xref: /f-stack/tools/compat/include/sys/caprights.h (revision 1eaf0ac3)
1 /*-
2  * Copyright (c) 2013 FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Pawel Jakub Dawidek under sponsorship from
6  * the FreeBSD Foundation.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _SYS_CAPRIGHTS_H_
33 #define	_SYS_CAPRIGHTS_H_
34 
35 /*
36  * The top two bits in the first element of the cr_rights[] array contain
37  * total number of elements in the array - 2. This means if those two bits are
38  * equal to 0, we have 2 array elements.
39  * The top two bits in all remaining array elements should be 0.
40  * The next five bits contain array index. Only one bit is used and bit position
41  * in this five-bits range defines array index. This means there can be at most
42  * five array elements.
43  */
44 #define	CAP_RIGHTS_VERSION_00	0
45 /*
46 #define	CAP_RIGHTS_VERSION_01	1
47 #define	CAP_RIGHTS_VERSION_02	2
48 #define	CAP_RIGHTS_VERSION_03	3
49 */
50 #define	CAP_RIGHTS_VERSION	CAP_RIGHTS_VERSION_00
51 
52 struct cap_rights {
53 	uint64_t	cr_rights[CAP_RIGHTS_VERSION + 2];
54 };
55 
56 #ifndef	_CAP_RIGHTS_T_DECLARED
57 #define	_CAP_RIGHTS_T_DECLARED
58 typedef	struct cap_rights	cap_rights_t;
59 #endif
60 
61 #endif /* !_SYS_CAPRIGHTS_H_ */
62