X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e0c635d19c58423d88ae698788a31c865e5554ab..347efc12741e72e6ce3a3c4f3ed554fae0cefc73:/client/util.c?ds=sidebyside diff --git a/client/util.c b/client/util.c index 0673f181..cd18fc00 100644 --- a/client/util.c +++ b/client/util.c @@ -10,34 +10,65 @@ #include "util.h" -#ifndef WIN32 +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#include +#endif + +#define MAX_BIN_BREAK_LENGTH (3072+384+1) + +#ifndef _WIN32 #include #include +#include + int ukbhit(void) { int cnt = 0; 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 +char getch(void) +{ + char c; + int error; + struct termios Otty, Ntty; + if ( tcgetattr(STDIN_FILENO, &Otty) == -1 ) return -1; + Ntty = Otty; + Ntty.c_lflag &= ~ICANON; /* disable buffered i/o */ + if (0 == (error = tcsetattr(STDIN_FILENO, TCSANOW, &Ntty))) { // set new attributes + c = getchar(); + error += tcsetattr(STDIN_FILENO, TCSANOW, &Otty); // reset attributes + } + return ( error == 0 ? c : -1 ); +} + +#else // _WIN32 + #include int ukbhit(void) { return kbhit(); @@ -45,12 +76,18 @@ int ukbhit(void) { #endif // log files functions -void AddLogLine(char *fileName, char *extData, char *c) { +void AddLogLine(char *file, char *extData, char *c) { FILE *fLog = NULL; - - fLog = fopen(fileName, "a"); + 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); + printf("Could not append log file %s", filename); return; } @@ -80,38 +117,160 @@ void AddLogCurrentDT(char *fileName) { AddLogLine(fileName, "\nanticollision: ", buff); } -void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) { +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, "%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) -{ - size_t i; + return 0; +} - for (i=0; i < len; i++) - printf("%02x ", data[i]); +bool CheckStringIsHEXValue(const char *value) { + for (int i = 0; i < strlen(value); i++) + if (!isxdigit(value[i])) + return false; - printf("\n"); + if (strlen(value) % 2) + return false; + + return true; } -char * sprint_hex(const uint8_t * data, const size_t len) { - static char buf[1024]; - char * tmp = buf; +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); + + 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, " "); + + return; +} + +// printing and converting functions + +char *sprint_hex(const uint8_t *data, const size_t len) { + static char buf[4097] = {0}; + + 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}; + + 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) { + // 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; + + 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; +} - for (i=0; i < len && i < 1024/3; i++, tmp += 3) - sprintf(tmp, "%02x ", data[i]); +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; } +char *sprint_ascii(const uint8_t *data, const size_t len) { + return sprint_ascii_ex(data, len, 0); +} + void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { @@ -131,13 +290,92 @@ 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 +// 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); + for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ + for (size_t i = 0; i < blockSize; i++){ + buf[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; + } + } + return buf; +} + +//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; + 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) @@ -169,18 +407,63 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) return 0; } -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); +} + +/** + * @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) @@ -188,7 +471,7 @@ 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; } @@ -198,7 +481,7 @@ uint32_t param_get32ex(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); + return strtoul(&line[bg], NULL, base); else return deflt; } @@ -208,11 +491,9 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) int bg, en; if (!param_getptr(line, &bg, &en, paramnum)) - return strtoll(&line[bg], NULL, 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) @@ -228,7 +509,7 @@ 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; @@ -237,14 +518,240 @@ int param_gethex(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_ex(const char *line, int paramnum, uint8_t *data, int *hexcnt) { + int bg, en, temp, i; + + //if (hexcnt % 2) + // return 1; + + if (param_getptr(line, &bg, &en, paramnum)) return 1; + + if (en - bg + 1 > *hexcnt) return 1; + + *hexcnt = en - bg + 1; + if (*hexcnt % 2) //error if not complete hex bytes + return 1; + + for(i = 0; i < *hexcnt; i += 2) { + 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; + } + + return 0; +} + +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 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; + } + + // 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; 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* start = source; + 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 { + 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; + } + + return count; +} + +// 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", (unsigned int)x); + ++target; + source += 4; + j -= 4; + } + return length; +} + +// return parity bit required to match type +uint8_t GetParity( uint8_t *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(uint8_t *target, uint8_t *source, uint8_t length) +{ + *(target++)= GetParity(source, EVEN, length / 2); + memcpy(target, source, length); + target += 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; +} + +// 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 + SYSTEM_INFO sysinfo; + GetSystemInfo(&sysinfo); + return sysinfo.dwNumberOfProcessors; +#elif defined(__linux__) || defined(__APPLE__) + #include + return sysconf(_SC_NPROCESSORS_ONLN); +#else + return 1; +#endif +} +