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
35 #include <sys/socket.h>
42 using namespace testing;
45 #define VNOVAL (-1) /* Defined in sys/vnode.h */
48 const char FULLPATH[] = "mountpoint/some_file.txt";
49 const char RELPATH[] = "some_file.txt";
51 class Mknod: public FuseTest {
54 const static mode_t c_umask = 022;
59 m_oldmask = umask(c_umask);
62 virtual void SetUp() {
64 GTEST_SKIP() << "Only root may use most mknod(2) variations";
69 virtual void TearDown() {
71 (void)umask(m_oldmask);
74 /* Test an OK creation of a file with the given mode and device number */
75 void expect_mknod(mode_t mode, dev_t dev) {
78 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
79 .WillOnce(Invoke(ReturnErrno(ENOENT)));
81 EXPECT_CALL(*m_mock, process(
82 ResultOf([=](auto in) {
83 const char *name = (const char*)in.body.bytes +
84 sizeof(fuse_mknod_in);
85 return (in.header.opcode == FUSE_MKNOD &&
86 in.body.mknod.mode == mode &&
87 in.body.mknod.rdev == (uint32_t)dev &&
88 in.body.mknod.umask == c_umask &&
89 (0 == strcmp(RELPATH, name)));
92 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
93 SET_OUT_HEADER_LEN(out, entry);
94 out.body.entry.attr.mode = mode;
95 out.body.entry.nodeid = ino;
96 out.body.entry.entry_valid = UINT64_MAX;
97 out.body.entry.attr_valid = UINT64_MAX;
98 out.body.entry.attr.rdev = dev;
104 class Mknod_7_11: public FuseTest {
106 virtual void SetUp() {
107 m_kernel_minor_version = 11;
108 if (geteuid() != 0) {
109 GTEST_SKIP() << "Only root may use most mknod(2) variations";
114 void expect_lookup(const char *relpath, uint64_t ino, uint64_t size)
116 FuseTest::expect_lookup_7_8(relpath, ino, S_IFREG | 0644, size, 1);
119 /* Test an OK creation of a file with the given mode and device number */
120 void expect_mknod(mode_t mode, dev_t dev) {
123 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
124 .WillOnce(Invoke(ReturnErrno(ENOENT)));
126 EXPECT_CALL(*m_mock, process(
127 ResultOf([=](auto in) {
128 const char *name = (const char*)in.body.bytes +
129 FUSE_COMPAT_MKNOD_IN_SIZE;
130 return (in.header.opcode == FUSE_MKNOD &&
131 in.body.mknod.mode == mode &&
132 in.body.mknod.rdev == (uint32_t)dev &&
133 (0 == strcmp(RELPATH, name)));
136 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
137 SET_OUT_HEADER_LEN(out, entry);
138 out.body.entry.attr.mode = mode;
139 out.body.entry.nodeid = ino;
140 out.body.entry.entry_valid = UINT64_MAX;
141 out.body.entry.attr_valid = UINT64_MAX;
142 out.body.entry.attr.rdev = dev;
149 * mknod(2) should be able to create block devices on a FUSE filesystem. Even
150 * though FreeBSD doesn't use block devices, this is useful when copying media
151 * from or preparing media for other operating systems.
155 mode_t mode = S_IFBLK | 0755;
156 dev_t rdev = 0xfe00; /* /dev/vda's device number on Linux */
157 expect_mknod(mode, rdev);
158 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
163 mode_t mode = S_IFCHR | 0755;
164 dev_t rdev = 54; /* /dev/fuse's device number */
165 expect_mknod(mode, rdev);
166 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
170 * The daemon is responsible for checking file permissions (unless the
171 * default_permissions mount option was used)
175 mode_t mode = S_IFIFO | 0755;
177 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
178 .WillOnce(Invoke(ReturnErrno(ENOENT)));
180 EXPECT_CALL(*m_mock, process(
181 ResultOf([=](auto in) {
182 const char *name = (const char*)in.body.bytes +
183 sizeof(fuse_mknod_in);
184 return (in.header.opcode == FUSE_MKNOD &&
185 in.body.mknod.mode == mode &&
186 (0 == strcmp(RELPATH, name)));
189 ).WillOnce(Invoke(ReturnErrno(EPERM)));
190 EXPECT_NE(0, mkfifo(FULLPATH, mode));
191 EXPECT_EQ(EPERM, errno);
196 mode_t mode = S_IFIFO | 0755;
197 dev_t rdev = VNOVAL; /* Fifos don't have device numbers */
198 expect_mknod(mode, rdev);
199 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);
203 * Create a unix-domain socket.
205 * This test case doesn't actually need root privileges.
207 TEST_F(Mknod, socket)
209 mode_t mode = S_IFSOCK | 0755;
210 struct sockaddr_un sa;
212 dev_t rdev = -1; /* Really it's a don't care */
214 expect_mknod(mode, rdev);
216 fd = socket(AF_UNIX, SOCK_STREAM, 0);
217 ASSERT_LE(0, fd) << strerror(errno);
218 sa.sun_family = AF_UNIX;
219 strlcpy(sa.sun_path, FULLPATH, sizeof(sa.sun_path));
220 sa.sun_len = sizeof(FULLPATH);
221 ASSERT_EQ(0, bind(fd, (struct sockaddr*)&sa, sizeof(sa)))
228 * fusefs(5) lacks VOP_WHITEOUT support. No bugzilla entry, because that's a
231 TEST_F(Mknod, DISABLED_whiteout)
233 mode_t mode = S_IFWHT | 0755;
234 dev_t rdev = VNOVAL; /* whiteouts don't have device numbers */
235 expect_mknod(mode, rdev);
236 EXPECT_EQ(0, mknod(FULLPATH, mode, 0)) << strerror(errno);
239 /* A server built at protocol version 7.11 or earlier can still use mknod */
240 TEST_F(Mknod_7_11, fifo)
242 mode_t mode = S_IFIFO | 0755;
244 expect_mknod(mode, rdev);
245 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);