xref: /dragonfly/sys/dev/drm/include/linux/capability.h (revision 5ca0a96d)
1 /*
2  * Copyright (c) 2015 Rimvydas Jasinskas
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 /*
28  * linux/capability.h
29  *
30  * Simple capable() priv_check helper
31  *
32  * Note enforced "const int" safety check
33  */
34 
35 #ifndef _LINUX_CAPABILITY_H
36 #define _LINUX_CAPABILITY_H
37 
38 #include <uapi/linux/capability.h>
39 
40 #include <sys/globaldata.h>
41 #include <sys/thread.h>
42 #include <sys/priv.h>
43 
44 struct task_struct;
45 
46 #define CAP_SYS_ADMIN		PRIV_DRIVER
47 
48 static inline bool
49 capable(const int tryme)
50 {
51 	return (priv_check(curthread, tryme) == 0);
52 }
53 
54 #endif /* _LINUX_CAPABILITY_H */
55