X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0ce5620254d53745397f06b349f7c4d35c1f41d8..refs/pull/111/head:/armsrc/util.c?ds=inline diff --git a/armsrc/util.c b/armsrc/util.c index 5b68f513..74fba94b 100644 --- a/armsrc/util.c +++ b/armsrc/util.c @@ -12,9 +12,30 @@ #include "util.h" #include "string.h" #include "apps.h" +#include "BigBuf.h" + + + +void print_result(char *name, uint8_t *buf, size_t len) { + uint8_t *p = buf; + + if ( len % 16 == 0 ) { + for(; p-buf < len; p += 16) + Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x", + name, + p-buf, + len, + p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15] + ); + } + else { + for(; p-buf < len; p += 8) + Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x", name, p-buf, len, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); + } +} size_t nbytes(size_t nbits) { - return (nbits/8)+((nbits%8)>0); + return (nbits >> 3)+((nbits % 8) > 0); } uint32_t SwapBits(uint32_t value, int nrbits) { @@ -45,6 +66,26 @@ uint64_t bytes_to_num(uint8_t* src, size_t len) return num; } +// RotateLeft - Ultralight, Desfire +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; +} +void lsl (uint8_t *data, size_t len) { + for (size_t n = 0; n < len - 1; n++) { + data[n] = (data[n] << 1) | (data[n+1] >> 7); + } + data[len - 1] <<= 1; +} + +int32_t le24toh (uint8_t data[3]) +{ + return (data[2] << 16) | (data[1] << 8) | data[0]; +} + void LEDsoff() { LED_A_OFF(); @@ -388,4 +429,3 @@ uint32_t RAMFUNC GetCountSspClk(){ } } -