1 files changed, 116 insertions, 0 deletions
diff --git a/tests/sys/fs/fusefs/releasedir.cc b/tests/sys/fs/fusefs/releasedir.cc
new file mode 100644
index 000000000000..0f9337a5b761
--- /dev/null
+++ b/tests/sys/fs/fusefs/releasedir.cc
@@ -0,0 +1,116 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2019 The FreeBSD Foundation
+ *
+ * This software was developed by BFF Storage Systems, LLC under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+extern "C" {
+#include <dirent.h>
+#include <fcntl.h>
+}
+
+#include "mockfs.hh"
+#include "utils.hh"
+
+using namespace testing;
+
+class ReleaseDir: public FuseTest {
+
+public:
+void expect_lookup(const char *relpath, uint64_t ino)
+{
+	FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1);
+}
+};
+
+/* If a file descriptor is duplicated, only the last close causes RELEASE */
+TEST_F(ReleaseDir, dup)
+{
+	const char FULLPATH[] = "mountpoint/some_file.txt";
+	const char RELPATH[] = "some_file.txt";
+	uint64_t ino = 42;
+	DIR *dir, *dir2;
+
+	expect_lookup(RELPATH, ino);
+	expect_opendir(ino);
+	EXPECT_CALL(*m_mock, process(
+		ResultOf([=](auto in) {
+			return (in.header.opcode == FUSE_READDIR &&
+				in.header.nodeid == ino &&
+				in.body.readdir.offset == 0);
+		}, Eq(true)),
+		_)
+	).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
+		out.header.error = 0;
+		out.header.len = sizeof(out.header);
+	})));
+	expect_releasedir(ino, ReturnErrno(0));
+	
+	dir = opendir(FULLPATH);
+	ASSERT_NE(nullptr, dir) << strerror(errno);
+
+	dir2 = fdopendir(dup(dirfd(dir)));
+	ASSERT_NE(nullptr, dir2) << strerror(errno);
+
+	ASSERT_EQ(0, closedir(dir)) << strerror(errno);
+	ASSERT_EQ(0, closedir(dir2)) << strerror(errno);
+}
+
+TEST_F(ReleaseDir, ok)
+{
+	const char FULLPATH[] = "mountpoint/some_dir";
+	const char RELPATH[] = "some_dir";
+	uint64_t ino = 42;
+	DIR *dir;
+
+	expect_lookup(RELPATH, ino);
+	expect_opendir(ino);
+	expect_releasedir(ino, ReturnErrno(0));
+	
+	dir = opendir(FULLPATH);
+	ASSERT_NE(nullptr, dir) << strerror(errno);
+
+	ASSERT_EQ(0, closedir(dir)) << strerror(errno);
+}
+
+/* Directories opened O_EXEC should be properly released, too */
+TEST_F(ReleaseDir, o_exec)
+{
+	const char FULLPATH[] = "mountpoint/some_dir";
+	const char RELPATH[] = "some_dir";
+	uint64_t ino = 42;
+	int fd;
+
+	expect_lookup(RELPATH, ino);
+	expect_opendir(ino);
+	expect_releasedir(ino, ReturnErrno(0));
+	
+	fd = open(FULLPATH, O_EXEC | O_DIRECTORY);
+	ASSERT_LE(0, fd) << strerror(errno);
+
+	ASSERT_EQ(0, close(fd)) << strerror(errno);
+}