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MAJOR update, added hitag2 reader, emulation and eavesdropping, lots of new code, including FPGA tweaks, part 2

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roel@libnfc.org 2012-09-18 13:53:17 +00:00
commit d19929cbe8
18 changed files with 1355 additions and 454 deletions
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16
armsrc/iso14443a.c
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@ -21,7 +21,7 @@
#include "mifareutil.h"
static uint32_t iso14a_timeout;
uint8_t *trace = (uint8_t *) BigBuf;
uint8_t *trace = (uint8_t *) BigBuf+TRACE_OFFSET;
int traceLen = 0;
int rsamples = 0;
int tracing = TRUE;
@ -68,12 +68,15 @@ void iso14a_set_trigger(int enable) {
trigger = enable;
}
void iso14a_clear_tracelen(void) {
void iso14a_clear_trace(void) {
memset(trace, 0x44, TRACE_SIZE);
traceLen = 0;
}
void iso14a_set_tracing(int enable) {
tracing = enable;
}
void iso14a_set_timeout(uint32_t timeout) {
iso14a_timeout = timeout;
}
@ -580,8 +583,7 @@ void RAMFUNC SnoopIso14443a(uint8_t param) {
LEDsoff();
// init trace buffer
traceLen = 0;
memset(trace, 0x44, TRACE_SIZE);
iso14a_clear_trace();
// We won't start recording the frames that we acquire until we trigger;
// a good trigger condition to get started is probably when we see a
@ -905,8 +907,7 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
{
// Enable and clear the trace
tracing = TRUE;
traceLen = 0;
memset(trace, 0x44, TRACE_SIZE);
iso14a_clear_trace();
// This function contains the tag emulation
uint8_t sak;
@ -2379,8 +2380,7 @@ void RAMFUNC SniffMifare(uint8_t param) {
// C(red) A(yellow) B(green)
LEDsoff();
// init trace buffer
traceLen = 0;
memset(trace, 0x44, TRACE_SIZE);
iso14a_clear_trace();
// The command (reader -> tag) that we're receiving.
// The length of a received command will in most cases be no more than 18 bytes.