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Diffstat (limited to 'sys/bsm/audit_internal.h')
| -rw-r--r-- | sys/bsm/audit_internal.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sys/bsm/audit_internal.h b/sys/bsm/audit_internal.h new file mode 100644 index 000000000000..501b03237b24 --- /dev/null +++ b/sys/bsm/audit_internal.h @@ -0,0 +1,119 @@ +/*- + * 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_ */ |