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  * 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_ */

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