306 lines
9.6 KiB
C
306 lines
9.6 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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/* This is the build config file.
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*
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* With this you can setup what to inlcude/exclude automatically during any build. Just comment
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* out the line that #define's the word for the thing you want to remove. phew!
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*/
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#ifndef TOMCRYPT_CFG_H
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#define TOMCRYPT_CFG_H
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#if defined(_WIN32) || defined(_MSC_VER)
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#define LTC_CALL __cdecl
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#elif !defined(LTC_CALL)
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#define LTC_CALL
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#endif
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#ifndef LTC_EXPORT
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#define LTC_EXPORT
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#endif
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/* certain platforms use macros for these, making the prototypes broken */
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#ifndef LTC_NO_PROTOTYPES
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/* you can change how memory allocation works ... */
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LTC_EXPORT void * LTC_CALL XMALLOC(size_t n);
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LTC_EXPORT void * LTC_CALL XREALLOC(void *p, size_t n);
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LTC_EXPORT void * LTC_CALL XCALLOC(size_t n, size_t s);
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LTC_EXPORT void LTC_CALL XFREE(void *p);
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LTC_EXPORT void LTC_CALL XQSORT(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *));
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/* change the clock function too */
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LTC_EXPORT clock_t LTC_CALL XCLOCK(void);
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/* various other functions */
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LTC_EXPORT void * LTC_CALL XMEMCPY(void *dest, const void *src, size_t n);
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LTC_EXPORT int LTC_CALL XMEMCMP(const void *s1, const void *s2, size_t n);
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LTC_EXPORT void * LTC_CALL XMEMSET(void *s, int c, size_t n);
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LTC_EXPORT int LTC_CALL XSTRCMP(const char *s1, const char *s2);
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#endif
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/* some compilers do not like "inline" (or maybe "static inline"), namely: HP cc, IBM xlc */
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#if defined(__GNUC__) || defined(__xlc__)
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#define LTC_INLINE __inline__
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#elif defined(_MSC_VER) || defined(__HP_cc)
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#define LTC_INLINE __inline
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#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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#define LTC_INLINE inline
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#else
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#define LTC_INLINE
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#endif
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#if defined(__clang__) || defined(__GNUC_MINOR__)
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#define LTC_NORETURN __attribute__ ((noreturn))
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#elif defined(_MSC_VER)
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#define LTC_NORETURN __declspec(noreturn)
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#else
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#define LTC_NORETURN
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#endif
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/* type of argument checking, 0=default, 1=fatal and 2=error+continue, 3=nothing */
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#ifndef ARGTYPE
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#define ARGTYPE 0
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#endif
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#undef LTC_ENCRYPT
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#define LTC_ENCRYPT 0
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#undef LTC_DECRYPT
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#define LTC_DECRYPT 1
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/* Controls endianess and size of registers. Leave uncommented to get platform neutral [slower] code
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*
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* Note: in order to use the optimized macros your platform must support unaligned 32 and 64 bit read/writes.
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* The x86 platforms allow this but some others [ARM for instance] do not. On those platforms you **MUST**
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* use the portable [slower] macros.
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*/
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/* detect x86/i386 32bit */
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#if defined(__i386__) || defined(__i386) || defined(_M_IX86)
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#define ENDIAN_LITTLE
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#define ENDIAN_32BITWORD
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#define LTC_FAST
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#endif
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/* detect amd64/x64 */
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#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
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#define ENDIAN_LITTLE
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#define ENDIAN_64BITWORD
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#define LTC_FAST
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#endif
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/* detect PPC32 */
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#if defined(LTC_PPC32)
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#define ENDIAN_BIG
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#define ENDIAN_32BITWORD
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#define LTC_FAST
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#endif
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/* detects MIPS R5900 processors (PS2) */
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#if (defined(__R5900) || defined(R5900) || defined(__R5900__)) && (defined(_mips) || defined(__mips__) || defined(mips))
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#define ENDIAN_64BITWORD
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#if defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
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#define ENDIAN_BIG
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#endif
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#define ENDIAN_LITTLE
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#endif
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#endif
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/* detect AIX */
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#if defined(_AIX) && defined(_BIG_ENDIAN)
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#define ENDIAN_BIG
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#if defined(__LP64__) || defined(_ARCH_PPC64)
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#define ENDIAN_64BITWORD
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#else
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#define ENDIAN_32BITWORD
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#endif
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#endif
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/* detect HP-UX */
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#if defined(__hpux) || defined(__hpux__)
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#define ENDIAN_BIG
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#if defined(__ia64) || defined(__ia64__) || defined(__LP64__)
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#define ENDIAN_64BITWORD
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#else
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#define ENDIAN_32BITWORD
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#endif
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#endif
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/* detect Apple OS X */
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#if defined(__APPLE__) && defined(__MACH__)
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#if defined(__LITTLE_ENDIAN__) || defined(__x86_64__)
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#define ENDIAN_LITTLE
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#else
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#define ENDIAN_BIG
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#endif
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#if defined(__LP64__) || defined(__x86_64__)
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#define ENDIAN_64BITWORD
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#else
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#define ENDIAN_32BITWORD
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#endif
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#endif
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/* detect SPARC and SPARC64 */
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#if defined(__sparc__) || defined(__sparc)
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#define ENDIAN_BIG
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#if defined(__arch64__) || defined(__sparcv9) || defined(__sparc_v9__)
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#define ENDIAN_64BITWORD
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#else
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#define ENDIAN_32BITWORD
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#endif
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#endif
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/* detect IBM S390(x) */
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#if defined(__s390x__) || defined(__s390__)
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#define ENDIAN_BIG
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#if defined(__s390x__)
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#define ENDIAN_64BITWORD
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#else
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#define ENDIAN_32BITWORD
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#endif
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#endif
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/* detect PPC64 */
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#if defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
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#define ENDIAN_64BITWORD
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#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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#define ENDIAN_BIG
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#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define ENDIAN_LITTLE
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#endif
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#define LTC_FAST
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#endif
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/* endianness fallback */
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#if !defined(ENDIAN_BIG) && !defined(ENDIAN_LITTLE)
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#if defined(_BYTE_ORDER) && _BYTE_ORDER == _BIG_ENDIAN || \
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defined(__BYTE_ORDER) && __BYTE_ORDER == __BIG_ENDIAN || \
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defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ || \
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defined(__BIG_ENDIAN__) || \
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defined(__ARMEB__) || defined(__THUMBEB__) || defined(__AARCH64EB__) || \
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defined(_MIPSEB) || defined(__MIPSEB) || defined(__MIPSEB__)
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#define ENDIAN_BIG
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#elif defined(_BYTE_ORDER) && _BYTE_ORDER == _LITTLE_ENDIAN || \
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defined(__BYTE_ORDER) && __BYTE_ORDER == __LITTLE_ENDIAN || \
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defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ || \
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defined(__LITTLE_ENDIAN__) || \
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defined(__ARMEL__) || defined(__THUMBEL__) || defined(__AARCH64EL__) || \
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defined(_MIPSEL) || defined(__MIPSEL) || defined(__MIPSEL__)
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#define ENDIAN_LITTLE
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#else
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#error Cannot detect endianness
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#endif
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#endif
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/* ulong64: 64-bit data type */
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#ifdef _MSC_VER
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#define CONST64(n) n ## ui64
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typedef unsigned __int64 ulong64;
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typedef __int64 long64;
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#else
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#define CONST64(n) n ## ULL
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typedef unsigned long long ulong64;
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typedef long long long64;
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#endif
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/* ulong32: "32-bit at least" data type */
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#if defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64) || \
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defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \
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defined(__s390x__) || defined(__arch64__) || defined(__aarch64__) || \
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defined(__sparcv9) || defined(__sparc_v9__) || defined(__sparc64__) || \
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defined(__ia64) || defined(__ia64__) || defined(__itanium__) || defined(_M_IA64) || \
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defined(__LP64__) || defined(_LP64) || defined(__64BIT__)
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typedef unsigned ulong32;
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#if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
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#define ENDIAN_64BITWORD
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#endif
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#else
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typedef unsigned long ulong32;
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#if !defined(ENDIAN_64BITWORD) && !defined(ENDIAN_32BITWORD)
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#define ENDIAN_32BITWORD
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#endif
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#endif
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#if defined(ENDIAN_64BITWORD) && !defined(_MSC_VER)
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typedef unsigned long long ltc_mp_digit;
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#else
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typedef unsigned long ltc_mp_digit;
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#endif
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/* No asm is a quick way to disable anything "not portable" */
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#ifdef LTC_NO_ASM
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#define ENDIAN_NEUTRAL
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#undef ENDIAN_32BITWORD
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#undef ENDIAN_64BITWORD
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#undef LTC_FAST
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#define LTC_NO_BSWAP
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#define LTC_NO_ROLC
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#define LTC_NO_ROTATE
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#endif
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/* No LTC_FAST if: explicitly disabled OR non-gcc/non-clang compiler OR old gcc OR using -ansi -std=c99 */
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#if defined(LTC_NO_FAST) || (__GNUC__ < 4) || defined(__STRICT_ANSI__)
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#undef LTC_FAST
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#endif
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#ifdef LTC_FAST
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#define LTC_FAST_TYPE_PTR_CAST(x) ((LTC_FAST_TYPE*)(void*)(x))
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#ifdef ENDIAN_64BITWORD
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typedef ulong64 __attribute__((__may_alias__)) LTC_FAST_TYPE;
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#else
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typedef ulong32 __attribute__((__may_alias__)) LTC_FAST_TYPE;
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#endif
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#endif
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#if !defined(ENDIAN_NEUTRAL) && (defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE)) && !(defined(ENDIAN_32BITWORD) || defined(ENDIAN_64BITWORD))
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#error You must specify a word size as well as endianess in tomcrypt_cfg.h
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#endif
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#if !(defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE))
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#define ENDIAN_NEUTRAL
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#endif
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#if (defined(ENDIAN_32BITWORD) && defined(ENDIAN_64BITWORD))
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#error Cannot be 32 and 64 bit words...
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#endif
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/* gcc 4.3 and up has a bswap builtin; detect it by gcc version.
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* clang also supports the bswap builtin, and although clang pretends
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* to be gcc (macro-wise, anyway), clang pretends to be a version
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* prior to gcc 4.3, so we can't detect bswap that way. Instead,
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* clang has a __has_builtin mechanism that can be used to check
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* for builtins:
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* http://clang.llvm.org/docs/LanguageExtensions.html#feature_check */
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#ifndef __has_builtin
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#define __has_builtin(x) 0
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#endif
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#if !defined(LTC_NO_BSWAP) && defined(__GNUC__) && \
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((__GNUC__ * 100 + __GNUC_MINOR__ >= 403) || \
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(__has_builtin(__builtin_bswap32) && __has_builtin(__builtin_bswap64)))
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#define LTC_HAVE_BSWAP_BUILTIN
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#endif
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#if !defined(LTC_NO_ROTATE) && (__has_builtin(__builtin_rotateleft32) && __has_builtin(__builtin_rotateright32))
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#define LTC_HAVE_ROTATE_BUILTIN
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#endif
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#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 405)
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# define LTC_DEPRECATED(s) __attribute__((deprecated("replaced by " #s)))
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# define PRIVATE_LTC_DEPRECATED_PRAGMA(s) _Pragma(#s)
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# define LTC_DEPRECATED_PRAGMA(s) PRIVATE_LTC_DEPRECATED_PRAGMA(GCC warning s)
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#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 301)
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# define LTC_DEPRECATED(s) __attribute__((deprecated))
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# define LTC_DEPRECATED_PRAGMA(s)
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#elif defined(_MSC_VER) && _MSC_VER >= 1500
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/* supported since Visual Studio 2008 */
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# define LTC_DEPRECATED(s) __declspec(deprecated("replaced by " #s))
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# define LTC_DEPRECATED_PRAGMA(s) __pragma(message(s))
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#else
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# define LTC_DEPRECATED(s)
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# define LTC_DEPRECATED_PRAGMA(s)
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#endif
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