X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/779d9a0e90a20392785adbaa4974cafaa27005a8..2de26056ce3650d8ae48f30bf657e27b3669a0a3:/armsrc/lfops.c diff --git a/armsrc/lfops.c b/armsrc/lfops.c index c7a7a59d..ed207dbb 100644 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@ -18,6 +18,7 @@ #include "lfsampling.h" #include "protocols.h" #include "usb_cdc.h" // for usb_poll_validate_length +#include "fpgaloader.h" /** * Function to do a modulation and then get samples. @@ -33,14 +34,15 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t period_0, uint // use lf config settings sample_config *sc = getSamplingConfig(); - // clear read buffer - BigBuf_Clear_keep_EM(); - /* Make sure the tag is reset */ + // Make sure the tag is reset FpgaDownloadAndGo(FPGA_BITSTREAM_LF); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); WaitMS(2500); + // clear read buffer (after fpga bitstream loaded...) + BigBuf_Clear_keep_EM(); + // power on LFSetupFPGAForADC(sc->divisor, 1); @@ -567,7 +569,7 @@ static void fcAll(uint8_t fc, int *n, uint8_t clock, uint16_t *modCnt) uint8_t wavesPerClock = clock/fc; uint8_t mod = clock % fc; //modifier uint8_t modAdj = fc/mod; //how often to apply modifier - bool modAdjOk = !(fc % mod); //if (fc % mod==0) modAdjOk=TRUE; + bool modAdjOk = !(fc % mod); //if (fc % mod==0) modAdjOk=true; // loop through clock - step field clock for (uint8_t idx=0; idx < wavesPerClock; idx++){ // put 1/2 FC length 1's and 1/2 0's per field clock wave (to create the wave) @@ -592,7 +594,7 @@ static void fcAll(uint8_t fc, int *n, uint8_t clock, uint16_t *modCnt) // prepare a waveform pattern in the buffer based on the ID given then // simulate a HID tag until the button is pressed -void CmdHIDsimTAG(int hi, int lo, int ledcontrol) +void CmdHIDsimTAG(int hi2, int hi, int lo, int ledcontrol) { int n=0, i=0; /* @@ -605,8 +607,8 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol) nor 1 bits, they are special patterns (a = set of 12 fc8 and b = set of 10 fc10) */ - if (hi>0xFFF) { - DbpString("Tags can only have 44 bits. - USE lf simfsk for larger tags"); + if (hi2>0x0FFFFFFF) { + DbpString("Tags can only have 44 or 84 bits. - USE lf simfsk for larger tags"); return; } // set LF so we don't kill the bigbuf we are setting with simulation data. @@ -620,13 +622,35 @@ void CmdHIDsimTAG(int hi, int lo, int ledcontrol) fc(8, &n); fc(10, &n); // logical 0 WDT_HIT(); - // manchester encode bits 43 to 32 - for (i=11; i>=0; i--) { - if ((i%4)==3) fc(0,&n); - if ((hi>>i)&1) { - fc(10, &n); fc(8, &n); // low-high transition - } else { - fc(8, &n); fc(10, &n); // high-low transition + if (hi2 > 0 || hi > 0xFFF){ + // manchester encode bits 91 to 64 (91-84 are part of the header) + for (i=27; i>=0; i--) { + if ((i%4)==3) fc(0,&n); + if ((hi2>>i)&1) { + fc(10, &n); fc(8, &n); // low-high transition + } else { + fc(8, &n); fc(10, &n); // high-low transition + } + } + WDT_HIT(); + // manchester encode bits 63 to 32 + for (i=31; i>=0; i--) { + if ((i%4)==3) fc(0,&n); + if ((hi>>i)&1) { + fc(10, &n); fc(8, &n); // low-high transition + } else { + fc(8, &n); fc(10, &n); // high-low transition + } + } + } else { + // manchester encode bits 43 to 32 + for (i=11; i>=0; i--) { + if ((i%4)==3) fc(0,&n); + if ((hi>>i)&1) { + fc(10, &n); fc(8, &n); // low-high transition + } else { + fc(8, &n); fc(10, &n); // high-low transition + } } } @@ -819,9 +843,9 @@ void CmdPSKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream) for (i=0; i0 && lo>0 && (size==96 || size==192)){ + uint8_t bitlen = 0; + uint32_t fc = 0; + uint32_t cardnum = 0; + bool decoded = false; + // go over previously decoded manchester data and decode into usable tag ID - if (hi2 != 0){ //extra large HID tags 88/192 bits - Dbprintf("TAG ID: %x%08x%08x (%d)", - (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - }else { //standard HID tags 44/96 bits - //Dbprintf("TAG ID: %x%08x (%d)",(unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); //old print cmd - uint8_t bitlen = 0; - uint32_t fc = 0; - uint32_t cardnum = 0; - if (((hi>>5)&1) == 1){//if bit 38 is set then < 37 bit format is used - uint32_t lo2=0; - lo2=(((hi & 31) << 12) | (lo>>20)); //get bits 21-37 to check for format len bit - uint8_t idx3 = 1; - while(lo2 > 1){ //find last bit set to 1 (format len bit) - lo2=lo2 >> 1; - idx3++; - } - bitlen = idx3+19; - fc =0; - cardnum=0; - if(bitlen == 26){ - cardnum = (lo>>1)&0xFFFF; - fc = (lo>>17)&0xFF; - } - if(bitlen == 37){ - cardnum = (lo>>1)&0x7FFFF; - fc = ((hi&0xF)<<12)|(lo>>20); - } - if(bitlen == 34){ - cardnum = (lo>>1)&0xFFFF; - fc= ((hi&1)<<15)|(lo>>17); - } - if(bitlen == 35){ - cardnum = (lo>>1)&0xFFFFF; - fc = ((hi&1)<<11)|(lo>>21); - } + if ((hi2 & 0x000FFFF) != 0){ //extra large HID tags 88/192 bits + uint32_t bp = hi2 & 0x000FFFFF; + bitlen = 63; + while (bp > 0) { + bp = bp >> 1; + bitlen++; } - else { //if bit 38 is not set then 37 bit format is used - bitlen= 37; - fc =0; - cardnum=0; - if(bitlen==37){ - cardnum = (lo>>1)&0x7FFFF; - fc = ((hi&0xF)<<12)|(lo>>20); - } + } else if ((hi >> 6) > 0) { + uint32_t bp = hi; + bitlen = 31; + while (bp > 0) { + bp = bp >> 1; + bitlen++; + } + } else if (((hi >> 5) & 1) == 0) { + bitlen = 37; + } else if ((hi & 0x0000001F) > 0 ) { + uint32_t bp = (hi & 0x0000001F); + bitlen = 31; + while (bp > 0) { + bp = bp >> 1; + bitlen++; + } + } else { + uint32_t bp = lo; + bitlen = 0; + while (bp > 0) { + bp = bp >> 1; + bitlen++; } - //Dbprintf("TAG ID: %x%08x (%d)", - // (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); - Dbprintf("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) bitlen, (unsigned int) fc, (unsigned int) cardnum); } + switch (bitlen){ + case 26: + cardnum = (lo>>1)&0xFFFF; + fc = (lo>>17)&0xFF; + decoded = true; + break; + case 35: + cardnum = (lo>>1)&0xFFFFF; + fc = ((hi&1)<<11)|(lo>>21); + decoded = true; + break; + } + + if (hi2 != 0) //extra large HID tags 88/192 bits + Dbprintf("TAG ID: %x%08x%08x (%d)", + (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); + else + Dbprintf("TAG ID: %x%08x (%d)", + (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); + + if (decoded) + Dbprintf("Format Len: %dbits - FC: %d - Card: %d", + (unsigned int) bitlen, (unsigned int) fc, (unsigned int) cardnum); + if (findone){ if (ledcontrol) LED_A_OFF(); + *high2 = hi2; *high = hi; *low = lo; break; @@ -1165,10 +1198,45 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) * and enlarge the gap ones. * Q5 tags seems to have issues when these values changes. */ -#define START_GAP 31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc) -#define WRITE_GAP 20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) -#define WRITE_0 18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc) -#define WRITE_1 50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) 432 for T55x7; 448 for E5550 + +/* Q5 timing datasheet: + * Type | MIN | Typical | Max | + * Start_Gap | 10*8 | ? | 50*8 | + * Write_Gap Normal mode | 8*8 | 14*8 | 20*8 | + * Write_Gap Fast Mode | 8*8 | ? | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 32*8 | + * Write_1 Normal mode | 48*8 | 56*8 | 64*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 16*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 32*8 | +*/ + +/* T5557 timing datasheet: + * Type | MIN | Typical | Max | + * Start_Gap | 10*8 | ? | 50*8 | + * Write_Gap Normal mode | 8*8 |50-150us | 30*8 | + * Write_Gap Fast Mode | 8*8 | ? | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 31*8 | + * Write_1 Normal mode | 48*8 | 54*8 | 63*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 15*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 31*8 | +*/ + +/* T5577C timing datasheet for Fixed-Bit-Length protocol (defualt): + * Type | MIN | Typical | Max | + * Start_Gap | 8*8 | 15*8 | 50*8 | + * Write_Gap Normal mode | 8*8 | 10*8 | 20*8 | + * Write_Gap Fast Mode | 8*8 | 10*8 | 20*8 | + * Write_0 Normal mode | 16*8 | 24*8 | 32*8 | + * Write_1 Normal mode | 48*8 | 56*8 | 64*8 | + * Write_0 Fast Mode | 8*8 | 12*8 | 16*8 | + * Write_1 Fast Mode | 24*8 | 28*8 | 32*8 | +*/ + +//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds) +#define START_GAP 31*8 //31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc) - T5557: 10*8 to 50*8 +#define WRITE_GAP 20*8 //20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) - T5557: 8*8 to 30*8 typ 50-150us +#define WRITE_0 18*8 //18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc) - T5557: 16*8 to 31*8 typ 24*8 +#define WRITE_1 50*8 //50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) - T5557: 48*8 to 63*8 typ 54*8 432 for T55x7; 448 for E5550 #define READ_GAP 15*8 void TurnReadLFOn(int delay) { @@ -1322,7 +1390,7 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) { T55xxWriteBit(1); T55xxWriteBit(Page); //Page 0 - if (PwdMode){ + if (PwdMode) { // Send Pwd for (i = 0x80000000; i != 0; i >>= 1) T55xxWriteBit(Pwd & i); @@ -1385,8 +1453,8 @@ void WriteT55xx(uint32_t *blockdata, uint8_t startblock, uint8_t numblocks) { } } -// Copy HID id to card and setup block 0 config -void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { +// Copy a HID-like card (e.g. HID Proximity, Paradox) to a T55x7 compatible card +void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT, uint8_t preamble) { uint32_t data[] = {0,0,0,0,0,0,0}; uint8_t last_block = 0; @@ -1398,15 +1466,15 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { } // Build the 6 data blocks for supplied 84bit ID last_block = 6; - // load preamble (1D) & long format identifier (9E manchester encoded) - data[1] = 0x1D96A900 | (manchesterEncode2Bytes((hi2 >> 16) & 0xF) & 0xFF); + // load preamble & long format identifier (9E manchester encoded) + data[1] = (preamble << 24) | 0x96A900 | (manchesterEncode2Bytes((hi2 >> 16) & 0xF) & 0xFF); // load raw id from hi2, hi, lo to data blocks (manchester encoded) data[2] = manchesterEncode2Bytes(hi2 & 0xFFFF); data[3] = manchesterEncode2Bytes(hi >> 16); data[4] = manchesterEncode2Bytes(hi & 0xFFFF); data[5] = manchesterEncode2Bytes(lo >> 16); data[6] = manchesterEncode2Bytes(lo & 0xFFFF); - } else { + } else { // Ensure no more than 44 bits supplied if (hi>0xFFF) { DbpString("Tags can only have 44 bits."); @@ -1415,7 +1483,7 @@ void CopyHIDtoT55x7(uint32_t hi2, uint32_t hi, uint32_t lo, uint8_t longFMT) { // Build the 3 data blocks for supplied 44bit ID last_block = 3; // load preamble - data[1] = 0x1D000000 | (manchesterEncode2Bytes(hi) & 0xFFFFFF); + data[1] = (preamble << 24) | (manchesterEncode2Bytes(hi) & 0xFFFFFF); data[2] = manchesterEncode2Bytes(lo >> 16); data[3] = manchesterEncode2Bytes(lo & 0xFFFF); } @@ -1581,6 +1649,7 @@ void WriteEM410x(uint32_t card, uint32_t id_hi, uint32_t id_lo) { #define FWD_CMD_WRITE 0xA #define FWD_CMD_READ 0x9 #define FWD_CMD_DISABLE 0x5 +#define FWD_CMD_PROTECT 0x3 uint8_t forwardLink_data[64]; //array of forwarded bits uint8_t * forward_ptr; //ptr for forward message preparation @@ -1750,7 +1819,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) { void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) { - bool PwdMode = (flag & 0xF); + bool PwdMode = (flag & 0x1); uint8_t Address = (flag >> 8) & 0xFF; uint8_t fwd_bit_count; @@ -1780,6 +1849,39 @@ void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) { LED_A_OFF(); cmd_send(CMD_ACK,0,0,0,0,0); } + +void EM4xProtect(uint32_t flag, uint32_t Data, uint32_t Pwd) { + + bool PwdMode = (flag & 0x1); + uint8_t fwd_bit_count; + + //clear buffer now so it does not interfere with timing later + BigBuf_Clear_ext(false); + + LED_A_ON(); + StartTicks(); + //If password mode do login + if (PwdMode) EM4xLogin(Pwd); + + forward_ptr = forwardLink_data; + fwd_bit_count = Prepare_Cmd( FWD_CMD_PROTECT ); + + //unsure if this needs the full packet config... + fwd_bit_count += Prepare_Data( Data&0xFFFF, Data>>16 ); + + SendForward(fwd_bit_count); + + //Wait for write to complete + //SpinDelay(10); + + WaitUS(6500); + //Capture response if one exists + DoPartialAcquisition(20, true, 6000, 1000); + + FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off + LED_A_OFF(); + cmd_send(CMD_ACK,0,0,0,0,0); +} /* Reading a COTAG. @@ -1817,7 +1919,7 @@ void Cotag(uint32_t arg0) { SetAdcMuxFor(GPIO_MUXSEL_LOPKD); // Now set up the SSC to get the ADC samples that are now streaming at us. - FpgaSetupSsc(); + FpgaSetupSsc(FPGA_MAJOR_MODE_LF_ADC); // start clock - 1.5ticks is 1us StartTicks();