1 // SPDX-License-Identifier: GPL-2.0 or later
2 /*
3 * Copyright (c) Zilogic Systems Pvt. Ltd., 2018
4 * Email : code@zilogic.com
5 */
6
7 /*
8 * DESCRIPTION :
9 *
10 * Test-Case 1 : Testing btime
11 * flow : The time before and after the execution of the create
12 * system call is noted.
13 * It is checked whether the birth time returned by statx lies in
14 * this range.
15 *
16 * Test-Case 2 : Testing mtime
17 * flow : The time before and after the execution of the write
18 * system call is noted.
19 * It is checked whether the modification time returned
20 * by statx lies in this range.
21 *
22 * Test-Case 3 : Testing atime
23 * flow : The time before and after the execution of the read
24 * system call is noted.
25 * It is checked whether the access time returned by statx lies in
26 * this range.
27 *
28 * Test-Case 4 : Testing ctime
29 * flow : The time before and after the execution of the chmod
30 * system call is noted.
31 * It is checked whether the status change time returned by statx
32 * lies in this range.
33 *
34 */
35
36 #define _GNU_SOURCE
37 #include <stdio.h>
38 #include <sys/mount.h>
39 #include <time.h>
40
41 #include "tst_test.h"
42 #include "tst_safe_clocks.h"
43 #include "tst_safe_macros.h"
44 #include "tst_timer.h"
45 #include "lapi/stat.h"
46 #include "lapi/mount.h"
47 #include "lapi/fcntl.h"
48
49 #define MOUNT_POINT "mount_ext"
50 #define TEST_FILE MOUNT_POINT"/test_file.txt"
51 #define SIZE 2
52
53 static int fd;
54
timestamp_to_timespec(const struct statx_timestamp * timestamp,struct timespec * timespec)55 static void timestamp_to_timespec(const struct statx_timestamp *timestamp,
56 struct timespec *timespec)
57 {
58 timespec->tv_sec = timestamp->tv_sec;
59 timespec->tv_nsec = timestamp->tv_nsec;
60 }
61
clock_wait_tick(void)62 static void clock_wait_tick(void)
63 {
64 struct timespec res;
65 unsigned int usecs;
66
67 SAFE_CLOCK_GETRES(CLOCK_REALTIME_COARSE, &res);
68 usecs = tst_timespec_to_us(res);
69
70 usleep(usecs);
71 }
72
create_file(void)73 static void create_file(void)
74 {
75 if (fd > 0) {
76 SAFE_CLOSE(fd);
77 SAFE_UNLINK(TEST_FILE);
78 }
79 fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0666);
80 }
81
write_file(void)82 static void write_file(void)
83 {
84 char data[SIZE] = "hi";
85
86 SAFE_WRITE(0, fd, data, sizeof(data));
87 }
88
read_file(void)89 static void read_file(void)
90 {
91 char data[SIZE];
92
93 SAFE_READ(0, fd, data, sizeof(data));
94 }
95
change_mode(void)96 static void change_mode(void)
97 {
98 SAFE_CHMOD(TEST_FILE, 0777);
99 }
100
101 static struct test_case {
102 void (*operation)(void);
103 char *op_name;
104 } tcases[] = {
105 {.operation = create_file,
106 .op_name = "Birth time"},
107 {.operation = write_file,
108 .op_name = "Modified time"},
109 {.operation = read_file,
110 .op_name = "Access time"},
111 {.operation = change_mode,
112 .op_name = "Change time"}
113 };
114
test_statx(unsigned int test_nr)115 static void test_statx(unsigned int test_nr)
116 {
117 struct statx buff;
118 struct timespec before_time;
119 struct timespec after_time;
120 struct timespec statx_time = {0, 0};
121
122 struct test_case *tc = &tcases[test_nr];
123
124 SAFE_CLOCK_GETTIME(CLOCK_REALTIME_COARSE, &before_time);
125 clock_wait_tick();
126 tc->operation();
127 clock_wait_tick();
128 SAFE_CLOCK_GETTIME(CLOCK_REALTIME_COARSE, &after_time);
129
130 TEST(statx(AT_FDCWD, TEST_FILE, 0, STATX_ALL, &buff));
131 if (TST_RET != 0) {
132 tst_brk(TFAIL | TTERRNO,
133 "statx(AT_FDCWD, %s, 0, STATX_ALL, &buff)",
134 TEST_FILE);
135 }
136
137 switch (test_nr) {
138 case 0:
139 timestamp_to_timespec(&buff.stx_btime, &statx_time);
140 break;
141 case 1:
142 timestamp_to_timespec(&buff.stx_mtime, &statx_time);
143 break;
144 case 2:
145 timestamp_to_timespec(&buff.stx_atime, &statx_time);
146 break;
147 case 3:
148 timestamp_to_timespec(&buff.stx_ctime, &statx_time);
149 break;
150 }
151 if (tst_timespec_lt(statx_time, before_time))
152 tst_res(TFAIL, "%s < before time", tc->op_name);
153 else if (tst_timespec_lt(after_time, statx_time))
154 tst_res(TFAIL, "%s > after_time", tc->op_name);
155 else
156 tst_res(TPASS, "%s Passed", tc->op_name);
157 }
158
159
cleanup(void)160 static void cleanup(void)
161 {
162 if (fd > 0)
163 SAFE_CLOSE(fd);
164 }
165
166 static struct tst_test test = {
167 .cleanup = cleanup,
168 .tcnt = ARRAY_SIZE(tcases),
169 .test = test_statx,
170 .min_kver = "4.11",
171 .needs_root = 1,
172 .mntpoint = MOUNT_POINT,
173 .mount_device = 1,
174 .dev_fs_type = "ext4",
175 .dev_fs_opts = (const char *const []){"-I", "256", NULL},
176 .mnt_flags = MS_STRICTATIME,
177 };
178