X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9e8255d4e99eb2917df13be92402e75a73417696..b7eddc14db9262a51ad3100ade7386d03500ace8:/armsrc/util.c?ds=inline diff --git a/armsrc/util.c b/armsrc/util.c index 38f41750..74fba94b 100644 --- a/armsrc/util.c +++ b/armsrc/util.c @@ -12,10 +12,8 @@ #include "util.h" #include "string.h" #include "apps.h" +#include "BigBuf.h" -uint8_t *trace = (uint8_t *) BigBuf+TRACE_OFFSET; -int traceLen = 0; -int tracing = TRUE; void print_result(char *name, uint8_t *buf, size_t len) { @@ -37,7 +35,7 @@ void print_result(char *name, uint8_t *buf, size_t len) { } 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) { @@ -430,85 +428,4 @@ uint32_t RAMFUNC GetCountSspClk(){ return tmp_count; } } -void iso14a_clear_trace() { - clear_trace(); -} - -void iso14a_set_tracing(bool enable) { - set_tracing(enable); -} - -void clear_trace() { - memset(trace, 0x44, TRACE_SIZE); - traceLen = 0; -} - -void set_tracing(bool enable) { - tracing = enable; -} - -/** - This is a function to store traces. All protocols can use this generic tracer-function. - The traces produced by calling this function can be fetched on the client-side - by 'hf list raw', alternatively 'hf list ' for protocol-specific - annotation of commands/responses. - -**/ -bool RAMFUNC LogTrace(const uint8_t *btBytes, uint16_t iLen, uint32_t timestamp_start, uint32_t timestamp_end, uint8_t *parity, bool readerToTag) -{ - if (!tracing) return FALSE; - - uint16_t num_paritybytes = (iLen-1)/8 + 1; // number of valid paritybytes in *parity - uint16_t duration = timestamp_end - timestamp_start; - - // Return when trace is full - if (traceLen + sizeof(iLen) + sizeof(timestamp_start) + sizeof(duration) + num_paritybytes + iLen >= TRACE_SIZE) { - tracing = FALSE; // don't trace any more - return FALSE; - } - // Traceformat: - // 32 bits timestamp (little endian) - // 16 bits duration (little endian) - // 16 bits data length (little endian, Highest Bit used as readerToTag flag) - // y Bytes data - // x Bytes parity (one byte per 8 bytes data) - - // timestamp (start) - trace[traceLen++] = ((timestamp_start >> 0) & 0xff); - trace[traceLen++] = ((timestamp_start >> 8) & 0xff); - trace[traceLen++] = ((timestamp_start >> 16) & 0xff); - trace[traceLen++] = ((timestamp_start >> 24) & 0xff); - - // duration - trace[traceLen++] = ((duration >> 0) & 0xff); - trace[traceLen++] = ((duration >> 8) & 0xff); - - // data length - trace[traceLen++] = ((iLen >> 0) & 0xff); - trace[traceLen++] = ((iLen >> 8) & 0xff); - - // readerToTag flag - if (!readerToTag) { - trace[traceLen - 1] |= 0x80; - } - - // data bytes - if (btBytes != NULL && iLen != 0) { - memcpy(trace + traceLen, btBytes, iLen); - } - traceLen += iLen; - - // parity bytes - if (parity != NULL && iLen != 0) { - memcpy(trace + traceLen, parity, num_paritybytes); - } - traceLen += num_paritybytes; - - if(traceLen +4 < TRACE_SIZE) - { //If it hadn't been cleared, for whatever reason.. - memset(trace+traceLen,0x44, 4); - } - - return TRUE; -}