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
37 static int filedesc;
38 static char ioregex[80];
39 static const char *auclass = "io";
40 static struct pollfd fds[1];
41 static unsigned long request = AUDITPIPE_FLUSH;
42
43
44 ATF_TC_WITH_CLEANUP(ioctl_success);
ATF_TC_HEAD(ioctl_success,tc)45 ATF_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
ATF_TC_BODY(ioctl_success,tc)51 ATF_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
ATF_TC_CLEANUP(ioctl_success,tc)65 ATF_TC_CLEANUP(ioctl_success, tc)
66 {
67 cleanup();
68 }
69
70
71 ATF_TC_WITH_CLEANUP(ioctl_failure);
ATF_TC_HEAD(ioctl_failure,tc)72 ATF_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
ATF_TC_BODY(ioctl_failure,tc)78 ATF_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
ATF_TC_CLEANUP(ioctl_failure,tc)89 ATF_TC_CLEANUP(ioctl_failure, tc)
90 {
91 cleanup();
92 }
93
94
ATF_TP_ADD_TCS(tp)95 ATF_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