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 <fcntl.h> 35 #include <semaphore.h> 36 } 37 38 #include "mockfs.hh" 39 #include "utils.hh" 40 41 using namespace testing; 42 43 class Rmdir: public FuseTest { 44 public: 45 void expect_getattr(uint64_t ino, mode_t mode) 46 { 47 EXPECT_CALL(*m_mock, process( 48 ResultOf([=](auto in) { 49 return (in.header.opcode == FUSE_GETATTR && 50 in.header.nodeid == ino); 51 }, Eq(true)), 52 _) 53 ).WillOnce(Invoke(ReturnImmediate([=](auto i __unused, auto& out) { 54 SET_OUT_HEADER_LEN(out, attr); 55 out.body.attr.attr.ino = ino; // Must match nodeid 56 out.body.attr.attr.mode = mode; 57 out.body.attr.attr_valid = UINT64_MAX; 58 }))); 59 } 60 61 void expect_lookup(const char *relpath, uint64_t ino, int times=1) 62 { 63 EXPECT_LOOKUP(FUSE_ROOT_ID, relpath) 64 .Times(times) 65 .WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto& out) { 66 SET_OUT_HEADER_LEN(out, entry); 67 out.body.entry.attr_valid = UINT64_MAX; 68 out.body.entry.attr.mode = S_IFDIR | 0755; 69 out.body.entry.nodeid = ino; 70 out.body.entry.attr.nlink = 2; 71 }))); 72 } 73 74 void expect_rmdir(uint64_t parent, const char *relpath, int error) 75 { 76 EXPECT_CALL(*m_mock, process( 77 ResultOf([=](auto in) { 78 return (in.header.opcode == FUSE_RMDIR && 79 0 == strcmp(relpath, in.body.rmdir) && 80 in.header.nodeid == parent); 81 }, Eq(true)), 82 _) 83 ).WillOnce(Invoke(ReturnErrno(error))); 84 } 85 }; 86 87 /* 88 * A successful rmdir should clear the parent directory's attribute cache, 89 * because the fuse daemon should update its mtime and ctime 90 */ 91 TEST_F(Rmdir, parent_attr_cache) 92 { 93 const char FULLPATH[] = "mountpoint/some_dir"; 94 const char RELPATH[] = "some_dir"; 95 struct stat sb; 96 sem_t sem; 97 uint64_t ino = 42; 98 99 ASSERT_EQ(0, sem_init(&sem, 0, 0)) << strerror(errno); 100 101 EXPECT_CALL(*m_mock, process( 102 ResultOf([=](auto in) { 103 return (in.header.opcode == FUSE_GETATTR && 104 in.header.nodeid == FUSE_ROOT_ID); 105 }, Eq(true)), 106 _) 107 ).Times(2) 108 .WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto& out) { 109 SET_OUT_HEADER_LEN(out, attr); 110 out.body.attr.attr.ino = ino; // Must match nodeid 111 out.body.attr.attr.mode = S_IFDIR | 0755; 112 out.body.attr.attr_valid = UINT64_MAX; 113 }))); 114 expect_lookup(RELPATH, ino); 115 expect_rmdir(FUSE_ROOT_ID, RELPATH, 0); 116 expect_forget(ino, 1, &sem); 117 118 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 119 EXPECT_EQ(0, stat("mountpoint", &sb)) << strerror(errno); 120 sem_wait(&sem); 121 sem_destroy(&sem); 122 } 123 124 TEST_F(Rmdir, enotempty) 125 { 126 const char FULLPATH[] = "mountpoint/some_dir"; 127 const char RELPATH[] = "some_dir"; 128 uint64_t ino = 42; 129 130 expect_getattr(FUSE_ROOT_ID, S_IFDIR | 0755); 131 expect_lookup(RELPATH, ino); 132 expect_rmdir(FUSE_ROOT_ID, RELPATH, ENOTEMPTY); 133 134 ASSERT_NE(0, rmdir(FULLPATH)); 135 ASSERT_EQ(ENOTEMPTY, errno); 136 } 137 138 /* Removing a directory should expire its entry cache */ 139 TEST_F(Rmdir, entry_cache) 140 { 141 const char FULLPATH[] = "mountpoint/some_dir"; 142 const char RELPATH[] = "some_dir"; 143 sem_t sem; 144 uint64_t ino = 42; 145 146 expect_getattr(1, S_IFDIR | 0755); 147 expect_lookup(RELPATH, ino, 2); 148 expect_rmdir(FUSE_ROOT_ID, RELPATH, 0); 149 expect_forget(ino, 1, &sem); 150 151 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 152 ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno); 153 sem_wait(&sem); 154 sem_destroy(&sem); 155 } 156 157 TEST_F(Rmdir, ok) 158 { 159 const char FULLPATH[] = "mountpoint/some_dir"; 160 const char RELPATH[] = "some_dir"; 161 sem_t sem; 162 uint64_t ino = 42; 163 164 ASSERT_EQ(0, sem_init(&sem, 0, 0)) << strerror(errno); 165 166 expect_getattr(FUSE_ROOT_ID, S_IFDIR | 0755); 167 expect_lookup(RELPATH, ino); 168 expect_rmdir(FUSE_ROOT_ID, RELPATH, 0); 169 expect_forget(ino, 1, &sem); 170 171 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 172 sem_wait(&sem); 173 sem_destroy(&sem); 174 } 175