Compiler correctly identified a buffer overflow, fixed that and made the code use...

[proxmark3-svn] / armsrc / appmain.c

diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 8c224b6a1481c073e04421433c986e6db511b9a2..6e0b58b3da84fa7bc3e2463c47fd10bc285a9eb8 100644 (file)
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -23,7 +23,8 @@
 
 #include "legicrf.h"
 #include <hitag2.h>
 
 #include "legicrf.h"
 #include <hitag2.h>

-
+#include "lfsampling.h"
+#include "BigBuf.h"

 #ifdef WITH_LCD
  #include "LCD.h"
 #endif
 #ifdef WITH_LCD
  #include "LCD.h"
 #endif


@@ -36,17 +37,12 @@
 // is the order in which they go out on the wire.
 //=============================================================================
 
 // is the order in which they go out on the wire.
 //=============================================================================
 

-uint8_t ToSend[512];
+#define TOSEND_BUFFER_SIZE (9*MAX_FRAME_SIZE + 1 + 1 + 2)  // 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits 
+uint8_t ToSend[TOSEND_BUFFER_SIZE];

 int ToSendMax;
 static int ToSendBit;
 struct common_area common_area __attribute__((section(".commonarea")));
 
 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;
 void ToSendReset(void)
 {
        ToSendMax = -1;


@@ -67,7 +63,7 @@ void ToSendStuffBit(int b)
 
        ToSendBit++;
 
 
        ToSendBit++;
 

-       if(ToSendBit >= sizeof(ToSend)) {
+       if(ToSendMax >= sizeof(ToSend)) {

                ToSendBit = 0;
                DbpString("ToSendStuffBit overflowed!");
        }
                ToSendBit = 0;
                DbpString("ToSendStuffBit overflowed!");
        }


@@ -81,40 +77,12 @@ void DbpString(char *str)
 {
   byte_t len = strlen(str);
   cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);
 {
   byte_t len = strlen(str);
   cmd_send(CMD_DEBUG_PRINT_STRING,len,0,0,(byte_t*)str,len);

-//     /* this holds up stuff unless we're connected to usb */
-//     if (!UsbConnected())
-//             return;
-//
-//     UsbCommand c;
-//     c.cmd = CMD_DEBUG_PRINT_STRING;
-//     c.arg[0] = strlen(str);
-//     if(c.arg[0] > sizeof(c.d.asBytes)) {
-//             c.arg[0] = sizeof(c.d.asBytes);
-//     }
-//     memcpy(c.d.asBytes, str, c.arg[0]);
-//
-//     UsbSendPacket((uint8_t *)&c, sizeof(c));
-//     // TODO fix USB so stupid things like this aren't req'd
-//     SpinDelay(50);

 }
 
 #if 0
 void DbpIntegers(int x1, int x2, int x3)
 {
   cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);
 }
 
 #if 0
 void DbpIntegers(int x1, int x2, int x3)
 {
   cmd_send(CMD_DEBUG_PRINT_INTEGERS,x1,x2,x3,0,0);

-//     /* this holds up stuff unless we're connected to usb */
-//     if (!UsbConnected())
-//             return;
-//
-//     UsbCommand c;
-//     c.cmd = CMD_DEBUG_PRINT_INTEGERS;
-//     c.arg[0] = x1;
-//     c.arg[1] = x2;
-//     c.arg[2] = x3;
-//
-//     UsbSendPacket((uint8_t *)&c, sizeof(c));
-//     // XXX
-//     SpinDelay(50);

 }
 #endif
 
 }
 #endif
 


@@ -168,12 +136,25 @@ static int ReadAdc(int ch)
 
        AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
        AT91C_BASE_ADC->ADC_MR =
 
        AT91C_BASE_ADC->ADC_CR = AT91C_ADC_SWRST;
        AT91C_BASE_ADC->ADC_MR =

-               ADC_MODE_PRESCALE(32) |
-               ADC_MODE_STARTUP_TIME(16) |
-               ADC_MODE_SAMPLE_HOLD_TIME(8);
+               ADC_MODE_PRESCALE(63  /* was 32 */) |                                                   // ADC_CLK = MCK / ((63+1) * 2) = 48MHz / 128 = 375kHz
+               ADC_MODE_STARTUP_TIME(1  /* was 16 */) |                                                // Startup Time = (1+1) * 8 / ADC_CLK = 16 / 375kHz = 42,7us     Note: must be > 20us
+               ADC_MODE_SAMPLE_HOLD_TIME(15  /* was 8 */);                                     // Sample & Hold Time SHTIM = 15 / ADC_CLK = 15 / 375kHz = 40us
+
+       // Note: ADC_MODE_PRESCALE and ADC_MODE_SAMPLE_HOLD_TIME are set to the maximum allowed value. 
+       // Both AMPL_LO and AMPL_HI are very high impedance (10MOhm) outputs, the input capacitance of the ADC is 12pF (typical). This results in a time constant
+       // of RC = 10MOhm * 12pF = 120us. Even after the maximum configurable sample&hold time of 40us the input capacitor will not be fully charged. 
+       // 
+       // The maths are:
+       // If there is a voltage v_in at the input, the voltage v_cap at the capacitor (this is what we are measuring) will be
+       //
+       //       v_cap = v_in * (1 - exp(-RC/SHTIM))  =   v_in * (1 - exp(-3))  =  v_in * 0,95                   (i.e. an error of 5%)
+       // 
+       // Note: with the "historic" values in the comments above, the error was 34%  !!!
+       

        AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
 
        AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;
        AT91C_BASE_ADC->ADC_CHER = ADC_CHANNEL(ch);
 
        AT91C_BASE_ADC->ADC_CR = AT91C_ADC_START;

+

        while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
                ;
        d = AT91C_BASE_ADC->ADC_CDR[ch];
        while(!(AT91C_BASE_ADC->ADC_SR & ADC_END_OF_CONVERSION(ch)))
                ;
        d = AT91C_BASE_ADC->ADC_CDR[ch];


@@ -195,15 +176,11 @@ int AvgAdc(int ch) // was static - merlok
 
 void MeasureAntennaTuning(void)
 {
 
 void MeasureAntennaTuning(void)
 {

-       uint8_t *dest = (uint8_t *)BigBuf+FREE_BUFFER_OFFSET;
+       uint8_t LF_Results[256];

        int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
        int vLf125 = 0, vLf134 = 0, vHf = 0;    // in mV
 
        int i, adcval = 0, peak = 0, peakv = 0, peakf = 0; //ptr = 0 
        int vLf125 = 0, vLf134 = 0, vHf = 0;    // in mV
 

-//     UsbCommand c;
-
-  LED_B_ON();
-       DbpString("Measuring antenna characteristics, please wait...");
-       memset(dest,0,sizeof(FREE_BUFFER_SIZE));
+       LED_B_ON();

 
 /*
  * Sweeps the useful LF range of the proxmark from
 
 /*
  * Sweeps the useful LF range of the proxmark from


@@ -216,46 +193,37 @@ void MeasureAntennaTuning(void)
   
        FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
   
        FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);

-       for (i=255; i>19; i--) {
+       for (i=255; i>=19; i--) {

     WDT_HIT();
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
                SpinDelay(20);
     WDT_HIT();
                FpgaSendCommand(FPGA_CMD_SET_DIVISOR, i);
                SpinDelay(20);

-               // Vref = 3.3V, and a 10000:240 voltage divider on the input
-               // can measure voltages up to 137500 mV
-               adcval = ((137500 * AvgAdc(ADC_CHAN_LF)) >> 10);
+               adcval = ((MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10);

                if (i==95)      vLf125 = adcval; // voltage at 125Khz
                if (i==89)      vLf134 = adcval; // voltage at 134Khz
 
                if (i==95)      vLf125 = adcval; // voltage at 125Khz
                if (i==89)      vLf134 = adcval; // voltage at 134Khz
 

-               dest[i] = adcval>>8; // scale int to fit in byte for graphing purposes
-               if(dest[i] > peak) {
+               LF_Results[i] = adcval>>8; // scale int to fit in byte for graphing purposes
+               if(LF_Results[i] > peak) {

                        peakv = adcval;
                        peakv = adcval;

-                       peak = dest[i];
+                       peak = LF_Results[i];

                        peakf = i;
                        //ptr = i;
                }
        }
 
                        peakf = i;
                        //ptr = i;
                }
        }
 

-  LED_A_ON();
+       for (i=18; i >= 0; i--) LF_Results[i] = 0;
+       
+       LED_A_ON();

        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
        SpinDelay(20);
        // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
        FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
        SpinDelay(20);

-       // Vref = 3300mV, and an 10:1 voltage divider on the input
-       // can measure voltages up to 33000 mV
-       vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
-
-//     c.cmd = CMD_MEASURED_ANTENNA_TUNING;
-//     c.arg[0] = (vLf125 << 0) | (vLf134 << 16);
-//     c.arg[1] = vHf;
-//     c.arg[2] = peakf | (peakv << 16);
-
-  DbpString("Measuring complete, sending report back to host");
-  cmd_send(CMD_MEASURED_ANTENNA_TUNING,vLf125|(vLf134<<16),vHf,peakf|(peakv<<16),0,0);
-//     UsbSendPacket((uint8_t *)&c, sizeof(c));
+       vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;
+
+       cmd_send(CMD_MEASURED_ANTENNA_TUNING, vLf125 | (vLf134<<16), vHf, peakf | (peakv<<16), LF_Results, 256);

        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

-  LED_A_OFF();
-  LED_B_OFF();
-  return;
+       LED_A_OFF();
+       LED_B_OFF();
+       return;

 }
 
 void MeasureAntennaTuningHf(void)
 }
 
 void MeasureAntennaTuningHf(void)


@@ -264,25 +232,30 @@ void MeasureAntennaTuningHf(void)
 
        DbpString("Measuring HF antenna, press button to exit");
 
 
        DbpString("Measuring HF antenna, press button to exit");
 

+       // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
+

        for (;;) {
        for (;;) {

-               // Let the FPGA drive the high-frequency antenna around 13.56 MHz.
-               FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);

                SpinDelay(20);
                SpinDelay(20);

-               // Vref = 3300mV, and an 10:1 voltage divider on the input
-               // can measure voltages up to 33000 mV
-               vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
+               vHf = (MAX_ADC_HF_VOLTAGE * AvgAdc(ADC_CHAN_HF)) >> 10;

 
                Dbprintf("%d mV",vHf);
                if (BUTTON_PRESS()) break;
        }
        DbpString("cancelled");
 
                Dbprintf("%d mV",vHf);
                if (BUTTON_PRESS()) break;
        }
        DbpString("cancelled");

+
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+

 }
 
 
 void SimulateTagHfListen(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;
        uint8_t v = 0;
        int i;
        int p = 0;


@@ -317,7 +290,7 @@ void SimulateTagHfListen(void)
                                p = 0;
                                i++;
 
                                p = 0;
                                i++;
 

-                               if(i >= FREE_BUFFER_SIZE) {
+                               if(i >= HF_14B_SNOOP_BUFFER_SIZE) {

                                        break;
                                }
                        }
                                        break;
                                }
                        }


@@ -340,7 +313,7 @@ extern struct version_information version_information;
 extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
 void SendVersion(void)
 {
 extern char *_bootphase1_version_pointer, _flash_start, _flash_end;
 void SendVersion(void)
 {

-       char temp[256]; /* Limited data payload in USB packets */
+       char temp[512]; /* Limited data payload in USB packets */

        DbpString("Prox/RFID mark3 RFID instrument");
 
        /* Try to find the bootrom version information. Expect to find a pointer at
        DbpString("Prox/RFID mark3 RFID instrument");
 
        /* Try to find the bootrom version information. Expect to find a pointer at


@@ -389,13 +362,13 @@ void SamyRun()
 
        int selected = 0;
        int playing = 0;
 
        int selected = 0;
        int playing = 0;

+       int cardRead = 0;

 
        // Turn on selected LED
        LED(selected + 1, 0);
 
        for (;;)
        {
 
        // Turn on selected LED
        LED(selected + 1, 0);
 
        for (;;)
        {

-//             UsbPoll(FALSE);

                usb_poll();
     WDT_HIT();
 
                usb_poll();
     WDT_HIT();
 


@@ -404,7 +377,7 @@ void SamyRun()
                SpinDelay(300);
 
                // Button was held for a second, begin recording
                SpinDelay(300);
 
                // Button was held for a second, begin recording

-               if (button_pressed > 0)
+               if (button_pressed > 0 && cardRead == 0)

                {
                        LEDsoff();
                        LED(selected + 1, 0);
                {
                        LEDsoff();
                        LED(selected + 1, 0);


@@ -430,6 +403,40 @@ void SamyRun()
                        // If we were previously playing, set playing off
                        // so next button push begins playing what we recorded
                        playing = 0;
                        // If we were previously playing, set playing off
                        // so next button push begins playing what we recorded
                        playing = 0;

+                       
+                       cardRead = 1;
+       
+               }
+
+               else if (button_pressed > 0 && cardRead == 1)
+               {
+                                       LEDsoff();
+                                       LED(selected + 1, 0);
+                                       LED(LED_ORANGE, 0);
+
+                                       // record
+                                       Dbprintf("Cloning %x %x %x", selected, high[selected], low[selected]);
+
+                                       // wait for button to be released
+                                       while(BUTTON_PRESS())
+                                               WDT_HIT();
+
+                                       /* need this delay to prevent catching some weird data */
+                                       SpinDelay(500);
+
+                                       CopyHIDtoT55x7(high[selected], low[selected], 0, 0);
+                                       Dbprintf("Cloned %x %x %x", selected, high[selected], low[selected]);
+
+                                       LEDsoff();
+                                       LED(selected + 1, 0);
+                                       // Finished recording
+
+                                       // If we were previously playing, set playing off
+                                       // so next button push begins playing what we recorded
+                                       playing = 0;
+                                       
+                                       cardRead = 0;
+                       

                }
 
                // Change where to record (or begin playing)
                }
 
                // Change where to record (or begin playing)


@@ -517,26 +524,32 @@ static const int LIGHT_LEN = sizeof(LIGHT_SCHEME)/sizeof(LIGHT_SCHEME[0]);
 
 void ListenReaderField(int limit)
 {
 
 void ListenReaderField(int limit)
 {

-       int lf_av, lf_av_new, lf_baseline= 0, lf_count= 0, lf_max;
-       int hf_av, hf_av_new,  hf_baseline= 0, hf_count= 0, hf_max;
+       int lf_av, lf_av_new, lf_baseline= 0, lf_max;
+       int hf_av, hf_av_new,  hf_baseline= 0, hf_max;

        int mode=1, display_val, display_max, i;
 
        int mode=1, display_val, display_max, i;
 

-#define LF_ONLY                1
-#define HF_ONLY                2
+#define LF_ONLY                                                1
+#define HF_ONLY                                                2
+#define REPORT_CHANGE                          10    // report new values only if they have changed at least by REPORT_CHANGE
+
+
+       // switch off FPGA - we don't want to measure our own signal
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

 
        LEDsoff();
 
 
        LEDsoff();
 

-       lf_av=lf_max=ReadAdc(ADC_CHAN_LF);
+       lf_av = lf_max = AvgAdc(ADC_CHAN_LF);

 
        if(limit != HF_ONLY) {
 
        if(limit != HF_ONLY) {

-               Dbprintf("LF 125/134 Baseline: %d", lf_av);
+               Dbprintf("LF 125/134kHz Baseline: %dmV", (MAX_ADC_LF_VOLTAGE * lf_av) >> 10);

                lf_baseline = lf_av;
        }
 
                lf_baseline = lf_av;
        }
 

-       hf_av=hf_max=ReadAdc(ADC_CHAN_HF);
+       hf_av = hf_max = AvgAdc(ADC_CHAN_HF);

 
        if (limit != LF_ONLY) {
 
        if (limit != LF_ONLY) {

-               Dbprintf("HF 13.56 Baseline: %d", hf_av);
+               Dbprintf("HF 13.56MHz Baseline: %dmV", (MAX_ADC_HF_VOLTAGE * hf_av) >> 10);

                hf_baseline = hf_av;
        }
 
                hf_baseline = hf_av;
        }
 


@@ -559,38 +572,38 @@ void ListenReaderField(int limit)
                WDT_HIT();
 
                if (limit != HF_ONLY) {
                WDT_HIT();
 
                if (limit != HF_ONLY) {

-                       if(mode==1) {
-                               if (abs(lf_av - lf_baseline) > 10) LED_D_ON();
-                               else                               LED_D_OFF();
+                       if(mode == 1) {
+                               if (abs(lf_av - lf_baseline) > REPORT_CHANGE) 
+                                       LED_D_ON();
+                               else
+                                       LED_D_OFF();

                        }
 
                        }
 

-                       ++lf_count;
-                       lf_av_new= ReadAdc(ADC_CHAN_LF);
+                       lf_av_new = AvgAdc(ADC_CHAN_LF);

                        // see if there's a significant change
                        // see if there's a significant change

-                       if(abs(lf_av - lf_av_new) > 10) {
-                               Dbprintf("LF 125/134 Field Change: %x %x %x", lf_av, lf_av_new, lf_count);
+                       if(abs(lf_av - lf_av_new) > REPORT_CHANGE) {
+                               Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);

                                lf_av = lf_av_new;
                                if (lf_av > lf_max)
                                        lf_max = lf_av;
                                lf_av = lf_av_new;
                                if (lf_av > lf_max)
                                        lf_max = lf_av;

-                               lf_count= 0;

                        }
                }
 
                if (limit != LF_ONLY) {
                        if (mode == 1){
                        }
                }
 
                if (limit != LF_ONLY) {
                        if (mode == 1){

-                               if (abs(hf_av - hf_baseline) > 10) LED_B_ON();
-                               else                               LED_B_OFF();
+                               if (abs(hf_av - hf_baseline) > REPORT_CHANGE)   
+                                       LED_B_ON();
+                               else
+                                       LED_B_OFF();

                        }
 
                        }
 

-                       ++hf_count;
-                       hf_av_new= ReadAdc(ADC_CHAN_HF);
+                       hf_av_new = AvgAdc(ADC_CHAN_HF);

                        // see if there's a significant change
                        // see if there's a significant change

-                       if(abs(hf_av - hf_av_new) > 10) {
-                               Dbprintf("HF 13.56 Field Change: %x %x %x", hf_av, hf_av_new, hf_count);
+                       if(abs(hf_av - hf_av_new) > REPORT_CHANGE) {
+                               Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);

                                hf_av = hf_av_new;
                                if (hf_av > hf_max)
                                        hf_max = hf_av;
                                hf_av = hf_av_new;
                                if (hf_av > hf_max)
                                        hf_max = hf_av;

-                               hf_count= 0;

                        }
                }
 
                        }
                }
 


@@ -631,32 +644,45 @@ void UsbPacketReceived(uint8_t *packet, int len)
   
        switch(c->cmd) {
 #ifdef WITH_LF
   
        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:
                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(c->arg[0]),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:
                        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:
                        break;
                case CMD_HID_DEMOD_FSK:

-                       CmdHIDdemodFSK(0, 0, 0, 1);                                     // Demodulate HID tag
+                       CmdHIDdemodFSK(c->arg[0], 0, 0, 1);

                        break;
                case CMD_HID_SIM_TAG:
                        break;
                case CMD_HID_SIM_TAG:

-                       CmdHIDsimTAG(c->arg[0], c->arg[1], 1);                                  // Simulate HID tag by ID
+                       CmdHIDsimTAG(c->arg[0], c->arg[1], 1);
+                       break;
+               case CMD_FSK_SIM_TAG:
+                       CmdFSKsimTAG(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       break;
+               case CMD_ASK_SIM_TAG:
+                       CmdASKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
+                       break;
+               case CMD_PSK_SIM_TAG:
+                       CmdPSKsimTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);

                        break;
                        break;

-               case CMD_HID_CLONE_TAG: // Clone HID tag by ID to T55x7
+               case CMD_HID_CLONE_TAG:

                        CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;
                case CMD_IO_DEMOD_FSK:
                        CopyHIDtoT55x7(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;
                case CMD_IO_DEMOD_FSK:

-                       CmdIOdemodFSK(1, 0, 0, 1);                                      // Demodulate IO tag
+                       CmdIOdemodFSK(c->arg[0], 0, 0, 1);

                        break;
                        break;

-               case CMD_IO_CLONE_TAG: // Clone IO tag by ID to T55x7
+               case CMD_IO_CLONE_TAG:

                        CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
                        break;
                        CopyIOtoT55x7(c->arg[0], c->arg[1], c->d.asBytes[0]);
                        break;

+               case CMD_EM410X_DEMOD:
+                       CmdEM410xdemod(c->arg[0], 0, 0, 1);
+                       break;

                case CMD_EM410X_WRITE_TAG:
                        WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
                        break;
                case CMD_EM410X_WRITE_TAG:
                        WriteEM410x(c->arg[0], c->arg[1], c->arg[2]);
                        break;


@@ -674,10 +700,10 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_LF_SIMULATE_BIDIR:
                        SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
                        break;
                case CMD_LF_SIMULATE_BIDIR:
                        SimulateTagLowFrequencyBidir(c->arg[0], c->arg[1]);
                        break;

-               case CMD_INDALA_CLONE_TAG:                                      // Clone Indala 64-bit tag by UID to T55x7
+               case CMD_INDALA_CLONE_TAG:

                        CopyIndala64toT55x7(c->arg[0], c->arg[1]);                                      
                        break;
                        CopyIndala64toT55x7(c->arg[0], c->arg[1]);                                      
                        break;

-               case CMD_INDALA_CLONE_TAG_L:                                    // Clone Indala 224-bit tag by UID to T55x7
+               case CMD_INDALA_CLONE_TAG_L:

                        CopyIndala224toT55x7(c->d.asDwords[0], c->d.asDwords[1], c->d.asDwords[2], c->d.asDwords[3], c->d.asDwords[4], c->d.asDwords[5], c->d.asDwords[6]);
                        break;
                case CMD_T55XX_READ_BLOCK:
                        CopyIndala224toT55x7(c->d.asDwords[0], c->d.asDwords[1], c->d.asDwords[2], c->d.asDwords[3], c->d.asDwords[4], c->d.asDwords[5], c->d.asDwords[6]);
                        break;
                case CMD_T55XX_READ_BLOCK:


@@ -686,13 +712,12 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_T55XX_WRITE_BLOCK:
                        T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;
                case CMD_T55XX_WRITE_BLOCK:
                        T55xxWriteBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes[0]);
                        break;

-               case CMD_T55XX_READ_TRACE: // Clone HID tag by ID to T55x7
+               case CMD_T55XX_READ_TRACE:

                        T55xxReadTrace();
                        break;
                        T55xxReadTrace();
                        break;

-               case CMD_PCF7931_READ: // Read PCF7931 tag
+               case CMD_PCF7931_READ:

                        ReadPCF7931();
                        cmd_send(CMD_ACK,0,0,0,0,0);
                        ReadPCF7931();
                        cmd_send(CMD_ACK,0,0,0,0,0);

-//             UsbSendPacket((uint8_t*)&ack, sizeof(ack));

                        break;
                case CMD_EM4X_READ_WORD:
                        EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);
                        break;
                case CMD_EM4X_READ_WORD:
                        EM4xReadWord(c->arg[1], c->arg[2],c->d.asBytes[0]);


@@ -738,7 +763,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        ReaderIso15693(c->arg[0]);
                        break;
                case CMD_SIMTAG_ISO_15693:
                        ReaderIso15693(c->arg[0]);
                        break;
                case CMD_SIMTAG_ISO_15693:

-                       SimTagIso15693(c->arg[0]);
+                       SimTagIso15693(c->arg[0], c->d.asBytes);

                        break;
 #endif
 
                        break;
 #endif
 


@@ -787,6 +812,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_SIMULATE_TAG_ISO_14443a:
                        SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);  // ## Simulate iso14443a tag - pass tag type & UID
                        break;
                case CMD_SIMULATE_TAG_ISO_14443a:
                        SimulateIso14443aTag(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);  // ## Simulate iso14443a tag - pass tag type & UID
                        break;

+                       

                case CMD_EPA_PACE_COLLECT_NONCE:
                        EPA_PACE_Collect_Nonce(c);
                        break;
                case CMD_EPA_PACE_COLLECT_NONCE:
                        EPA_PACE_Collect_Nonce(c);
                        break;


@@ -800,9 +826,18 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_MIFAREU_READBL:
                        MifareUReadBlock(c->arg[0],c->d.asBytes);
                        break;
                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:
                case CMD_MIFAREU_READCARD:

-                       MifareUReadCard(c->arg[0],c->d.asBytes);
-                        break;
+                       MifareUReadCard(c->arg[0], c->arg[1], c->d.asBytes);
+                       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;
                case CMD_MIFARE_READSC:
                        MifareReadSector(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;


@@ -843,17 +878,21 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
                        
                // Work with "magic Chinese" card
                        break;
                        
                // Work with "magic Chinese" card

-               case CMD_MIFARE_EML_CSETBLOCK:
+               case CMD_MIFARE_CSETBLOCK:

                        MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
                        MifareCSetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;

-               case CMD_MIFARE_EML_CGETBLOCK:
+               case CMD_MIFARE_CGETBLOCK:

                        MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;
                        MifareCGetBlock(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);
                        break;

+               case CMD_MIFARE_CIDENT:
+                       MifareCIdent();
+                       break;

                        
                // mifare sniffer
                case CMD_MIFARE_SNIFFER:
                        SniffMifare(c->arg[0]);
                        break;
                        
                // mifare sniffer
                case CMD_MIFARE_SNIFFER:
                        SniffMifare(c->arg[0]);
                        break;

+

 #endif
 
 #ifdef WITH_ICLASS
 #endif
 
 #ifdef WITH_ICLASS


@@ -862,11 +901,17 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        SnoopIClass();
                        break;
                case CMD_SIMULATE_TAG_ICLASS:
                        SnoopIClass();
                        break;
                case CMD_SIMULATE_TAG_ICLASS:

-                       SimulateIClass(c->arg[0], c->d.asBytes);
+                       SimulateIClass(c->arg[0], c->arg[1], c->arg[2], c->d.asBytes);

                        break;
                case CMD_READER_ICLASS:
                        ReaderIClass(c->arg[0]);
                        break;
                        break;
                case CMD_READER_ICLASS:
                        ReaderIClass(c->arg[0]);
                        break;

+               case CMD_READER_ICLASS_REPLAY:
+                   ReaderIClass_Replay(c->arg[0], c->d.asBytes);
+                       break;
+       case CMD_ICLASS_EML_MEMSET:
+                       emlSet(c->d.asBytes,c->arg[0], c->arg[1]);
+                       break;

 #endif
 
                case CMD_SIMULATE_TAG_HF_LISTEN:
 #endif
 
                case CMD_SIMULATE_TAG_HF_LISTEN:


@@ -874,7 +919,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
 
                case CMD_BUFF_CLEAR:
                        break;
 
                case CMD_BUFF_CLEAR:

-                       BufferClear();
+                       BigBuf_Clear();

                        break;
 
                case CMD_MEASURE_ANTENNA_TUNING:
                        break;
 
                case CMD_MEASURE_ANTENNA_TUNING:


@@ -896,34 +941,21 @@ void UsbPacketReceived(uint8_t *packet, int len)
                        break;
 
                case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:
                        break;
 
                case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K:

-//                     UsbCommand n;
-//                     if(c->cmd == CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K) {
-//                             n.cmd = CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K;
-//                     } else {
-//                             n.cmd = CMD_DOWNLOADED_RAW_BITS_TI_TYPE;
-//                     }
-//                     n.arg[0] = c->arg[0];
-      //                       memcpy(n.d.asBytes, BigBuf+c->arg[0], 48); // 12*sizeof(uint32_t)
-      //                       LED_B_ON();
-      //      usb_write((uint8_t *)&n, sizeof(n));
-      //                       UsbSendPacket((uint8_t *)&n, sizeof(n));
-      //                       LED_B_OFF();

 
                        LED_B_ON();
 
                        LED_B_ON();

+                       uint8_t *BigBuf = BigBuf_get_addr();

                        for(size_t i=0; i<c->arg[1]; i += USB_CMD_DATA_SIZE) {
                                size_t len = MIN((c->arg[1] - i),USB_CMD_DATA_SIZE);
                        for(size_t i=0; i<c->arg[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,BigBuf_get_traceLen(),BigBuf+c->arg[0]+i,len);

                        }
                        // Trigger a finish downloading signal with an ACK frame
                        }
                        // Trigger a finish downloading signal with an ACK frame

-                       cmd_send(CMD_ACK,0,0,0,0,0);
+                       cmd_send(CMD_ACK,1,0,BigBuf_get_traceLen(),getSamplingConfig(),sizeof(sample_config));

                        LED_B_OFF();
                        break;
 
                case CMD_DOWNLOADED_SIM_SAMPLES_125K: {
                        LED_B_OFF();
                        break;
 
                case CMD_DOWNLOADED_SIM_SAMPLES_125K: {

-                       uint8_t *b = (uint8_t *)BigBuf;
-                       memcpy(b+c->arg[0], c->d.asBytes, 48);
-                       //Dbprintf("copied 48 bytes to %i",b+c->arg[0]);
-//                     UsbSendPacket((uint8_t*)&ack, sizeof(ack));
+                       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;
                }       
                        cmd_send(CMD_ACK,0,0,0,0,0);
                        break;
                }       


@@ -981,7 +1013,6 @@ void UsbPacketReceived(uint8_t *packet, int len)
                case CMD_DEVICE_INFO: {
                        uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
                        if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;
                case CMD_DEVICE_INFO: {
                        uint32_t dev_info = DEVICE_INFO_FLAG_OSIMAGE_PRESENT | DEVICE_INFO_FLAG_CURRENT_MODE_OS;
                        if(common_area.flags.bootrom_present) dev_info |= DEVICE_INFO_FLAG_BOOTROM_PRESENT;

-//                     UsbSendPacket((uint8_t*)&c, sizeof(c));

                        cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);     
                        break;
                }
                        cmd_send(CMD_DEVICE_INFO,dev_info,0,0,0,0);     
                        break;
                }


@@ -994,7 +1025,7 @@ void UsbPacketReceived(uint8_t *packet, int len)
 void  __attribute__((noreturn)) AppMain(void)
 {
        SpinDelay(100);
 void  __attribute__((noreturn)) AppMain(void)
 {
        SpinDelay(100);

-
+       clear_trace();

        if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
                /* Initialize common area */
                memset(&common_area, 0, sizeof(common_area));
        if(common_area.magic != COMMON_AREA_MAGIC || common_area.version != 1) {
                /* Initialize common area */
                memset(&common_area, 0, sizeof(common_area));


@@ -1008,9 +1039,8 @@ void  __attribute__((noreturn)) AppMain(void)
        LED_B_OFF();
        LED_A_OFF();
 
        LED_B_OFF();
        LED_A_OFF();
 

-  // Init USB device`
+       // Init USB device

   usb_enable();
   usb_enable();

-//     UsbStart();

 
        // The FPGA gets its clock from us from PCK0 output, so set that up.
        AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;
 
        // The FPGA gets its clock from us from PCK0 output, so set that up.
        AT91C_BASE_PIOA->PIO_BSR = GPIO_PCK0;


@@ -1046,8 +1076,6 @@ void  __attribute__((noreturn)) AppMain(void)
         UsbPacketReceived(rx,rx_len);
       }
     }
         UsbPacketReceived(rx,rx_len);
       }
     }

-//             UsbPoll(FALSE);
-

                WDT_HIT();
 
 #ifdef WITH_LF
                WDT_HIT();
 
 #ifdef WITH_LF