1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2019 The FreeBSD Foundation 5 * 6 * This software was developed by BFF Storage Systems, LLC under sponsorship 7 * from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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. 17 * 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 28 * SUCH DAMAGE. 29 */ 30 31 extern "C" { 32 #include <aio.h> 33 #include <fcntl.h> 34 #include <unistd.h> 35 } 36 37 #include "mockfs.hh" 38 #include "utils.hh" 39 40 using namespace testing; 41 42 /* 43 * TODO: remove FUSE_FSYNC_FDATASYNC definition when upgrading to protocol 7.28. 44 * This bit was actually part of kernel protocol version 5.2, but never 45 * documented until after 7.28 46 */ 47 #ifndef FUSE_FSYNC_FDATASYNC 48 #define FUSE_FSYNC_FDATASYNC 1 49 #endif 50 51 class FsyncDir: public FuseTest { 52 public: 53 void expect_fsyncdir(uint64_t ino, uint32_t flags, int error) 54 { 55 EXPECT_CALL(*m_mock, process( 56 ResultOf([=](auto in) { 57 return (in.header.opcode == FUSE_FSYNCDIR && 58 in.header.nodeid == ino && 59 /* 60 * TODO: reenable pid check after fixing 61 * bug 236379 62 */ 63 //(pid_t)in.header.pid == getpid() && 64 in.body.fsyncdir.fh == FH && 65 in.body.fsyncdir.fsync_flags == flags); 66 }, Eq(true)), 67 _) 68 ).WillOnce(Invoke(ReturnErrno(error))); 69 } 70 71 void expect_lookup(const char *relpath, uint64_t ino) 72 { 73 FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1); 74 } 75 76 }; 77 78 /* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236379 */ 79 TEST_F(FsyncDir, aio_fsync) 80 { 81 const char FULLPATH[] = "mountpoint/some_file.txt"; 82 const char RELPATH[] = "some_file.txt"; 83 uint64_t ino = 42; 84 struct aiocb iocb, *piocb; 85 int fd; 86 87 expect_lookup(RELPATH, ino); 88 expect_opendir(ino); 89 expect_fsyncdir(ino, 0, 0); 90 91 fd = open(FULLPATH, O_DIRECTORY); 92 ASSERT_LE(0, fd) << strerror(errno); 93 94 bzero(&iocb, sizeof(iocb)); 95 iocb.aio_fildes = fd; 96 97 ASSERT_EQ(0, aio_fsync(O_SYNC, &iocb)) << strerror(errno); 98 ASSERT_EQ(0, aio_waitcomplete(&piocb, NULL)) << strerror(errno); 99 100 leak(fd); 101 } 102 103 TEST_F(FsyncDir, eio) 104 { 105 const char FULLPATH[] = "mountpoint/some_dir"; 106 const char RELPATH[] = "some_dir"; 107 uint64_t ino = 42; 108 int fd; 109 110 expect_lookup(RELPATH, ino); 111 expect_opendir(ino); 112 expect_fsyncdir(ino, 0, EIO); 113 114 fd = open(FULLPATH, O_DIRECTORY); 115 ASSERT_LE(0, fd) << strerror(errno); 116 ASSERT_NE(0, fsync(fd)); 117 ASSERT_EQ(EIO, errno); 118 119 leak(fd); 120 } 121 122 /* 123 * If the filesystem returns ENOSYS, it will be treated as success and 124 * subsequent calls to VOP_FSYNC will succeed automatically without being sent 125 * to the filesystem daemon 126 */ 127 TEST_F(FsyncDir, enosys) 128 { 129 const char FULLPATH[] = "mountpoint/some_dir"; 130 const char RELPATH[] = "some_dir"; 131 uint64_t ino = 42; 132 int fd; 133 134 expect_lookup(RELPATH, ino); 135 expect_opendir(ino); 136 expect_fsyncdir(ino, 0, ENOSYS); 137 138 fd = open(FULLPATH, O_DIRECTORY); 139 ASSERT_LE(0, fd) << strerror(errno); 140 EXPECT_EQ(0, fsync(fd)) << strerror(errno); 141 142 /* Subsequent calls shouldn't query the daemon*/ 143 EXPECT_EQ(0, fsync(fd)) << strerror(errno); 144 145 leak(fd); 146 } 147 148 TEST_F(FsyncDir, fsyncdata) 149 { 150 const char FULLPATH[] = "mountpoint/some_dir"; 151 const char RELPATH[] = "some_dir"; 152 uint64_t ino = 42; 153 int fd; 154 155 expect_lookup(RELPATH, ino); 156 expect_opendir(ino); 157 expect_fsyncdir(ino, FUSE_FSYNC_FDATASYNC, 0); 158 159 fd = open(FULLPATH, O_DIRECTORY); 160 ASSERT_LE(0, fd) << strerror(errno); 161 ASSERT_EQ(0, fdatasync(fd)) << strerror(errno); 162 163 leak(fd); 164 } 165 166 /* 167 * Unlike regular files, the kernel doesn't know whether a directory is or 168 * isn't dirty, so fuse(4) should always send FUSE_FSYNCDIR on fsync(2) 169 */ 170 TEST_F(FsyncDir, fsync) 171 { 172 const char FULLPATH[] = "mountpoint/some_dir"; 173 const char RELPATH[] = "some_dir"; 174 uint64_t ino = 42; 175 int fd; 176 177 expect_lookup(RELPATH, ino); 178 expect_opendir(ino); 179 expect_fsyncdir(ino, 0, 0); 180 181 fd = open(FULLPATH, O_DIRECTORY); 182 ASSERT_LE(0, fd) << strerror(errno); 183 ASSERT_EQ(0, fsync(fd)) << strerror(errno); 184 185 leak(fd); 186 } 187