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/* Copyright (c) 2017, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#ifndef OPENSSL_HEADER_AES_INTERNAL_H
#define OPENSSL_HEADER_AES_INTERNAL_H
#include <stdlib.h>
#include <openssl/cpu.h>
#if defined(__cplusplus)
extern "C" {
#endif
#if !defined(OPENSSL_NO_ASM) && (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64))
#define HWAES
static int hwaes_capable(void) {
return CRYPTO_is_ARMv8_AES_capable();
}
#endif /* !NO_ASM && (AES || AARCH64) */
#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_PPC64LE)
#define HWAES
static int hwaes_capable(void) {
return CRYPTO_is_PPC64LE_vcrypto_capable();
}
#endif /* !NO_ASM && PPC64LE */
#if defined(HWAES)
int aes_hw_set_encrypt_key(const uint8_t *user_key, const int bits,
AES_KEY *key);
int aes_hw_set_decrypt_key(const uint8_t *user_key, const int bits,
AES_KEY *key);
void aes_hw_encrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_hw_decrypt(const uint8_t *in, uint8_t *out, const AES_KEY *key);
void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, uint8_t *ivec, const int enc);
void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out, size_t len,
const AES_KEY *key, const uint8_t ivec[16]);
#else
/* If HWAES isn't defined then we provide dummy functions for each of the hwaes
* functions. */
static int hwaes_capable(void) { return 0; }
static int aes_hw_set_encrypt_key(const uint8_t *user_key, int bits,
AES_KEY *key) {
abort();
}
static int aes_hw_set_decrypt_key(const uint8_t *user_key, int bits,
AES_KEY *key) {
abort();
}
static void aes_hw_encrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
static void aes_hw_decrypt(const uint8_t *in, uint8_t *out,
const AES_KEY *key) {
abort();
}
static void aes_hw_cbc_encrypt(const uint8_t *in, uint8_t *out, size_t length,
const AES_KEY *key, uint8_t *ivec, int enc) {
abort();
}
static void aes_hw_ctr32_encrypt_blocks(const uint8_t *in, uint8_t *out,
size_t len, const AES_KEY *key,
const uint8_t ivec[16]) {
abort();
}
#endif /* !HWAES */
#if defined(__cplusplus)
} /* extern C */
#endif
#endif /* OPENSSL_HEADER_AES_INTERNAL_H */
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