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 #include "lapi/posix_clocks.h"
49
50 #define MOUNT_POINT "mount_ext"
51 #define TEST_FILE MOUNT_POINT"/test_file.txt"
52 #define SIZE 2
53
54 static int fd;
55
timestamp_to_timespec(const struct statx_timestamp * timestamp,struct timespec * timespec)56 static void timestamp_to_timespec(const struct statx_timestamp *timestamp,
57 struct timespec *timespec)
58 {
59 timespec->tv_sec = timestamp->tv_sec;
60 timespec->tv_nsec = timestamp->tv_nsec;
61 }
62
clock_wait_tick(void)63 static void clock_wait_tick(void)
64 {
65 struct timespec res;
66 unsigned int usecs;
67
68 SAFE_CLOCK_GETRES(CLOCK_REALTIME_COARSE, &res);
69 usecs = tst_timespec_to_us(res);
70
71 usleep(usecs);
72 }
73
create_file(void)74 static void create_file(void)
75 {
76 if (fd > 0) {
77 SAFE_CLOSE(fd);
78 SAFE_UNLINK(TEST_FILE);
79 }
80 fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0666);
81 }
82
write_file(void)83 static void write_file(void)
84 {
85 char data[SIZE] = "hi";
86
87 SAFE_WRITE(0, fd, data, sizeof(data));
88 }
89
read_file(void)90 static void read_file(void)
91 {
92 char data[SIZE];
93
94 SAFE_READ(0, fd, data, sizeof(data));
95 }
96
change_mode(void)97 static void change_mode(void)
98 {
99 SAFE_CHMOD(TEST_FILE, 0777);
100 }
101
102 static struct test_case {
103 void (*operation)(void);
104 char *op_name;
105 } tcases[] = {
106 {.operation = create_file,
107 .op_name = "Birth time"},
108 {.operation = write_file,
109 .op_name = "Modified time"},
110 {.operation = read_file,
111 .op_name = "Access time"},
112 {.operation = change_mode,
113 .op_name = "Change time"}
114 };
115
test_statx(unsigned int test_nr)116 static void test_statx(unsigned int test_nr)
117 {
118 struct statx buff;
119 struct timespec before_time;
120 struct timespec after_time;
121 struct timespec statx_time = {0, 0};
122
123 struct test_case *tc = &tcases[test_nr];
124
125 SAFE_CLOCK_GETTIME(CLOCK_REALTIME_COARSE, &before_time);
126 clock_wait_tick();
127 tc->operation();
128 clock_wait_tick();
129 SAFE_CLOCK_GETTIME(CLOCK_REALTIME_COARSE, &after_time);
130
131 TEST(statx(AT_FDCWD, TEST_FILE, 0, STATX_ALL, &buff));
132 if (TST_RET != 0) {
133 tst_brk(TFAIL | TTERRNO,
134 "statx(AT_FDCWD, %s, 0, STATX_ALL, &buff)",
135 TEST_FILE);
136 }
137
138 switch (test_nr) {
139 case 0:
140 timestamp_to_timespec(&buff.stx_btime, &statx_time);
141 break;
142 case 1:
143 timestamp_to_timespec(&buff.stx_mtime, &statx_time);
144 break;
145 case 2:
146 timestamp_to_timespec(&buff.stx_atime, &statx_time);
147 break;
148 case 3:
149 timestamp_to_timespec(&buff.stx_ctime, &statx_time);
150 break;
151 }
152 if (tst_timespec_lt(statx_time, before_time))
153 tst_res(TFAIL, "%s < before time", tc->op_name);
154 else if (tst_timespec_lt(after_time, statx_time))
155 tst_res(TFAIL, "%s > after_time", tc->op_name);
156 else
157 tst_res(TPASS, "%s Passed", tc->op_name);
158 }
159
160
cleanup(void)161 static void cleanup(void)
162 {
163 if (fd > 0)
164 SAFE_CLOSE(fd);
165 }
166
167 static struct tst_test test = {
168 .cleanup = cleanup,
169 .tcnt = ARRAY_SIZE(tcases),
170 .test = test_statx,
171 .min_kver = "4.11",
172 .needs_root = 1,
173 .needs_tmpdir = 1,
174 .mntpoint = MOUNT_POINT,
175 .mount_device = 1,
176 .dev_fs_type = "ext4",
177 .dev_fs_opts = (const char *const []){"-I", "256", NULL},
178 .mnt_flags = MS_STRICTATIME,
179 };
180