1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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:
expect_lookup(const char * relpath,uint64_t ino)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 */
TEST_F(ReleaseDir,dup)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
TEST_F(ReleaseDir,ok)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 */
TEST_F(ReleaseDir,o_exec)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 ASSERT_LE(0, fd) << strerror(errno);
114
115 ASSERT_EQ(0, close(fd)) << strerror(errno);
116 }
117