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aes_neon.h revision 1.1 
      1 /*	$NetBSD: aes_neon.h,v 1.1 2020/06/29 23:56:31 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef	_CRYPTO_AES_ARCH_ARM_AES_NEON_H
     30 #define	_CRYPTO_AES_ARCH_ARM_AES_NEON_H
     31 
     32 #include <crypto/aes/aes.h>
     33 
     34 /*
     35  * These functions MUST NOT use any vector registers for parameters or
     36  * results -- the caller is compiled with -mfloat-abi=soft in the
     37  * kernel, and dynamically turns on the vector unit just before calling
     38  * them.  Internal subroutines that pass vector parameters are declared
     39  * in aes_neon_impl.h instead.
     40  */
     41 
     42 void aes_neon_setenckey(struct aesenc *, const uint8_t *, unsigned);
     43 void aes_neon_setdeckey(struct aesdec *, const uint8_t *, unsigned);
     44 
     45 void aes_neon_enc(const struct aesenc *, const uint8_t[static 16],
     46     uint8_t[static 16], uint32_t);
     47 void aes_neon_dec(const struct aesdec *, const uint8_t[static 16],
     48     uint8_t[static 16], uint32_t);
     49 void aes_neon_cbc_enc(const struct aesenc *, const uint8_t[static 16],
     50     uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     51 void aes_neon_cbc_dec(const struct aesdec *, const uint8_t[static 16],
     52     uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     53 void aes_neon_xts_enc(const struct aesenc *, const uint8_t[static 16],
     54     uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     55 void aes_neon_xts_dec(const struct aesdec *, const uint8_t[static 16],
     56     uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     57 
     58 int aes_neon_selftest(void);
     59 
     60 extern struct aes_impl aes_neon_impl;
     61 
     62 #endif	/* _CRYPTO_AES_ARCH_ARM_AES_NEON_H */
     63