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// 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) 2025, Rob Norris <robn@despairlabs.com>
*/
#ifndef _SYS_TUNABLES_H
#define _SYS_TUNABLES_H extern __attribute__((visibility("hidden")))
typedef enum {
ZFS_TUNABLE_TYPE_INT,
ZFS_TUNABLE_TYPE_UINT,
ZFS_TUNABLE_TYPE_ULONG,
ZFS_TUNABLE_TYPE_U64,
ZFS_TUNABLE_TYPE_STRING,
} zfs_tunable_type_t;
typedef enum {
ZFS_TUNABLE_PERM_ZMOD_RW,
ZFS_TUNABLE_PERM_ZMOD_RD,
} zfs_tunable_perm_t;
typedef struct zfs_tunable {
const char *zt_name;
void *zt_varp;
size_t zt_varsz;
zfs_tunable_type_t zt_type;
zfs_tunable_perm_t zt_perm;
const char *zt_desc;
} zfs_tunable_t;
_SYS_TUNABLES_H int zfs_tunable_set(const zfs_tunable_t *tunable,
const char *val);
_SYS_TUNABLES_H int zfs_tunable_get(const zfs_tunable_t *tunable, char *val,
size_t valsz);
_SYS_TUNABLES_H const zfs_tunable_t *zfs_tunable_lookup(const char *name);
typedef int (*zfs_tunable_iter_t)(const zfs_tunable_t *tunable, void *arg);
_SYS_TUNABLES_H void zfs_tunable_iter(zfs_tunable_iter_t cb, void *arg);
#endif
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