Merge pull request #4 from gcohen55/ubuntu_makefile

[proxmark3-svn] / armsrc / lfops.c

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 1bd23e5a7251c27f2682ee1c684de79b3e858db2..3c7a544ebf9f0a95c7995b51d74ae34338639155 100644 (file)
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -382,7 +382,7 @@ void WriteTItag(uint32_t idhi, uint32_t idlo, uint16_t crc)
        DbpString("Now use 'lf ti read' to check");
 }
 
        DbpString("Now use 'lf ti read' to check");
 }
 

-void SimulateTagLowFrequency(uint16_t period, uint32_t gap, uint8_t ledcontrol)
+void SimulateTagLowFrequency(int period, int gap, int ledcontrol)

 {
        int i;
        uint8_t *tab = BigBuf_get_addr();
 {
        int i;
        uint8_t *tab = BigBuf_get_addr();


@@ -402,7 +402,7 @@ void SimulateTagLowFrequency(uint16_t period, uint32_t gap, uint8_t ledcontrol)
        for(;;) {
                //wait until SSC_CLK goes HIGH
                while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {
        for(;;) {
                //wait until SSC_CLK goes HIGH
                while(!(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK)) {

-                       if(BUTTON_PRESS() || usb_poll()) {
+                       if(BUTTON_PRESS() || (usb_poll_validate_length() )) {

                                DbpString("Stopped");
                                return;
                        }
                                DbpString("Stopped");
                                return;
                        }


@@ -651,7 +651,7 @@ void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
        int ledcontrol = 1;
        int n=0, i=0;
        uint8_t clk = (arg1 >> 8) & 0xFF;
        int ledcontrol = 1;
        int n=0, i=0;
        uint8_t clk = (arg1 >> 8) & 0xFF;

-       uint8_t encoding = arg1 & 1;
+       uint8_t encoding = arg1 & 0xFF;

        uint8_t separator = arg2 & 1;
        uint8_t invert = (arg2 >> 8) & 1;
 
        uint8_t separator = arg2 & 1;
        uint8_t invert = (arg2 >> 8) & 1;
 


@@ -762,7 +762,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 

-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {

 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();


@@ -841,6 +841,96 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
        if (ledcontrol) LED_A_OFF();
 }
 
        if (ledcontrol) LED_A_OFF();
 }
 

+// loop to get raw HID waveform then FSK demodulate the TAG ID from it
+void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
+{
+       uint8_t *dest = BigBuf_get_addr();
+       //const size_t sizeOfBigBuff = BigBuf_max_traceLen();
+       size_t size; 
+       int idx=0;
+       // Configure to go in 125Khz listen mode
+       LFSetupFPGAForADC(95, true);
+
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
+
+               WDT_HIT();
+               if (ledcontrol) LED_A_ON();
+
+               DoAcquisition_default(-1,true);
+               // FSK demodulator
+               //size = sizeOfBigBuff;  //variable size will change after demod so re initialize it before use
+               size = 50*128*2; //big enough to catch 2 sequences of largest format
+               idx = AWIDdemodFSK(dest, &size);
+               
+               if (idx>0 && size==96){
+               // 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(dest+idx+64,32);
+               uint32_t rawHi = bytebits_to_byte(dest+idx+32,32);
+               uint32_t rawHi2 = bytebits_to_byte(dest+idx,32);
+
+               size = removeParity(dest, idx+8, 4, 1, 88);
+               // 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(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);
+                }
+                       }
+                       if (findone){
+                               if (ledcontrol) LED_A_OFF();
+                               return;
+                       }
+                       // reset
+               }
+               idx = 0;
+               WDT_HIT();
+       }
+       DbpString("Stopped");
+       if (ledcontrol) LED_A_OFF();
+}
+

 void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
        uint8_t *dest = BigBuf_get_addr();
 void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
 {
        uint8_t *dest = BigBuf_get_addr();


@@ -852,7 +942,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 

-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {

 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
 
                WDT_HIT();
                if (ledcontrol) LED_A_ON();


@@ -861,7 +951,7 @@ void CmdEM410xdemod(int findone, int *high, int *low, int ledcontrol)
                size  = BigBuf_max_traceLen();
                //askdemod and manchester decode
                if (size > 16385) size = 16385; //big enough to catch 2 sequences of largest format
                size  = BigBuf_max_traceLen();
                //askdemod and manchester decode
                if (size > 16385) size = 16385; //big enough to catch 2 sequences of largest format

-               errCnt = askmandemod(dest, &size, &clk, &invert, maxErr);
+               errCnt = askdemod(dest, &size, &clk, &invert, maxErr, 0, 1);

                WDT_HIT();
 
                if (errCnt<0) continue;
                WDT_HIT();
 
                if (errCnt<0) continue;


@@ -913,7 +1003,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 
        // Configure to go in 125Khz listen mode
        LFSetupFPGAForADC(95, true);
 

-       while(!BUTTON_PRESS()) {
+       while(!BUTTON_PRESS() && !usb_poll_validate_length()) {

                WDT_HIT();
                if (ledcontrol) LED_A_ON();
                DoAcquisition_default(-1,true);
                WDT_HIT();
                if (ledcontrol) LED_A_ON();
                DoAcquisition_default(-1,true);


@@ -953,7 +1043,7 @@ 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);
                        version = bytebits_to_byte(dest+idx+27,8); //14,4
                        code = bytebits_to_byte(dest+idx,32);
                        code2 = bytebits_to_byte(dest+idx+32,32);
                        version = bytebits_to_byte(dest+idx+27,8); //14,4

-                       facilitycode = bytebits_to_byte(dest+idx+18,8) ;
+               facilitycode = bytebits_to_byte(dest+idx+18,8);

                        number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
 
                        crc = bytebits_to_byte(dest+idx+54,8);
                        number = (bytebits_to_byte(dest+idx+36,8)<<8)|(bytebits_to_byte(dest+idx+45,8)); //36,9
 
                        crc = bytebits_to_byte(dest+idx+54,8);


@@ -1043,10 +1133,10 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
  * To compensate antenna falling times shorten the write times
  * and enlarge the gap ones.
  */
  * To compensate antenna falling times shorten the write times
  * and enlarge the gap ones.
  */

-#define START_GAP 50*8 // 10 - 50fc 250
-#define WRITE_GAP 20*8 //  8 - 30fc
-#define WRITE_0   24*8 // 16 - 31fc 24fc 192
-#define WRITE_1   54*8 // 48 - 63fc 54fc 432 for T55x7; 448 for E5550
+#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

 
 //  VALUES TAKEN FROM EM4x function: SendForward
 //  START_GAP = 440;       (55*8) cycles at 125Khz (8us = 1cycle)
 
 //  VALUES TAKEN FROM EM4x function: SendForward
 //  START_GAP = 440;       (55*8) cycles at 125Khz (8us = 1cycle)