]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhfmf.c
Create session key
[proxmark3-svn] / client / cmdhfmf.c
index eb3b4bf1e1257d21ce3c1f4c48b09295aaba5561..1d2de683fed5cd572f071b3791f7787f5459f489 100644 (file)
@@ -7,7 +7,7 @@
 //-----------------------------------------------------------------------------\r
 // High frequency MIFARE commands\r
 //-----------------------------------------------------------------------------\r
-\r
+#include "../include/mifare.h"\r
 #include "cmdhfmf.h"\r
 \r
 static int CmdHelp(const char *Cmd);\r
@@ -140,6 +140,7 @@ int CmdHF14AMfWrBl(const char *Cmd)
        return 0;\r
 }\r
 \r
+/*  dublett finns i CMDHFMFU.C \r
 int CmdHF14AMfUWrBl(const char *Cmd)\r
 {\r
        uint8_t blockNo = 0;\r
@@ -249,8 +250,7 @@ int CmdHF14AMfUWrBl(const char *Cmd)
        }\r
        return 0;\r
 }\r
-\r
-\r
+*/\r
 int CmdHF14AMfRdBl(const char *Cmd)\r
 {\r
        uint8_t blockNo = 0;\r
@@ -299,6 +299,7 @@ int CmdHF14AMfRdBl(const char *Cmd)
   return 0;\r
 }\r
 \r
+/* dublett finns i CMDHFMFU.C \r
 int CmdHF14AMfURdBl(const char *Cmd)\r
 {\r
        uint8_t blockNo = 0;\r
@@ -330,8 +331,9 @@ int CmdHF14AMfURdBl(const char *Cmd)
 \r
        return 0;\r
 }\r
+*/\r
 \r
-\r
+/* dublett finns i CMDHFMFU.C \r
 int CmdHF14AMfURdCard(const char *Cmd)\r
 {\r
     int i;\r
@@ -422,7 +424,7 @@ int CmdHF14AMfURdCard(const char *Cmd)
         }\r
   return 0;\r
 }\r
-\r
+*/\r
 \r
 int CmdHF14AMfRdSc(const char *Cmd)\r
 {\r
@@ -509,6 +511,7 @@ int CmdHF14AMfDump(const char *Cmd)
        uint8_t keyA[40][6];\r
        uint8_t keyB[40][6];\r
        uint8_t rights[40][4];\r
+       uint8_t carddata[256][16];\r
        uint8_t numSectors = 16;\r
        \r
        FILE *fin;\r
@@ -516,7 +519,14 @@ int CmdHF14AMfDump(const char *Cmd)
        \r
        UsbCommand resp;\r
 \r
+       int size = GetCardSize();               \r
        char cmdp = param_getchar(Cmd, 0);\r
+\r
+       if  ( size > -1) \r
+               cmdp = (char)(48+size);\r
+\r
+       PrintAndLog("Got %d",cmdp);\r
+               \r
        switch (cmdp) {\r
                case '0' : numSectors = 5; break;\r
                case '1' : \r
@@ -536,33 +546,30 @@ int CmdHF14AMfDump(const char *Cmd)
        }\r
        \r
        if ((fin = fopen("dumpkeys.bin","rb")) == NULL) {\r
-               PrintAndLog("Could not find file dumpkeys.bin");\r
+               PrintAndLog("Could not find file dumpkeys.bin");                \r
                return 1;\r
        }\r
        \r
-       if ((fout = fopen("dumpdata.bin","wb")) == NULL) { \r
-               PrintAndLog("Could not create file name dumpdata.bin");\r
-               return 1;\r
-       }\r
-       \r
-       // Read key file\r
-\r
+       // Read keys A from file\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
                if (fread( keyA[sectorNo], 1, 6, fin ) == 0) {\r
                        PrintAndLog("File reading error.");\r
+                       fclose(fin);\r
                        return 2;\r
                }\r
        }\r
        \r
+       // Read keys B from file\r
        for (sectorNo=0; sectorNo<numSectors; sectorNo++) {\r
                if (fread( keyB[sectorNo], 1, 6, fin ) == 0) {\r
                        PrintAndLog("File reading error.");\r
+                       fclose(fin);\r
                        return 2;\r
                }\r
        }\r
        \r
-       // Read access rights to sectors\r
-\r
+       fclose(fin);\r
+       \r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|------ Reading sector access bits...-----|");\r
        PrintAndLog("|-----------------------------------------|");\r
@@ -576,28 +583,31 @@ int CmdHF14AMfDump(const char *Cmd)
                        uint8_t isOK  = resp.arg[0] & 0xff;\r
                        uint8_t *data  = resp.d.asBytes;\r
                        if (isOK){\r
-                               rights[sectorNo][0] = ((data[7] & 0x10)>>4) | ((data[8] & 0x1)<<1) | ((data[8] & 0x10)>>2);\r
-                               rights[sectorNo][1] = ((data[7] & 0x20)>>5) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>3);\r
-                               rights[sectorNo][2] = ((data[7] & 0x40)>>6) | ((data[8] & 0x4)>>1) | ((data[8] & 0x40)>>4);\r
-                               rights[sectorNo][3] = ((data[7] & 0x80)>>7) | ((data[8] & 0x8)>>2) | ((data[8] & 0x80)>>5);\r
+                               rights[sectorNo][0] = ((data[7] & 0x10)>>2) | ((data[8] & 0x1)<<1) | ((data[8] & 0x10)>>4); // C1C2C3 for data area 0\r
+                               rights[sectorNo][1] = ((data[7] & 0x20)>>3) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>5); // C1C2C3 for data area 1\r
+                               rights[sectorNo][2] = ((data[7] & 0x40)>>4) | ((data[8] & 0x4)>>1) | ((data[8] & 0x40)>>6); // C1C2C3 for data area 2\r
+                               rights[sectorNo][3] = ((data[7] & 0x80)>>5) | ((data[8] & 0x8)>>2) | ((data[8] & 0x80)>>7); // C1C2C3 for sector trailer\r
                        } else {\r
-                               PrintAndLog("Could not get access rights for sector %2d.", sectorNo);\r
+                               PrintAndLog("Could not get access rights for sector %2d. Trying with defaults...", sectorNo);\r
+                               rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00;\r
+                               rights[sectorNo][3] = 0x01;\r
                        }\r
                } else {\r
-                       PrintAndLog("Command execute timeout");\r
+                       PrintAndLog("Command execute timeout when trying to read access rights for sector %2d. Trying with defaults...", sectorNo);\r
+                       rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00;\r
+                       rights[sectorNo][3] = 0x01;\r
                }\r
        }\r
        \r
-       // Read blocks and print to file\r
-       \r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|----- Dumping all blocks to file... -----|");\r
        PrintAndLog("|-----------------------------------------|");\r
        \r
-  \r
-       for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
-               for (blockNo = 0; blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
+       bool isOK = true;\r
+       for (sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {\r
+               for (blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        bool received = false;\r
+                       \r
                        if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. At least the Access Conditions can always be read with key A. \r
                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
                                memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
@@ -605,12 +615,13 @@ int CmdHF14AMfDump(const char *Cmd)
                                received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
                        } else {                                                                                                // data block. Check if it can be read with key A or key B\r
                                uint8_t data_area = sectorNo<32?blockNo:blockNo/5;\r
-                               if ((rights[sectorNo][data_area] == 3) || (rights[sectorNo][data_area] == 5)) {                 // only key B would work\r
+                               if ((rights[sectorNo][data_area] == 0x03) || (rights[sectorNo][data_area] == 0x05)) {   // only key B would work\r
                                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 1, 0}};\r
                                        memcpy(c.d.asBytes, keyB[sectorNo], 6);\r
                                        SendCommand(&c);\r
                                        received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
-                               } else if (rights[sectorNo][data_area] == 7) {                                                                                  // no key would work\r
+                               } else if (rights[sectorNo][data_area] == 0x07) {                                                                               // no key would work\r
+                                       isOK = false;\r
                                                PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo);\r
                                } else {                                                                                                                                                                // key A would work\r
                                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
@@ -621,7 +632,7 @@ int CmdHF14AMfDump(const char *Cmd)
                        }\r
 \r
                        if (received) {\r
-                               uint8_t isOK  = resp.arg[0] & 0xff;\r
+                               isOK  = resp.arg[0] & 0xff;\r
                                uint8_t *data  = resp.d.asBytes;\r
                                if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. Fill in the keys.\r
                                        data[0]  = (keyA[sectorNo][0]);\r
@@ -638,21 +649,32 @@ int CmdHF14AMfDump(const char *Cmd)
                                        data[15] = (keyB[sectorNo][5]);\r
                                }\r
                                if (isOK) {\r
-                                       fwrite ( data, 1, 16, fout );\r
-                    PrintAndLog("Dumped block %2d of sector %2d into 'dumpdata.bin'");\r
+                                       memcpy(carddata[FirstBlockOfSector(sectorNo) + blockNo], data, 16);\r
+                    PrintAndLog("Successfully read block %2d of sector %2d.", blockNo, sectorNo);\r
                                } else {\r
                                        PrintAndLog("Could not read block %2d of sector %2d", blockNo, sectorNo);\r
+                                       break;\r
                                }\r
                        }\r
                        else {\r
-                               PrintAndLog("Command execute timeout");\r
+                               isOK = false;\r
+                               PrintAndLog("Command execute timeout when trying to read block %2d of sector %2d.", blockNo, sectorNo);\r
+                               break;\r
                        }\r
                }\r
+       }\r
 \r
+       if (isOK) {\r
+               if ((fout = fopen("dumpdata.bin","wb")) == NULL) { \r
+                       PrintAndLog("Could not create file name dumpdata.bin");\r
+                       return 1;\r
+               }\r
+               uint16_t numblocks = FirstBlockOfSector(numSectors - 1) + NumBlocksPerSector(numSectors - 1);\r
+               fwrite(carddata, 1, 16*numblocks, fout);\r
+               fclose(fout);\r
+               PrintAndLog("Dumped %d blocks (%d bytes) to file dumpdata.bin", numblocks, 16*numblocks);\r
        }\r
        \r
-       fclose(fin);\r
-       fclose(fout);\r
        return 0;\r
 }\r
 \r
@@ -712,7 +734,7 @@ int CmdHF14AMfRestore(const char *Cmd)
                        return 2;\r
                }\r
        }\r
-       \r
+\r
        PrintAndLog("Restoring dumpdata.bin to card");\r
 \r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
@@ -792,20 +814,24 @@ int CmdHF14AMfNested(const char *Cmd)
                PrintAndLog("d - write keys to binary file");\r
                PrintAndLog(" ");\r
                PrintAndLog("      sample1: hf mf nested 1 0 A FFFFFFFFFFFF ");\r
-               PrintAndLog("      sample1: hf mf nested 1 0 A FFFFFFFFFFFF t ");\r
-               PrintAndLog("      sample1: hf mf nested 1 0 A FFFFFFFFFFFF d ");\r
-               PrintAndLog("      sample2: hf mf nested o 0 A FFFFFFFFFFFF 4 A");\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
                return 0;\r
        }       \r
        \r
        cmdp = param_getchar(Cmd, 0);\r
        blockNo = param_get8(Cmd, 1);\r
        ctmp = param_getchar(Cmd, 2);\r
+       \r
        if (ctmp != 'a' && ctmp != 'A' && ctmp != 'b' && ctmp != 'B') {\r
                PrintAndLog("Key type must be A or B");\r
                return 1;\r
        }\r
-       if (ctmp != 'A' && ctmp != 'a') keyType = 1;\r
+       \r
+       if (ctmp != 'A' && ctmp != 'a') \r
+               keyType = 1;\r
+               \r
        if (param_gethex(Cmd, 3, key, 12)) {\r
                PrintAndLog("Key must include 12 HEX symbols");\r
                return 1;\r
@@ -819,8 +845,12 @@ int CmdHF14AMfNested(const char *Cmd)
                        PrintAndLog("Target key type must be A or B");\r
                        return 1;\r
                }\r
-               if (ctmp != 'A' && ctmp != 'a') trgKeyType = 1;\r
+               if (ctmp != 'A' && ctmp != 'a') \r
+                       trgKeyType = 1;\r
        } else {\r
+               \r
+               \r
+       \r
                switch (cmdp) {\r
                        case '0': SectorsCnt = 05; break;\r
                        case '1': SectorsCnt = 16; break;\r
@@ -996,21 +1026,20 @@ int CmdHF14AMfNested(const char *Cmd)
 }\r
 \r
 \r
-static uint32_t get_trailer_block (uint32_t uiBlock)\r
-{\r
-  // Test if we are in the small or big sectors\r
-  uint32_t trailer_block = 0;\r
-  if (uiBlock < 128) {\r
-    trailer_block = uiBlock + (3 - (uiBlock % 4));\r
-  } else {\r
-    trailer_block = uiBlock + (15 - (uiBlock % 16));\r
-  }\r
-  return trailer_block;\r
-}\r
-\r
-\r
 int CmdHF14AMfChk(const char *Cmd)\r
 {\r
+       if (strlen(Cmd)<3) {\r
+               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t|d] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
+               PrintAndLog("          * - all sectors");\r
+               PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other> - 1K");\r
+               PrintAndLog("d - write keys to binary file\n");\r
+               PrintAndLog("t - write keys to emulator memory");\r
+               PrintAndLog("      sample: hf mf chk 0 A 1234567890ab keys.dic");\r
+               PrintAndLog("              hf mf chk *1 ? t");\r
+               PrintAndLog("              hf mf chk *1 ? d");\r
+               return 0;\r
+       }\r
+       \r
        FILE * f;\r
        char filename[256]={0};\r
        char buf[13];\r
@@ -1054,17 +1083,6 @@ int CmdHF14AMfChk(const char *Cmd)
                num_to_bytes(defaultKeys[defaultKeyCounter], 6, (uint8_t*)(keyBlock + defaultKeyCounter * 6));\r
        }\r
        \r
-       if (strlen(Cmd)<3) {\r
-               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
-               PrintAndLog("          * - all sectors");\r
-               PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other> - 1K");\r
-//             PrintAndLog("d - write keys to binary file\n");\r
-               \r
-               PrintAndLog("      sample: hf mf chk 0 A 1234567890ab keys.dic");\r
-               PrintAndLog("              hf mf chk *1 ? t");\r
-               return 0;\r
-       }       \r
-       \r
        if (param_getchar(Cmd, 0)=='*') {\r
                blockNo = 3;\r
                switch(param_getchar(Cmd+1, 0)) {\r
@@ -1152,11 +1170,12 @@ int CmdHF14AMfChk(const char *Cmd)
                                        keycnt++;\r
                                        memset(buf, 0, sizeof(buf));\r
                                }\r
+                               fclose(f);\r
                        } else {\r
                                PrintAndLog("File: %s: not found or locked.", filename);\r
                                free(keyBlock);\r
                                return 1;\r
-                       fclose(f);\r
+                       \r
                        }\r
                }\r
        }\r
@@ -1169,10 +1188,22 @@ int CmdHF14AMfChk(const char *Cmd)
                        (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
+       }\r
+       \r
        for ( int t = !keyType; t < 2; keyType==2?(t++):(t=2) ) {\r
                int b=blockNo;\r
                for (int i = 0; i < SectorsCnt; ++i) {\r
-                       PrintAndLog("--SectorsCnt:%2d, block no:%3d, key type:%C, key count:%2d ", i, b, t?'B':'A', keycnt);\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
@@ -1180,13 +1211,9 @@ int CmdHF14AMfChk(const char *Cmd)
                                if (res != 1) {\r
                                        if (!res) {\r
                                                PrintAndLog("Found valid key:[%012"llx"]",key64);\r
-                                               if (transferToEml) {\r
-                                                       uint8_t block[16];\r
-                                                       mfEmlGetMem(block, get_trailer_block(b), 1);\r
-                                                       num_to_bytes(key64, 6, block + t*10);\r
-                                                       mfEmlSetMem(block, get_trailer_block(b), 1);\r
-                                               }\r
-                                       }\r
+                                               num_to_bytes(key64, 6, foundKey[t][i]);\r
+                                               validKey[t][i] = true;\r
+                                       } \r
                                } else {\r
                                        PrintAndLog("Command execute timeout");\r
                                }\r
@@ -1194,42 +1221,43 @@ int CmdHF14AMfChk(const char *Cmd)
                        b<127?(b+=4):(b+=16);   \r
                }\r
        }\r
-       \r
-       free(keyBlock);\r
 \r
-/*\r
-       // Create dump file\r
-       if (createDumpFile) {\r
-               if ((fkeys = fopen("dumpkeys.bin","wb")) == NULL) { \r
-                       PrintAndLog("Could not create file dumpkeys.bin");\r
-                       free(e_sector);\r
-                       return 1;\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
-               PrintAndLog("Printing keys to binary file dumpkeys.bin...");\r
-               for(i=0; i<16; i++) {\r
-                       if (e_sector[i].foundKey[0]){\r
-                               num_to_bytes(e_sector[i].Key[0], 6, tempkey);\r
-                               fwrite ( tempkey, 1, 6, fkeys );\r
                        }\r
-                       else{\r
-                               fwrite ( &standart, 1, 6, fkeys );\r
+                               mfEmlSetMem(block, FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 1);\r
                        }\r
                }\r
-               for(i=0; i<16; i++) {\r
-                       if (e_sector[i].foundKey[1]){\r
-                               num_to_bytes(e_sector[i].Key[1], 6, tempkey);\r
-                               fwrite ( tempkey, 1, 6, fkeys );\r
+               PrintAndLog("Found keys have been transferred to the emulator memory");\r
                        }\r
-                       else{\r
-                               fwrite ( &standart, 1, 6, fkeys );\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
+                       return 1;\r
                        }\r
+               for (uint16_t t = 0; t < 2; t++) {\r
+                       fwrite(foundKey[t], 1, 6*SectorsCnt, fkeys);\r
                }\r
                fclose(fkeys);\r
+               PrintAndLog("Found keys have been dumped to file dumpkeys.bin. 0xffffffffffff has been inserted for unknown keys.");\r
        }\r
-*/\r
+\r
+       free(keyBlock);\r
+\r
   return 0;\r
 }\r
 \r
+\r
 int CmdHF14AMf1kSim(const char *Cmd)\r
 {\r
        uint8_t uid[7] = {0, 0, 0, 0, 0, 0, 0};\r
@@ -1428,6 +1456,7 @@ int CmdHF14AMfELoad(const char *Cmd)
                                break;\r
                        }\r
                        PrintAndLog("File reading error.");\r
+                       fclose(f);\r
                        return 2;\r
                }\r
                if (strlen(buf) < 32){\r
@@ -1452,6 +1481,7 @@ int CmdHF14AMfELoad(const char *Cmd)
        \r
        if ((blockNum != 16*4) && (blockNum != 32*4 + 8*16)) {\r
                PrintAndLog("File content error. There must be 64 or 256 blocks.");\r
+               fclose(f);\r
                return 4;\r
        }\r
        PrintAndLog("Loaded %d blocks from file: %s", blockNum, filename);\r
@@ -1584,8 +1614,8 @@ int CmdHF14AMfEKeyPrn(const char *Cmd)
 int CmdHF14AMfCSetUID(const char *Cmd)\r
 {\r
        uint8_t wipeCard = 0;\r
-       uint8_t uid[8];\r
-       uint8_t oldUid[8];\r
+       uint8_t uid[8] = {0x00};\r
+       uint8_t oldUid[8] = {0x00};\r
        int res;\r
 \r
        if (strlen(Cmd) < 1 || param_getchar(Cmd, 0) == 'h') {\r
@@ -2011,30 +2041,128 @@ int CmdHF14AMfSniff(const char *Cmd){
                                                        FillFileNameByUID(logHexFileName, uid + (7 - uid_len), ".log", uid_len);\r
                                                        AddLogCurrentDT(logHexFileName);\r
                                                }                                               \r
-                                               if (wantDecrypt) mfTraceInit(uid, atqa, sak, wantSaveToEmlFile);\r
+                                               if (wantDecrypt) \r
+                                                       mfTraceInit(uid, atqa, sak, wantSaveToEmlFile);\r
                                        } else {\r
                                                PrintAndLog("%s(%d):%s", isTag ? "TAG":"RDR", num, sprint_hex(bufPtr, len));\r
-                                               if (wantLogToFile) AddLogHex(logHexFileName, isTag ? "TAG: ":"RDR: ", bufPtr, len);\r
-                                               if (wantDecrypt) mfTraceDecode(bufPtr, len, parity, wantSaveToEmlFile);\r
+                                               if (wantLogToFile) \r
+                                                       AddLogHex(logHexFileName, isTag ? "TAG: ":"RDR: ", bufPtr, len);\r
+                                               if (wantDecrypt) \r
+                                                       mfTraceDecode(bufPtr, len, parity, wantSaveToEmlFile);\r
                                        }\r
                                        bufPtr += len;\r
                                        num++;\r
                                }\r
                        }\r
-               } // resp not NILL\r
+               } // resp not NULL\r
        } // while (true)\r
        \r
        return 0;\r
 }\r
 \r
+// Tries to identify cardsize.\r
+// Returns <num>  where num is:\r
+// -1  unidentified\r
+//  0 - MINI (320bytes)\r
+//  1 - 1K\r
+//  2 - 2K\r
+//  4 - 4K\r
+int GetCardSize()\r
+{\r
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};\r
+       SendCommand(&c);\r
+\r
+       UsbCommand resp;\r
+       WaitForResponse(CMD_ACK,&resp);\r
+\r
+       if(resp.arg[0] == 0) {\r
+               PrintAndLog("iso14443a card select failed");\r
+               return -1;\r
+       }\r
+       \r
+       iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes;\r
+\r
+       PrintAndLog("Trying to detect card size.");\r
+       \r
+       uint16_t atqa = 0;\r
+       uint8_t sak = 0;\r
+       atqa = (card->atqa[1] & 0xff) << 8;\r
+    atqa += card->atqa[0] & 0xff;\r
+       sak = card->sak;\r
+       \r
+       // https://code.google.com/p/libnfc/source/browse/libnfc/target-subr.c\r
+       \r
+       PrintAndLog("found ATAQ: %04X SAK: %02X", atqa, sak);\r
+       \r
+       \r
+       // NXP MIFARE Mini 0.3k\r
+       if ( ( (atqa & 0xff0f) == 0x0004) && (sak == 0x09) ) return 0;\r
+       \r
+       // MIFARE Classic 1K\r
+       if ( ((atqa & 0xff0f) == 0x0004) && (sak == 0x08) ) return 1;\r
+       \r
+       // MIFARE Classik 4K\r
+       if ( ((atqa & 0xff0f) == 0x0002) && (sak == 0x18) ) return 4;\r
+       \r
+       // SmartMX with MIFARE 1K emulation \r
+       if ( ((atqa & 0xf0ff) == 0x0004) ) return 1;\r
+\r
+       // SmartMX with MIFARE 4K emulation \r
+       if ( ((atqa & 0xf0ff) == 0x0002) ) return 4;    \r
+       \r
+       // Infineon MIFARE CLASSIC 1K\r
+       if ( ((atqa & 0xffff) == 0x0004) && (sak == 0x88) ) return 1;\r
+       \r
+       // MFC 4K emulated by Nokia 6212 Classic\r
+       if ( ((atqa & 0xffff) == 0x0002) && (sak == 0x38) ) return 4;\r
+\r
+       // MFC 4K emulated by Nokia 6131 NFC\r
+       if ( ((atqa & 0xffff) == 0x0008) && (sak == 0x38) ) return 4;\r
+\r
+       \r
+       PrintAndLog("BEFOOO  1K %02X",  (atqa & 0xff0f));\r
+       \r
+       // MIFARE Plus (4 Byte UID or 4 Byte RID)\r
+       // MIFARE Plus (7 Byte UID)\r
+       if (\r
+                       ((atqa & 0xffff) == 0x0002) |\r
+                       ((atqa & 0xffff) == 0x0004) |\r
+                       ((atqa & 0xffff) == 0x0042) |   \r
+                       ((atqa & 0xffff) == 0x0044) \r
+               )\r
+       {\r
+               switch(sak){\r
+                       case 0x08:\r
+                       case 0x10: {\r
+                       //case 0x20:\r
+                               PrintAndLog("2");\r
+                               return 2;\r
+                               break;\r
+                               }\r
+                       case 0x11:\r
+                       case 0x18:{\r
+                       //case 0x20:\r
+                               PrintAndLog("4");\r
+                               return 4;\r
+                               break;\r
+                               }\r
+               }\r
+       }\r
+       \r
+       return -1;\r
+}\r
+\r
+\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
-  {"urdbl",     CmdHF14AMfURdBl,        0, "Read MIFARE Ultralight block"},\r
-  {"urdcard",   CmdHF14AMfURdCard,      0,"Read MIFARE Ultralight Card"},\r
-  {"uwrbl",            CmdHF14AMfUWrBl,                0,"Write MIFARE Ultralight block"},\r
+  //{"urdbl",              CmdHF14AMfURdBl,                 0, "Read MIFARE Ultralight block"},\r
+  //{"urdcard",           CmdHF14AMfURdCard,               0,"Read MIFARE Ultralight Card"},\r
+  //{"uwrbl",          CmdHF14AMfUWrBl,                0,"Write MIFARE Ultralight 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
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