X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/01d7272d5bf2f07752d0fd79e95ac28dfaf6cb1b..7b215d149ac4fd5709635111d86a2062fc7ac3ad:/client/util.c?ds=inline diff --git a/client/util.c b/client/util.c index 9b99cdf1..bbc7f2cf 100644 --- a/client/util.c +++ b/client/util.c @@ -9,12 +9,25 @@ //----------------------------------------------------------------------------- #include "util.h" + +#include +#include +#include +#include +#include +#include +#include "data.h" + +#ifdef _WIN32 +#include +#endif + #define MAX_BIN_BREAK_LENGTH (3072+384+1) #ifndef _WIN32 #include #include - +#include int ukbhit(void) { @@ -22,25 +35,25 @@ int ukbhit(void) int error; static struct termios Otty, Ntty; - - if ( tcgetattr( 0, &Otty) == -1 ) return -1; + 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 int ukbhit(void) { return kbhit(); @@ -98,6 +111,31 @@ void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) sprintf(fnameptr, "%s", ext); } +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; + + 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 void print_hex(const uint8_t * data, const size_t len) @@ -110,20 +148,43 @@ void print_hex(const uint8_t * data, const size_t len) printf("\n"); } +void print_hex_break(const uint8_t *data, const size_t len, uint8_t breaks) { + + int rownum = 0; + printf("[%02d] | ", rownum); + for (int i = 0; i < len; ++i) { + + printf("%02X ", data[i]); + + // check if a line break is needed + if ( breaks > 0 && !((i+1) % breaks) && (i+1 < len) ) { + ++rownum; + printf("\n[%02d] | ", rownum); + } + } + printf("\n"); +} + char *sprint_hex(const uint8_t *data, const size_t len) { + static char buf[1025] = {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; +} - for (i=0; i < maxLen; ++i, tmp += 3) - sprintf(tmp, "%02x ", (unsigned int) data[i]); +char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) { + static char buf[1025] = {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; @@ -144,7 +205,7 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea 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) ) { + if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 < max_len) ) { // increment and print line break out_index++; sprintf(tmp++, "%s","\n"); @@ -158,6 +219,51 @@ 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_hex_ascii(const uint8_t *data, const size_t len) { + static char buf[1024]; + char *tmp = buf; + memset(buf, 0x00, 1024); + size_t max_len = (len > 255) ? 255 : len; + // max 255 bytes * 3 + 2 characters = 767 in buffer + sprintf(tmp, "%s| ", sprint_hex(data, max_len) ); + + size_t i = 0; + size_t pos = (max_len * 3)+2; + // add another 255 characters ascii = 1020 characters of buffer used + while(i < max_len) { + char c = data[i]; + if ( (c < 32) || (c == 127)) + c = '.'; + sprintf(tmp+pos+i, "%c", c); + ++i; + } + return buf; +} + +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--) { @@ -184,6 +290,24 @@ void num_to_bytebits(uint64_t n, size_t len, uint8_t *dest) { } } +//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 @@ -200,6 +324,16 @@ uint8_t *SwapEndian64(const uint8_t *src, const size_t len, const uint8_t blockS return tmp; } +// takes a uint8_t src array, for len items and reverses the byte order in blocksizes (8,16,32,64), +// returns: the dest array contains the reordered src array. +void SwapEndian64ex(const uint8_t *src, const size_t len, const uint8_t blockSize, uint8_t *dest){ + for (uint8_t block=0; block < (uint8_t)(len/blockSize); block++){ + for (size_t i = 0; i < blockSize; i++){ + dest[i+(blockSize*block)] = src[(blockSize-1-i)+(blockSize*block)]; + } + } +} + //assumes little endian char * printBits(size_t const size, void const * const ptr) { @@ -222,13 +356,30 @@ char * printBits(size_t const size, void const * const ptr) 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) @@ -261,13 +412,28 @@ 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) @@ -332,8 +498,6 @@ 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) @@ -349,7 +513,7 @@ 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; @@ -371,7 +535,7 @@ 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; @@ -379,11 +543,66 @@ 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; @@ -401,6 +620,7 @@ 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); @@ -416,8 +636,10 @@ 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; @@ -490,6 +712,7 @@ void wiegand_add_parity(uint8_t *target, uint8_t *source, uint8_t 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; @@ -498,6 +721,9 @@ void xor(unsigned char *dst, unsigned char *src, size_t len) { int32_t le24toh (uint8_t data[3]) { return (data[2] << 16) | (data[1] << 8) | data[0]; } +uint32_t le32toh (uint8_t *data) { + return (uint32_t)( (data[3]<<24) | (data[2]<<16) | (data[1]<<8) | data[0]); +} // RotateLeft - Ultralight, Desfire, works on byte level // 00-01-02 >> 01-02-00 @@ -508,3 +734,53 @@ void rol(uint8_t *data, const size_t len){ } 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 +} +