2 * The device /dev/cryptocop is accessible using this driver using
3 * CRYPTOCOP_MAJOR (254) and minor number 0.
6 #ifndef _UAPICRYPTOCOP_H
7 #define _UAPICRYPTOCOP_H
12 #define CRYPTOCOP_SESSION_ID_NONE (0)
14 typedef unsigned long long int cryptocop_session_id;
16 /* cryptocop ioctls */
17 #define ETRAXCRYPTOCOP_IOCTYPE (250)
19 #define CRYPTOCOP_IO_CREATE_SESSION _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 1, struct strcop_session_op)
20 #define CRYPTOCOP_IO_CLOSE_SESSION _IOW(ETRAXCRYPTOCOP_IOCTYPE, 2, struct strcop_session_op)
21 #define CRYPTOCOP_IO_PROCESS_OP _IOWR(ETRAXCRYPTOCOP_IOCTYPE, 3, struct strcop_crypto_op)
22 #define CRYPTOCOP_IO_MAXNR (3)
25 cryptocop_cipher_des = 0,
26 cryptocop_cipher_3des = 1,
27 cryptocop_cipher_aes = 2,
28 cryptocop_cipher_m2m = 3, /* mem2mem is essentially a NULL cipher with blocklength=1 */
30 } cryptocop_cipher_type;
33 cryptocop_digest_sha1 = 0,
34 cryptocop_digest_md5 = 1,
36 } cryptocop_digest_type;
39 cryptocop_csum_le = 0,
40 cryptocop_csum_be = 1,
42 } cryptocop_csum_type;
45 cryptocop_cipher_mode_ecb = 0,
46 cryptocop_cipher_mode_cbc,
47 cryptocop_cipher_mode_none
48 } cryptocop_cipher_mode;
51 cryptocop_3des_eee = 0,
52 cryptocop_3des_eed = 1,
53 cryptocop_3des_ede = 2,
54 cryptocop_3des_edd = 3,
55 cryptocop_3des_dee = 4,
56 cryptocop_3des_ded = 5,
57 cryptocop_3des_dde = 6,
58 cryptocop_3des_ddd = 7
59 } cryptocop_3des_mode;
61 /* Usermode accessible (ioctl) operations. */
62 struct strcop_session_op{
63 cryptocop_session_id ses_id;
65 cryptocop_cipher_type cipher; /* AES, DES, 3DES, m2m, none */
67 cryptocop_cipher_mode cmode; /* ECB, CBC, none */
68 cryptocop_3des_mode des3_mode;
70 cryptocop_digest_type digest; /* MD5, SHA1, none */
72 cryptocop_csum_type csum; /* BE, LE, none */
78 #define CRYPTOCOP_CSUM_LENGTH (2)
79 #define CRYPTOCOP_MAX_DIGEST_LENGTH (20) /* SHA-1 20, MD5 16 */
80 #define CRYPTOCOP_MAX_IV_LENGTH (16) /* (3)DES==8, AES == 16 */
81 #define CRYPTOCOP_MAX_KEY_LENGTH (32)
83 struct strcop_crypto_op{
84 cryptocop_session_id ses_id;
87 unsigned char *indata;
88 size_t inlen; /* Total indata length. */
90 /* Cipher configuration. */
91 unsigned char do_cipher:1;
92 unsigned char decrypt:1; /* 1 == decrypt, 0 == encrypt */
93 unsigned char cipher_explicit:1;
96 /* cipher_iv is used if do_cipher and cipher_explicit and the cipher
97 mode is CBC. The length is controlled by the type of cipher,
98 e.g. DES/3DES 8 octets and AES 16 octets. */
99 unsigned char cipher_iv[CRYPTOCOP_MAX_IV_LENGTH];
101 unsigned char *cipher_outdata;
102 size_t cipher_outlen;
104 /* digest configuration. */
105 unsigned char do_digest:1;
108 /* Outdata. The actual length is determined by the type of the digest. */
109 unsigned char digest[CRYPTOCOP_MAX_DIGEST_LENGTH];
111 /* Checksum configuration. */
112 unsigned char do_csum:1;
116 unsigned char csum[CRYPTOCOP_CSUM_LENGTH];
122 #endif /* _UAPICRYPTOCOP_H */