2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 The FreeBSD Foundation
6 * This software was developed by BFF Storage Systems, LLC under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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.
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
33 #include <sys/socket.h>
40 using namespace testing;
43 #define VNOVAL (-1) /* Defined in sys/vnode.h */
46 const char FULLPATH[] = "mountpoint/some_file.txt";
47 const char RELPATH[] = "some_file.txt";
49 class Mknod: public FuseTest {
52 const static mode_t c_umask = 022;
56 virtual void SetUp() {
57 m_oldmask = umask(c_umask);
59 GTEST_SKIP() << "Only root may use most mknod(2) variations";
64 virtual void TearDown() {
66 (void)umask(m_oldmask);
69 /* Test an OK creation of a file with the given mode and device number */
70 void expect_mknod(mode_t mode, dev_t dev) {
73 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
74 .WillOnce(Invoke(ReturnErrno(ENOENT)));
76 EXPECT_CALL(*m_mock, process(
77 ResultOf([=](auto in) {
78 const char *name = (const char*)in.body.bytes +
79 sizeof(fuse_mknod_in);
80 return (in.header.opcode == FUSE_MKNOD &&
81 in.body.mknod.mode == mode &&
82 in.body.mknod.rdev == (uint32_t)dev &&
83 in.body.mknod.umask == c_umask &&
84 (0 == strcmp(RELPATH, name)));
87 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
88 SET_OUT_HEADER_LEN(out, entry);
89 out.body.entry.attr.mode = mode;
90 out.body.entry.nodeid = ino;
91 out.body.entry.entry_valid = UINT64_MAX;
92 out.body.entry.attr_valid = UINT64_MAX;
93 out.body.entry.attr.rdev = dev;
99 class Mknod_7_11: public FuseTest {
101 virtual void SetUp() {
102 m_kernel_minor_version = 11;
103 if (geteuid() != 0) {
104 GTEST_SKIP() << "Only root may use most mknod(2) variations";
109 void expect_lookup(const char *relpath, uint64_t ino, uint64_t size)
111 FuseTest::expect_lookup_7_8(relpath, ino, S_IFREG | 0644, size, 1);
114 /* Test an OK creation of a file with the given mode and device number */
115 void expect_mknod(mode_t mode, dev_t dev) {
118 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
119 .WillOnce(Invoke(ReturnErrno(ENOENT)));
121 EXPECT_CALL(*m_mock, process(
122 ResultOf([=](auto in) {
123 const char *name = (const char*)in.body.bytes +
124 FUSE_COMPAT_MKNOD_IN_SIZE;
125 return (in.header.opcode == FUSE_MKNOD &&
126 in.body.mknod.mode == mode &&
127 in.body.mknod.rdev == (uint32_t)dev &&
128 (0 == strcmp(RELPATH, name)));
131 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
132 SET_OUT_HEADER_LEN(out, entry);
133 out.body.entry.attr.mode = mode;
134 out.body.entry.nodeid = ino;
135 out.body.entry.entry_valid = UINT64_MAX;
136 out.body.entry.attr_valid = UINT64_MAX;
137 out.body.entry.attr.rdev = dev;
144 * mknod(2) should be able to create block devices on a FUSE filesystem. Even
145 * though FreeBSD doesn't use block devices, this is useful when copying media
146 * from or preparing media for other operating systems.
150 mode_t mode = S_IFBLK | 0755;
151 dev_t rdev = 0xfe00; /* /dev/vda's device number on Linux */
152 expect_mknod(mode, rdev);
153 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
158 mode_t mode = S_IFCHR | 0755;
159 dev_t rdev = 54; /* /dev/fuse's device number */
160 expect_mknod(mode, rdev);
161 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
165 * The daemon is responsible for checking file permissions (unless the
166 * default_permissions mount option was used)
170 mode_t mode = S_IFIFO | 0755;
172 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
173 .WillOnce(Invoke(ReturnErrno(ENOENT)));
175 EXPECT_CALL(*m_mock, process(
176 ResultOf([=](auto in) {
177 const char *name = (const char*)in.body.bytes +
178 sizeof(fuse_mknod_in);
179 return (in.header.opcode == FUSE_MKNOD &&
180 in.body.mknod.mode == mode &&
181 (0 == strcmp(RELPATH, name)));
184 ).WillOnce(Invoke(ReturnErrno(EPERM)));
185 EXPECT_NE(0, mkfifo(FULLPATH, mode));
186 EXPECT_EQ(EPERM, errno);
191 mode_t mode = S_IFIFO | 0755;
192 dev_t rdev = VNOVAL; /* Fifos don't have device numbers */
193 expect_mknod(mode, rdev);
194 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);
198 * Create a unix-domain socket.
200 * This test case doesn't actually need root privileges.
202 TEST_F(Mknod, socket)
204 mode_t mode = S_IFSOCK | 0755;
205 struct sockaddr_un sa;
207 dev_t rdev = -1; /* Really it's a don't care */
209 expect_mknod(mode, rdev);
211 fd = socket(AF_UNIX, SOCK_STREAM, 0);
212 ASSERT_LE(0, fd) << strerror(errno);
213 sa.sun_family = AF_UNIX;
214 strlcpy(sa.sun_path, FULLPATH, sizeof(sa.sun_path));
215 ASSERT_EQ(0, bind(fd, (struct sockaddr*)&sa, sizeof(sa)))
220 * fusefs(5) lacks VOP_WHITEOUT support. No bugzilla entry, because that's a
223 TEST_F(Mknod, DISABLED_whiteout)
225 mode_t mode = S_IFWHT | 0755;
226 dev_t rdev = VNOVAL; /* whiteouts don't have device numbers */
227 expect_mknod(mode, rdev);
228 EXPECT_EQ(0, mknod(FULLPATH, mode, 0)) << strerror(errno);
231 /* A server built at protocol version 7.11 or earlier can still use mknod */
232 TEST_F(Mknod_7_11, fifo)
234 mode_t mode = S_IFIFO | 0755;
236 expect_mknod(mode, rdev);
237 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);