1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
/*
* 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 */
|