HardenedBSD/sys/bsm/audit_internal.h
Pedro F. Giffuni 51369649b0 sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:43:44 +00:00

120 lines
4.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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_ */