57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* SPDX-License-Identifier: ISC
|
|
*
|
|
* Copyright (C) 2021 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
|
|
* Copyright (C) 2021 Matt Dunwoodie <ncon@noconroy.net>
|
|
*/
|
|
|
|
#ifndef _WG_SUPPORT
|
|
#define _WG_SUPPORT
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/limits.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/libkern.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/lock.h>
|
|
#include <vm/uma.h>
|
|
|
|
/* TODO the following is openbsd compat defines to allow us to copy the wg_*
|
|
* files from openbsd (almost) verbatim. this will greatly increase maintenance
|
|
* across the platforms. it should be moved to it's own file. the only thing
|
|
* we're missing from this is struct pool (freebsd: uma_zone_t), which isn't a
|
|
* show stopper, but is something worth considering in the future.
|
|
* - md */
|
|
|
|
#define rw_assert_wrlock(x) rw_assert(x, RA_WLOCKED)
|
|
#define rw_enter_write rw_wlock
|
|
#define rw_exit_write rw_wunlock
|
|
#define rw_enter_read rw_rlock
|
|
#define rw_exit_read rw_runlock
|
|
#define rw_exit rw_unlock
|
|
|
|
#define RW_DOWNGRADE 1
|
|
#define rw_enter(x, y) do { \
|
|
CTASSERT(y == RW_DOWNGRADE); \
|
|
rw_downgrade(x); \
|
|
} while (0)
|
|
|
|
MALLOC_DECLARE(M_WG);
|
|
|
|
#include <crypto/siphash/siphash.h>
|
|
typedef struct {
|
|
uint64_t k0;
|
|
uint64_t k1;
|
|
} SIPHASH_KEY;
|
|
|
|
static inline uint64_t
|
|
siphash24(const SIPHASH_KEY *key, const void *src, size_t len)
|
|
{
|
|
SIPHASH_CTX ctx;
|
|
|
|
return (SipHashX(&ctx, 2, 4, (const uint8_t *)key, src, len));
|
|
}
|
|
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
|
|
|
|
#endif
|