]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/mifarecmd.c
Generic tracing pt.3 : reworking how iso14443b-traces are stored in ARM-memory
[proxmark3-svn] / armsrc / mifarecmd.c
index 42dee56ec96ae1a2cdf940a18b00e4ad33b9004c..ecd8728db9c4b9dcf3168b3207665cd1bf676597 100644 (file)
@@ -2,6 +2,9 @@
 // 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
@@ -12,6 +15,7 @@
 \r
 #include "mifarecmd.h"\r
 #include "apps.h"\r
+#include "util.h"\r
 \r
 //-----------------------------------------------------------------------------\r
 // Select, Authenticate, Read a MIFARE tag. \r
@@ -36,8 +40,6 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 \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
@@ -81,65 +83,48 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
-//  iso14a_set_tracing(TRUE);\r
-\r
 }\r
 \r
 void MifareUReadBlock(uint8_t arg0,uint8_t *datain)\r
 {\r
-    // params\r
        uint8_t blockNo = arg0;\r
-       \r
-       // variables\r
-       byte_t isOK = 0;\r
-       byte_t dataoutbuf[16];\r
-       uint8_t uid[10];\r
+       byte_t dataout[16] = {0x00};\r
+       uint8_t uid[10] = {0x00};\r
        uint32_t cuid;\r
     \r
-       // clear trace\r
-       iso14a_clear_trace();\r
-       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\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
+       iso14a_clear_trace();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\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_ultra_readblock(cuid, blockNo, dataoutbuf)) {\r
-            if (MF_DBGLEVEL >= 1)      Dbprintf("Read block error");\r
-                       break;\r
+       len = mifare_ultra_readblock(cuid, blockNo, dataout);\r
+       if(len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)        Dbprintf("Read block error");\r
+               //OnError(2);\r
+               return;\r
                };\r
         \r
-               if(mifare_ultra_halt(cuid)) {\r
-            if (MF_DBGLEVEL >= 1)      Dbprintf("Halt error");\r
-                       break;\r
+       len = mifare_ultra_halt(cuid);\r
+       if(len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)        Dbprintf("Halt error");\r
+               //OnError(3);\r
+               return;\r
                };\r
                \r
-               isOK = 1;\r
-               break;\r
-       }\r
-       \r
-       if (MF_DBGLEVEL >= 2)   DbpString("READ BLOCK FINISHED");\r
-    \r
-       // add trace trailer\r
-       memset(uid, 0x44, 4);\r
-       LogTrace(uid, 4, 0, 0, TRUE);\r
-       LED_B_ON();\r
-        cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);\r
-       LED_B_OFF();\r
-    \r
-    \r
-    // Thats it...\r
+    cmd_send(CMD_ACK,1,0,0,dataout,16);\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
@@ -153,7 +138,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
        ui64Key = bytes_to_num(datain, 6);\r
        \r
        // variables\r
-       byte_t isOK;\r
+       byte_t isOK = 0;\r
        byte_t dataoutbuf[16 * 16];\r
        uint8_t uid[10];\r
        uint32_t cuid;\r
@@ -163,7 +148,6 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 \r
        // clear trace\r
        iso14a_clear_trace();\r
-//     iso14a_set_tracing(false);\r
 \r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
@@ -195,7 +179,6 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");\r
        }\r
 \r
-       \r
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        \r
@@ -208,61 +191,72 @@ 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
-//  iso14a_set_tracing(TRUE);\r
 }\r
 \r
-\r
-void MifareUReadCard(uint8_t arg0, uint8_t *datain)\r
+void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)\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
-\r
-               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
-\r
-        LED_A_ON();\r
-        LED_B_OFF();\r
-        LED_C_OFF();\r
+       int Pages = arg1;\r
+       int count_Pages = 0;\r
+       byte_t dataout[176] = {0x00};;\r
+       uint8_t uid[10] = {0x00};\r
+       uint32_t cuid;\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
+       LED_A_ON();\r
+       LED_B_OFF();\r
+       LED_C_OFF();\r
 \r
-                isOK = 1;\r
-                break;\r
-        }\r
-        \r
-        if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");\r
+       if (MF_DBGLEVEL >= MF_DBG_ALL) \r
+               Dbprintf("Pages %d",Pages);\r
+       \r
+       iso14a_clear_trace();\r
+       iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
-        LED_B_ON();\r
-               cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);\r
-        LED_B_OFF();\r
+       int len = iso14443a_select_card(uid, NULL, &cuid);\r
+       \r
+       if (!len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Can't select card");\r
+               //OnError(1);\r
+               return;\r
+       }\r
+       \r
+       for (int i = 0; i < Pages; i++){\r
+       \r
+               len = mifare_ultra_readblock(cuid, sectorNo * 4 + i, dataout + 4 * i);\r
+               \r
+               if (len) {\r
+                       if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                               Dbprintf("Read block %d error",i);\r
+                       //OnError(2);\r
+                       return;\r
+               } else {\r
+                       count_Pages++;\r
+               }\r
+       }\r
+               \r
+       len = mifare_ultra_halt(cuid);\r
+       if (len) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
+                       Dbprintf("Halt error");\r
+               //OnError(3);\r
+               return;\r
+       }\r
+       \r
+       if (MF_DBGLEVEL >= MF_DBG_ALL) {\r
+               Dbprintf("Pages read %d", count_Pages);\r
+       }\r
 \r
-        // Thats it...\r
-        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-        LEDsoff();\r
+       len = 16*4; //64 bytes\r
+       \r
+       // Read a UL-C\r
+       if (Pages == 44 && count_Pages > 16) \r
+               len = 176;\r
 \r
+       cmd_send(CMD_ACK, 1, 0, 0, dataout, len);       \r
+       FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
+       LEDsoff();\r
 }\r
 \r
 \r
@@ -291,7 +285,6 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 \r
        // clear trace\r
        iso14a_clear_trace();\r
-//  iso14a_set_tracing(false);\r
 \r
        iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
 \r
@@ -337,29 +330,22 @@ 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
-//  iso14a_set_tracing(TRUE);\r
-\r
 }\r
 \r
-\r
 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)\r
 {\r
         // params\r
         uint8_t blockNo = arg0;\r
-        byte_t blockdata[16];\r
+       byte_t blockdata[16] = {0x00};\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
+       uint8_t uid[10] = {0x00};\r
         uint32_t cuid;\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
@@ -388,35 +374,25 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
         \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
 \r
-\r
 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)\r
 {\r
        // params\r
        uint8_t blockNo = arg0;\r
-       byte_t blockdata[4];\r
+       byte_t blockdata[4] = {0x00};\r
        \r
        memcpy(blockdata, datain,4);\r
 \r
        // variables\r
        byte_t isOK = 0;\r
-       uint8_t uid[10];\r
+       uint8_t uid[10] = {0x00};\r
        uint32_t cuid;\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
@@ -445,21 +421,13 @@ void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 \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
 }\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, byte_t * parity) {\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
@@ -486,7 +454,8 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        uint16_t davg;\r
        static uint16_t dmin, dmax;\r
        uint8_t uid[10];\r
-       uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;\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
        uint8_t par_array[4];\r
@@ -494,7 +463,7 @@ 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
-       uint8_t* receivedAnswer = mifare_get_bigbufptr();\r
+       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
 \r
        uint32_t auth1_time, auth2_time;\r
        static uint16_t delta_time;\r
@@ -512,6 +481,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        // statistics on nonce distance\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
@@ -610,19 +580,18 @@ 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
-                       len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par, &auth2_time);\r
+                       len = mifare_sendcmd_shortex(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
                \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);\r
+                       if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);\r
                        \r
                        // Parity validity check\r
                        for (j = 0; j < 4; j++) {\r
-                               par_array[j] = (oddparity(receivedAnswer[j]) != ((par & 0x08) >> 3));\r
-                               par = par << 1;\r
+                               par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));\r
                        }\r
                        \r
                        ncount = 0;\r
@@ -657,10 +626,6 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
        //  ----------------------------- crypto1 destroy\r
        crypto1_destroy(pcs);\r
        \r
-       // add trace trailer\r
-       memset(uid, 0x44, 4);\r
-       LogTrace(uid, 4, 0, 0, TRUE);\r
-\r
        byte_t buf[4 + 4 * 4];\r
        memcpy(buf, &cuid, 4);\r
        memcpy(buf+4, &target_nt[0], 4);\r
@@ -740,7 +705,6 @@ 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
-  // Thats it...\r
        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
        LEDsoff();\r
 \r
@@ -757,7 +721,6 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        Dbprintf("Debug level: %d", MF_DBGLEVEL);\r
 }\r
 \r
-\r
 //-----------------------------------------------------------------------------\r
 // Work with emulator memory\r
 // \r
@@ -766,23 +729,19 @@ void MifareEMemClr(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
        emlClearMem();\r
 }\r
 \r
-\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
 }\r
 \r
-\r
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){\r
-\r
-       byte_t buf[48];\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
-       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
-\r
 //-----------------------------------------------------------------------------\r
 // Load a card into the emulator memory\r
 // \r
@@ -891,31 +850,26 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \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
-       memset(uid, 0x00, 10);\r
-       uint8_t* receivedAnswer = mifare_get_bigbufptr();\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
+       uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();\r
+       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_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
-               SpinDelay(300);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
-               SpinDelay(100);\r
-               FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);\r
+               iso14a_clear_trace();\r
+               iso14a_set_tracing(TRUE);\r
+               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
        }\r
 \r
        while (true) {\r
+\r
                // get UID from chip\r
                if (workFlags & 0x01) {\r
                        if(!iso14443a_select_card(uid, NULL, &cuid)) {\r
@@ -931,14 +885,14 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \r
                // reset chip\r
                if (needWipe){\r
-      ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
-                       if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {\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
                        ReaderTransmit(wipeC, sizeof(wipeC), NULL);\r
-                       if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {\r
+                       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wipeC error");\r
                                break;\r
                        };\r
@@ -951,20 +905,20 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 \r
                // write block\r
                if (workFlags & 0x02) {\r
-      ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
-                       if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {\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
                        ReaderTransmit(wupC2, sizeof(wupC2), NULL);\r
-                       if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {\r
+                       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
                                break;\r
                        };\r
                }\r
 \r
-               if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {\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
@@ -973,7 +927,7 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
                AppendCrc14443a(d_block, 16);\r
        \r
                ReaderTransmit(d_block, sizeof(d_block), NULL);\r
-               if ((ReaderReceive(receivedAnswer) != 1) || (receivedAnswer[0] != 0x0a)) {\r
+               if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("write block send data error");\r
                        break;\r
                };      \r
@@ -994,7 +948,6 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
-               // Thats it...\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\r
        }\r
@@ -1017,46 +970,39 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        \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
-       memset(data, 0x00, 18);\r
-       uint8_t* receivedAnswer = mifare_get_bigbufptr();\r
+       uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();\r
+       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;\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
        \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
+               iso14a_clear_trace();\r
+               iso14a_set_tracing(TRUE);\r
+               iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);\r
        }\r
 \r
        while (true) {\r
                if (workFlags & 0x02) {\r
                        ReaderTransmitBitsPar(wupC1,7,0, NULL);\r
-                       if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {\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) || (receivedAnswer[0] != 0x0a)) {\r
+                       if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {\r
                                if (MF_DBGLEVEL >= 1)   Dbprintf("wupC2 error");\r
                                break;\r
                        };\r
                }\r
 \r
                // read block\r
-               if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, NULL) != 18)) {\r
+               if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {\r
                        if (MF_DBGLEVEL >= 1)   Dbprintf("read block send command error");\r
                        break;\r
                };\r
@@ -1078,9 +1024,40 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
        LED_B_OFF();\r
 \r
        if ((workFlags & 0x10) || (!isOK)) {\r
-               // Thats it...\r
                FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);\r
                LEDsoff();\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 = get_bigbufptr_recvrespbuf();\r
+       uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_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
+                       //\r
+// DESFIRE\r
+//\r
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