plugin.h revision 12918:32a41a5f8110 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25#ifndef	_PLUGIN_H
26#define	_PLUGIN_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32#include <security/auditd.h>
33#include "queue.h"
34
35typedef struct thd {
36	pthread_cond_t	thd_cv;
37	pthread_mutex_t	thd_mutex;
38	int		thd_waiting;
39} thr_data_t;
40
41typedef struct plg plugin_t;
42struct plg {
43	boolean_t	plg_initialized;	/* if threads, pools created */
44	boolean_t	plg_reopen;		/* call auditd_plugin_open */
45	/*
46	 * removed is 1 if last read of audit configuration didn't list this
47	 * plugin or the plugin is marked as "inactive"; it needs to be removed.
48	 */
49	boolean_t	plg_removed;		/* plugin removed */
50	boolean_t	plg_to_be_removed;	/* tentative removal state */
51
52	char		*plg_path;		/* plugin path */
53	void		*plg_dlptr;		/* dynamic lib pointer */
54	auditd_rc_t	(*plg_fplugin)(const char *, size_t, uint64_t, char **);
55	auditd_rc_t	(*plg_fplugin_open)(const kva_t *, char **, char **);
56	auditd_rc_t	(*plg_fplugin_close)(char **);
57
58	kva_t		*plg_kvlist;		/* plugin inputs */
59	size_t		plg_qmax;		/* max queue size */
60	size_t		plg_qmin;		/* min queue size */
61
62	uint64_t	plg_sequence;		/* buffer counter */
63	uint64_t	plg_last_seq_out;	/* buffer counter (debug) */
64	uint32_t	plg_tossed;		/* discards (debug) */
65	uint32_t	plg_queued;		/* count buffers queued */
66	uint32_t	plg_output;		/* count of buffers output */
67	int		plg_priority;		/* current priority */
68
69	au_queue_t	plg_pool;		/* buffer pool */
70	au_queue_t	plg_queue;		/* queue drawn from pool */
71	int		plg_q_threshold;	/* max preallocated queue */
72	audit_q_t	*plg_save_q_copy;	/* tmp holding for a record */
73
74	pthread_t	plg_tid;		/* thread id */
75	pthread_cond_t	plg_cv;
76	pthread_mutex_t	plg_mutex;
77	int		plg_waiting;		/* output thread wait state */
78
79	int		plg_cnt;		/* continue policy */
80
81	int		plg_retry_time;		/* retry (seconds) */
82
83	plugin_t	*plg_next;		/* null is end of list */
84};
85
86int	auditd_thread_init();
87void	auditd_thread_close();
88void	auditd_exit(int);
89
90extern plugin_t		*plugin_head;
91extern pthread_mutex_t	plugin_mutex;
92
93#ifdef __cplusplus
94}
95#endif
96
97#endif	/* _PLUGIN_H */
98