//by marshmellow
int CmdLFfind(const char *Cmd) {
int ans = 0;
+ size_t minLength = 1000;
char cmdp = param_getchar(Cmd, 0);
char testRaw = param_getchar(Cmd, 1);
if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_lf_find();
if (!offline && (cmdp != '1')){
CmdLFRead("s");
getSamples("30000", false);
- } else if (GraphTraceLen < 1000) {
+ } else if (GraphTraceLen < minLength) {
PrintAndLog("Data in Graphbuffer was too small.");
return 0;
}
if (cmdp == 'u' || cmdp == 'U') testRaw = 'u';
- // if ( justNoise(GraphBuffer, GraphTraceLen) ) {
- // PrintAndLog("Signal looks just like noise. Quitting.");
- // return 0;
- // }
-
PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag");
PrintAndLog("False Positives ARE possible\n");
PrintAndLog("\nChecking for known tags:\n");
+ size_t testLen = minLength;
+
+ // only run these tests if device is online
+ if (!offline && (cmdp != '1')){
+
+ // only run if graphbuffer is just noise as it should be for hitag/cotag
+ if (graphJustNoise(GraphBuffer, testLen)) {
+
+ ans=CmdLFHitagReader("26");
+ if (ans==0)
+ return 1;
+
+ ans=CmdCOTAGRead("");
+ if (ans>0){
+ PrintAndLog("\nValid COTAG ID Found!");
+ return 1;
+ }
+ PrintAndLog("Signal looks just like noise. Quitting.");
+ return 0;
+ }
+ }
+
ans=CmdFSKdemodIO("");
if (ans>0) {
PrintAndLog("\nValid IO Prox ID Found!");
PrintAndLog("\nValid Presco ID Found!");
return 1;
}
- // ICEMAN; always call save_restorGB for COTAG. Will break graphbuffer
- save_restoreGB(1);
- ans=CmdCOTAGRead("");
- if (ans>0){
- PrintAndLog("\nValid COTAG ID Found!");
- return 1;
- }
- save_restoreGB(0);
- // TIdemod?
-/*
- if (!offline && (cmdp != '1')){
- ans=CmdLFHitagReader("26");
- if (ans==0) {
- return 1;
- }
- }
-*/
+ // TIdemod?
PrintAndLog("\nNo Known Tags Found!\n");
if (testRaw=='u' || testRaw=='U'){
//test unknown tag formats (raw mode)
uint8_t GetNrzClock(const char str[], bool printAns, bool verbose);
uint8_t GetFskClock(const char str[], bool printAns, bool verbose);
uint8_t fskClocks(uint8_t *fc1, uint8_t *fc2, uint8_t *rf1, bool verbose);
+bool graphJustNoise(int *BitStream, int size);
void setGraphBuf(uint8_t *buff, size_t size);
void save_restoreGB(uint8_t saveOpt);