usr/src/lib/libbsm/common/audit_mountd.c

   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 2010 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  */
  27
  28 #include <sys/types.h>
  29 #include <stdio.h>
  30 #include <sys/fcntl.h>
  31 #include <bsm/audit.h>
  32 #include <bsm/audit_record.h>
  33 #include <bsm/audit_uevents.h>
  34 #include <bsm/libbsm.h>
  35 #include <bsm/audit_private.h>
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <syslog.h>
  39 #include <netinet/in.h>
  40 #include <unistd.h>
  41 #include <synch.h>
  42 #include <generic.h>
  43
  44 #ifdef C2_DEBUG2
  45 #define dprintf(x) { (void) printf x; }
  46 #else
  47 #define dprintf(x)
  48 #endif
  49
  50 static mutex_t audit_mountd_lock = DEFAULTMUTEX;
  51 static int cannotaudit = 0;
  52
  53 /*
  54  * This setup call is made only once at the start of mountd.
  55  * The call sets the auditing state off if appropriate, and is
  56  * made in single threaded code, hence no locking is required.
  57  */
  58 void
  59 audit_mountd_setup()
  60 {
  61         dprintf(("audit_mountd_setup()\n"));
  62
  63
  64         if (cannot_audit(0))
  65                 cannotaudit = 1;
  66 }
  67
  68 void
  69 audit_mountd_mount(clname, path, sorf)
  70 char    *clname;        /* client name */
  71 char    *path;          /* mount path */
  72 int     sorf;           /* flag for success or failure */
  73 {
  74         uint32_t buf[4], type;
  75         dprintf(("audit_mountd_mount()\n"));
  76
  77         if (cannotaudit)
  78                 return;
  79
  80         (void) mutex_lock(&audit_mountd_lock);
  81
  82         (void) aug_save_namask();
  83
  84         (void) aug_save_me();
  85         aug_save_event(AUE_mountd_mount);
  86         aug_save_sorf(sorf);
  87         aug_save_text(clname);
  88         aug_save_path(path);
  89         (void) aug_get_machine(clname, buf, &type);
  90         aug_save_tid_ex(aug_get_port(), buf, type);
  91         (void) aug_audit();
  92         (void) mutex_unlock(&audit_mountd_lock);
  93 }
  94
  95 void
  96 audit_mountd_umount(clname, path)
  97 char    *clname;        /* client name */
  98 char    *path;          /* mount path */
  99 {
 100         uint32_t buf[4], type;
 101
 102         dprintf(("audit_mountd_mount()\n"));
 103
 104         if (cannotaudit)
 105                 return;
 106
 107         (void) mutex_lock(&audit_mountd_lock);
 108
 109         (void) aug_save_namask();
 110
 111         (void) aug_save_me();
 112         aug_save_event(AUE_mountd_umount);
 113         aug_save_sorf(0);
 114         aug_save_text(clname);
 115         aug_save_path(path);
 116         (void) aug_get_machine(clname, buf, &type);
 117         aug_save_tid_ex(aug_get_port(), buf, type);
 118         (void) aug_audit();
 119         (void) mutex_unlock(&audit_mountd_lock);
 120 }