X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9cc8a1e5882d22cfded4f0439cab99de07aa5841..48601727895467580bdb7ec23e0a095f0f4ceb07:/armsrc/lfops.c diff --git a/armsrc/lfops.c b/armsrc/lfops.c index 74f04913..a3cef485 100644 --- a/armsrc/lfops.c +++ b/armsrc/lfops.c @@ -755,22 +755,71 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol) else // 0 1 lo=(lo<<1)| 1; - numshifts ++; + numshifts++; idx += 2; } + //Dbprintf("Num shifts: %d ", numshifts); // Hopefully, we read a tag and hit upon the next frame marker if(idx + sizeof(frame_marker_mask) < size) { if ( memcmp(dest+idx, frame_marker_mask, sizeof(frame_marker_mask)) == 0) { - if (hi2 != 0){ + if (hi2 != 0){ //should be large enough for the largest HID tags 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); + else { //standard bits + //Dbprintf("TAG ID: %x%08x (%d)", + // (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF); + 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); + } + //Dbprintf("Format Len: %d bit - FC: %d - Card: %d",(unsigned int) bitlen, (unsigned int) fc, (unsigned int) cardnum); + } + 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); + } + } + //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); } } @@ -837,7 +886,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) for( idx=0; idx < size - 64; idx++) { if ( memcmp(dest + idx, mask, sizeof(mask)) ) continue; - + Dbprintf("%b",bytebits_to_byte(dest+idx,32)); Dbprintf("%d%d%d%d%d%d%d%d",dest[idx], dest[idx+1], dest[idx+2],dest[idx+3],dest[idx+4],dest[idx+5],dest[idx+6],dest[idx+7]); Dbprintf("%d%d%d%d%d%d%d%d",dest[idx+8], dest[idx+9], dest[idx+10],dest[idx+11],dest[idx+12],dest[idx+13],dest[idx+14],dest[idx+15]); Dbprintf("%d%d%d%d%d%d%d%d",dest[idx+16],dest[idx+17],dest[idx+18],dest[idx+19],dest[idx+20],dest[idx+21],dest[idx+22],dest[idx+23]); @@ -850,11 +899,11 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol) code = bytebits_to_byte(dest+idx,32); code2 = bytebits_to_byte(dest+idx+32,32); - short version = bytebits_to_byte(dest+idx+14,4); - char unknown = bytebits_to_byte(dest+idx+19,8) ; - uint16_t number = bytebits_to_byte(dest+idx+36,9); + short version = bytebits_to_byte(dest+idx+28,8); //14,4 + char facilitycode = bytebits_to_byte(dest+idx+19,8) ; + uint16_t number = (bytebits_to_byte(dest+idx+37,8)<<8)|(bytebits_to_byte(dest+idx+46,8)); //36,9 - Dbprintf("XSF(%02d)%02x:%d (%08x%08x)",version,unknown,number,code,code2); + Dbprintf("XSF(%02d)%02x:%d (%08x%08x)",version,facilitycode,number,code,code2); if (ledcontrol) LED_D_OFF(); // if we're only looking for one tag @@ -950,7 +999,8 @@ void T55xxWriteBit(int bit) // Write one card block in page 0, no lock void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMode) { - unsigned int i; + //unsigned int i; //enio adjustment 12/10/14 + uint32_t i; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95); //125Khz @@ -995,8 +1045,8 @@ void T55xxWriteBlock(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t PwdMod void T55xxReadBlock(uint32_t Block, uint32_t Pwd, uint8_t PwdMode) { uint8_t *dest = (uint8_t *)BigBuf; - int m=0, i=0; - + //int m=0, i=0; //enio adjustment 12/10/14 + uint32_t m=0, i=0; FpgaDownloadAndGo(FPGA_BITSTREAM_LF); m = sizeof(BigBuf); // Clear destination buffer before sending the command @@ -1456,78 +1506,81 @@ int DemodPCF7931(uint8_t **outBlocks) { for (bitidx = 0; i < GraphTraceLen; i++) { - if ( (GraphBuffer[i-1] > GraphBuffer[i] && dir == 1 && GraphBuffer[i] > lmax) || (GraphBuffer[i-1] < GraphBuffer[i] && dir == 0 && GraphBuffer[i] < lmin)) - { - lc = i - lastval; - lastval = i; - - // Switch depending on lc length: - // Tolerance is 1/8 of clock rate (arbitrary) - if (abs(lc-clock/4) < tolerance) { - // 16T0 - if((i - pmc) == lc) { /* 16T0 was previous one */ - /* It's a PMC ! */ - i += (128+127+16+32+33+16)-1; - lastval = i; - pmc = 0; - block_done = 1; - } - else { - pmc = i; - } - } else if (abs(lc-clock/2) < tolerance) { - // 32TO - if((i - pmc) == lc) { /* 16T0 was previous one */ - /* It's a PMC ! */ - i += (128+127+16+32+33)-1; - lastval = i; - pmc = 0; - block_done = 1; - } - else if(half_switch == 1) { - BitStream[bitidx++] = 0; - half_switch = 0; - } - else - half_switch++; - } else if (abs(lc-clock) < tolerance) { - // 64TO - BitStream[bitidx++] = 1; - } else { - // Error - warnings++; - if (warnings > 10) - { - Dbprintf("Error: too many detection errors, aborting."); - return 0; - } - } - - if(block_done == 1) { - if(bitidx == 128) { - for(j=0; j<16; j++) { - Blocks[num_blocks][j] = 128*BitStream[j*8+7]+ - 64*BitStream[j*8+6]+ - 32*BitStream[j*8+5]+ - 16*BitStream[j*8+4]+ - 8*BitStream[j*8+3]+ - 4*BitStream[j*8+2]+ - 2*BitStream[j*8+1]+ - BitStream[j*8]; - } - num_blocks++; - } - bitidx = 0; - block_done = 0; - half_switch = 0; - } - if (GraphBuffer[i-1] > GraphBuffer[i]) dir=0; - else dir = 1; - } - if(bitidx==255) - bitidx=0; - warnings = 0; - if(num_blocks == 4) break; + if ( (GraphBuffer[i-1] > GraphBuffer[i] && dir == 1 && GraphBuffer[i] > lmax) || (GraphBuffer[i-1] < GraphBuffer[i] && dir == 0 && GraphBuffer[i] < lmin)) + { + lc = i - lastval; + lastval = i; + + // Switch depending on lc length: + // Tolerance is 1/8 of clock rate (arbitrary) + if (abs(lc-clock/4) < tolerance) { + // 16T0 + if((i - pmc) == lc) { /* 16T0 was previous one */ + /* It's a PMC ! */ + i += (128+127+16+32+33+16)-1; + lastval = i; + pmc = 0; + block_done = 1; + } + else { + pmc = i; + } + } else if (abs(lc-clock/2) < tolerance) { + // 32TO + if((i - pmc) == lc) { /* 16T0 was previous one */ + /* It's a PMC ! */ + i += (128+127+16+32+33)-1; + lastval = i; + pmc = 0; + block_done = 1; + } + else if(half_switch == 1) { + BitStream[bitidx++] = 0; + half_switch = 0; + } + else + half_switch++; + } else if (abs(lc-clock) < tolerance) { + // 64TO + BitStream[bitidx++] = 1; + } else { + // Error + warnings++; + if (warnings > 10) + { + Dbprintf("Error: too many detection errors, aborting."); + return 0; + } + } + + if(block_done == 1) { + if(bitidx == 128) { + for(j=0; j<16; j++) { + Blocks[num_blocks][j] = 128*BitStream[j*8+7]+ + 64*BitStream[j*8+6]+ + 32*BitStream[j*8+5]+ + 16*BitStream[j*8+4]+ + 8*BitStream[j*8+3]+ + 4*BitStream[j*8+2]+ + 2*BitStream[j*8+1]+ + BitStream[j*8]; + } + num_blocks++; + } + bitidx = 0; + block_done = 0; + half_switch = 0; + } + if(i < GraphTraceLen) + { + if (GraphBuffer[i-1] > GraphBuffer[i]) dir=0; + else dir = 1; + } + } + if(bitidx==255) + bitidx=0; + warnings = 0; + if(num_blocks == 4) break; } memcpy(outBlocks, Blocks, 16*num_blocks); return num_blocks;