1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 <fcntl.h> 33 #include <semaphore.h> 34 } 35 36 #include "mockfs.hh" 37 #include "utils.hh" 38 39 using namespace testing; 40 41 class Rmdir: public FuseTest { 42 public: 43 void expect_lookup(const char *relpath, uint64_t ino, int times=1) 44 { 45 EXPECT_LOOKUP(FUSE_ROOT_ID, relpath) 46 .Times(times) 47 .WillRepeatedly(Invoke(ReturnImmediate([=](auto in __unused, auto& out) { 48 SET_OUT_HEADER_LEN(out, entry); 49 out.body.entry.attr_valid = UINT64_MAX; 50 out.body.entry.attr.mode = S_IFDIR | 0755; 51 out.body.entry.nodeid = ino; 52 out.body.entry.attr.nlink = 2; 53 }))); 54 } 55 56 void expect_rmdir(uint64_t parent, const char *relpath, int error) 57 { 58 EXPECT_CALL(*m_mock, process( 59 ResultOf([=](auto in) { 60 return (in.header.opcode == FUSE_RMDIR && 61 0 == strcmp(relpath, in.body.rmdir) && 62 in.header.nodeid == parent); 63 }, Eq(true)), 64 _) 65 ).WillOnce(Invoke(ReturnErrno(error))); 66 } 67 }; 68 69 /* 70 * A successful rmdir should clear the parent directory's attribute cache, 71 * because the fuse daemon should update its mtime and ctime 72 */ 73 TEST_F(Rmdir, parent_attr_cache) 74 { 75 const char FULLPATH[] = "mountpoint/some_dir"; 76 const char RELPATH[] = "some_dir"; 77 struct stat sb; 78 sem_t sem; 79 uint64_t ino = 42; 80 Sequence seq; 81 82 ASSERT_EQ(0, sem_init(&sem, 0, 0)) << strerror(errno); 83 84 expect_lookup(RELPATH, ino); 85 EXPECT_CALL(*m_mock, process( 86 ResultOf([=](auto in) { 87 return (in.header.opcode == FUSE_RMDIR && 88 0 == strcmp(RELPATH, in.body.rmdir) && 89 in.header.nodeid == FUSE_ROOT_ID); 90 }, Eq(true)), 91 _) 92 ).InSequence(seq) 93 .WillOnce(Invoke(ReturnErrno(0))); 94 expect_forget(ino, 1, &sem); 95 EXPECT_CALL(*m_mock, process( 96 ResultOf([=](auto in) { 97 return (in.header.opcode == FUSE_GETATTR && 98 in.header.nodeid == FUSE_ROOT_ID); 99 }, Eq(true)), 100 _) 101 ).InSequence(seq) 102 .WillRepeatedly(Invoke(ReturnImmediate([=](auto i __unused, auto& out) { 103 SET_OUT_HEADER_LEN(out, attr); 104 out.body.attr.attr.ino = FUSE_ROOT_ID; 105 out.body.attr.attr.mode = S_IFDIR | 0755; 106 out.body.attr.attr_valid = UINT64_MAX; 107 }))); 108 109 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 110 EXPECT_EQ(0, stat("mountpoint", &sb)) << strerror(errno); 111 sem_wait(&sem); 112 sem_destroy(&sem); 113 } 114 115 TEST_F(Rmdir, enotempty) 116 { 117 const char FULLPATH[] = "mountpoint/some_dir"; 118 const char RELPATH[] = "some_dir"; 119 uint64_t ino = 42; 120 121 expect_lookup(RELPATH, ino); 122 expect_rmdir(FUSE_ROOT_ID, RELPATH, ENOTEMPTY); 123 124 ASSERT_NE(0, rmdir(FULLPATH)); 125 ASSERT_EQ(ENOTEMPTY, errno); 126 } 127 128 /* Removing a directory should expire its entry cache */ 129 TEST_F(Rmdir, entry_cache) 130 { 131 const char FULLPATH[] = "mountpoint/some_dir"; 132 const char RELPATH[] = "some_dir"; 133 sem_t sem; 134 uint64_t ino = 42; 135 136 expect_lookup(RELPATH, ino, 2); 137 expect_rmdir(FUSE_ROOT_ID, RELPATH, 0); 138 expect_forget(ino, 1, &sem); 139 140 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 141 ASSERT_EQ(0, access(FULLPATH, F_OK)) << strerror(errno); 142 sem_wait(&sem); 143 sem_destroy(&sem); 144 } 145 146 TEST_F(Rmdir, ok) 147 { 148 const char FULLPATH[] = "mountpoint/some_dir"; 149 const char RELPATH[] = "some_dir"; 150 sem_t sem; 151 uint64_t ino = 42; 152 153 ASSERT_EQ(0, sem_init(&sem, 0, 0)) << strerror(errno); 154 155 expect_lookup(RELPATH, ino); 156 expect_rmdir(FUSE_ROOT_ID, RELPATH, 0); 157 expect_forget(ino, 1, &sem); 158 159 ASSERT_EQ(0, rmdir(FULLPATH)) << strerror(errno); 160 sem_wait(&sem); 161 sem_destroy(&sem); 162 } 163