1 files changed, 76 insertions, 0 deletions
diff --git a/src/kernel/tests/testcases/kernel/syscalls/ioctl/ioctl_xloop03.c b/src/kernel/tests/testcases/kernel/syscalls/ioctl/ioctl_xloop03.c
new file mode 100644
index 0000000..9447cbc
--- /dev/null
+++ b/src/kernel/tests/testcases/kernel/syscalls/ioctl/ioctl_xloop03.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2020 FUJITSU LIMITED. All rights reserved.
+ * Author: Yang Xu <xuyang2018.jy@cn.jujitsu.com>
+ *
+ * This is a basic ioctl test about xloopdevice.
+ *
+ * It is designed to test XLOOP_CHANGE_FD can not succeed (get EINVAL error)
+ * when xloop_dev is not read only.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include "lapi/xloop.h"
+#include "tst_test.h"
+
+static char dev_path[1024];
+static int dev_num, dev_fd, file_fd, attach_flag;
+
+static void verify_ioctl_xloop(void)
+{
+	TEST(ioctl(dev_fd, XLOOP_CHANGE_FD, file_fd));
+	if (TST_RET == 0) {
+		tst_res(TFAIL, "XLOOP_CHANGE_FD succeeded unexpectedly");
+		return;
+	}
+	if (TST_ERR == EINVAL)
+		tst_res(TPASS | TTERRNO, "XLOOP_CHANGE_FD failed as expected");
+	else
+		tst_res(TFAIL | TTERRNO, "XLOOP_CHANGE_FD failed expected EINVAL got");
+}
+
+static void setup(void)
+{
+	struct xloop_info xloopinfoget;
+
+	memset(&xloopinfoget, 0, sizeof(xloopinfoget));
+	dev_num = tst_find_free_xloopdev(dev_path, sizeof(dev_path));
+	if (dev_num < 0)
+		tst_brk(TBROK, "Failed to find free xloop device");
+
+	tst_fill_file("test.img", 0, 1024, 10);
+	tst_attach_device(dev_path, "test.img");
+	attach_flag = 1;
+
+	dev_fd = SAFE_OPEN(dev_path, O_RDWR);
+	file_fd = SAFE_OPEN("test.img", O_RDWR);
+	SAFE_IOCTL(dev_fd, XLOOP_GET_STATUS, &xloopinfoget);
+
+	if (xloopinfoget.xlo_flags & XLO_FLAGS_READ_ONLY)
+		tst_brk(TCONF, "Current environment has unexpected XLO_FLAGS_READ_ONLY flag");
+}
+
+static void cleanup(void)
+{
+	if (dev_fd > 0)
+		SAFE_CLOSE(dev_fd);
+	if (file_fd > 0)
+		SAFE_CLOSE(file_fd);
+	if (attach_flag)
+		tst_detach_device(dev_path);
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.cleanup = cleanup,
+	.test_all = verify_ioctl_xloop,
+	.needs_root = 1,
+	.needs_tmpdir = 1,
+	.needs_drivers = (const char *const []) {
+		"xloop",
+		"xloop_file_fmt_raw",
+		NULL
+	}
+};