1 /*
2  * Copyright (c) 2014 Fujitsu Ltd.
3  * Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it would be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12  *
13  * You should have received a copy of the GNU General Public License along
14  * with this program; if not, write the Free Software Foundation, Inc.,
15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16  */
17 /*
18  * DESCRIPTION
19  *  Verify that,
20  *   1. fd is not a valid file descriptor, EBADF would return.
21  *   2. old_value is not valid a pointer, EFAULT would return.
22  *   3. fd is not a valid timerfd file descriptor, EINVAL would return.
23  *   4. flags is invalid, EINVAL would return.
24  */
25 
26 #define _GNU_SOURCE
27 
28 #include <errno.h>
29 #include <sys/types.h>
30 #include <sys/stat.h>
31 #include <fcntl.h>
32 
33 #include "test.h"
34 #include "safe_macros.h"
35 #include "lapi/timerfd.h"
36 
37 char *TCID = "timerfd_settime01";
38 
39 static int bad_clockfd = -1;
40 static int clockfd;
41 static int fd;
42 
43 static struct test_case_t {
44 	int *fd;
45 	int flags;
46 	struct itimerspec *old_value;
47 	int exp_errno;
48 } test_cases[] = {
49 	{&bad_clockfd, 0, NULL, EBADF},
50 	{&clockfd, 0, (struct itimerspec *)-1, EFAULT},
51 	{&fd, 0, NULL, EINVAL},
52 	{&clockfd, -1, NULL, EINVAL},
53 };
54 
55 int TST_TOTAL = ARRAY_SIZE(test_cases);
56 static void setup(void);
57 static void timerfd_settime_verify(const struct test_case_t *);
58 static void cleanup(void);
59 static struct itimerspec new_value;
60 
61 int main(int argc, char *argv[])
62 {
63 	int lc;
64 	int i;
65 
66 	tst_parse_opts(argc, argv, NULL, NULL);
67 
68 	setup();
69 
70 	for (lc = 0; TEST_LOOPING(lc); lc++) {
71 		tst_count = 0;
72 		for (i = 0; i < TST_TOTAL; i++)
73 			timerfd_settime_verify(&test_cases[i]);
74 	}
75 
76 	cleanup();
77 	tst_exit();
78 }
79 
80 static void setup(void)
81 {
82 	if ((tst_kvercmp(2, 6, 25)) < 0)
83 		tst_brkm(TCONF, NULL, "This test needs kernel 2.6.25 or newer");
84 
85 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
86 
87 	TEST_PAUSE;
88 
89 	tst_tmpdir();
90 
91 	clockfd = timerfd_create(CLOCK_REALTIME, 0);
92 	if (clockfd == -1)
93 		tst_brkm(TBROK | TERRNO, cleanup, "timerfd_create() fail");
94 
95 	fd = SAFE_OPEN(cleanup, "test_file", O_RDWR | O_CREAT, 0644);
96 }
97 
98 static void timerfd_settime_verify(const struct test_case_t *test)
99 {
100 	TEST(timerfd_settime(*test->fd, test->flags, &new_value,
101 			     test->old_value));
102 
103 	if (TEST_RETURN != -1) {
104 		tst_resm(TFAIL, "timerfd_settime() succeeded unexpectedly");
105 		return;
106 	}
107 
108 	if (TEST_ERRNO == test->exp_errno) {
109 		tst_resm(TPASS | TTERRNO,
110 			 "timerfd_settime() failed as expected");
111 	} else {
112 		tst_resm(TFAIL | TTERRNO,
113 			 "timerfd_settime() failed unexpectedly; expected: "
114 			 "%d - %s", test->exp_errno, strerror(test->exp_errno));
115 	}
116 }
117 
118 static void cleanup(void)
119 {
120 	if (clockfd > 0)
121 		close(clockfd);
122 
123 	if (fd > 0)
124 		close(fd);
125 
126 	tst_rmdir();
127 }
128