Fixed several issues found using a coverity-scan

[proxmark3-svn] / armsrc / mifareutil.h

//-----------------------------------------------------------------------------\r
// Merlok, May 2011\r
// Many authors, that makes 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
//-----------------------------------------------------------------------------\r
\r
#ifndef __MIFAREUTIL_H\r
#define __MIFAREUTIL_H\r
\r
// mifare authentication\r
#define CRYPT_NONE    0\r
#define CRYPT_ALL     1\r
#define CRYPT_REQUEST 2\r
#define AUTH_FIRST    0\r
#define AUTH_NESTED   2\r
\r
// mifare 4bit card answers\r
#define CARD_ACK      0x0A  // 1010 - ACK\r
#define CARD_NACK_NA  0x04  // 0100 - NACK, not allowed (command not allowed)\r
#define CARD_NACK_TR  0x05  // 0101 - NACK, transmission error\r
\r
// reader voltage field detector\r
#define MF_MINFIELDV      4000\r
\r
// debug\r
// 0 - no debug messages 1 - error messages 2 - all messages 4 - extended debug mode\r
#define MF_DBG_NONE          0\r
#define MF_DBG_ERROR         1\r
#define MF_DBG_ALL           2\r
#define MF_DBG_EXTENDED      4\r
\r
extern int MF_DBGLEVEL;\r
\r
//mifare emulator states\r
#define MFEMUL_NOFIELD      0\r
#define MFEMUL_IDLE         1\r
#define MFEMUL_SELECT1      2\r
#define MFEMUL_SELECT2      3\r
#define MFEMUL_AUTH1        4\r
#define MFEMUL_AUTH2        5\r
#define MFEMUL_WORK	        6\r
#define MFEMUL_WRITEBL2     7\r
#define MFEMUL_INTREG_INC   8\r
#define MFEMUL_INTREG_DEC   9\r
#define MFEMUL_INTREG_REST 10\r
#define MFEMUL_HALTED      11\r
\r
#define cardSTATE_TO_IDLE() cardSTATE = MFEMUL_IDLE; LED_B_OFF(); LED_C_OFF();\r
\r
//functions
uint8_t* mifare_get_bigbufptr(void);
int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t *timing);
int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t* amswer, uint8_t *timing);
int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr, uint32_t *timing);

int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, \
												uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested);\r
int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, \
													uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested, uint32_t * ntptr, uint32_t *timing);
int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData); 
int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData);
int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData);
int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData);
int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData);
int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid); 
int mifare_ultra_halt(uint32_t uid);

// crypto functions
void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *receivedCmd, int len);
void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, int len, uint32_t *par);\r
uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data);\r
\r
// memory management\r
uint8_t* mifare_get_bigbufptr(void);\r
uint8_t* eml_get_bigbufptr_sendbuf(void);\r
uint8_t* eml_get_bigbufptr_recbuf(void);\r
\r
// Mifare memory structure\r
uint8_t NumBlocksPerSector(uint8_t sectorNo);\r
uint8_t FirstBlockOfSector(uint8_t sectorNo);\r
\r
// emulator functions\r
void emlClearMem(void);\r
void emlSetMem(uint8_t *data, int blockNum, int blocksCount);\r
void emlGetMem(uint8_t *data, int blockNum, int blocksCount);\r
void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount);\r
uint64_t emlGetKey(int sectorNum, int keyType);\r
int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum);\r
int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum);
int emlCheckValBl(int blockNum);

#endif