153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
/* $OpenBSD: crypto_internal.h,v 1.7 2023/08/15 08:39:27 jsing Exp $ */
|
|
/*
|
|
* Copyright (c) 2023 Joel Sing <jsing@openbsd.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <endian.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
#ifndef HEADER_CRYPTO_INTERNAL_H
|
|
#define HEADER_CRYPTO_INTERNAL_H
|
|
|
|
#define CTASSERT(x) \
|
|
extern char _ctassert[(x) ? 1 : -1] __attribute__((__unused__))
|
|
|
|
/*
|
|
* crypto_load_be32toh() loads a 32 bit unsigned big endian value as a 32 bit
|
|
* unsigned host endian value, from the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_LOAD_BE32TOH
|
|
static inline uint32_t
|
|
crypto_load_be32toh(const uint8_t *src)
|
|
{
|
|
uint32_t v;
|
|
|
|
memcpy(&v, src, sizeof(v));
|
|
|
|
return be32toh(v);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* crypto_store_htobe32() stores a 32 bit unsigned host endian value as a 32 bit
|
|
* unsigned big endian value, at the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_STORE_HTOBE32
|
|
static inline void
|
|
crypto_store_htobe32(uint8_t *dst, uint32_t v)
|
|
{
|
|
v = htobe32(v);
|
|
memcpy(dst, &v, sizeof(v));
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* crypto_load_be64toh() loads a 64 bit unsigned big endian value as a 64 bit
|
|
* unsigned host endian value, from the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_LOAD_BE64TOH
|
|
static inline uint64_t
|
|
crypto_load_be64toh(const uint8_t *src)
|
|
{
|
|
uint64_t v;
|
|
|
|
memcpy(&v, src, sizeof(v));
|
|
|
|
return be64toh(v);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* crypto_store_htobe64() stores a 64 bit unsigned host endian value as a 64 bit
|
|
* unsigned big endian value, at the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_STORE_HTOBE64
|
|
static inline void
|
|
crypto_store_htobe64(uint8_t *dst, uint64_t v)
|
|
{
|
|
v = htobe64(v);
|
|
memcpy(dst, &v, sizeof(v));
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* crypto_load_le32toh() loads a 32 bit unsigned little endian value as a 32 bit
|
|
* unsigned host endian value, from the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_LOAD_BE32TOH
|
|
static inline uint32_t
|
|
crypto_load_le32toh(const uint8_t *src)
|
|
{
|
|
uint32_t v;
|
|
|
|
memcpy(&v, src, sizeof(v));
|
|
|
|
return le32toh(v);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* crypto_store_htole32() stores a 32 bit unsigned host endian value as a 32 bit
|
|
* unsigned little endian value, at the specified address in memory. The memory
|
|
* address may have any alignment.
|
|
*/
|
|
#ifndef HAVE_CRYPTO_STORE_HTOBE32
|
|
static inline void
|
|
crypto_store_htole32(uint8_t *dst, uint32_t v)
|
|
{
|
|
v = htole32(v);
|
|
memcpy(dst, &v, sizeof(v));
|
|
}
|
|
#endif
|
|
|
|
#ifndef HAVE_CRYPTO_ROL_U32
|
|
static inline uint32_t
|
|
crypto_rol_u32(uint32_t v, size_t shift)
|
|
{
|
|
return (v << shift) | (v >> (32 - shift));
|
|
}
|
|
#endif
|
|
|
|
#ifndef HAVE_CRYPTO_ROR_U32
|
|
static inline uint32_t
|
|
crypto_ror_u32(uint32_t v, size_t shift)
|
|
{
|
|
return (v << (32 - shift)) | (v >> shift);
|
|
}
|
|
#endif
|
|
|
|
#ifndef HAVE_CRYPTO_ROL_U64
|
|
static inline uint64_t
|
|
crypto_rol_u64(uint64_t v, size_t shift)
|
|
{
|
|
return (v << shift) | (v >> (64 - shift));
|
|
}
|
|
#endif
|
|
|
|
#ifndef HAVE_CRYPTO_ROR_U64
|
|
static inline uint64_t
|
|
crypto_ror_u64(uint64_t v, size_t shift)
|
|
{
|
|
return (v << (64 - shift)) | (v >> shift);
|
|
}
|
|
#endif
|
|
|
|
#endif
|