| /* ==================================================================== |
| * 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 <openssl/base.h> |
| |
| #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 <intrin.h> |
| #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 xts128_context { |
| void *key1, *key2; |
| block128_f block1, block2; |
| }; |
| |
| 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 */ |
