X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9ca155ba443e8f2a9feb7640f4b461842cce9e35..refs/pull/245/head:/client/util.c?ds=sidebyside diff --git a/client/util.c b/client/util.c index c7764f70..7c70d55d 100644 --- a/client/util.c +++ b/client/util.c @@ -8,15 +8,26 @@ // utilities //----------------------------------------------------------------------------- -#include <stdio.h> -#include <stdlib.h> +#if !defined(_WIN32) +#define _POSIX_C_SOURCE 199309L // need nanosleep() +#endif + +#include "util.h" + +#include <stdint.h> #include <string.h> #include <ctype.h> -#include "util.h" +#include <stdlib.h> +#include <stdio.h> +#include <time.h> +#include "data.h" + +#define MAX_BIN_BREAK_LENGTH (3072+384+1) -#ifdef __linux__ +#ifndef _WIN32 #include <termios.h> #include <sys/ioctl.h> + int ukbhit(void) { int cnt = 0; @@ -24,7 +35,7 @@ int ukbhit(void) static struct termios Otty, Ntty; - tcgetattr( 0, &Otty); + if ( tcgetattr( 0, &Otty) == -1 ) return -1; Ntty = Otty; Ntty.c_iflag = 0; /* input mode */ @@ -42,12 +53,65 @@ int ukbhit(void) } #else + #include <conio.h> int ukbhit(void) { return kbhit(); } #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", (unsigned int) uid[j]); + sprintf(fnameptr, "%s", ext); +} + +// printing and converting functions void print_hex(const uint8_t * data, const size_t len) { @@ -59,17 +123,106 @@ void print_hex(const uint8_t * data, const size_t len) printf("\n"); } -char * sprint_hex(const uint8_t * data, const size_t len) { +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) { + + int maxLen = ( len > 1024/3) ? 1024/3 : len; static char buf[1024]; - char * tmp = buf; + memset(buf, 0x00, 1024); + 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 ", (unsigned int) data[i]); return buf; } +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-1; 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; +} + +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 > 1010) ? 1010 : len; + + sprintf(tmp, "%s| ", sprint_hex(data, max_len) ); + + size_t i = 0; + size_t pos = (max_len * 3)+2; + 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(const uint8_t *data, const size_t 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; + } + return buf; +} + void num_to_bytes(uint64_t n, size_t len, uint8_t* dest) { while (len--) { @@ -89,6 +242,79 @@ 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); + 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; +} + +// 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) +{ + 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", (unsigned int)byte); + tmp++; + } + } + return buf; +} + // ------------------------------------------------------------------------- // string parameters lib // ------------------------------------------------------------------------- @@ -127,6 +353,7 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum) return 0; } + char param_getchar(const char *line, int paramnum) { int bg, en; @@ -138,7 +365,36 @@ char param_getchar(const char *line, int paramnum) 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) @@ -146,7 +402,7 @@ 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; } @@ -156,7 +412,7 @@ 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; } @@ -166,11 +422,9 @@ uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base) int bg, en; if (!param_getptr(line, &bg, &en, paramnum)) - return strtol(&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) @@ -194,3 +448,202 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt) return 0; } +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; + + *hexcnt = en - bg + 1; + if (*hexcnt % 2) //error if not complete hex bytes + return 1; + + for(i = 0; i < *hexcnt; i += 2) { + if (!(isxdigit(line[bg + i]) && isxdigit(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_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", (unsigned int)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( 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; +} + +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 +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] = '.'; + } +} + + +// Timer functions +#if !defined (_WIN32) +#include <errno.h> + +static void nsleep(uint64_t n) { + struct timespec timeout; + timeout.tv_sec = n/1000000000; + timeout.tv_nsec = n%1000000000; + while (nanosleep(&timeout, &timeout) && errno == EINTR); +} + +void msleep(uint32_t n) { + nsleep(1000000 * n); +} + +#endif // _WIN32 + +// a milliseconds timer for performance measurement +uint64_t msclock() { +#if defined(_WIN32) +#include <sys/types.h> + struct _timeb t; + if (_ftime_s(&t)) { + return 0; + } else { + return 1000 * t.time + t.millitm; + } +#else + struct timespec t; + clock_gettime(CLOCK_MONOTONIC, &t); + return (t.tv_sec * 1000 + t.tv_nsec / 1000000); +#endif +}