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 * TODO: remove FUSE_WRITE_CACHE definition when upgrading to protocol 7.9.
33 * This bit was actually part of kernel protocol version 7.2, but never
34 * documented until 7.9
36 #ifndef FUSE_WRITE_CACHE
37 #define FUSE_WRITE_CACHE 1
40 /* Nanoseconds to sleep, for tests that must */
41 #define NAP_NS (100'000'000)
43 void get_unprivileged_id(uid_t *uid, gid_t *gid);
46 usleep(NAP_NS / 1000);
49 class FuseTest : public ::testing::Test {
51 uint32_t m_maxreadahead;
52 uint32_t m_init_flags;
54 bool m_default_permissions;
55 enum poll_method m_pm;
56 bool m_push_symlinks_in;
58 MockFS *m_mock = NULL;
59 const static uint64_t FH = 0xdeadbeef1a7ebabe;
66 * libfuse's default max_readahead is UINT_MAX, though it can
69 m_maxreadahead(UINT_MAX),
72 m_default_permissions(false),
74 m_push_symlinks_in(false),
80 virtual void TearDown() {
86 * Create an expectation that FUSE_ACCESS will be called once for the
87 * given inode with the given access_mode, returning the given errno
89 void expect_access(uint64_t ino, mode_t access_mode, int error);
91 /* Expect FUSE_DESTROY and shutdown the daemon */
92 void expect_destroy(int error);
95 * Create an expectation that FUSE_FLUSH will be called times times for
98 void expect_flush(uint64_t ino, int times, ProcessMockerT r);
101 * Create an expectation that FUSE_FORGET will be called for the given
102 * inode. There will be no response
104 void expect_forget(uint64_t ino, uint64_t nlookup);
107 * Create an expectation that FUSE_GETATTR will be called for the given
108 * inode any number of times. It will respond with a few basic
109 * attributes, like the given size and the mode S_IFREG | 0644
111 void expect_getattr(uint64_t ino, uint64_t size);
114 * Create an expectation that FUSE_LOOKUP will be called for the given
115 * path exactly times times and cache validity period. It will respond
116 * with inode ino, mode mode, filesize size.
118 void expect_lookup(const char *relpath, uint64_t ino, mode_t mode,
119 uint64_t size, int times, uint64_t attr_valid = UINT64_MAX,
120 uid_t uid = 0, gid_t gid = 0);
123 * Create an expectation that FUSE_OPEN will be called for the given
124 * inode exactly times times. It will return with open_flags flags and
127 void expect_open(uint64_t ino, uint32_t flags, int times);
130 * Create an expectation that FUSE_OPENDIR will be called exactly once
133 void expect_opendir(uint64_t ino);
136 * Create an expectation that FUSE_READ will be called exactly once for
137 * the given inode, at offset offset and with size isize. It will
138 * return the first osize bytes from contents
140 void expect_read(uint64_t ino, uint64_t offset, uint64_t isize,
141 uint64_t osize, const void *contents);
144 * Create an expectation that FUSE_RELEASE will be called exactly once
145 * for the given inode and filehandle, returning success
147 void expect_release(uint64_t ino, uint64_t fh);
150 * Create an expectation that FUSE_RELEASEDIR will be called exactly
151 * once for the given inode
153 void expect_releasedir(uint64_t ino, ProcessMockerT r);
156 * Create an expectation that FUSE_UNLINK will be called exactly once
157 * for the given path, returning an errno
159 void expect_unlink(uint64_t parent, const char *path, int error);
162 * Create an expectation that FUSE_WRITE will be called exactly once
163 * for the given inode, at offset offset, with write_flags flags,
164 * size isize and buffer contents. It will return osize
166 void expect_write(uint64_t ino, uint64_t offset, uint64_t isize,
167 uint64_t osize, uint32_t flags, const void *contents);
170 * Helper that runs code in a child process.
172 * First, parent_func runs in the parent process.
173 * Then, child_func runs in the child process, dropping privileges if
175 * Finally, fusetest_fork returns.
179 * fusetest_fork may SKIP the test, which the caller should detect with
180 * the IsSkipped() method. If not, then the child's exit status will
181 * be returned in status.
183 void fork(bool drop_privs, int *status,
184 std::function<void()> parent_func,
185 std::function<int()> child_func);