1/*-
2 * Copyright (c) 2018 Aniket Pandey
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * SUCH DAMAGE.
24 */
25
26#include <sys/ioctl.h>
27
28#include <bsm/libbsm.h>
29#include <security/audit/audit_ioctl.h>
30
31#include <atf-c.h>
32#include <fcntl.h>
33#include <unistd.h>
34
35#include "utils.h"
36
37static int filedesc;
38static char ioregex[80];
39static const char *auclass = "io";
40static struct pollfd fds[1];
41static unsigned long request = AUDITPIPE_FLUSH;
42
43
44ATF_TC_WITH_CLEANUP(ioctl_success);
45ATF_TC_HEAD(ioctl_success, tc)
46{
47	atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
48					"ioctl(2) call");
49}
50
51ATF_TC_BODY(ioctl_success, tc)
52{
53	/* auditpipe(4) supports quite a few ioctls */
54	ATF_REQUIRE((filedesc = open("/dev/auditpipe", O_RDONLY)) != -1);
55	/* Prepare the regex to be checked in the audit record */
56	snprintf(ioregex, sizeof(ioregex),
57	"ioctl.*%#lx.*%#x.*return,success", request, filedesc);
58
59	FILE *pipefd = setup(fds, auclass);
60	ATF_REQUIRE(ioctl(filedesc, request) != -1);
61	check_audit(fds, ioregex, pipefd);
62	close(filedesc);
63}
64
65ATF_TC_CLEANUP(ioctl_success, tc)
66{
67	cleanup();
68}
69
70
71ATF_TC_WITH_CLEANUP(ioctl_failure);
72ATF_TC_HEAD(ioctl_failure, tc)
73{
74	atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
75					"ioctl(2) call");
76}
77
78ATF_TC_BODY(ioctl_failure, tc)
79{
80	snprintf(ioregex, sizeof(ioregex),
81	"ioctl.*%#lx.*return,failure : Bad file descriptor", request);
82
83	FILE *pipefd = setup(fds, auclass);
84	/* Failure reason: Invalid file descriptor */
85	ATF_REQUIRE_EQ(-1, ioctl(-1, request));
86	check_audit(fds, ioregex, pipefd);
87}
88
89ATF_TC_CLEANUP(ioctl_failure, tc)
90{
91	cleanup();
92}
93
94
95ATF_TP_ADD_TCS(tp)
96{
97	ATF_TP_ADD_TC(tp, ioctl_success);
98	ATF_TP_ADD_TC(tp, ioctl_failure);
99
100	return (atf_no_error());
101}
102