2 * SPDX-License-Identifier: BSD-2-Clause
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 class Mknod: public FuseTest {
51 const static mode_t c_umask = 022;
56 m_oldmask = umask(c_umask);
59 virtual void SetUp() {
61 GTEST_SKIP() << "Only root may use most mknod(2) variations";
66 virtual void TearDown() {
68 (void)umask(m_oldmask);
71 /* Test an OK creation of a file with the given mode and device number */
72 void expect_mknod(uint64_t parent_ino, const char* relpath, uint64_t ino,
73 mode_t mode, dev_t dev)
75 EXPECT_CALL(*m_mock, process(
76 ResultOf([=](auto in) {
77 const char *name = (const char*)in.body.bytes +
78 sizeof(fuse_mknod_in);
79 return (in.header.nodeid == parent_ino &&
80 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(uint64_t parent_ino, const char* relpath, uint64_t ino,
116 mode_t mode, dev_t dev)
118 EXPECT_CALL(*m_mock, process(
119 ResultOf([=](auto in) {
120 const char *name = (const char*)in.body.bytes +
121 FUSE_COMPAT_MKNOD_IN_SIZE;
122 return (in.header.nodeid == parent_ino &&
123 in.header.opcode == FUSE_MKNOD &&
124 in.body.mknod.mode == mode &&
125 in.body.mknod.rdev == (uint32_t)dev &&
126 (0 == strcmp(relpath, name)));
129 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) {
130 SET_OUT_HEADER_LEN(out, entry);
131 out.body.entry.attr.mode = mode;
132 out.body.entry.nodeid = ino;
133 out.body.entry.entry_valid = UINT64_MAX;
134 out.body.entry.attr_valid = UINT64_MAX;
135 out.body.entry.attr.rdev = dev;
142 * mknod(2) should be able to create block devices on a FUSE filesystem. Even
143 * though FreeBSD doesn't use block devices, this is useful when copying media
144 * from or preparing media for other operating systems.
148 const char FULLPATH[] = "mountpoint/some_node";
149 const char RELPATH[] = "some_node";
150 mode_t mode = S_IFBLK | 0755;
151 dev_t rdev = 0xfe00; /* /dev/vda's device number on Linux */
154 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
155 .WillOnce(Invoke(ReturnErrno(ENOENT)));
156 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
158 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
163 const char FULLPATH[] = "mountpoint/some_node";
164 const char RELPATH[] = "some_node";
165 mode_t mode = S_IFCHR | 0755;
166 dev_t rdev = 54; /* /dev/fuse's device number */
169 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
170 .WillOnce(Invoke(ReturnErrno(ENOENT)));
171 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
173 EXPECT_EQ(0, mknod(FULLPATH, mode, rdev)) << strerror(errno);
177 * The daemon is responsible for checking file permissions (unless the
178 * default_permissions mount option was used)
182 const char FULLPATH[] = "mountpoint/some_node";
183 const char RELPATH[] = "some_node";
184 mode_t mode = S_IFIFO | 0755;
186 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
187 .WillOnce(Invoke(ReturnErrno(ENOENT)));
189 EXPECT_CALL(*m_mock, process(
190 ResultOf([=](auto in) {
191 const char *name = (const char*)in.body.bytes +
192 sizeof(fuse_mknod_in);
193 return (in.header.opcode == FUSE_MKNOD &&
194 in.body.mknod.mode == mode &&
195 (0 == strcmp(RELPATH, name)));
198 ).WillOnce(Invoke(ReturnErrno(EPERM)));
199 EXPECT_NE(0, mkfifo(FULLPATH, mode));
200 EXPECT_EQ(EPERM, errno);
205 const char FULLPATH[] = "mountpoint/some_node";
206 const char RELPATH[] = "some_node";
207 mode_t mode = S_IFIFO | 0755;
208 dev_t rdev = VNOVAL; /* Fifos don't have device numbers */
211 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
212 .WillOnce(Invoke(ReturnErrno(ENOENT)));
213 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
215 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);
219 * Create a unix-domain socket.
221 * This test case doesn't actually need root privileges.
223 TEST_F(Mknod, socket)
225 const char FULLPATH[] = "mountpoint/some_node";
226 const char RELPATH[] = "some_node";
227 mode_t mode = S_IFSOCK | 0755;
228 struct sockaddr_un sa;
230 dev_t rdev = -1; /* Really it's a don't care */
233 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
234 .WillOnce(Invoke(ReturnErrno(ENOENT)));
235 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
237 fd = socket(AF_UNIX, SOCK_STREAM, 0);
238 ASSERT_LE(0, fd) << strerror(errno);
239 sa.sun_family = AF_UNIX;
240 strlcpy(sa.sun_path, FULLPATH, sizeof(sa.sun_path));
241 sa.sun_len = sizeof(FULLPATH);
242 ASSERT_EQ(0, bind(fd, (struct sockaddr*)&sa, sizeof(sa)))
249 * Nothing bad should happen if the server returns the parent's inode number
250 * for the newly created file. Regression test for bug 263662.
251 * https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263662
253 TEST_F(Mknod, parent_inode)
255 const char FULLPATH[] = "mountpoint/parent/some_node";
256 const char PPATH[] = "parent";
257 const char RELPATH[] = "some_node";
258 mode_t mode = S_IFSOCK | 0755;
259 struct sockaddr_un sa;
261 dev_t rdev = -1; /* Really it's a don't care */
264 expect_lookup(PPATH, ino, S_IFDIR | 0755, 0, 1);
265 EXPECT_LOOKUP(ino, RELPATH)
266 .WillOnce(Invoke(ReturnErrno(ENOENT)));
267 expect_mknod(ino, RELPATH, ino, mode, rdev);
269 fd = socket(AF_UNIX, SOCK_STREAM, 0);
270 ASSERT_LE(0, fd) << strerror(errno);
271 sa.sun_family = AF_UNIX;
272 strlcpy(sa.sun_path, FULLPATH, sizeof(sa.sun_path));
273 sa.sun_len = sizeof(FULLPATH);
274 ASSERT_EQ(-1, bind(fd, (struct sockaddr*)&sa, sizeof(sa)));
275 ASSERT_EQ(EIO, errno);
281 * fusefs(5) lacks VOP_WHITEOUT support. No bugzilla entry, because that's a
284 TEST_F(Mknod, DISABLED_whiteout)
286 const char FULLPATH[] = "mountpoint/some_node";
287 const char RELPATH[] = "some_node";
288 mode_t mode = S_IFWHT | 0755;
289 dev_t rdev = VNOVAL; /* whiteouts don't have device numbers */
292 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
293 .WillOnce(Invoke(ReturnErrno(ENOENT)));
294 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
296 EXPECT_EQ(0, mknod(FULLPATH, mode, 0)) << strerror(errno);
299 /* A server built at protocol version 7.11 or earlier can still use mknod */
300 TEST_F(Mknod_7_11, fifo)
302 const char FULLPATH[] = "mountpoint/some_node";
303 const char RELPATH[] = "some_node";
304 mode_t mode = S_IFIFO | 0755;
308 EXPECT_LOOKUP(FUSE_ROOT_ID, RELPATH)
309 .WillOnce(Invoke(ReturnErrno(ENOENT)));
310 expect_mknod(FUSE_ROOT_ID, RELPATH, ino, mode, rdev);
312 EXPECT_EQ(0, mkfifo(FULLPATH, mode)) << strerror(errno);