FreeBSD/Linux Kernel Cross Reference
sys/sys/caprights.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2013 FreeBSD Foundation
5 * All rights reserved.
6 *
7 * This software was developed by Pawel Jakub Dawidek under sponsorship from
8 * the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD: releng/12.0/sys/sys/caprights.h 326256 2017-11-27 15:01:59Z pfg $
32 */
33
34 #ifndef _SYS_CAPRIGHTS_H_
35 #define _SYS_CAPRIGHTS_H_
36
37 /*
38 * The top two bits in the first element of the cr_rights[] array contain
39 * total number of elements in the array - 2. This means if those two bits are
40 * equal to 0, we have 2 array elements.
41 * The top two bits in all remaining array elements should be 0.
42 * The next five bits contain array index. Only one bit is used and bit position
43 * in this five-bits range defines array index. This means there can be at most
44 * five array elements.
45 */
46 #define CAP_RIGHTS_VERSION_00 0
47 /*
48 #define CAP_RIGHTS_VERSION_01 1
49 #define CAP_RIGHTS_VERSION_02 2
50 #define CAP_RIGHTS_VERSION_03 3
51 */
52 #define CAP_RIGHTS_VERSION CAP_RIGHTS_VERSION_00
53
54 struct cap_rights {
55 uint64_t cr_rights[CAP_RIGHTS_VERSION + 2];
56 };
57
58 #ifndef _CAP_RIGHTS_T_DECLARED
59 #define _CAP_RIGHTS_T_DECLARED
60 typedef struct cap_rights cap_rights_t;
61 #endif
62
63 #endif /* !_SYS_CAPRIGHTS_H_ */
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