1/*
2 * Copyright (c) 2014 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29#ifndef _SYS_CSR_H_
30#define _SYS_CSR_H_
31
32#include <stdint.h>
33#include <sys/appleapiopts.h>
34#include <sys/cdefs.h>
35
36#ifdef __APPLE_API_PRIVATE
37
38typedef uint32_t csr_config_t;
39typedef uint32_t csr_op_t;
40
41/* Rootless configuration flags */
42#define CSR_ALLOW_UNTRUSTED_KEXTS		(1 << 0)
43#define CSR_ALLOW_UNRESTRICTED_FS		(1 << 1)
44#define CSR_ALLOW_TASK_FOR_PID			(1 << 2)
45#define CSR_ALLOW_KERNEL_DEBUGGER		(1 << 3)
46#define CSR_ALLOW_APPLE_INTERNAL		(1 << 4)
47#define CSR_ALLOW_DESTRUCTIVE_DTRACE	(1 << 5) /* name deprecated */
48#define CSR_ALLOW_UNRESTRICTED_DTRACE	(1 << 5)
49#define CSR_ALLOW_UNRESTRICTED_NVRAM	(1 << 6)
50
51#define CSR_VALID_FLAGS (CSR_ALLOW_UNTRUSTED_KEXTS | \
52                         CSR_ALLOW_UNRESTRICTED_FS | \
53                         CSR_ALLOW_TASK_FOR_PID | \
54                         CSR_ALLOW_KERNEL_DEBUGGER | \
55                         CSR_ALLOW_APPLE_INTERNAL | \
56                         CSR_ALLOW_UNRESTRICTED_DTRACE | \
57                         CSR_ALLOW_UNRESTRICTED_NVRAM)
58
59#ifdef PRIVATE
60/* Private system call interface between Libsyscall and xnu */
61
62/* Syscall flavors */
63#define CSR_OP_CHECK 0
64#define CSR_OP_GET_ACTIVE_CONFIG 1
65#define CSR_OP_GET_PENDING_CONFIG 2
66
67#endif /* PRIVATE */
68
69__BEGIN_DECLS
70
71#ifdef XNU_KERNEL_PRIVATE
72void csr_init(void);
73#endif
74
75#if KERNEL_PRIVATE
76void csr_set_allow_all(int value);
77#endif
78
79/* Syscalls */
80int csr_check(csr_config_t mask);
81int csr_get_active_config(csr_config_t *config);
82int csr_get_pending_config(csr_config_t *config);
83
84__END_DECLS
85
86#endif /* __APPLE_API_PRIVATE */
87
88#endif /* _SYS_CSR_H_ */
89