X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3acac886bc2e0b89723673968af21984aa15a073..03d73c0b8d3fdacfda8d5fbc696c28f39655db62:/client/cmdlf.c?ds=sidebyside diff --git a/client/cmdlf.c b/client/cmdlf.c index fdf454c5..f2a9bb38 100644 --- a/client/cmdlf.c +++ b/client/cmdlf.c @@ -36,11 +36,10 @@ int usage_lf_read(void){ return 0; } int usage_lf_snoop(void) { - PrintAndLog("Usage: lf snoop"); + PrintAndLog("Snoop low frequence signal. Use 'lf config' to set parameters."); + PrintAndLog("Usage: lf snoop [h]"); PrintAndLog("Options:"); - PrintAndLog(" h This help"); - PrintAndLog("This function takes no arguments. "); - PrintAndLog("Use 'lf config' to set parameters."); + PrintAndLog(" h This help"); return 0; } int usage_lf_config(void) { @@ -498,24 +497,24 @@ int CmdLFSetConfig(const char *Cmd) { cmdp++; break; case 'q': - errors |= param_getdec(Cmd,cmdp+1,&divisor); + errors |= param_getdec(Cmd, cmdp+1, &divisor); cmdp+=2; break; case 't': - errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg); + errors |= param_getdec(Cmd, cmdp+1, &unsigned_trigg); cmdp+=2; if(!errors) trigger_threshold = unsigned_trigg; break; case 'b': - errors |= param_getdec(Cmd,cmdp+1,&bps); + errors |= param_getdec(Cmd, cmdp+1, &bps); cmdp+=2; break; case 'd': - errors |= param_getdec(Cmd,cmdp+1,&decimation); + errors |= param_getdec(Cmd, cmdp+1, &decimation); cmdp+=2; break; case 'a': - averaging = param_getchar(Cmd,cmdp+1) == '1'; + averaging = param_getchar(Cmd, cmdp+1) == '1'; cmdp+=2; break; default: @@ -532,14 +531,13 @@ int CmdLFSetConfig(const char *Cmd) { //Validations if (errors) return usage_lf_config(); - //Bps is limited to 8, so fits in lower half of arg1 + //Bps is limited to 8 if (bps >> 4) bps = 8; sample_config config = { decimation, bps, averaging, divisor, trigger_threshold }; - //Averaging is a flag on high-bit of arg[1] - UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG}; - memcpy(c.d.asBytes,&config,sizeof(sample_config)); + UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG, {0,0,0} }; + memcpy(c.d.asBytes, &config, sizeof(sample_config)); clearCommandBuffer(); SendCommand(&c); return 0; @@ -557,7 +555,7 @@ int CmdLFRead(const char *Cmd) { UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}}; clearCommandBuffer(); SendCommand(&c); - if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) { + if ( !WaitForResponseTimeout(CMD_ACK, NULL ,2500) ) { PrintAndLog("command execution time out"); return 1; } @@ -568,10 +566,11 @@ int CmdLFSnoop(const char *Cmd) { uint8_t cmdp = param_getchar(Cmd, 0); if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop(); - UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES}; + UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES,{0,0,0}}; clearCommandBuffer(); SendCommand(&c); WaitForResponse(CMD_ACK,NULL); + getSamples("", false); return 0; } @@ -602,16 +601,16 @@ int CmdLFSim(const char *Cmd) { for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) { UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}}; - for (j = 0; j < USB_CMD_DATA_SIZE; j++) { + for (j = 0; j < USB_CMD_DATA_SIZE; j++) c.d.asBytes[j] = GraphBuffer[i+j]; - } + clearCommandBuffer(); SendCommand(&c); WaitForResponse(CMD_ACK, NULL); printf("."); } - PrintAndLog("Starting to simulate"); + PrintAndLog("Simulating"); UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}}; clearCommandBuffer(); @@ -1005,28 +1004,46 @@ int CmdVchDemod(const char *Cmd) { //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", TRUE); - } else if (GraphTraceLen < 1000) { + getSamples("30000", false); + } 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!"); @@ -1117,9 +1134,8 @@ int CmdLFfind(const char *Cmd) { PrintAndLog("\nValid Presco ID Found!"); return 1; } - // TIdemod? - + // TIdemod? PrintAndLog("\nNo Known Tags Found!\n"); if (testRaw=='u' || testRaw=='U'){ //test unknown tag formats (raw mode) @@ -1186,6 +1202,7 @@ static command_t CommandTable[] = {"help", CmdHelp, 1, "This help"}, {"animal", CmdLFFdx, 1, "{ Animal RFIDs... }"}, {"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"}, + {"cotag", CmdLFCOTAG, 1, "{ COTAG RFIDs... }"}, {"em4x", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, {"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"}, {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, @@ -1214,7 +1231,7 @@ static command_t CommandTable[] = {"simfsk", CmdLFfskSim, 0, "[c ] [i] [H ] [L ] [d ] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"}, {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c ] [i] [r ] [d ] \n\t\t-- Simulate LF PSK tag from demodbuffer or input"}, {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"}, - {"snoop", CmdLFSnoop, 0, "['l'|'h'|] [trigger threshold]-- Snoop LF (l:125khz, h:134khz)"}, + {"snoop", CmdLFSnoop, 0, "Snoop LF"}, {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, {NULL, NULL, 0, NULL} };