X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/be6250d31b5cc1ebb9ab0bece84c6691220a8e0d..0d2624a0cc13dbe34392da1f8495af6c64a84ddb:/client/util.c?ds=inline diff --git a/client/util.c b/client/util.c index 5e9fce85..dec7c5a1 100644 --- a/client/util.c +++ b/client/util.c @@ -10,9 +10,24 @@ #include "util.h" +#include <stdint.h> +#include <string.h> +#include <ctype.h> +#include <stdlib.h> +#include <stdio.h> +#include <time.h> +#include <stdarg.h> + +#ifdef _WIN32 +#include <windows.h> +#endif + +#define MAX_BIN_BREAK_LENGTH (3072+384+1) + #ifndef _WIN32 #include <termios.h> #include <sys/ioctl.h> +#include <unistd.h> int ukbhit(void) { @@ -20,25 +35,25 @@ int ukbhit(void) int error; static struct termios Otty, Ntty; - - tcgetattr( 0, &Otty); + if ( tcgetattr(STDIN_FILENO, &Otty) == -1 ) return -1; Ntty = Otty; - Ntty.c_iflag = 0; /* input mode */ - Ntty.c_oflag = 0; /* output mode */ - Ntty.c_lflag &= ~ICANON; /* raw mode */ - Ntty.c_cc[VMIN] = CMIN; /* minimum time to wait */ - Ntty.c_cc[VTIME] = CTIME; /* minimum characters to wait for */ - - if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) { - error += ioctl(0, FIONREAD, &cnt); - error += tcsetattr(0, TCSANOW, &Otty); + Ntty.c_iflag = 0x0000; // input mode + Ntty.c_oflag = 0x0000; // output mode + Ntty.c_lflag &= ~ICANON; // control mode = raw + Ntty.c_cc[VMIN] = 1; // return if at least 1 character is in the queue + Ntty.c_cc[VTIME] = 0; // no timeout. Wait forever + + if (0 == (error = tcsetattr(STDIN_FILENO, TCSANOW, &Ntty))) { // set new attributes + error += ioctl(STDIN_FILENO, FIONREAD, &cnt); // get number of characters availabe + error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes } return ( error == 0 ? cnt : -1 ); } #else + #include <conio.h> int ukbhit(void) { return kbhit(); @@ -92,47 +107,124 @@ void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) memset(fileName, 0x00, 200); for (int j = 0; j < byteCount; j++, fnameptr += 2) - sprintf(fnameptr, "%02x", uid[j]); + sprintf(fnameptr, "%02x", (unsigned int) uid[j]); sprintf(fnameptr, "%s", ext); } -// printing and converting functions +// fill buffer from structure [{uint8_t data, size_t length},...] +int FillBuffer(uint8_t *data, size_t maxDataLength, size_t *dataLength, ...) { + *dataLength = 0; + va_list valist; + va_start(valist, dataLength); + + uint8_t *vdata = NULL; + size_t vlength = 0; + do{ + vdata = va_arg(valist, uint8_t *); + if (!vdata) + break; + + vlength = va_arg(valist, size_t); + if (*dataLength + vlength > maxDataLength) { + va_end(valist); + return 1; + } + + memcpy(&data[*dataLength], vdata, vlength); + *dataLength += vlength; + + } while (vdata); + + va_end(valist); -void print_hex(const uint8_t * data, const size_t len) -{ + return 0; +} + +bool CheckStringIsHEXValue(const char *value) { + for (int i = 0; i < strlen(value); i++) + if (!isxdigit(value[i])) + return false; + + if (strlen(value) % 2) + return false; + + return true; +} + +void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex_len, const size_t hex_max_len, + const size_t min_str_len, const size_t spaces_between, bool uppercase) { + + char *tmp = (char *)buf; size_t i; + memset(tmp, 0x00, hex_max_len); - for (i=0; i < len; i++) - printf("%02x ", data[i]); + int maxLen = ( hex_len > hex_max_len) ? hex_max_len : hex_len; + + for (i = 0; i < maxLen; ++i, tmp += 2 + spaces_between) { + sprintf(tmp, (uppercase) ? "%02X" : "%02x", (unsigned int) hex_data[i]); + + for (int j = 0; j < spaces_between; j++) + sprintf(tmp + 2 + j, " "); + } + + i *= (2 + spaces_between); + int minStrLen = min_str_len > i ? min_str_len : 0; + if (minStrLen > hex_max_len) + minStrLen = hex_max_len; + for(; i < minStrLen; i++, tmp += 1) + sprintf(tmp, " "); - printf("\n"); + return; } +// printing and converting functions + char *sprint_hex(const uint8_t *data, const size_t len) { + static char buf[4097] = {0}; - int maxLen = ( len > 1024/3) ? 1024/3 : len; - static char buf[1024]; - memset(buf, 0x00, 1024); - char *tmp = buf; - size_t i; + hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, 0, 1, false); + + return buf; +} + +char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) { + static char buf[4097] = {0}; - for (i=0; i < maxLen; ++i, tmp += 3) - sprintf(tmp, "%02x ", data[i]); + hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, min_str_len, 0, false); return buf; } +char *sprint_hex_inrow(const uint8_t *data, const size_t len) { + return sprint_hex_inrow_ex(data, len, 0); +} + 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); + // make sure we don't go beyond our char array memory + int max_len; + if (breaks==0) + max_len = ( len > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len; + else + max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks); + + static char buf[MAX_BIN_BREAK_LENGTH]; // 3072 + end of line characters if broken at 8 bits + //clear memory + memset(buf, 0x00, sizeof(buf)); char *tmp = buf; - for (size_t i=0; i < maxLen; ++i){ - sprintf(tmp++, "%u", data[i]); - if (breaks > 0 && !((i+1) % breaks)) + size_t in_index = 0; + // loop through the out_index to make sure we don't go too far + for (size_t out_index=0; out_index < max_len; out_index++) { + // set character - (should be binary but verify it isn't more than 1 digit) + if (data[in_index]<10) + sprintf(tmp++, "%u", (unsigned int) data[in_index]); + // check if a line break is needed and we have room to print it in our array + if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 < max_len) ) { + // increment and print line break + out_index++; sprintf(tmp++, "%s","\n"); + } + in_index++; } return buf; @@ -141,6 +233,26 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea char *sprint_bin(const uint8_t *data, const size_t len) { return sprint_bin_break(data, len, 0); } + +char *sprint_ascii_ex(const uint8_t *data, const size_t len, const size_t min_str_len) { + static char buf[1024]; + char *tmp = buf; + memset(buf, 0x00, 1024); + size_t max_len = (len > 1010) ? 1010 : len; + size_t i = 0; + while(i < max_len){ + char c = data[i]; + tmp[i] = ((c < 32) || (c == 127)) ? '.' : c; + ++i; + } + + int minStrLen = min_str_len > i ? min_str_len : 0; + for(; i < minStrLen; ++i) + tmp[i] = ' '; + + return buf; +} + void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { @@ -160,6 +272,31 @@ uint64_t bytes_to_num(uint8_t* src, size_t len) return num; } +void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { + while (len--) { + dest[len] = n & 1; + n >>= 1; + } +} + +//least significant bit first +void num_to_bytebitsLSBF(uint64_t n, size_t len, uint8_t *dest) { + for(int i = 0 ; i < len ; ++i) { + dest[i] = n & 1; + n >>= 1; + } +} + +// Swap bit order on a uint32_t value. Can be limited by nrbits just use say 8bits reversal +// And clears the rest of the bits. +uint32_t SwapBits(uint32_t value, int nrbits) { + uint32_t newvalue = 0; + for(int i = 0; i < nrbits; i++) { + newvalue ^= ((value >> i) & 1) << (nrbits - 1 - i); + } + return newvalue; +} + // 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 @@ -191,20 +328,37 @@ char * printBits(size_t const size, void const * const ptr) { byte = b[i] & (1<<j); byte >>= j; - sprintf(tmp, "%u", byte); + sprintf(tmp, "%u", (unsigned int)byte); tmp++; } } return buf; } +char * printBitsPar(const uint8_t *b, size_t len) { + static char buf1[512] = {0}; + static char buf2[512] = {0}; + static char *buf; + if (buf != buf1) + buf = buf1; + else + buf = buf2; + memset(buf, 0x00, 512); + + for (int i = 0; i < len; i++) { + buf[i] = ((b[i / 8] << (i % 8)) & 0x80) ? '1':'0'; + } + return buf; +} + + // ------------------------------------------------------------------------- // string parameters lib // ------------------------------------------------------------------------- // ------------------------------------------------------------------------- // line - param line -// bg, en - symbol numbers in param line of beginning an ending parameter +// bg, en - symbol numbers in param line of beginning and ending parameter // paramnum - param number (from 0) // ------------------------------------------------------------------------- int param_getptr(const char *line, int *bg, int *en, int paramnum) @@ -237,18 +391,33 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) } -char param_getchar(const char *line, int paramnum) +int param_getlength(const char *line, int paramnum) { int bg, en; + if (param_getptr(line, &bg, &en, paramnum)) return 0; + + return en - bg + 1; +} + +char param_getchar(const char *line, int paramnum) { + return param_getchar_indx(line, 0, paramnum); +} + +char param_getchar_indx(const char *line, int indx, int paramnum) { + int bg, en; + if (param_getptr(line, &bg, &en, paramnum)) return 0x00; - return line[bg]; + if (bg + indx > en) + return '\0'; + + return line[bg + indx]; } uint8_t param_get8(const char *line, int paramnum) { - return param_get8ex(line, paramnum, 10, 0); + return param_get8ex(line, paramnum, 0, 10); } /** @@ -308,8 +477,6 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) return strtoull(&line[bg], NULL, base); else return deflt; - - return 0; } int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) @@ -325,7 +492,7 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) return 1; for(i = 0; i < hexcnt; i += 2) { - if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; + if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) ) return 1; sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); data[i / 2] = temp & 0xff; @@ -347,7 +514,7 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) return 1; for(i = 0; i < *hexcnt; i += 2) { - if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) ) return 1; + if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) ) return 1; sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp); data[i / 2] = temp & 0xff; @@ -355,11 +522,66 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt) return 0; } -int param_getstr(const char *line, int paramnum, char * str) + +int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxdatalen, int *datalen) { + int bg, en; + uint32_t temp; + char buf[5] = {0}; + + if (param_getptr(line, &bg, &en, paramnum)) return 1; + + *datalen = 0; + + int indx = bg; + while (line[indx]) { + if (line[indx] == '\t' || line[indx] == ' ') { + indx++; + continue; + } + + if (isxdigit((unsigned char)line[indx])) { + buf[strlen(buf) + 1] = 0x00; + buf[strlen(buf)] = line[indx]; + } else { + // if we have symbols other than spaces and hex + return 1; + } + + if (*datalen >= maxdatalen) { + // if we dont have space in buffer and have symbols to translate + return 2; + } + + if (strlen(buf) >= 2) { + sscanf(buf, "%x", &temp); + data[*datalen] = (uint8_t)(temp & 0xff); + *buf = 0; + (*datalen)++; + } + + indx++; + } + + if (strlen(buf) > 0) + //error when not completed hex bytes + return 3; + + return 0; +} + +int param_getstr(const char *line, int paramnum, char * str, size_t buffersize) { int bg, en; - if (param_getptr(line, &bg, &en, paramnum)) return 0; + if (param_getptr(line, &bg, &en, paramnum)) { + return 0; + } + + // Prevent out of bounds errors + if (en - bg + 1 >= buffersize) { + printf("out of bounds error: want %d bytes have %zd bytes\n", en - bg + 1 + 1, buffersize); + return 0; + } memcpy(str, line + bg, en - bg + 1); str[en - bg + 1] = 0; @@ -377,6 +599,7 @@ https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/ int hextobinarray(char *target, char *source) { int length, i, count= 0; + char* start = source; char x; length = strlen(source); @@ -392,8 +615,10 @@ int hextobinarray(char *target, char *source) x -= '0'; else if (x >= 'A' && x <= 'F') x -= 'A' - 10; - else + else { + printf("Discovered unknown character %c %d at idx %tu of %s\n", x, x, source - start, start); return 0; + } // output for(i= 0 ; i < 4 ; ++i, ++count) *(target++)= (x >> (3 - i)) & 1; @@ -402,17 +627,6 @@ int hextobinarray(char *target, char *source) 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) @@ -427,7 +641,7 @@ int binarraytohex(char *target,char *source, int length) { for(i= x= 0 ; i < 4 ; ++i) x += ( source[i] << (3 - i)); - sprintf(target,"%X", x); + sprintf(target,"%X", (unsigned int)x); ++target; source += 4; j -= 4; @@ -435,18 +649,8 @@ int binarraytohex(char *target,char *source, int length) 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) +uint8_t GetParity( uint8_t *bits, uint8_t type, int length) { int x; @@ -458,7 +662,7 @@ uint8_t GetParity( char *bits, uint8_t type, int length) } // 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) +void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t length) { *(target++)= GetParity(source, EVEN, length / 2); memcpy(target, source, length); @@ -466,11 +670,68 @@ void wiegand_add_parity(char *target, char *source, char length) *(target)= GetParity(source + length / 2, ODD, length / 2); } +// xor two arrays together for len items. The dst array contains the new xored values. 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]; +// RotateLeft - Ultralight, Desfire, works on byte level +// 00-01-02 >> 01-02-00 +void rol(uint8_t *data, const size_t len){ + uint8_t first = data[0]; + for (size_t i = 0; i < len-1; i++) { + data[i] = data[i+1]; + } + data[len-1] = first; +} + + +// Replace unprintable characters with a dot in char buffer +void clean_ascii(unsigned char *buf, size_t len) { + for (size_t i = 0; i < len; i++) { + if (!isprint(buf[i])) + buf[i] = '.'; + } } + +// replace \r \n to \0 +void strcleanrn(char *buf, size_t len) { + strcreplace(buf, len, '\n', '\0'); + strcreplace(buf, len, '\r', '\0'); +} + +// replace char in buffer +void strcreplace(char *buf, size_t len, char from, char to) { + for (size_t i = 0; i < len; i++) { + if (buf[i] == from) + buf[i] = to; + } +} + +char *strmcopy(char *buf) { + char * str = NULL; + if ((str = (char*) malloc(strlen(buf) + 1)) != NULL) { + memset(str, 0, strlen(buf) + 1); + strcpy(str, buf); + } + return str; +} + + +// determine number of logical CPU cores (use for multithreaded functions) +extern int num_CPUs(void) +{ +#if defined(_WIN32) + #include <sysinfoapi.h> + SYSTEM_INFO sysinfo; + GetSystemInfo(&sysinfo); + return sysinfo.dwNumberOfProcessors; +#elif defined(__linux__) || defined(__APPLE__) + #include <unistd.h> + return sysconf(_SC_NPROCESSORS_ONLN); +#else + return 1; +#endif +} +