[LTP] [PATCH] mount/mount06.c: new case to test MS_MOVE of mount

DAN LI
2013-07-03T06:56:43Z

Create new test case "mount06.c" for MS_MOVE of mount.

Checking if file is visible from the new location after move mount.

Signed-off-by: DAN LI <li.dan@cn.fujitsu.com>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/.gitignore | 1 +
testcases/kernel/syscalls/mount/mount06.c | 197 ++++++++++++++++++++++++++++++
3 files changed, 199 insertions(+)
create mode 100644 testcases/kernel/syscalls/mount/mount06.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 3ab19f5..9468d81 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -578,6 +578,7 @@ mount01 mount01 -D DEVICE -T DEVICE_FS_TYPE
mount02 mount02 -D DEVICE -T DEVICE_FS_TYPE
mount03 mount03 -D DEVICE -T DEVICE_FS_TYPE
mount04 mount04 -D DEVICE -T DEVICE_FS_TYPE
+mount06 mount06 -D DEVICE -T DEVICE_FS_TYPE

move_pages01 move_pages.sh 01
move_pages02 move_pages.sh 02
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index fede145..4ed5a9a 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -521,6 +521,7 @@
/mount/mount02
/mount/mount03
/mount/mount04
+/mount/mount06
/mount/setuid_test
/move_pages/move_pages01
/move_pages/move_pages02
diff --git a/testcases/kernel/syscalls/mount/mount06.c b/testcases/kernel/syscalls/mount/mount06.c
new file mode 100644
index 0000000..79def55
--- /dev/null
+++ b/testcases/kernel/syscalls/mount/mount06.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2013 FNST, DAN LI <li.dan@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 along
+ * with this program; if not, write the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+/**************************************************************************
+ *
+ * EXECUTED BY : root / superuser
+ *
+ * DESCRIPTION
+ * Test for feature MS_MOVE of mount.
+ * "Move a subtree"
+ *
+ * Setup:
+ * Setup signal handling.
+ * Create a mount point.
+ * Pause for SIGUSR1 if option specified.
+ *
+ * Test:
+ * Loop if the proper options are given.
+ * Execute system call
+ * Check return code, if system call failed (return=-1)
+ * Log the errno and Issue a FAIL message.
+ * Otherwise, Issue a PASS message.
+ *
+ * Cleanup:
+ * Delete the mount point.
+ *
+ * RESTRICTIONS
+ * test must run with the -D option
+ * test doesn't support -c option to run it in parallel, as mount
+ * syscall is not supposed to run in parallel.
+ *****************************************************************************/
+
+#include <errno.h>
+#include <sys/mount.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "test.h"
+#include "usctest.h"
+#include "safe_macros.h"
+
+#define MNTPOINT_SRC "mnt_src"
+#define MNTPOINT_DES "mnt_des"
+#define TMP_FILE "tstfile"
+#define DIR_MODE (S_IRWXU | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP)
+
+static void help(void);
+static void setup(void);
+static void cleanup(void);
+
+char *TCID = "mount06";
+int TST_TOTAL = 1;
+
+static const char *fs_type = "ext2";
+
+static int tflag;
+static int dflag;
+static char *fstype;
+static char *device;
+static char path_name[PATH_MAX];
+static char file_src[PATH_MAX];
+static char file_des[PATH_MAX];
+static char mntpoint_src[PATH_MAX];
+static char mntpoint_des[PATH_MAX];
+
+static option_t options[] = {
+ {"T:", &tflag, &fstype},
+ {"D:", &dflag, &device},
+ {NULL, NULL, NULL},
+};
+
+int main(int argc, char *argv[])
+{
+ int lc;
+ char *msg;
+
+ msg = parse_opts(argc, argv, options, &help);
+ if (msg != NULL)
+ tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
+
+ /* Check for mandatory option of the testcase */
+ if (!dflag)
+ tst_brkm(TBROK, NULL,
+ "you must specify the device used for mounting with "
+ "the -D option");
+
+ if (tflag)
+ fs_type = fstype;
+
+ if (STD_COPIES != 1) {
+ tst_resm(TINFO, "-c option has no effect for this testcase - "
+ "%s doesn't allow running more than one instance "
+ "at a time", TCID);
+ STD_COPIES = 1;
+ }
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+
+ tst_count = 0;
+
+ if (mount(device, mntpoint_src, fs_type, 0, NULL) == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "mount %s failed",
+ mntpoint_src);
+
+ SAFE_FILE_PRINTF(cleanup, file_src, "TEST FILE");
+
+ TEST(mount(mntpoint_src, mntpoint_des, fs_type, MS_MOVE, NULL));
+
+ if (TEST_RETURN != 0) {
+ tst_resm(TFAIL | TTERRNO, "mount(2) failed");
+ } else {
+
+ if (open(file_des, O_CREAT | O_EXCL) == -1 &&
+ errno == EEXIST)
+ tst_resm(TPASS, "move mount is ok");
+ else
+ tst_resm(TFAIL, "file %s is not available",
+ file_des);
+
+ TEST(umount(mntpoint_des));
+ if (TEST_RETURN != 0)
+ tst_brkm(TBROK | TTERRNO, cleanup,
+ "umount(2) failed");
+ }
+ }
+ cleanup();
+
+ tst_exit();
+}
+
+void setup(void)
+{
+ tst_require_root(NULL);
+
+ tst_sig(NOFORK, DEF_HANDLER, cleanup);
+
+ tst_tmpdir();
+
+ if (getcwd(path_name, sizeof(path_name)) == NULL)
+ tst_brkm(TBROK, cleanup, "getcwd failed");
+
+ /*
+ * Turn current dir into a private mount point being a parent
+ * mount which is required by move mount.
+ */
+ if (mount(path_name, path_name, "none", MS_BIND, NULL) == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "bind mount failed");
+
+ if (mount("none", path_name, "none", MS_PRIVATE, NULL) == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "mount private failed");
+
+ snprintf(mntpoint_src, PATH_MAX, "%s/%s", path_name, MNTPOINT_SRC);
+ snprintf(mntpoint_des, PATH_MAX, "%s/%s", path_name, MNTPOINT_DES);
+
+ snprintf(file_src, PATH_MAX, "%s/%s/%s",
+ path_name, MNTPOINT_SRC, TMP_FILE);
+ snprintf(file_des, PATH_MAX, "%s/%s/%s",
+ path_name, MNTPOINT_DES, TMP_FILE);
+
+ SAFE_MKDIR(cleanup, mntpoint_src, DIR_MODE);
+ SAFE_MKDIR(cleanup, mntpoint_des, DIR_MODE);
+
+ TEST_PAUSE;
+}
+
+void cleanup(void)
+{
+ if (umount(path_name) != 0)
+ tst_brkm(TBROK | TTERRNO, NULL, "umount(2) %s failed",
+ path_name);
+
+ TEST_CLEANUP;
+
+ tst_rmdir();
+}
+
+void help(void)
+{
+ printf("-T type : specifies the type of filesystem to be mounted. "
+ "Default ext2.\n");
+ printf("-D device : device used for mounting.\n");
+}
--
1.8.1

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