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Diffstat (limited to 'package/libs/openssl/include/crypto/cryptodev.h')
| -rw-r--r-- | package/libs/openssl/include/crypto/cryptodev.h | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/package/libs/openssl/include/crypto/cryptodev.h b/package/libs/openssl/include/crypto/cryptodev.h new file mode 100644 index 0000000000..7fb9c7dcda --- /dev/null +++ b/package/libs/openssl/include/crypto/cryptodev.h @@ -0,0 +1,292 @@ +/* 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 + +#include <linux/types.h> +#ifndef __KERNEL__ +#define __user +#endif + +/* API extensions for linux */ +#define CRYPTO_HMAC_MAX_KEY_LEN 512 +#define CRYPTO_CIPHER_MAX_KEY_LEN 64 + +/* All the supported algorithms + */ +enum cryptodev_crypto_op_t { + 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_AES_ECB = 23, + CRYPTO_AES_GCM = 50, + + CRYPTO_CAMELLIA_CBC = 101, + CRYPTO_RIPEMD160, + CRYPTO_SHA2_224, + CRYPTO_SHA2_256, + CRYPTO_SHA2_384, + CRYPTO_SHA2_512, + CRYPTO_SHA2_224_HMAC, + CRYPTO_ALGORITHM_ALL, /* Keep updated - see below */ +}; + +#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 16 +#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 + +/* maximum length of verbose alg names (depends on CRYPTO_MAX_ALG_NAME) */ +#define CRYPTODEV_MAX_ALG_NAME 64 + +#define HASH_MAX_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 */ +}; + +struct session_info_op { + __u32 ses; /* session identifier */ + + /* verbose names for the requested ciphers */ + struct alg_info { + char cra_name[CRYPTODEV_MAX_ALG_NAME]; + char cra_driver_name[CRYPTODEV_MAX_ALG_NAME]; + } cipher_info, hash_info; + + __u16 alignmask; /* alignment constraints */ + __u32 flags; /* SIOP_FLAGS_* */ +}; + +/* If this flag is set then this algorithm uses + * a driver only available in kernel (software drivers, + * or drivers based on instruction sets do not set this flag). + * + * If multiple algorithms are involved (as in AEAD case), then + * if one of them is kernel-driver-only this flag will be set. + */ +#define SIOP_FLAG_KERNEL_DRIVER_ONLY 1 + +#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; /* see COP_FLAG_* */ + __u32 len; /* length of source data */ + __u8 __user *src; /* source data */ + __u8 __user *dst; /* pointer to output data */ + /* pointer to output data for hash/MAC operations */ + __u8 __user *mac; + /* initialization vector for encryption operations */ + __u8 __user *iv; +}; + +/* input of CIOCAUTHCRYPT */ +struct crypt_auth_op { + __u32 ses; /* session identifier */ + __u16 op; /* COP_ENCRYPT or COP_DECRYPT */ + __u16 flags; /* see COP_FLAG_AEAD_* */ + __u32 len; /* length of source data */ + __u32 auth_len; /* length of auth data */ + __u8 __user *auth_src; /* authenticated-only data */ + + /* The current implementation is more efficient if data are + * encrypted in-place (src==dst). */ + __u8 __user *src; /* data to be encrypted and authenticated */ + __u8 __user *dst; /* pointer to output data. Must have + * space for tag. For TLS this should be at least + * len + tag_size + block_size for padding */ + + __u8 __user *tag; /* where the tag will be copied to. TLS mode + * doesn't use that as tag is copied to dst. + * SRTP mode copies tag there. */ + __u32 tag_len; /* the length of the tag. Use zero for digest size or max tag. */ + + /* initialization vector for encryption operations */ + __u8 __user *iv; + __u32 iv_len; +}; + +/* In plain AEAD mode the following are required: + * flags : 0 + * iv : the initialization vector (12 bytes) + * auth_len: the length of the data to be authenticated + * auth_src: the data to be authenticated + * len : length of data to be encrypted + * src : the data to be encrypted + * dst : space to hold encrypted data. It must have + * at least a size of len + tag_size. + * tag_size: the size of the desired authentication tag or zero to use + * the maximum tag output. + * + * Note tag isn't being used because the Linux AEAD interface + * copies the tag just after data. + */ + +/* In TLS mode (used for CBC ciphers that required padding) + * the following are required: + * flags : COP_FLAG_AEAD_TLS_TYPE + * iv : the initialization vector + * auth_len: the length of the data to be authenticated only + * len : length of data to be encrypted + * auth_src: the data to be authenticated + * src : the data to be encrypted + * dst : space to hold encrypted data (preferably in-place). It must have + * at least a size of len + tag_size + blocksize. + * tag_size: the size of the desired authentication tag or zero to use + * the default mac output. + * + * Note that the padding used is the minimum padding. + */ + +/* In SRTP mode the following are required: + * flags : COP_FLAG_AEAD_SRTP_TYPE + * iv : the initialization vector + * auth_len: the length of the data to be authenticated. This must + * include the SRTP header + SRTP payload (data to be encrypted) + rest + * + * len : length of data to be encrypted + * auth_src: pointer the data to be authenticated. Should point at the same buffer as src. + * src : pointer to the data to be encrypted. + * dst : This is mandatory to be the same as src (in-place only). + * tag_size: the size of the desired authentication tag or zero to use + * the default mac output. + * tag : Pointer to an address where the authentication tag will be copied. + */ + + +/* struct crypt_op flags */ + +#define COP_FLAG_NONE (0 << 0) /* totally no flag */ +#define COP_FLAG_UPDATE (1 << 0) /* multi-update hash mode */ +#define COP_FLAG_FINAL (1 << 1) /* multi-update final hash mode */ +#define COP_FLAG_WRITE_IV (1 << 2) /* update the IV during operation */ +#define COP_FLAG_NO_ZC (1 << 3) /* do not zero-copy */ +#define COP_FLAG_AEAD_TLS_TYPE (1 << 4) /* authenticate and encrypt using the + * TLS protocol rules */ +#define COP_FLAG_AEAD_SRTP_TYPE (1 << 5) /* authenticate and encrypt using the + * SRTP protocol rules */ +#define COP_FLAG_RESET (1 << 6) /* multi-update reset the state. + * should be used in combination + * with COP_FLAG_UPDATE */ + + +/* 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_op_t */ + __u32 crk_status; + __u16 crk_iparams; + __u16 crk_oparams; + __u32 crk_pad1; + struct crparam crk_param[CRK_MAXPARAM]; +}; + +enum cryptodev_crk_op_t { + 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 +}; + +#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) +#define CIOCGSESSINFO _IOWR('c', 107, struct session_info_op) + +/* to indicate that CRIOGET is not required in linux + */ +#define CRIOGET_NOT_NEEDED 1 + +/* additional ioctls for AEAD */ +#define CIOCAUTHCRYPT _IOWR('c', 109, struct crypt_auth_op) + +/* additional ioctls for asynchronous operation. + * These are conditionally enabled since version 1.6. + */ +#define CIOCASYNCCRYPT _IOW('c', 110, struct crypt_op) +#define CIOCASYNCFETCH _IOR('c', 111, struct crypt_op) + +#endif /* L_CRYPTODEV_H */ |