132 lines
5.8 KiB
C
132 lines
5.8 KiB
C
/*
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* Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef HEADER_MODES_LCL_H
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#define HEADER_MODES_LCL_H
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#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
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typedef __int64 i64;
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typedef unsigned __int64 u64;
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#define U64(C) C##UI64
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#elif defined(__arch64__)
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typedef long i64;
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typedef unsigned long u64;
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#define U64(C) C##UL
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#else
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typedef long long i64;
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typedef unsigned long long u64;
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#define U64(C) C##ULL
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#endif
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typedef unsigned int u32;
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typedef unsigned char u8;
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#define STRICT_ALIGNMENT 1
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#ifndef PEDANTIC
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#if defined(__i386) || defined(__i386__) || defined(__x86_64) || \
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defined(__x86_64__) || defined(_M_IX86) || defined(_M_AMD64) || \
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defined(_M_X64) || defined(__aarch64__) || defined(__s390__) || \
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defined(__s390x__)
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#undef STRICT_ALIGNMENT
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#endif
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#endif
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#if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && \
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!defined(OPENSSL_NO_INLINE_ASM)
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#if defined(__GNUC__) && __GNUC__ >= 2
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#if defined(__x86_64) || defined(__x86_64__)
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#define BSWAP8(x) \
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({ \
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u64 ret_ = (x); \
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asm("bswapq %0" : "+r"(ret_)); \
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ret_; \
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})
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#define BSWAP4(x) \
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({ \
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u32 ret_ = (x); \
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asm("bswapl %0" : "+r"(ret_)); \
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ret_; \
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})
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#elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)
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#define BSWAP8(x) \
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({ \
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u32 lo_ = (u64)(x) >> 32, hi_ = (x); \
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asm("bswapl %0; bswapl %1" : "+r"(hi_), "+r"(lo_)); \
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(u64) hi_ << 32 | lo_; \
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})
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#define BSWAP4(x) \
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({ \
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u32 ret_ = (x); \
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asm("bswapl %0" : "+r"(ret_)); \
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ret_; \
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})
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#elif defined(__aarch64__)
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#define BSWAP8(x) \
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({ \
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u64 ret_; \
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asm("rev %0,%1" : "=r"(ret_) : "r"(x)); \
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ret_; \
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})
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#define BSWAP4(x) \
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({ \
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u32 ret_; \
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asm("rev %w0,%w1" : "=r"(ret_) : "r"(x)); \
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ret_; \
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})
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#elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT)
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#define BSWAP8(x) \
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({ \
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u32 lo_ = (u64)(x) >> 32, hi_ = (x); \
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asm("rev %0,%0; rev %1,%1" : "+r"(hi_), "+r"(lo_)); \
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(u64) hi_ << 32 | lo_; \
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})
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#define BSWAP4(x) \
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({ \
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u32 ret_; \
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asm("rev %0,%1" : "=r"(ret_) : "r"((u32)(x))); \
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ret_; \
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})
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#endif
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#elif defined(_MSC_VER)
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#if _MSC_VER >= 1300
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#pragma intrinsic(_byteswap_uint64, _byteswap_ulong)
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#define BSWAP8(x) _byteswap_uint64((u64)(x))
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#define BSWAP4(x) _byteswap_ulong((u32)(x))
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#elif defined(_M_IX86)
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__inline u32 _bswap4(u32 val) { _asm mov eax, val _asm bswap eax }
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#define BSWAP4(x) _bswap4(x)
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#endif
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#endif
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#endif
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#if defined(BSWAP4) && !defined(STRICT_ALIGNMENT)
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#define GETU32(p) BSWAP4(*(const u32 *)(p))
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#define PUTU32(p, v) *(u32 *)(p) = BSWAP4(v)
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#else
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#define GETU32(p) \
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((u32)(p)[0] << 24 | (u32)(p)[1] << 16 | (u32)(p)[2] << 8 | (u32)(p)[3])
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#define PUTU32(p, v) \
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((p)[0] = (u8)((v) >> 24), (p)[1] = (u8)((v) >> 16), \
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(p)[2] = (u8)((v) >> 8), (p)[3] = (u8)(v))
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#endif
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/*- GCM definitions */ typedef struct { u64 hi, lo; } u128;
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#ifdef TABLE_BITS
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#undef TABLE_BITS
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#endif
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/*
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* Even though permitted values for TABLE_BITS are 8, 4 and 1, it should
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* never be set to 8 [or 1]. For further information see gcm128.c.
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*/
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#define TABLE_BITS 4
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#ifndef ROL32
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#define ROL32(a, n) (((a) << (n)) | (((a)&0xffffffff) >> (32 - (n))))
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#endif
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#endif
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