CHG: 'lf em4x' - the em4x50 demod didn't calc ASKDemod_ext with a refenence bool.

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index c583aa3fbe9f81c92657806e334f6d7e3aa6a50d..a75f2ec06b12a5107f02a0e9951930b4c2dc7093 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -328,6 +328,11 @@ int CmdPrintDemodBuff(const char *Cmd)
        }
        //Validations
        if(errors) return usage_data_printdemodbuf();
+       
+       if (DemodBufferLen == 0) {
+               PrintAndLog("Demodbuffer is empty");
+               return 0;
+       }
        length = (length > (DemodBufferLen-offset)) ? DemodBufferLen-offset : length; 
        int numBits = (length) & 0x00FFC; //make sure we don't exceed our string
 
@@ -519,7 +524,6 @@ int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType,
        int clk = 0;
        int maxErr = 100;
        int maxLen = 0;
-       uint8_t askAmp = 0;
        char amp = param_getchar(Cmd, 0);
        uint8_t BitStream[MAX_GRAPH_TRACE_LEN] = {0};
        sscanf(Cmd, "%i %i %i %i %c", &clk, &invert, &maxErr, &maxLen, &amp);
@@ -532,12 +536,15 @@ int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType,
                invert=1;
                clk=0;
        }
-       if (amp == 'a' || amp == 'A') askAmp=1; 
        size_t BitLen = getFromGraphBuf(BitStream);
-       if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d",BitLen);
+       if (g_debugMode) PrintAndLog("DEBUG: Bitlen from grphbuff: %d", BitLen);
        if (BitLen<255) return 0;
        if (maxLen<BitLen && maxLen != 0) BitLen = maxLen;
        int foundclk = 0;
+       //amp before ST check
+       if (amp == 'a' || amp == 'A')
+               askAmp(BitStream, BitLen); 
+
        bool st = false;
        if (*stCheck) st = DetectST(BitStream, &BitLen, &foundclk);
        if (st) {
@@ -545,12 +552,13 @@ int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType,
                clk = (clk == 0) ? foundclk : clk;
                if (verbose || g_debugMode) PrintAndLog("\nFound Sequence Terminator");
        }
-       int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, askAmp, askType);
+               
+       int errCnt = askdemod(BitStream, &BitLen, &clk, &invert, maxErr, 0, askType);
        if (errCnt<0 || BitLen<16){  //if fatal error (or -1)
                if (g_debugMode) PrintAndLog("DEBUG: no data found %d, errors:%d, bitlen:%d, clock:%d",errCnt,invert,BitLen,clk);
                return 0;
        }
-       if (errCnt>maxErr){
+       if (errCnt > maxErr){
                if (g_debugMode) PrintAndLog("DEBUG: Too many errors found, errors:%d, bits:%d, clock:%d",errCnt, BitLen, clk);
                return 0;
        }
@@ -587,7 +595,7 @@ int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType) {
 int Cmdaskmandemod(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 25 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
+       if (strlen(Cmd) > 45 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_am();
 
        bool st = TRUE;
        if (Cmd[0]=='s') 
@@ -628,8 +636,8 @@ int Cmdmandecoderaw(const char *Cmd)
        }
 
        sscanf(Cmd, "%i %i", &invert, &maxErr);
-       size=i;
-       errCnt=manrawdecode(BitStream, &size, invert);
+       size = i;
+       errCnt = manrawdecode(BitStream, &size, invert);
        if (errCnt >= maxErr){
                PrintAndLog("Too many errors: %d",errCnt);
                return 0;
@@ -778,8 +786,8 @@ int CmdG_Prox_II_Demod(const char *Cmd)
                ByteStream[idx] = ((uint8_t)bytebits_to_byteLSBF(bits_no_spacer+8 + (idx*8),8)) ^ xorKey;
                if (g_debugMode) PrintAndLog("DEBUG: gProxII byte %u after xor: %02x", (unsigned int)idx, ByteStream[idx]);
        }
-       //now ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
-       // 
+       
+       //ByteStream contains 8 Bytes (64 bits) of decrypted raw tag data
        uint8_t fmtLen = ByteStream[0]>>2;
        uint32_t FC = 0;
        uint32_t Card = 0;
@@ -787,20 +795,25 @@ int CmdG_Prox_II_Demod(const char *Cmd)
        uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans,32);
        uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
        uint32_t raw3 = bytebits_to_byte(DemodBuffer+ans+64, 32);
-
-       if (fmtLen==36){
-               FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
-               Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
-               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
-       } else if(fmtLen==26){
-               FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
-               Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
-               PrintAndLog("G-Prox-II Found: FmtLen %d, FC %u, Card %u", (int)fmtLen, FC, Card);
-       } else {
-               PrintAndLog("Unknown G-Prox-II Fmt Found: FmtLen %d",(int)fmtLen);
-               PrintAndLog("Decoded Raw: %s", sprint_hex(ByteStream, 8)); 
+       bool unknown = FALSE;
+       switch(fmtLen) {
+               case 36:
+                       FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
+                       Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
+                       break;
+               case 26: 
+                       FC = ((ByteStream[3] & 0x7F)<<1) | (ByteStream[4]>>7);
+                       Card = ((ByteStream[4]&0x7F)<<9) | (ByteStream[5]<<1) | (ByteStream[6]>>7);
+                       break;
+               default :
+                       unknown = TRUE;
+                       break;
        }
-       PrintAndLog("Raw: %08x%08x%08x", raw1,raw2,raw3);
+       if ( !unknown)
+               PrintAndLog("G-Prox-II Found: Format Len: %ubit - FC: %u - Card: %u, Raw: %08x%08x%08x", fmtLen, FC, Card, raw1, raw2, raw3);
+       else
+               PrintAndLog("Unknown G-Prox-II Fmt Found: Format Len: %u, Raw: %08x%08x%08x", fmtLen, raw1, raw2, raw3);
+
        setDemodBuf(DemodBuffer+ans, 96, 0);
        return 1;
 }
@@ -1142,7 +1155,7 @@ int FSKrawDemod(const char *Cmd, bool verbose)
 int CmdFSKrawdemod(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
+       if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_fs();
 
        return FSKrawDemod(Cmd, TRUE);
 }
@@ -1991,7 +2004,7 @@ int NRZrawDemod(const char *Cmd, bool verbose)
 int CmdNRZrawDemod(const char *Cmd)
 {
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
+       if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_nr();
 
        return NRZrawDemod(Cmd, TRUE);
 }
@@ -2004,7 +2017,7 @@ int CmdPSK1rawDemod(const char *Cmd)
 {
        int ans;
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
+       if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H') return usage_data_rawdemod_p1();
 
        ans = PSKDemod(Cmd, TRUE);
        //output
@@ -2024,7 +2037,7 @@ int CmdPSK2rawDemod(const char *Cmd)
 {
        int ans = 0;
        char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 10 || cmdp == 'h' || cmdp == 'H')     return usage_data_rawdemod_p2();
+       if (strlen(Cmd) > 16 || cmdp == 'h' || cmdp == 'H')     return usage_data_rawdemod_p2();
 
        ans = PSKDemod(Cmd, TRUE);
        if (!ans){
@@ -2045,7 +2058,7 @@ int CmdRawDemod(const char *Cmd)
        char cmdp2 = Cmd[1];
        int ans = 0;
 
-       if (strlen(Cmd) > 20 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
+       if (strlen(Cmd) > 35 || cmdp == 'h' || cmdp == 'H' || strlen(Cmd) < 2)
                return usage_data_rawdemod();
 
        if (cmdp == 'f' && cmdp2 == 's')
@@ -2256,7 +2269,7 @@ int CmdTuneSamples(const char *Cmd)
                PrintAndLog("# LF antenna: %5.2f V @   125.00 kHz", vLf125/1000.0);
        if ( vLf134 > NON_VOLTAGE )
                PrintAndLog("# LF antenna: %5.2f V @   134.00 kHz", vLf134/1000.0);
-       if ( peakv > NON_VOLTAGE && peakf > NON_VOLTAGE )
+       if ( peakv > NON_VOLTAGE && peakf > 0 )
                PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
        if ( vHf > NON_VOLTAGE )
                PrintAndLog("# HF antenna: %5.2f V @    13.56 MHz", vHf/1000.0);
@@ -2306,10 +2319,9 @@ int CmdLoad(const char *Cmd)
                GraphBuffer[GraphTraceLen] = atoi(line);
                GraphTraceLen++;
        }
-       if (f) {
+       if (f)
                fclose(f);
-               f = NULL;
-       }
+
        PrintAndLog("loaded %d samples", GraphTraceLen);
        RepaintGraphWindow();
        return 0;
@@ -2382,10 +2394,9 @@ int CmdSave(const char *Cmd)
        for (int i = 0; i < GraphTraceLen; i++)
                fprintf(f, "%d\n", GraphBuffer[i]);
 
-       if (f) {
+       if (f)
                fclose(f);
-               f = NULL;
-       }
+
        PrintAndLog("saved to '%s'", Cmd);
        return 0;
 }