//-----------------------------------------------------------------------------\r
-// Merlok, May 2011\r
-// Many authors, that makes it possible\r
+// Merlok, May 2011, 2012\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
-// code for work with mifare cards.\r
+// Work with mifare cards.\r
//-----------------------------------------------------------------------------\r
\r
#include "proxmark3.h"\r
\r
int MF_DBGLEVEL = MF_DBG_ALL;\r
\r
+// memory management\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
+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
{\r
return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, NULL);\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
{\r
return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL);\r
// Mifare HALT\r
uint8_t* receivedAnswer = mifare_get_bigbufptr();\r
\r
- len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer);\r
+ len = mifare_sendcmd_short(pcs, pcs == NULL ? 0:1, 0x50, 0x00, receivedAnswer);\r
if (len != 0) {\r
if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len); \r
return 1;\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
+ \r
+ memcpy(blReg, data, 4);\r
+ *blBlock = data[12];\r
+ \r
+ return 0;\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
+\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 b;\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 uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};\r
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();\r
+ \r
+ memset(emCARD, 0, CARD_MEMORY_LEN);\r
+ \r
+ // fill sectors trailer data\r
+ for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {\r
+ emlSetMem((uint8_t *)trailer, b , 1);\r
+ } \r
+\r
+ // uid\r
+ emlSetMem((uint8_t *)uid, 0, 1);\r
+ return;\r
+}\r
projects / proxmark3-svn / blobdiff