66 lines
2.7 KiB
C
66 lines
2.7 KiB
C
/*-
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* Copyright (c) 1999-2002, 2006 Robert N. M. Watson
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* Copyright (c) 2001-2002 Networks Associates Technology, Inc.
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* All rights reserved.
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*
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* This software was developed by Robert Watson for the TrustedBSD Project.
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*
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* This software was developed for the FreeBSD Project in part by Network
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* Associates Laboratories, the Security Research Division of Network
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* Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
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* as part of the DARPA CHATS research program.
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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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#ifndef _SYS__LABEL_H_
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#define _SYS__LABEL_H_
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/*
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* Definition for the 'struct label' in-kernel MAC label data structure.
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* In general, struct label pointers are embedded in kernel data structures
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* representing objects that may be labeled (and protected). It is not
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* directly embedded in order to avoid encoding this definition into modules
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* unnecessarily. Currently, only the MAC Framework and MAC policy modules
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* dereference this data structure. In the future, we would like struct
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* label to also be opaque to policies. Each policy requesting a label slot
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* can store one long or void pointer in their slot.
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*
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* XXXMAC: This shouldn't be exported to userland, but is because of ucred.h
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* and various other messes.
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*/
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#define MAC_MAX_SLOTS 4
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#define MAC_FLAG_INITIALIZED 0x0000001 /* Is initialized for use. */
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struct label {
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int l_flags;
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union {
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void *l_ptr;
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long l_long;
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} l_perpolicy[MAC_MAX_SLOTS];
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};
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#endif /* !_SYS__LABEL_H_ */
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