ddcb00676a
This commit removes a warning message regarding the potential misuse of macros within the `ecrypt-portable.h` file. The message cautioned against using the macros in scenarios where side effects were intended, highlighting the importance of careful usage. The warning was deemed overly restrictive and has been removed to allow for greater flexibility in how the macros are utilized, while still encouraging awareness of their specific behavior.
294 lines
7.2 KiB
C
294 lines
7.2 KiB
C
/* ecrypt-portable.h */
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/*
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* *** Please do not edit this file. ***
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*
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* The default macros can be overridden for specific architectures by
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* editing 'ecrypt-machine.h'.
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*/
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#ifndef ECRYPT_PORTABLE
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#define ECRYPT_PORTABLE
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#include "ecrypt-config.h"
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/* ------------------------------------------------------------------------- */
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/*
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* The following types are defined (if available):
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*
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* u8: quint32eger type, at least 8 bits
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* u16: quint32eger type, at least 16 bits
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* u32: quint32eger type, at least 32 bits
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* u64: quint32eger type, at least 64 bits
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*
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* s8, s16, s32, s64 -> signed counterparts of u8, u16, u32, u64
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*
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* The selection of minimum-width integer types is taken care of by
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* 'ecrypt-config.h'. Note: to enable 64-bit types on 32-bit
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* compilers, it might be necessary to switch from ISO C90 mode to ISO
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* C99 mode (e.g., gcc -std=c99).
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*/
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#ifdef I8T
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typedef signed I8T s8;
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typedef unsigned I8T u8;
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#endif
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#ifdef I16T
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typedef signed I16T s16;
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typedef unsigned I16T u16;
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#endif
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#ifdef I32T
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typedef signed I32T s32;
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typedef unsigned I32T u32;
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#endif
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#ifdef I64T
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typedef signed I64T s64;
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typedef unsigned I64T u64;
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#endif
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/*
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* The following macros are used to obtain exact-width results.
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*/
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#define U8V(v) ((u8)(v) & U8C(0xFF))
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#define U16V(v) ((u16)(v) & U16C(0xFFFF))
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#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
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#define U64V(v) ((u64)(v) & U64C(0xFFFFFFFFFFFFFFFF))
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/* ------------------------------------------------------------------------- */
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/*
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* The following macros return words with their bits rotated over n
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* positions to the left/right.
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*/
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#define ECRYPT_DEFAULT_ROT
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#define ROTL8(v, n) \
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(U8V((v) << (n)) | ((v) >> (8 - (n))))
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#define ROTL16(v, n) \
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(U16V((v) << (n)) | ((v) >> (16 - (n))))
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#define ROTL32(v, n) \
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(U32V((v) << (n)) | ((v) >> (32 - (n))))
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#define ROTL64(v, n) \
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(U64V((v) << (n)) | ((v) >> (64 - (n))))
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#define ROTR8(v, n) ROTL8(v, 8 - (n))
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#define ROTR16(v, n) ROTL16(v, 16 - (n))
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#define ROTR32(v, n) ROTL32(v, 32 - (n))
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#define ROTR64(v, n) ROTL64(v, 64 - (n))
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#include "ecrypt-machine.h"
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/* ------------------------------------------------------------------------- */
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/*
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* The following macros return a word with bytes in reverse order.
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*/
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#define ECRYPT_DEFAULT_SWAP
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#define SWAP16(v) \
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ROTL16(v, 8)
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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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#ifdef ECRYPT_NATIVE64
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#define SWAP64(v) \
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((ROTL64(v, 8) & U64C(0x000000FF000000FF)) | \
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(ROTL64(v, 24) & U64C(0x0000FF000000FF00)) | \
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(ROTL64(v, 40) & U64C(0x00FF000000FF0000)) | \
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(ROTL64(v, 56) & U64C(0xFF000000FF000000)))
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#else
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#define SWAP64(v) \
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(((u64)SWAP32(U32V(v)) << 32) | (u64)SWAP32(U32V(v >> 32)))
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#endif
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#include "ecrypt-machine.h"
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#define ECRYPT_DEFAULT_WTOW
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#ifdef ECRYPT_LITTLE_ENDIAN
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#define U16TO16_LITTLE(v) (v)
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#define U32TO32_LITTLE(v) (v)
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#define U64TO64_LITTLE(v) (v)
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#define U16TO16_BIG(v) SWAP16(v)
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#define U32TO32_BIG(v) SWAP32(v)
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#define U64TO64_BIG(v) SWAP64(v)
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#endif
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#ifdef ECRYPT_BIG_ENDIAN
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#define U16TO16_LITTLE(v) SWAP16(v)
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#define U32TO32_LITTLE(v) SWAP32(v)
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#define U64TO64_LITTLE(v) SWAP64(v)
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#define U16TO16_BIG(v) (v)
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#define U32TO32_BIG(v) (v)
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#define U64TO64_BIG(v) (v)
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#endif
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#include "ecrypt-machine.h"
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/*
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* The following macros load words from an array of bytes with
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* different types of endianness, and vice versa.
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*/
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#define ECRYPT_DEFAULT_BTOW
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#if (!defined(ECRYPT_UNKNOWN) && defined(ECRYPT_I8T_IS_BYTE))
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#define U8TO16_LITTLE(p) U16TO16_LITTLE(((u16*)(p))[0])
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#define U8TO32_LITTLE(p) U32TO32_LITTLE(((u32*)(p))[0])
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#define U8TO64_LITTLE(p) U64TO64_LITTLE(((u64*)(p))[0])
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#define U8TO16_BIG(p) U16TO16_BIG(((u16*)(p))[0])
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#define U8TO32_BIG(p) U32TO32_BIG(((u32*)(p))[0])
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#define U8TO64_BIG(p) U64TO64_BIG(((u64*)(p))[0])
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#define U16TO8_LITTLE(p, v) (((u16*)(p))[0] = U16TO16_LITTLE(v))
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#define U32TO8_LITTLE(p, v) (((u32*)(p))[0] = U32TO32_LITTLE(v))
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#define U64TO8_LITTLE(p, v) (((u64*)(p))[0] = U64TO64_LITTLE(v))
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#define U16TO8_BIG(p, v) (((u16*)(p))[0] = U16TO16_BIG(v))
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#define U32TO8_BIG(p, v) (((u32*)(p))[0] = U32TO32_BIG(v))
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#define U64TO8_BIG(p, v) (((u64*)(p))[0] = U64TO64_BIG(v))
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#else
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#define U8TO16_LITTLE(p) \
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(((u16)((p)[0]) ) | \
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((u16)((p)[1]) << 8))
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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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#ifdef ECRYPT_NATIVE64
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#define U8TO64_LITTLE(p) \
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(((u64)((p)[0]) ) | \
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((u64)((p)[1]) << 8) | \
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((u64)((p)[2]) << 16) | \
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((u64)((p)[3]) << 24) | \
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((u64)((p)[4]) << 32) | \
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((u64)((p)[5]) << 40) | \
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((u64)((p)[6]) << 48) | \
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((u64)((p)[7]) << 56))
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#else
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#define U8TO64_LITTLE(p) \
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((u64)U8TO32_LITTLE(p) | ((u64)U8TO32_LITTLE((p) + 4) << 32))
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#endif
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#define U8TO16_BIG(p) \
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(((u16)((p)[0]) << 8) | \
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((u16)((p)[1]) ))
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#define U8TO32_BIG(p) \
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(((u32)((p)[0]) << 24) | \
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((u32)((p)[1]) << 16) | \
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((u32)((p)[2]) << 8) | \
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((u32)((p)[3]) ))
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#ifdef ECRYPT_NATIVE64
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#define U8TO64_BIG(p) \
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(((u64)((p)[0]) << 56) | \
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((u64)((p)[1]) << 48) | \
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((u64)((p)[2]) << 40) | \
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((u64)((p)[3]) << 32) | \
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((u64)((p)[4]) << 24) | \
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((u64)((p)[5]) << 16) | \
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((u64)((p)[6]) << 8) | \
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((u64)((p)[7]) ))
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#else
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#define U8TO64_BIG(p) \
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(((u64)U8TO32_BIG(p) << 32) | (u64)U8TO32_BIG((p) + 4))
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#endif
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#define U16TO8_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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} while (0)
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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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#ifdef ECRYPT_NATIVE64
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#define U64TO8_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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(p)[4] = U8V((v) >> 32); \
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(p)[5] = U8V((v) >> 40); \
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(p)[6] = U8V((v) >> 48); \
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(p)[7] = U8V((v) >> 56); \
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} while (0)
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#else
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#define U64TO8_LITTLE(p, v) \
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do { \
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U32TO8_LITTLE((p), U32V((v) )); \
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U32TO8_LITTLE((p) + 4, U32V((v) >> 32)); \
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} while (0)
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#endif
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#define U16TO8_BIG(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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} while (0)
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#define U32TO8_BIG(p, v) \
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do { \
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(p)[0] = U8V((v) >> 24); \
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(p)[1] = U8V((v) >> 16); \
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(p)[2] = U8V((v) >> 8); \
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(p)[3] = U8V((v) ); \
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} while (0)
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#ifdef ECRYPT_NATIVE64
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#define U64TO8_BIG(p, v) \
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do { \
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(p)[0] = U8V((v) >> 56); \
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(p)[1] = U8V((v) >> 48); \
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(p)[2] = U8V((v) >> 40); \
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(p)[3] = U8V((v) >> 32); \
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(p)[4] = U8V((v) >> 24); \
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(p)[5] = U8V((v) >> 16); \
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(p)[6] = U8V((v) >> 8); \
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(p)[7] = U8V((v) ); \
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} while (0)
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#else
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#define U64TO8_BIG(p, v) \
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do { \
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U32TO8_BIG((p), U32V((v) >> 32)); \
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U32TO8_BIG((p) + 4, U32V((v) )); \
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} while (0)
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#endif
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#endif
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#include "ecrypt-machine.h"
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/* ------------------------------------------------------------------------- */
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#endif
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