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
32 #include <sys/param.h>
34 #include <sys/module.h>
35 #include <sys/sysctl.h>
39 #include <semaphore.h>
43 #include <gtest/gtest.h>
48 using namespace testing;
50 /* Check that fusefs(4) is accessible and the current user can mount(2) */
51 void check_environment()
53 const char *devnode = "/dev/fuse";
54 const char *usermount_node = "vfs.usermount";
55 int usermount_val = 0;
56 size_t usermount_size = sizeof(usermount_val);
57 if (eaccess(devnode, R_OK | W_OK)) {
58 if (errno == ENOENT) {
59 GTEST_SKIP() << devnode << " does not exist";
60 } else if (errno == EACCES) {
61 GTEST_SKIP() << devnode <<
62 " is not accessible by the current user";
64 GTEST_SKIP() << strerror(errno);
67 sysctlbyname(usermount_node, &usermount_val, &usermount_size,
69 if (geteuid() != 0 && !usermount_val)
70 GTEST_SKIP() << "current user is not allowed to mount";
73 class FuseEnv: public Environment {
74 virtual void SetUp() {
78 void FuseTest::SetUp() {
79 const char *node = "vfs.maxbcachebuf";
81 size_t size = sizeof(val);
84 * XXX check_environment should be called from FuseEnv::SetUp, but
85 * can't due to https://github.com/google/googletest/issues/2189
91 ASSERT_EQ(0, sysctlbyname(node, &val, &size, NULL, 0))
96 m_mock = new MockFS(m_maxreadahead, m_allow_other,
97 m_default_permissions, m_push_symlinks_in,
99 } catch (std::system_error err) {
100 FAIL() << err.what();
105 FuseTest::expect_access(uint64_t ino, mode_t access_mode, int error)
107 EXPECT_CALL(*m_mock, process(
108 ResultOf([=](auto in) {
109 return (in->header.opcode == FUSE_ACCESS &&
110 in->header.nodeid == ino &&
111 in->body.access.mask == access_mode);
114 ).WillOnce(Invoke(ReturnErrno(error)));
118 FuseTest::expect_flush(uint64_t ino, int times, ProcessMockerT r)
120 EXPECT_CALL(*m_mock, process(
121 ResultOf([=](auto in) {
122 return (in->header.opcode == FUSE_FLUSH &&
123 in->header.nodeid == ino);
127 .WillRepeatedly(Invoke(r));
130 void FuseTest::expect_getattr(uint64_t ino, uint64_t size)
132 /* Until the attr cache is working, we may send an additional GETATTR */
133 EXPECT_CALL(*m_mock, process(
134 ResultOf([=](auto in) {
135 return (in->header.opcode == FUSE_GETATTR &&
136 in->header.nodeid == ino);
139 ).WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto out) {
140 SET_OUT_HEADER_LEN(out, attr);
141 out->body.attr.attr.ino = ino; // Must match nodeid
142 out->body.attr.attr.mode = S_IFREG | 0644;
143 out->body.attr.attr.size = size;
144 out->body.attr.attr_valid = UINT64_MAX;
148 void FuseTest::expect_lookup(const char *relpath, uint64_t ino, mode_t mode,
149 uint64_t size, int times)
151 EXPECT_LOOKUP(1, relpath)
153 .WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
154 SET_OUT_HEADER_LEN(out, entry);
155 out->body.entry.attr.mode = mode;
156 out->body.entry.nodeid = ino;
157 out->body.entry.attr.nlink = 1;
158 out->body.entry.attr_valid = UINT64_MAX;
159 out->body.entry.attr.size = size;
163 void FuseTest::expect_open(uint64_t ino, uint32_t flags, int times)
165 EXPECT_CALL(*m_mock, process(
166 ResultOf([=](auto in) {
167 return (in->header.opcode == FUSE_OPEN &&
168 in->header.nodeid == ino);
172 .WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
173 out->header.len = sizeof(out->header);
174 SET_OUT_HEADER_LEN(out, open);
175 out->body.open.fh = FH;
176 out->body.open.open_flags = flags;
180 void FuseTest::expect_opendir(uint64_t ino)
182 /* opendir(3) calls fstatfs */
183 EXPECT_CALL(*m_mock, process(
184 ResultOf([](auto in) {
185 return (in->header.opcode == FUSE_STATFS);
188 ).WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto out) {
189 SET_OUT_HEADER_LEN(out, statfs);
192 EXPECT_CALL(*m_mock, process(
193 ResultOf([=](auto in) {
194 return (in->header.opcode == FUSE_OPENDIR &&
195 in->header.nodeid == ino);
198 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
199 out->header.len = sizeof(out->header);
200 SET_OUT_HEADER_LEN(out, open);
201 out->body.open.fh = FH;
205 void FuseTest::expect_read(uint64_t ino, uint64_t offset, uint64_t isize,
206 uint64_t osize, const void *contents)
208 EXPECT_CALL(*m_mock, process(
209 ResultOf([=](auto in) {
210 return (in->header.opcode == FUSE_READ &&
211 in->header.nodeid == ino &&
212 in->body.read.fh == FH &&
213 in->body.read.offset == offset &&
214 in->body.read.size == isize);
217 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
218 out->header.len = sizeof(struct fuse_out_header) + osize;
219 memmove(out->body.bytes, contents, osize);
220 }))).RetiresOnSaturation();
223 void FuseTest::expect_release(uint64_t ino, uint64_t fh)
225 EXPECT_CALL(*m_mock, process(
226 ResultOf([=](auto in) {
227 return (in->header.opcode == FUSE_RELEASE &&
228 in->header.nodeid == ino &&
229 in->body.release.fh == fh);
232 ).WillOnce(Invoke(ReturnErrno(0)));
235 void FuseTest::expect_write(uint64_t ino, uint64_t offset, uint64_t isize,
236 uint64_t osize, uint32_t flags, const void *contents)
238 EXPECT_CALL(*m_mock, process(
239 ResultOf([=](auto in) {
240 const char *buf = (const char*)in->body.bytes +
241 sizeof(struct fuse_write_in);
244 if (in->body.write.write_flags & FUSE_WRITE_CACHE)
247 pid_ok = (pid_t)in->header.pid == getpid();
249 return (in->header.opcode == FUSE_WRITE &&
250 in->header.nodeid == ino &&
251 in->body.write.fh == FH &&
252 in->body.write.offset == offset &&
253 in->body.write.size == isize &&
255 in->body.write.write_flags == flags &&
256 0 == bcmp(buf, contents, isize));
259 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto out) {
260 SET_OUT_HEADER_LEN(out, write);
261 out->body.write.size = osize;
266 get_unprivileged_uid(uid_t *uid)
271 * First try "tests", Kyua's default unprivileged user. XXX after
272 * GoogleTest gains a proper Kyua wrapper, get this with the Kyua API
274 pw = getpwnam("tests");
276 /* Fall back to "nobody" */
277 pw = getpwnam("nobody");
280 GTEST_SKIP() << "Test requires an unprivileged user";
285 FuseTest::fork(bool drop_privs, std::function<void()> parent_func,
286 std::function<int()> child_func)
289 int mprot = PROT_READ | PROT_WRITE;
290 int mflags = MAP_ANON | MAP_SHARED;
295 get_unprivileged_uid(&uid);
300 sem = (sem_t*)mmap(NULL, sizeof(*sem), mprot, mflags, -1, 0);
301 ASSERT_NE(MAP_FAILED, sem) << strerror(errno);
302 ASSERT_EQ(0, sem_init(sem, 1, 0)) << strerror(errno);
304 if ((child = ::fork()) == 0) {
314 if (drop_privs && 0 != setreuid(-1, uid)) {
324 } else if (child > 0) {
328 * In parent. Cleanup must happen here, because it's still
331 m_mock->m_child_pid = child;
332 ASSERT_NO_FATAL_FAILURE(parent_func());
334 /* Signal the child process to go */
335 ASSERT_EQ(0, sem_post(sem)) << strerror(errno);
337 ASSERT_LE(0, wait(&child_status)) << strerror(errno);
338 ASSERT_EQ(0, WEXITSTATUS(child_status));
340 FAIL() << strerror(errno);
342 munmap(sem, sizeof(*sem));
345 static void usage(char* progname) {
346 fprintf(stderr, "Usage: %s [-v]\n\t-v increase verbosity\n", progname);
350 int main(int argc, char **argv) {
352 FuseEnv *fuse_env = new FuseEnv;
354 InitGoogleTest(&argc, argv);
355 AddGlobalTestEnvironment(fuse_env);
357 while ((ch = getopt(argc, argv, "v")) != -1) {
368 return (RUN_ALL_TESTS());