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
|
/*
* Driver for /dev/crypto device (aka CryptoDev)
*
* Copyright (c) 2004 Michal Ludvig <mludvig@suse.cz>, SuSE Labs
*
* Structures and ioctl command names were taken from
* OpenBSD to preserve compatibility with their API.
*
*/
#ifndef _CRYPTODEV_H
#define _CRYPTODEV_H
#ifndef __KERNEL__
#include <inttypes.h>
#endif
#define CRYPTODEV_MINOR MISC_DYNAMIC_MINOR
#define CRYPTO_FLAG_ECB 0x0000
#define CRYPTO_FLAG_CBC 0x0001
#define CRYPTO_FLAG_CFB 0x0002
#define CRYPTO_FLAG_OFB 0x0003
#define CRYPTO_FLAG_CTR 0x0004
#define CRYPTO_FLAG_HMAC 0x0010
#define CRYPTO_FLAG_MASK 0x00FF
#define CRYPTO_CIPHER_NAME 0x0100
#define CRYPTO_CIPHER_NAME_CBC (CRYPTO_CIPHER_NAME | CRYPTO_FLAG_CBC)
#define CRYPTO_HASH_NAME 0x0200
#define CRYPTO_HASH_NAME_HMAC (CRYPTO_HASH_NAME | CRYPTO_FLAG_HMAC)
/* ioctl parameter to create a session */
struct session_op {
unsigned int cipher; /* e.g. CRYPTO_DES_CBC */
unsigned int mac; /* e.g. CRYPTO_MD5_HMAC */
char *alg_name; /* set cipher=CRYPTO_CIPHER_NAME
or mac=CRYPTO_HASH_NAME */
#define MAX_ALG_NAME_LEN 128
size_t alg_namelen;
size_t keylen; /* cipher key */
char *key;
int mackeylen; /* mac key */
char *mackey;
/* Return values */
unsigned int blocksize; /* selected algorithm's block size */
uint32_t ses; /* session ID */
};
/* ioctl parameter to request a crypt/decrypt operation against a session */
struct crypt_op {
uint32_t ses; /* from session_op->ses */
#define COP_DECRYPT 0
#define COP_ENCRYPT 1
uint32_t op; /* ie. COP_ENCRYPT */
uint32_t flags; /* unused */
size_t len;
char *src, *dst;
char *mac;
char *iv;
};
/* clone original filedescriptor */
#define CRIOGET _IOWR('c', 100, uint32_t)
/* create crypto session */
#define CIOCGSESSION _IOWR('c', 101, struct session_op)
/* finish crypto session */
#define CIOCFSESSION _IOW('c', 102, uint32_t)
/* request encryption/decryptions of a given buffer */
#define CIOCCRYPT _IOWR('c', 103, struct crypt_op)
/* ioctl()s for asym-crypto. Not yet supported. */
#define CIOCKEY _IOWR('c', 104, void *)
#define CIOCASYMFEAT _IOR('c', 105, uint32_t)
#endif /* _CRYPTODEV_H */
|
