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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) Zilogic Systems Pvt. Ltd., 2018
* Email : code@zilogic.com
*/
/*\
* [Description]
*
* Test the following file timestamps of statx syscall:
*
* - btime - The time before and after the execution of the create system call is noted.
*
* - mtime - The time before and after the execution of the write system call is noted.
*
* - atime - The time before and after the execution of the read system call is noted.
*
* - ctime - The time before and after the execution of the chmod system call is noted.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <time.h>
#include "tst_test.h"
#include "tst_safe_clocks.h"
#include "tst_safe_macros.h"
#include "tst_timer.h"
#include "lapi/stat.h"
#include "lapi/mount.h"
#include "lapi/fcntl.h"
#define MOUNT_POINT "mount_ext"
#define TEST_FILE MOUNT_POINT"/test_file.txt"
#define SIZE 2
static int fd;
static void timestamp_to_timespec(const struct statx_timestamp *timestamp,
struct timespec *timespec)
{
timespec->tv_sec = timestamp->tv_sec;
timespec->tv_nsec = timestamp->tv_nsec;
}
static void clock_wait_tick(void)
{
struct timespec res;
unsigned int usecs;
SAFE_CLOCK_GETRES(CLOCK_REALTIME_COARSE, &res);
usecs = tst_timespec_to_us(res);
usleep(usecs);
}
static void create_file(void)
{
if (fd > 0) {
SAFE_CLOSE(fd);
SAFE_UNLINK(TEST_FILE);
}
fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0666);
}
static void write_file(void)
{
char data[SIZE] = "hi";
SAFE_WRITE(SAFE_WRITE_ANY, fd, data, sizeof(data));
}
static void read_file(void)
{
char data[SIZE];
SAFE_READ(0, fd, data, sizeof(data));
}
static void change_mode(void)
{
SAFE_CHMOD(TEST_FILE, 0777);
}
static struct test_case {
void (*operation)(void);
char *op_name;
} tcases[] = {
{.operation = create_file,
.op_name = "Birth time"},
{.operation = write_file,
.op_name = "Modified time"},
{.operation = read_file,
.op_name = "Access time"},
{.operation = change_mode,
.op_name = "Change time"}
};
static void test_statx(unsigned int test_nr)
{
struct statx buff;
struct timespec before_time;
struct timespec after_time;
struct timespec statx_time = {0, 0};
struct test_case *tc = &tcases[test_nr];
SAFE_CLOCK_GETTIME(CLOCK_REALTIME_COARSE, &before_time);
clock_wait_tick();
tc->operation();
clock_wait_tick();
SAFE_CLOCK_GETTIME(CLOCK_REALTIME, &after_time);
TEST(statx(AT_FDCWD, TEST_FILE, 0, STATX_ALL, &buff));
if (TST_RET != 0) {
tst_brk(TFAIL | TTERRNO,
"statx(AT_FDCWD, %s, 0, STATX_ALL, &buff)",
TEST_FILE);
}
switch (test_nr) {
case 0:
timestamp_to_timespec(&buff.stx_btime, &statx_time);
break;
case 1:
timestamp_to_timespec(&buff.stx_mtime, &statx_time);
break;
case 2:
timestamp_to_timespec(&buff.stx_atime, &statx_time);
break;
case 3:
timestamp_to_timespec(&buff.stx_ctime, &statx_time);
break;
}
if (tst_timespec_lt(statx_time, before_time))
tst_res(TFAIL, "%s < before time", tc->op_name);
else if (tst_timespec_lt(after_time, statx_time))
tst_res(TFAIL, "%s > after_time", tc->op_name);
else
tst_res(TPASS, "%s Passed", tc->op_name);
}
static void cleanup(void)
{
if (fd > 0)
SAFE_CLOSE(fd);
}
static struct tst_test test = {
.cleanup = cleanup,
.tcnt = ARRAY_SIZE(tcases),
.test = test_statx,
.min_kver = "4.11",
.needs_root = 1,
.mntpoint = MOUNT_POINT,
.mount_device = 1,
.dev_fs_type = "ext4",
.dev_fs_opts = (const char *const []){"-I", "256", NULL},
.mnt_flags = MS_STRICTATIME,
};
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