dash/proxmark3
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Some more nasty bugs fixed in the lf t55xx manchester_decode method.

Browse Source 
ADD: a little function to see if GraphBuffer is not used.
This commit is contained in:
iceman1001
2014-10-26 23:16:25 +01:00
parent db297e69e1
commit c6be64da09
7 changed files with 54 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
client/ui.c
View File

@@ -95,14 +95,14 @@ void SetLogFilename(char *fn)
logfilename = fn;
}
int manchester_decode( int * data, const size_t len, uint8_t * dataout){
int manchester_decode( int * data, const size_t len, uint8_t * dataout, size_t dataoutlen){
int bitlength = 0;
int i, clock, high, low, startindex;
low = startindex = 0;
high = 1;
uint8_t * bitStream = (uint8_t* ) malloc(sizeof(uint8_t) * len);
memset(bitStream, 0x00, len);
uint8_t * bitStream = (uint8_t* ) malloc(sizeof(uint8_t) * dataoutlen);
memset(bitStream, 0x00, dataoutlen);
/* Detect high and lows */
for (i = 0; i < len; i++) {
@@ -116,12 +116,12 @@ int manchester_decode( int * data, const size_t len, uint8_t * dataout){
clock = GetT55x7Clock( data, len, high );
startindex = DetectFirstTransition(data, len, high);
PrintAndLog(" Clock : %d", clock);
//PrintAndLog(" Clock : %d", clock);
if (high != 1)
bitlength = ManchesterConvertFrom255(data, len, bitStream, high, low, clock, startindex);
bitlength = ManchesterConvertFrom255(data, len, bitStream, dataoutlen, high, low, clock, startindex);
else
bitlength= ManchesterConvertFrom1(data, len, bitStream, clock, startindex);
bitlength= ManchesterConvertFrom1(data, len, bitStream, dataoutlen, clock, startindex);
memcpy(dataout, bitStream, bitlength);
free(bitStream);
@@ -192,7 +192,7 @@ int manchester_decode( int * data, const size_t len, uint8_t * dataout){
return i;
}
int ManchesterConvertFrom255(const int * data, const size_t len, uint8_t * dataout, int high, int low, int clock, int startIndex){
int ManchesterConvertFrom255(const int * data, const size_t len, uint8_t * dataout, int dataoutlen, int high, int low, int clock, int startIndex){
int i, j, z, hithigh, hitlow, bitIndex, startType;
i = 0;
@@ -205,7 +205,7 @@ int manchester_decode( int * data, const size_t len, uint8_t * dataout){
int firstST = 0;
// i = clock frame of data
for (; i < (int)(len / clock); i++)
for (; i < (int)(len/clock); i++)
{
hithigh = 0;
hitlow = 0;
@@ -261,11 +261,13 @@ int manchester_decode( int * data, const size_t len, uint8_t * dataout){
if ( firstST == 4)
break;
if ( bitIndex >= dataoutlen-1 )
break;
}
return bitIndex;
}
int ManchesterConvertFrom1(const int * data, const size_t len, uint8_t * dataout, int clock, int startIndex){
int ManchesterConvertFrom1(const int * data, const size_t len, uint8_t * dataout,int dataoutlen, int clock, int startIndex){
PrintAndLog(" Path B");