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