xref: /freebsd/tools/regression/security/cap_test/cap_test_sysctl.c (revision f126890ac5386406dadf7c4cfa9566cbb56537c5)
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 
28 /*
29  * Test that various sysctls are (and aren't) available on capability mode.
30  */
31 
32 #include <sys/types.h>
33 #include <sys/capsicum.h>
34 #include <sys/errno.h>
35 #include <sys/sysctl.h>
36 #include <sys/wait.h>
37 
38 #include <err.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <unistd.h>
42 
43 #include "cap_test.h"
44 
45 /*
46  * Certain sysctls are permitted in capability mode, but most are not.  Test
47  * for the ones that should be, and try one or two that shouldn't.
48  */
49 int
50 test_sysctl(void)
51 {
52 	int i, oid[2];
53 	int success = PASSED;
54 	size_t len;
55 
56 	oid[0] = CTL_KERN;
57 	oid[1] = KERN_OSRELDATE;
58 	len = sizeof(i);
59 	CHECK(sysctl(oid, 2, &i, &len, NULL, 0) == 0);
60 
61 	return (success);
62 }
63