| /* |
| * The device /dev/cryptocop is accessible using this driver using |
| * CRYPTOCOP_MAJOR (254) and minor number 0. |
| */ |
| |
| #ifndef _UAPICRYPTOCOP_H |
| #define _UAPICRYPTOCOP_H |
| |
| #include <linux/uio.h> |
| |
| |
| #define CRYPTOCOP_SESSION_ID_NONE (0) |
| |
| typedef unsigned long long int cryptocop_session_id; |
| |
| /* cryptocop ioctls */ |
| #define ETRAXCRYPTOCOP_IOCTYPE (250) |
| |
| #define CRYPTOCOP_IO_CREATE_SESSION _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 1, struct strcop_session_op) |
| #define CRYPTOCOP_IO_CLOSE_SESSION _IOW(ETRAXCRYPTOCOP_IOCTYPE, 2, struct strcop_session_op) |
| #define CRYPTOCOP_IO_PROCESS_OP _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 3, struct strcop_crypto_op) |
| #define CRYPTOCOP_IO_MAXNR (3) |
| |
| typedef enum { |
| cryptocop_cipher_des = 0, |
| cryptocop_cipher_3des = 1, |
| cryptocop_cipher_aes = 2, |
| cryptocop_cipher_m2m = 3, /* mem2mem is essentially a NULL cipher with blocklength=1 */ |
| cryptocop_cipher_none |
| } cryptocop_cipher_type; |
| |
| typedef enum { |
| cryptocop_digest_sha1 = 0, |
| cryptocop_digest_md5 = 1, |
| cryptocop_digest_none |
| } cryptocop_digest_type; |
| |
| typedef enum { |
| cryptocop_csum_le = 0, |
| cryptocop_csum_be = 1, |
| cryptocop_csum_none |
| } cryptocop_csum_type; |
| |
| typedef enum { |
| cryptocop_cipher_mode_ecb = 0, |
| cryptocop_cipher_mode_cbc, |
| cryptocop_cipher_mode_none |
| } cryptocop_cipher_mode; |
| |
| typedef enum { |
| cryptocop_3des_eee = 0, |
| cryptocop_3des_eed = 1, |
| cryptocop_3des_ede = 2, |
| cryptocop_3des_edd = 3, |
| cryptocop_3des_dee = 4, |
| cryptocop_3des_ded = 5, |
| cryptocop_3des_dde = 6, |
| cryptocop_3des_ddd = 7 |
| } cryptocop_3des_mode; |
| |
| /* Usermode accessible (ioctl) operations. */ |
| struct strcop_session_op{ |
| cryptocop_session_id ses_id; |
| |
| cryptocop_cipher_type cipher; /* AES, DES, 3DES, m2m, none */ |
| |
| cryptocop_cipher_mode cmode; /* ECB, CBC, none */ |
| cryptocop_3des_mode des3_mode; |
| |
| cryptocop_digest_type digest; /* MD5, SHA1, none */ |
| |
| cryptocop_csum_type csum; /* BE, LE, none */ |
| |
| unsigned char *key; |
| size_t keylen; |
| }; |
| |
| #define CRYPTOCOP_CSUM_LENGTH (2) |
| #define CRYPTOCOP_MAX_DIGEST_LENGTH (20) /* SHA-1 20, MD5 16 */ |
| #define CRYPTOCOP_MAX_IV_LENGTH (16) /* (3)DES==8, AES == 16 */ |
| #define CRYPTOCOP_MAX_KEY_LENGTH (32) |
| |
| struct strcop_crypto_op{ |
| cryptocop_session_id ses_id; |
| |
| /* Indata. */ |
| unsigned char *indata; |
| size_t inlen; /* Total indata length. */ |
| |
| /* Cipher configuration. */ |
| unsigned char do_cipher:1; |
| unsigned char decrypt:1; /* 1 == decrypt, 0 == encrypt */ |
| unsigned char cipher_explicit:1; |
| size_t cipher_start; |
| size_t cipher_len; |
| /* cipher_iv is used if do_cipher and cipher_explicit and the cipher |
| mode is CBC. The length is controlled by the type of cipher, |
| e.g. DES/3DES 8 octets and AES 16 octets. */ |
| unsigned char cipher_iv[CRYPTOCOP_MAX_IV_LENGTH]; |
| /* Outdata. */ |
| unsigned char *cipher_outdata; |
| size_t cipher_outlen; |
| |
| /* digest configuration. */ |
| unsigned char do_digest:1; |
| size_t digest_start; |
| size_t digest_len; |
| /* Outdata. The actual length is determined by the type of the digest. */ |
| unsigned char digest[CRYPTOCOP_MAX_DIGEST_LENGTH]; |
| |
| /* Checksum configuration. */ |
| unsigned char do_csum:1; |
| size_t csum_start; |
| size_t csum_len; |
| /* Outdata. */ |
| unsigned char csum[CRYPTOCOP_CSUM_LENGTH]; |
| }; |
| |
| |
| |
| |
| #endif /* _UAPICRYPTOCOP_H */ |