xref: /freebsd/tests/sys/audit/file-write.c (revision ab40f58ccfe6c07ebefddc72f4661a52fe746353)
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 
33 static struct pollfd fds[1];
34 static mode_t mode = 0777;
35 static int filedesc;
36 static off_t offlen = 0;
37 static const char *path = "fileforaudit";
38 static const char *errpath = "dirdoesnotexist/fileforaudit";
39 static const char *successreg = "fileforaudit.*return,success";
40 static const char *failurereg = "fileforaudit.*return,failure";
41 
42 
43 ATF_TC_WITH_CLEANUP(truncate_success);
44 ATF_TC_HEAD(truncate_success, tc)
45 {
46 	atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
47 					"truncate(2) call");
48 }
49 
50 ATF_TC_BODY(truncate_success, tc)
51 {
52 	/* File needs to exist to call truncate(2) */
53 	ATF_REQUIRE((filedesc = open(path, O_CREAT, mode)) != -1);
54 	FILE *pipefd = setup(fds, "fw");
55 	ATF_REQUIRE_EQ(0, truncate(path, offlen));
56 	check_audit(fds, successreg, pipefd);
57 	close(filedesc);
58 }
59 
60 ATF_TC_CLEANUP(truncate_success, tc)
61 {
62 	cleanup();
63 }
64 
65 
66 ATF_TC_WITH_CLEANUP(truncate_failure);
67 ATF_TC_HEAD(truncate_failure, tc)
68 {
69 	atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
70 					"truncate(2) call");
71 }
72 
73 ATF_TC_BODY(truncate_failure, tc)
74 {
75 	FILE *pipefd = setup(fds, "fw");
76 	/* Failure reason: file does not exist */
77 	ATF_REQUIRE_EQ(-1, truncate(errpath, offlen));
78 	check_audit(fds, failurereg, pipefd);
79 }
80 
81 ATF_TC_CLEANUP(truncate_failure, tc)
82 {
83 	cleanup();
84 }
85 
86 
87 ATF_TC_WITH_CLEANUP(ftruncate_success);
88 ATF_TC_HEAD(ftruncate_success, tc)
89 {
90 	atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
91 					"ftruncate(2) call");
92 }
93 
94 ATF_TC_BODY(ftruncate_success, tc)
95 {
96 	const char *regex = "ftruncate.*return,success";
97 	/* Valid file descriptor needs to exist to call ftruncate(2) */
98 	ATF_REQUIRE((filedesc = open(path, O_CREAT | O_RDWR)) != -1);
99 	FILE *pipefd = setup(fds, "fw");
100 	ATF_REQUIRE_EQ(0, ftruncate(filedesc, offlen));
101 	check_audit(fds, regex, pipefd);
102 	close(filedesc);
103 }
104 
105 ATF_TC_CLEANUP(ftruncate_success, tc)
106 {
107 	cleanup();
108 }
109 
110 
111 ATF_TC_WITH_CLEANUP(ftruncate_failure);
112 ATF_TC_HEAD(ftruncate_failure, tc)
113 {
114 	atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
115 					"ftruncate(2) call");
116 }
117 
118 ATF_TC_BODY(ftruncate_failure, tc)
119 {
120 	const char *regex = "ftruncate.*return,failure";
121 	FILE *pipefd = setup(fds, "fw");
122 	/* Failure reason: bad file descriptor */
123 	ATF_REQUIRE_EQ(-1, ftruncate(-1, offlen));
124 	check_audit(fds, regex, pipefd);
125 }
126 
127 ATF_TC_CLEANUP(ftruncate_failure, tc)
128 {
129 	cleanup();
130 }
131 
132 
133 ATF_TP_ADD_TCS(tp)
134 {
135 	ATF_TP_ADD_TC(tp, truncate_success);
136 	ATF_TP_ADD_TC(tp, truncate_failure);
137 	ATF_TP_ADD_TC(tp, ftruncate_success);
138 	ATF_TP_ADD_TC(tp, ftruncate_failure);
139 
140 	return (atf_no_error());
141 }
142