Add new testcase to verify the flag UMOUNT_NOFOLLOW of umount2(2).
Signed-off-by: Guangwen Feng <fenggw-f...@cn.fujitsu.com>
---
runtest/ltplite | 1 +
runtest/syscalls | 1 +
testcases/kernel/syscalls/.gitignore | 1 +
testcases/kernel/syscalls/umount2/umount2_03.c | 164 +++++++++++++++++++++++++
4 files changed, 167 insertions(+)
create mode 100644 testcases/kernel/syscalls/umount2/umount2_03.c
diff --git a/runtest/ltplite b/runtest/ltplite
index b4b2662..7f3efdc 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -969,6 +969,7 @@ unlink08 unlink08
umount2_01 umount2_01
umount2_02 umount2_02
+umount2_03 umount2_03
ustat01 ustat01
ustat02 ustat02
diff --git a/runtest/syscalls b/runtest/syscalls
index 2b49db4..25d10ac 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1319,6 +1319,7 @@ umount03 umount03
umount2_01 umount2_01
umount2_02 umount2_02
+umount2_03 umount2_03
ustat01 ustat01
ustat02 ustat02
diff --git a/testcases/kernel/syscalls/.gitignore
b/testcases/kernel/syscalls/.gitignore
index 3f14678..f3a18ab 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -1007,6 +1007,7 @@
/umount/umount03
/umount2/umount2_01
/umount2/umount2_02
+/umount2/umount2_03
/uname/uname01
/uname/uname02
/uname/uname03
diff --git a/testcases/kernel/syscalls/umount2/umount2_03.c
b/testcases/kernel/syscalls/umount2/umount2_03.c
new file mode 100644
index 0000000..217c5d1
--- /dev/null
+++ b/testcases/kernel/syscalls/umount2/umount2_03.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright (c) 2015 Fujitsu Ltd.
+ * Author: Guangwen Feng <fenggw-f...@cn.fujitsu.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU General Public License
+ * alone with this program.
+ */
+
+/*
+ * DESCRIPTION
+ * Test for feature UMOUNT_NOFOLLOW of umount2().
+ * "Don't dereference target if it is a symbolic link,
+ * and fails with the error EINVAL."
+ */
+
+#include <errno.h>
+#include <sys/mount.h>
+
+#include "test.h"
+#include "safe_macros.h"
+#include "lapi/mount.h"
+
+#define DIR_MODE (S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH)
+#define MNTPOINT "mntpoint"
+#define SYMLINK "symlink"
+
+static void setup(void);
+static void test_umount2(int i);
+static void verify_failure(int i);
+static void verify_success(int i);
+static void cleanup(void);
+
+static const char *device;
+static const char *fs_type;
+
+static int mount_flag;
+
+static struct test_case_t {
+ const char *mntpoint;
+ int exp_errno;
+ const char *desc;
+} test_cases[] = {
+ {SYMLINK, EINVAL,
+ "umount2('symlink', UMOUNT_NOFOLLOW) expected EINVAL"},
+ {MNTPOINT, 0,
+ "umount2('mntpoint', UMOUNT_NOFOLLOW) expected success"},
+};
+
+char *TCID = "umount2_03";
+int TST_TOTAL = ARRAY_SIZE(test_cases);
+
+int main(int ac, char **av)
+{
+ int lc;
+ int tc;
+
+ tst_parse_opts(ac, av, NULL, NULL);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ tst_count = 0;
+
+ for (tc = 0; tc < TST_TOTAL; tc++)
+ test_umount2(tc);
+ }
+
+ cleanup();
+ tst_exit();
+}
+
+static void setup(void)
+{
+ tst_require_root();
+
+ if ((tst_kvercmp(2, 6, 34)) < 0) {
+ tst_brkm(TCONF, NULL, "This test can only run on kernels "
+ "that are 2.6.34 or higher");
+ }
+
+ tst_sig(NOFORK, DEF_HANDLER, NULL);
+
+ tst_tmpdir();
+
+ fs_type = tst_dev_fs_type();
+ device = tst_acquire_device(cleanup);
+
+ if (!device)
+ tst_brkm(TCONF, cleanup, "Failed to obtain block device");
+
+ tst_mkfs(cleanup, device, fs_type, NULL);
+
+ SAFE_MKDIR(cleanup, MNTPOINT, DIR_MODE);
+
+ SAFE_SYMLINK(cleanup, MNTPOINT, SYMLINK);
+
+ TEST_PAUSE;
+}
+
+static void test_umount2(int i)
+{
+ SAFE_MOUNT(cleanup, device, MNTPOINT, fs_type, 0, NULL);
+ mount_flag = 1;
+
+ TEST(umount2(test_cases[i].mntpoint, UMOUNT_NOFOLLOW));
+
+ if (test_cases[i].exp_errno != 0)
+ verify_failure(i);
+ else
+ verify_success(i);
+
+ if (mount_flag) {
+ SAFE_UMOUNT(cleanup, MNTPOINT);
+ mount_flag = 0;
+ }
+}
+
+static void verify_failure(int i)
+{
+ if (TEST_RETURN == 0) {
+ tst_resm(TFAIL, "%s passed unexpectedly", test_cases[i].desc);
+ mount_flag = 0;
+ return;
+ }
+
+ if (TEST_ERRNO != test_cases[i].exp_errno) {
+ tst_resm(TFAIL | TTERRNO, "%s failed unexpectedly",
+ test_cases[i].desc);
+ return;
+ }
+
+ tst_resm(TPASS | TTERRNO, "umount2(2) failed as expected");
+}
+
+static void verify_success(int i)
+{
+ if (TEST_RETURN != 0) {
+ tst_resm(TFAIL | TTERRNO, "%s failed unexpectedly",
+ test_cases[i].desc);
+ return;
+ }
+
+ tst_resm(TPASS, "umount2(2) succeeded as expected");
+ mount_flag = 0;
+}
+
+static void cleanup(void)
+{
+ if (mount_flag && tst_umount(MNTPOINT))
+ tst_resm(TWARN | TERRNO, "Failed to unmount");
+
+ if (device)
+ tst_release_device(NULL, device);
+
+ tst_rmdir();
+}
--
1.8.4.2
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