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1 //-----------------------------------------------------------------------------
2 // Merlok, May 2011
3 // Many authors, that makes it possible
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // code for work with mifare cards.
10 //-----------------------------------------------------------------------------
11
12 #ifndef __MIFAREUTIL_H
13 #define __MIFAREUTIL_H
14
15 // mifare authentication
16 #define CRYPT_NONE 0
17 #define CRYPT_ALL 1
18 #define CRYPT_REQUEST 2
19 #define AUTH_FIRST 0
20 #define AUTH_NESTED 2
21
22 // mifare 4bit card answers
23 #define CARD_ACK 0x0A // 1010 - ACK
24 #define CARD_NACK_NA 0x04 // 0100 - NACK, not allowed (command not allowed)
25 #define CARD_NACK_TR 0x05 // 0101 - NACK, transmission error
26
27 // reader voltage field detector
28 #define MF_MINFIELDV 4000
29
30 // debug
31 // 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode
32 #define MF_DBG_NONE 0
33 #define MF_DBG_ERROR 1
34 #define MF_DBG_ALL 2
35 #define MF_DBG_EXTENDED 4
36
37 extern int MF_DBGLEVEL;
38
39 //mifare emulator states
40 #define MFEMUL_NOFIELD 0
41 #define MFEMUL_IDLE 1
42 #define MFEMUL_SELECT1 2
43 #define MFEMUL_SELECT2 3
44 #define MFEMUL_AUTH1 4
45 #define MFEMUL_AUTH2 5
46 #define MFEMUL_WORK 6
47 #define MFEMUL_WRITEBL2 7
48 #define MFEMUL_INTREG_INC 8
49 #define MFEMUL_INTREG_DEC 9
50 #define MFEMUL_INTREG_REST 10
51 #define MFEMUL_HALTED 11
52
53 #define cardSTATE_TO_IDLE() cardSTATE = MFEMUL_IDLE; LED_B_OFF(); LED_C_OFF();
54
55 //functions
56 int mifare_sendcmd(uint8_t cmd, uint8_t *data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);
57 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);
58
59 // mifare classic
60 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested);
61 int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested, uint32_t * ntptr, uint32_t *timing);
62 int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
63 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid);
64 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
65
66 // Ultralight/NTAG...
67 int mifare_ul_ev1_auth(uint8_t *key, uint8_t *pack);
68 int mifare_ultra_auth(uint8_t *key);
69 int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData);
70 //int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData);
71 int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData);
72 int mifare_ultra_halt();
73
74 // desfire
75 int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);
76 int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing);
77 int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData);
78 int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData);
79
80 // crypto functions
81 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len);
82 void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par);
83 uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data);
84
85 // Mifare memory structure
86 uint8_t NumBlocksPerSector(uint8_t sectorNo);
87 uint8_t FirstBlockOfSector(uint8_t sectorNo);
88
89 // emulator functions
90 void emlClearMem(void);
91 void emlSetMem(uint8_t *data, int blockNum, int blocksCount);
92 void emlGetMem(uint8_t *data, int blockNum, int blocksCount);
93 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount);
94 uint64_t emlGetKey(int sectorNum, int keyType);
95 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum);
96 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum);
97 int emlCheckValBl(int blockNum);
98
99 #endif
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