ADD: `analyse nuid` - generates NUID 4byte from a UID 7byte. Mifare Classic Ev1...

[proxmark3-svn] / client / cmdlf.c

diff --git a/client/cmdlf.c b/client/cmdlf.c
index e1cb1bdf865c08dc33f3123d29a6fac10d60a87d..414e4a2be1bbb675fcfd0197bd24883b6ee97d38 100644 (file)
--- a/client/cmdlf.c
+++ b/client/cmdlf.c
@@ -8,6 +8,9 @@
 // Low frequency commands
 //-----------------------------------------------------------------------------
 #include "cmdlf.h"
 // Low frequency commands
 //-----------------------------------------------------------------------------
 #include "cmdlf.h"

+
+bool g_lf_threshold_set = FALSE;
+

 static int CmdHelp(const char *Cmd);
 
 int usage_lf_cmdread(void) {
 static int CmdHelp(const char *Cmd);
 
 int usage_lf_cmdread(void) {


@@ -31,16 +34,14 @@ int usage_lf_read(void){
        PrintAndLog("Options:");
        PrintAndLog("       h            This help");
        PrintAndLog("       s            silent run no printout");
        PrintAndLog("Options:");
        PrintAndLog("       h            This help");
        PrintAndLog("       s            silent run no printout");

-       PrintAndLog("This function takes no arguments. ");

        PrintAndLog("Use 'lf config' to set parameters.");
        return 0;
 }
 int usage_lf_snoop(void) {
        PrintAndLog("Use 'lf config' to set parameters.");
        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("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) {
        return 0;
 }
 int usage_lf_config(void) {


@@ -498,24 +499,27 @@ int CmdLFSetConfig(const char *Cmd) {
                        cmdp++;
                        break;
                case 'q':
                        cmdp++;
                        break;
                case 'q':

-                       errors |= param_getdec(Cmd,cmdp+1,&divisor);
+                       errors |= param_getdec(Cmd, cmdp+1, &divisor);

                        cmdp+=2;
                        break;
                case 't':
                        cmdp+=2;
                        break;
                case 't':

-                       errors |= param_getdec(Cmd,cmdp+1,&unsigned_trigg);
+                       errors |= param_getdec(Cmd, cmdp+1, &unsigned_trigg);

                        cmdp+=2;
                        cmdp+=2;

-                       if(!errors) trigger_threshold = unsigned_trigg;
+                       if(!errors) {
+                               trigger_threshold = unsigned_trigg;
+                               g_lf_threshold_set = (trigger_threshold > 0);
+                       }

                        break;
                case 'b':
                        break;
                case 'b':

-                       errors |= param_getdec(Cmd,cmdp+1,&bps);
+                       errors |= param_getdec(Cmd, cmdp+1, &bps);

                        cmdp+=2;
                        break;
                case 'd':
                        cmdp+=2;
                        break;
                case 'd':

-                       errors |= param_getdec(Cmd,cmdp+1,&decimation);
+                       errors |= param_getdec(Cmd, cmdp+1, &decimation);

                        cmdp+=2;
                        break;
                case 'a':
                        cmdp+=2;
                        break;
                case 'a':

-                       averaging = param_getchar(Cmd,cmdp+1) == '1';
+                       averaging = param_getchar(Cmd, cmdp+1) == '1';

                        cmdp+=2;
                        break;
                default:
                        cmdp+=2;
                        break;
                default:


@@ -532,34 +536,56 @@ int CmdLFSetConfig(const char *Cmd) {
        //Validations
        if (errors) return usage_lf_config();
        
        //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 };
 
        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;
 }
 
 int CmdLFRead(const char *Cmd) {
        clearCommandBuffer();
        SendCommand(&c);
        return 0;
 }
 
 int CmdLFRead(const char *Cmd) {

-       bool arg1 = false;
-       uint8_t cmdp =  param_getchar(Cmd, 0);

        
        

-       if ( cmdp == 'h' || cmdp == 'H') return usage_lf_read();
+       if (offline) return 0;

        
        

-        //suppress print
-       if ( cmdp == 's' || cmdp == 'S') arg1 = true;
+       bool errors = FALSE;
+       bool arg1 = FALSE;
+       uint8_t cmdp = 0;
+       while(param_getchar(Cmd, cmdp) != 0x00) {
+               switch(param_getchar(Cmd, cmdp)) {
+               case 'h':
+               case 'H':
+                       return usage_lf_read();
+               case 's':
+               case 'S':
+                       arg1 = TRUE;
+                       cmdp++;
+                       break;
+               default:
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                       errors = TRUE;
+                       break;
+               }
+               if(errors) break;
+       }
+
+       //Validations
+       if (errors) return usage_lf_read();

 
        UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
        clearCommandBuffer();
        SendCommand(&c);
 
        UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}};
        clearCommandBuffer();
        SendCommand(&c);

-       if ( !WaitForResponseTimeout(CMD_ACK,NULL,2500) ) {
-               PrintAndLog("command execution time out");
-               return 1;
+       if ( g_lf_threshold_set ) {
+               WaitForResponse(CMD_ACK,NULL);  
+       } else {
+               if ( !WaitForResponseTimeout(CMD_ACK, NULL ,2500) ) {
+                       PrintAndLog("command execution time out");
+                       return 1;
+               }

        }
        return 0;
 }
        }
        return 0;
 }


@@ -568,10 +594,11 @@ int CmdLFSnoop(const char *Cmd) {
        uint8_t cmdp = param_getchar(Cmd, 0);
        if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop();
        
        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);
        clearCommandBuffer();   
        SendCommand(&c);
        WaitForResponse(CMD_ACK,NULL);

+       getSamples("", false);

        return 0;
 }
 
        return 0;
 }
 


@@ -602,16 +629,16 @@ 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 (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];
                        c.d.asBytes[j] = GraphBuffer[i+j];

-               }
+

                clearCommandBuffer();
                SendCommand(&c);
                WaitForResponse(CMD_ACK, NULL);
                printf(".");
        }
 
                clearCommandBuffer();
                SendCommand(&c);
                WaitForResponse(CMD_ACK, NULL);
                printf(".");
        }
 

-       PrintAndLog("Starting to simulate");
+       PrintAndLog("Simulating");

 
        UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
        clearCommandBuffer();
 
        UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}};
        clearCommandBuffer();


@@ -1002,31 +1029,84 @@ int CmdVchDemod(const char *Cmd) {
        return 0;
 }
 
        return 0;
 }
 

+
+//by marshmellow
+int CheckChipset(bool getDeviceData) {
+
+       if (!getDeviceData) return 0;
+       
+       uint32_t word = 0;
+       save_restoreGB(1);
+       
+       //check for em4x05/em4x69 chips first
+       if (EM4x05IsBlock0(&word)) {
+               save_restoreGB(0);
+               PrintAndLog("\nValid EM4x05/EM4x69 Chipset found\nTry `lf em 4x05` commands\n");
+               return 1;
+       }
+
+       //TODO check for t55xx chip...
+       // if ( t55xxIsBlock0(() {
+       // save_restoreGB(0);
+       // PrintAndLog("\nValid T55xx Chipset found\nTry `lf t55xx` commands\n");
+       // return 1;
+       // }
+
+       save_restoreGB(0);
+       return 0;
+}
+

 //by marshmellow
 int CmdLFfind(const char *Cmd) {
        int ans = 0;
 //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();
 
        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')){
+       bool getDeviceData = (!offline && (cmdp != '1') );
+       
+       if (getDeviceData) {

                CmdLFRead("s");
                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';
 
                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");
 
        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 (getDeviceData) {
+
+               // only run if graphbuffer is just noise as it should be for hitag/cotag
+               if (graphJustNoise(GraphBuffer, testLen)) {
+                       
+                       if (CheckChipset(getDeviceData) )
+                               return 1;                       
+                       
+                       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;
+               }
+       }
+
+       // identify chipset
+       CheckChipset(getDeviceData);
+       

        ans=CmdFSKdemodIO("");
        if (ans>0) {
                PrintAndLog("\nValid IO Prox ID Found!");
        ans=CmdFSKdemodIO("");
        if (ans>0) {
                PrintAndLog("\nValid IO Prox ID Found!");


@@ -1087,6 +1167,11 @@ int CmdLFfind(const char *Cmd) {
                PrintAndLog("\nValid NexWatch ID Found!");
                return 1;
        }
                PrintAndLog("\nValid NexWatch ID Found!");
                return 1;
        }

+       ans=CmdPSKIdteck("");
+       if (ans>0) {
+               PrintAndLog("\nValid Idteck ID Found!");
+               return 1;
+       }

        ans=CmdJablotronDemod("");
        if (ans>0) {
                PrintAndLog("\nValid Jablotron ID Found!");
        ans=CmdJablotronDemod("");
        if (ans>0) {
                PrintAndLog("\nValid Jablotron ID Found!");


@@ -1112,9 +1197,8 @@ int CmdLFfind(const char *Cmd) {
                PrintAndLog("\nValid Presco ID Found!");
                return 1;
        }
                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)
        PrintAndLog("\nNo Known Tags Found!\n");
        if (testRaw=='u' || testRaw=='U'){
                //test unknown tag formats (raw mode)


@@ -1176,12 +1260,12 @@ int CmdLFfind(const char *Cmd) {
        return 0;
 }
 
        return 0;
 }
 

-static command_t CommandTable[] = 
-{
+static command_t CommandTable[] = {

        {"help",        CmdHelp,            1, "This help"},
        {"animal",      CmdLFFdx,           1, "{ Animal RFIDs... }"},
        {"awid",        CmdLFAWID,          1, "{ AWID RFIDs... }"},
        {"help",        CmdHelp,            1, "This help"},
        {"animal",      CmdLFFdx,           1, "{ Animal RFIDs... }"},
        {"awid",        CmdLFAWID,          1, "{ AWID RFIDs... }"},

-       {"em4x",        CmdLFEM4X,          1, "{ EM4X RFIDs... }"},
+       {"cotag",       CmdLFCOTAG,         1, "{ COTAG RFIDs... }"},
+       {"em",          CmdLFEM4X,          1, "{ EM4X RFIDs... }"},

        {"guard",       CmdLFGuard,         1, "{ Guardall RFIDs... }"},
        {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
        {"hitag",       CmdLFHitag,         1, "{ HITAG RFIDs... }"},
        {"guard",       CmdLFGuard,         1, "{ Guardall RFIDs... }"},
        {"hid",         CmdLFHID,           1, "{ HID RFIDs... }"},
        {"hitag",       CmdLFHitag,         1, "{ HITAG RFIDs... }"},


@@ -1209,7 +1293,7 @@ static command_t CommandTable[] =
        {"simfsk",      CmdLFfskSim,        0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
        {"simpsk",      CmdLFpskSim,        0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \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)"},
        {"simfsk",      CmdLFfskSim,        0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"},
        {"simpsk",      CmdLFpskSim,        0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \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'|<divisor>] [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}
 };
        {"vchdemod",    CmdVchDemod,        1, "['clone'] -- Demodulate samples for VeriChip"},
        {NULL, NULL, 0, NULL}
 };