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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 (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 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <sys/types.h>
     30 #include <stdio.h>
     31 #include <sys/fcntl.h>
     32 #include <bsm/audit.h>
     33 #include <bsm/audit_record.h>
     34 #include <bsm/audit_uevents.h>
     35 #include <bsm/libbsm.h>
     36 #include <bsm/audit_private.h>
     37 #include <stdlib.h>
     38 #include <string.h>
     39 #include <syslog.h>
     40 #include <netinet/in.h>
     41 #include <unistd.h>
     42 #include <synch.h>
     43 #include <generic.h>
     44 
     45 #ifdef C2_DEBUG2
     46 #define	dprintf(x) { printf x; }
     47 #else
     48 #define	dprintf(x)
     49 #endif
     50 
     51 static mutex_t audit_mountd_lock = DEFAULTMUTEX;
     52 static int cannotaudit = 0;
     53 
     54 /*
     55  * This setup call is made only once at the start of mountd.
     56  * The call sets the auditing state off if appropriate, and is
     57  * made in single threaded code, hence no locking is required.
     58  */
     59 void
     60 audit_mountd_setup()
     61 {
     62 	dprintf(("audit_mountd_setup()\n"));
     63 
     64 
     65 	if (cannot_audit(0))
     66 		cannotaudit = 1;
     67 }
     68 
     69 void
     70 audit_mountd_mount(clname, path, sorf)
     71 char	*clname;	/* client name */
     72 char	*path;		/* mount path */
     73 int	sorf;		/* flag for success or failure */
     74 {
     75 	uint32_t buf[4], type;
     76 	dprintf(("audit_mountd_mount()\n"));
     77 
     78 	if (cannotaudit)
     79 		return;
     80 
     81 	(void) mutex_lock(&audit_mountd_lock);
     82 
     83 	(void) aug_save_namask();
     84 
     85 	(void) aug_save_me();
     86 	aug_save_event(AUE_mountd_mount);
     87 	aug_save_sorf(sorf);
     88 	aug_save_text(clname);
     89 	aug_save_path(path);
     90 	(void) aug_get_machine(clname, buf, &type);
     91 	aug_save_tid_ex(aug_get_port(), buf, type);
     92 	(void) aug_audit();
     93 	(void) mutex_unlock(&audit_mountd_lock);
     94 }
     95 
     96 void
     97 audit_mountd_umount(clname, path)
     98 char	*clname;	/* client name */
     99 char	*path;		/* mount path */
    100 {
    101 	uint32_t buf[4], type;
    102 
    103 	dprintf(("audit_mountd_mount()\n"));
    104 
    105 	if (cannotaudit)
    106 		return;
    107 
    108 	(void) mutex_lock(&audit_mountd_lock);
    109 
    110 	(void) aug_save_namask();
    111 
    112 	(void) aug_save_me();
    113 	aug_save_event(AUE_mountd_umount);
    114 	aug_save_sorf(0);
    115 	aug_save_text(clname);
    116 	aug_save_path(path);
    117 	(void) aug_get_machine(clname, buf, &type);
    118 	aug_save_tid_ex(aug_get_port(), buf, type);
    119 	(void) aug_audit();
    120 	(void) mutex_unlock(&audit_mountd_lock);
    121 }
    122