118 lines
3.9 KiB
C
118 lines
3.9 KiB
C
/*-
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* Copyright (c) 2005-2008 Apple Inc.
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* Copyright (c) 2005 SPARTA, Inc.
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* All rights reserved.
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*
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* This code was developed in part by Robert N. M. Watson, Senior Principal
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* Scientist, SPARTA, 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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*
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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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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _AUDIT_INTERNAL_H
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#define _AUDIT_INTERNAL_H
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#if defined(__linux__) && !defined(__unused)
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#define __unused
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#endif
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/*
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* audit_internal.h contains private interfaces that are shared by user space
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* and the kernel for the purposes of assembling audit records. Applications
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* should not include this file or use the APIs found within, or it may be
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* broken with future releases of OpenBSM, which may delete, modify, or
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* otherwise break these interfaces or the assumptions they rely on.
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*/
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struct au_token {
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u_char *t_data;
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size_t len;
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TAILQ_ENTRY(au_token) tokens;
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};
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struct au_record {
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char used; /* Record currently in use? */
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int desc; /* Descriptor for record. */
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TAILQ_HEAD(, au_token) token_q; /* Queue of BSM tokens. */
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u_char *data;
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size_t len;
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LIST_ENTRY(au_record) au_rec_q;
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};
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typedef struct au_record au_record_t;
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/*
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* We could determined the header and trailer sizes by defining appropriate
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* structures. We hold off that approach until we have a consistent way of
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* using structures for all tokens. This is not straightforward since these
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* token structures may contain pointers of whose contents we do not know the
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* size (e.g text tokens).
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*/
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#define AUDIT_HEADER_EX_SIZE(a) ((a)->ai_termid.at_type+18+sizeof(u_int32_t))
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#define AUDIT_HEADER_SIZE 18
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#define MAX_AUDIT_HEADER_SIZE (5*sizeof(u_int32_t)+18)
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#define AUDIT_TRAILER_SIZE 7
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/*
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* BSM token streams store fields in big endian byte order, so as to be
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* portable; when encoding and decoding, we must convert byte orders for
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* typed values.
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*/
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#define ADD_U_CHAR(loc, val) \
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do { \
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*(loc) = (val); \
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(loc) += sizeof(u_char); \
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} while(0)
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#define ADD_U_INT16(loc, val) \
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do { \
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be16enc((loc), (val)); \
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(loc) += sizeof(u_int16_t); \
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} while(0)
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#define ADD_U_INT32(loc, val) \
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do { \
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be32enc((loc), (val)); \
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(loc) += sizeof(u_int32_t); \
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} while(0)
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#define ADD_U_INT64(loc, val) \
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do { \
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be64enc((loc), (val)); \
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(loc) += sizeof(u_int64_t); \
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} while(0)
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#define ADD_MEM(loc, data, size) \
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do { \
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memcpy((loc), (data), (size)); \
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(loc) += size; \
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} while(0)
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#define ADD_STRING(loc, data, size) ADD_MEM(loc, data, size)
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#endif /* !_AUDIT_INTERNAL_H_ */
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