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17c5b2c8e3
in a previous commit. Whoops! Reported by: jhb Reviewed by: anderson Discussed with: benl, kris, pjd Sponsored by: Google, Inc. Obtained from: Capsicum Project MFC after: 3 months
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*-
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* Copyright (c) 2008-2010 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed at the University of Cambridge Computer
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* Laboratory with support from a grant from Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Definitions for FreeBSD capabilities facility.
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*/
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#ifndef _SYS_CAPABILITY_H_
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#define _SYS_CAPABILITY_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#ifdef _KERNEL
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#define IN_CAPABILITY_MODE(td) (td->td_ucred->cr_flags & CRED_FLAG_CAPMODE)
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#else /* !_KERNEL */
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__BEGIN_DECLS
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/*
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* cap_enter(): Cause the process to enter capability mode, which will
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* prevent it from directly accessing global namespaces. System calls will
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* be limited to process-local, process-inherited, or file descriptor
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* operations. If already in capability mode, a no-op.
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*
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* Currently, process-inherited operations are not properly handled -- in
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* particular, we're interested in things like waitpid(2), kill(2), etc,
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* being properly constrained. One possible solution is to introduce process
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* descriptors.
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*/
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int cap_enter(void);
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/*
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* cap_getmode(): Are we in capability mode?
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*/
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int cap_getmode(u_int* modep);
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__END_DECLS
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#endif /* !_KERNEL */
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#endif /* !_SYS_CAPABILITY_H_ */
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