[LTP] [PATCH v4 1/4] Add stat04 test

Andrea Cervesato
2024-07-11T07:45:16Z

From: Andrea Cervesato <andrea.cervesato@suse.com>

This test has been extracted from symlink01 test and it checks that
stat() executed on file provide the same information of symlink linking
to it.

Reviewed-by: Li Wang <liwang@redhat.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
runtest/smoketest | 4 +-
runtest/syscalls | 4 +-
testcases/kernel/syscalls/stat/.gitignore | 2 +
testcases/kernel/syscalls/stat/stat04.c | 109 ++++++++++++++++++++++++++++++
4 files changed, 114 insertions(+), 5 deletions(-)

diff --git a/runtest/smoketest b/runtest/smoketest
index f6f14fd2b..aeb74c9ee 100644
--- a/runtest/smoketest
+++ b/runtest/smoketest
@@ -8,9 +8,7 @@ time01 time01
wait02 wait02
write01 write01
symlink01 symlink01
-stat04 symlink01 -T stat04
-utime07 utime07
-rename01A symlink01 -T rename01
+stat04 stat04
splice02 splice02 -s 20
df01_sh df01.sh
shell_test01 echo "SUCCESS" | shell_pipe01.sh
diff --git a/runtest/syscalls b/runtest/syscalls
index b6cadb2df..1e1203503 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1535,8 +1535,8 @@ stat02 stat02
stat02_64 stat02_64
stat03 stat03
stat03_64 stat03_64
-stat04 symlink01 -T stat04
-stat04_64 symlink01 -T stat04_64
+stat04 stat04
+stat04_64 stat04_64

statfs01 statfs01
statfs01_64 statfs01_64
diff --git a/testcases/kernel/syscalls/stat/.gitignore b/testcases/kernel/syscalls/stat/.gitignore
index fa0a4ce9f..0a62dc6ee 100644
--- a/testcases/kernel/syscalls/stat/.gitignore
+++ b/testcases/kernel/syscalls/stat/.gitignore
@@ -4,3 +4,5 @@
/stat02_64
/stat03
/stat03_64
+/stat04
+/stat04_64
diff --git a/testcases/kernel/syscalls/stat/stat04.c b/testcases/kernel/syscalls/stat/stat04.c
new file mode 100644
index 000000000..8dbf58a1d
--- /dev/null
+++ b/testcases/kernel/syscalls/stat/stat04.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
+ * Author: David Fenner, Jon Hendrickson
+ * Copyright (C) 2024 Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * This test checks that stat() executed on file provide the same information
+ * of symlink linking to it.
+ */
+
+#include <stdlib.h>
+#include "tst_test.h"
+#include "tst_safe_stdio.h"
+
+#define FILENAME "file.txt"
+#define MNTPOINT "mntpoint"
+#define SYMBNAME MNTPOINT"/file_symlink"
+
+static char *symb_path;
+static char *file_path;
+static struct stat *file_stat;
+static struct stat *symb_stat;
+
+static void run(void)
+{
+ SAFE_STAT(file_path, file_stat);
+ SAFE_STAT(symb_path, symb_stat);
+
+ TST_EXP_EQ_LI(file_stat->st_dev, symb_stat->st_dev);
+ TST_EXP_EQ_LI(file_stat->st_mode, symb_stat->st_mode);
+ TST_EXP_EQ_LI(file_stat->st_nlink, symb_stat->st_nlink);
+ TST_EXP_EQ_LI(file_stat->st_uid, symb_stat->st_uid);
+ TST_EXP_EQ_LI(file_stat->st_gid, symb_stat->st_gid);
+ TST_EXP_EQ_LI(file_stat->st_size, symb_stat->st_size);
+ TST_EXP_EQ_LI(file_stat->st_atime, symb_stat->st_atime);
+ TST_EXP_EQ_LI(file_stat->st_mtime, symb_stat->st_mtime);
+ TST_EXP_EQ_LI(file_stat->st_ctime, symb_stat->st_ctime);
+}
+
+static void setup(void)
+{
+ char opt_bsize[32];
+ char *tmpdir;
+ const char *const fs_opts[] = {opt_bsize, NULL};
+ struct stat sb;
+ int pagesize;
+ int fd;
+
+ tmpdir = tst_get_tmpdir();
+ SAFE_ASPRINTF(&file_path, "%s/%s", tmpdir, FILENAME);
+ SAFE_ASPRINTF(&symb_path, "%s/%s", tmpdir, SYMBNAME);
+ free(tmpdir);
+
+ /* change st_blksize / st_dev */
+ SAFE_STAT(".", &sb);
+ pagesize = sb.st_blksize == 4096 ? 1024 : 4096;
+
+ snprintf(opt_bsize, sizeof(opt_bsize), "-b %i", pagesize);
+ SAFE_MKFS(tst_device->dev, tst_device->fs_type, fs_opts, NULL);
+ SAFE_MOUNT(tst_device->dev, MNTPOINT, tst_device->fs_type, 0, 0);
+
+ SAFE_TOUCH(FILENAME, 0777, NULL);
+
+ /* change st_nlink */
+ SAFE_LINK(FILENAME, "linked_file");
+
+ /* change st_uid and st_gid */
+ SAFE_CHOWN(FILENAME, 1000, 1000);
+
+ /* change st_size */
+ fd = SAFE_OPEN(FILENAME, O_WRONLY, 0777);
+ tst_fill_fd(fd, 'a', TST_KB, 500);
+ SAFE_CLOSE(fd);
+
+ /* change st_atime / st_mtime / st_ctime */
+ usleep(1001000);
+
+ SAFE_SYMLINK(file_path, symb_path);
+}
+
+static void cleanup(void)
+{
+ if (file_path)
+ free(file_path);
+
+ if (symb_path)
+ free(symb_path);
+
+ if (tst_is_mounted(MNTPOINT))
+ SAFE_UMOUNT(MNTPOINT);
+}
+
+static struct tst_test test = {
+ .setup = setup,
+ .cleanup = cleanup,
+ .test_all = run,
+ .needs_root = 1,
+ .needs_device = 1,
+ .mntpoint = MNTPOINT,
+ .bufs = (struct tst_buffers []) {
+ {&file_stat, .size = sizeof(struct stat)},
+ {&symb_stat, .size = sizeof(struct stat)},
+ {}
+ }
+};

--
2.43.0