xref: /external/chromium_org/third_party/boringssl/src/crypto/aes/internal.h

/* ====================================================================
 * Copyright (c) 2002-2006 The OpenSSL Project.  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.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ==================================================================== */

#ifndef OPENSSL_HEADER_AES_INTERNAL_H
#define OPENSSL_HEADER_AES_INTERNAL_H

#include <openssl/base.h>

#if defined(__cplusplus)
extern "C" {
#endif


#if defined(_MSC_VER) && \
    (defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64))
#define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00)
#define GETU32(p) SWAP(*((uint32_t *)(p)))
#define PUTU32(ct, st) \
  { *((uint32_t *)(ct)) = SWAP((st)); }
#else
#define GETU32(pt)                                         \
  (((uint32_t)(pt)[0] << 24) ^ ((uint32_t)(pt)[1] << 16) ^ \
   ((uint32_t)(pt)[2] << 8) ^ ((uint32_t)(pt)[3]))
#define PUTU32(ct, st)          \
  {                             \
    (ct)[0] = (uint8_t)((st) >> 24); \
    (ct)[1] = (uint8_t)((st) >> 16); \
    (ct)[2] = (uint8_t)((st) >> 8);  \
    (ct)[3] = (uint8_t)(st);         \
  }
#endif

#define MAXKC (256 / 32)
#define MAXKB (256 / 8)
#define MAXNR 14


#if defined(__cplusplus)
} /* extern C */
#endif

#endif /* OPENSSL_HEADER_AES_INTERNAL_H */