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 * $FreeBSD$
31 */
32
33 extern "C" {
34 #include <dirent.h>
35 #include <fcntl.h>
36 }
37
38 #include "mockfs.hh"
39 #include "utils.hh"
40
41 using namespace testing;
42
43 class ReleaseDir: public FuseTest {
44
45 public:
expect_lookup(const char * relpath,uint64_t ino)46 void expect_lookup(const char *relpath, uint64_t ino)
47 {
48 FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1);
49 }
50 };
51
52 /* If a file descriptor is duplicated, only the last close causes RELEASE */
TEST_F(ReleaseDir,dup)53 TEST_F(ReleaseDir, dup)
54 {
55 const char FULLPATH[] = "mountpoint/some_file.txt";
56 const char RELPATH[] = "some_file.txt";
57 uint64_t ino = 42;
58 DIR *dir, *dir2;
59
60 expect_lookup(RELPATH, ino);
61 expect_opendir(ino);
62 EXPECT_CALL(*m_mock, process(
63 ResultOf([=](auto in) {
64 return (in.header.opcode == FUSE_READDIR &&
65 in.header.nodeid == ino &&
66 in.body.readdir.offset == 0);
67 }, Eq(true)),
68 _)
69 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
70 out.header.error = 0;
71 out.header.len = sizeof(out.header);
72 })));
73 expect_releasedir(ino, ReturnErrno(0));
74
75 dir = opendir(FULLPATH);
76 ASSERT_NE(nullptr, dir) << strerror(errno);
77
78 dir2 = fdopendir(dup(dirfd(dir)));
79 ASSERT_NE(nullptr, dir2) << strerror(errno);
80
81 ASSERT_EQ(0, closedir(dir)) << strerror(errno);
82 ASSERT_EQ(0, closedir(dir2)) << strerror(errno);
83 }
84
TEST_F(ReleaseDir,ok)85 TEST_F(ReleaseDir, ok)
86 {
87 const char FULLPATH[] = "mountpoint/some_dir";
88 const char RELPATH[] = "some_dir";
89 uint64_t ino = 42;
90 DIR *dir;
91
92 expect_lookup(RELPATH, ino);
93 expect_opendir(ino);
94 expect_releasedir(ino, ReturnErrno(0));
95
96 dir = opendir(FULLPATH);
97 ASSERT_NE(nullptr, dir) << strerror(errno);
98
99 ASSERT_EQ(0, closedir(dir)) << strerror(errno);
100 }
101
102 /* Directories opened O_EXEC should be properly released, too */
TEST_F(ReleaseDir,o_exec)103 TEST_F(ReleaseDir, o_exec)
104 {
105 const char FULLPATH[] = "mountpoint/some_dir";
106 const char RELPATH[] = "some_dir";
107 uint64_t ino = 42;
108 int fd;
109
110 expect_lookup(RELPATH, ino);
111 expect_opendir(ino);
112 expect_releasedir(ino, ReturnErrno(0));
113
114 fd = open(FULLPATH, O_EXEC | O_DIRECTORY);
115 EXPECT_LE(0, fd) << strerror(errno);
116
117 ASSERT_EQ(0, close(fd)) << strerror(errno);
118 }
119