]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/mifareutil.c
CHG: minor change initializing array.
[proxmark3-svn] / armsrc / mifareutil.c
index 7c208b84eca056a2fdbea594b360ca87c10d6034..84477a2b046c29da292e3a8675da213c639c4324 100644 (file)
@@ -18,6 +18,7 @@
 #include "iso14443a.h"\r
 #include "crapto1.h"\r
 #include "mifareutil.h"\r
+#include "parity.h"\r
 #include "des.h"\r
 \r
 int MF_DBGLEVEL = MF_DBG_ALL;\r
@@ -50,7 +51,7 @@ void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, u
                data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];\r
                if((i&0x0007) == 0) \r
                        par[i>>3] = 0;\r
-               par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));\r
+               par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));\r
        }       \r
        return;\r
 }\r
@@ -65,74 +66,25 @@ uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
        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, 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
-       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
-{\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
-       int len = ReaderReceive(answer, answer_parity);\r
-       if(!len) {\r
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");\r
-                return 2;\r
-    }\r
-       return len;\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
-       int len; \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("NAK - Authentication failed.");\r
-               return 1;\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
-       int len; \r
+       uint8_t dcmd[data_size+3];\r
     dcmd[0] = cmd;\r
-    memcpy(dcmd+1,data,4);\r
-       AppendCrc14443a(dcmd, 5);\r
-       \r
+       memcpy(dcmd+1,data,data_size);\r
+       AppendCrc14443a(dcmd, data_size+1);\r
        ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
-       len = ReaderReceive(answer, answer_parity);\r
+       int 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
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("%02X Cmd failed. Card timeout.", cmd);\r
+                       len = ReaderReceive(answer,answer_parity);\r
+               //return 0;\r
     }\r
-    if(len==1) {\r
-               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");\r
-               return 1;\r
-        }\r
        return len;\r
 }\r
 \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
+// 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
        uint8_t dcmd[4], ecmd[4];\r
        uint16_t pos, res;\r
@@ -148,7 +100,7 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm
                for (pos = 0; pos < 4; pos++)\r
                {\r
                        ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];\r
-                       par[0] |= (((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) << (7-pos));\r
+                       par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos));\r
                }       \r
 \r
                ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);\r
@@ -193,7 +145,11 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
        uint32_t pos;\r
        uint8_t tmp4[4];\r
        uint8_t par[1] = {0x00};\r
-       byte_t nr[4];\r
+\r
+       // "random" reader nonce:\r
+       byte_t nr[4] = {0x55, 0x41, 0x49, 0x92};\r
+       //byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};\r
+       \r
        uint32_t nt, ntpp; // Supplied tag nonce\r
        \r
        uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };\r
@@ -205,12 +161,6 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
        if (MF_DBGLEVEL >= 4)   Dbprintf("rand tag nonce len: %x", len);  \r
        if (len != 4) return 1;\r
        \r
-       // "random" reader nonce:\r
-       nr[0] = 0x55;\r
-       nr[1] = 0x41;\r
-       nr[2] = 0x49;\r
-       nr[3] = 0x92; \r
-       \r
        // Save the tag nonce (nt)\r
        nt = bytes_to_num(receivedAnswer, 4);\r
 \r
@@ -242,7 +192,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
        for (pos = 0; pos < 4; pos++)\r
        {\r
                mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];\r
-               par[0] |= (((filter(pcs->odd) ^ oddparity(nr[pos])) & 0x01) << (7-pos));\r
+               par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos));\r
        }       \r
                \r
        // Skip 32 bits in pseudo random generator\r
@@ -253,7 +203,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
        {\r
                nt = prng_successor(nt,8);\r
                mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);\r
-               par[0] |= (((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) << (7-pos));\r
+               par[0] |= (((filter(pcs->odd) ^ oddparity8(nt & 0xff)) & 0x01) << (7-pos));\r
        }       \r
                \r
        // Transmit reader nonce and reader answer\r
@@ -318,8 +268,10 @@ int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){
        uint8_t key[4] = {0x00};\r
        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
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
+               Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
+       len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);\r
+\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 +332,8 @@ 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 +377,7 @@ 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
@@ -473,7 +426,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
        for (pos = 0; pos < 18; pos++)\r
        {\r
                d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];\r
-               par[pos>>3] |= (((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));\r
+               par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));\r
        }       \r
 \r
        ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);\r
@@ -493,7 +446,8 @@ 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 +455,6 @@ 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 +477,21 @@ 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
@@ -546,22 +500,21 @@ int mifare_ultra_special_writeblock(uint8_t blockNo, uint8_t *blockData)
     }\r
     return 0;\r
 }\r
-\r
-int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) \r
-{\r
+int mifare_classic_halt_ex(struct Crypto1State *pcs) {\r
        uint16_t len;   \r
-       uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
-       uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];\r
+       uint8_t receivedAnswer[4];\r
+       uint8_t receivedAnswerPar[4];\r
 \r
        len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);\r
        if (len != 0) {\r
-               if (MF_DBGLEVEL >= MF_DBG_ERROR)\r
-                       Dbprintf("halt error. response len: %x", len);  \r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("halt error. response len: %x", len);  \r
                return 1;\r
        }\r
-\r
        return 0;\r
 }\r
+int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) {\r
+       return mifare_classic_halt_ex(pcs);\r
+}\r
 \r
 int mifare_ultra_halt()\r
 {\r
@@ -601,8 +554,12 @@ uint8_t FirstBlockOfSector(uint8_t sectorNo)
 \r
 // work with emulator memory\r
 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {\r
+       emlSetMem_xt(data, blockNum, blocksCount, 16);\r
+}\r
+\r
+void emlSetMem_xt(uint8_t *data, int blockNum, int blocksCount, int blockBtWidth) {\r
        uint8_t* emCARD = BigBuf_get_EM_addr();\r
-       memcpy(emCARD + blockNum * 16, data, blocksCount * 16);\r
+       memcpy(emCARD + blockNum * blockBtWidth, data, blocksCount * blockBtWidth);\r
 }\r
 \r
 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {\r
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