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 <dirent.h> 35 #include <fcntl.h> 36 } 37 38 #include "mockfs.hh" 39 #include "utils.hh" 40 41 using namespace testing; 42 43 class ReleaseDir: public FuseTest { 44 45 public: 46 void expect_lookup(const char *relpath, uint64_t ino) 47 { 48 FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1); 49 } 50 }; 51 52 /* If a file descriptor is duplicated, only the last close causes RELEASE */ 53 TEST_F(ReleaseDir, dup) 54 { 55 const char FULLPATH[] = "mountpoint/some_file.txt"; 56 const char RELPATH[] = "some_file.txt"; 57 uint64_t ino = 42; 58 DIR *dir, *dir2; 59 60 expect_lookup(RELPATH, ino); 61 expect_opendir(ino); 62 EXPECT_CALL(*m_mock, process( 63 ResultOf([=](auto in) { 64 return (in.header.opcode == FUSE_READDIR && 65 in.header.nodeid == ino && 66 in.body.readdir.offset == 0); 67 }, Eq(true)), 68 _) 69 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) { 70 out.header.error = 0; 71 out.header.len = sizeof(out.header); 72 }))); 73 expect_releasedir(ino, ReturnErrno(0)); 74 75 dir = opendir(FULLPATH); 76 ASSERT_NE(nullptr, dir) << strerror(errno); 77 78 dir2 = fdopendir(dup(dirfd(dir))); 79 ASSERT_NE(nullptr, dir2) << strerror(errno); 80 81 ASSERT_EQ(0, closedir(dir)) << strerror(errno); 82 ASSERT_EQ(0, closedir(dir2)) << strerror(errno); 83 } 84 85 TEST_F(ReleaseDir, ok) 86 { 87 const char FULLPATH[] = "mountpoint/some_dir"; 88 const char RELPATH[] = "some_dir"; 89 uint64_t ino = 42; 90 DIR *dir; 91 92 expect_lookup(RELPATH, ino); 93 expect_opendir(ino); 94 expect_releasedir(ino, ReturnErrno(0)); 95 96 dir = opendir(FULLPATH); 97 ASSERT_NE(nullptr, dir) << strerror(errno); 98 99 ASSERT_EQ(0, closedir(dir)) << strerror(errno); 100 } 101 102 /* Directories opened O_EXEC should be properly released, too */ 103 TEST_F(ReleaseDir, o_exec) 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_releasedir(ino, ReturnErrno(0)); 113 114 fd = open(FULLPATH, O_EXEC | O_DIRECTORY); 115 ASSERT_LE(0, fd) << strerror(errno); 116 117 ASSERT_EQ(0, close(fd)) << strerror(errno); 118 } 119