FIX: @pwpiwi 's fixes for darkside / nested attack about the NACK/PRNG bugs.

[proxmark3-svn] / armsrc / lfsampling.c

diff --git a/armsrc/lfsampling.c b/armsrc/lfsampling.c
index 7af065ea141bb2f889c20de389000f93a8716094..120c0801de6ccecc3e7e558e10c078e3b187c980 100644 (file)
--- a/armsrc/lfsampling.c
+++ b/armsrc/lfsampling.c
@@ -12,7 +12,7 @@
 #include "string.h"
 
 #include "lfsampling.h"
 #include "string.h"
 
 #include "lfsampling.h"

-#include "cipherutils.h"
+

 sample_config config = { 1, 8, 1, 95, 0 } ;
 
 void printConfig()
 sample_config config = { 1, 8, 1, 95, 0 } ;
 
 void printConfig()


@@ -55,20 +55,19 @@ sample_config* getSamplingConfig()
 {
        return &config;
 }
 {
        return &config;
 }

-/*
+

 typedef struct {
        uint8_t * buffer;
        uint32_t numbits;
        uint32_t position;
 } BitstreamOut;
 
 typedef struct {
        uint8_t * buffer;
        uint32_t numbits;
        uint32_t position;
 } BitstreamOut;
 

-*/

 /**
  * @brief Pushes bit onto the stream
  * @param stream
  * @param bit
  */
 /**
  * @brief Pushes bit onto the stream
  * @param stream
  * @param bit
  */

-/*void pushBit( BitstreamOut* stream, uint8_t bit)
+void pushBit( BitstreamOut* stream, uint8_t bit)

 {
        int bytepos = stream->position >> 3; // divide by 8
        int bitpos = stream->position & 7;
 {
        int bytepos = stream->position >> 3; // divide by 8
        int bitpos = stream->position & 7;


@@ -76,7 +75,7 @@ typedef struct {
        stream->position++;
        stream->numbits++;
 }
        stream->position++;
        stream->numbits++;
 }

-*/
+

 /**
 * Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
 * if not already loaded, sets divisor and starts up the antenna.
 /**
 * Setup the FPGA to listen for samples. This method downloads the FPGA bitstream
 * if not already loaded, sets divisor and starts up the antenna.


@@ -225,21 +224,21 @@ uint32_t DoAcquisition_config( bool silent)
                                  ,silent);
 }
 
                                  ,silent);
 }
 

-uint32_t ReadLF(bool activeField)
+uint32_t ReadLF(bool activeField, bool silent)

 {
 {

-       printConfig();
+       if (!silent) printConfig();

        LFSetupFPGAForADC(config.divisor, activeField);
        // Now call the acquisition routine
        LFSetupFPGAForADC(config.divisor, activeField);
        // Now call the acquisition routine

-       return DoAcquisition_config(false);
+       return DoAcquisition_config(silent);

 }
 
 /**
 * Initializes the FPGA for reader-mode (field on), and acquires the samples.
 * @return number of bits sampled
 **/
 }
 
 /**
 * Initializes the FPGA for reader-mode (field on), and acquires the samples.
 * @return number of bits sampled
 **/

-uint32_t SampleLF()
+uint32_t SampleLF(bool printCfg)

 {
 {

-       return ReadLF(true);
+       return ReadLF(true, printCfg);

 }
 /**
 * Initializes the FPGA for snoop-mode (field off), and acquires the samples.
 }
 /**
 * Initializes the FPGA for snoop-mode (field off), and acquires the samples.


@@ -248,5 +247,5 @@ uint32_t SampleLF()
 
 uint32_t SnoopLF()
 {
 
 uint32_t SnoopLF()
 {

-       return ReadLF(false);
+       return ReadLF(false, true);

 }
 }