mirror of
https://github.com/opnsense/src.git
synced 2026-03-04 14:24:23 -05:00
d1d32c3dc4
These headers are required in order to build the bootstrap tools on macOS and Linux. A follow-up commit will add implementations of functions that don't exist on those operating systems to -legacy when bootstrapping. Reviewed By: brooks Differential Revision: https://reviews.freebsd.org/D14316
182 lines
4.5 KiB
C
182 lines
4.5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright 2018-2020 Alex Richardson <arichardson@FreeBSD.org>
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory (Department of Computer Science and
|
|
* Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
|
|
* DARPA SSITH research programme.
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
|
|
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#pragma once
|
|
|
|
#if __has_include_next(<sys/endian.h>)
|
|
#include_next <sys/endian.h>
|
|
#endif
|
|
|
|
#if __has_include(<endian.h>)
|
|
#include <endian.h>
|
|
#endif
|
|
|
|
/* Linux uses a double underscore, FreeBSD a single one */
|
|
#define _LITTLE_ENDIAN __LITTLE_ENDIAN
|
|
#define _BIG_ENDIAN __BIG_ENDIAN
|
|
#define _BYTE_ORDER __BYTE_ORDER
|
|
|
|
/*
|
|
* Ensure all these are constant expressions (which is not the case for some
|
|
* of the glibc versions depending on compiler optimization level)
|
|
*/
|
|
|
|
#undef bswap64
|
|
#define bswap64(a) __builtin_bswap64(a)
|
|
|
|
#undef bswap32
|
|
#define bswap32(a) __builtin_bswap32(a)
|
|
|
|
#undef bswap16
|
|
#define bswap16(a) __builtin_bswap16(a)
|
|
|
|
#undef __bswap_64
|
|
#define __bswap_64(a) __builtin_bswap64(a)
|
|
|
|
#undef __bswap_32
|
|
#define __bswap_32(a) __builtin_bswap32(a)
|
|
|
|
#undef __bswap_16
|
|
#define __bswap_16(a) __builtin_bswap16(a)
|
|
|
|
/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
|
|
|
|
static __inline uint16_t
|
|
be16dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return ((p[0] << 8) | p[1]);
|
|
}
|
|
|
|
static __inline uint32_t
|
|
be32dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
|
|
}
|
|
|
|
static __inline uint64_t
|
|
be64dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
|
|
}
|
|
|
|
static __inline uint16_t
|
|
le16dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return ((p[1] << 8) | p[0]);
|
|
}
|
|
|
|
static __inline uint32_t
|
|
le32dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
|
|
}
|
|
|
|
static __inline uint64_t
|
|
le64dec(const void *pp)
|
|
{
|
|
uint8_t const *p = (uint8_t const *)pp;
|
|
|
|
return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
|
|
}
|
|
|
|
static __inline void
|
|
be16enc(void *pp, uint16_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
p[0] = (u >> 8) & 0xff;
|
|
p[1] = u & 0xff;
|
|
}
|
|
|
|
static __inline void
|
|
be32enc(void *pp, uint32_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
p[0] = (u >> 24) & 0xff;
|
|
p[1] = (u >> 16) & 0xff;
|
|
p[2] = (u >> 8) & 0xff;
|
|
p[3] = u & 0xff;
|
|
}
|
|
|
|
static __inline void
|
|
be64enc(void *pp, uint64_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
be32enc(p, (uint32_t)(u >> 32));
|
|
be32enc(p + 4, (uint32_t)(u & 0xffffffffU));
|
|
}
|
|
|
|
static __inline void
|
|
le16enc(void *pp, uint16_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
p[0] = u & 0xff;
|
|
p[1] = (u >> 8) & 0xff;
|
|
}
|
|
|
|
static __inline void
|
|
le32enc(void *pp, uint32_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
p[0] = u & 0xff;
|
|
p[1] = (u >> 8) & 0xff;
|
|
p[2] = (u >> 16) & 0xff;
|
|
p[3] = (u >> 24) & 0xff;
|
|
}
|
|
|
|
static __inline void
|
|
le64enc(void *pp, uint64_t u)
|
|
{
|
|
uint8_t *p = (uint8_t *)pp;
|
|
|
|
le32enc(p, (uint32_t)(u & 0xffffffffU));
|
|
le32enc(p + 4, (uint32_t)(u >> 32));
|
|
}
|