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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 "crapto1/crapto1.h"
16 #include "usb_cdc.h"
17
18 // mifare authentication
19 #define CRYPT_NONE 0
20 #define CRYPT_ALL 1
21 #define CRYPT_REQUEST 2
22 #define AUTH_FIRST 0
23 #define AUTH_NESTED 2
24 #define AUTHENTICATION_TIMEOUT 848 // card times out 1ms after wrong authentication (according to NXP documentation)
25 #define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication
26
27 // mifare 4bit card answers
28 #define CARD_ACK 0x0A // 1010 - ACK
29 #define CARD_NACK_NA 0x04 // 0100 - NACK, not allowed (command not allowed)
30 #define CARD_NACK_TR 0x05 // 0101 - NACK, transmission error
31
32 // reader voltage field detector
33 #define MF_MINFIELDV 4000
34
35 // debug
36 // 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode
37 #define MF_DBG_NONE 0
38 #define MF_DBG_ERROR 1
39 #define MF_DBG_ALL 2
40 #define MF_DBG_EXTENDED 4
41
42 extern int MF_DBGLEVEL;
43
44 //mifare emulator states
45 #define MFEMUL_NOFIELD 0
46 #define MFEMUL_IDLE 1
47 #define MFEMUL_SELECT1 2
48 #define MFEMUL_SELECT2 3
49 #define MFEMUL_SELECT3 4
50 #define MFEMUL_AUTH1 5
51 #define MFEMUL_AUTH2 6
52 #define MFEMUL_WORK 7
53 #define MFEMUL_WRITEBL2 8
54 #define MFEMUL_INTREG_INC 9
55 #define MFEMUL_INTREG_DEC 10
56 #define MFEMUL_INTREG_REST 11
57 #define MFEMUL_HALTED 12
58
59 #define cardSTATE_TO_IDLE() cardSTATE = MFEMUL_IDLE; LED_B_OFF(); LED_C_OFF();
60
61 //functions
62 int mifare_sendcmd(uint8_t cmd, uint8_t *data, uint8_t data_size, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing);
63 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);
64
65 // mifare classic
66 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested);
67 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);
68 int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
69 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid);
70 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
71
72 // Ultralight/NTAG...
73 int mifare_ul_ev1_auth(uint8_t *key, uint8_t *pack);
74 int mifare_ultra_auth(uint8_t *key);
75 int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData);
76 //int mifare_ultra_writeblock_compat(uint8_t blockNo, uint8_t *blockData);
77 int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData);
78 int mifare_ultra_halt();
79
80 // desfire
81 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);
82 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);
83 int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData);
84 int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData);
85
86 // crypto functions
87 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len);
88 void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, uint8_t *par);
89 uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data);
90
91 // Mifare memory structure
92 uint8_t NumBlocksPerSector(uint8_t sectorNo);
93 uint8_t FirstBlockOfSector(uint8_t sectorNo);
94
95 // emulator functions
96 void emlClearMem(void);
97 void emlSetMem(uint8_t *data, int blockNum, int blocksCount);
98 void emlGetMem(uint8_t *data, int blockNum, int blocksCount);
99 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount);
100 uint64_t emlGetKey(int sectorNum, int keyType);
101 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum);
102 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum);
103 int emlCheckValBl(int blockNum);
104
105 // mifare check keys
106 typedef uint8_t TKeyIndex[2][40];
107 int MifareChkBlockKey(uint8_t *uid, uint32_t *cuid, uint8_t *cascade_levels, uint64_t ui64Key, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel);
108 int MifareChkBlockKeys(uint8_t *keys, uint8_t keyCount, uint8_t blockNo, uint8_t keyType, uint8_t debugLevel);
109 int MifareMultisectorChk(uint8_t *keys, uint8_t keyCount, uint8_t SectorCount, uint8_t keyType, uint8_t debugLevel, TKeyIndex *keyIndex);
110
111 #endif
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