clean up mfu device side code

[proxmark3-svn] / armsrc / mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 2f84797b92e015384d8b2755410bd4c553431efd..c706e78a4a5d7f022a193e5c6d3a34a1dc1ae192 100644 (file)
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -65,73 +65,74 @@ uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
        return bt;\r
 }\r
 \r
-// send commands\r
+// send 2 byte commands\r
 int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
        return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, answer_parity, timing);\r
 }\r
 \r
-int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
+// send X byte basic commands\r
+int mifare_sendcmd(uint8_t cmd, uint8_t* data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
-       uint8_t dcmd[8];\r
-    dcmd[0] = cmd;\r
-    dcmd[1] = data[0];\r
-       dcmd[2] = data[1];\r
-       dcmd[3] = data[2];\r
-       dcmd[4] = data[3];\r
-       dcmd[5] = data[4];\r
-       AppendCrc14443a(dcmd, 6);\r
-       ReaderTransmit(dcmd, sizeof(dcmd), NULL);\r
+       uint8_t dcmd[data_size+3];\r
+       dcmd[0] = cmd;\r
+       memcpy(dcmd+1,data,data_size);\r
+       AppendCrc14443a(dcmd, data_size+1);\r
+       ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
        int len = ReaderReceive(answer, answer_parity);\r
        if(!len) {\r
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");\r
-                return 2;\r
-    }\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("%02X Cmd failed. Card timeout.", cmd);\r
+                       len = ReaderReceive(answer,answer_parity);\r
+               //return 0;\r
+       }\r
        return len;\r
 }\r
 \r
+/*\r
 int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
-    uint8_t dcmd[19];\r
+       uint8_t dcmd[19];\r
        int len; \r
-    dcmd[0] = cmd;\r
-    memcpy(dcmd+1,data,16);\r
+       dcmd[0] = cmd;\r
+       memcpy(dcmd+1,data,16);\r
        AppendCrc14443a(dcmd, 17);\r
        \r
        ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
        len = ReaderReceive(answer, answer_parity);\r
        if(!len) {\r
-        if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
-        len = ReaderReceive(answer,answer_parity);\r
-    }\r
-    if(len==1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
+                       len = ReaderReceive(answer,answer_parity);\r
+       }\r
+       if(len==1) {\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");\r
                return 1;\r
-        }\r
+       }\r
        return len;\r
 }\r
 \r
 int mifare_sendcmd_short_mfuev1auth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
-    uint8_t dcmd[7];\r
+       uint8_t dcmd[7];\r
        int len; \r
-    dcmd[0] = cmd;\r
-    memcpy(dcmd+1,data,4);\r
+       dcmd[0] = cmd;\r
+       memcpy(dcmd+1,data,4);\r
        AppendCrc14443a(dcmd, 5);\r
-       \r
+\r
        ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
        len = ReaderReceive(answer, answer_parity);\r
        if(!len) {\r
-        if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
-        len = ReaderReceive(answer,answer_parity);\r
-    }\r
-    if(len==1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
+               len = ReaderReceive(answer,answer_parity);\r
+       }\r
+       if(len==1) {\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");\r
                return 1;\r
-        }\r
+       }\r
        return len;\r
 }\r
+*/\r
 \r
+// send 2 byte commands\r
 int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
        uint8_t dcmd[4], ecmd[4];\r
@@ -319,7 +320,8 @@ int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){
        memcpy(key, keybytes, 4);\r
 \r
        Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
-       len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);\r
+       len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
+       //len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);\r
        if (len != 4) {\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
                return 0;\r
@@ -380,8 +382,8 @@ int mifare_ultra_auth(uint8_t *keybytes){
 \r
        // encrypt    out, in, length, key, iv\r
        tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
-\r
-       len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
+       //len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
+       len = mifare_sendcmd(0xAF, rnd_ab, sizeof(rnd_ab), resp, respPar, NULL);\r
        if (len != 11) {\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
                return 0;\r
@@ -425,6 +427,7 @@ int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)
        uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
        uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
        \r
+\r
        len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
        if (len == 1) {\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
@@ -493,7 +496,8 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
        return 0;\r
 }\r
 \r
-int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData) \r
+/* // command not needed, but left for future testing\r
+int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData) \r
 {\r
        uint16_t len;\r
        uint8_t par[3] = {0};  // enough for 18 parity bits\r
@@ -501,7 +505,6 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)
        uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
        uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
 \r
-       // command MIFARE_CLASSIC_WRITEBLOCK\r
        len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);\r
 \r
        if ((len != 1) || (receivedAnswer[0] != 0x0A)) {   //  0x0a - ACK\r
@@ -524,20 +527,21 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)
        }\r
        return 0;\r
 }\r
+*/\r
 \r
-int mifare_ultra_special_writeblock(uint8_t blockNo, uint8_t *blockData)\r
+int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)\r
 {\r
        uint16_t len;\r
-       uint8_t d_block[8] = {0x00};\r
+       uint8_t d_block[5] = {0x00};\r
        uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
        uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
 \r
        // command MIFARE_CLASSIC_WRITEBLOCK\r
        d_block[0]= blockNo;\r
        memcpy(d_block+1,blockData,4);\r
-       AppendCrc14443a(d_block, 6);\r
+       //AppendCrc14443a(d_block, 6);\r
 \r
-       len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer, receivedAnswerPar, NULL);\r
+       len = mifare_sendcmd(0xA2, d_block, sizeof(d_block), receivedAnswer, receivedAnswerPar, NULL);\r
 \r
        if (receivedAnswer[0] != 0x0A) {   //  0x0a - ACK\r
                if (MF_DBGLEVEL >= MF_DBG_ERROR)\r