1/*-
2 * Copyright (c) 2006 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * This software was developed by Robert Watson for the TrustedBSD Project.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $P4: //depot/projects/trustedbsd/openbsm/bin/auditfilterd/auditfilterd.h#5 $
29 */
30
31#define	AUDITFILTERD_CONFFILE	"/etc/security/audit_filter"
32#define	AUDITFILTERD_PIPEFILE	"/dev/auditpipe"
33
34/*
35 * Limit on the number of arguments that can appear in an audit_filterd
36 * configuration line.
37 */
38#define	AUDITFILTERD_CONF_MAXARGS	256
39
40/*
41 * Data structure description each instantiated module.
42 */
43struct auditfilter_module {
44	/*
45	 * Fields from configuration file and dynamic linker.
46	 */
47	char						*am_modulename;
48	char						*am_arg_buffer;
49	int						 am_argc;
50	char						**am_argv;
51	void						*am_dlhandle;
52
53	/*
54	 * Fields provided by or extracted from the module.
55	 */
56	void						*am_cookie;
57	audit_filter_attach_t				 am_attach;
58	audit_filter_reinit_t				 am_reinit;
59	audit_filter_record_t				 am_record;
60	audit_filter_rawrecord_t			 am_rawrecord;
61	audit_filter_detach_t				 am_detach;
62
63	/*
64	 * Fields for maintaining the list of modules.
65	 */
66	TAILQ_ENTRY(auditfilter_module)			 am_list;
67};
68TAILQ_HEAD(auditfilter_module_list, auditfilter_module);
69
70/*
71 * List of currently registered modules.
72 */
73extern struct auditfilter_module_list	filter_list;
74
75/*
76 * Function definitions.
77 */
78int	auditfilterd_conf(const char *filename, FILE *fp);
79void	auditfilterd_conf_shutdown(void);
80