tests/sys/fs/fusefs/rmdir.cc

   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_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 }