xref: /freebsd/tools/regression/security/cap_test/cap_test_sysctl.c (revision 6be3386466ab79a84b48429ae66244f21526d3df)
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  * $FreeBSD$
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("$FreeBSD$");
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  */
54 int
55 test_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