1/*
2 * Copyright (c) 2022 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22
23#ifndef _KERN_LOCKDOWN_MODE_H_
24#define _KERN_LOCKDOWN_MODE_H_
25
26#include <sys/cdefs.h>
27__BEGIN_DECLS
28
29#if KERNEL_PRIVATE
30/* XNU and Kernel extensions */
31
32#if XNU_KERNEL_PRIVATE
33
34// Whether Lockdown Mode is enabled via the "ldm" nvram variable
35extern int lockdown_mode_state;
36
37/**
38 * Initalizes Lockdown Mode
39 */
40void lockdown_mode_init(void);
41
42#endif /* XNU_KERNEL_PRIVATE */
43
44/**
45 * Returns the Lockdown Mode enablement state
46 */
47int get_lockdown_mode_state(void);
48
49/**
50 * Enable Lockdown Mode by setting the nvram variable
51 */
52void enable_lockdown_mode(void);
53
54/**
55 * Disable Lockdown Mode by setting the nvram variable
56 */
57void disable_lockdown_mode(void);
58
59#endif /* KERNEL_PRIVATE */
60__END_DECLS
61
62#endif /* _KERN_LOCKDOWN_MODE_H_ */
63