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