diff options
Diffstat (limited to 'lib/crypto/aesni.h')
| -rw-r--r-- | lib/crypto/aesni.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/lib/crypto/aesni.h b/lib/crypto/aesni.h new file mode 100644 index 0000000..13d09d2 --- /dev/null +++ b/lib/crypto/aesni.h @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2008, Intel Corp. + * Author: Huang Ying <ying.huang@intel.com> + * Vinodh Gopal <vinodh.gopal@intel.com> + * Kahraman Akdemir + * + * Ported x86_64 version to x86: + * Author: Mathias Krause <minipli@googlemail.com> + * + * Modified for use in Samba by Justin Maggard <jmaggard@netgear.com> + * and Jeremy Allison <jra@samba.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef LIB_CRYPTO_AESNI_H +#define LIB_CRYPTO_AESNI_H 1 + +#if defined(HAVE_AESNI_INTEL) + +#define AES_MAX_KEYLENGTH (15 * 16) +#define AES_MAX_KEYLENGTH_U32 (AES_MAX_KEYLENGTH / sizeof(uint32_t)) + +/* + * Please ensure that the first two fields are 16-byte aligned + * relative to the start of the structure, i.e., don't move them! + */ +struct crypto_aes_ctx { + uint32_t key_enc[AES_MAX_KEYLENGTH_U32]; + uint32_t key_dec[AES_MAX_KEYLENGTH_U32]; + uint32_t key_length; +}; + +struct crypto_aesni_ctx { + uint8_t _acc_ctx[sizeof(struct crypto_aes_ctx) + 16]; + struct crypto_aes_ctx *acc_ctx; +}; + +/* + * These next 4 functions are actually implemented + * in the assembly language file: + * third_party/aesni-intel/aesni-intel_asm.c + */ + +int aesni_set_key(struct crypto_aes_ctx *ctx, + const uint8_t *in_key, + unsigned int key_len); +void aesni_enc(struct crypto_aes_ctx *ctx, uint8_t *dst, const uint8_t *src); +void aesni_dec(struct crypto_aes_ctx *ctx, uint8_t *dst, const uint8_t *src); + +#else /* #if defined(HAVE_AESNI_INTEL) */ + +/* + * We need a dummy definition of struct crypto_aesni_ctx to allow compiles. + */ + +struct crypto_aesni_ctx { + int dummy; +}; + +#endif /* #if defined(HAVE_AESNI_INTEL) */ + +#endif /* LIB_CRYPTO_AESNI_H */ |