audit.c revision 185573 
1/*-
2 * Copyright (c) 2005-2008 Apple Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
15 *     its contributors may be used to endorse or promote products derived
16 *     from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $P4: //depot/projects/trustedbsd/openbsm/bin/audit/audit.c#11 $
30 */
31/*
32 * Program to trigger the audit daemon with a message that is either:
33 *    - Open a new audit log file
34 *    - Read the audit control file and take action on it
35 *    - Close the audit log file and exit
36 *
37 */
38
39#include <sys/types.h>
40#include <config/config.h>
41#ifdef HAVE_FULL_QUEUE_H
42#include <sys/queue.h>
43#else /* !HAVE_FULL_QUEUE_H */
44#include <compat/queue.h>
45#endif /* !HAVE_FULL_QUEUE_H */
46#include <sys/uio.h>
47
48#include <bsm/libbsm.h>
49
50#include <fcntl.h>
51#include <stdio.h>
52#include <stdlib.h>
53#include <unistd.h>
54
55
56static int send_trigger(unsigned int);
57
58#ifdef USE_MACH_IPC
59#include <mach/mach.h>
60#include <servers/netname.h>
61#include <mach/message.h>
62#include <mach/port.h>
63#include <mach/mach_error.h>
64#include <mach/host_special_ports.h>
65#include <servers/bootstrap.h>
66
67#include "auditd_control_user.h"
68
69static int
70send_trigger(unsigned int trigger)
71{
72	mach_port_t     serverPort;
73	kern_return_t	error;
74
75	error = host_get_audit_control_port(mach_host_self(), &serverPort);
76	if (error != KERN_SUCCESS) {
77		mach_error("Cannot get auditd_control Mach port: ", error);
78		return (-1);
79	}
80
81	error = auditd_control(serverPort, trigger);
82	if (error != KERN_SUCCESS) {
83		mach_error("Error sending trigger: ", error);
84		return (-1);
85	}
86
87	return (0);
88}
89
90#else /* ! USE_MACH_IPC */
91
92static int
93send_trigger(unsigned int trigger)
94{
95	int error;
96
97	error = auditon(A_SENDTRIGGER, &trigger, sizeof(trigger));
98	if (error != 0) {
99		perror("Error sending trigger");
100		return (-1);
101	}
102
103	return (0);
104}
105#endif /* ! USE_MACH_IPC */
106
107static void
108usage(void)
109{
110
111	(void)fprintf(stderr, "Usage: audit -n | -s | -t \n");
112	exit(-1);
113}
114
115/*
116 * Main routine to process command line options.
117 */
118int
119main(int argc, char **argv)
120{
121	int ch;
122	unsigned int trigger = 0;
123
124	if (argc != 2)
125		usage();
126
127	while ((ch = getopt(argc, argv, "nst")) != -1) {
128		switch(ch) {
129
130		case 'n':
131			trigger = AUDIT_TRIGGER_ROTATE_USER;
132			break;
133
134		case 's':
135			trigger = AUDIT_TRIGGER_READ_FILE;
136			break;
137
138		case 't':
139			trigger = AUDIT_TRIGGER_CLOSE_AND_DIE;
140			break;
141
142		case '?':
143		default:
144			usage();
145			break;
146		}
147	}
148	if (send_trigger(trigger) < 0)
149		exit(-1);
150
151	printf("Trigger sent.\n");
152	exit (0);
153}
154