Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specic language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Daichi Hirono | c613476 | 2016-10-27 14:57:55 +0900 | [diff] [blame] | 17 | #include "libappfuse/FuseBuffer.h" |
Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 18 | |
| 19 | #include <fcntl.h> |
| 20 | #include <string.h> |
| 21 | #include <sys/socket.h> |
| 22 | |
Daichi Hirono | cb9153b | 2016-12-08 14:22:13 +0900 | [diff] [blame] | 23 | #include <thread> |
| 24 | |
Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 25 | #include <android-base/unique_fd.h> |
| 26 | #include <gtest/gtest.h> |
| 27 | |
| 28 | namespace android { |
Daichi Hirono | a0aecda | 2016-11-08 10:17:51 +0900 | [diff] [blame] | 29 | namespace fuse { |
Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 30 | |
| 31 | constexpr char kTempFile[] = "/data/local/tmp/appfuse_test_dump"; |
| 32 | |
| 33 | void OpenTempFile(android::base::unique_fd* fd) { |
George Burgess IV | d6f2e69 | 2017-02-08 23:40:34 -0800 | [diff] [blame] | 34 | fd->reset(open(kTempFile, O_CREAT | O_RDWR, 0600)); |
Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 35 | ASSERT_NE(-1, *fd) << strerror(errno); |
| 36 | unlink(kTempFile); |
| 37 | ASSERT_NE(-1, *fd) << strerror(errno); |
| 38 | } |
| 39 | |
| 40 | void TestReadInvalidLength(size_t headerSize, size_t write_size) { |
| 41 | android::base::unique_fd fd; |
| 42 | OpenTempFile(&fd); |
| 43 | |
| 44 | char buffer[std::max(headerSize, sizeof(FuseRequest))]; |
| 45 | FuseRequest* const packet = reinterpret_cast<FuseRequest*>(buffer); |
| 46 | packet->header.len = headerSize; |
| 47 | ASSERT_NE(-1, write(fd, packet, write_size)) << strerror(errno); |
| 48 | |
| 49 | lseek(fd, 0, SEEK_SET); |
| 50 | EXPECT_FALSE(packet->Read(fd)); |
| 51 | } |
| 52 | |
| 53 | void TestWriteInvalidLength(size_t size) { |
| 54 | android::base::unique_fd fd; |
| 55 | OpenTempFile(&fd); |
| 56 | |
| 57 | char buffer[std::max(size, sizeof(FuseRequest))]; |
| 58 | FuseRequest* const packet = reinterpret_cast<FuseRequest*>(buffer); |
| 59 | packet->header.len = size; |
| 60 | EXPECT_FALSE(packet->Write(fd)); |
| 61 | } |
| 62 | |
| 63 | // Use FuseRequest as a template instance of FuseMessage. |
| 64 | |
| 65 | TEST(FuseMessageTest, ReadAndWrite) { |
| 66 | android::base::unique_fd fd; |
| 67 | OpenTempFile(&fd); |
| 68 | |
| 69 | FuseRequest request; |
| 70 | request.header.len = sizeof(FuseRequest); |
| 71 | request.header.opcode = 1; |
| 72 | request.header.unique = 2; |
| 73 | request.header.nodeid = 3; |
| 74 | request.header.uid = 4; |
| 75 | request.header.gid = 5; |
| 76 | request.header.pid = 6; |
| 77 | strcpy(request.lookup_name, "test"); |
| 78 | |
| 79 | ASSERT_TRUE(request.Write(fd)); |
| 80 | |
| 81 | memset(&request, 0, sizeof(FuseRequest)); |
| 82 | lseek(fd, 0, SEEK_SET); |
| 83 | |
| 84 | ASSERT_TRUE(request.Read(fd)); |
| 85 | EXPECT_EQ(sizeof(FuseRequest), request.header.len); |
| 86 | EXPECT_EQ(1u, request.header.opcode); |
| 87 | EXPECT_EQ(2u, request.header.unique); |
| 88 | EXPECT_EQ(3u, request.header.nodeid); |
| 89 | EXPECT_EQ(4u, request.header.uid); |
| 90 | EXPECT_EQ(5u, request.header.gid); |
| 91 | EXPECT_EQ(6u, request.header.pid); |
| 92 | EXPECT_STREQ("test", request.lookup_name); |
| 93 | } |
| 94 | |
| 95 | TEST(FuseMessageTest, Read_InconsistentLength) { |
| 96 | TestReadInvalidLength(sizeof(fuse_in_header), sizeof(fuse_in_header) + 1); |
| 97 | } |
| 98 | |
| 99 | TEST(FuseMessageTest, Read_TooLong) { |
| 100 | TestReadInvalidLength(sizeof(FuseRequest) + 1, sizeof(FuseRequest) + 1); |
| 101 | } |
| 102 | |
| 103 | TEST(FuseMessageTest, Read_TooShort) { |
| 104 | TestReadInvalidLength(sizeof(fuse_in_header) - 1, sizeof(fuse_in_header) - 1); |
| 105 | } |
| 106 | |
| 107 | TEST(FuseMessageTest, Write_TooLong) { |
| 108 | TestWriteInvalidLength(sizeof(FuseRequest) + 1); |
| 109 | } |
| 110 | |
| 111 | TEST(FuseMessageTest, Write_TooShort) { |
| 112 | TestWriteInvalidLength(sizeof(fuse_in_header) - 1); |
| 113 | } |
| 114 | |
| 115 | TEST(FuseResponseTest, Reset) { |
| 116 | FuseResponse response; |
| 117 | // Write 1 to the first ten bytes. |
| 118 | memset(response.read_data, 'a', 10); |
| 119 | |
| 120 | response.Reset(0, -1, 2); |
| 121 | EXPECT_EQ(sizeof(fuse_out_header), response.header.len); |
| 122 | EXPECT_EQ(-1, response.header.error); |
| 123 | EXPECT_EQ(2u, response.header.unique); |
| 124 | EXPECT_EQ('a', response.read_data[0]); |
| 125 | EXPECT_EQ('a', response.read_data[9]); |
| 126 | |
| 127 | response.Reset(5, -4, 3); |
| 128 | EXPECT_EQ(sizeof(fuse_out_header) + 5, response.header.len); |
| 129 | EXPECT_EQ(-4, response.header.error); |
| 130 | EXPECT_EQ(3u, response.header.unique); |
| 131 | EXPECT_EQ(0, response.read_data[0]); |
| 132 | EXPECT_EQ(0, response.read_data[1]); |
| 133 | EXPECT_EQ(0, response.read_data[2]); |
| 134 | EXPECT_EQ(0, response.read_data[3]); |
| 135 | EXPECT_EQ(0, response.read_data[4]); |
| 136 | EXPECT_EQ('a', response.read_data[5]); |
| 137 | } |
| 138 | |
| 139 | TEST(FuseResponseTest, ResetHeader) { |
| 140 | FuseResponse response; |
| 141 | // Write 1 to the first ten bytes. |
| 142 | memset(response.read_data, 'a', 10); |
| 143 | |
| 144 | response.ResetHeader(0, -1, 2); |
| 145 | EXPECT_EQ(sizeof(fuse_out_header), response.header.len); |
| 146 | EXPECT_EQ(-1, response.header.error); |
| 147 | EXPECT_EQ(2u, response.header.unique); |
| 148 | EXPECT_EQ('a', response.read_data[0]); |
| 149 | EXPECT_EQ('a', response.read_data[9]); |
| 150 | |
| 151 | response.ResetHeader(5, -4, 3); |
| 152 | EXPECT_EQ(sizeof(fuse_out_header) + 5, response.header.len); |
| 153 | EXPECT_EQ(-4, response.header.error); |
| 154 | EXPECT_EQ(3u, response.header.unique); |
| 155 | EXPECT_EQ('a', response.read_data[0]); |
| 156 | EXPECT_EQ('a', response.read_data[9]); |
| 157 | } |
| 158 | |
| 159 | TEST(FuseBufferTest, HandleInit) { |
| 160 | FuseBuffer buffer; |
| 161 | memset(&buffer, 0, sizeof(FuseBuffer)); |
| 162 | |
| 163 | buffer.request.header.opcode = FUSE_INIT; |
| 164 | buffer.request.init_in.major = FUSE_KERNEL_VERSION; |
| 165 | buffer.request.init_in.minor = FUSE_KERNEL_MINOR_VERSION; |
| 166 | |
| 167 | buffer.HandleInit(); |
| 168 | |
Daichi Hirono | 471ad6a | 2016-11-10 09:41:54 +0900 | [diff] [blame] | 169 | ASSERT_EQ(sizeof(fuse_out_header) + FUSE_COMPAT_22_INIT_OUT_SIZE, |
Daichi Hirono | 7f8e819 | 2016-10-27 10:37:05 +0900 | [diff] [blame] | 170 | buffer.response.header.len); |
| 171 | EXPECT_EQ(kFuseSuccess, buffer.response.header.error); |
| 172 | EXPECT_EQ(static_cast<unsigned int>(FUSE_KERNEL_VERSION), |
| 173 | buffer.response.init_out.major); |
| 174 | EXPECT_EQ(15u, buffer.response.init_out.minor); |
| 175 | EXPECT_EQ(static_cast<unsigned int>(FUSE_ATOMIC_O_TRUNC | FUSE_BIG_WRITES), |
| 176 | buffer.response.init_out.flags); |
| 177 | EXPECT_EQ(kFuseMaxWrite, buffer.response.init_out.max_write); |
| 178 | } |
| 179 | |
| 180 | TEST(FuseBufferTest, HandleNotImpl) { |
| 181 | FuseBuffer buffer; |
| 182 | memset(&buffer, 0, sizeof(FuseBuffer)); |
| 183 | |
| 184 | buffer.HandleNotImpl(); |
| 185 | |
| 186 | ASSERT_EQ(sizeof(fuse_out_header), buffer.response.header.len); |
| 187 | EXPECT_EQ(-ENOSYS, buffer.response.header.error); |
| 188 | } |
Daichi Hirono | a0aecda | 2016-11-08 10:17:51 +0900 | [diff] [blame] | 189 | |
Daichi Hirono | 57b780f | 2017-03-06 14:02:42 +0900 | [diff] [blame] | 190 | TEST(SetupMessageSocketsTest, Stress) { |
| 191 | constexpr int kCount = 1000; |
| 192 | |
| 193 | FuseRequest request; |
| 194 | request.header.len = sizeof(FuseRequest); |
| 195 | |
| 196 | base::unique_fd fds[2]; |
| 197 | SetupMessageSockets(&fds); |
| 198 | |
| 199 | std::thread thread([&fds] { |
| 200 | FuseRequest request; |
| 201 | for (int i = 0; i < kCount; ++i) { |
| 202 | ASSERT_TRUE(request.Read(fds[1])); |
| 203 | usleep(1000); |
| 204 | } |
| 205 | }); |
| 206 | |
| 207 | for (int i = 0; i < kCount; ++i) { |
| 208 | ASSERT_TRUE(request.Write(fds[0])); |
| 209 | } |
| 210 | |
| 211 | thread.join(); |
| 212 | } |
| 213 | |
Daichi Hirono | a0aecda | 2016-11-08 10:17:51 +0900 | [diff] [blame] | 214 | } // namespace fuse |
| 215 | } // namespace android |