]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdlf.c
more graceful exit to lf search if no signal found
[proxmark3-svn] / client / cmdlf.c
index 5b91d2e88e07ccaafe7f52a7ddb7941455d563c0..51e89581b74c7c906f7fc118a9c28b59e821b17d 100644 (file)
@@ -45,6 +45,7 @@
 #include "cmdlfjablotron.h" //for jablotron menu
 #include "cmdlfnoralsy.h"// for noralsy menu
 #include "cmdlfsecurakey.h"//for securakey menu
+#include "cmdlfpac.h"    // for pac menu
 
 bool g_lf_threshold_set = false;
 static int CmdHelp(const char *Cmd);
@@ -53,26 +54,24 @@ static int CmdHelp(const char *Cmd);
 
 int usage_lf_cmdread(void)
 {
-       PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H] ");
+       PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> ");
        PrintAndLog("Options:        ");
        PrintAndLog("       h             This help");
-       PrintAndLog("       L             Low frequency (125 KHz)");
-       PrintAndLog("       H             High frequency (134 KHz)");
-       PrintAndLog("       d <delay>     delay OFF period");
-       PrintAndLog("       z <zero>      time period ZERO");
-       PrintAndLog("       o <one>       time period ONE");
+       PrintAndLog("       d <delay>     delay OFF period between bits (0 for bitbang mode)");
+       PrintAndLog("       z <zero>      time period ZERO (antenna off in bitbang mode)");
+       PrintAndLog("       o <one>       time period ONE (antenna on in bitbang mode)");
        PrintAndLog("       c <cmd>       Command bytes");
        PrintAndLog("       ************* All periods in microseconds");
+       PrintAndLog("       ************* Use lf config to configure options.");
        PrintAndLog("Examples:");
        PrintAndLog("      lf cmdread d 80 z 100 o 200 c 11000");
-       PrintAndLog("      lf cmdread d 80 z 100 o 100 c 11000 H");
+       PrintAndLog("      lf cmdread d 80 z 100 o 100 c 11000");
        return 0;
 }
 
 /* send a command before reading */
 int CmdLFCommandRead(const char *Cmd)
 {
-       static char dummy[3] = {0x20,0x00,0x00};
        UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K};
        bool errors = false;
        //uint8_t divisor = 95; //125khz
@@ -83,16 +82,8 @@ int CmdLFCommandRead(const char *Cmd)
                {
                case 'h':
                        return usage_lf_cmdread();
-               case 'H':
-                       //divisor = 88;
-                       dummy[1]='h';
-                       cmdp++;
-                       break;
-               case 'L':
-                       cmdp++;
-                       break;
                case 'c':
-                       param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes);
+                       param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes, sizeof(c.d.asBytes));
                        cmdp+=2;
                        break;
                case 'd':
@@ -120,11 +111,13 @@ int CmdLFCommandRead(const char *Cmd)
        //Validations
        if(errors) return usage_lf_cmdread();
        
-       // in case they specified 'H'
-       strcpy((char *)&c.d.asBytes + strlen((char *)c.d.asBytes), dummy);
-
        clearCommandBuffer();
        SendCommand(&c);
+
+       WaitForResponse(CMD_ACK,NULL);
+       getSamples(0, true);
+
+
        return 0;
 }
 
@@ -334,7 +327,7 @@ int CmdLFSetConfig(const char *Cmd)
 }
 
 bool lf_read(bool silent, uint32_t samples) {
-       if (offline) return false;
+       if (IsOffline()) return false;
        UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {silent,samples,0}};
        clearCommandBuffer();
        //And ship it to device
@@ -349,7 +342,8 @@ bool lf_read(bool silent, uint32_t samples) {
                        return false;
                }
        }
-       getSamples(resp.arg[0], silent);
+       // resp.arg[0] is bits read not bytes read.
+       getSamples(resp.arg[0]/8, silent);
 
        return true;
 }
@@ -408,14 +402,13 @@ int CmdLFSim(const char *Cmd)
 
        sscanf(Cmd, "%i", &gap);
 
-       // convert to bitstream if necessary 
-
+       // convert to bitstream if necessary
        ChkBitstream(Cmd);
 
        //can send only 512 bits at a time (1 byte sent per bit...)
        printf("Sending [%d bytes]", GraphTraceLen);
        for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) {
-               UsbCommand c={CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
+               UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}};
 
                for (j = 0; j < USB_CMD_DATA_SIZE; j++) {
                        c.d.asBytes[j] = GraphBuffer[i+j];
@@ -490,7 +483,7 @@ int CmdLFfskSim(const char *Cmd)
        uint8_t fcHigh=0, fcLow=0, clk=0;
        uint8_t invert=0;
        bool errors = false;
-       char hexData[32] = {0x00}; // store entered hex data
+       char hexData[64] = {0x00}; // store entered hex data
        uint8_t data[255] = {0x00}; 
        int dataLen = 0;
        uint8_t cmdp = 0;
@@ -521,7 +514,7 @@ int CmdLFfskSim(const char *Cmd)
                //  cmdp++;
                //  break;
                case 'd':
-                       dataLen = param_getstr(Cmd, cmdp+1, hexData);
+                       dataLen = param_getstr(Cmd, cmdp+1, hexData, sizeof(hexData));
                        if (dataLen==0) {
                                errors=true; 
                        } else {
@@ -548,10 +541,10 @@ int CmdLFfskSim(const char *Cmd)
        {
                return usage_lf_simfsk();
        }
-
+       int firstClockEdge = 0;
        if (dataLen == 0){ //using DemodBuffer 
                if (clk==0 || fcHigh==0 || fcLow==0){ //manual settings must set them all
-                       uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0);
+                       uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0, &firstClockEdge);
                        if (ans==0){
                                if (!fcHigh) fcHigh=10;
                                if (!fcLow) fcLow=8;
@@ -592,7 +585,7 @@ int CmdLFaskSim(const char *Cmd)
        uint8_t encoding = 1, separator = 0;
        uint8_t clk=0, invert=0;
        bool errors = false;
-       char hexData[32] = {0x00}; 
+       char hexData[64] = {0x00}; 
        uint8_t data[255]= {0x00}; // store entered hex data
        int dataLen = 0;
        uint8_t cmdp = 0;
@@ -627,7 +620,7 @@ int CmdLFaskSim(const char *Cmd)
                        cmdp++;
                        break;
                case 'd':
-                       dataLen = param_getstr(Cmd, cmdp+1, hexData);
+                       dataLen = param_getstr(Cmd, cmdp+1, hexData, sizeof(hexData));
                        if (dataLen==0) {
                                errors=true; 
                        } else {
@@ -686,7 +679,7 @@ int CmdLFpskSim(const char *Cmd)
        uint8_t carrier=0, clk=0;
        uint8_t invert=0;
        bool errors = false;
-       char hexData[32] = {0x00}; // store entered hex data
+       char hexData[64] = {0x00}; // store entered hex data
        uint8_t data[255] = {0x00}; 
        int dataLen = 0;
        uint8_t cmdp = 0;
@@ -722,7 +715,7 @@ int CmdLFpskSim(const char *Cmd)
                        cmdp++;
                        break;
                case 'd':
-                       dataLen = param_getstr(Cmd, cmdp+1, hexData);
+                       dataLen = param_getstr(Cmd, cmdp+1, hexData, sizeof(hexData));
                        if (dataLen==0) {
                                errors=true; 
                        } else {
@@ -877,26 +870,27 @@ int CmdVchDemod(const char *Cmd)
 int CheckChipType(char cmdp) {
        uint32_t wordData = 0;
 
+       if (IsOffline() || cmdp == '1') return 0;
+
+       save_restoreGB(GRAPH_SAVE);
+       save_restoreDB(GRAPH_SAVE);
        //check for em4x05/em4x69 chips first
-       save_restoreGB(1);
-       save_restoreDB(1);
-       if ((!offline && (cmdp != '1')) && EM4x05Block0Test(&wordData)) {
+       if (EM4x05Block0Test(&wordData)) {
                PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nTry lf em 4x05... commands\n");
-               save_restoreGB(0);
-               save_restoreDB(0);
+               save_restoreGB(GRAPH_RESTORE);
+               save_restoreDB(GRAPH_RESTORE);
                return 1;
        }
 
-       //TODO check for t55xx chip...
-
-       if ((!offline && (cmdp != '1')) && tryDetectP1(true)) {
+       //check for t55xx chip...
+       if (tryDetectP1(true)) {
                PrintAndLog("\nValid T55xx Chip Found\nTry lf t55xx ... commands\n");
-               save_restoreGB(0);
-               save_restoreDB(0);
+               save_restoreGB(GRAPH_RESTORE);
+               save_restoreDB(GRAPH_RESTORE);
                return 1;               
        }
-       save_restoreGB(0);
-       save_restoreDB(0);
+       save_restoreGB(GRAPH_RESTORE);
+       save_restoreDB(GRAPH_RESTORE);
        return 0;
 }
 
@@ -921,7 +915,7 @@ int CmdLFfind(const char *Cmd)
                return 0;
        }
 
-       if (!offline && (cmdp != '1')) {
+       if (!IsOffline() && (cmdp != '1')) {
                lf_read(true, 30000);
        } else if (GraphTraceLen < minLength) {
                PrintAndLog("Data in Graphbuffer was too small.");
@@ -937,13 +931,13 @@ int CmdLFfind(const char *Cmd)
        // only run if graphbuffer is just noise as it should be for hitag/cotag
        if (graphJustNoise(GraphBuffer, testLen)) {
                // only run these tests if we are in online mode 
-               if (!offline && (cmdp != '1')) {
+               if (!IsOffline() && (cmdp != '1')) {
                        // test for em4x05 in reader talk first mode.
                        if (EM4x05Block0Test(&wordData)) {
                                PrintAndLog("\nValid EM4x05/EM4x69 Chip Found\nUse lf em 4x05readword/dump commands to read\n");
                                return 1;
                        }
-                       ans=CmdLFHitagReader("26");
+                       ans=CmdLFHitagReader("26"); // 26 = RHT2F_UID_ONLY
                        if (ans==0) {
                                return 1;
                        }
@@ -953,6 +947,7 @@ int CmdLFfind(const char *Cmd)
                                return 1;
                        }
                }
+               PrintAndLog("\nNo Data Found! - maybe not an LF tag?\n");
                return 0;
        }
 
@@ -1054,19 +1049,25 @@ int CmdLFfind(const char *Cmd)
                return CheckChipType(cmdp);
        }
 
+       ans=CmdPacDemod("");
+       if (ans>0) {
+               PrintAndLog("\nValid PAC/Stanley ID Found!");
+               return CheckChipType(cmdp);             
+       }
+
        PrintAndLog("\nNo Known Tags Found!\n");
        if (testRaw=='u' || testRaw=='U') {
-               ans=CheckChipType(cmdp);
+               //ans=CheckChipType(cmdp);
                //test unknown tag formats (raw mode)0
                PrintAndLog("\nChecking for Unknown tags:\n");
-               ans=AutoCorrelate(4000, false, false);
+               ans=AutoCorrelate(GraphBuffer, GraphBuffer, GraphTraceLen, 4000, false, false);
                if (ans > 0) PrintAndLog("Possible Auto Correlation of %d repeating samples",ans);
                ans=GetFskClock("",false,false); 
                if (ans != 0) { //fsk
                        ans=FSKrawDemod("",true);
                        if (ans>0) {
                                PrintAndLog("\nUnknown FSK Modulated Tag Found!");
-                               return 1;
+                               return CheckChipType(cmdp);
                        }
                }
                bool st = true;
@@ -1074,15 +1075,16 @@ int CmdLFfind(const char *Cmd)
                if (ans>0) {
                        PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!");
                        PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'");
-                       return 1;
+                       return CheckChipType(cmdp);
                }
                ans=CmdPSK1rawDemod("");
                if (ans>0) {
                        PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'");
                        PrintAndLog("\nCould also be PSK3 - [currently not supported]");
-                       PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod'");
-                       return 1;
+                       PrintAndLog("\nCould also be NRZ - try 'data rawdemod nr'");
+                       return CheckChipType(cmdp);
                }
+               ans = CheckChipType(cmdp);
                PrintAndLog("\nNo Data Found!\n");
        }
        return 0;
@@ -1103,6 +1105,7 @@ static command_t CommandTable[] =
        {"jablotron",   CmdLFJablotron,     1, "{ Jablotron RFIDs...         }"},
        {"nexwatch",    CmdLFNexWatch,      1, "{ NexWatch RFIDs...          }"},
        {"noralsy",     CmdLFNoralsy,       1, "{ Noralsy RFIDs...           }"},
+       {"pac",         CmdLFPac,           1, "{ PAC/Stanley RFIDs...       }"},
        {"paradox",     CmdLFParadox,       1, "{ Paradox RFIDs...           }"},
        {"presco",      CmdLFPresco,        1, "{ Presco RFIDs...            }"},
        {"pcf7931",     CmdLFPCF7931,       1, "{ PCF7931 CHIPs...           }"},
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