); + cardnum = bytebits_to_byte(dest + 25, 32); + code1 = bytebits_to_byte(dest + 8, (fmtLen-32) ); + code2 = bytebits_to_byte(dest + 8 + (fmtLen-32), 32); + Dbprintf("AWID Found - BitLength: %d, FC: %d, Card: %u - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, code2, rawHi2, rawHi, rawLo); + break; + default: + if (fmtLen > 32 ) { + cardnum = bytebits_to_byte(dest+8+(fmtLen-17), 16); + code1 = bytebits_to_byte(dest+8,fmtLen-32); + code2 = bytebits_to_byte(dest+8+(fmtLen-32),32); + Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo); + } else { + cardnum = bytebits_to_byte(dest+8+(fmtLen-17), 16); + code1 = bytebits_to_byte(dest+8,fmtLen); + Dbprintf("AWID Found - BitLength: %d -unknown BitLength- (%u) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo); + } + break; } if (findone){ if (ledcontrol) LED_A_OFF(); return; } - // reset idx = 0; WDT_HIT(); } @@ -905,6 +937,8 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol) int clk=0, invert=0, errCnt=0, maxErr=20; uint32_t hi=0; uint64_t lo=0; + //clear read buffer + BigBuf_Clear_keep_EM(); // Configure to go in 125Khz listen mode LFSetupFPGAForADC(95, true); @@ -966,6 +1000,10 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) uint16_t number=0; uint8_t crc = 0; uint16_t calccrc = 0; + + //clear read buffer + BigBuf_Clear_keep_EM(); + // Configure to go in 125Khz listen mode LFSetupFPGAForADC(95, true); @@ -1095,7 +1133,7 @@ void T55xxWriteBit(int bit) { void T55xxResetRead(void) { LED_A_ON(); //clear buffer now so it does not interfere with timing later - BigBuf_Clear_ext(false); + BigBuf_Clear_keep_EM(); // Set up FPGA, 125kHz LFSetupFPGAForADC(95, true); @@ -1246,7 +1284,6 @@ void T55xxWakeUp(uint32_t Pwd){ } /*-------------- Cloning routines -----------*/ - void WriteT55xx(uint32_t *blockdata, uint8_t startblock, uint8_t numblocks) { // write last block first and config block last (if included) for (uint8_t i = numblocks+startblock; i > startblock; i--) @@ -1260,7 +1297,7 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { if (longFMT){ // Ensure no more than 84 bits supplied - if (hi2>0xFFFFF) { + if (hi2 > 0xFFFFF) { DbpString("Tags can only have 84 bits."); return; } @@ -1276,7 +1313,7 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { data[6] = manchesterEncode2Bytes(lo & 0xFFFF); } else { // Ensure no more than 44 bits supplied - if (hi>0xFFF) { + if (hi > 0xFFF) { DbpString("Tags can only have 44 bits."); return; } @@ -1306,15 +1343,14 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { void CopyIOtoT55x7(uint32_t hi, uint32_t lo) { uint32_t data[] = {T55x7_BITRATE_RF_64 | T55x7_MODULATION_FSK2a | (2 << T55x7_MAXBLOCK_SHIFT), hi, lo}; //TODO add selection of chip for Q5 or T55x7 - // data[0] = (((64-2)/2)<>32), id & 0xFFFFFFFF}; + uint32_t data[] = {0, (uint32_t)(id>>32), (uint32_t)(id & 0xFFFFFFFF)}; clock = (card & 0xFF00) >> 8; clock = (clock == 0) ? 64 : clock; @@ -1435,7 +1472,7 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo) { clock = (clock-2)>>1; //n = (RF-2)/2 data[0] = (clock << T5555_BITRATE_SHIFT) | T5555_MODULATION_MANCHESTER | (2 << T5555_MAXBLOCK_SHIFT); } - + WriteT55xx(data, 0, 3); LED_D_OFF(); @@ -1602,7 +1639,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { uint16_t bufsize = BigBuf_max_traceLen(); uint32_t i = 0; - //clear buffer now so it does not interfere with timing later + // Clear destination buffer before sending the command BigBuf_Clear_ext(false); //If password mode do login