0144ad3e78
Support for the new hashing algorithms in ZFS was introduced in r289422 However it was disconnected because FreeBSD lacked implementations of SHA-512 (truncated to 256 bits), and Skein. These implementations were introduced in r300921 and r300966 respectively This commit connects them to ZFS and enabled these new checksum algorithms This new algorithms are not supported by the boot blocks, so do not use them on your root dataset if you boot from ZFS. Relnotes: yes Sponsored by: ScaleEngine Inc.
159 lines
4.9 KiB
C
159 lines
4.9 KiB
C
/* $FreeBSD$ */
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#ifndef _SKEIN_PORT_H_
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#define _SKEIN_PORT_H_
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/*******************************************************************
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**
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** Platform-specific definitions for Skein hash function.
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**
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** Source code author: Doug Whiting, 2008.
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**
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** This algorithm and source code is released to the public domain.
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**
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** Many thanks to Brian Gladman for his portable header files.
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**
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** To port Skein to an "unsupported" platform, change the definitions
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** in this file appropriately.
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**
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********************************************************************/
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#include <sys/endian.h>
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#include <sys/types.h>
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#ifndef _OPENSOLARIS_SYS_TYPES_H_ /* Avoid redefining this typedef */
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typedef unsigned int uint_t; /* native unsigned integer */
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#endif
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typedef u_int8_t u08b_t; /* 8-bit unsigned integer */
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typedef u_int32_t uint_32t; /* 32-bit unsigned integer */
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typedef u_int64_t u64b_t; /* 64-bit unsigned integer */
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#ifndef RotL_64
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#define RotL_64(x,N) (((x) << (N)) | ((x) >> (64-(N))))
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#endif
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__BEGIN_DECLS
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/*
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* Skein is "natively" little-endian (unlike SHA-xxx), for optimal
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* performance on x86 CPUs. The Skein code requires the following
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* definitions for dealing with endianness:
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*
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* SKEIN_NEED_SWAP: 0 for little-endian, 1 for big-endian
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* Skein_Put64_LSB_First
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* Skein_Get64_LSB_First
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* Skein_Swap64
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*
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* If SKEIN_NEED_SWAP is defined at compile time, it is used here
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* along with the portable versions of Put64/Get64/Swap64, which
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* are slow in general.
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*
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* Otherwise, an "auto-detect" of endianness is attempted below.
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* If the default handling doesn't work well, the user may insert
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* platform-specific code instead (e.g., for big-endian CPUs).
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*
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*/
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#ifndef SKEIN_NEED_SWAP /* compile-time "override" for endianness? */
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#if BYTE_ORDER == BIG_ENDIAN
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/* here for big-endian CPUs */
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#define SKEIN_NEED_SWAP (1)
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#ifdef SKEIN_PORT_CODE
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void Skein_Put64_LSB_First(u08b_t *dst,const u64b_t *src,size_t bCnt);
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void Skein_Get64_LSB_First(u64b_t *dst,const u08b_t *src,size_t wCnt);
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#endif /* ifdef SKEIN_PORT_CODE */
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#elif BYTE_ORDER == LITTLE_ENDIAN
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/* here for x86 and x86-64 CPUs (and other detected little-endian CPUs) */
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#define SKEIN_NEED_SWAP (0)
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#define Skein_Put64_LSB_First(dst08,src64,bCnt) memcpy(dst08,src64,bCnt)
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#define Skein_Get64_LSB_First(dst64,src08,wCnt) memcpy(dst64,src08,8*(wCnt))
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#else
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#error "Skein needs endianness setting!"
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#endif
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#endif /* ifndef SKEIN_NEED_SWAP */
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/*
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******************************************************************
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* Provide any definitions still needed.
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******************************************************************
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*/
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#ifndef Skein_Swap64 /* swap for big-endian, nop for little-endian */
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#if SKEIN_NEED_SWAP
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#define Skein_Swap64(w64) bswap64(w64)
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#else
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#define Skein_Swap64(w64) (w64)
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#endif
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#endif /* ifndef Skein_Swap64 */
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#ifndef Skein_Put64_LSB_First
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void Skein_Put64_LSB_First(u08b_t *dst,const u64b_t *src,size_t bCnt)
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#ifdef SKEIN_PORT_CODE /* instantiate the function code here? */
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{
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size_t n;
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for (n = 0; n < bCnt / 8; n++)
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le64enc(dst + n * 8, src[n]);
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}
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#else
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; /* output only the function prototype */
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#endif
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#endif /* ifndef Skein_Put64_LSB_First */
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#ifndef Skein_Get64_LSB_First
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void Skein_Get64_LSB_First(u64b_t *dst,const u08b_t *src,size_t wCnt)
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#ifdef SKEIN_PORT_CODE /* instantiate the function code here? */
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{
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size_t n;
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for (n = 0; n < wCnt; n++)
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dst[n] = le64dec(src + n * 8);
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}
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#else
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; /* output only the function prototype */
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#endif
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#endif /* ifndef Skein_Get64_LSB_First */
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/* Start FreeBSD libmd shims */
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/* Ensure libmd symbols do not clash with libcrypto */
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#ifndef SKEIN256_Init
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#define SKEIN256_Init _libmd_SKEIN256_Init
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#define SKEIN512_Init _libmd_SKEIN512_Init
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#define SKEIN1024_Init _libmd_SKEIN1024_Init
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#endif
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#ifndef SKEIN256_Update
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#define SKEIN256_Update _libmd_SKEIN256_Update
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#define SKEIN512_Update _libmd_SKEIN512_Update
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#define SKEIN1024_Update _libmd_SKEIN1024_Update
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#endif
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#ifndef SKEIN256_Final
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#define SKEIN256_Final _libmd_SKEIN256_Final
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#define SKEIN512_Final _libmd_SKEIN512_Final
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#define SKEIN1024_Final _libmd_SKEIN1024_Final
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#endif
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#ifndef SKEIN256_End
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#define SKEIN256_End _libmd_SKEIN256_End
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#define SKEIN512_End _libmd_SKEIN512_End
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#define SKEIN1024_End _libmd_SKEIN1024_End
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#endif
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#ifndef SKEIN256_File
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#define SKEIN256_File _libmd_SKEIN256_File
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#define SKEIN512_File _libmd_SKEIN512_File
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#define SKEIN1024_File _libmd_SKEIN1024_File
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#endif
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#ifndef SKEIN256_FileChunk
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#define SKEIN256_FileChunk _libmd_SKEIN256_FileChunk
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#define SKEIN512_FileChunk _libmd_SKEIN512_FileChunk
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#define SKEIN1024_FileChunk _libmd_SKEIN1024_FileChunk
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#endif
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#ifndef SKEIN256_Data
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#define SKEIN256_Data _libmd_SKEIN256_Data
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#define SKEIN512_Data _libmd_SKEIN512_Data
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#define SKEIN1024_Data _libmd_SKEIN1024_Data
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#endif
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__END_DECLS
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#endif /* ifndef _SKEIN_PORT_H_ */
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