Testing statx syscall Timestamp fields

* statx_btime.c:The time before and after the execution of the create system call is noted.
It is checked whether the birth time returned by statx lies in this range.

* statx_atime.c:The time before and after the execution of the read system call is noted.
It is checked whether the access time returned by statx lies in this range.

* statx_mtime.c:The time before and after the execution of the write system call is noted.
It is checked whether the modification time returned by statx lies in this range.

* statx_ctime.c:The time before and after the execution of the chmod system call is noted.
It is checked whether the status change time returned by statx lies in this range.

Signed-off-by Subash <[email protected]>

Signed-off-by Vaishnavi.D <[email protected]>

---
 runtest/syscalls                                   | 10 +++
 testcases/kernel/syscalls/statx/.gitignore         |  9 ++
 testcases/kernel/syscalls/statx/Makefile           | 27 ++++++
 testcases/kernel/syscalls/statx/statx_atime.c      | 96 +++++++++++++++++++++
 testcases/kernel/syscalls/statx/statx_btime.c      | 90 ++++++++++++++++++++
 testcases/kernel/syscalls/statx/statx_ctime.c      | 88 ++++++++++++++++++++
 testcases/kernel/syscalls/statx/statx_mtime.c      | 97 ++++++++++++++++++++++
 testcases/kernel/syscalls/statx/timestamp_helper.c | 52 ++++++++++++
 testcases/kernel/syscalls/statx/timestamp_helper.h | 33 ++++++++
 9 files changed, 502 insertions(+)

testcases/kernel/syscalls/statx/.gitignore new file +5 -0

+/timestamp_helper
+/statx_atime
+/statx_btime
+/statx_ctime
+/statx_mtime

+++ b/testcases/kernel/syscalls/statx/statx_btime.c

(quoted diff) +1 -0

@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0 or later

testcases/kernel/syscalls/statx/statx_btime.c new file +62 -0

+#include "tst_timer.h"
+#include "tst_safe_macros.h"
+#include <sys/mount.h>
+#include "timestamp_helper.h"
+
+#define MOUNT_POINT "mount_ext"
+#define TEST_FILE MOUNT_POINT"/test_file.txt"
+
+static void create_file(void)
+{
+	int test_file_fd;
+
+	test_file_fd = SAFE_CREAT(TEST_FILE, 0666);
+	SAFE_CLOSE(test_file_fd);
+}
+
+static void test_statx_btime(void)
+{
+	struct statx buff;
+	struct timespec before_time;
+	struct timespec after_time;
+	struct timespec statx_time;
+
+	clock_get_time(&before_time);
+	clock_wait_tick();
+	create_file();
+	clock_wait_tick();
+	clock_get_time(&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);
+
+	statx_timestamp_to_timespec(&buff.stx_btime, &statx_time);
+
+	if (tst_timespec_lt(statx_time, before_time))
+		tst_res(TFAIL, "Birth time < before time");
+	else if (tst_timespec_lt(after_time, statx_time))
+		tst_res(TFAIL, "Birth time > after_time");
+	else
+		tst_res(TPASS, "Birth Time Passed\n");
+
+}
+
+void cleanup(void)
+{
+	SAFE_UNLINK(TEST_FILE);
+}
+
+static struct tst_test test = {
+	.test_all = test_statx_btime,
+	.min_kver = "4.11",
+	.needs_root = 1,
+	.needs_tmpdir = 1,
+	.mntpoint = MOUNT_POINT,
+	.mount_device = 1,
+	.dev_fs_type = "ext4",
+	.dev_min_size = 512,
+	.mnt_flags = MS_STRICTATIME,
+	.cleanup = cleanup,
+};

testcases/kernel/syscalls/statx/statx_ctime.c new file +88 -0

new file mode 100644
index 000000000..10aa2aa13
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0 or later
+/*
+ *  Copyright (c) Zilogic Systems Pvt. Ltd., 2018
+ *  Email : [email protected]
+ *
+ * This program is free software;  you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ * the GNU General Public License for more details.
+ */
+/*
+ * Test case for statx_ctime.
+ *
+ * DESCRIPTION : The time before and after the execution of the chmod
+ * 	system call is noted. It is checked whether the status change
+ * 	time returned by statx lies in this range.
+ *
+ */
+
+#include <stdio.h>
+#include "tst_test.h"
+#include "tst_timer.h"
+#include <sys/mount.h>
+#include "tst_safe_macros.h"
+#include "timestamp_helper.h"
+
+#define MOUNT_POINT "mount_ext"
+#define TEST_FILE MOUNT_POINT"/test_file.txt"
+
+static void setup(void)
+{
+	int test_file_fd;
+
+	test_file_fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0666);
+	SAFE_CLOSE(test_file_fd);
+}
+
+static void test_statx_ctime(void)
+{
+	struct statx buff;
+	struct timespec before_time;
+	struct timespec after_time;
+	struct timespec statx_time;
+
+	clock_get_time(&before_time);
+	clock_wait_tick();
+	SAFE_CHMOD(TEST_FILE, 0777);
+	clock_wait_tick();
+	clock_get_time(&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);
+
+	statx_timestamp_to_timespec(&buff.stx_ctime, &statx_time);
+
+	if (tst_timespec_lt(statx_time, before_time))
+		tst_res(TFAIL, "Status change time < before time");
+	else if (tst_timespec_lt(after_time, statx_time))
+		tst_res(TFAIL, "Status change time > after_time");
+	else
+		tst_res(TPASS, "Status change time Passed\n");
+}
+
+static void cleanup(void)
+{
+	SAFE_UNLINK(TEST_FILE);
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.cleanup = cleanup,
+	.test_all = test_statx_ctime,
+	.min_kver = "4.11",
+	.needs_root = 1,
+	.needs_tmpdir = 1,
+	.mntpoint = MOUNT_POINT,
+	.mount_device = 1,
+	.dev_fs_type = "ext4",
+	.dev_min_size = 512,
+	.mnt_flags = MS_STRICTATIME,
+};

testcases/kernel/syscalls/statx/statx_mtime.c new file +97 -0

new file mode 100644
index 000000000..9e5522dff
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0 or later
+/*
+ *  Copyright (c) Zilogic Systems Pvt. Ltd., 2018
+ *  Email : [email protected]
+ *
+ * This program is free software;  you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ * the GNU General Public License for more details.
+ */
+/*
+ * Test case for statx_mtime.
+ *
+ * DESCRIPTION : The time before and after the execution of the write
+ * 	system call is noted. It is checked whether the modified time
+ * 	returned by statx lies in this range.
+ *
+ */
+
+#include <stdio.h>
+#include "tst_test.h"
+#include "tst_timer.h"
+#include <sys/mount.h>
+#include "tst_safe_macros.h"
+#include "timestamp_helper.h"
+
+#define MOUNT_POINT "mount_ext"
+#define TEST_FILE MOUNT_POINT"/test_file.txt"
+#define SIZE 2
+
+static int test_file_fd;
+
+static void setup(void)
+{
+	test_file_fd = SAFE_OPEN(TEST_FILE, O_CREAT | O_RDWR, 0666);
+}
+
+static void write_file(void)
+{
+	char data[SIZE] = "hi";
+
+	SAFE_WRITE(0, test_file_fd, data, sizeof(data));
+}
+
+static void test_statx_mtime(void)
+{
+	struct statx buff;
+	struct timespec before_time;
+	struct timespec after_time;
+	struct timespec statx_time;
+
+
+	clock_get_time(&before_time);
+	clock_wait_tick();
+	write_file();
+	clock_wait_tick();
+	clock_get_time(&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);
+
+	statx_timestamp_to_timespec(&buff.stx_mtime, &statx_time);
+
+	if (tst_timespec_lt(statx_time, before_time))
+		tst_res(TFAIL, "Modification time < before time");
+	else if (tst_timespec_lt(after_time, statx_time))
+		tst_res(TFAIL, "Modification time > after_time");
+	else
+		tst_res(TPASS, "Modification time Passed\n");
+}
+
+static void cleanup(void)
+{
+	SAFE_CLOSE(test_file_fd);
+	SAFE_UNLINK(TEST_FILE);
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.cleanup = cleanup,
+	.test_all = test_statx_mtime,
+	.min_kver = "4.11",
+	.needs_root = 1,
+	.needs_tmpdir = 1,
+	.mntpoint = MOUNT_POINT,
+	.mount_device = 1,
+	.dev_fs_type = "ext4",
+	.dev_min_size = 512,
+	.mnt_flags = MS_STRICTATIME,
+};

testcases/kernel/syscalls/statx/timestamp_helper.c new file +10 -0

new file mode 100644
index 000000000..d3cca7528
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0 or later
+/*
+ * Copyright (c) Zilogic Systems Pvt. Ltd., 2018
+ * Email: [email protected]
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *

testcases/kernel/syscalls/statx/timestamp_helper.c new file +5 -0

+
+#ifndef TIMESTAMP_HELPER
+#define TIMESTAMP_HELPER
+
+#include <time.h>