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libspl: move random definitions from zfs_context.h

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Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17861
This commit is contained in:
Rob Norris 2025-10-18 23:39:19 +11:00 committed by Brian Behlendorf
parent 55fb30ebe6
commit 1911501c7d
4 changed files with 55 additions and 24 deletions
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25
include/sys/zfs_context.h
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@ -126,11 +126,11 @@ extern "C" {
#include <sys/kmem.h>
#include <sys/zfs_delay.h>
#include <sys/vnode.h>
#include <sys/random.h>
#include <sys/callb.h>
#include <sys/trace.h>
#include <sys/systm.h>
#include <sys/misc.h>
#include <sys/random.h>
#include <sys/zfs_context_os.h>
@ -208,31 +208,8 @@ typedef off_t loff_t;
#define NN_DIVISOR_1000 (1U << 0)
#define NN_NUMBUF_SZ (6)
extern const char *random_path;
extern const char *urandom_path;
extern int highbit64(uint64_t i);
extern int lowbit64(uint64_t i);
extern int random_get_bytes(uint8_t *ptr, size_t len);
extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
static __inline__ uint32_t
random_in_range(uint32_t range)
{
uint32_t r;
ASSERT(range != 0);
if (range == 1)
return (0);
(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
return (r % range);
}
extern void random_init(void);
extern void random_fini(void);
typedef struct callb_cpr {
kmutex_t *cc_lockp;

1
lib/libspl/include/Makefile.am
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@ -53,6 +53,7 @@ libspl_sys_HEADERS = \
%D%/sys/priv.h \
%D%/sys/processor.h \
%D%/sys/procfs_list.h \
%D%/sys/random.h \
%D%/sys/rwlock.h \
%D%/sys/simd.h \
%D%/sys/stack.h \

3
lib/libspl/include/sys/misc.h
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@ -31,6 +31,9 @@
#include <sys/utsname.h>
extern const char *random_path;
extern const char *urandom_path;
/*
* Hostname information
*/

50
lib/libspl/include/sys/random.h Normal file
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@ -0,0 +1,50 @@
// SPDX-License-Identifier: CDDL-1.0
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
* Copyright (c) 2012, Joyent, Inc. All rights reserved.
*/
#ifndef _SYS_RANDOM_H
#define _SYS_RANDOM_H
extern int random_get_bytes(uint8_t *ptr, size_t len);
extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);
static __inline__ uint32_t
random_in_range(uint32_t range)
{
uint32_t r;
ASSERT(range != 0);
if (range == 1)
return (0);
(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));
return (r % range);
}
#endif /* _SYS_RANDOM_H */