Merge pull request #361 from marshmellow42/master

[proxmark3-svn] / armsrc / mifarecmd.c

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index 8541553ba28b0386aa4d22aae49f771301d09813..0e9c36725ec4ad24d2be46e2e51342c30b6a7534 100644 (file)
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -14,10 +14,23 @@
 //-----------------------------------------------------------------------------\r
 \r
 #include "mifarecmd.h"\r
 //-----------------------------------------------------------------------------\r
 \r
 #include "mifarecmd.h"\r

+\r

 #include "apps.h"\r
 #include "apps.h"\r

+#include "util.h"\r
+#include "parity.h"\r
+#include "crc.h"\r
+\r
+#define AUTHENTICATION_TIMEOUT 848                     // card times out 1ms after wrong authentication (according to NXP documentation)\r
+#define PRE_AUTHENTICATION_LEADTIME 400                // some (non standard) cards need a pause after select before they are ready for first authentication\r
+\r
+\r
+// the block number for the ISO14443-4 PCB\r
+static uint8_t pcb_blocknum = 0;\r
+// Deselect card by sending a s-block. the crc is precalced for speed\r
+static  uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};\r

 \r
 //-----------------------------------------------------------------------------\r
 \r
 //-----------------------------------------------------------------------------\r

-// Select, Authenticate, Read a MIFARE tag. \r
+// Select, Authenticate, Read a MIFARE tag.\r

 // read block\r
 //-----------------------------------------------------------------------------\r
 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
 // read block\r
 //-----------------------------------------------------------------------------\r
 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r


@@ -27,7 +40,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        uint8_t keyType = arg1;\r
        uint64_t ui64Key = 0;\r
        ui64Key = bytes_to_num(datain, 6);\r
        uint8_t keyType = arg1;\r
        uint64_t ui64Key = 0;\r
        ui64Key = bytes_to_num(datain, 6);\r

-       \r
+\r

        // variables\r
        byte_t isOK = 0;\r
        byte_t dataoutbuf[16];\r
        // variables\r
        byte_t isOK = 0;\r
        byte_t dataoutbuf[16];\r


@@ -37,16 +50,16 @@ 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

        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
 \r
        while (true) {\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(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                        if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                        break;\r
                };\r


@@ -55,7 +68,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
                        break;\r
                };\r

-               \r
+\r

                if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");\r
                        break;\r
                if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Read block error");\r
                        break;\r


@@ -65,75 +78,117 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
                        break;\r
                };\r

-               \r
+\r

                isOK = 1;\r
                break;\r
        }\r
                isOK = 1;\r
                break;\r
        }\r

-       \r
+\r

        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\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
        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

-       // Thats it...\r

        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 }\r
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 }\r
 \r

-void MifareUReadBlock(uint8_t arg0,uint8_t *datain)\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
+       if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\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
+// 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, true, 0);\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
+       // 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
 //-----------------------------------------------------------------------------\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 }\r
 \r
 //-----------------------------------------------------------------------------\r

-// Select, Authenticate, Read a MIFARE tag. \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
 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)\r
 //-----------------------------------------------------------------------------\r
 void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r


@@ -143,7 +198,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        uint8_t keyType = arg1;\r
        uint64_t ui64Key = 0;\r
        ui64Key = bytes_to_num(datain, 6);\r
        uint8_t keyType = arg1;\r
        uint64_t ui64Key = 0;\r
        ui64Key = bytes_to_num(datain, 6);\r

-       \r
+\r

        // variables\r
        byte_t isOK = 0;\r
        byte_t dataoutbuf[16 * 16];\r
        // variables\r
        byte_t isOK = 0;\r
        byte_t dataoutbuf[16 * 16];\r


@@ -153,27 +208,26 @@ 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
-\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
 \r
        isOK = 1;\r
        LED_A_ON();\r
        LED_B_OFF();\r
        LED_C_OFF();\r
 \r
        isOK = 1;\r

-       if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
+       if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                isOK = 0;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
        }\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
                if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
        }\r
        if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {\r
                isOK = 0;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
        }\r

-       \r
+\r

        for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {\r
                        isOK = 0;\r
        for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {\r
                        isOK = 0;\r


@@ -181,14 +235,14 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                        break;\r
                }\r
        }\r
                        break;\r
                }\r
        }\r

-               \r
+\r

        if(mifare_classic_halt(pcs, cuid)) {\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
        }\r
 \r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        if(mifare_classic_halt(pcs, cuid)) {\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
        }\r
 \r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r

-       \r
+\r

        if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");\r
 \r
        LED_B_ON();\r
        if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");\r
 \r
        LED_B_ON();\r


@@ -200,63 +254,105 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        LEDsoff();\r
 }\r
 \r
        LEDsoff();\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, true, 0);\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
 \r
 //-----------------------------------------------------------------------------\r

-// Select, Authenticate, Write a MIFARE tag. \r
+// Select, Authenticate, Write a MIFARE tag.\r

 // read block\r
 //-----------------------------------------------------------------------------\r
 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r
 // read block\r
 //-----------------------------------------------------------------------------\r
 void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)\r


@@ -269,7 +365,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 \r
        ui64Key = bytes_to_num(datain, 6);\r
        memcpy(blockdata, datain + 10, 16);\r
 \r
        ui64Key = bytes_to_num(datain, 6);\r
        memcpy(blockdata, datain + 10, 16);\r

-       \r
+\r

        // variables\r
        byte_t isOK = 0;\r
        uint8_t uid[10];\r
        // variables\r
        byte_t isOK = 0;\r
        uint8_t uid[10];\r


@@ -278,17 +374,16 @@ 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
-\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
 \r
        while (true) {\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(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                        if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                        break;\r
                };\r


@@ -297,7 +392,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Auth error");\r
                        break;\r
                };\r

-               \r
+\r

                if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");\r
                        break;\r
                if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");\r
                        break;\r


@@ -307,14 +402,14 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
                        break;\r
                };\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
                        break;\r
                };\r

-               \r
+\r

                isOK = 1;\r
                break;\r
        }\r
                isOK = 1;\r
                break;\r
        }\r

-       \r
+\r

        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r

-       \r
+\r

        if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
 \r
        LED_B_ON();\r
        if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
 \r
        LED_B_ON();\r


@@ -327,126 +422,323 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        LEDsoff();\r
 }\r
 \r
        LEDsoff();\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
+       uint8_t blockNo = arg0;\r
+       byte_t blockdata[16] = {0x00};\r
+\r
+       memcpy(blockdata, datain, 16);\r

 \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
+       uint8_t uid[10] = {0x00};\r

 \r
 \r

-        // clear trace\r
-        iso14a_clear_trace();\r
+       LED_A_ON(); LED_B_OFF(); LED_C_OFF();\r

 \r
 \r

-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       clear_trace();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\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
+       if(!iso14443a_select_card(uid, NULL, NULL, true, 0)) {\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
 \r

-void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)\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
+       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
 \r
        memcpy(blockdata, datain,4);\r
 \r

-       // variables\r
-       byte_t isOK = 0;\r
-       uint8_t uid[10];\r
-       uint32_t cuid;\r
+       LEDsoff();\r
+       LED_A_ON();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       clear_trace();\r
+\r
+       if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\r
+       };\r
+\r
+       // UL-C authentication\r
+       if ( useKey ) {\r
+               uint8_t key[16] = {0x00};\r
+               memcpy(key, datain+4, 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, 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
+       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
+       cmd_send(CMD_ACK,1,0,0,0,0);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+}\r
+\r
+void MifareUSetPwd(uint8_t arg0, uint8_t *datain){\r

 \r
 \r

-       // clear trace\r
-       iso14a_clear_trace();\r
+       uint8_t pwd[16] = {0x00};\r
+       byte_t blockdata[4] = {0x00};\r

 \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
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r

+       clear_trace();\r
+\r
+       if(!iso14443a_select_card(NULL, NULL, NULL, true, 0)) {\r
+               if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");\r
+               OnError(0);\r
+               return;\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
+       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
+}\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 ((oddparity8((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity8((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \\r
+       (oddparity8((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity8((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \\r
+       (oddparity8((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity8((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;\r
+}\r
+\r
+\r
+//-----------------------------------------------------------------------------\r
+// acquire encrypted nonces in order to perform the attack described in\r
+// Carlo Meijer, Roel Verdult, "Ciphertext-only Cryptanalysis on Hardened\r
+// Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on\r
+// Computer and Communications Security, 2015\r
+//-----------------------------------------------------------------------------\r
+void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain)\r
+{\r
+       uint64_t ui64Key = 0;\r
+       uint8_t uid[10];\r
+       uint32_t cuid;\r
+       uint8_t cascade_levels = 0;\r
+       struct Crypto1State mpcs = {0, 0};\r
+       struct Crypto1State *pcs;\r
+       pcs = &mpcs;\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       int16_t isOK = 0;\r
+       uint8_t par_enc[1];\r
+       uint8_t nt_par_enc = 0;\r
+       uint8_t buf[USB_CMD_DATA_SIZE];\r
+       uint32_t timeout;\r
+\r
+       uint8_t blockNo = arg0 & 0xff;\r
+       uint8_t keyType = (arg0 >> 8) & 0xff;\r
+       uint8_t targetBlockNo = arg1 & 0xff;\r
+       uint8_t targetKeyType = (arg1 >> 8) & 0xff;\r
+       ui64Key = bytes_to_num(datain, 6);\r
+       bool initialize = flags & 0x0001;\r
+       bool slow = flags & 0x0002;\r
+       bool field_off = flags & 0x0004;\r
+\r

        LED_A_ON();\r
        LED_A_ON();\r

-       LED_B_OFF();\r

        LED_C_OFF();\r
 \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
+       if (initialize) {\r
+               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+               clear_trace();\r
+               set_tracing(true);\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
+       LED_C_ON();\r
+\r
+       uint16_t num_nonces = 0;\r
+       bool have_uid = false;\r
+       for (uint16_t i = 0; i <= USB_CMD_DATA_SIZE - 9; ) {\r

 \r
 \r

-               if(mifare_ultra_halt(cuid)) {\r
-                       if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
+               // Test if the action was cancelled\r
+               if(BUTTON_PRESS()) {\r
+                       isOK = 2;\r
+                       field_off = true;\r

                        break;\r
                        break;\r

-               };\r
+               }\r
+\r
+               if (!have_uid) { // need a full select cycle to get the uid first\r
+                       iso14a_card_select_t card_info;\r
+                       if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {\r
+                               if (MF_DBGLEVEL >= 1)   Dbprintf("AcquireNonces: Can't select card (ALL)");\r
+                               continue;\r
+                       }\r
+                       switch (card_info.uidlen) {\r
+                               case 4 : cascade_levels = 1; break;\r
+                               case 7 : cascade_levels = 2; break;\r
+                               case 10: cascade_levels = 3; break;\r
+                               default: break;\r
+                       }\r
+                       have_uid = true;\r
+               } else { // no need for anticollision. We can directly select the card\r
+                       if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {\r
+                               if (MF_DBGLEVEL >= 1)   Dbprintf("AcquireNonces: Can't select card (UID)");\r
+                               continue;\r
+                       }\r
+               }\r
+\r
+               if (slow) {\r
+                       timeout = GetCountSspClk() + PRE_AUTHENTICATION_LEADTIME;\r
+                       while(GetCountSspClk() < timeout);\r
+               }\r
+\r
+               uint32_t nt1;\r
+               if (mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, NULL)) {\r
+                       if (MF_DBGLEVEL >= 1)   Dbprintf("AcquireNonces: Auth1 error");\r
+                       continue;\r
+               }\r
+\r
+               // nested authentication\r
+               uint16_t len = mifare_sendcmd_short(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par_enc, NULL);\r
+               if (len != 4) {\r
+                       if (MF_DBGLEVEL >= 1)   Dbprintf("AcquireNonces: Auth2 error len=%d", len);\r
+                       continue;\r
+               }\r
+\r
+               // send a dummy byte as reader response in order to trigger the cards authentication timeout\r
+               uint8_t dummy_answer = 0;\r
+               ReaderTransmit(&dummy_answer, 1, NULL);\r
+               timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;\r
+\r
+               num_nonces++;\r
+               if (num_nonces % 2) {\r
+                       memcpy(buf+i, receivedAnswer, 4);\r
+                       nt_par_enc = par_enc[0] & 0xf0;\r
+               } else {\r
+                       nt_par_enc |= par_enc[0] >> 4;\r
+                       memcpy(buf+i+4, receivedAnswer, 4);\r
+                       memcpy(buf+i+8, &nt_par_enc, 1);\r
+                       i += 9;\r
+               }\r
+\r
+               // wait for the card to become ready again\r
+               while(GetCountSspClk() < timeout);\r

 \r
 \r

-               isOK = 1;\r
-               break;\r

        }\r
 \r
        }\r
 \r

-       if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");\r
+       LED_C_OFF();\r
+\r
+       crypto1_destroy(pcs);\r

 \r
        LED_B_ON();\r
 \r
        LED_B_ON();\r

-       cmd_send(CMD_ACK,isOK,0,0,0,0);\r
+       cmd_send(CMD_ACK, isOK, cuid, num_nonces, buf, sizeof(buf));\r

        LED_B_OFF();\r
 \r
        LED_B_OFF();\r
 \r

-       // Thats it...\r
-       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-       LEDsoff();\r
-}\r
+       if (MF_DBGLEVEL >= 3)   DbpString("AcquireEncryptedNonces finished");\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
-       (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \\r
-       (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;\r
+       if (field_off) {\r
+               FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+               LEDsoff();\r
+       }\r

 }\r
 \r
 \r
 //-----------------------------------------------------------------------------\r
 }\r
 \r
 \r
 //-----------------------------------------------------------------------------\r

-// MIFARE nested authentication. \r
-// \r
+// MIFARE nested authentication.\r
+//\r

 //-----------------------------------------------------------------------------\r
 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)\r
 {\r
 //-----------------------------------------------------------------------------\r
 void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)\r
 {\r


@@ -458,7 +750,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        uint64_t ui64Key = 0;\r
 \r
        ui64Key = bytes_to_num(datain, 6);\r
        uint64_t ui64Key = 0;\r
 \r
        ui64Key = bytes_to_num(datain, 6);\r

-       \r
+\r

        // variables\r
        uint16_t rtr, i, j, len;\r
        uint16_t davg;\r
        // variables\r
        uint16_t rtr, i, j, len;\r
        uint16_t davg;\r


@@ -467,28 +759,31 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;\r
        uint8_t par[1];\r
        uint32_t target_nt[2], target_ks[2];\r
        uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;\r
        uint8_t par[1];\r
        uint32_t target_nt[2], target_ks[2];\r

-       \r
+\r

        uint8_t par_array[4];\r
        uint16_t ncount = 0;\r
        struct Crypto1State mpcs = {0, 0};\r
        struct Crypto1State *pcs;\r
        pcs = &mpcs;\r
        uint8_t par_array[4];\r
        uint16_t ncount = 0;\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
                WDT_HIT();\r
        if (calibrate) {        // for first call only. Otherwise reuse previous calibration\r
                LED_B_ON();\r
                WDT_HIT();\r


@@ -496,9 +791,15 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
                davg = dmax = 0;\r
                dmin = 2000;\r
                delta_time = 0;\r
                davg = dmax = 0;\r
                dmin = 2000;\r
                delta_time = 0;\r

-               \r
+\r

                for (rtr = 0; rtr < 17; rtr++) {\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


@@ -506,7 +807,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
                                continue;\r
                        }\r
 \r
                                continue;\r
                        }\r
 \r

-                       if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
+                       if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");\r
                                rtr--;\r
                                continue;\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");\r
                                rtr--;\r
                                continue;\r


@@ -546,42 +847,45 @@ 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
                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
+\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
                dmin = davg - 2;\r
                dmax = davg + 2;\r

-               \r
+\r

                LED_B_OFF();\r
                LED_B_OFF();\r

-       \r
+\r

        }\r
        }\r

-//  -------------------------------------------------------------------------------------------------  \r
-       \r
+       //  -------------------------------------------------------------------------------------------------\r
+\r

        LED_C_ON();\r
 \r
        //  get crypted nonces for target sector\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

-               \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
                                continue;\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
                                continue;\r
                        }\r
 \r

-                       if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
+                       if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");\r
                                continue;\r
                        };\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Can't select card");\r
                                continue;\r
                        };\r

-               \r
+\r

                        auth1_time = 0;\r
                        if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");\r
                        auth1_time = 0;\r
                        if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth1 error");\r


@@ -590,20 +894,20 @@ 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
                        };\r
                        if (len != 4) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Nested: Auth2 error len=%d", len);\r
                                continue;\r
                        };\r

-               \r
-                       nt2 = bytes_to_num(receivedAnswer, 4);          \r
+\r
+                       nt2 = bytes_to_num(receivedAnswer, 4);\r

                        if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);\r
                        if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);\r

-                       \r
+\r

                        // Parity validity check\r
                        for (j = 0; j < 4; j++) {\r
                        // Parity validity check\r
                        for (j = 0; j < 4; j++) {\r

-                               par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));\r
+                               par_array[j] = (oddparity8(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));\r

                        }\r
                        }\r

-                       \r
+\r

                        ncount = 0;\r
                        nttest = prng_successor(nt1, dmin - 1);\r
                        for (j = dmin; j < dmax + 1; j++) {\r
                        ncount = 0;\r
                        nttest = prng_successor(nt1, dmin - 1);\r
                        for (j = dmin; j < dmax + 1; j++) {\r


@@ -632,41 +936,42 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        }\r
 \r
        LED_C_OFF();\r
        }\r
 \r
        LED_C_OFF();\r

-       \r
+\r

        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r

-       \r
+\r

        byte_t buf[4 + 4 * 4];\r
        memcpy(buf, &cuid, 4);\r
        memcpy(buf+4, &target_nt[0], 4);\r
        memcpy(buf+8, &target_ks[0], 4);\r
        memcpy(buf+12, &target_nt[1], 4);\r
        memcpy(buf+16, &target_ks[1], 4);\r
        byte_t buf[4 + 4 * 4];\r
        memcpy(buf, &cuid, 4);\r
        memcpy(buf+4, &target_nt[0], 4);\r
        memcpy(buf+8, &target_ks[0], 4);\r
        memcpy(buf+12, &target_nt[1], 4);\r
        memcpy(buf+16, &target_ks[1], 4);\r

-       \r
+\r

        LED_B_ON();\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

 }\r
 \r
 //-----------------------------------------------------------------------------\r
 }\r
 \r
 //-----------------------------------------------------------------------------\r

-// MIFARE check keys. key count up to 85. \r
-// \r
+// MIFARE check keys. key count up to 85.\r
+//\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
 {\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
        uint8_t keyCount = arg2;\r
        uint64_t ui64Key = 0;\r

-       \r
-       // variables\r
+\r
+       bool have_uid = false;\r
+       uint8_t cascade_levels = 0;\r
+       uint32_t timeout = 0;\r

        int i;\r
        byte_t isOK = 0;\r
        uint8_t uid[10];\r
        int i;\r
        byte_t isOK = 0;\r
        uint8_t uid[10];\r


@@ -674,43 +979,62 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        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

-       \r
+\r

        // clear debug level\r
        // clear debug level\r

-       int OLD_MF_DBGLEVEL = MF_DBGLEVEL;      \r
+       int OLD_MF_DBGLEVEL = MF_DBGLEVEL;\r

        MF_DBGLEVEL = MF_DBG_NONE;\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
 \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
 \r
        for (i = 0; i < keyCount; i++) {\r

-               if(mifare_classic_halt(pcs, cuid)) {\r
-                       if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");\r
+//             if(mifare_classic_halt(pcs, cuid)) {\r
+//                     if (MF_DBGLEVEL >= 1)   Dbprintf("ChkKeys: Halt error");\r
+//             }\r
+\r
+               // Iceman: use piwi's faster nonce collecting part in hardnested.\r
+               if (!have_uid) { // need a full select cycle to get the uid first\r
+                       iso14a_card_select_t card_info;\r
+                       if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {\r
+                               if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");\r
+                               --i; // try same key once again\r
+                               continue;\r
+                       }\r
+                       switch (card_info.uidlen) {\r
+                               case 4 : cascade_levels = 1; break;\r
+                               case 7 : cascade_levels = 2; break;\r
+                               case 10: cascade_levels = 3; break;\r
+                               default: break;\r
+                       }\r
+                       have_uid = true;\r
+               } else { // no need for anticollision. We can directly select the card\r
+                       if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {\r
+                               if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card (UID)");\r
+                               --i; // try same key once again\r
+                               continue;\r
+                       }\r

                }\r
 \r
                }\r
 \r

-               if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
-                       if (OLD_MF_DBGLEVEL >= 1)       Dbprintf("ChkKeys: Can't select card");\r
-                       break;\r
-               };\r
-\r

                ui64Key = bytes_to_num(datain + i * 6, 6);\r
                if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r
                ui64Key = bytes_to_num(datain + i * 6, 6);\r
                if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {\r

+                       uint8_t dummy_answer = 0;\r
+                       ReaderTransmit(&dummy_answer, 1, NULL);\r
+                       timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;\r
+\r
+                       // wait for the card to become ready again\r
+                       while(GetCountSspClk() < timeout);\r

                        continue;\r
                        continue;\r

-               };\r
-               \r
+               }\r
+\r

                isOK = 1;\r
                break;\r
        }\r
                isOK = 1;\r
                break;\r
        }\r

-       \r
-       //  ----------------------------- crypto1 destroy\r
-       crypto1_destroy(pcs);\r
-       \r
+\r

        LED_B_ON();\r
     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);\r
        LED_B_OFF();\r
        LED_B_ON();\r
     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);\r
        LED_B_OFF();\r


@@ -719,12 +1043,12 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        LEDsoff();\r
 \r
        // restore debug level\r
        LEDsoff();\r
 \r
        // restore debug level\r

-       MF_DBGLEVEL = OLD_MF_DBGLEVEL;  \r
+       MF_DBGLEVEL = OLD_MF_DBGLEVEL;\r

 }\r
 \r
 //-----------------------------------------------------------------------------\r
 // MIFARE commands set debug level\r
 }\r
 \r
 //-----------------------------------------------------------------------------\r
 // MIFARE commands set debug level\r

-// \r
+//\r

 //-----------------------------------------------------------------------------\r
 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        MF_DBGLEVEL = arg0;\r
 //-----------------------------------------------------------------------------\r
 void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        MF_DBGLEVEL = arg0;\r


@@ -733,17 +1057,24 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 \r
 //-----------------------------------------------------------------------------\r
 // Work with emulator memory\r
 \r
 //-----------------------------------------------------------------------------\r
 // Work with emulator memory\r

-// \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
 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        emlClearMem();\r
 }\r
 \r
 void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r

+       FpgaDownloadAndGo(FPGA_BITSTREAM_HF);\r

        emlSetMem(datain, arg0, arg1); // data, block num, blocks count\r
 }\r
 \r
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        emlSetMem(datain, arg0, arg1); // data, block num, blocks count\r
 }\r
 \r
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\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
        byte_t buf[USB_CMD_DATA_SIZE];\r
        emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)\r
 \r


@@ -754,7 +1085,7 @@ void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
 \r
 //-----------------------------------------------------------------------------\r
 // Load a card into the emulator memory\r
 \r
 //-----------------------------------------------------------------------------\r
 // Load a card into the emulator memory\r

-// \r
+//\r

 //-----------------------------------------------------------------------------\r
 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        uint8_t numSectors = arg0;\r
 //-----------------------------------------------------------------------------\r
 void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
        uint8_t numSectors = arg0;\r


@@ -770,23 +1101,21 @@ 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

-       \r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+\r
+       clear_trace();\r
+       set_tracing(false);\r
+\r

        bool isOK = true;\r
 \r
        bool isOK = true;\r
 \r

-       if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
+       if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                isOK = false;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
        }\r
                isOK = false;\r
                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
        }\r

-               \r
+\r

        for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {\r
                ui64Key = emlGetKey(sectorNo, keyType);\r
                if (sectorNo == 0){\r
        for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {\r
                ui64Key = emlGetKey(sectorNo, keyType);\r
                if (sectorNo == 0){\r


@@ -802,7 +1131,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
                                break;\r
                        }\r
                }\r
                                break;\r
                        }\r
                }\r

-               \r
+\r

                for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {\r
                                isOK = false;\r
                for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {\r
                                isOK = false;\r


@@ -831,7 +1160,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 \r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r

-       \r
+\r

        if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");\r
 \r
 }\r
        if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");\r
 \r
 }\r


@@ -839,10 +1168,10 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 \r
 //-----------------------------------------------------------------------------\r
 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)\r
 \r
 //-----------------------------------------------------------------------------\r
 // Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)\r

-// \r
+//\r

 //-----------------------------------------------------------------------------\r
 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
 //-----------------------------------------------------------------------------\r
 void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r

-  \r
+\r

   // params\r
        uint8_t needWipe = arg0;\r
        // bit 0 - need get UID\r
   // params\r
        uint8_t needWipe = arg0;\r
        // bit 0 - need get UID\r


@@ -850,51 +1179,54 @@ void MifareCSetBlock(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 6 - gen1b backdoor type\r

        uint8_t workFlags = arg1;\r
        uint8_t blockNo = arg2;\r
        uint8_t workFlags = arg1;\r
        uint8_t blockNo = arg2;\r

-       \r
+\r

        // card commands\r
        // card commands\r

-       uint8_t wupC1[]       = { 0x40 }; \r
-       uint8_t wupC2[]       = { 0x43 }; \r
-       uint8_t wipeC[]       = { 0x41 }; \r
-       \r
+       uint8_t wupC1[]       = { 0x40 };\r
+       uint8_t wupC2[]       = { 0x43 };\r
+       uint8_t wipeC[]       = { 0x41 };\r
+\r

        // variables\r
        byte_t isOK = 0;\r
        uint8_t uid[10] = {0x00};\r
        uint8_t d_block[18] = {0x00};\r
        uint32_t cuid;\r
        // variables\r
        byte_t isOK = 0;\r
        uint8_t uid[10] = {0x00};\r
        uint8_t d_block[18] = {0x00};\r
        uint32_t cuid;\r

-       \r
-       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r

 \r
        // reset FPGA and LED\r
        if (workFlags & 0x08) {\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
 \r
        // reset FPGA and LED\r
        if (workFlags & 0x08) {\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r

-       \r
-               iso14a_clear_trace();\r
-               iso14a_set_tracing(TRUE);\r

                iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
                iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r

+\r
+               clear_trace();\r
+               set_tracing(true);\r

        }\r
 \r
        while (true) {\r
 \r
                // get UID from chip\r
                if (workFlags & 0x01) {\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(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {\r

                                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                                break;\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");\r
                                break;\r

-                       };\r
+                               };\r

 \r
 \r

-                       if(mifare_classic_halt(NULL, cuid)) {\r
-                               if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                               break;\r
-                       };\r
+                               if(mifare_classic_halt(NULL, cuid)) {\r
+                                       if (MF_DBGLEVEL > 2)    Dbprintf("Halt error");\r
+                                       // Continue, some magic tags misbehavies and send an answer to it.\r
+          // break;\r
+                               };\r

                };\r
                };\r

-       \r
+\r

                // reset chip\r
                // reset chip\r

-               if (needWipe){\r
+               // Wipe command don't work with gen1b\r
+               if (needWipe && !(workFlags & 0x40)){\r

                        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r
                        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r


@@ -908,51 +1240,61 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
                        };\r
 \r
                        if(mifare_classic_halt(NULL, cuid)) {\r
                        };\r
 \r
                        if(mifare_classic_halt(NULL, cuid)) {\r

-                               if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                               break;\r
+                               if (MF_DBGLEVEL > 2)    Dbprintf("Halt error");\r
+                               // Continue, some magic tags misbehavies and send an answer to it.\r
+                               // break;\r

                        };\r
                        };\r

-               };      \r
+               };\r

 \r
                // write block\r
                if (workFlags & 0x02) {\r
                        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
 \r
                // write block\r
                if (workFlags & 0x02) {\r
                        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r

-                       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
-                               if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r
-                               break;\r
-                       };\r

 \r
 \r

-                       ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
-                       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
-                               if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
-                               break;\r
-                       };\r
+                       // gen1b magic tag : do no issue wupC2 and don't expect 0x0a response after SELECT_UID (after getting UID from chip in 'hf mf csetuid' command)\r
+                       if (!(workFlags & 0x40)) {\r
+\r
+                               if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
+                                       if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r
+                                       break;\r
+                               };\r
+\r
+                               ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
+                               if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
+                                       if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
+                                       break;\r
+                               };\r
+                       }\r

                }\r
 \r
                if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");\r
                        break;\r
                };\r
                }\r
 \r
                if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("write block send command error");\r
                        break;\r
                };\r

-       \r
+\r

                memcpy(d_block, datain, 16);\r
                AppendCrc14443a(d_block, 16);\r
                memcpy(d_block, datain, 16);\r
                AppendCrc14443a(d_block, 16);\r

-       \r
+\r

                ReaderTransmit(d_block, sizeof(d_block), NULL);\r
                if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");\r
                        break;\r
                ReaderTransmit(d_block, sizeof(d_block), NULL);\r
                if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");\r
                        break;\r

-               };      \r
-       \r
+               };\r
+\r

                if (workFlags & 0x04) {\r
                if (workFlags & 0x04) {\r

-                       if (mifare_classic_halt(NULL, cuid)) {\r
-                               if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                               break;\r
-                       };\r
+                       // do no issue halt command for gen1b magic tag (#db# halt error. response len: 1)\r
+                       if (!(workFlags & 0x40)) {\r
+                               if (mifare_classic_halt(NULL, cuid)) {\r
+                                       if (MF_DBGLEVEL > 2)    Dbprintf("Halt error");\r
+                                       // Continue, some magic tags misbehavies and send an answer to it.\r
+                                       // break;\r
+                               }\r
+                       }\r

                }\r
                }\r

-               \r
+\r

                isOK = 1;\r
                break;\r
        }\r
                isOK = 1;\r
                break;\r
        }\r

-       \r
+\r

        LED_B_ON();\r
        cmd_send(CMD_ACK,isOK,0,0,uid,4);\r
        LED_B_OFF();\r
        LED_B_ON();\r
        cmd_send(CMD_ACK,isOK,0,0,uid,4);\r
        LED_B_OFF();\r


@@ -965,35 +1307,37 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 \r
 \r
 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
 \r
 \r
 void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r

-  \r
-  // params\r
+\r
+       // params\r

        // bit 1 - need wupC\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 1 - need wupC\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
+       // bit 6 - gen1b backdoor type\r

        uint8_t workFlags = arg0;\r
        uint8_t blockNo = arg2;\r
        uint8_t workFlags = arg0;\r
        uint8_t blockNo = arg2;\r

-       \r
+\r

        // card commands\r
        // card commands\r

-       uint8_t wupC1[]       = { 0x40 }; \r
-       uint8_t wupC2[]       = { 0x43 }; \r
-       \r
+       uint8_t wupC1[]       = { 0x40 };\r
+       uint8_t wupC2[]       = { 0x43 };\r
+\r

        // variables\r
        byte_t isOK = 0;\r
        uint8_t data[18] = {0x00};\r
        uint32_t cuid = 0;\r
        // variables\r
        byte_t isOK = 0;\r
        uint8_t data[18] = {0x00};\r
        uint32_t cuid = 0;\r

-       \r
-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
-       \r
+\r
+       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
+       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+\r

        if (workFlags & 0x08) {\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r
        if (workFlags & 0x08) {\r
                LED_A_ON();\r
                LED_B_OFF();\r
                LED_C_OFF();\r

-       \r
-               iso14a_clear_trace();\r
-               iso14a_set_tracing(TRUE);\r

                iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
                iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r

+\r
+               clear_trace();\r
+               set_tracing(true);\r

        }\r
 \r
        while (true) {\r
        }\r
 \r
        while (true) {\r


@@ -1002,14 +1346,16 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r
                                break;\r
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC1 error");\r
                                break;\r

-                       };\r
-\r
+               };\r
+               // do no issue for gen1b magic tag\r
+               if (!(workFlags & 0x40)) {\r

                        ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
                                break;\r
                        };\r
                }\r
                        ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
                        if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
                                break;\r
                        };\r
                }\r

+       }\r

 \r
                // read block\r
                if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {\r
 \r
                // read block\r
                if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {\r


@@ -1017,20 +1363,29 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
                        break;\r
                };\r
                memcpy(data, receivedAnswer, 18);\r
                        break;\r
                };\r
                memcpy(data, receivedAnswer, 18);\r

-               \r
+\r

                if (workFlags & 0x04) {\r
                if (workFlags & 0x04) {\r

-                       if (mifare_classic_halt(NULL, cuid)) {\r
-                               if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
-                               break;\r
-                       };\r
+                       // do no issue halt command for gen1b magic tag (#db# halt error. response len: 1)\r
+                       if (!(workFlags & 0x40)) {\r
+                               if (mifare_classic_halt(NULL, cuid)) {\r
+                                       if (MF_DBGLEVEL > 1)    Dbprintf("Halt error");\r
+                                       // Continue, some magic tags misbehavies and send an answer to it.\r
+                                       //              break;\r
+                               }\r
+                       }\r

                }\r
                }\r

-               \r
+\r

                isOK = 1;\r
                break;\r
        }\r
                isOK = 1;\r
                break;\r
        }\r

-       \r
+\r

        LED_B_ON();\r
        LED_B_ON();\r

-       cmd_send(CMD_ACK,isOK,0,0,data,18);\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
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r


@@ -1040,34 +1395,98 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 }\r
 \r
 void MifareCIdent(){\r
 }\r
 \r
 void MifareCIdent(){\r

-  \r
+\r

        // card commands\r
        // card commands\r

-       uint8_t wupC1[]       = { 0x40 }; \r
-       uint8_t wupC2[]       = { 0x43 }; \r
-       \r
+       uint8_t wupC1[]       = { 0x40 };\r
+       uint8_t wupC2[]       = { 0x43 };\r
+\r

        // variables\r
        // variables\r

-       byte_t isOK = 1;\r
-       \r
-       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
-       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\r
+       byte_t isOK = 0;\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
 \r
        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r

-       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
-               isOK = 0;\r
-       };\r
+       if(ReaderReceive(receivedAnswer, receivedAnswerPar) && (receivedAnswer[0] == 0x0a)) {\r
+               isOK = 2;\r

 \r
 \r

-       ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
-       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
-               isOK = 0;\r
+               ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
+               if(ReaderReceive(receivedAnswer, receivedAnswerPar) && (receivedAnswer[0] == 0x0a)) {\r
+                       isOK = 1;\r
+               };\r

        };\r
 \r
        };\r
 \r

-       if (mifare_classic_halt(NULL, 0)) {\r
-               isOK = 0;\r
-       };\r
+       // From iceman1001: removed the if,  since some magic tags misbehavies and send an answer to it.\r
+       mifare_classic_halt(NULL, 0);\r

 \r
        cmd_send(CMD_ACK,isOK,0,0,0,0);\r
 }\r
 \r
 \r
        cmd_send(CMD_ACK,isOK,0,0,0,0);\r
 }\r
 \r

-                       //\r
+//\r

 // DESFIRE\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;\r
+\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
+       clear_trace();\r
+\r
+       int len = iso14443a_select_card(uid, NULL, &cuid, true, 0);\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
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");\r
+    cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));\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 isOK = 0;\r
+       byte_t dataout[12] = {0x00};\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
+}\r
+\r
+void OnSuccess(){\r
+       pcb_blocknum = 0;\r
+       ReaderTransmit(deselect_cmd, 3 , NULL);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
+}\r
+\r
+void OnError(uint8_t reason){\r
+       pcb_blocknum = 0;\r
+       ReaderTransmit(deselect_cmd, 3 , NULL);\r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       cmd_send(CMD_ACK,0,reason,0,0,0);\r
+       LEDsoff();\r
+}\r