CHG: trying to get the askdemod / biphasedeocde / finding startmarker / removeparity...

[proxmark3-svn] / client / util.c

diff --git a/client/util.c b/client/util.c
index 6825d721d4622d9f383f79a6ac6ebe21984c2fea..30547080b7714b6ac02f1ccd830116186c4f0c4a 100644 (file)
--- a/client/util.c
+++ b/client/util.c
@@ -8,15 +8,12 @@
 // utilities
 //-----------------------------------------------------------------------------
 
 // utilities
 //-----------------------------------------------------------------------------
 

-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>

 #include "util.h"
 
 #include "util.h"
 

-#ifdef __linux__
+#ifndef _WIN32

 #include <termios.h>
 #include <sys/ioctl.h> 
 #include <termios.h>
 #include <sys/ioctl.h> 

+

 int ukbhit(void)
 {
   int cnt = 0;
 int ukbhit(void)
 {
   int cnt = 0;


@@ -48,6 +45,58 @@ int ukbhit(void) {
 }
 #endif
 
 }
 #endif
 

+// log files functions
+void AddLogLine(char *file, char *extData, char *c) {
+       FILE *fLog = NULL;
+    char filename[FILE_PATH_SIZE] = {0x00};
+    int len = 0;
+
+    len = strlen(file);
+    if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+    memcpy(filename, file, len);
+   
+       fLog = fopen(filename, "a");
+       if (!fLog) {
+               printf("Could not append log file %s", filename);
+               return;
+       }
+
+       fprintf(fLog, "%s", extData);
+       fprintf(fLog, "%s\n", c);
+       fclose(fLog);
+}
+
+void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){
+       AddLogLine(fileName, extData, sprint_hex(data, len));
+}
+
+void AddLogUint64(char *fileName, char *extData, const uint64_t data) {
+  char buf[100] = {0};
+       sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF));
+       AddLogLine(fileName, extData, buf);
+}
+
+void AddLogCurrentDT(char *fileName) {
+       char buff[20];
+       struct tm *curTime;
+
+       time_t now = time(0);
+       curTime = gmtime(&now);
+
+       strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime);
+       AddLogLine(fileName, "\nanticollision: ", buff);
+}
+
+void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) {
+       char * fnameptr = fileName;
+       memset(fileName, 0x00, 200);
+       
+       for (int j = 0; j < byteCount; j++, fnameptr += 2)
+               sprintf(fnameptr, "%02x", uid[j]); 
+       sprintf(fnameptr, "%s", ext); 
+}
+
+// printing and converting functions

 
 void print_hex(const uint8_t * data, const size_t len)
 {
 
 void print_hex(const uint8_t * data, const size_t len)
 {


@@ -59,17 +108,39 @@ void print_hex(const uint8_t * data, const size_t len)
        printf("\n");
 }
 
        printf("\n");
 }
 

-char * sprint_hex(const uint8_t * data, const size_t len) {
+char *sprint_hex(const uint8_t *data, const size_t len) {
+       
+       int maxLen = ( len > 1024/3) ? 1024/3 : len;

        static char buf[1024];
        static char buf[1024];

+       memset(buf, 0x00, 1024);

        char * tmp = buf;
        size_t i;
 
        char * tmp = buf;
        size_t i;
 

-       for (i=0; i < len && i < 1024/3; i++, tmp += 3)
-               sprintf(tmp, "%02x ", data[i]);
+       for (i=0; i < maxLen; ++i, tmp += 3)
+               sprintf(tmp, "%02X ", data[i]);

 
        return buf;
 }
 
 
        return buf;
 }
 

+char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) {
+       
+       int maxLen = ( len > 1020) ? 1020 : len;
+       static char buf[1024];
+       memset(buf, 0x00, 1024);
+       char *tmp = buf;
+
+       for (size_t i=0; i < maxLen; ++i){
+               sprintf(tmp++, "%u", data[i]);
+               if (breaks > 0 && !((i+1) % breaks))
+                       sprintf(tmp++, "%s","\n");
+       }
+
+       return buf;
+}
+
+char *sprint_bin(const uint8_t *data, const size_t len) {
+       return sprint_bin_break(data, len, 0);
+}

 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
        while (len--) {
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
        while (len--) {


@@ -89,6 +160,48 @@ uint64_t bytes_to_num(uint8_t* src, size_t len)
        return num;
 }
 
        return num;
 }
 

+// aa,bb,cc,dd,ee,ff,gg,hh, ii,jj,kk,ll,mm,nn,oo,pp
+// to
+// hh,gg,ff,ee,dd,cc,bb,aa, pp,oo,nn,mm,ll,kk,jj,ii
+// up to 64 bytes or 512 bits
+uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockSize){
+       static uint8_t buf[64];
+       memset(buf, 0x00, 64);
+       uint8_t *tmp = buf;
+       for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){
+               for (size_t i = 0; i < blockSize; i++){
+                       tmp[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)];
+               }
+       }
+       return tmp;
+}
+
+//assumes little endian
+char * printBits(size_t const size, void const * const ptr)
+{
+    unsigned char *b = (unsigned char*) ptr;   
+    unsigned char byte;
+       static char buf[1024];
+       char * tmp = buf;
+    int i, j;
+
+    for (i=size-1;i>=0;i--)
+    {
+        for (j=7;j>=0;j--)
+        {
+            byte = b[i] & (1<<j);
+            byte >>= j;
+            sprintf(tmp, "%u", byte);
+                       tmp++;
+        }
+    }
+       return buf;
+}
+
+//  -------------------------------------------------------------------------
+//  string parameters lib
+//  -------------------------------------------------------------------------
+

 //  -------------------------------------------------------------------------
 //  line     - param line
 //  bg, en   - symbol numbers in param line of beginning an ending parameter
 //  -------------------------------------------------------------------------
 //  line     - param line
 //  bg, en   - symbol numbers in param line of beginning an ending parameter


@@ -123,6 +236,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
        return 0;
 }
 
        return 0;
 }
 

+

 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;
 char param_getchar(const char *line, int paramnum)
 {
        int bg, en;


@@ -137,12 +251,41 @@ uint8_t param_get8(const char *line, int paramnum)
        return param_get8ex(line, paramnum, 10, 0);
 }
 
        return param_get8ex(line, paramnum, 10, 0);
 }
 

+/**
+ * @brief Reads a decimal integer (actually, 0-254, not 255)
+ * @param line
+ * @param paramnum
+ * @return -1 if error
+ */
+uint8_t param_getdec(const char *line, int paramnum, uint8_t *destination)
+{
+       uint8_t val =  param_get8ex(line, paramnum, 255, 10);
+       if( (int8_t) val == -1) return 1;
+       (*destination) = val;
+       return 0;
+}
+/**
+ * @brief Checks if param is decimal
+ * @param line
+ * @param paramnum
+ * @return
+ */
+uint8_t param_isdec(const char *line, int paramnum)
+{
+       int bg, en;
+       //TODO, check more thorougly
+       if (!param_getptr(line, &bg, &en, paramnum)) return 1;
+               //              return strtoul(&line[bg], NULL, 10) & 0xff;
+
+       return 0;
+}
+

 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
 {
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 
 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
 {
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 

-               return strtol(&line[bg], NULL, base) & 0xff;
+               return strtoul(&line[bg], NULL, base) & 0xff;

        else
                return deflt;
 }
        else
                return deflt;
 }


@@ -152,7 +295,7 @@ uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base)
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 

-               return strtol(&line[bg], NULL, base);
+               return strtoul(&line[bg], NULL, base);

        else
                return deflt;
 }
        else
                return deflt;
 }


@@ -162,7 +305,7 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 
        int bg, en;
 
        if (!param_getptr(line, &bg, &en, paramnum)) 

-               return strtol(&line[bg], NULL, base);
+               return strtoull(&line[bg], NULL, base);

        else
                return deflt;
 
        else
                return deflt;
 


@@ -190,3 +333,123 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 
        return 0;
 }
 
        return 0;
 }

+
+int param_getstr(const char *line, int paramnum, char * str)
+{
+       int bg, en;
+
+       if (param_getptr(line, &bg, &en, paramnum)) return 0;
+       
+       memcpy(str, line + bg, en - bg + 1);
+       str[en - bg + 1] = 0;
+       
+       return en - bg + 1;
+}
+
+/*
+The following methods comes from Rfidler sourcecode.
+https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/src/
+*/
+
+// convert hex to sequence of 0/1 bit values
+// returns number of bits converted
+int hextobinarray(char *target, char *source)
+{
+    int length, i, count= 0;
+    char x;
+
+    length = strlen(source);
+    // process 4 bits (1 hex digit) at a time
+    while(length--)
+    {
+        x= *(source++);
+        // capitalize
+        if (x >= 'a' && x <= 'f')
+            x -= 32;
+        // convert to numeric value
+        if (x >= '0' && x <= '9')
+            x -= '0';
+        else if (x >= 'A' && x <= 'F')
+            x -= 'A' - 10;
+        else
+            return 0;
+        // output
+        for(i= 0 ; i < 4 ; ++i, ++count)
+            *(target++)= (x >> (3 - i)) & 1;
+    }
+    
+    return count;
+}
+
+// convert hex to human readable binary string
+int hextobinstring(char *target, char *source)
+{
+    int length;
+
+    if(!(length= hextobinarray(target, source)))
+        return 0;
+    binarraytobinstring(target, target, length);
+    return length;
+}
+
+// convert binary array of 0x00/0x01 values to hex (safe to do in place as target will always be shorter than source)
+// return number of bits converted
+int binarraytohex(char *target, char *source, int length)
+{
+    unsigned char i, x;
+    int j = length;
+
+    if(j % 4)
+        return 0;
+
+    while(j)
+    {
+        for(i= x= 0 ; i < 4 ; ++i)
+            x +=  ( source[i] << (3 - i));
+        sprintf(target,"%X", x);
+        ++target;
+        source += 4;
+        j -= 4;
+    }
+    return length;
+}
+
+// convert binary array to human readable binary
+void binarraytobinstring(char *target, char *source,  int length)
+{
+    int i;
+
+    for(i= 0 ; i < length ; ++i)
+        *(target++)= *(source++) + '0';
+    *target= '\0';
+}
+
+// return parity bit required to match type
+uint8_t GetParity( char *bits, uint8_t type, int length)
+{
+    int x;
+
+    for(x= 0 ; length > 0 ; --length)
+        x += bits[length - 1];
+    x %= 2;
+
+    return x ^ type;
+}
+
+// add HID parity to binary array: EVEN prefix for 1st half of ID, ODD suffix for 2nd half
+void wiegand_add_parity(char *target, char *source, char length)
+{
+    *(target++)= GetParity(source, EVEN, length / 2);
+    memcpy(target, source, length);
+    target += length;
+    *(target)= GetParity(source + length / 2, ODD, length / 2);
+}
+
+void xor(unsigned char * dst, unsigned char * src, size_t len) {
+   for( ; len > 0; len--,dst++,src++)
+       *dst ^= *src;
+}
+
+int32_t le24toh (uint8_t data[3]) {
+    return (data[2] << 16) | (data[1] << 8) | data[0];
+}