Merge pull request #220 from marshmellow42/master

[proxmark3-svn] / client / cmdlfem4x.c

diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c
index d1245306ef00d0256de5ec23ea1163fa5fb5c9c7..f9103126ea99863931b8b943e8ea0dbafef4acfd 100644 (file)
--- a/client/cmdlfem4x.c
+++ b/client/cmdlfem4x.c
@@ -63,6 +63,20 @@ int CmdEM410xRead(const char *Cmd)
        return 1;
 }
 
+int usage_lf_em410x_sim(void) {
+       PrintAndLog("Simulating EM410x tag");
+       PrintAndLog("");
+       PrintAndLog("Usage:  lf em 410xsim [h] <uid> <clock>");
+       PrintAndLog("Options:");
+       PrintAndLog("       h         - this help");
+       PrintAndLog("       uid       - uid (10 HEX symbols)");
+       PrintAndLog("       clock     - clock (32|64) (optional)");
+       PrintAndLog("samples:");
+       PrintAndLog("      lf em 410xsim 0F0368568B");
+       PrintAndLog("      lf em 410xsim 0F0368568B 32");
+       return 0;
+}
+
 // emulate an EM410X tag
 int CmdEM410xSim(const char *Cmd)
 {
@@ -71,12 +85,7 @@ int CmdEM410xSim(const char *Cmd)
        char cmdp = param_getchar(Cmd, 0);
        uint8_t uid[5] = {0x00};
 
-       if (cmdp == 'h' || cmdp == 'H') {
-               PrintAndLog("Usage:  lf em 410xsim <UID> <clock>");
-               PrintAndLog("");
-               PrintAndLog("     sample: lf em 410xsim 0F0368568B");
-               return 0;
-       }
+       if (cmdp == 'h' || cmdp == 'H') return usage_lf_em410x_sim();
        /* clock is 64 in EM410x tags */
        uint8_t clock = 64;
 
@@ -174,7 +183,7 @@ int CmdEM410xWrite(const char *Cmd)
        int card = 0xFF; // invalid card value
        unsigned int clock = 0; // invalid clock value
 
-       sscanf(Cmd, "%" PRIx64 " %d %d", &id, &card, &clock);
+       sscanf(Cmd, "%" SCNx64 " %d %d", &id, &card, &clock);
 
        // Check ID
        if (id == 0xFFFFFFFFFFFFFFFF) {
@@ -540,7 +549,7 @@ bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
        // sanity check
        size = (size > DemodBufferLen) ? DemodBufferLen : size;
        // test preamble
-       if ( !onePreambleSearch(DemodBuffer, preamble, sizeof(preamble), size, &startIdx) ) {
+       if ( !preambleSearchEx(DemodBuffer, preamble, sizeof(preamble), &size, &startIdx, true) ) {
                if (g_debugMode) PrintAndLog("DEBUG: Error - EM4305 preamble not found :: %d", startIdx);
                return false;
        }
@@ -550,13 +559,13 @@ bool EM4x05testDemodReadData(uint32_t *word, bool readCmd) {
                        if (g_debugMode) PrintAndLog("DEBUG: Error - End Parity check failed");
                        return false;
                }
-               // test for even parity bits.
-               if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,44) == 0 ) {             
+               // test for even parity bits and remove them. (leave out the end row of parities so 36 bits)
+               if ( removeParity(DemodBuffer, startIdx + sizeof(preamble),9,0,36) == 0 ) {             
                        if (g_debugMode) PrintAndLog("DEBUG: Error - Parity not detected");
                        return false;
                }
 
-               setDemodBuf(DemodBuffer, 40, 0);
+               setDemodBuf(DemodBuffer, 32, 0);
                *word = bytebits_to_byteLSBF(DemodBuffer, 32);
        }
        return true;
@@ -675,7 +684,7 @@ int EM4x05ReadWord(uint8_t addr, uint32_t pwd, bool usePwd) {
        uint32_t wordData = 0;
        int success = EM4x05ReadWord_ext(addr, pwd, usePwd, &wordData);
        if (success == 1)
-               PrintAndLog(" Got Address %02d | %08X",addr,wordData);
+               PrintAndLog("%s Address %02d | %08X", (addr>13) ? "Lock":" Got",addr,wordData);
        else
                PrintAndLog("Read Address %02d | failed",addr);
 
@@ -859,11 +868,11 @@ void printEM4x05config(uint32_t wordData) {
        }
        PrintAndLog("ConfigWord: %08X (Word 4)\n", wordData);
        PrintAndLog("Config Breakdown:", wordData);
-       PrintAndLog(" Data Rate:  %02X | RF/%u", wordData & 0x3F, datarate);
+       PrintAndLog(" Data Rate:  %02u | RF/%u", wordData & 0x3F, datarate);
        PrintAndLog("   Encoder:   %u | %s", encoder, enc);
        PrintAndLog("    PSK CF:   %u | %s", PSKcf, cf);
        PrintAndLog("     Delay:   %u | %s", delay, cdelay);
-       PrintAndLog(" LastWordR:  %02u | Address of last default word read", LWR);
+       PrintAndLog(" LastWordR:  %02u | Address of last word for default read", LWR);
        PrintAndLog(" ReadLogin:   %u | Read Login is %s", (wordData & 0x40000)>>18, (wordData & 0x40000) ? "Required" : "Not Required");       
        PrintAndLog("   ReadHKL:   %u | Read Housekeeping Words Login is %s", (wordData & 0x80000)>>19, (wordData & 0x80000) ? "Required" : "Not Required");    
        PrintAndLog("WriteLogin:   %u | Write Login is %s", (wordData & 0x100000)>>20, (wordData & 0x100000) ? "Required" : "Not Required");    
@@ -898,8 +907,11 @@ void printEM4x05info(uint8_t chipType, uint8_t cap, uint16_t custCode, uint32_t
 }
 
 void printEM4x05ProtectionBits(uint32_t wordData) {
-       for (uint8_t i = 0; i < 14; i++) {
-               PrintAndLog("      Word:  %02u | %s", i, (((1 << i) & wordData ) || i < 2) ? "Is Locked" : "Is Not Locked");
+       for (uint8_t i = 0; i < 15; i++) {
+               PrintAndLog("      Word:  %02u | %s", i, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+               if (i==14) {
+                       PrintAndLog("      Word:  %02u | %s", i+1, (((1 << i) & wordData ) || i < 2) ? "Is Write Locked" : "Is Not Write Locked");
+               }
        }
 }