cap_test_sysctl.c revision 280250 
1/*-
2 * Copyright (c) 2008-2011 Robert N. M. Watson
3 * Copyright (c) 2011 Jonathan Anderson
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: stable/10/tools/regression/security/cap_test/cap_test_sysctl.c 280250 2015-03-19 12:32:48Z rwatson $
28 */
29
30/*
31 * Test that various sysctls are (and aren't) available on capability mode.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: stable/10/tools/regression/security/cap_test/cap_test_sysctl.c 280250 2015-03-19 12:32:48Z rwatson $");
36
37#include <sys/types.h>
38#include <sys/capsicum.h>
39#include <sys/errno.h>
40#include <sys/sysctl.h>
41#include <sys/wait.h>
42
43#include <err.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <unistd.h>
47
48#include "cap_test.h"
49
50/*
51 * Certain sysctls are permitted in capability mode, but most are not.  Test
52 * for the ones that should be, and try one or two that shouldn't.
53 */
54int
55test_sysctl(void)
56{
57	int i, oid[2];
58	int success = PASSED;
59	size_t len;
60
61	oid[0] = CTL_KERN;
62	oid[1] = KERN_OSRELDATE;
63	len = sizeof(i);
64	CHECK(sysctl(oid, 2, &i, &len, NULL, 0) == 0);
65
66	return (success);
67}
68