ffbcef5a42
regular header tokens. The extended header tokens contain an IP or IPv6 address which makes it possible to identify which host an audit record came from when audit records are centralized. If the host information has not been specified, the system will default to the old style headers. Otherwise, audit records that are created as a result of system calls will contain host information. This implemented has been designed to be consistent with the Solaris implementation. Host information is set/retrieved using the A_GETKAUDIT and A_SETKAUDIT auditon(2) commands. These commands require that a pointer to a auditinfo_addr_t object is passed. Currently only IP and IPv6 address families are supported. The users pace bits associated with this change will follow in an openbsm import. Reviewed by: rwatson, (sson, wsalamon (older version)) MFC after: 1 month
119 lines
4.0 KiB
C
119 lines
4.0 KiB
C
/*
|
|
* Copyright (c) 2005 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 Computer, 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.
|
|
*
|
|
* P4: //depot/projects/trustedbsd/audit3/sys/bsm/audit_internal.h#18
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#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_ */
|