116 lines
4.4 KiB
C
116 lines
4.4 KiB
C
/*-
|
|
* Copyright (c) 2010 Konstantin Belousov <kib@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _AESNI_H_
|
|
#define _AESNI_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/queue.h>
|
|
|
|
#include <opencrypto/cryptodev.h>
|
|
|
|
#if defined(__amd64__) || (defined(__i386__) && !defined(PC98))
|
|
#include <machine/cpufunc.h>
|
|
#include <machine/cputypes.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/specialreg.h>
|
|
#endif
|
|
#if defined(__i386__)
|
|
#include <machine/npx.h>
|
|
#elif defined(__amd64__)
|
|
#include <machine/fpu.h>
|
|
#endif
|
|
|
|
#define AES128_ROUNDS 10
|
|
#define AES192_ROUNDS 12
|
|
#define AES256_ROUNDS 14
|
|
#define AES_SCHED_LEN ((AES256_ROUNDS + 1) * AES_BLOCK_LEN)
|
|
|
|
struct aesni_session {
|
|
uint8_t enc_schedule[AES_SCHED_LEN] __aligned(16);
|
|
uint8_t dec_schedule[AES_SCHED_LEN] __aligned(16);
|
|
uint8_t xts_schedule[AES_SCHED_LEN] __aligned(16);
|
|
int algo;
|
|
int rounds;
|
|
/* uint8_t *ses_ictx; */
|
|
/* uint8_t *ses_octx; */
|
|
/* int ses_mlen; */
|
|
int used;
|
|
uint32_t id;
|
|
TAILQ_ENTRY(aesni_session) next;
|
|
};
|
|
|
|
/*
|
|
* Internal functions, implemented in assembler.
|
|
*/
|
|
void aesni_set_enckey(const uint8_t *userkey,
|
|
uint8_t *encrypt_schedule /*__aligned(16)*/, int number_of_rounds);
|
|
void aesni_set_deckey(const uint8_t *encrypt_schedule /*__aligned(16)*/,
|
|
uint8_t *decrypt_schedule /*__aligned(16)*/, int number_of_rounds);
|
|
|
|
/*
|
|
* Slightly more public interfaces.
|
|
*/
|
|
void aesni_encrypt_cbc(int rounds, const void *key_schedule /*__aligned(16)*/,
|
|
size_t len, const uint8_t *from, uint8_t *to,
|
|
const uint8_t iv[AES_BLOCK_LEN]);
|
|
void aesni_decrypt_cbc(int rounds, const void *key_schedule /*__aligned(16)*/,
|
|
size_t len, uint8_t *buf, const uint8_t iv[AES_BLOCK_LEN]);
|
|
void aesni_encrypt_ecb(int rounds, const void *key_schedule /*__aligned(16)*/,
|
|
size_t len, const uint8_t *from, uint8_t *to);
|
|
void aesni_decrypt_ecb(int rounds, const void *key_schedule /*__aligned(16)*/,
|
|
size_t len, const uint8_t *from, uint8_t *to);
|
|
void aesni_encrypt_icm(int rounds, const void *key_schedule /*__aligned(16)*/,
|
|
size_t len, const uint8_t *from, uint8_t *to,
|
|
const uint8_t iv[AES_BLOCK_LEN]);
|
|
|
|
void aesni_encrypt_xts(int rounds, const void *data_schedule /*__aligned(16)*/,
|
|
const void *tweak_schedule /*__aligned(16)*/, size_t len,
|
|
const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]);
|
|
void aesni_decrypt_xts(int rounds, const void *data_schedule /*__aligned(16)*/,
|
|
const void *tweak_schedule /*__aligned(16)*/, size_t len,
|
|
const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]);
|
|
|
|
/* GCM & GHASH functions */
|
|
void AES_GCM_encrypt(const unsigned char *in, unsigned char *out,
|
|
const unsigned char *addt, const unsigned char *ivec,
|
|
unsigned char *tag, uint32_t nbytes, uint32_t abytes, int ibytes,
|
|
const unsigned char *key, int nr);
|
|
int AES_GCM_decrypt(const unsigned char *in, unsigned char *out,
|
|
const unsigned char *addt, const unsigned char *ivec,
|
|
const unsigned char *tag, uint32_t nbytes, uint32_t abytes, int ibytes,
|
|
const unsigned char *key, int nr);
|
|
|
|
int aesni_cipher_setup_common(struct aesni_session *ses, const uint8_t *key,
|
|
int keylen);
|
|
uint8_t *aesni_cipher_alloc(struct cryptodesc *enccrd, struct cryptop *crp,
|
|
int *allocated);
|
|
|
|
#endif /* _AESNI_H_ */
|