diff options
Diffstat (limited to 'include/linux/cryptodev.h')
| -rw-r--r-- | include/linux/cryptodev.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/include/linux/cryptodev.h b/include/linux/cryptodev.h new file mode 100644 index 00000000000..4d6b712e506 --- /dev/null +++ b/include/linux/cryptodev.h @@ -0,0 +1,155 @@ +/* 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 L_CRYPTODEV_H +#define L_CRYPTODEV_H + +#ifndef __KERNEL__ +#include <inttypes.h> +#define __user +#else +#endif + +/* 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 + */ + uint32_t cipher; /* cryptodev_crypto_op_t */ + uint32_t mac; /* cryptodev_crypto_op_t */ + + uint32_t keylen; + uint8_t __user *key; + uint32_t mackeylen; + uint8_t __user *mackey; + + uint32_t ses; /* session identifier */ +}; + +#define COP_ENCRYPT 0 +#define COP_DECRYPT 1 + +/* input of CIOCCRYPT */ + struct crypt_op { + uint32_t ses; /* session identifier */ + uint16_t op; /* COP_ENCRYPT or COP_DECRYPT */ + uint16_t flags; /* no usage so far, use 0 */ + uint32_t len; /* length of source data */ + uint8_t __user *src; /* source data */ + uint8_t __user *dst; /* pointer to output data */ + uint8_t __user *mac; /* pointer to output data for hash/MAC operations */ + uint8_t __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 { + uint8_t* crp_p; + uint32_t crp_nbits; +}; + +#define CRK_MAXPARAM 8 + +/* input of CIOCKEY */ +struct crypt_kop { + uint32_t crk_op; /* cryptodev_crk_ot_t */ + uint32_t crk_status; + uint16_t crk_iparams; + uint16_t crk_oparams; + uint32_t 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, uint32_t) +#define CIOCGSESSION _IOWR('c', 102, struct session_op) +#define CIOCFSESSION _IOW('c', 103, uint32_t) +#define CIOCCRYPT _IOWR('c', 104, struct crypt_op) +#define CIOCKEY _IOWR('c', 105, struct crypt_kop) +#define CIOCASYMFEAT _IOR('c', 106, uint32_t) + +#endif /* L_CRYPTODEV_H */ |