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 void get_unprivileged_id(uid_t *uid, gid_t *gid);
42 class FuseTest : public ::testing::Test {
44 uint32_t m_maxreadahead;
45 uint32_t m_init_flags;
47 bool m_default_permissions;
48 bool m_push_symlinks_in;
50 MockFS *m_mock = NULL;
51 const static uint64_t FH = 0xdeadbeef1a7ebabe;
58 * libfuse's default max_readahead is UINT_MAX, though it can
61 m_maxreadahead(UINT_MAX),
64 m_default_permissions(false),
65 m_push_symlinks_in(false),
71 virtual void TearDown() {
77 * Create an expectation that FUSE_ACCESS will be called once for the
78 * given inode with the given access_mode, returning the given errno
80 void expect_access(uint64_t ino, mode_t access_mode, int error);
83 * Create an expectation that FUSE_FLUSH will be called times times for
86 void expect_flush(uint64_t ino, int times, ProcessMockerT r);
89 * Create an expectation that FUSE_FORGET will be called for the given
90 * inode. There will be no response
92 void expect_forget(uint64_t ino, uint64_t nlookup);
95 * Create an expectation that FUSE_GETATTR will be called for the given
96 * inode any number of times. It will respond with a few basic
97 * attributes, like the given size and the mode S_IFREG | 0644
99 void expect_getattr(uint64_t ino, uint64_t size);
102 * Create an expectation that FUSE_LOOKUP will be called for the given
103 * path exactly times times and cache validity period. It will respond
104 * with inode ino, mode mode, filesize size.
106 void expect_lookup(const char *relpath, uint64_t ino, mode_t mode,
107 uint64_t size, int times, uint64_t attr_valid = UINT64_MAX,
108 uid_t uid = 0, gid_t gid = 0);
111 * Create an expectation that FUSE_OPEN will be called for the given
112 * inode exactly times times. It will return with open_flags flags and
115 void expect_open(uint64_t ino, uint32_t flags, int times);
118 * Create an expectation that FUSE_OPENDIR will be called exactly once
121 void expect_opendir(uint64_t ino);
124 * Create an expectation that FUSE_READ will be called exactly once for
125 * the given inode, at offset offset and with size isize. It will
126 * return the first osize bytes from contents
128 void expect_read(uint64_t ino, uint64_t offset, uint64_t isize,
129 uint64_t osize, const void *contents);
132 * Create an expectation that FUSE_RELEASE will be called exactly once
133 * for the given inode and filehandle, returning success
135 void expect_release(uint64_t ino, uint64_t fh);
138 * Create an expectation that FUSE_RELEASEDIR will be called exactly
139 * once for the given inode
141 void expect_releasedir(uint64_t ino, ProcessMockerT r);
144 * Create an expectation that FUSE_UNLINK will be called exactly once
145 * for the given path, returning an errno
147 void expect_unlink(uint64_t parent, const char *path, int error);
150 * Create an expectation that FUSE_WRITE will be called exactly once
151 * for the given inode, at offset offset, with write_flags flags,
152 * size isize and buffer contents. It will return osize
154 void expect_write(uint64_t ino, uint64_t offset, uint64_t isize,
155 uint64_t osize, uint32_t flags, const void *contents);
158 * Helper that runs code in a child process.
160 * First, parent_func runs in the parent process.
161 * Then, child_func runs in the child process, dropping privileges if
163 * Finally, fusetest_fork returns.
167 * fusetest_fork may SKIP the test, which the caller should detect with
168 * the IsSkipped() method. If not, then the child's exit status will
169 * be returned in status.
171 void fork(bool drop_privs, int *status,
172 std::function<void()> parent_func,
173 std::function<int()> child_func);