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      1 /*	$NetBSD: capability.h,v 1.3 2021/12/19 01:22:01 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _LINUX_CAPABILITY_H_
     30 #define _LINUX_CAPABILITY_H_
     31 
     32 #include <sys/kauth.h>
     33 
     34 enum linux_capability {
     35 	LINUX_CAP_SYS_ADMIN,
     36 	LINUX_CAP_SYS_NICE,
     37 #define	CAP_SYS_ADMIN	LINUX_CAP_SYS_ADMIN
     38 #define	CAP_SYS_NICE	LINUX_CAP_SYS_NICE
     39 };
     40 
     41 static inline bool
     42 capable(enum linux_capability cap)
     43 {
     44 	switch (cap) {
     45 	case CAP_SYS_ADMIN:
     46 	case CAP_SYS_NICE:
     47 		return (kauth_authorize_generic(kauth_cred_get(),
     48 			KAUTH_GENERIC_ISSUSER, NULL) == 0);
     49 	default:
     50 		panic("unknown cap %d", cap);
     51 	}
     52 }
     53 
     54 #endif  /* _LINUX_CAPABILITY_H_ */
     55