fix command-line issue generating core dump on OSX

[proxmark3-svn] / armsrc / mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 59dafedc57e5661c693d72f13b8799e7620642cf..c5843fd7474decf2db8adbf9c9be7345f2827fbb 100644 (file)
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -1,12 +1,12 @@
 //-----------------------------------------------------------------------------\r
 // Merlok, May 2011\r
 //-----------------------------------------------------------------------------\r
 // Merlok, May 2011\r

-// Many authors, that makes it possible\r
+// Many authors, whom made it possible\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
 // the license.\r
 //-----------------------------------------------------------------------------\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
 // the license.\r
 //-----------------------------------------------------------------------------\r

-// code for work with mifare cards.\r
+// Work with mifare cards.\r

 //-----------------------------------------------------------------------------\r
 \r
 #include "proxmark3.h"\r
 //-----------------------------------------------------------------------------\r
 \r
 #include "proxmark3.h"\r


@@ -19,11 +19,70 @@
 #include "crapto1.h"\r
 #include "mifareutil.h"\r
 \r
 #include "crapto1.h"\r
 #include "mifareutil.h"\r
 \r

+int MF_DBGLEVEL = MF_DBG_ALL;\r
+\r
+// memory management\r

 uint8_t* mifare_get_bigbufptr(void) {\r
 uint8_t* mifare_get_bigbufptr(void) {\r

-       return (((uint8_t *)BigBuf) + 3560);    // was 3560 - tied to other size changes\r
+       return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET);      // was 3560 - tied to other size changes\r
+}\r
+uint8_t* eml_get_bigbufptr_sendbuf(void) {\r
+       return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); \r
+}\r
+uint8_t* eml_get_bigbufptr_recbuf(void) {\r
+       return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET);\r
+}\r
+uint8_t* eml_get_bigbufptr_cardmem(void) {\r
+       return (((uint8_t *)BigBuf) + CARD_MEMORY);\r
+}\r
+\r
+// crypto1 helpers\r
+void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){\r
+       uint8_t bt = 0;\r
+       int i;\r
+       \r
+       if (len != 1) {\r
+               for (i = 0; i < len; i++)\r
+                       data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
+       } else {\r
+               bt = 0;\r
+               for (i = 0; i < 4; i++)\r
+                       bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i;\r
+                               \r
+               data[0] = bt;\r
+       }\r
+       return;\r
+}\r
+\r
+void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, int len, uint32_t *par) {\r
+       uint8_t bt = 0;\r
+       int i;\r
+       uint32_t mltpl = 1 << (len - 1); // for len=18 it=0x20000\r
+       *par = 0;\r
+       for (i = 0; i < len; i++) {\r
+               bt = data[i];\r
+               data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
+               *par = (*par >> 1) | ( ((filter(pcs->odd) ^ oddparity(bt)) & 0x01) * mltpl );\r
+       }       \r
+       return;\r

 }\r
 \r
 }\r
 \r

+uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {\r
+       uint8_t bt = 0;\r
+       int i;\r
+\r
+       for (i = 0; i < 4; i++)\r
+               bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i;\r
+               \r
+       return bt;\r
+}\r
+\r
+// send commands\r

 int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer)\r
 int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer)\r

+{\r
+       return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, NULL);\r
+}\r
+\r
+int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr)\r

 {\r
        uint8_t dcmd[4], ecmd[4];\r
        uint32_t pos, par, res;\r
 {\r
        uint8_t dcmd[4], ecmd[4];\r
        uint32_t pos, par, res;\r


@@ -48,7 +107,9 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
                ReaderTransmit(dcmd, sizeof(dcmd));\r
        }\r
 \r
                ReaderTransmit(dcmd, sizeof(dcmd));\r
        }\r
 \r

-       int len = ReaderReceive(answer);\r
+       int len = ReaderReceivePar(answer, &par);\r
+       \r
+       if (parptr) *parptr = par;\r

 \r
        if (crypted == CRYPT_ALL) {\r
                if (len == 1) {\r
 \r
        if (crypted == CRYPT_ALL) {\r
                if (len == 1) {\r


@@ -69,7 +130,13 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
        return len;\r
 }\r
 \r
        return len;\r
 }\r
 \r

+// mifare commands\r

 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested) \r
 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested) \r

+{\r
+       return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL);\r
+}\r
+\r
+int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested, uint32_t * ntptr) \r

 {\r
        // variables\r
        int len;        \r
 {\r
        // variables\r
        int len;        \r


@@ -84,7 +151,7 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
 \r
        // Transmit MIFARE_CLASSIC_AUTH\r
        len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer);\r
 \r
        // Transmit MIFARE_CLASSIC_AUTH\r
        len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer);\r

-//     Dbprintf("rand nonce len: %x", len);  \r
+  if (MF_DBGLEVEL >= 4)        Dbprintf("rand nonce len: %x", len);  \r

        if (len != 4) return 1;\r
        \r
        ar[0] = 0x55;\r
        if (len != 4) return 1;\r
        \r
        ar[0] = 0x55;\r


@@ -111,7 +178,12 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
        }\r
 \r
        // some statistic\r
        }\r
 \r
        // some statistic\r

-       Dbprintf("auth uid: %08x nt: %08x", uid, nt);  \r
+       if (!ntptr && (MF_DBGLEVEL >= 3))\r
+               Dbprintf("auth uid: %08x nt: %08x", uid, nt);  \r
+       \r
+       // save Nt\r
+       if (ntptr)\r
+               *ntptr = nt;\r

 \r
        par = 0;\r
        // Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r
 \r
        par = 0;\r
        // Generate (encrypted) nr+parity by loading it into the cipher (Nr)\r


@@ -139,7 +211,7 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
        len = ReaderReceive(receivedAnswer);\r
        if (!len)\r
        {\r
        len = ReaderReceive(receivedAnswer);\r
        if (!len)\r
        {\r

-               Dbprintf("Authentication failed. Card timeout.");\r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");\r

                return 2;\r
        }\r
        \r
                return 2;\r
        }\r
        \r


@@ -147,7 +219,7 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
        ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);\r
        \r
        if (ntpp != bytes_to_num(tmp4, 4)) {\r
        ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);\r
        \r
        if (ntpp != bytes_to_num(tmp4, 4)) {\r

-               Dbprintf("Authentication failed. Error card response.");\r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Error card response.");\r

                return 3;\r
        }\r
 \r
                return 3;\r
        }\r
 \r


@@ -165,18 +237,18 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
        // command MIFARE_CLASSIC_READBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer);\r
        if (len == 1) {\r
        // command MIFARE_CLASSIC_READBLOCK\r
        len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer);\r
        if (len == 1) {\r

-               Dbprintf("Cmd Error: %02x", receivedAnswer[0]);  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Error: %02x", receivedAnswer[0]);  \r

                return 1;\r
        }\r
        if (len != 18) {\r
                return 1;\r
        }\r
        if (len != 18) {\r

-               Dbprintf("Cmd Error: card timeout. len: %x", len);  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Error: card timeout. len: %x", len);  \r

                return 2;\r
        }\r
 \r
        memcpy(bt, receivedAnswer + 16, 2);\r
        AppendCrc14443a(receivedAnswer, 16);\r
        if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r
                return 2;\r
        }\r
 \r
        memcpy(bt, receivedAnswer + 16, 2);\r
        AppendCrc14443a(receivedAnswer, 16);\r
        if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {\r

-               Dbprintf("Cmd CRC response error.");  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd CRC response error.");  \r

                return 3;\r
        }\r
        \r
                return 3;\r
        }\r
        \r


@@ -199,7 +271,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
        len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer);\r
 \r
        if ((len != 1) || (receivedAnswer[0] != 0x0A)) {   //  0x0a - ACK\r
        len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer);\r
 \r
        if ((len != 1) || (receivedAnswer[0] != 0x0A)) {   //  0x0a - ACK\r

-               Dbprintf("Cmd Error: %02x", receivedAnswer[0]);  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Error: %02x", receivedAnswer[0]);  \r

                return 1;\r
        }\r
        \r
                return 1;\r
        }\r
        \r


@@ -224,7 +296,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
                res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;\r
 \r
        if ((len != 1) || (res != 0x0A)) {\r
                res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;\r
 \r
        if ((len != 1) || (res != 0x0A)) {\r

-               Dbprintf("Cmd send data2 Error: %02x", res);  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd send data2 Error: %02x", res);  \r

                return 2;\r
        }\r
        \r
                return 2;\r
        }\r
        \r


@@ -241,9 +313,101 @@ int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
 \r
        len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer);\r
        if (len != 0) {\r
 \r
        len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer);\r
        if (len != 0) {\r

-               Dbprintf("halt error. response len: %x", len);  \r
+               if (MF_DBGLEVEL >= 1)   Dbprintf("halt error. response len: %x", len);  \r
+               return 1;\r
+       }\r
+\r
+       return 0;\r
+}\r
+\r
+// work with emulator memory\r
+void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       \r
+       memcpy(emCARD + blockNum * 16, data, blocksCount * 16);\r
+}\r
+\r
+void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       \r
+       memcpy(data, emCARD + blockNum * 16, blocksCount * 16);\r
+}\r
+\r
+void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       \r
+       memcpy(data, emCARD + bytePtr, byteCount);\r
+}\r
+\r
+int emlCheckValBl(int blockNum) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       uint8_t* data = emCARD + blockNum * 16;\r
+\r
+       if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||\r
+                       (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||\r
+                       (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||\r
+                       (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||\r
+                       (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||\r
+                       (data[12] != (data[15] ^ 0xff))\r
+                ) \r
+               return 1;\r
+       return 0;\r
+}\r
+\r
+int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       uint8_t* data = emCARD + blockNum * 16;\r
+       \r
+       if (emlCheckValBl(blockNum)) {\r

                return 1;\r
        }\r
                return 1;\r
        }\r

+       \r
+       memcpy(blReg, data, 4);\r
+       *blBlock = data[12];\r
+       \r
+       return 0;\r
+}\r

 \r
 \r

+int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       uint8_t* data = emCARD + blockNum * 16;\r
+       \r
+       memcpy(data + 0, &blReg, 4);\r
+       memcpy(data + 8, &blReg, 4);\r
+       blReg = blReg ^ 0xffffffff;\r
+       memcpy(data + 4, &blReg, 4);\r
+       \r
+       data[12] = blBlock;\r
+       data[13] = blBlock ^ 0xff;\r
+       data[14] = blBlock;\r
+       data[15] = blBlock ^ 0xff;\r
+       \r

        return 0;\r
 }\r
        return 0;\r
 }\r

+\r
+uint64_t emlGetKey(int sectorNum, int keyType) {\r
+       uint8_t key[6];\r
+       uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+       \r
+       memcpy(key, emCARD + 3 * 16 + sectorNum * 4 * 16 + keyType * 10, 6);\r
+       return bytes_to_num(key, 6);\r
+}\r
+\r
+void emlClearMem(void) {\r
+       int i;\r
+       \r
+       const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};\r
+       const uint8_t empty[] =   {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};\r
+       const uint8_t uid[]   =   {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
+       // fill sectors data\r
+       for(i = 0; i < 16; i++) {\r
+               emlSetMem((uint8_t *)empty,   i * 4 + 0, 1);\r
+               emlSetMem((uint8_t *)empty,   i * 4 + 1, 1);\r
+               emlSetMem((uint8_t *)empty,   i * 4 + 2, 1);\r
+               emlSetMem((uint8_t *)trailer, i * 4 + 3, 1);\r
+       }\r
+\r
+       // uid\r
+       emlSetMem((uint8_t *)uid, 0, 1);\r
+       return;\r
+}\r