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FIX: fixed the "lf pcf7931 write" input validation. *untested*
[proxmark3-svn] / armsrc / mifarecmd.c
diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index 344b0f3ed060069ab2520e8cb50cc1429b4ea591..0b75ebc3fb9543229463102b28bef0f4a81ad00f 100644 (file)
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -2,6 +2,9 @@
 // Merlok - June 2011, 2012\r
 // Gerhard de Koning Gans - May 2008\r
 // Hagen Fritsch - June 2010\r
 // Merlok - June 2011, 2012\r
 // Gerhard de Koning Gans - May 2008\r
 // Hagen Fritsch - June 2010\r
+// Midnitesnake - Dec 2013\r
+// Andy Davies  - Apr 2014\r
+// Iceman - May 2014\r
 //\r
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,\r
 // at your option, any later version. See the LICENSE.txt file for the text of\r
 //\r
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,\r
 // at your option, any later version. See the LICENSE.txt file for the text of\r
@@ -12,6 +15,8 @@
 \r
 #include "mifarecmd.h"\r
 #include "apps.h"\r
 \r
 #include "mifarecmd.h"\r
 #include "apps.h"\r
+#include "util.h"\r
+#include "crc.h"\r
 \r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Read a MIFARE tag. \r
 \r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Read a MIFARE tag. \r
@@ -34,12 +39,10 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-//     iso14a_set_tracing(false);\r
-\r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
+       clear_trace();\r
+\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
@@ -78,65 +81,101 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);\r
        LED_B_OFF();\r
 \r
        cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);\r
        LED_B_OFF();\r
 \r
-       // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
+}\r
+\r
+void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){\r
+\r
+       bool turnOffField = (arg0 == 1);\r
+\r
+       LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
+\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       clear_trace();\r
 \r
 \r
+       if(!iso14443a_select_card(NULL, NULL, NULL)) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\r
+       };\r
+       \r
+       if(!mifare_ultra_auth(keybytes)){\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");\r
+               OnError(1);\r
+               return;\r
+       }\r
+\r
+       if (turnOffField) {\r
+               FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+               LEDsoff();\r
+       }\r
+       cmd_send(CMD_ACK,1,0,0,0,0);\r
 }\r
 \r
 }\r
 \r
-void MifareUReadBlock(uint8_t arg0,uint8_t *datain)\r
+// Arg0 = BlockNo,\r
+// Arg1 = UsePwd bool\r
+// datain = PWD bytes,\r
+void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)\r
 {\r
 {\r
-    // params\r
        uint8_t blockNo = arg0;\r
        uint8_t blockNo = arg0;\r
-       \r
-       // variables\r
-       byte_t isOK = 0;\r
-       byte_t dataoutbuf[16];\r
-       uint8_t uid[10];\r
-       uint32_t cuid;\r
-    \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-    \r
+       byte_t dataout[16] = {0x00};\r
+       bool useKey = (arg1 == 1); //UL_C\r
+       bool usePwd = (arg1 == 2); //UL_EV1/NTAG\r
+\r
+       LEDsoff();\r
        LED_A_ON();\r
        LED_A_ON();\r
-       LED_B_OFF();\r
-       LED_C_OFF();\r
-    \r
-       while (true) {\r
-               if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
-            if (MF_DBGLEVEL >= 1)      Dbprintf("Can't select card");\r
-                       break;\r
-               };\r
-        \r
-               if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) {\r
-            if (MF_DBGLEVEL >= 1)      Dbprintf("Read block error");\r
-                       break;\r
-               };\r
-        \r
-               if(mifare_ultra_halt(cuid)) {\r
-            if (MF_DBGLEVEL >= 1)      Dbprintf("Halt error");\r
-                       break;\r
-               };\r
-               \r
-               isOK = 1;\r
-               break;\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       clear_trace();\r
+\r
+       int len = iso14443a_select_card(NULL, NULL, NULL);\r
+       if(!len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);\r
+               OnError(1);\r
+               return;\r
        }\r
        }\r
-       \r
-       if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");\r
-    \r
-       LED_B_ON();\r
-    cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);\r
-       LED_B_OFF();\r
-    \r
-    \r
-    // Thats it...\r
+\r
+       // UL-C authentication\r
+       if ( useKey ) {\r
+               uint8_t key[16] = {0x00};\r
+               memcpy(key, datain, sizeof(key) );\r
+\r
+               if ( !mifare_ultra_auth(key) ) {\r
+                       OnError(1);\r
+                       return;\r
+               }\r
+       }\r
+\r
+       // UL-EV1 / NTAG authentication\r
+       if ( usePwd ) {\r
+               uint8_t pwd[4] = {0x00};\r
+               memcpy(pwd, datain, 4);\r
+               uint8_t pack[4] = {0,0,0,0};\r
+               if (!mifare_ul_ev1_auth(pwd, pack)) {\r
+                       OnError(1);\r
+                       return;\r
+               }\r
+       }       \r
+\r
+       if( mifare_ultra_readblock(blockNo, dataout) ) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");\r
+               OnError(2);\r
+               return;\r
+       }\r
+\r
+       if( mifare_ultra_halt() ) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");\r
+               OnError(3);\r
+               return;\r
+       }\r
+\r
+    cmd_send(CMD_ACK,1,0,0,dataout,16);\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 }\r
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 }\r
 \r
-\r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Read a MIFARE tag. \r
 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)\r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Read a MIFARE tag. \r
 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)\r
@@ -150,7 +189,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        ui64Key = bytes_to_num(datain, 6);\r
        \r
        // variables\r
        ui64Key = bytes_to_num(datain, 6);\r
        \r
        // variables\r
-       byte_t isOK;\r
+       byte_t isOK = 0;\r
        byte_t dataoutbuf[16 * 16];\r
        uint8_t uid[10];\r
        uint32_t cuid;\r
        byte_t dataoutbuf[16 * 16];\r
        uint8_t uid[10];\r
        uint32_t cuid;\r
@@ -158,12 +197,10 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-//     iso14a_set_tracing(false);\r
-\r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
+       clear_trace();\r
+\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
@@ -173,7 +210,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                isOK = 0;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
        }\r
                isOK = 0;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
        }\r
-\r
+       \r
        \r
        if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
                isOK = 0;\r
        \r
        if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
                isOK = 0;\r
@@ -192,7 +229,6 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
        }\r
 \r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
        }\r
 \r
-       \r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        \r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        \r
@@ -205,63 +241,104 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
 }\r
 \r
 }\r
 \r
-\r
-void MifareUReadCard(uint8_t arg0, uint8_t *datain)\r
+// arg0 = blockNo (start)\r
+// arg1 = Pages (number of blocks)\r
+// arg2 = useKey\r
+// datain = KEY bytes\r
+void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)\r
 {\r
 {\r
-  // params\r
-        uint8_t sectorNo = arg0;\r
-        \r
-        // variables\r
-        byte_t isOK = 0;\r
-        byte_t dataoutbuf[16 * 4];\r
-        uint8_t uid[10];\r
-        uint32_t cuid;\r
-\r
-        // clear trace\r
-        iso14a_clear_trace();\r
-//      iso14a_set_tracing(false);\r
+       LEDsoff();\r
+       LED_A_ON();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
 \r
-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       // free eventually allocated BigBuf memory\r
+       BigBuf_free();\r
+       clear_trace();\r
 \r
 \r
-        LED_A_ON();\r
-        LED_B_OFF();\r
-        LED_C_OFF();\r
-\r
-        while (true) {\r
-                if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
-                        break;\r
-                };\r
-               for(int sec=0;sec<16;sec++){\r
-                    if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) {\r
-                    if (MF_DBGLEVEL >= 1)   Dbprintf("Read block %d error",sec);\r
-                        break;\r
-                    };\r
-                }\r
-                if(mifare_ultra_halt(cuid)) {\r
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                        break;\r
-                };\r
-\r
-                isOK = 1;\r
-                break;\r
-        }\r
-        \r
-        if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");\r
-\r
-        LED_B_ON();\r
-               cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);\r
-        LED_B_OFF();\r
-\r
-        // Thats it...\r
-        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-        LEDsoff();\r
+       // params\r
+       uint8_t blockNo = arg0;\r
+       uint16_t blocks = arg1;\r
+       bool useKey = (arg2 == 1); //UL_C\r
+       bool usePwd = (arg2 == 2); //UL_EV1/NTAG\r
+       uint32_t countblocks = 0;\r
+       uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);\r
+       if (dataout == NULL){\r
+               Dbprintf("out of memory");\r
+               OnError(1);\r
+               return;\r
+       }\r
 \r
 \r
-}\r
+       int len = iso14443a_select_card(NULL, NULL, NULL);\r
+       if (!len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);\r
+               OnError(1);\r
+               return;\r
+       }\r
+\r
+       // UL-C authentication\r
+       if ( useKey ) {\r
+               uint8_t key[16] = {0x00};\r
+               memcpy(key, datain, sizeof(key) );\r
+\r
+               if ( !mifare_ultra_auth(key) ) {\r
+                       OnError(1);\r
+                       return;\r
+               }\r
+       }\r
+\r
+       // UL-EV1 / NTAG authentication\r
+       if (usePwd) {\r
+               uint8_t pwd[4] = {0x00};\r
+               memcpy(pwd, datain, sizeof(pwd));\r
+               uint8_t pack[4] = {0,0,0,0};\r
+\r
+               if (!mifare_ul_ev1_auth(pwd, pack)){\r
+                       OnError(1);\r
+                       return;                 \r
+               }\r
+       }\r
+\r
+       for (int i = 0; i < blocks; i++){\r
+               if ((i*4) + 4 >= CARD_MEMORY_SIZE) {\r
+                       Dbprintf("Data exceeds buffer!!");\r
+                       break;\r
+               }\r
+\r
+               len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);\r
+               \r
+               if (len) {\r
+                       if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);\r
+                       // if no blocks read - error out\r
+                       if (i==0){\r
+                               OnError(2);\r
+                       return;\r
+                       } else {\r
+                               //stop at last successful read block and return what we got\r
+                               break;\r
+                       }\r
+               } else {\r
+                       countblocks++;\r
+               }\r
+       }\r
+\r
+       len = mifare_ultra_halt();\r
+       if (len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");\r
+               OnError(3);\r
+               return;\r
+       }\r
+\r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);\r
 \r
 \r
+       countblocks *= 4;\r
+\r
+       cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(), 0, 0);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+       BigBuf_free();\r
+}\r
 \r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Write a MIFARE tag. \r
 \r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Write a MIFARE tag. \r
@@ -286,12 +363,10 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-//  iso14a_set_tracing(false);\r
-\r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
+       clear_trace();\r
+\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
@@ -334,127 +409,185 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
-\r
 }\r
 \r
 }\r
 \r
-\r
-void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)\r
+/* // Command not needed but left for future testing \r
+void MifareUWriteBlockCompat(uint8_t arg0, uint8_t *datain)\r
 {\r
 {\r
-        // params\r
-        uint8_t blockNo = arg0;\r
-        byte_t blockdata[16];\r
-\r
-        memset(blockdata,'\0',16);\r
-        memcpy(blockdata, datain,16);\r
-        \r
-        // variables\r
-        byte_t isOK = 0;\r
-        uint8_t uid[10];\r
-        uint32_t cuid;\r
-\r
-        // clear trace\r
-        iso14a_clear_trace();\r
-       //  iso14a_set_tracing(false);\r
+       uint8_t blockNo = arg0;\r
+       byte_t blockdata[16] = {0x00};\r
 \r
 \r
-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       memcpy(blockdata, datain, 16);\r
 \r
 \r
-        LED_A_ON();\r
-        LED_B_OFF();\r
-        LED_C_OFF();\r
-\r
-        while (true) {\r
-                if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
-                        if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
-                        break;\r
-                };\r
-\r
-                if(mifare_ultra_writeblock(cuid, blockNo, blockdata)) {\r
-                        if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");\r
-                        break;\r
-                };\r
-\r
-                if(mifare_ultra_halt(cuid)) {\r
-                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                        break;\r
-                };\r
-                \r
-                isOK = 1;\r
-                break;\r
-        }\r
-        \r
-        if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
-\r
-        LED_B_ON();\r
-               cmd_send(CMD_ACK,isOK,0,0,0,0);\r
-        LED_B_OFF();\r
-\r
-\r
-        // Thats it...\r
-        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
-}\r
+       uint8_t uid[10] = {0x00};\r
+\r
+       LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
 \r
 \r
+       clear_trace();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       if(!iso14443a_select_card(uid, NULL, NULL)) {\r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\r
+       };\r
+\r
+       if(mifare_ultra_writeblock_compat(blockNo, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");\r
+               OnError(0);\r
+               return; };\r
+\r
+       if(mifare_ultra_halt()) {\r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
+               OnError(0);\r
+               return;\r
+       };\r
+\r
+       if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
 \r
 \r
-void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)\r
+       cmd_send(CMD_ACK,1,0,0,0,0);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+}\r
+*/\r
+\r
+// Arg0   : Block to write to.\r
+// Arg1   : 0 = use no authentication.\r
+//          1 = use 0x1A authentication.\r
+//          2 = use 0x1B authentication.\r
+// datain : 4 first bytes is data to be written.\r
+//        : 4/16 next bytes is authentication key.\r
+void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)\r
 {\r
 {\r
-       // params\r
        uint8_t blockNo = arg0;\r
        uint8_t blockNo = arg0;\r
-       byte_t blockdata[4];\r
-       \r
+       bool useKey = (arg1 == 1); //UL_C\r
+       bool usePwd = (arg1 == 2); //UL_EV1/NTAG\r
+       byte_t blockdata[4] = {0x00};\r
+\r
        memcpy(blockdata, datain,4);\r
        memcpy(blockdata, datain,4);\r
+       \r
+       LEDsoff();\r
+       LED_A_ON();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
 \r
-       // variables\r
-       byte_t isOK = 0;\r
-       uint8_t uid[10];\r
-       uint32_t cuid;\r
+       clear_trace();\r
 \r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       //  iso14a_set_tracing(false);\r
+       if(!iso14443a_select_card(NULL, NULL, NULL)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\r
+       };\r
 \r
 \r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       // UL-C authentication\r
+       if ( useKey ) {\r
+               uint8_t key[16] = {0x00};       \r
+               memcpy(key, datain+4, sizeof(key) );\r
 \r
 \r
-       LED_A_ON();\r
-       LED_B_OFF();\r
-       LED_C_OFF();\r
+               if ( !mifare_ultra_auth(key) ) {\r
+                       OnError(1);\r
+                       return;                 \r
+               }\r
+       }\r
+       \r
+       // UL-EV1 / NTAG authentication\r
+       if (usePwd) { \r
+               uint8_t pwd[4] = {0x00};\r
+               memcpy(pwd, datain+4, 4);\r
+               uint8_t pack[4] = {0,0,0,0};\r
+               if (!mifare_ul_ev1_auth(pwd, pack)) {\r
+                       OnError(1);\r
+                       return;                 \r
+               }\r
+       }\r
+       \r
+       if(mifare_ultra_writeblock(blockNo, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
+               OnError(0);\r
+               return;\r
+       };\r
 \r
 \r
-       while (true) {\r
-               if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
-                       if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
-                       break;\r
-               };\r
+       if(mifare_ultra_halt()) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
+               OnError(0);\r
+               return;\r
+       };\r
 \r
 \r
-               if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {\r
-                       if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");\r
-                       break;\r
-               };\r
+       if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");\r
 \r
 \r
-               if(mifare_ultra_halt(cuid)) {\r
-                       if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                       break;\r
-               };\r
+       cmd_send(CMD_ACK,1,0,0,0,0);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+}\r
 \r
 \r
-               isOK = 1;\r
-               break;\r
-       }\r
+void MifareUSetPwd(uint8_t arg0, uint8_t *datain){\r
+       \r
+       uint8_t pwd[16] = {0x00};\r
+       byte_t blockdata[4] = {0x00};\r
+       \r
+       memcpy(pwd, datain, 16);\r
+       \r
+       LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
 \r
-       if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
+       clear_trace();\r
 \r
 \r
-       LED_B_ON();\r
-       cmd_send(CMD_ACK,isOK,0,0,0,0);\r
-       LED_B_OFF();\r
+       if(!iso14443a_select_card(NULL, NULL, NULL)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\r
+       };\r
 \r
 \r
+       blockdata[0] = pwd[7];\r
+       blockdata[1] = pwd[6];\r
+       blockdata[2] = pwd[5];\r
+       blockdata[3] = pwd[4];\r
+       if(mifare_ultra_writeblock( 44, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
+               OnError(44);\r
+               return;\r
+       };\r
 \r
 \r
-       // Thats it...\r
+       blockdata[0] = pwd[3];\r
+       blockdata[1] = pwd[2];\r
+       blockdata[2] = pwd[1];\r
+       blockdata[3] = pwd[0];\r
+       if(mifare_ultra_writeblock( 45, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
+               OnError(45);\r
+               return;\r
+       };\r
+\r
+       blockdata[0] = pwd[15];\r
+       blockdata[1] = pwd[14];\r
+       blockdata[2] = pwd[13];\r
+       blockdata[3] = pwd[12];\r
+       if(mifare_ultra_writeblock( 46, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
+               OnError(46);\r
+               return;\r
+       };\r
+\r
+       blockdata[0] = pwd[11];\r
+       blockdata[1] = pwd[10];\r
+       blockdata[2] = pwd[9];\r
+       blockdata[3] = pwd[8];\r
+       if(mifare_ultra_writeblock( 47, blockdata)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");\r
+               OnError(47);\r
+               return;\r
+       };      \r
+\r
+       if(mifare_ultra_halt()) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
+               OnError(0);\r
+               return;\r
+       };\r
+\r
+       cmd_send(CMD_ACK,1,0,0,0,0);\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
-\r
 }\r
 \r
 }\r
 \r
-\r
 // Return 1 if the nonce is invalid else return 0\r
 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {\r
        return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \\r
 // Return 1 if the nonce is invalid else return 0\r
 int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {\r
        return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \\r
@@ -492,24 +625,28 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        struct Crypto1State mpcs = {0, 0};\r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
        struct Crypto1State mpcs = {0, 0};\r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
 \r
        uint32_t auth1_time, auth2_time;\r
        static uint16_t delta_time;\r
 \r
 \r
        uint32_t auth1_time, auth2_time;\r
        static uint16_t delta_time;\r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       iso14a_set_tracing(false);\r
-       \r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
        LED_A_ON();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_C_OFF();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       // free eventually allocated BigBuf memory\r
+       BigBuf_free();\r
 \r
 \r
+       if (calibrate) clear_trace();\r
+       set_tracing(true);\r
 \r
        // statistics on nonce distance\r
 \r
        // statistics on nonce distance\r
+       int16_t isOK = 0;\r
+       #define NESTED_MAX_TRIES 12\r
+       uint16_t unsuccessfull_tries = 0;\r
        if (calibrate) {        // for first call only. Otherwise reuse previous calibration\r
                LED_B_ON();\r
        if (calibrate) {        // for first call only. Otherwise reuse previous calibration\r
                LED_B_ON();\r
+               WDT_HIT();\r
 \r
                davg = dmax = 0;\r
                dmin = 2000;\r
 \r
                davg = dmax = 0;\r
                dmin = 2000;\r
@@ -517,6 +654,12 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
                \r
                for (rtr = 0; rtr < 17; rtr++) {\r
 \r
                \r
                for (rtr = 0; rtr < 17; rtr++) {\r
 \r
+                       // Test if the action was cancelled\r
+                       if(BUTTON_PRESS()) {\r
+                               isOK = -2;\r
+                               break;\r
+                       }\r
+\r
                        // prepare next select. No need to power down the card.\r
                        if(mifare_classic_halt(pcs, cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");\r
                        // prepare next select. No need to power down the card.\r
                        if(mifare_classic_halt(pcs, cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Halt error");\r
@@ -564,27 +707,29 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
                                        delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing\r
                                }\r
                                if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);\r
                                        delta_time = auth2_time - auth1_time + 32;  // allow some slack for proper timing\r
                                }\r
                                if (MF_DBGLEVEL >= 3) Dbprintf("Nested: calibrating... ntdist=%d", i);\r
+                       } else {\r
+                               unsuccessfull_tries++;\r
+                               if (unsuccessfull_tries > NESTED_MAX_TRIES) {   // card isn't vulnerable to nested attack (random numbers are not predictable)\r
+                                       isOK = -3;\r
+                               }\r
                        }\r
                }\r
                        }\r
                }\r
-               \r
-               if (rtr <= 1)   return;\r
 \r
                davg = (davg + (rtr - 1)/2) / (rtr - 1);\r
                \r
 \r
                davg = (davg + (rtr - 1)/2) / (rtr - 1);\r
                \r
-               if (MF_DBGLEVEL >= 3) Dbprintf("min=%d max=%d avg=%d, delta_time=%d", dmin, dmax, davg, delta_time);\r
+               if (MF_DBGLEVEL >= 3) Dbprintf("rtr=%d isOK=%d min=%d max=%d avg=%d, delta_time=%d", rtr, isOK, dmin, dmax, davg, delta_time);\r
 \r
                dmin = davg - 2;\r
                dmax = davg + 2;\r
                \r
                LED_B_OFF();\r
 \r
                dmin = davg - 2;\r
                dmax = davg + 2;\r
                \r
                LED_B_OFF();\r
-       \r
        }\r
 //  -------------------------------------------------------------------------------------------------  \r
        \r
        LED_C_ON();\r
 \r
        //  get crypted nonces for target sector\r
        }\r
 //  -------------------------------------------------------------------------------------------------  \r
        \r
        LED_C_ON();\r
 \r
        //  get crypted nonces for target sector\r
-       for(i=0; i < 2; i++) { // look for exactly two different nonces\r
+       for(i=0; i < 2 && !isOK; i++) { // look for exactly two different nonces\r
 \r
                target_nt[i] = 0;\r
                while(target_nt[i] == 0) { // continue until we have an unambiguous nonce\r
 \r
                target_nt[i] = 0;\r
                while(target_nt[i] == 0) { // continue until we have an unambiguous nonce\r
@@ -608,7 +753,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 \r
                        // nested authentication\r
                        auth2_time = auth1_time + delta_time;\r
 \r
                        // nested authentication\r
                        auth2_time = auth1_time + delta_time;\r
-                       len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);\r
+                       len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);\r
                        if (len != 4) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);\r
                                continue;\r
                        if (len != 4) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);\r
                                continue;\r
@@ -662,25 +807,26 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        memcpy(buf+16, &target_ks[1], 4);\r
        \r
        LED_B_ON();\r
        memcpy(buf+16, &target_ks[1], 4);\r
        \r
        LED_B_ON();\r
-       cmd_send(CMD_ACK, 0, 2, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));\r
+       cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));\r
        LED_B_OFF();\r
 \r
        if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");\r
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        LED_B_OFF();\r
 \r
        if (MF_DBGLEVEL >= 3)   DbpString("NESTED FINISHED");\r
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-       iso14a_set_tracing(TRUE);\r
+       set_tracing(FALSE);\r
 }\r
 \r
 //-----------------------------------------------------------------------------\r
 // MIFARE check keys. key count up to 85. \r
 // \r
 //-----------------------------------------------------------------------------\r
 }\r
 \r
 //-----------------------------------------------------------------------------\r
 // MIFARE check keys. key count up to 85. \r
 // \r
 //-----------------------------------------------------------------------------\r
-void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
+void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
 {\r
   // params\r
 {\r
   // params\r
-       uint8_t blockNo = arg0;\r
-       uint8_t keyType = arg1;\r
+       uint8_t blockNo = arg0 & 0xff;\r
+       uint8_t keyType = (arg0 >> 8) & 0xff;\r
+       bool clearTrace = arg1;\r
        uint8_t keyCount = arg2;\r
        uint64_t ui64Key = 0;\r
        \r
        uint8_t keyCount = arg2;\r
        uint64_t ui64Key = 0;\r
        \r
@@ -697,15 +843,13 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        int OLD_MF_DBGLEVEL = MF_DBGLEVEL;      \r
        MF_DBGLEVEL = MF_DBG_NONE;\r
        \r
        int OLD_MF_DBGLEVEL = MF_DBGLEVEL;      \r
        MF_DBGLEVEL = MF_DBG_NONE;\r
        \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       iso14a_set_tracing(TRUE);\r
-\r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       if (clearTrace) clear_trace();\r
+       set_tracing(TRUE);\r
 \r
        for (i = 0; i < keyCount; i++) {\r
                if(mifare_classic_halt(pcs, cuid)) {\r
 \r
        for (i = 0; i < keyCount; i++) {\r
                if(mifare_classic_halt(pcs, cuid)) {\r
@@ -733,10 +877,10 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);\r
        LED_B_OFF();\r
 \r
     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);\r
        LED_B_OFF();\r
 \r
-  // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-\r
+       set_tracing(FALSE);\r
+       \r
        // restore debug level\r
        MF_DBGLEVEL = OLD_MF_DBGLEVEL;  \r
 }\r
        // restore debug level\r
        MF_DBGLEVEL = OLD_MF_DBGLEVEL;  \r
 }\r
@@ -750,32 +894,35 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        Dbprintf("Debug level: %d", MF_DBGLEVEL);\r
 }\r
 \r
        Dbprintf("Debug level: %d", MF_DBGLEVEL);\r
 }\r
 \r
-\r
 //-----------------------------------------------------------------------------\r
 // Work with emulator memory\r
 // \r
 //-----------------------------------------------------------------------------\r
 // Work with emulator memory\r
 // \r
+// Note: we call FpgaDownloadAndGo(FPGA_BITSTREAM_HF) here although FPGA is not\r
+// involved in dealing with emulator memory. But if it is called later, it might\r
+// destroy the Emulator Memory.\r
 //-----------------------------------------------------------------------------\r
 //-----------------------------------------------------------------------------\r
+\r
 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
 void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
        emlClearMem();\r
 }\r
 \r
        emlClearMem();\r
 }\r
 \r
-\r
 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
-       emlSetMem(datain, arg0, arg1); // data, block num, blocks count\r
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
+       //emlSetMem(datain, arg0, arg1); // data, block num, blocks count        \r
+       emlSetMem_xt(datain, arg0, arg1, arg2); // data, block num, blocks count, block byte width\r
 }\r
 \r
 }\r
 \r
-\r
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
-\r
-       byte_t buf[48];\r
+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r
+       byte_t buf[USB_CMD_DATA_SIZE];\r
        emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)\r
 \r
        LED_B_ON();\r
        emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)\r
 \r
        LED_B_ON();\r
-       cmd_send(CMD_ACK,arg0,arg1,0,buf,48);\r
+       cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);\r
        LED_B_OFF();\r
 }\r
 \r
        LED_B_OFF();\r
 }\r
 \r
-\r
 //-----------------------------------------------------------------------------\r
 // Load a card into the emulator memory\r
 // \r
 //-----------------------------------------------------------------------------\r
 // Load a card into the emulator memory\r
 // \r
@@ -794,15 +941,13 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        byte_t dataoutbuf2[16];\r
        uint8_t uid[10];\r
 \r
        byte_t dataoutbuf2[16];\r
        uint8_t uid[10];\r
 \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       iso14a_set_tracing(false);\r
-       \r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       \r
+       clear_trace();\r
+       set_tracing(TRUE);\r
        \r
        bool isOK = true;\r
 \r
        \r
        bool isOK = true;\r
 \r
@@ -858,6 +1003,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \r
        if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");\r
 \r
        \r
        if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");\r
 \r
+       set_tracing(FALSE);\r
 }\r
 \r
 \r
 }\r
 \r
 \r
@@ -884,42 +1030,36 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \r
        // variables\r
        byte_t isOK = 0;\r
        \r
        // variables\r
        byte_t isOK = 0;\r
-       uint8_t uid[10];\r
-       uint8_t d_block[18];\r
+       uint8_t uid[10] = {0x00};\r
+       uint8_t d_block[18] = {0x00};\r
        uint32_t cuid;\r
        \r
        uint32_t cuid;\r
        \r
-       memset(uid, 0x00, 10);\r
-       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
 \r
 \r
+       // reset FPGA and LED\r
        if (workFlags & 0x08) {\r
        if (workFlags & 0x08) {\r
-               // clear trace\r
-               iso14a_clear_trace();\r
-               iso14a_set_tracing(TRUE);\r
-\r
-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
+               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
        \r
        \r
-               SpinDelay(300);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-               SpinDelay(100);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);\r
+               clear_trace();\r
+               set_tracing(TRUE);\r
        }\r
 \r
        while (true) {\r
        }\r
 \r
        while (true) {\r
+\r
                // get UID from chip\r
                if (workFlags & 0x01) {\r
                        if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                // get UID from chip\r
                if (workFlags & 0x01) {\r
                        if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
-                               break;\r
+                               //break;\r
                        };\r
 \r
                        if(mifare_classic_halt(NULL, cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
                        };\r
 \r
                        if(mifare_classic_halt(NULL, cuid)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                               break;\r
+                               //break;\r
                        };\r
                };\r
        \r
                        };\r
                };\r
        \r
@@ -988,9 +1128,9 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
-               // Thats it...\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\r
+               set_tracing(FALSE);\r
        }\r
 }\r
 \r
        }\r
 }\r
 \r
@@ -1002,6 +1142,7 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        // bit 2 - need HALT after sequence\r
        // bit 3 - need init FPGA and field before sequence\r
        // bit 4 - need reset FPGA and LED\r
        // bit 2 - need HALT after sequence\r
        // bit 3 - need init FPGA and field before sequence\r
        // bit 4 - need reset FPGA and LED\r
+       // bit 5 - need to set datain instead of issuing USB reply (called via ARM for StandAloneMode14a)\r
        uint8_t workFlags = arg0;\r
        uint8_t blockNo = arg2;\r
        \r
        uint8_t workFlags = arg0;\r
        uint8_t blockNo = arg2;\r
        \r
@@ -1011,28 +1152,20 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \r
        // variables\r
        byte_t isOK = 0;\r
        \r
        // variables\r
        byte_t isOK = 0;\r
-       uint8_t data[18];\r
+       uint8_t data[18] = {0x00};\r
        uint32_t cuid = 0;\r
        \r
        uint32_t cuid = 0;\r
        \r
-       memset(data, 0x00, 18);\r
-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
        \r
        if (workFlags & 0x08) {\r
        \r
        if (workFlags & 0x08) {\r
-               // clear trace\r
-               iso14a_clear_trace();\r
-               iso14a_set_tracing(TRUE);\r
-\r
-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
+               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
        \r
        \r
-               SpinDelay(300);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-               SpinDelay(100);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);\r
+               clear_trace();\r
+               set_tracing(TRUE);\r
        }\r
 \r
        while (true) {\r
        }\r
 \r
        while (true) {\r
@@ -1069,13 +1202,168 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        }\r
        \r
        LED_B_ON();\r
        }\r
        \r
        LED_B_ON();\r
+       if (workFlags & 0x20) {\r
+               if (isOK)\r
+                       memcpy(datain, data, 18);\r
+       }\r
+       else\r
        cmd_send(CMD_ACK,isOK,0,0,data,18);\r
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
        cmd_send(CMD_ACK,isOK,0,0,data,18);\r
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
-               // Thats it...\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\r
+               set_tracing(FALSE);\r
+       }\r
+}\r
+\r
+void MifareCIdent(){\r
+  \r
+       // card commands\r
+       uint8_t wupC1[]       = { 0x40 }; \r
+       uint8_t wupC2[]       = { 0x43 }; \r
+       \r
+       // variables\r
+       byte_t isOK = 1;\r
+       \r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+\r
+       ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
+       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
+               isOK = 0;\r
+       };\r
+\r
+       ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
+       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
+               isOK = 0;\r
+       };\r
+\r
+       if (mifare_classic_halt(NULL, 0)) {\r
+               isOK = 0;\r
+       };\r
+\r
+       cmd_send(CMD_ACK,isOK,0,0,0,0);\r
+}\r
+\r
+void MifareCollectNonces(uint32_t arg0, uint32_t arg1){\r
+\r
+       BigBuf_free();\r
+\r
+       uint32_t iterations = arg0;\r
+       uint8_t uid[10] = {0x00};\r
+\r
+       uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);\r
+       uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);\r
+\r
+       uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };\r
+       \r
+       // get memory from BigBuf.\r
+       uint8_t *nonces = BigBuf_malloc(iterations * 4);\r
+\r
+       LED_A_ON();\r
+       LED_B_OFF();\r
+       LED_C_OFF();\r
+       \r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       clear_trace();\r
+       set_tracing(TRUE);\r
+               \r
+       for (int i = 0; i < iterations; i++) {\r
+                                               \r
+               WDT_HIT();\r
+\r
+               // Test if the action was cancelled\r
+               if(BUTTON_PRESS()) break;\r
+               \r
+               //              if(mifare_classic_halt(pcs, cuid)) {\r
+               //                      if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");\r
+               //}\r
+\r
+               if(!iso14443a_select_card(uid, NULL, NULL)) {\r
+                       if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+                       continue;\r
+               };\r
+\r
+               // Transmit MIFARE_CLASSIC_AUTH.\r
+               ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);\r
+\r
+               // Receive the (4 Byte) "random" nonce\r
+               if (!ReaderReceive(response, responsePar)) {\r
+                       if (MF_DBGLEVEL >= 1)   Dbprintf("Couldn't receive tag nonce");\r
+                       continue;\r
+               }       \r
+               \r
+               nonces[i*4] = bytes_to_num(response, 4);\r
+       }\r
+               \r
+       int packLen =  iterations * 4;\r
+       int packSize = 0;\r
+       int packNum = 0;\r
+       while (packLen > 0) {\r
+               packSize = MIN(USB_CMD_DATA_SIZE, packLen);\r
+               LED_B_ON();\r
+               cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);\r
+               LED_B_OFF();\r
+\r
+               packLen -= packSize;\r
+               packNum++;\r
+       }\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+       set_tracing(FALSE);\r
+}\r
+\r
+//\r
+// DESFIRE\r
+//\r
+\r
+void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){\r
+\r
+       byte_t dataout[11] = {0x00};\r
+       uint8_t uid[10] = {0x00};\r
+       uint32_t cuid = 0x00;\r
+    \r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       clear_trace();\r
+\r
+       int len = iso14443a_select_card(uid, NULL, &cuid);\r
+       if(!len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");\r
+               OnError(1);\r
+               return;\r
+       };\r
+\r
+       if(mifare_desfire_des_auth1(cuid, dataout)){\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");\r
+               OnError(4);\r
+               return;\r
        }\r
        }\r
+\r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");\r
+    cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));\r
 }\r
 \r
 }\r
 \r
+void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){\r
+\r
+       uint32_t cuid = arg0;\r
+       uint8_t key[16] = {0x00};\r
+       byte_t dataout[12] = {0x00};\r
+       byte_t isOK = 0;\r
+    \r
+       memcpy(key, datain, 16);\r
+       \r
+       isOK = mifare_desfire_des_auth2(cuid, key, dataout);\r
+       \r
+       if( isOK) {\r
+           if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");  \r
+               OnError(4);\r
+               return;\r
+       }\r
+\r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");\r
+\r
+       cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+}
\ No newline at end of file
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