1/*-
2 * Copyright 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 * $FreeBSD$
26 */
27
28#include <atf-c.h>
29#include <fcntl.h>
30
31#include "utils.h"
32
33static struct pollfd fds[1];
34static char buff[1024];
35static const char *path = "fileforaudit";
36static const char *successreg = "fileforaudit.*return,success";
37static const char *failurereg = "fileforaudit.*return,failure";
38
39
40ATF_TC_WITH_CLEANUP(readlink_success);
41ATF_TC_HEAD(readlink_success, tc)
42{
43	atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
44					"readlink(2) call");
45}
46
47ATF_TC_BODY(readlink_success, tc)
48{
49	memset(buff, 0, sizeof(buff));
50	ATF_REQUIRE_EQ(0, symlink("symlink", path));
51	FILE *pipefd = setup(fds, "fr");
52	ATF_REQUIRE(readlink(path, buff, sizeof(buff)-1) != -1);
53	check_audit(fds, successreg, pipefd);
54}
55
56ATF_TC_CLEANUP(readlink_success, tc)
57{
58	cleanup();
59}
60
61
62ATF_TC_WITH_CLEANUP(readlink_failure);
63ATF_TC_HEAD(readlink_failure, tc)
64{
65	atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
66					"readlink(2) call");
67}
68
69ATF_TC_BODY(readlink_failure, tc)
70{
71	memset(buff, 0, sizeof(buff));
72	FILE *pipefd = setup(fds, "fr");
73	/* Failure reason: symbolic link does not exist */
74	ATF_REQUIRE_EQ(-1, readlink(path, buff, sizeof(buff)-1));
75	check_audit(fds, failurereg, pipefd);
76}
77
78ATF_TC_CLEANUP(readlink_failure, tc)
79{
80	cleanup();
81}
82
83
84ATF_TC_WITH_CLEANUP(readlinkat_success);
85ATF_TC_HEAD(readlinkat_success, tc)
86{
87	atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
88					"readlinkat(2) call");
89}
90
91ATF_TC_BODY(readlinkat_success, tc)
92{
93	memset(buff, 0, sizeof(buff));
94	ATF_REQUIRE_EQ(0, symlink("symlink", path));
95	FILE *pipefd = setup(fds, "fr");
96	ATF_REQUIRE(readlinkat(AT_FDCWD, path, buff, sizeof(buff)-1) != -1);
97	check_audit(fds, successreg, pipefd);
98}
99
100ATF_TC_CLEANUP(readlinkat_success, tc)
101{
102	cleanup();
103}
104
105
106ATF_TC_WITH_CLEANUP(readlinkat_failure);
107ATF_TC_HEAD(readlinkat_failure, tc)
108{
109	atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
110					"readlinkat(2) call");
111}
112
113ATF_TC_BODY(readlinkat_failure, tc)
114{
115	memset(buff, 0, sizeof(buff));
116	FILE *pipefd = setup(fds, "fr");
117	/* Failure reason: symbolic link does not exist */
118	ATF_REQUIRE_EQ(-1, readlinkat(AT_FDCWD, path, buff, sizeof(buff)-1));
119	check_audit(fds, failurereg, pipefd);
120}
121
122ATF_TC_CLEANUP(readlinkat_failure, tc)
123{
124	cleanup();
125}
126
127
128ATF_TP_ADD_TCS(tp)
129{
130	ATF_TP_ADD_TC(tp, readlink_success);
131	ATF_TP_ADD_TC(tp, readlink_failure);
132	ATF_TP_ADD_TC(tp, readlinkat_success);
133	ATF_TP_ADD_TC(tp, readlinkat_failure);
134
135	return (atf_no_error());
136}
137