[LTP] [PATCH v4 3/3] syscalls/fanotify08: add sanity check for FAN_CLOEXEC

[Xiong Zhou]

Signed-off-by: Xiong Zhou <xzhou@redhat.com>
---
 runtest/syscalls                                |  1 +
 testcases/kernel/syscalls/fanotify/fanotify08.c | 91 +++++++++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 testcases/kernel/syscalls/fanotify/fanotify08.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 4d3218f..73d6a78 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -481,6 +481,7 @@ fanotify04 fanotify04
 fanotify05 fanotify05
 fanotify06 fanotify06
 fanotify07 fanotify07
+fanotify08 fanotify08
 
 ioperm01 ioperm01
 ioperm02 ioperm02
diff --git a/testcases/kernel/syscalls/fanotify/fanotify08.c b/testcases/kernel/syscalls/fanotify/fanotify08.c
new file mode 100644
index 0000000..dc916ec
--- /dev/null
+++ b/testcases/kernel/syscalls/fanotify/fanotify08.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2017 RedHat.  All Rights Reserved.
+ *
+ * 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.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * 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.
+ *
+ * Started by Xiong Zhou <xzhou@redhat.com>
+ *
+ * DESCRIPTION
+ *     Sanity check fanotify_init flag FAN_CLOEXEC by fcntl.
+ */
+#define _GNU_SOURCE
+#include "config.h"
+
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include "tst_test.h"
+#include "fanotify.h"
+
+#if defined(HAVE_SYS_FANOTIFY_H)
+#include <sys/fanotify.h>
+
+static int fd_notify;
+
+static void test_init_bit(unsigned int fan_bit,
+			unsigned int fd_bit, char *msg)
+{
+	int ret;
+
+	fd_notify = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF|fan_bit, O_RDONLY);
+
+	ret = SAFE_FCNTL(fd_notify, F_GETFD);
+
+	if ((ret & FD_CLOEXEC) == fd_bit) {
+		tst_res(TPASS, msg);
+	} else {
+		tst_res(TFAIL, msg);
+	}
+
+	SAFE_CLOSE(fd_notify);
+}
+
+static void run(unsigned int i)
+{
+	switch (i) {
+	case 0:
+		test_init_bit(0, 0, "not set close_on_exec");
+		break;
+	case 1:
+		test_init_bit(FAN_CLOEXEC, FD_CLOEXEC, "set close_on_exec");
+		break;
+	}
+}
+
+static void cleanup(void)
+{
+	if (fd_notify > 0)
+		SAFE_CLOSE(fd_notify);
+}
+
+static struct tst_test test = {
+	.test = run,
+	.tcnt = 2,
+	.cleanup = cleanup,
+	.needs_root = 1,
+};
+
+#else
+	TST_TEST_TCONF("system doesn't have required fanotify support");
+#endif
-- 
1.8.3.1