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  */
43 struct 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 };
68 TAILQ_HEAD(auditfilter_module_list, auditfilter_module);
69 
70 /*
71  * List of currently registered modules.
72  */
73 extern struct auditfilter_module_list	filter_list;
74 
75 /*
76  * Function definitions.
77  */
78 int	auditfilterd_conf(const char *filename, FILE *fp);
79 void	auditfilterd_conf_shutdown(void);
80