The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/caprights.h

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    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: stable/12/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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