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 /*
32 * Tests for the "default_permissions" mount option that require a privileged
33 * user.
34 */
35
36 extern "C" {
37 #include <sys/types.h>
38 #include <sys/extattr.h>
39
40 #include <fcntl.h>
41 #include <unistd.h>
42 }
43
44 #include "mockfs.hh"
45 #include "utils.hh"
46
47 using namespace testing;
48
49 class DefaultPermissionsPrivileged: public FuseTest {
SetUp()50 virtual void SetUp() {
51 m_default_permissions = true;
52 FuseTest::SetUp();
53 if (HasFatalFailure() || IsSkipped())
54 return;
55
56 if (geteuid() != 0) {
57 GTEST_SKIP() << "This test requires a privileged user";
58 }
59
60 /* With -o default_permissions, FUSE_ACCESS should never be called */
61 EXPECT_CALL(*m_mock, process(
62 ResultOf([=](auto in) {
63 return (in.header.opcode == FUSE_ACCESS);
64 }, Eq(true)),
65 _)
66 ).Times(0);
67 }
68
69 public:
expect_getattr(uint64_t ino,mode_t mode,uint64_t attr_valid,int times,uid_t uid=0,gid_t gid=0)70 void expect_getattr(uint64_t ino, mode_t mode, uint64_t attr_valid, int times,
71 uid_t uid = 0, gid_t gid = 0)
72 {
73 EXPECT_CALL(*m_mock, process(
74 ResultOf([=](auto in) {
75 return (in.header.opcode == FUSE_GETATTR &&
76 in.header.nodeid == ino);
77 }, Eq(true)),
78 _)
79 ).Times(times)
80 .WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto& out) {
81 SET_OUT_HEADER_LEN(out, attr);
82 out.body.attr.attr.ino = ino; // Must match nodeid
83 out.body.attr.attr.mode = mode;
84 out.body.attr.attr.size = 0;
85 out.body.attr.attr.uid = uid;
86 out.body.attr.attr.gid = gid;
87 out.body.attr.attr_valid = attr_valid;
88 })));
89 }
90
expect_lookup(const char * relpath,uint64_t ino,mode_t mode,uint64_t attr_valid,uid_t uid=0,gid_t gid=0)91 void expect_lookup(const char *relpath, uint64_t ino, mode_t mode,
92 uint64_t attr_valid, uid_t uid = 0, gid_t gid = 0)
93 {
94 FuseTest::expect_lookup(relpath, ino, mode, 0, 1, attr_valid, uid, gid);
95 }
96
97 };
98
99 class Setattr: public DefaultPermissionsPrivileged {};
100
TEST_F(Setattr,sticky_regular_file)101 TEST_F(Setattr, sticky_regular_file)
102 {
103 const char FULLPATH[] = "mountpoint/some_file.txt";
104 const char RELPATH[] = "some_file.txt";
105 const uint64_t ino = 42;
106 const mode_t oldmode = 0644;
107 const mode_t newmode = 01644;
108
109 expect_getattr(1, S_IFDIR | 0755, UINT64_MAX, 1);
110 expect_lookup(RELPATH, ino, S_IFREG | oldmode, UINT64_MAX, geteuid());
111 EXPECT_CALL(*m_mock, process(
112 ResultOf([](auto in) {
113 return (in.header.opcode == FUSE_SETATTR);
114 }, Eq(true)),
115 _)
116 ).WillOnce(Invoke(ReturnImmediate([](auto in __unused, auto& out) {
117 SET_OUT_HEADER_LEN(out, attr);
118 out.body.attr.attr.mode = S_IFREG | newmode;
119 })));
120
121 EXPECT_EQ(0, chmod(FULLPATH, newmode)) << strerror(errno);
122 }
123
124
125