[LTP] [PATCH v2 5/6] kernel/syscalls: add new test with 'open() + O_TMPFILE'
Alexey Kodanev
alexey.kodanev@oracle.com
Thu Jan 28 13:28:51 CET 2016
Test does the following steps:
* create an unnamed temporary file in TMP directory,
* write data into it,
* check that file not visible in the filesystem,
* name the file and check that it becomes visible in FS.
'openat() + O_TMPFILE' test repeats the same steps.
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
---
runtest/syscalls | 2 +
testcases/kernel/syscalls/.gitignore | 2 +
testcases/kernel/syscalls/open/open14.c | 120 +++++++++++++++++++++++++++
testcases/kernel/syscalls/openat/openat03.c | 120 +++++++++++++++++++++++++++
4 files changed, 244 insertions(+), 0 deletions(-)
create mode 100644 testcases/kernel/syscalls/open/open14.c
create mode 100644 testcases/kernel/syscalls/openat/openat03.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 7173f22..3439948 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -721,10 +721,12 @@ open10 open10
open11 open11
open12 open12
open13 open13
+open14 open14
#openat test cases
openat01 openat01
openat02 openat02
+openat03 openat03
mincore01 mincore01
mincore02 mincore02
diff --git a/testcases/kernel/syscalls/.gitignore b/testcases/kernel/syscalls/.gitignore
index d5f21ef..6451dc4 100644
--- a/testcases/kernel/syscalls/.gitignore
+++ b/testcases/kernel/syscalls/.gitignore
@@ -624,9 +624,11 @@
/open/open12
/open/open12_child
/open/open13
+/open/open14
/openat/openat01
/openat/openat02
/openat/openat02_child
+/openat/openat03
/pathconf/pathconf01
/pause/pause01
/pause/pause02
diff --git a/testcases/kernel/syscalls/open/open14.c b/testcases/kernel/syscalls/open/open14.c
new file mode 100644
index 0000000..3784cb3
--- /dev/null
+++ b/testcases/kernel/syscalls/open/open14.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2015-2016 Oracle and/or its affiliates. All Rights Reserved.
+ *
+ * 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 would 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Alexey Kodanev <alexey.kodanev@oracle.com>
+ *
+ */
+
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "test.h"
+#include "safe_macros.h"
+#include "lapi/fcntl.h"
+
+char *TCID = "open14";
+int TST_TOTAL = 1;
+static const char *test_dir = ".";
+static const ssize_t size = 1024;
+static char buf[1024];
+static const ssize_t blocks_num = 4;
+static struct stat st;
+
+static void cleanup(void)
+{
+ tst_rmdir();
+}
+
+static void setup(void)
+{
+ tst_tmpdir();
+
+ memset(buf, 1, size);
+}
+
+void test01(void)
+{
+ int fd, i;
+
+ char path[PATH_MAX], tmp[PATH_MAX];
+
+ tst_resm(TINFO, "creating a file with O_TMPFILE flag");
+
+ fd = open(test_dir, O_TMPFILE | O_WRONLY | O_SYNC);
+ if (fd == -1) {
+ if (errno == EISDIR) {
+ tst_brkm(TCONF, cleanup,
+ "O_TMPFILE not supported");
+ }
+ tst_resm(TFAIL | TERRNO, "open() failed");
+ return;
+ }
+
+ tst_resm(TINFO, "writing data to the file");
+ for (i = 0; i < blocks_num; ++i)
+ SAFE_WRITE(cleanup, 1, fd, buf, size);
+
+ SAFE_FSTAT(cleanup, fd, &st);
+ tst_resm(TINFO, "file size is '%zu'", st.st_size);
+
+ if (st.st_size != blocks_num * size) {
+ tst_resm(TFAIL, "not expected size: '%zu' != '%zu'",
+ st.st_size, blocks_num * size);
+ SAFE_CLOSE(cleanup, fd);
+ return;
+ }
+
+ tst_resm(TINFO, "looking for the file in '%s'", test_dir);
+ if (!tst_dir_is_empty(cleanup, test_dir, 1))
+ tst_brkm(TBROK, cleanup, "found a file, this is not expected");
+ tst_resm(TINFO, "file not found, OK");
+
+ snprintf(path, PATH_MAX, "/proc/self/fd/%d", fd);
+ SAFE_READLINK(cleanup, path, tmp, PATH_MAX);
+
+ tst_resm(TINFO, "renaming '%s' -> '%s/tmpfile'",
+ tmp, test_dir);
+ SAFE_LINKAT(cleanup, AT_FDCWD, path, AT_FDCWD, "tmpfile",
+ AT_SYMLINK_FOLLOW);
+
+ if (tst_dir_is_empty(cleanup, test_dir, 1))
+ tst_brkm(TBROK, cleanup, "file not found");
+
+ SAFE_UNLINK(cleanup, "tmpfile");
+ SAFE_CLOSE(cleanup, fd);
+
+ tst_resm(TPASS, "test succeeded");
+}
+
+int main(int ac, char *av[])
+{
+ int lc;
+
+ tst_parse_opts(ac, av, NULL, NULL);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); ++lc) {
+ tst_count = 0;
+ test01();
+ }
+
+ cleanup();
+ tst_exit();
+}
diff --git a/testcases/kernel/syscalls/openat/openat03.c b/testcases/kernel/syscalls/openat/openat03.c
new file mode 100644
index 0000000..3a0c2f1
--- /dev/null
+++ b/testcases/kernel/syscalls/openat/openat03.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2015-2016 Oracle and/or its affiliates. All Rights Reserved.
+ *
+ * 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 would 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Alexey Kodanev <alexey.kodanev@oracle.com>
+ *
+ */
+
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "test.h"
+#include "safe_macros.h"
+#include "lapi/fcntl.h"
+
+char *TCID = "openat03";
+int TST_TOTAL = 1;
+static const char *test_dir = ".";
+static const ssize_t size = 1024;
+static char buf[1024];
+static const ssize_t blocks_num = 4;
+static struct stat st;
+
+static void cleanup(void)
+{
+ tst_rmdir();
+}
+
+static void setup(void)
+{
+ tst_tmpdir();
+
+ memset(buf, 1, size);
+}
+
+void test01(void)
+{
+ int fd, i;
+
+ char path[PATH_MAX], tmp[PATH_MAX];
+
+ tst_resm(TINFO, "creating a file with O_TMPFILE flag");
+
+ fd = openat(AT_FDCWD, test_dir, O_TMPFILE | O_WRONLY | O_SYNC);
+ if (fd == -1) {
+ if (errno == EISDIR) {
+ tst_brkm(TCONF, cleanup,
+ "O_TMPFILE not supported");
+ }
+ tst_resm(TFAIL | TERRNO, "openat() failed");
+ return;
+ }
+
+ tst_resm(TINFO, "writing data to the file");
+ for (i = 0; i < blocks_num; ++i)
+ SAFE_WRITE(cleanup, 1, fd, buf, size);
+
+ SAFE_FSTAT(cleanup, fd, &st);
+ tst_resm(TINFO, "file size is '%zu'", st.st_size);
+
+ if (st.st_size != blocks_num * size) {
+ tst_resm(TFAIL, "not expected size: '%zu' != '%zu'",
+ st.st_size, blocks_num * size);
+ SAFE_CLOSE(cleanup, fd);
+ return;
+ }
+
+ tst_resm(TINFO, "looking for the file in '%s'", test_dir);
+ if (!tst_dir_is_empty(cleanup, test_dir, 1))
+ tst_brkm(TBROK, cleanup, "found a file, this is not expected");
+ tst_resm(TINFO, "file not found, OK");
+
+ snprintf(path, PATH_MAX, "/proc/self/fd/%d", fd);
+ SAFE_READLINK(cleanup, path, tmp, PATH_MAX);
+
+ tst_resm(TINFO, "renaming '%s' -> '%s/tmpfile'",
+ tmp, test_dir);
+ SAFE_LINKAT(cleanup, AT_FDCWD, path, AT_FDCWD, "tmpfile",
+ AT_SYMLINK_FOLLOW);
+
+ if (tst_dir_is_empty(cleanup, test_dir, 1))
+ tst_brkm(TBROK, cleanup, "file not found");
+
+ SAFE_UNLINK(cleanup, "tmpfile");
+ SAFE_CLOSE(cleanup, fd);
+
+ tst_resm(TPASS, "test succeeded");
+}
+
+int main(int ac, char *av[])
+{
+ int lc;
+
+ tst_parse_opts(ac, av, NULL, NULL);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); ++lc) {
+ tst_count = 0;
+ test01();
+ }
+
+ cleanup();
+ tst_exit();
+}
--
1.7.1
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