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      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, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  *
     26  */
     27 
     28 #ifndef	_PLUGIN_H
     29 #define	_PLUGIN_H
     30 
     31 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     32 
     33 #ifdef __cplusplus
     34 extern "C" {
     35 #endif
     36 
     37 #include <security/auditd.h>
     38 #include "queue.h"
     39 
     40 typedef struct thd {
     41 	pthread_cond_t	thd_cv;
     42 	pthread_mutex_t	thd_mutex;
     43 	int		thd_waiting;
     44 } thr_data_t;
     45 
     46 typedef struct plg plugin_t;
     47 struct plg {
     48 	boolean_t	plg_initialized;	/* if threads, pools created */
     49 	boolean_t	plg_reopen;		/* call auditd_plugin_open */
     50 	/*
     51 	 * removed is 1 if last read of audit_control didn't list this
     52 	 * plugin; it needs to be removed.
     53 	 */
     54 	boolean_t	plg_removed;		/* plugin removed */
     55 	boolean_t	plg_to_be_removed;	/* tentative removal state */
     56 
     57 	char		*plg_path;		/* plugin path */
     58 	void		*plg_dlptr;		/* dynamic lib pointer */
     59 	auditd_rc_t	(*plg_fplugin)(const char *, size_t, int, char **);
     60 	auditd_rc_t	(*plg_fplugin_open)(const kva_t *, char **, char **);
     61 	auditd_rc_t	(*plg_fplugin_close)(char **);
     62 
     63 	kva_t		*plg_kvlist;		/* plugin inputs */
     64 	size_t		plg_qmax;		/* max queue size */
     65 	size_t		plg_qmin;		/* min queue size */
     66 
     67 	uint32_t	plg_sequence;		/* buffer counter */
     68 	uint32_t	plg_last_seq_out;	/* buffer counter (debug) */
     69 	uint32_t	plg_tossed;		/* discards (debug) */
     70 	uint32_t	plg_queued;		/* count buffers queued */
     71 	uint32_t	plg_output;		/* count of buffers output */
     72 	int		plg_priority;		/* current priority */
     73 
     74 	au_queue_t	plg_pool;		/* buffer pool */
     75 	au_queue_t	plg_queue;		/* queue drawn from pool */
     76 	int		plg_q_threshold;	/* max preallocated queue */
     77 	audit_q_t	*plg_save_q_copy;	/* tmp holding for a record */
     78 
     79 	pthread_t	plg_tid;		/* thread id */
     80 	pthread_cond_t	plg_cv;
     81 	pthread_mutex_t	plg_mutex;
     82 	int		plg_waiting;		/* output thread wait state */
     83 
     84 	int		plg_cnt;		/* continue policy */
     85 
     86 	int		plg_retry_time;		/* retry (seconds) */
     87 
     88 	plugin_t	*plg_next;		/* null is end of list */
     89 };
     90 
     91 int	auditd_thread_init();
     92 void	auditd_thread_close();
     93 void	auditd_exit(int);
     94 
     95 extern plugin_t		*plugin_head;
     96 extern pthread_mutex_t	plugin_mutex;
     97 
     98 #ifdef __cplusplus
     99 }
    100 #endif
    101 
    102 #endif	/* _PLUGIN_H */
    103