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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 #include <stdint.h>
16 #include <stdbool.h>
17
18 #include "crapto1/crapto1.h"
19 #include "usb_cdc.h"
20
21 // mifare authentication
22 #define CRYPT_NONE 0
23 #define CRYPT_ALL 1
24 #define CRYPT_REQUEST 2
25 #define AUTH_FIRST 0
26 #define AUTH_NESTED 2
27
28 // mifare 4bit card answers
29 #define CARD_ACK 0x0A // 1010 - ACK
30 #define CARD_NACK_NA 0x04 // 0100 - NACK, not allowed (command not allowed)
31 #define CARD_NACK_TR 0x05 // 0101 - NACK, transmission error
32
33 // reader voltage field detector
34 #define MF_MINFIELDV 4000
35
36 // debug
37 // 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode
38 #define MF_DBG_NONE 0
39 #define MF_DBG_ERROR 1
40 #define MF_DBG_ALL 2
41 #define MF_DBG_EXTENDED 4
42
43 extern int MF_DBGLEVEL;
44
45 //functions
46 int mifare_sendcmd(uint8_t cmd, uint8_t *data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);
47 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);
48
49 // mifare classic
50 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested);
51 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);
52 int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
53 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid);
54 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
55
56 // Ultralight/NTAG...
57 int mifare_ul_ev1_auth(uint8_t *key, uint8_t *pack);
58 int mifare_ultra_auth(uint8_t *key);
59 int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData);
60 //int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData);
61 int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData);
62 int mifare_ultra_halt();
63
64 // desfire
65 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);
66 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);
67 int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData);
68 int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData);
69
70 // crypto functions
71 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len);
72 void mf_crypto1_decryptEx(struct Crypto1State *pcs, uint8_t *data_in, int len, uint8_t *data_out);
73 void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par);
74 uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data);
75
76 // Mifare memory structure
77 uint8_t NumBlocksPerSector(uint8_t sectorNo);
78 uint8_t FirstBlockOfSector(uint8_t sectorNo);
79 bool IsSectorTrailer(uint8_t blockNo);
80 uint8_t SectorTrailer(uint8_t blockNo);
81
82 // emulator functions
83 void emlClearMem(void);
84 void emlSetMem(uint8_t *data, int blockNum, int blocksCount);
85 void emlGetMem(uint8_t *data, int blockNum, int blocksCount);
86 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount);
87 uint64_t emlGetKey(int sectorNum, int keyType);
88 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum);
89 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum);
90 int emlCheckValBl(int blockNum);
91
92 // mifare check keys
93 typedef uint8_t TKeyIndex[2][40];
94 int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint64_t ui64Key, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel);
95 int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel);
96 int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint8_t debugLevel, TKeyIndex *keyIndex);
97
98 #endif
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