/* ==================================================================== * Copyright (c) 2008 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_MODES_INTERNAL_H #define OPENSSL_HEADER_MODES_INTERNAL_H #include #if defined(__cplusplus) extern "C" { #endif #define asm __asm__ #define STRICT_ALIGNMENT 1 #if defined(OPENSSL_X86_64) || defined(OPENSSL_X86) || defined(OPENSSL_AARCH64) #undef STRICT_ALIGNMENT #define STRICT_ALIGNMENT 0 #endif #if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) #if defined(__GNUC__) && __GNUC__ >= 2 #if defined(OPENSSL_X86_64) #define BSWAP8(x) \ ({ \ uint64_t ret = (x); \ asm("bswapq %0" : "+r"(ret)); \ ret; \ }) #define BSWAP4(x) \ ({ \ uint32_t ret = (x); \ asm("bswapl %0" : "+r"(ret)); \ ret; \ }) #elif defined(OPENSSL_X86) #define BSWAP8(x) \ ({ \ uint32_t lo = (uint64_t)(x) >> 32, hi = (x); \ asm("bswapl %0; bswapl %1" : "+r"(hi), "+r"(lo)); \ (uint64_t) hi << 32 | lo; \ }) #define BSWAP4(x) \ ({ \ uint32_t ret = (x); \ asm("bswapl %0" : "+r"(ret)); \ ret; \ }) #elif defined(OPENSSL_AARCH64) #define BSWAP8(x) \ ({ \ uint64_t ret; \ asm("rev %0,%1" : "=r"(ret) : "r"(x)); \ ret; \ }) #define BSWAP4(x) \ ({ \ uint32_t ret; \ asm("rev %w0,%w1" : "=r"(ret) : "r"(x)); \ ret; \ }) #elif defined(OPENSSL_ARM) && !defined(STRICT_ALIGNMENT) #define BSWAP8(x) \ ({ \ uint32_t lo = (uint64_t)(x) >> 32, hi = (x); \ asm("rev %0,%0; rev %1,%1" : "+r"(hi), "+r"(lo)); \ (uint64_t) hi << 32 | lo; \ }) #define BSWAP4(x) \ ({ \ uint32_t ret; \ asm("rev %0,%1" : "=r"(ret) : "r"((uint32_t)(x))); \ ret; \ }) #endif #elif defined(_MSC_VER) #if _MSC_VER >= 1300 #pragma warning(push, 3) #include #pragma warning(pop) #pragma intrinsic(_byteswap_uint64, _byteswap_ulong) #define BSWAP8(x) _byteswap_uint64((uint64_t)(x)) #define BSWAP4(x) _byteswap_ulong((uint32_t)(x)) #elif defined(OPENSSL_X86) __inline uint32_t _bswap4(uint32_t val) { _asm mov eax, val _asm bswap eax } #define BSWAP4(x) _bswap4(x) #endif #endif #endif #if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) #define GETU32(p) BSWAP4(*(const uint32_t *)(p)) #define PUTU32(p, v) *(uint32_t *)(p) = BSWAP4(v) #else #define GETU32(p) \ ((uint32_t)(p)[0] << 24 | (uint32_t)(p)[1] << 16 | (uint32_t)(p)[2] << 8 | (uint32_t)(p)[3]) #define PUTU32(p, v) \ ((p)[0] = (uint8_t)((v) >> 24), (p)[1] = (uint8_t)((v) >> 16), \ (p)[2] = (uint8_t)((v) >> 8), (p)[3] = (uint8_t)(v)) #endif /* GCM definitions */ typedef struct { uint64_t hi,lo; } u128; struct gcm128_context { /* Following 6 names follow names in GCM specification */ union { uint64_t u[2]; uint32_t d[4]; uint8_t c[16]; size_t t[16 / sizeof(size_t)]; } Yi, EKi, EK0, len, Xi, H; /* Relative position of Xi, H and pre-computed Htable is used in some * assembler modules, i.e. don't change the order! */ u128 Htable[16]; void (*gmult)(uint64_t Xi[2], const u128 Htable[16]); void (*ghash)(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp, size_t len); unsigned int mres, ares; block128_f block; void *key; }; struct ccm128_context { union { uint64_t u[2]; uint8_t c[16]; } nonce, cmac; uint64_t blocks; block128_f block; void *key; }; #if defined(OPENSSL_X86) || defined(OPENSSL_X86_64) /* crypto_gcm_clmul_enabled returns one if the CLMUL implementation of GCM is * used. */ int crypto_gcm_clmul_enabled(void); #endif #if defined(__cplusplus) } /* extern C */ #endif #endif /* OPENSSL_HEADER_MODES_INTERNAL_H */