xref: /freebsd/tests/sys/fs/fusefs/access.cc (revision 77a1348b3c1cfe8547be49a121b56299a1e18b69)
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 <fcntl.h>
35 #include <unistd.h>
36 }
37 
38 #include "mockfs.hh"
39 #include "utils.hh"
40 
41 using namespace testing;
42 
43 class Access: public FuseTest {
44 public:
45 void expect_lookup(const char *relpath, uint64_t ino)
46 {
47 	FuseTest::expect_lookup(relpath, ino, S_IFREG | 0644, 0, 1);
48 }
49 };
50 
51 class RofsAccess: public Access {
52 public:
53 virtual void SetUp() {
54 	m_ro = true;
55 	Access::SetUp();
56 }
57 };
58 
59 /* The error case of FUSE_ACCESS.  */
60 TEST_F(Access, eaccess)
61 {
62 	const char FULLPATH[] = "mountpoint/some_file.txt";
63 	const char RELPATH[] = "some_file.txt";
64 	uint64_t ino = 42;
65 	mode_t	access_mode = X_OK;
66 
67 	expect_access(FUSE_ROOT_ID, X_OK, 0);
68 	expect_lookup(RELPATH, ino);
69 	expect_access(ino, access_mode, EACCES);
70 
71 	ASSERT_NE(0, access(FULLPATH, access_mode));
72 	ASSERT_EQ(EACCES, errno);
73 }
74 
75 /*
76  * If the filesystem returns ENOSYS, then it is treated as a permanent success,
77  * and subsequent VOP_ACCESS calls will succeed automatically without querying
78  * the daemon.
79  */
80 TEST_F(Access, enosys)
81 {
82 	const char FULLPATH[] = "mountpoint/some_file.txt";
83 	const char RELPATH[] = "some_file.txt";
84 	uint64_t ino = 42;
85 	mode_t	access_mode = R_OK;
86 
87 	expect_access(FUSE_ROOT_ID, X_OK, ENOSYS);
88 	FuseTest::expect_lookup(RELPATH, ino, S_IFREG | 0644, 0, 2);
89 
90 	ASSERT_EQ(0, access(FULLPATH, access_mode)) << strerror(errno);
91 	ASSERT_EQ(0, access(FULLPATH, access_mode)) << strerror(errno);
92 }
93 
94 TEST_F(RofsAccess, erofs)
95 {
96 	const char FULLPATH[] = "mountpoint/some_file.txt";
97 	const char RELPATH[] = "some_file.txt";
98 	uint64_t ino = 42;
99 	mode_t	access_mode = W_OK;
100 
101 	expect_access(FUSE_ROOT_ID, X_OK, 0);
102 	expect_lookup(RELPATH, ino);
103 
104 	ASSERT_NE(0, access(FULLPATH, access_mode));
105 	ASSERT_EQ(EROFS, errno);
106 }
107 
108 /* The successful case of FUSE_ACCESS.  */
109 TEST_F(Access, ok)
110 {
111 	const char FULLPATH[] = "mountpoint/some_file.txt";
112 	const char RELPATH[] = "some_file.txt";
113 	uint64_t ino = 42;
114 	mode_t	access_mode = R_OK;
115 
116 	expect_access(FUSE_ROOT_ID, X_OK, 0);
117 	expect_lookup(RELPATH, ino);
118 	expect_access(ino, access_mode, 0);
119 
120 	ASSERT_EQ(0, access(FULLPATH, access_mode)) << strerror(errno);
121 }
122