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fusefs: fix warnings in the tests reported by GCC
[FreeBSD/FreeBSD.git] / tests / sys / fs / fusefs / releasedir.cc
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2019 The FreeBSD Foundation
5  *
6  * This software was developed by BFF Storage Systems, LLC under sponsorship
7  * from the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30
31 extern "C" {
32 #include <dirent.h>
33 #include <fcntl.h>
34 }
35
36 #include "mockfs.hh"
37 #include "utils.hh"
38
39 using namespace testing;
40
41 class ReleaseDir: public FuseTest {
42
43 public:
44 void expect_lookup(const char *relpath, uint64_t ino)
45 {
46         FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1);
47 }
48 };
49
50 /* If a file descriptor is duplicated, only the last close causes RELEASE */
51 TEST_F(ReleaseDir, dup)
52 {
53         const char FULLPATH[] = "mountpoint/some_file.txt";
54         const char RELPATH[] = "some_file.txt";
55         uint64_t ino = 42;
56         DIR *dir, *dir2;
57
58         expect_lookup(RELPATH, ino);
59         expect_opendir(ino);
60         EXPECT_CALL(*m_mock, process(
61                 ResultOf([=](auto in) {
62                         return (in.header.opcode == FUSE_READDIR &&
63                                 in.header.nodeid == ino &&
64                                 in.body.readdir.offset == 0);
65                 }, Eq(true)),
66                 _)
67         ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
68                 out.header.error = 0;
69                 out.header.len = sizeof(out.header);
70         })));
71         expect_releasedir(ino, ReturnErrno(0));
72         
73         dir = opendir(FULLPATH);
74         ASSERT_NE(nullptr, dir) << strerror(errno);
75
76         dir2 = fdopendir(dup(dirfd(dir)));
77         ASSERT_NE(nullptr, dir2) << strerror(errno);
78
79         ASSERT_EQ(0, closedir(dir)) << strerror(errno);
80         ASSERT_EQ(0, closedir(dir2)) << strerror(errno);
81 }
82
83 TEST_F(ReleaseDir, ok)
84 {
85         const char FULLPATH[] = "mountpoint/some_dir";
86         const char RELPATH[] = "some_dir";
87         uint64_t ino = 42;
88         DIR *dir;
89
90         expect_lookup(RELPATH, ino);
91         expect_opendir(ino);
92         expect_releasedir(ino, ReturnErrno(0));
93         
94         dir = opendir(FULLPATH);
95         ASSERT_NE(nullptr, dir) << strerror(errno);
96
97         ASSERT_EQ(0, closedir(dir)) << strerror(errno);
98 }
99
100 /* Directories opened O_EXEC should be properly released, too */
101 TEST_F(ReleaseDir, o_exec)
102 {
103         const char FULLPATH[] = "mountpoint/some_dir";
104         const char RELPATH[] = "some_dir";
105         uint64_t ino = 42;
106         int fd;
107
108         expect_lookup(RELPATH, ino);
109         expect_opendir(ino);
110         expect_releasedir(ino, ReturnErrno(0));
111         
112         fd = open(FULLPATH, O_EXEC | O_DIRECTORY);
113         EXPECT_LE(0, fd) << strerror(errno);
114
115         ASSERT_EQ(0, close(fd)) << strerror(errno);
116 }