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CHG: Updated the README.md
[proxmark3-svn] / client / cmdhfmf.c
diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index b2d5494fb0226e6cdef814fb36f8a3ac5af7c03d..ba8295ec9aa7337c38578436426d1b8a8028d30d 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -20,8 +20,18 @@ int CmdHF14AMifare(const char *Cmd)
        uint32_t nt = 0, nr = 0;\r
        uint64_t par_list = 0, ks_list = 0, r_key = 0;\r
        int16_t isOK = 0;\r
        uint32_t nt = 0, nr = 0;\r
        uint64_t par_list = 0, ks_list = 0, r_key = 0;\r
        int16_t isOK = 0;\r
-\r
-       UsbCommand c = {CMD_READER_MIFARE, {true, 0, 0}};\r
+       int tmpchar; \r
+       uint8_t blockNo = 0;\r
+       \r
+       char cmdp = param_getchar(Cmd, 0);      \r
+       if ( cmdp == 'H' || cmdp == 'h') {\r
+               PrintAndLog("Usage:  hf mf mifare <block number>");\r
+               PrintAndLog("        sample: hf mf mifare 0");\r
+               return 0;\r
+       }       \r
+       \r
+       blockNo = param_get8(Cmd, 0);\r
+       UsbCommand c = {CMD_READER_MIFARE, {true, blockNo, 0}};\r
 \r
        // message\r
        printf("-------------------------------------------------------------------------\n");\r
 \r
        // message\r
        printf("-------------------------------------------------------------------------\n");\r
@@ -29,32 +39,32 @@ int CmdHF14AMifare(const char *Cmd)
        printf("Press button on the proxmark3 device to abort both proxmark3 and client.\n");\r
        printf("-------------------------------------------------------------------------\n");\r
 \r
        printf("Press button on the proxmark3 device to abort both proxmark3 and client.\n");\r
        printf("-------------------------------------------------------------------------\n");\r
 \r
+       clock_t t1 = clock();\r
        \r
 start:\r
     clearCommandBuffer();\r
     SendCommand(&c);\r
        \r
        //flush queue\r
        \r
 start:\r
     clearCommandBuffer();\r
     SendCommand(&c);\r
        \r
        //flush queue\r
-       while (ukbhit()) getchar();\r
+       while (ukbhit()) {\r
+               tmpchar = getchar();\r
+               (void)tmpchar;\r
+       }\r
 \r
        // wait cycle\r
        while (true) {\r
         printf(".");\r
                fflush(stdout);\r
                if (ukbhit()) {\r
 \r
        // wait cycle\r
        while (true) {\r
         printf(".");\r
                fflush(stdout);\r
                if (ukbhit()) {\r
-                       getchar();\r
+                       tmpchar = getchar();\r
+                       (void)tmpchar;\r
                        printf("\naborted via keyboard!\n");\r
                        break;\r
                }\r
                \r
                UsbCommand resp;\r
                        printf("\naborted via keyboard!\n");\r
                        break;\r
                }\r
                \r
                UsbCommand resp;\r
-               if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) {\r
+               if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {\r
                        isOK  = resp.arg[0];\r
                        isOK  = resp.arg[0];\r
-                       uid = (uint32_t)bytes_to_num(resp.d.asBytes +  0, 4);\r
-                       nt =  (uint32_t)bytes_to_num(resp.d.asBytes +  4, 4);\r
-                       par_list = bytes_to_num(resp.d.asBytes +  8, 8);\r
-                       ks_list = bytes_to_num(resp.d.asBytes +  16, 8);\r
-                       nr = bytes_to_num(resp.d.asBytes + 24, 4);\r
                        printf("\n\n");\r
                        switch (isOK) {\r
                                case -1 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
                        printf("\n\n");\r
                        switch (isOK) {\r
                                case -1 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
@@ -64,6 +74,11 @@ start:
                                                  PrintAndLog("generating polynomial with 16 effective bits only, but shows unexpected behaviour.\n"); break;\r
                                default: ;\r
                        }\r
                                                  PrintAndLog("generating polynomial with 16 effective bits only, but shows unexpected behaviour.\n"); break;\r
                                default: ;\r
                        }\r
+                       uid = (uint32_t)bytes_to_num(resp.d.asBytes +  0, 4);\r
+                       nt =  (uint32_t)bytes_to_num(resp.d.asBytes +  4, 4);\r
+                       par_list = bytes_to_num(resp.d.asBytes +  8, 8);\r
+                       ks_list = bytes_to_num(resp.d.asBytes +  16, 8);\r
+                       nr = bytes_to_num(resp.d.asBytes + 24, 4);\r
                        break;\r
                }\r
        }       \r
                        break;\r
                }\r
        }       \r
@@ -81,12 +96,12 @@ start:
                c.arg[0] = false;\r
                goto start;\r
        } else {\r
                c.arg[0] = false;\r
                goto start;\r
        } else {\r
-               isOK = 0;\r
-               printf("------------------------------------------------------------------\n");\r
                PrintAndLog("Found valid key: %012"llx" \n", r_key);\r
        }\r
        \r
                PrintAndLog("Found valid key: %012"llx" \n", r_key);\r
        }\r
        \r
-       PrintAndLog("");\r
+       t1 = clock() - t1;\r
+       if ( t1 > 0 )\r
+               PrintAndLog("Time in darkside: %.0f ticks\n", (float)t1);\r
        return 0;\r
 }\r
 \r
        return 0;\r
 }\r
 \r
@@ -305,8 +320,10 @@ int CmdHF14AMfDump(const char *Cmd)
        }\r
        \r
        // Read keys A from file\r
        }\r
        \r
        // Read keys A from file\r
+       size_t bytes_read;\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
-               if (fread( keyA[sectorNo], 1, 6, fin ) == 0) {\r
+               bytes_read = fread( keyA[sectorNo], 1, 6, fin );\r
+               if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                        return 2;\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                        return 2;\r
@@ -315,7 +332,8 @@ int CmdHF14AMfDump(const char *Cmd)
        \r
        // Read keys B from file\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
        \r
        // Read keys B from file\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
-               if (fread( keyB[sectorNo], 1, 6, fin ) == 0) {\r
+               bytes_read = fread( keyB[sectorNo], 1, 6, fin );\r
+               if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                        return 2;\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                        return 2;\r
@@ -472,8 +490,10 @@ int CmdHF14AMfRestore(const char *Cmd)
                return 1;\r
        }\r
        \r
                return 1;\r
        }\r
        \r
+       size_t bytes_read;\r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
-               if (fread(keyA[sectorNo], 1, 6, fkeys) == 0) {\r
+               bytes_read = fread( keyA[sectorNo], 1, 6, fkeys );\r
+               if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                        return 2;\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                        return 2;\r
@@ -481,7 +501,8 @@ int CmdHF14AMfRestore(const char *Cmd)
        }\r
 \r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
        }\r
 \r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
-               if (fread(keyB[sectorNo], 1, 6, fkeys) == 0) {\r
+               bytes_read = fread( keyB[sectorNo], 1, 6, fkeys );\r
+               if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                        return 2;\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                        return 2;\r
@@ -499,9 +520,9 @@ int CmdHF14AMfRestore(const char *Cmd)
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
                for(blockNo = 0; blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        UsbCommand c = {CMD_MIFARE_WRITEBL, {FirstBlockOfSector(sectorNo) + blockNo, keyType, 0}};\r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
                for(blockNo = 0; blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        UsbCommand c = {CMD_MIFARE_WRITEBL, {FirstBlockOfSector(sectorNo) + blockNo, keyType, 0}};\r
-                       memcpy(c.d.asBytes, key, 6);\r
-                       \r
-                       if (fread(bldata, 1, 16, fdump) == 0) {\r
+                       memcpy(c.d.asBytes, key, 6);                    \r
+                       bytes_read = fread(bldata, 1, 16, fdump);\r
+                       if ( bytes_read == 0) {\r
                                PrintAndLog("File reading error (dumpdata.bin).");\r
                                fclose(fdump);\r
                                return 2;\r
                                PrintAndLog("File reading error (dumpdata.bin).");\r
                                fclose(fdump);\r
                                return 2;\r
@@ -552,7 +573,7 @@ int CmdHF14AMfNested(const char *Cmd)
        uint8_t trgKeyType = 0;\r
        uint8_t SectorsCnt = 0;\r
        uint8_t key[6] = {0, 0, 0, 0, 0, 0};\r
        uint8_t trgKeyType = 0;\r
        uint8_t SectorsCnt = 0;\r
        uint8_t key[6] = {0, 0, 0, 0, 0, 0};\r
-       uint8_t keyBlock[14*6];\r
+       uint8_t keyBlock[6*6];\r
        uint64_t key64 = 0;\r
        bool transferToEml = false;\r
        \r
        uint64_t key64 = 0;\r
        bool transferToEml = false;\r
        \r
@@ -572,10 +593,11 @@ int CmdHF14AMfNested(const char *Cmd)
                PrintAndLog("t - transfer keys into emulator memory");\r
                PrintAndLog("d - write keys to binary file");\r
                PrintAndLog(" ");\r
                PrintAndLog("t - transfer keys into emulator memory");\r
                PrintAndLog("d - write keys to binary file");\r
                PrintAndLog(" ");\r
-               PrintAndLog("      sample1: hf mf nested 1 0 A FFFFFFFFFFFF ");\r
-               PrintAndLog("      sample2: hf mf nested 1 0 A FFFFFFFFFFFF t ");\r
-               PrintAndLog("      sample3: hf mf nested 1 0 A FFFFFFFFFFFF d ");\r
-               PrintAndLog("      sample4: hf mf nested o 0 A FFFFFFFFFFFF 4 A");\r
+               PrintAndLog(" samples:");\r
+               PrintAndLog("              hf mf nested 1 0 A FFFFFFFFFFFF ");\r
+               PrintAndLog("              hf mf nested 1 0 A FFFFFFFFFFFF t ");\r
+               PrintAndLog("              hf mf nested 1 0 A FFFFFFFFFFFF d ");\r
+               PrintAndLog("              hf mf nested o 0 A FFFFFFFFFFFF 4 A");\r
                return 0;\r
        }       \r
        \r
                return 0;\r
        }       \r
        \r
@@ -626,44 +648,38 @@ int CmdHF14AMfNested(const char *Cmd)
        transferToEml |= (ctmp == 'd' || ctmp == 'D');\r
        \r
        if (cmdp == 'o') {\r
        transferToEml |= (ctmp == 'd' || ctmp == 'D');\r
        \r
        if (cmdp == 'o') {\r
-               PrintAndLog("--target block no:%3d, target key type:%c ", trgBlockNo, trgKeyType?'B':'A');\r
                int16_t isOK = mfnested(blockNo, keyType, key, trgBlockNo, trgKeyType, keyBlock, true);\r
                int16_t isOK = mfnested(blockNo, keyType, key, trgBlockNo, trgKeyType, keyBlock, true);\r
-               if (isOK) {\r
-                       switch (isOK) {\r
-                               case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break;\r
-                               case -2 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
-                               case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break;\r
-                               default : PrintAndLog("Unknown Error.\n");\r
-                       }\r
-                       return 2;\r
-               }\r
-               key64 = bytes_to_num(keyBlock, 6);\r
-               if (key64) {\r
-                       PrintAndLog("Found valid key:%012"llx, key64);\r
-\r
-                       // transfer key to the emulator\r
-                       if (transferToEml) {\r
-                               uint8_t sectortrailer;\r
-                               if (trgBlockNo < 32*4) {        // 4 block sector\r
-                                       sectortrailer = (trgBlockNo & 0x03) + 3;\r
-                               } else {                                        // 16 block sector\r
-                                       sectortrailer = (trgBlockNo & 0x0f) + 15;\r
+               switch (isOK) {\r
+                       case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break;\r
+                       case -2 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
+                       case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break;\r
+                       case -4 : PrintAndLog("No valid key found"); break;\r
+                       case -5 : \r
+                               key64 = bytes_to_num(keyBlock, 6);\r
+\r
+                               // transfer key to the emulator\r
+                               if (transferToEml) {\r
+                                       uint8_t sectortrailer;\r
+                                       if (trgBlockNo < 32*4) {        // 4 block sector\r
+                                               sectortrailer = (trgBlockNo & 0x03) + 3;\r
+                                       } else {                                        // 16 block sector\r
+                                               sectortrailer = (trgBlockNo & 0x0f) + 15;\r
+                                       }\r
+                                       mfEmlGetMem(keyBlock, sectortrailer, 1);\r
+                       \r
+                                       if (!trgKeyType)\r
+                                               num_to_bytes(key64, 6, keyBlock);\r
+                                       else\r
+                                               num_to_bytes(key64, 6, &keyBlock[10]);\r
+                                       mfEmlSetMem(keyBlock, sectortrailer, 1);                \r
                                }\r
                                }\r
-                               mfEmlGetMem(keyBlock, sectortrailer, 1);\r
-               \r
-                               if (!trgKeyType)\r
-                                       num_to_bytes(key64, 6, keyBlock);\r
-                               else\r
-                                       num_to_bytes(key64, 6, &keyBlock[10]);\r
-                               mfEmlSetMem(keyBlock, sectortrailer, 1);                \r
-                       }\r
-               } else {\r
-                       PrintAndLog("No valid key found");\r
+                               return 0;\r
+                       default : PrintAndLog("Unknown Error.\n");\r
                }\r
                }\r
+               return 2;\r
        }\r
        else { // ------------------------------------  multiple sectors working\r
        }\r
        else { // ------------------------------------  multiple sectors working\r
-               clock_t time1;\r
-               time1 = clock();\r
+               clock_t t1 = clock();\r
 \r
                e_sector = calloc(SectorsCnt, sizeof(sector));\r
                if (e_sector == NULL) return 1;\r
 \r
                e_sector = calloc(SectorsCnt, sizeof(sector));\r
                if (e_sector == NULL) return 1;\r
@@ -675,14 +691,6 @@ int CmdHF14AMfNested(const char *Cmd)
                num_to_bytes(0xa0a1a2a3a4a5, 6, (uint8_t*)(keyBlock + 3 * 6));\r
                num_to_bytes(0xb0b1b2b3b4b5, 6, (uint8_t*)(keyBlock + 4 * 6));\r
                num_to_bytes(0xaabbccddeeff, 6, (uint8_t*)(keyBlock + 5 * 6));\r
                num_to_bytes(0xa0a1a2a3a4a5, 6, (uint8_t*)(keyBlock + 3 * 6));\r
                num_to_bytes(0xb0b1b2b3b4b5, 6, (uint8_t*)(keyBlock + 4 * 6));\r
                num_to_bytes(0xaabbccddeeff, 6, (uint8_t*)(keyBlock + 5 * 6));\r
-               num_to_bytes(0x4d3a99c351dd, 6, (uint8_t*)(keyBlock + 6 * 6));\r
-               num_to_bytes(0x1a982c7e459a, 6, (uint8_t*)(keyBlock + 7 * 6));\r
-               num_to_bytes(0xd3f7d3f7d3f7, 6, (uint8_t*)(keyBlock + 8 * 6));\r
-               num_to_bytes(0x714c5c886e97, 6, (uint8_t*)(keyBlock + 9 * 6));\r
-               num_to_bytes(0x587ee5f9350f, 6, (uint8_t*)(keyBlock + 10 * 6));\r
-               num_to_bytes(0xa0478cc39091, 6, (uint8_t*)(keyBlock + 11 * 6));\r
-               num_to_bytes(0x533cb6c723f6, 6, (uint8_t*)(keyBlock + 12 * 6));\r
-               num_to_bytes(0x8fd0a4f256e9, 6, (uint8_t*)(keyBlock + 13 * 6));\r
 \r
                PrintAndLog("Testing known keys. Sector count=%d", SectorsCnt);\r
                for (i = 0; i < SectorsCnt; i++) {\r
 \r
                PrintAndLog("Testing known keys. Sector count=%d", SectorsCnt);\r
                for (i = 0; i < SectorsCnt; i++) {\r
@@ -693,58 +701,88 @@ int CmdHF14AMfNested(const char *Cmd)
                                \r
                                if (!res) {\r
                                        e_sector[i].Key[j] = key64;\r
                                \r
                                if (!res) {\r
                                        e_sector[i].Key[j] = key64;\r
-                                       e_sector[i].foundKey[j] = 1;\r
+                                       e_sector[i].foundKey[j] = TRUE;\r
                                }\r
                        }\r
                }\r
                                }\r
                        }\r
                }\r
+               clock_t t2 = clock() - t1;\r
+               if ( t2 > 0 )\r
+                       PrintAndLog("Time to check 6 known keys: %.0f ticks", (float)t2 );\r
+\r
+               PrintAndLog("enter nested..."); \r
                \r
                // nested sectors\r
                iterations = 0;\r
                \r
                // nested sectors\r
                iterations = 0;\r
-               PrintAndLog("nested...");\r
                bool calibrate = true;\r
                bool calibrate = true;\r
+\r
                for (i = 0; i < NESTED_SECTOR_RETRY; i++) {\r
                for (i = 0; i < NESTED_SECTOR_RETRY; i++) {\r
-                       for (uint8_t sectorNo = 0; sectorNo < SectorsCnt; sectorNo++) {\r
-                               for (trgKeyType = 0; trgKeyType < 2; trgKeyType++) { \r
+                       for (uint8_t sectorNo = 0; sectorNo < SectorsCnt; ++sectorNo) {\r
+                               for (trgKeyType = 0; trgKeyType < 2; ++trgKeyType) { \r
+\r
                                        if (e_sector[sectorNo].foundKey[trgKeyType]) continue;\r
                                        if (e_sector[sectorNo].foundKey[trgKeyType]) continue;\r
-                                       PrintAndLog("-----------------------------------------------");\r
+                                       \r
                                        int16_t isOK = mfnested(blockNo, keyType, key, FirstBlockOfSector(sectorNo), trgKeyType, keyBlock, calibrate);\r
                                        int16_t isOK = mfnested(blockNo, keyType, key, FirstBlockOfSector(sectorNo), trgKeyType, keyBlock, calibrate);\r
-                                       if(isOK) {\r
-                                               switch (isOK) {\r
-                                                       case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break;\r
-                                                       case -2 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
-                                                       case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break;\r
-                                                       default : PrintAndLog("Unknown Error.\n");\r
-                                               }\r
-                                               free(e_sector);\r
-                                               return 2;\r
-                                       } else {\r
-                                               calibrate = false;\r
+                                       switch (isOK) {\r
+                                               case -1 : PrintAndLog("Error: No response from Proxmark.\n"); break;\r
+                                               case -2 : PrintAndLog("Button pressed. Aborted.\n"); break;\r
+                                               case -3 : PrintAndLog("Tag isn't vulnerable to Nested Attack (random numbers are not predictable).\n"); break;\r
+                                               case -4 : //key not found\r
+                                                       calibrate = false;\r
+                                                       iterations++;\r
+                                                       continue; \r
+                                               case -5 :\r
+                                                       calibrate = false;\r
+                                                       iterations++;\r
+                                                       e_sector[sectorNo].foundKey[trgKeyType] = 1;\r
+                                                       e_sector[sectorNo].Key[trgKeyType] = bytes_to_num(keyBlock, 6);\r
+                                                       continue;\r
+                                                       \r
+                                               default : PrintAndLog("Unknown Error.\n");\r
                                        }\r
                                        }\r
-                                       \r
-                                       iterations++;\r
+                                       free(e_sector);\r
+                                       return 2;\r
+                               }\r
+                       }\r
+               }\r
+               \r
+               t1 = clock() - t1;\r
+               if ( t1 > 0 )\r
+                       PrintAndLog("Time in nested: %.0f ticks \n", (float)t1);\r
 \r
 \r
-                                       key64 = bytes_to_num(keyBlock, 6);\r
-                                       if (key64) {\r
-                                               PrintAndLog("Found valid key:%012"llx, key64);\r
-                                               e_sector[sectorNo].foundKey[trgKeyType] = 1;\r
-                                               e_sector[sectorNo].Key[trgKeyType] = key64;\r
-                                       }\r
+               // 20160116 If Sector A is found, but not Sector B,  try just reading it of the tag?\r
+               PrintAndLog("trying to read key B...");\r
+               for (i = 0; i < SectorsCnt; i++) {\r
+                       // KEY A  but not KEY B\r
+                       if ( e_sector[i].foundKey[0] && !e_sector[i].foundKey[1] ) {\r
+                               \r
+                               uint8_t sectrail = (FirstBlockOfSector(i) + NumBlocksPerSector(i) - 1);\r
+                               \r
+                               PrintAndLog("Reading block %d", sectrail);\r
+                                                       \r
+                               UsbCommand c = {CMD_MIFARE_READBL, {sectrail, 0, 0}};\r
+                               num_to_bytes(e_sector[i].Key[0], 6, c.d.asBytes); // KEY A\r
+                               clearCommandBuffer();\r
+                               SendCommand(&c);\r
+\r
+                               UsbCommand resp;\r
+                               if ( !WaitForResponseTimeout(CMD_ACK,&resp,1500)) continue;\r
+                                       \r
+                               uint8_t isOK  = resp.arg[0] & 0xff;\r
+                               if (!isOK) continue;\r
+\r
+                               uint8_t *data = resp.d.asBytes;\r
+                               key64 = bytes_to_num(data+10, 6);\r
+                               if (key64) {\r
+                                       PrintAndLog("Data:%s", sprint_hex(data+10, 6));\r
+                                       e_sector[i].foundKey[1] = TRUE;\r
+                                       e_sector[i].Key[1] = key64;\r
                                }\r
                        }\r
                }\r
 \r
                                }\r
                        }\r
                }\r
 \r
-               printf("Time in nested: %1.3f (%1.3f sec per key)\n\n", ((float)clock() - time1)/CLOCKS_PER_SEC, ((float)clock() - time1)/iterations/CLOCKS_PER_SEC);\r
                \r
                \r
-               PrintAndLog("-----------------------------------------------\nIterations count: %d\n\n", iterations);\r
                //print them\r
                //print them\r
-               PrintAndLog("|---|----------------|---|----------------|---|");\r
-               PrintAndLog("|sec|key A           |res|key B           |res|");\r
-               PrintAndLog("|---|----------------|---|----------------|---|");\r
-               for (i = 0; i < SectorsCnt; i++) {\r
-                       PrintAndLog("|%03d|  %012"llx"  | %d |  %012"llx"  | %d |", i,\r
-                               e_sector[i].Key[0], e_sector[i].foundKey[0], e_sector[i].Key[1], e_sector[i].foundKey[1]);\r
-               }\r
-               PrintAndLog("|---|----------------|---|----------------|---|");\r
+               printKeyTable( SectorsCnt, e_sector );\r
                \r
                // transfer them to the emulator\r
                if (transferToEml) {\r
                \r
                // transfer them to the emulator\r
                if (transferToEml) {\r
@@ -804,7 +842,7 @@ int CmdHF14AMfNestedHard(const char *Cmd)
        char ctmp;\r
        ctmp = param_getchar(Cmd, 0);\r
 \r
        char ctmp;\r
        ctmp = param_getchar(Cmd, 0);\r
 \r
-       if (ctmp != 'R' && ctmp != 'r' && strlen(Cmd) < 20) {\r
+       if (ctmp != 'R' && ctmp != 'r' && ctmp != 'T' && ctmp != 't' && strlen(Cmd) < 20) {\r
                PrintAndLog("Usage:");\r
                PrintAndLog("      hf mf hardnested <block number> <key A|B> <key (12 hex symbols)>");\r
                PrintAndLog("                       <target block number> <target key A|B> [known target key (12 hex symbols)] [w] [s]");\r
                PrintAndLog("Usage:");\r
                PrintAndLog("      hf mf hardnested <block number> <key A|B> <key (12 hex symbols)>");\r
                PrintAndLog("                       <target block number> <target key A|B> [known target key (12 hex symbols)] [w] [s]");\r
@@ -829,15 +867,17 @@ int CmdHF14AMfNestedHard(const char *Cmd)
        bool nonce_file_read = false;\r
        bool nonce_file_write = false;\r
        bool slow = false;\r
        bool nonce_file_read = false;\r
        bool nonce_file_write = false;\r
        bool slow = false;\r
+       int tests = 0;\r
+       \r
        \r
        if (ctmp == 'R' || ctmp == 'r') {\r
                nonce_file_read = true;\r
                if (!param_gethex(Cmd, 1, trgkey, 12)) {\r
                        know_target_key = true;\r
                }\r
        \r
        if (ctmp == 'R' || ctmp == 'r') {\r
                nonce_file_read = true;\r
                if (!param_gethex(Cmd, 1, trgkey, 12)) {\r
                        know_target_key = true;\r
                }\r
-\r
+       } else if (ctmp == 'T' || ctmp == 't') {\r
+               tests = param_get32ex(Cmd, 1, 100, 10);\r
        } else {\r
        } else {\r
-\r
                blockNo = param_get8(Cmd, 0);\r
                ctmp = param_getchar(Cmd, 1);\r
                if (ctmp != 'a' && ctmp != 'A' && ctmp != 'b' && ctmp != 'B') {\r
                blockNo = param_get8(Cmd, 0);\r
                ctmp = param_getchar(Cmd, 1);\r
                if (ctmp != 'a' && ctmp != 'A' && ctmp != 'b' && ctmp != 'B') {\r
@@ -883,15 +923,16 @@ int CmdHF14AMfNestedHard(const char *Cmd)
                }\r
        }\r
 \r
                }\r
        }\r
 \r
-       PrintAndLog("--target block no:%3d, target key type:%c, known target key: 0x%02x%02x%02x%02x%02x%02x%s, file action: %s, Slow: %s ", \r
+       PrintAndLog("--target block no:%3d, target key type:%c, known target key: 0x%02x%02x%02x%02x%02x%02x%s, file action: %s, Slow: %s, Tests: %d ", \r
                        trgBlockNo, \r
                        trgKeyType?'B':'A', \r
                        trgkey[0], trgkey[1], trgkey[2], trgkey[3], trgkey[4], trgkey[5],\r
                        know_target_key?"":" (not set)",\r
                        nonce_file_write?"write":nonce_file_read?"read":"none",\r
                        trgBlockNo, \r
                        trgKeyType?'B':'A', \r
                        trgkey[0], trgkey[1], trgkey[2], trgkey[3], trgkey[4], trgkey[5],\r
                        know_target_key?"":" (not set)",\r
                        nonce_file_write?"write":nonce_file_read?"read":"none",\r
-                       slow?"Yes":"No");\r
+                       slow?"Yes":"No",\r
+                       tests);\r
 \r
 \r
-       int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key?trgkey:NULL, nonce_file_read, nonce_file_write, slow);\r
+       int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key?trgkey:NULL, nonce_file_read, nonce_file_write, slow, tests);\r
 \r
        if (isOK) {\r
                switch (isOK) {\r
 \r
        if (isOK) {\r
                switch (isOK) {\r
@@ -925,6 +966,8 @@ int CmdHF14AMfChk(const char *Cmd)
        uint8_t *keyBlock = NULL, *p;\r
        uint8_t stKeyBlock = 20;\r
        \r
        uint8_t *keyBlock = NULL, *p;\r
        uint8_t stKeyBlock = 20;\r
        \r
+       sector *e_sector = NULL;\r
+       \r
        int i, res;\r
        int     keycnt = 0;\r
        char ctmp       = 0x00;\r
        int i, res;\r
        int     keycnt = 0;\r
        char ctmp       = 0x00;\r
@@ -933,14 +976,15 @@ int CmdHF14AMfChk(const char *Cmd)
        uint8_t keyType = 0;\r
        uint64_t key64 = 0;\r
        \r
        uint8_t keyType = 0;\r
        uint64_t key64 = 0;\r
        \r
+       uint8_t tempkey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};\r
+               \r
        int transferToEml = 0;\r
        int createDumpFile = 0;\r
 \r
        keyBlock = calloc(stKeyBlock, 6);\r
        if (keyBlock == NULL) return 1;\r
 \r
        int transferToEml = 0;\r
        int createDumpFile = 0;\r
 \r
        keyBlock = calloc(stKeyBlock, 6);\r
        if (keyBlock == NULL) return 1;\r
 \r
-       uint64_t defaultKeys[] =\r
-       {\r
+       uint64_t defaultKeys[] = {\r
                0xffffffffffff, // Default key (first key used by program if no user defined key)\r
                0x000000000000, // Blank key\r
                0xa0a1a2a3a4a5, // NFCForum MAD key\r
                0xffffffffffff, // Default key (first key used by program if no user defined key)\r
                0x000000000000, // Blank key\r
                0xa0a1a2a3a4a5, // NFCForum MAD key\r
@@ -958,9 +1002,8 @@ int CmdHF14AMfChk(const char *Cmd)
        int defaultKeysSize = sizeof(defaultKeys) / sizeof(uint64_t);\r
 \r
        for (int defaultKeyCounter = 0; defaultKeyCounter < defaultKeysSize; defaultKeyCounter++)\r
        int defaultKeysSize = sizeof(defaultKeys) / sizeof(uint64_t);\r
 \r
        for (int defaultKeyCounter = 0; defaultKeyCounter < defaultKeysSize; defaultKeyCounter++)\r
-       {\r
                num_to_bytes(defaultKeys[defaultKeyCounter], 6, (uint8_t*)(keyBlock + defaultKeyCounter * 6));\r
                num_to_bytes(defaultKeys[defaultKeyCounter], 6, (uint8_t*)(keyBlock + defaultKeyCounter * 6));\r
-       }\r
+\r
        \r
        if (param_getchar(Cmd, 0)=='*') {\r
                blockNo = 3;\r
        \r
        if (param_getchar(Cmd, 0)=='*') {\r
                blockNo = 3;\r
@@ -971,9 +1014,9 @@ int CmdHF14AMfChk(const char *Cmd)
                        case '4': SectorsCnt = 40; break;\r
                        default:  SectorsCnt = 16;\r
                }\r
                        case '4': SectorsCnt = 40; break;\r
                        default:  SectorsCnt = 16;\r
                }\r
-       }\r
-       else\r
+       } else {\r
                blockNo = param_get8(Cmd, 0);\r
                blockNo = param_get8(Cmd, 0);\r
+       }\r
        \r
        ctmp = param_getchar(Cmd, 1);\r
        switch (ctmp) { \r
        \r
        ctmp = param_getchar(Cmd, 1);\r
        switch (ctmp) { \r
@@ -988,6 +1031,7 @@ int CmdHF14AMfChk(const char *Cmd)
                break;\r
        default:\r
                PrintAndLog("Key type must be A , B or ?");\r
                break;\r
        default:\r
                PrintAndLog("Key type must be A , B or ?");\r
+               free(keyBlock);\r
                return 1;\r
        };\r
        \r
                return 1;\r
        };\r
        \r
@@ -1006,7 +1050,7 @@ int CmdHF14AMfChk(const char *Cmd)
                                }\r
                                keyBlock = p;\r
                        }\r
                                }\r
                                keyBlock = p;\r
                        }\r
-                       PrintAndLog("chk key[%2d] %02x%02x%02x%02x%02x%02x", keycnt,\r
+                       PrintAndLog("key[%2d] %02x%02x%02x%02x%02x%02x", keycnt,\r
                        (keyBlock + 6*keycnt)[0],(keyBlock + 6*keycnt)[1], (keyBlock + 6*keycnt)[2],\r
                        (keyBlock + 6*keycnt)[3], (keyBlock + 6*keycnt)[4],     (keyBlock + 6*keycnt)[5], 6);\r
                        keycnt++;\r
                        (keyBlock + 6*keycnt)[0],(keyBlock + 6*keycnt)[1], (keyBlock + 6*keycnt)[2],\r
                        (keyBlock + 6*keycnt)[3], (keyBlock + 6*keycnt)[4],     (keyBlock + 6*keycnt)[5], 6);\r
                        keycnt++;\r
@@ -1039,13 +1083,14 @@ int CmdHF14AMfChk(const char *Cmd)
                                                if (!p) {\r
                                                        PrintAndLog("Cannot allocate memory for defKeys");\r
                                                        free(keyBlock);\r
                                                if (!p) {\r
                                                        PrintAndLog("Cannot allocate memory for defKeys");\r
                                                        free(keyBlock);\r
+                                                       fclose(f);\r
                                                        return 2;\r
                                                }\r
                                                keyBlock = p;\r
                                        }\r
                                        memset(keyBlock + 6 * keycnt, 0, 6);\r
                                        num_to_bytes(strtoll(buf, NULL, 16), 6, keyBlock + 6*keycnt);\r
                                                        return 2;\r
                                                }\r
                                                keyBlock = p;\r
                                        }\r
                                        memset(keyBlock + 6 * keycnt, 0, 6);\r
                                        num_to_bytes(strtoll(buf, NULL, 16), 6, keyBlock + 6*keycnt);\r
-                                       PrintAndLog("chk custom key[%2d] %012"llx, keycnt, bytes_to_num(keyBlock + 6*keycnt, 6));\r
+                                       PrintAndLog("check key[%2d] %012"llx, keycnt, bytes_to_num(keyBlock + 6*keycnt, 6));\r
                                        keycnt++;\r
                                        memset(buf, 0, sizeof(buf));\r
                                }\r
                                        keycnt++;\r
                                        memset(buf, 0, sizeof(buf));\r
                                }\r
@@ -1062,80 +1107,147 @@ int CmdHF14AMfChk(const char *Cmd)
        if (keycnt == 0) {\r
                PrintAndLog("No key specified, trying default keys");\r
                for (;keycnt < defaultKeysSize; keycnt++)\r
        if (keycnt == 0) {\r
                PrintAndLog("No key specified, trying default keys");\r
                for (;keycnt < defaultKeysSize; keycnt++)\r
-                       PrintAndLog("chk default key[%2d] %02x%02x%02x%02x%02x%02x", keycnt,\r
+                       PrintAndLog("key[%2d] %02x%02x%02x%02x%02x%02x", keycnt,\r
                                (keyBlock + 6*keycnt)[0],(keyBlock + 6*keycnt)[1], (keyBlock + 6*keycnt)[2],\r
                                (keyBlock + 6*keycnt)[3], (keyBlock + 6*keycnt)[4],     (keyBlock + 6*keycnt)[5], 6);\r
        }\r
        \r
        // initialize storage for found keys\r
                                (keyBlock + 6*keycnt)[0],(keyBlock + 6*keycnt)[1], (keyBlock + 6*keycnt)[2],\r
                                (keyBlock + 6*keycnt)[3], (keyBlock + 6*keycnt)[4],     (keyBlock + 6*keycnt)[5], 6);\r
        }\r
        \r
        // initialize storage for found keys\r
-       bool validKey[2][40];\r
-       uint8_t foundKey[2][40][6];\r
-       for (uint16_t t = 0; t < 2; t++) {\r
-               for (uint16_t sectorNo = 0; sectorNo < SectorsCnt; sectorNo++) {\r
-                       validKey[t][sectorNo] = false;\r
-                       for (uint16_t i = 0; i < 6; i++) {\r
-                               foundKey[t][sectorNo][i] = 0xff;\r
-                       }\r
-               }\r
+       e_sector = calloc(SectorsCnt, sizeof(sector));\r
+       if (e_sector == NULL) {\r
+               free(keyBlock);\r
+               return 1;\r
        }\r
        }\r
+\r
+       uint8_t trgKeyType = 0;\r
+       uint32_t max_keys = keycnt > (USB_CMD_DATA_SIZE/6) ? (USB_CMD_DATA_SIZE/6) : keycnt;\r
+       \r
+       // time\r
+       clock_t t1 = clock();\r
        \r
        \r
-       for ( int t = !keyType; t < 2; keyType==2?(t++):(t=2) ) {\r
-               int b=blockNo;\r
+       // check keys.\r
+       for (trgKeyType = !keyType;  trgKeyType < 2;  (keyType==2) ? (++trgKeyType) : (trgKeyType=2) ) {\r
+\r
+               int b = blockNo;\r
                for (int i = 0; i < SectorsCnt; ++i) {\r
                for (int i = 0; i < SectorsCnt; ++i) {\r
-                       PrintAndLog("--sector:%2d, block:%3d, key type:%C, key count:%2d ", i, b, t?'B':'A', keycnt);\r
-                       uint32_t max_keys = keycnt>USB_CMD_DATA_SIZE/6?USB_CMD_DATA_SIZE/6:keycnt;\r
-                       for (uint32_t c = 0; c < keycnt; c+=max_keys) {\r
-                               uint32_t size = keycnt-c>max_keys?max_keys:keycnt-c;\r
-                               res = mfCheckKeys(b, t, true, size, &keyBlock[6*c], &key64);\r
-                               if (res != 1) {\r
-                                       if (!res) {\r
-                                               PrintAndLog("Found valid key:[%012"llx"]",key64);\r
-                                               num_to_bytes(key64, 6, foundKey[t][i]);\r
-                                               validKey[t][i] = true;\r
-                                       } \r
-                               } else {\r
-                                       PrintAndLog("Command execute timeout");\r
+                       \r
+                       // skip already found keys.\r
+                       if (e_sector[i].foundKey[trgKeyType]) continue;\r
+                       \r
+                       \r
+                       for (uint32_t c = 0; c < keycnt; c += max_keys) {\r
+                               \r
+                               uint32_t size = keycnt-c > max_keys ? max_keys : keycnt-c;\r
+                               \r
+                               res = mfCheckKeys(b, trgKeyType, true, size, &keyBlock[6*c], &key64);\r
+                               if (!res) {\r
+                                       //PrintAndLog("Sector:%3d Block:%3d, key type: %C  -- Found key [%012"llx"]", i, b, trgKeyType ? 'B':'A', key64);\r
+                                                                                \r
+                                       e_sector[i].Key[trgKeyType] = key64;\r
+                                       e_sector[i].foundKey[trgKeyType] = TRUE;\r
+                                       break;\r
+                               } else {                                        \r
+                                       e_sector[i].Key[trgKeyType] = 0xffffffffffff;\r
+                                       e_sector[i].foundKey[trgKeyType] = FALSE;\r
                                }\r
                                }\r
+                               printf(".");\r
                        }\r
                        }\r
-                       b<127?(b+=4):(b+=16);   \r
+                       b < 127 ? ( b +=4 ) : ( b += 16 );      \r
                }\r
        }\r
                }\r
        }\r
+       t1 = clock() - t1;\r
+       if ( t1 > 0 )\r
+               printf("\nTime in checkkeys: %.0f ticks\n", (float)t1);\r
+\r
+       // 20160116 If Sector A is found, but not Sector B,  try just reading it of the tag?\r
+       PrintAndLog("testing to read B...");\r
+       for (i = 0; i < SectorsCnt; i++) {\r
+               // KEY A  but not KEY B\r
+               if ( e_sector[i].foundKey[0] && !e_sector[i].foundKey[1] ) {\r
+                                               \r
+                       uint8_t sectrail = (FirstBlockOfSector(i) + NumBlocksPerSector(i) - 1);\r
+                       \r
+                       PrintAndLog("Reading block %d", sectrail);\r
+                       \r
+                       UsbCommand c = {CMD_MIFARE_READBL, {sectrail, 0, 0}};\r
+                       num_to_bytes(e_sector[i].Key[0], 6, c.d.asBytes); // KEY A\r
+                       clearCommandBuffer();\r
+                       SendCommand(&c);\r
 \r
 \r
-       if (transferToEml) {\r
-               uint8_t block[16];\r
-               for (uint16_t sectorNo = 0; sectorNo < SectorsCnt; sectorNo++) {\r
-                       if (validKey[0][sectorNo] || validKey[1][sectorNo]) {\r
-                               mfEmlGetMem(block, FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 1);\r
-                               for (uint16_t t = 0; t < 2; t++) {\r
-                                       if (validKey[t][sectorNo]) {\r
-                                               memcpy(block + t*10, foundKey[t][sectorNo], 6);\r
-                                       }\r
-                               }\r
-                               mfEmlSetMem(block, FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 1);\r
+                       UsbCommand resp;\r
+                       if ( !WaitForResponseTimeout(CMD_ACK,&resp,1500)) continue;\r
+                               \r
+                       uint8_t isOK  = resp.arg[0] & 0xff;\r
+                       if (!isOK) continue;\r
+\r
+                       uint8_t *data = resp.d.asBytes;\r
+                       key64 = bytes_to_num(data+10, 6);\r
+                       if (key64) {\r
+                               PrintAndLog("Data:%s", sprint_hex(data+10, 6));\r
+                               e_sector[i].foundKey[1] = 1;\r
+                               e_sector[i].Key[1] = key64;\r
                        }\r
                }\r
                        }\r
                }\r
-               PrintAndLog("Found keys have been transferred to the emulator memory");\r
        }\r
 \r
        }\r
 \r
+\r
+       //print them\r
+       printKeyTable( SectorsCnt, e_sector );\r
+       \r
+       if (transferToEml) {\r
+               uint8_t block[16] = {0x00};\r
+               for (uint8_t i = 0; i < SectorsCnt; ++i ) {\r
+                       mfEmlGetMem(block, FirstBlockOfSector(i) + NumBlocksPerSector(i) - 1, 1);\r
+                       if (e_sector[i].foundKey[0])\r
+                               num_to_bytes(e_sector[i].Key[0], 6, block);\r
+                       if (e_sector[i].foundKey[1])\r
+                               num_to_bytes(e_sector[i].Key[1], 6, block+10);\r
+                       mfEmlSetMem(block, FirstBlockOfSector(i) + NumBlocksPerSector(i) - 1, 1);\r
+               }\r
+               PrintAndLog("Found keys have been transferred to the emulator memory");\r
+       }\r
+       \r
        if (createDumpFile) {\r
                FILE *fkeys = fopen("dumpkeys.bin","wb");\r
                if (fkeys == NULL) { \r
                        PrintAndLog("Could not create file dumpkeys.bin");\r
                        free(keyBlock);\r
        if (createDumpFile) {\r
                FILE *fkeys = fopen("dumpkeys.bin","wb");\r
                if (fkeys == NULL) { \r
                        PrintAndLog("Could not create file dumpkeys.bin");\r
                        free(keyBlock);\r
+                       free(e_sector);\r
                        return 1;\r
                }\r
                        return 1;\r
                }\r
-               for (uint16_t t = 0; t < 2; t++) {\r
-                       fwrite(foundKey[t], 1, 6*SectorsCnt, fkeys);\r
+               PrintAndLog("Printing keys to binary file dumpkeys.bin...");\r
+       \r
+               for( i=0; i<SectorsCnt; i++) {\r
+                       num_to_bytes(e_sector[i].Key[0], 6, tempkey);\r
+                       fwrite ( tempkey, 1, 6, fkeys );\r
+               }\r
+               for(i=0; i<SectorsCnt; i++) {\r
+                       num_to_bytes(e_sector[i].Key[1], 6, tempkey);\r
+                       fwrite ( tempkey, 1, 6, fkeys );\r
                }\r
                fclose(fkeys);\r
                }\r
                fclose(fkeys);\r
-               PrintAndLog("Found keys have been dumped to file dumpkeys.bin. 0xffffffffffff has been inserted for unknown keys.");\r
+               PrintAndLog("Found keys have been dumped to file dumpkeys.bin. 0xffffffffffff has been inserted for unknown keys.");                    \r
        }\r
        }\r
-\r
+       \r
        free(keyBlock);\r
        free(keyBlock);\r
+       free(e_sector);\r
        PrintAndLog("");\r
        return 0;\r
 }\r
 \r
        PrintAndLog("");\r
        return 0;\r
 }\r
 \r
+void printKeyTable( uint8_t sectorscnt, sector *e_sector ){\r
+       PrintAndLog("|---|----------------|---|----------------|---|");\r
+       PrintAndLog("|sec|key A           |res|key B           |res|");\r
+       PrintAndLog("|---|----------------|---|----------------|---|");\r
+       for (uint8_t i = 0; i < sectorscnt; ++i) {\r
+               PrintAndLog("|%03d|  %012"llx"  | %d |  %012"llx"  | %d |", i,\r
+                       e_sector[i].Key[0], e_sector[i].foundKey[0], \r
+                       e_sector[i].Key[1], e_sector[i].foundKey[1]\r
+               );\r
+       }\r
+       PrintAndLog("|---|----------------|---|----------------|---|");\r
+}\r
+\r
 int CmdHF14AMf1kSim(const char *Cmd)\r
 {\r
        uint8_t uid[7] = {0, 0, 0, 0, 0, 0, 0};\r
 int CmdHF14AMf1kSim(const char *Cmd)\r
 {\r
        uint8_t uid[7] = {0, 0, 0, 0, 0, 0, 0};\r
@@ -1168,10 +1280,12 @@ int CmdHF14AMf1kSim(const char *Cmd)
                }\r
                pnr +=2;\r
        }\r
                }\r
                pnr +=2;\r
        }\r
+       \r
        if (param_getchar(Cmd, pnr) == 'n') {\r
                exitAfterNReads = param_get8(Cmd,pnr+1);\r
                pnr += 2;\r
        }\r
        if (param_getchar(Cmd, pnr) == 'n') {\r
                exitAfterNReads = param_get8(Cmd,pnr+1);\r
                pnr += 2;\r
        }\r
+       \r
        if (param_getchar(Cmd, pnr) == 'i' ) {\r
                //Using a flag to signal interactiveness, least significant bit\r
                flags |= FLAG_INTERACTIVE;\r
        if (param_getchar(Cmd, pnr) == 'i' ) {\r
                //Using a flag to signal interactiveness, least significant bit\r
                flags |= FLAG_INTERACTIVE;\r
@@ -1182,10 +1296,13 @@ int CmdHF14AMf1kSim(const char *Cmd)
                //Using a flag to signal interactiveness, least significant bit\r
                flags |= FLAG_NR_AR_ATTACK;\r
        }\r
                //Using a flag to signal interactiveness, least significant bit\r
                flags |= FLAG_NR_AR_ATTACK;\r
        }\r
+       \r
        PrintAndLog(" uid:%s, numreads:%d, flags:%d (0x%02x) ",\r
                                flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4):\r
                                                                                          flags & FLAG_7B_UID_IN_DATA   ? sprint_hex(uid,7): "N/A"\r
        PrintAndLog(" uid:%s, numreads:%d, flags:%d (0x%02x) ",\r
                                flags & FLAG_4B_UID_IN_DATA ? sprint_hex(uid,4):\r
                                                                                          flags & FLAG_7B_UID_IN_DATA   ? sprint_hex(uid,7): "N/A"\r
-                               , exitAfterNReads, flags,flags);\r
+                               , exitAfterNReads\r
+                               , flags\r
+                               , flags);\r
 \r
 \r
        UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}};\r
 \r
 \r
        UsbCommand c = {CMD_SIMULATE_MIFARE_CARD, {flags, exitAfterNReads,0}};\r
@@ -1200,40 +1317,39 @@ int CmdHF14AMf1kSim(const char *Cmd)
 \r
                UsbCommand resp;                \r
                PrintAndLog("Press pm3-button or send another cmd to abort simulation");\r
 \r
                UsbCommand resp;                \r
                PrintAndLog("Press pm3-button or send another cmd to abort simulation");\r
-               //while(! WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
-                       //We're waiting only 1.5 s at a time, otherwise we get the\r
-                       // annoying message about "Waiting for a response... "\r
-               //}\r
-               while(!ukbhit() ){\r
-                       if (!WaitForResponseTimeout(CMD_ACK,&resp,1500) ) continue;\r
+\r
+               while( !ukbhit() ){\r
+                       if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue;\r
 \r
                        if ( !(flags & FLAG_NR_AR_ATTACK) ) break;\r
 \r
                        if ( !(flags & FLAG_NR_AR_ATTACK) ) break;\r
+                       \r
                        if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;\r
 \r
                        if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;\r
 \r
-                                       memset(data, 0x00, sizeof(data));\r
-                                       memset(key, 0x00, sizeof(key));\r
-                                       int len = (resp.arg[1] > sizeof(data)) ? sizeof(data) : resp.arg[1];\r
-                                       \r
-                                       memcpy(data, resp.d.asBytes, len);\r
-                                       \r
-                                       uint64_t corr_uid = 0;\r
-                                       if ( memcmp(data, "\x00\x00\x00\x00", 4) == 0 ) {\r
-                                               corr_uid = (data[3] << 24) | (data[2] << 16) | (data[1] << 8) | data[0];\r
-                               tryMfk32(corr_uid, data, key);\r
-                       } else {\r
-                                               corr_uid |= (uint64_t)data[2] << 48; \r
-                                               corr_uid |= (uint64_t)data[1] << 40; \r
-                                               corr_uid |= (uint64_t)data[0] << 32;\r
-                                               corr_uid |= data[7] << 24;\r
-                                               corr_uid |= data[6] << 16;\r
-                                               corr_uid |= data[5] << 8;\r
-                                               corr_uid |= data[4];\r
-                               tryMfk64(corr_uid, data, key);\r
-                                       }\r
-                                       PrintAndLog("--");\r
+                               memset(data, 0x00, sizeof(data));\r
+                               memset(key, 0x00, sizeof(key));\r
+                               int len = (resp.arg[1] > sizeof(data)) ? sizeof(data) : resp.arg[1];\r
+                               \r
+                               memcpy(data, resp.d.asBytes, len);\r
+                               \r
+                               uint64_t corr_uid = 0;\r
+                               \r
+                               // this IF?  what was I thinking of?\r
+                               if ( memcmp(data, "\x00\x00\x00\x00", 4) == 0 ) {\r
+                                       corr_uid = ((uint64_t)(data[3] << 24)) | (data[2] << 16) | (data[1] << 8) | data[0];\r
+                                       tryMfk32(corr_uid, data, key);\r
+                               } else {\r
+                                       corr_uid |= (uint64_t)data[2] << 48; \r
+                                       corr_uid |= (uint64_t)data[1] << 40; \r
+                                       corr_uid |= (uint64_t)data[0] << 32;\r
+                                       corr_uid |= (uint64_t)data[7] << 24;\r
+                                       corr_uid |= (uint64_t)data[6] << 16;\r
+                                       corr_uid |= (uint64_t)data[5] << 8;\r
+                                       corr_uid |= (uint64_t)data[4];\r
+                                       tryMfk64(corr_uid, data, key);\r
                                }\r
                                }\r
-                       }\r
-       \r
+                       PrintAndLog("--");\r
+               }\r
+       }\r
        return 0;\r
 }\r
 \r
        return 0;\r
 }\r
 \r
@@ -1364,7 +1480,7 @@ int CmdHF14AMfELoad(const char *Cmd)
 \r
        len = param_getstr(Cmd,nameParamNo,filename);\r
        \r
 \r
        len = param_getstr(Cmd,nameParamNo,filename);\r
        \r
-       if (len > FILE_PATH_SIZE - 4) len = FILE_PATH_SIZE - 4;\r
+       if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5;\r
 \r
        fnameptr += len;\r
 \r
 \r
        fnameptr += len;\r
 \r
@@ -1461,7 +1577,7 @@ int CmdHF14AMfESave(const char *Cmd)
 \r
        len = param_getstr(Cmd,nameParamNo,filename);\r
        \r
 \r
        len = param_getstr(Cmd,nameParamNo,filename);\r
        \r
-       if (len > FILE_PATH_SIZE - 4) len = FILE_PATH_SIZE - 4;\r
+       if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5;\r
        \r
        // user supplied filename?\r
        if (len < 1) {\r
        \r
        // user supplied filename?\r
        if (len < 1) {\r
@@ -1738,7 +1854,7 @@ int CmdHF14AMfCLoad(const char *Cmd)
                return 0;\r
        } else {\r
                len = strlen(Cmd);\r
                return 0;\r
        } else {\r
                len = strlen(Cmd);\r
-               if (len > FILE_PATH_SIZE - 4) len = FILE_PATH_SIZE - 4;\r
+               if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5;\r
 \r
                memcpy(filename, Cmd, len);\r
                fnameptr += len;\r
 \r
                memcpy(filename, Cmd, len);\r
                fnameptr += len;\r
@@ -1779,6 +1895,7 @@ int CmdHF14AMfCLoad(const char *Cmd)
 \r
                        if (mfCSetBlock(blockNum, buf8, NULL, flags)) {\r
                                PrintAndLog("Can't set magic card block: %d", blockNum);\r
 \r
                        if (mfCSetBlock(blockNum, buf8, NULL, flags)) {\r
                                PrintAndLog("Can't set magic card block: %d", blockNum);\r
+                               fclose(f);\r
                                return 3;\r
                        }\r
                        blockNum++;\r
                                return 3;\r
                        }\r
                        blockNum++;\r
@@ -1908,7 +2025,7 @@ int CmdHF14AMfCSave(const char *Cmd) {
                return 0;\r
        } else {\r
                len = strlen(Cmd);\r
                return 0;\r
        } else {\r
                len = strlen(Cmd);\r
-               if (len > FILE_PATH_SIZE - 4) len = FILE_PATH_SIZE - 4;\r
+               if (len > FILE_PATH_SIZE - 5) len = FILE_PATH_SIZE - 5;\r
        \r
                // get filename based on UID\r
                if (len < 1) {\r
        \r
                // get filename based on UID\r
                if (len < 1) {\r
@@ -1966,6 +2083,7 @@ int CmdHF14AMfSniff(const char *Cmd){
        bool wantSaveToEmlFile = 0;\r
 \r
        //var \r
        bool wantSaveToEmlFile = 0;\r
 \r
        //var \r
+       int tmpchar;\r
        int res = 0;\r
        int len = 0;\r
        int blockLen = 0;\r
        int res = 0;\r
        int len = 0;\r
        int blockLen = 0;\r
@@ -2016,7 +2134,8 @@ int CmdHF14AMfSniff(const char *Cmd){
                printf(".");\r
                fflush(stdout);\r
                if (ukbhit()) {\r
                printf(".");\r
                fflush(stdout);\r
                if (ukbhit()) {\r
-                       getchar();\r
+                       tmpchar = getchar();\r
+                       (void)tmpchar;\r
                        printf("\naborted via keyboard!\n");\r
                        break;\r
                }\r
                        printf("\naborted via keyboard!\n");\r
                        break;\r
                }\r
@@ -2027,7 +2146,10 @@ int CmdHF14AMfSniff(const char *Cmd){
                        uint16_t traceLen = resp.arg[1];\r
                        len = resp.arg[2];\r
 \r
                        uint16_t traceLen = resp.arg[1];\r
                        len = resp.arg[2];\r
 \r
-                       if (res == 0) return 0;                                         // we are done\r
+                       if (res == 0) {\r
+                               free(buf);\r
+                               return 0;                                               // we are done\r
+                       }\r
 \r
                        if (res == 1) {                                                         // there is (more) data to be transferred\r
                                if (pckNum == 0) {                                              // first packet, (re)allocate necessary buffer\r
 \r
                        if (res == 1) {                                                         // there is (more) data to be transferred\r
                                if (pckNum == 0) {                                              // first packet, (re)allocate necessary buffer\r
@@ -2049,6 +2171,11 @@ int CmdHF14AMfSniff(const char *Cmd){
                                        bufsize = traceLen;\r
                                        memset(buf, 0x00, traceLen);\r
                                }\r
                                        bufsize = traceLen;\r
                                        memset(buf, 0x00, traceLen);\r
                                }\r
+                               if (bufPtr == NULL) {\r
+                                       PrintAndLog("Cannot allocate memory for trace");\r
+                                       free(buf);\r
+                                       return 2;\r
+                               }\r
                                memcpy(bufPtr, resp.d.asBytes, len);\r
                                bufPtr += len;\r
                                pckNum++;\r
                                memcpy(bufPtr, resp.d.asBytes, len);\r
                                bufPtr += len;\r
                                pckNum++;\r
@@ -2125,48 +2252,46 @@ int CmdHf14MfDecryptBytes(const char *Cmd){
        return tryDecryptWord( nt, ar_enc, at_enc, data, len);\r
 }\r
 \r
        return tryDecryptWord( nt, ar_enc, at_enc, data, len);\r
 }\r
 \r
-static command_t CommandTable[] =\r
-{\r
-  {"help",             CmdHelp,                                1, "This help"},\r
-  {"dbg",              CmdHF14AMfDbg,                  0, "Set default debug mode"},\r
-  {"rdbl",             CmdHF14AMfRdBl,                 0, "Read MIFARE classic block"},\r
-  {"rdsc",             CmdHF14AMfRdSc,                 0, "Read MIFARE classic sector"},\r
-  {"dump",             CmdHF14AMfDump,                 0, "Dump MIFARE classic tag to binary file"},\r
-  {"restore",  CmdHF14AMfRestore,              0, "Restore MIFARE classic binary file to BLANK tag"},\r
-  {"wrbl",             CmdHF14AMfWrBl,                 0, "Write MIFARE classic block"},\r
-  {"chk",              CmdHF14AMfChk,                  0, "Test block keys"},\r
-  {"mifare",   CmdHF14AMifare,                 0, "Read parity error messages."},\r
-  {"nested",   CmdHF14AMfNested,               0, "Test nested authentication"},\r
+static command_t CommandTable[] = {\r
+       {"help",                CmdHelp,                                1, "This help"},\r
+       {"dbg",                 CmdHF14AMfDbg,                  0, "Set default debug mode"},\r
+       {"rdbl",                CmdHF14AMfRdBl,                 0, "Read MIFARE classic block"},\r
+       {"rdsc",                CmdHF14AMfRdSc,                 0, "Read MIFARE classic sector"},\r
+       {"dump",                CmdHF14AMfDump,                 0, "Dump MIFARE classic tag to binary file"},\r
+       {"restore",             CmdHF14AMfRestore,              0, "Restore MIFARE classic binary file to BLANK tag"},\r
+       {"wrbl",                CmdHF14AMfWrBl,                 0, "Write MIFARE classic block"},\r
+       {"chk",                 CmdHF14AMfChk,                  0, "Test block keys"},\r
+       {"mifare",              CmdHF14AMifare,                 0, "Read parity error messages."},\r
+       {"nested",              CmdHF14AMfNested,               0, "Test nested authentication"},\r
        {"hardnested",  CmdHF14AMfNestedHard,   0, "Nested attack for hardened Mifare cards"},\r
        {"hardnested",  CmdHF14AMfNestedHard,   0, "Nested attack for hardened Mifare cards"},\r
-  {"sniff",            CmdHF14AMfSniff,                0, "Sniff card-reader communication"},\r
-  {"sim",              CmdHF14AMf1kSim,                0, "Simulate MIFARE card"},\r
-  {"eclr",             CmdHF14AMfEClear,               0, "Clear simulator memory block"},\r
-  {"eget",             CmdHF14AMfEGet,                 0, "Get simulator memory block"},\r
-  {"eset",             CmdHF14AMfESet,                 0, "Set simulator memory block"},\r
-  {"eload",            CmdHF14AMfELoad,                0, "Load from file emul dump"},\r
-  {"esave",            CmdHF14AMfESave,                0, "Save to file emul dump"},\r
-  {"ecfill",   CmdHF14AMfECFill,               0, "Fill simulator memory with help of keys from simulator"},\r
-  {"ekeyprn",  CmdHF14AMfEKeyPrn,              0, "Print keys from simulator memory"},\r
-  {"csetuid",  CmdHF14AMfCSetUID,              0, "Set UID for magic Chinese card"},\r
-  {"csetblk",  CmdHF14AMfCSetBlk,              0, "Write block - Magic Chinese card"},\r
-  {"cgetblk",  CmdHF14AMfCGetBlk,              0, "Read block - Magic Chinese card"},\r
-  {"cgetsc",   CmdHF14AMfCGetSc,               0, "Read sector - Magic Chinese card"},\r
-  {"cload",            CmdHF14AMfCLoad,                0, "Load dump into magic Chinese card"},\r
-  {"csave",            CmdHF14AMfCSave,                0, "Save dump from magic Chinese card into file or emulator"},\r
-  {"decrypt",   CmdHf14MfDecryptBytes,  1, "[nt] [ar_enc] [at_enc] [data] - to decrypt snoop or trace"},\r
-  {NULL, NULL, 0, NULL}\r
+       {"sniff",               CmdHF14AMfSniff,                0, "Sniff card-reader communication"},\r
+       {"sim",                 CmdHF14AMf1kSim,                0, "Simulate MIFARE card"},\r
+       {"eclr",                CmdHF14AMfEClear,               0, "Clear simulator memory block"},\r
+       {"eget",                CmdHF14AMfEGet,                 0, "Get simulator memory block"},\r
+       {"eset",                CmdHF14AMfESet,                 0, "Set simulator memory block"},\r
+       {"eload",               CmdHF14AMfELoad,                0, "Load from file emul dump"},\r
+       {"esave",               CmdHF14AMfESave,                0, "Save to file emul dump"},\r
+       {"ecfill",              CmdHF14AMfECFill,               0, "Fill simulator memory with help of keys from simulator"},\r
+       {"ekeyprn",             CmdHF14AMfEKeyPrn,              0, "Print keys from simulator memory"},\r
+       {"csetuid",             CmdHF14AMfCSetUID,              0, "Set UID for magic Chinese card"},\r
+       {"csetblk",             CmdHF14AMfCSetBlk,              0, "Write block - Magic Chinese card"},\r
+       {"cgetblk",             CmdHF14AMfCGetBlk,              0, "Read block - Magic Chinese card"},\r
+       {"cgetsc",              CmdHF14AMfCGetSc,               0, "Read sector - Magic Chinese card"},\r
+       {"cload",               CmdHF14AMfCLoad,                0, "Load dump into magic Chinese card"},\r
+       {"csave",               CmdHF14AMfCSave,                0, "Save dump from magic Chinese card into file or emulator"},\r
+       {"decrypt",             CmdHf14MfDecryptBytes,  1, "[nt] [ar_enc] [at_enc] [data] - to decrypt snoop or trace"},\r
+       {NULL, NULL, 0, NULL}\r
 };\r
 \r
 };\r
 \r
-int CmdHFMF(const char *Cmd)\r
-{\r
+int CmdHFMF(const char *Cmd) {\r
        // flush\r
        // flush\r
-       WaitForResponseTimeout(CMD_ACK,NULL,100);\r
+       clearCommandBuffer();\r
+       //WaitForResponseTimeout(CMD_ACK,NULL,100);\r
        CmdsParse(CommandTable, Cmd);\r
        return 0;\r
 }\r
 \r
        CmdsParse(CommandTable, Cmd);\r
        return 0;\r
 }\r
 \r
-int CmdHelp(const char *Cmd)\r
-{\r
+int CmdHelp(const char *Cmd) {\r
        CmdsHelp(CommandTable);\r
        return 0;\r
 }\r
        CmdsHelp(CommandTable);\r
        return 0;\r
 }\r
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