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ff62d93b0e
Libottery itself is hosted here: https://github.com/nmathewson/libottery This import is a rough adoptation of libottery to use it for secure random numbers in rspamd when needed (and in DNS resolver specifically). This import makes the internal chacha20 code useless, hence it is removed now.
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/* Definitions for types and macros used in chacha_merged.c. Taken from
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* supercop.
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*/
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#include <limits.h>
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typedef struct
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{
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u32 input[16]; /* could be compressed */
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/*
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* [edit]
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*
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* Put here all state variable needed during the encryption process.
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*/
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} ECRYPT_ctx;
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#if (UCHAR_MAX / 0xFFFFU > 0xFFFFU)
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#ifndef I32T
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#define I32T char
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#define U32C(v) (v##U)
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#endif
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#endif
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#if (USHRT_MAX / 0xFFFFU > 0xFFFFU)
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#ifndef I32T
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#define I32T short
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#define U32C(v) (v##U)
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#endif
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#endif
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#if (UINT_MAX / 0xFFFFU > 0xFFFFU)
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#ifndef I32T
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#define I32T int
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#define U32C(v) (v##U)
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#endif
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#endif
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#if (ULONG_MAX / 0xFFFFUL > 0xFFFFUL)
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#ifndef I32T
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#define I32T long
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#define U32C(v) (v##UL)
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#endif
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#endif
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#define U8C(v) (v ## U)
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#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
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#define U8V(v) ((u8)(v) & U8C(0xFF))
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#if (defined(WIN32) && defined(_MSC_VER))
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#include <stdlib.h>
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#pragma intrinsic(_lrotl) /* compile rotations "inline" */
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#define ROTL32(v, n) _lrotl(v, n)
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#else
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#define ROTL32(v, n) \
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(U32V((v) << (n)) | ((v) >> (32 - (n))))
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#endif
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#if ECRYPT_LITTLE_ENDIAN
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#define U32TO32_LITTLE(v) (v)
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#endif
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#ifdef ECRYPT_BIG_ENDIAN
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#define SWAP32(v) \
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((ROTL32(v, 8) & U32C(0x00FF00FF)) | \
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(ROTL32(v, 24) & U32C(0xFF00FF00)))
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#define U32TO32_LITTLE(v) SWAP32(v)
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#endif
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#ifdef U32TO32_LITTLE
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#define U8TO32_LITTLE(p) U32TO32_LITTLE(((u32*)(p))[0])
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#define U32TO8_LITTLE(p, v) (((u32*)(p))[0] = U32TO32_LITTLE(v))
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#else
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#define U8TO32_LITTLE(p) \
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(((u32)((p)[0]) ) | \
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((u32)((p)[1]) << 8) | \
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((u32)((p)[2]) << 16) | \
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((u32)((p)[3]) << 24))
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#define U32TO8_LITTLE(p, v) \
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do { \
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(p)[0] = U8V((v) ); \
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(p)[1] = U8V((v) >> 8); \
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(p)[2] = U8V((v) >> 16); \
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(p)[3] = U8V((v) >> 24); \
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} while (0)
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#endif
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/*
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* The LITTLE endian machines:
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*/
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#if defined(__ultrix) /* Older MIPS */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(__alpha) /* Alpha */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(i386) /* x86 (gcc) */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(__i386) /* x86 (gcc) */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(__x86_64) /* x86_64 (gcc) */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(_M_IX86) /* x86 (MSC, Borland) */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(_MSC_VER) /* x86 (surely MSC) */
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#define ECRYPT_LITTLE_ENDIAN
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#elif defined(__INTEL_COMPILER) /* x86 (surely Intel compiler icl.exe) */
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#define ECRYPT_LITTLE_ENDIAN
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/*
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* The BIG endian machines:
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*/
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#elif defined(__sparc) /* Newer Sparc's */
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#define ECRYPT_BIG_ENDIAN
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#elif defined(__powerpc__) /* PowerPC */
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#define ECRYPT_BIG_ENDIAN
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#elif defined(__ppc__) /* PowerPC */
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#define ECRYPT_BIG_ENDIAN
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#elif defined(__hppa) /* HP-PA */
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#define ECRYPT_BIG_ENDIAN
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/*
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* Finally machines with UNKNOWN endianness:
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*/
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#elif defined (_AIX) /* RS6000 */
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#define ECRYPT_UNKNOWN
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#elif defined(__aux) /* 68K */
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#define ECRYPT_UNKNOWN
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#elif defined(__dgux) /* 88K (but P6 in latest boxes) */
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#define ECRYPT_UNKNOWN
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#elif defined(__sgi) /* Newer MIPS */
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#define ECRYPT_UNKNOWN
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#else /* Any other processor */
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#define ECRYPT_UNKNOWN
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#endif
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