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/* This is a source compatible implementation with the original API of
* cryptodev by Angelos D. Keromytis, found at openbsd cryptodev.h.
* Placed under public domain */
#ifndef _LINUX_CRYPTODEV_H
#define _LINUX_CRYPTODEV_H
#include <linux/types.h>
/* API extensions for linux */
#define CRYPTO_HMAC_MAX_KEY_LEN 512
#define CRYPTO_CIPHER_MAX_KEY_LEN 64
/* All the supported algorithms
*/
typedef enum {
CRYPTO_DES_CBC=1,
CRYPTO_3DES_CBC=2,
CRYPTO_BLF_CBC=3,
CRYPTO_CAST_CBC=4,
CRYPTO_SKIPJACK_CBC=5,
CRYPTO_MD5_HMAC=6,
CRYPTO_SHA1_HMAC=7,
CRYPTO_RIPEMD160_HMAC=8,
CRYPTO_MD5_KPDK=9,
CRYPTO_SHA1_KPDK=10,
CRYPTO_RIJNDAEL128_CBC=11,
CRYPTO_AES_CBC=CRYPTO_RIJNDAEL128_CBC,
CRYPTO_ARC4=12,
CRYPTO_MD5=13,
CRYPTO_SHA1=14,
CRYPTO_DEFLATE_COMP=15,
CRYPTO_NULL=16,
CRYPTO_LZS_COMP=17,
CRYPTO_SHA2_256_HMAC=18,
CRYPTO_SHA2_384_HMAC=19,
CRYPTO_SHA2_512_HMAC=20,
CRYPTO_AES_CTR=21,
CRYPTO_AES_XTS=22,
CRYPTO_CAMELLIA_CBC=101,
CRYPTO_RIPEMD160,
CRYPTO_SHA2_256,
CRYPTO_SHA2_384,
CRYPTO_SHA2_512,
CRYPTO_ALGORITHM_ALL, /* Keep updated - see below */
} cryptodev_crypto_op_t;
#define CRYPTO_ALGORITHM_MAX (CRYPTO_ALGORITHM_ALL - 1)
/* Values for ciphers */
#define DES_BLOCK_LEN 8
#define DES3_BLOCK_LEN 8
#define RIJNDAEL128_BLOCK_LEN 16
#define AES_BLOCK_LEN RIJNDAEL128_BLOCK_LEN
#define CAMELLIA_BLOCK_LEN
#define BLOWFISH_BLOCK_LEN 8
#define SKIPJACK_BLOCK_LEN 8
#define CAST128_BLOCK_LEN 8
/* the maximum of the above */
#define EALG_MAX_BLOCK_LEN 16
/* Values for hashes/MAC */
#define AALG_MAX_RESULT_LEN 64
/* input of CIOCGSESSION */
struct session_op {
/* Specify either cipher or mac
*/
__u32 cipher; /* cryptodev_crypto_op_t */
__u32 mac; /* cryptodev_crypto_op_t */
__u32 keylen;
__u8 __user *key;
__u32 mackeylen;
__u8 __user *mackey;
__u32 ses; /* session identifier */
};
#define COP_ENCRYPT 0
#define COP_DECRYPT 1
/* input of CIOCCRYPT */
struct crypt_op {
__u32 ses; /* session identifier */
__u16 op; /* COP_ENCRYPT or COP_DECRYPT */
__u16 flags; /* no usage so far, use 0 */
__u32 len; /* length of source data */
__u8 __user *src; /* source data */
__u8 __user *dst; /* pointer to output data */
__u8 __user *mac; /* pointer to output data for hash/MAC operations */
__u8 __user *iv; /* initialization vector for encryption operations */
};
/* Stuff for bignum arithmetic and public key
* cryptography - not supported yet by linux
* cryptodev.
*/
#define CRYPTO_ALG_FLAG_SUPPORTED 1
#define CRYPTO_ALG_FLAG_RNG_ENABLE 2
#define CRYPTO_ALG_FLAG_DSA_SHA 4
struct crparam {
__u8* crp_p;
__u32 crp_nbits;
};
#define CRK_MAXPARAM 8
/* input of CIOCKEY */
struct crypt_kop {
__u32 crk_op; /* cryptodev_crk_ot_t */
__u32 crk_status;
__u16 crk_iparams;
__u16 crk_oparams;
__u32 crk_pad1;
struct crparam crk_param[CRK_MAXPARAM];
};
typedef enum {
CRK_MOD_EXP=0,
CRK_MOD_EXP_CRT=1,
CRK_DSA_SIGN=2,
CRK_DSA_VERIFY=3,
CRK_DH_COMPUTE_KEY=4,
CRK_ALGORITHM_ALL
} cryptodev_crk_op_t;
#define CRK_ALGORITHM_MAX CRK_ALGORITHM_ALL-1
/* features to be queried with CIOCASYMFEAT ioctl
*/
#define CRF_MOD_EXP (1 << CRK_MOD_EXP)
#define CRF_MOD_EXP_CRT (1 << CRK_MOD_EXP_CRT)
#define CRF_DSA_SIGN (1 << CRK_DSA_SIGN)
#define CRF_DSA_VERIFY (1 << CRK_DSA_VERIFY)
#define CRF_DH_COMPUTE_KEY (1 << CRK_DH_COMPUTE_KEY)
/* ioctl's. Compatible with old linux cryptodev.h
*/
#define CRIOGET _IOWR('c', 101, __u32)
#define CIOCGSESSION _IOWR('c', 102, struct session_op)
#define CIOCFSESSION _IOW('c', 103, __u32)
#define CIOCCRYPT _IOWR('c', 104, struct crypt_op)
#define CIOCKEY _IOWR('c', 105, struct crypt_kop)
#define CIOCASYMFEAT _IOR('c', 106, __u32)
#endif /* _LINUX_CRYPTODEV_H */
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