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 * $FreeBSD$ 31 */ 32 33 extern "C" { 34 #include <aio.h> 35 #include <fcntl.h> 36 #include <unistd.h> 37 } 38 39 #include "mockfs.hh" 40 #include "utils.hh" 41 42 using namespace testing; 43 44 /* 45 * TODO: remove FUSE_FSYNC_FDATASYNC definition when upgrading to protocol 7.28. 46 * This bit was actually part of kernel protocol version 5.2, but never 47 * documented until after 7.28 48 */ 49 #ifndef FUSE_FSYNC_FDATASYNC 50 #define FUSE_FSYNC_FDATASYNC 1 51 #endif 52 53 class FsyncDir: public FuseTest { 54 public: 55 void expect_fsyncdir(uint64_t ino, uint32_t flags, int error) 56 { 57 EXPECT_CALL(*m_mock, process( 58 ResultOf([=](auto in) { 59 return (in.header.opcode == FUSE_FSYNCDIR && 60 in.header.nodeid == ino && 61 /* 62 * TODO: reenable pid check after fixing 63 * bug 236379 64 */ 65 //(pid_t)in.header.pid == getpid() && 66 in.body.fsyncdir.fh == FH && 67 in.body.fsyncdir.fsync_flags == flags); 68 }, Eq(true)), 69 _) 70 ).WillOnce(Invoke(ReturnErrno(error))); 71 } 72 73 void expect_lookup(const char *relpath, uint64_t ino) 74 { 75 FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1); 76 } 77 78 }; 79 80 class AioFsyncDir: public FsyncDir { 81 virtual void SetUp() { 82 if (!is_unsafe_aio_enabled()) 83 GTEST_SKIP() << 84 "vfs.aio.enable_unsafe must be set for this test"; 85 FuseTest::SetUp(); 86 } 87 }; 88 89 /* https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236379 */ 90 TEST_F(AioFsyncDir, aio_fsync) 91 { 92 const char FULLPATH[] = "mountpoint/some_file.txt"; 93 const char RELPATH[] = "some_file.txt"; 94 uint64_t ino = 42; 95 struct aiocb iocb, *piocb; 96 int fd; 97 98 expect_lookup(RELPATH, ino); 99 expect_opendir(ino); 100 expect_fsyncdir(ino, 0, 0); 101 102 fd = open(FULLPATH, O_DIRECTORY); 103 ASSERT_LE(0, fd) << strerror(errno); 104 105 bzero(&iocb, sizeof(iocb)); 106 iocb.aio_fildes = fd; 107 108 ASSERT_EQ(0, aio_fsync(O_SYNC, &iocb)) << strerror(errno); 109 ASSERT_EQ(0, aio_waitcomplete(&piocb, NULL)) << strerror(errno); 110 111 leak(fd); 112 } 113 114 TEST_F(FsyncDir, eio) 115 { 116 const char FULLPATH[] = "mountpoint/some_dir"; 117 const char RELPATH[] = "some_dir"; 118 uint64_t ino = 42; 119 int fd; 120 121 expect_lookup(RELPATH, ino); 122 expect_opendir(ino); 123 expect_fsyncdir(ino, 0, EIO); 124 125 fd = open(FULLPATH, O_DIRECTORY); 126 ASSERT_LE(0, fd) << strerror(errno); 127 ASSERT_NE(0, fsync(fd)); 128 ASSERT_EQ(EIO, errno); 129 130 leak(fd); 131 } 132 133 /* 134 * If the filesystem returns ENOSYS, it will be treated as success and 135 * subsequent calls to VOP_FSYNC will succeed automatically without being sent 136 * to the filesystem daemon 137 */ 138 TEST_F(FsyncDir, enosys) 139 { 140 const char FULLPATH[] = "mountpoint/some_dir"; 141 const char RELPATH[] = "some_dir"; 142 uint64_t ino = 42; 143 int fd; 144 145 expect_lookup(RELPATH, ino); 146 expect_opendir(ino); 147 expect_fsyncdir(ino, 0, ENOSYS); 148 149 fd = open(FULLPATH, O_DIRECTORY); 150 ASSERT_LE(0, fd) << strerror(errno); 151 EXPECT_EQ(0, fsync(fd)) << strerror(errno); 152 153 /* Subsequent calls shouldn't query the daemon*/ 154 EXPECT_EQ(0, fsync(fd)) << strerror(errno); 155 156 leak(fd); 157 } 158 159 TEST_F(FsyncDir, fsyncdata) 160 { 161 const char FULLPATH[] = "mountpoint/some_dir"; 162 const char RELPATH[] = "some_dir"; 163 uint64_t ino = 42; 164 int fd; 165 166 expect_lookup(RELPATH, ino); 167 expect_opendir(ino); 168 expect_fsyncdir(ino, FUSE_FSYNC_FDATASYNC, 0); 169 170 fd = open(FULLPATH, O_DIRECTORY); 171 ASSERT_LE(0, fd) << strerror(errno); 172 ASSERT_EQ(0, fdatasync(fd)) << strerror(errno); 173 174 leak(fd); 175 } 176 177 /* 178 * Unlike regular files, the kernel doesn't know whether a directory is or 179 * isn't dirty, so fuse(4) should always send FUSE_FSYNCDIR on fsync(2) 180 */ 181 TEST_F(FsyncDir, fsync) 182 { 183 const char FULLPATH[] = "mountpoint/some_dir"; 184 const char RELPATH[] = "some_dir"; 185 uint64_t ino = 42; 186 int fd; 187 188 expect_lookup(RELPATH, ino); 189 expect_opendir(ino); 190 expect_fsyncdir(ino, 0, 0); 191 192 fd = open(FULLPATH, O_DIRECTORY); 193 ASSERT_LE(0, fd) << strerror(errno); 194 ASSERT_EQ(0, fsync(fd)) << strerror(errno); 195 196 leak(fd); 197 } 198