mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-14 10:09:48 +00:00
de13c2427d
Reviewed by: allanjude, cem MFC after: 2 months Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D8264
169 lines
5.2 KiB
C
169 lines
5.2 KiB
C
/* $FreeBSD$ */
|
|
#ifndef _SKEIN_PORT_H_
|
|
#define _SKEIN_PORT_H_
|
|
/*******************************************************************
|
|
**
|
|
** Platform-specific definitions for Skein hash function.
|
|
**
|
|
** Source code author: Doug Whiting, 2008.
|
|
**
|
|
** This algorithm and source code is released to the public domain.
|
|
**
|
|
** Many thanks to Brian Gladman for his portable header files.
|
|
**
|
|
** To port Skein to an "unsupported" platform, change the definitions
|
|
** in this file appropriately.
|
|
**
|
|
********************************************************************/
|
|
|
|
#include <sys/endian.h>
|
|
#include <sys/types.h>
|
|
|
|
#ifndef _OPENSOLARIS_SYS_TYPES_H_ /* Avoid redefining this typedef */
|
|
typedef unsigned int uint_t; /* native unsigned integer */
|
|
#endif
|
|
typedef u_int8_t u08b_t; /* 8-bit unsigned integer */
|
|
typedef u_int32_t uint_32t; /* 32-bit unsigned integer */
|
|
typedef u_int64_t u64b_t; /* 64-bit unsigned integer */
|
|
|
|
#ifndef RotL_64
|
|
#define RotL_64(x,N) (((x) << (N)) | ((x) >> (64-(N))))
|
|
#endif
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/*
|
|
* Skein is "natively" little-endian (unlike SHA-xxx), for optimal
|
|
* performance on x86 CPUs. The Skein code requires the following
|
|
* definitions for dealing with endianness:
|
|
*
|
|
* SKEIN_NEED_SWAP: 0 for little-endian, 1 for big-endian
|
|
* Skein_Put64_LSB_First
|
|
* Skein_Get64_LSB_First
|
|
* Skein_Swap64
|
|
*
|
|
* If SKEIN_NEED_SWAP is defined at compile time, it is used here
|
|
* along with the portable versions of Put64/Get64/Swap64, which
|
|
* are slow in general.
|
|
*
|
|
* Otherwise, an "auto-detect" of endianness is attempted below.
|
|
* If the default handling doesn't work well, the user may insert
|
|
* platform-specific code instead (e.g., for big-endian CPUs).
|
|
*
|
|
*/
|
|
#ifndef SKEIN_NEED_SWAP /* compile-time "override" for endianness? */
|
|
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
/* here for big-endian CPUs */
|
|
#define SKEIN_NEED_SWAP (1)
|
|
#ifdef SKEIN_PORT_CODE
|
|
void Skein_Put64_LSB_First(u08b_t *dst,const u64b_t *src,size_t bCnt);
|
|
void Skein_Get64_LSB_First(u64b_t *dst,const u08b_t *src,size_t wCnt);
|
|
#endif /* ifdef SKEIN_PORT_CODE */
|
|
#elif BYTE_ORDER == LITTLE_ENDIAN
|
|
/* here for x86 and x86-64 CPUs (and other detected little-endian CPUs) */
|
|
#define SKEIN_NEED_SWAP (0)
|
|
#define Skein_Put64_LSB_First(dst08,src64,bCnt) memcpy(dst08,src64,bCnt)
|
|
#define Skein_Get64_LSB_First(dst64,src08,wCnt) memcpy(dst64,src08,8*(wCnt))
|
|
#else
|
|
#error "Skein needs endianness setting!"
|
|
#endif
|
|
|
|
#endif /* ifndef SKEIN_NEED_SWAP */
|
|
|
|
/*
|
|
******************************************************************
|
|
* Provide any definitions still needed.
|
|
******************************************************************
|
|
*/
|
|
#ifndef Skein_Swap64 /* swap for big-endian, nop for little-endian */
|
|
#if SKEIN_NEED_SWAP
|
|
#define Skein_Swap64(w64) bswap64(w64)
|
|
#else
|
|
#define Skein_Swap64(w64) (w64)
|
|
#endif
|
|
#endif /* ifndef Skein_Swap64 */
|
|
|
|
|
|
#ifndef Skein_Put64_LSB_First
|
|
void Skein_Put64_LSB_First(u08b_t *dst,const u64b_t *src,size_t bCnt)
|
|
#ifdef SKEIN_PORT_CODE /* instantiate the function code here? */
|
|
{
|
|
size_t n;
|
|
|
|
for (n = 0; n < bCnt / 8; n++)
|
|
le64enc(dst + n * 8, src[n]);
|
|
}
|
|
#else
|
|
; /* output only the function prototype */
|
|
#endif
|
|
#endif /* ifndef Skein_Put64_LSB_First */
|
|
|
|
|
|
#ifndef Skein_Get64_LSB_First
|
|
void Skein_Get64_LSB_First(u64b_t *dst,const u08b_t *src,size_t wCnt)
|
|
#ifdef SKEIN_PORT_CODE /* instantiate the function code here? */
|
|
{
|
|
size_t n;
|
|
|
|
for (n = 0; n < wCnt; n++)
|
|
dst[n] = le64dec(src + n * 8);
|
|
}
|
|
#else
|
|
; /* output only the function prototype */
|
|
#endif
|
|
#endif /* ifndef Skein_Get64_LSB_First */
|
|
|
|
/* Start FreeBSD libmd shims */
|
|
|
|
/* Ensure libmd symbols do not clash with libcrypto */
|
|
#ifndef SKEIN256_Init
|
|
#define SKEIN256_Init _libmd_SKEIN256_Init
|
|
#define SKEIN512_Init _libmd_SKEIN512_Init
|
|
#define SKEIN1024_Init _libmd_SKEIN1024_Init
|
|
#endif
|
|
#ifndef SKEIN256_Update
|
|
#define SKEIN256_Update _libmd_SKEIN256_Update
|
|
#define SKEIN512_Update _libmd_SKEIN512_Update
|
|
#define SKEIN1024_Update _libmd_SKEIN1024_Update
|
|
#endif
|
|
#ifndef SKEIN256_Final
|
|
#define SKEIN256_Final _libmd_SKEIN256_Final
|
|
#define SKEIN512_Final _libmd_SKEIN512_Final
|
|
#define SKEIN1024_Final _libmd_SKEIN1024_Final
|
|
#endif
|
|
#ifndef SKEIN256_End
|
|
#define SKEIN256_End _libmd_SKEIN256_End
|
|
#define SKEIN512_End _libmd_SKEIN512_End
|
|
#define SKEIN1024_End _libmd_SKEIN1024_End
|
|
#endif
|
|
#ifndef SKEIN256_Fd
|
|
#define SKEIN256_Fd _libmd_SKEIN256_Fd
|
|
#define SKEIN512_Fd _libmd_SKEIN512_Fd
|
|
#define SKEIN1024_Fd _libmd_SKEIN1024_Fd
|
|
#endif
|
|
#ifndef SKEIN256_FdChunk
|
|
#define SKEIN256_FdChunk _libmd_SKEIN256_FdChunk
|
|
#define SKEIN512_FdChunk _libmd_SKEIN512_FdChunk
|
|
#define SKEIN1024_FdChunk _libmd_SKEIN1024_FdChunk
|
|
#endif
|
|
#ifndef SKEIN256_File
|
|
#define SKEIN256_File _libmd_SKEIN256_File
|
|
#define SKEIN512_File _libmd_SKEIN512_File
|
|
#define SKEIN1024_File _libmd_SKEIN1024_File
|
|
#endif
|
|
#ifndef SKEIN256_FileChunk
|
|
#define SKEIN256_FileChunk _libmd_SKEIN256_FileChunk
|
|
#define SKEIN512_FileChunk _libmd_SKEIN512_FileChunk
|
|
#define SKEIN1024_FileChunk _libmd_SKEIN1024_FileChunk
|
|
#endif
|
|
#ifndef SKEIN256_Data
|
|
#define SKEIN256_Data _libmd_SKEIN256_Data
|
|
#define SKEIN512_Data _libmd_SKEIN512_Data
|
|
#define SKEIN1024_Data _libmd_SKEIN1024_Data
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* ifndef _SKEIN_PORT_H_ */
|