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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include <errno.h> | |
| 6 #include <fcntl.h> | |
| 7 #include <poll.h> | |
| 8 #include <sys/socket.h> | |
| 9 #include <sys/stat.h> | |
| 10 #include <sys/time.h> | |
| 11 #include <sys/types.h> | |
| 12 #include <sys/un.h> | |
| 13 #include <unistd.h> | |
| 14 | |
| 15 #include <cstring> | |
| 16 #include <queue> | |
| 17 #include <string> | |
| 18 | |
| 19 #include "base/bind.h" | |
| 20 #include "base/callback.h" | |
| 21 #include "base/compiler_specific.h" | |
| 22 #include "base/file_util.h" | |
| 23 #include "base/files/file_path.h" | |
| 24 #include "base/memory/ref_counted.h" | |
| 25 #include "base/memory/scoped_ptr.h" | |
| 26 #include "base/message_loop/message_loop.h" | |
| 27 #include "base/posix/eintr_wrapper.h" | |
| 28 #include "base/synchronization/condition_variable.h" | |
| 29 #include "base/synchronization/lock.h" | |
| 30 #include "base/threading/platform_thread.h" | |
| 31 #include "base/threading/thread.h" | |
| 32 #include "net/socket/socket_descriptor.h" | |
| 33 #include "net/socket/unix_domain_socket_posix.h" | |
| 34 #include "testing/gtest/include/gtest/gtest.h" | |
| 35 | |
| 36 using std::queue; | |
| 37 using std::string; | |
| 38 | |
| 39 namespace net { | |
| 40 namespace { | |
| 41 | |
| 42 const char kSocketFilename[] = "unix_domain_socket_for_testing"; | |
| 43 const char kInvalidSocketPath[] = "/invalid/path"; | |
| 44 const char kMsg[] = "hello"; | |
| 45 | |
| 46 enum EventType { | |
| 47 EVENT_ACCEPT, | |
| 48 EVENT_AUTH_DENIED, | |
| 49 EVENT_AUTH_GRANTED, | |
| 50 EVENT_CLOSE, | |
| 51 EVENT_LISTEN, | |
| 52 EVENT_READ, | |
| 53 }; | |
| 54 | |
| 55 string MakeSocketPath(const string& socket_file_name) { | |
| 56 base::FilePath temp_dir; | |
| 57 base::GetTempDir(&temp_dir); | |
| 58 return temp_dir.Append(socket_file_name).value(); | |
| 59 } | |
| 60 | |
| 61 string MakeSocketPath() { | |
| 62 return MakeSocketPath(kSocketFilename); | |
| 63 } | |
| 64 | |
| 65 class EventManager : public base::RefCounted<EventManager> { | |
| 66 public: | |
| 67 EventManager() : condition_(&mutex_) {} | |
| 68 | |
| 69 bool HasPendingEvent() { | |
| 70 base::AutoLock lock(mutex_); | |
| 71 return !events_.empty(); | |
| 72 } | |
| 73 | |
| 74 void Notify(EventType event) { | |
| 75 base::AutoLock lock(mutex_); | |
| 76 events_.push(event); | |
| 77 condition_.Broadcast(); | |
| 78 } | |
| 79 | |
| 80 EventType WaitForEvent() { | |
| 81 base::AutoLock lock(mutex_); | |
| 82 while (events_.empty()) | |
| 83 condition_.Wait(); | |
| 84 EventType event = events_.front(); | |
| 85 events_.pop(); | |
| 86 return event; | |
| 87 } | |
| 88 | |
| 89 private: | |
| 90 friend class base::RefCounted<EventManager>; | |
| 91 virtual ~EventManager() {} | |
| 92 | |
| 93 queue<EventType> events_; | |
| 94 base::Lock mutex_; | |
| 95 base::ConditionVariable condition_; | |
| 96 }; | |
| 97 | |
| 98 class TestListenSocketDelegate : public StreamListenSocket::Delegate { | |
| 99 public: | |
| 100 explicit TestListenSocketDelegate( | |
| 101 const scoped_refptr<EventManager>& event_manager) | |
| 102 : event_manager_(event_manager) {} | |
| 103 | |
| 104 virtual void DidAccept(StreamListenSocket* server, | |
| 105 scoped_ptr<StreamListenSocket> connection) OVERRIDE { | |
| 106 LOG(ERROR) << __PRETTY_FUNCTION__; | |
| 107 connection_ = connection.Pass(); | |
| 108 Notify(EVENT_ACCEPT); | |
| 109 } | |
| 110 | |
| 111 virtual void DidRead(StreamListenSocket* connection, | |
| 112 const char* data, | |
| 113 int len) OVERRIDE { | |
| 114 { | |
| 115 base::AutoLock lock(mutex_); | |
| 116 DCHECK(len); | |
| 117 data_.assign(data, len - 1); | |
| 118 } | |
| 119 Notify(EVENT_READ); | |
| 120 } | |
| 121 | |
| 122 virtual void DidClose(StreamListenSocket* sock) OVERRIDE { | |
| 123 Notify(EVENT_CLOSE); | |
| 124 } | |
| 125 | |
| 126 void OnListenCompleted() { | |
| 127 Notify(EVENT_LISTEN); | |
| 128 } | |
| 129 | |
| 130 string ReceivedData() { | |
| 131 base::AutoLock lock(mutex_); | |
| 132 return data_; | |
| 133 } | |
| 134 | |
| 135 private: | |
| 136 void Notify(EventType event) { | |
| 137 event_manager_->Notify(event); | |
| 138 } | |
| 139 | |
| 140 const scoped_refptr<EventManager> event_manager_; | |
| 141 scoped_ptr<StreamListenSocket> connection_; | |
| 142 base::Lock mutex_; | |
| 143 string data_; | |
| 144 }; | |
| 145 | |
| 146 bool UserCanConnectCallback( | |
| 147 bool allow_user, const scoped_refptr<EventManager>& event_manager, | |
| 148 uid_t, gid_t) { | |
| 149 event_manager->Notify( | |
| 150 allow_user ? EVENT_AUTH_GRANTED : EVENT_AUTH_DENIED); | |
| 151 return allow_user; | |
| 152 } | |
| 153 | |
| 154 class UnixDomainSocketTestHelper : public testing::Test { | |
| 155 public: | |
| 156 void CreateAndListen() { | |
| 157 socket_ = UnixDomainSocket::CreateAndListen( | |
| 158 file_path_.value(), socket_delegate_.get(), MakeAuthCallback()); | |
| 159 socket_delegate_->OnListenCompleted(); | |
| 160 } | |
| 161 | |
| 162 protected: | |
| 163 UnixDomainSocketTestHelper(const string& path, bool allow_user) | |
| 164 : file_path_(path), | |
| 165 allow_user_(allow_user) {} | |
| 166 | |
| 167 virtual void SetUp() OVERRIDE { | |
| 168 event_manager_ = new EventManager(); | |
| 169 socket_delegate_.reset(new TestListenSocketDelegate(event_manager_)); | |
| 170 DeleteSocketFile(); | |
| 171 } | |
| 172 | |
| 173 virtual void TearDown() OVERRIDE { | |
| 174 DeleteSocketFile(); | |
| 175 socket_.reset(); | |
| 176 socket_delegate_.reset(); | |
| 177 event_manager_ = NULL; | |
| 178 } | |
| 179 | |
| 180 UnixDomainSocket::AuthCallback MakeAuthCallback() { | |
| 181 return base::Bind(&UserCanConnectCallback, allow_user_, event_manager_); | |
| 182 } | |
| 183 | |
| 184 void DeleteSocketFile() { | |
| 185 ASSERT_FALSE(file_path_.empty()); | |
| 186 base::DeleteFile(file_path_, false /* not recursive */); | |
| 187 } | |
| 188 | |
| 189 SocketDescriptor CreateClientSocket() { | |
| 190 const SocketDescriptor sock = CreatePlatformSocket(PF_UNIX, SOCK_STREAM, 0); | |
| 191 if (sock < 0) { | |
| 192 LOG(ERROR) << "socket() error"; | |
| 193 return kInvalidSocket; | |
| 194 } | |
| 195 sockaddr_un addr; | |
| 196 memset(&addr, 0, sizeof(addr)); | |
| 197 addr.sun_family = AF_UNIX; | |
| 198 socklen_t addr_len; | |
| 199 strncpy(addr.sun_path, file_path_.value().c_str(), sizeof(addr.sun_path)); | |
| 200 addr_len = sizeof(sockaddr_un); | |
| 201 if (connect(sock, reinterpret_cast<sockaddr*>(&addr), addr_len) != 0) { | |
| 202 LOG(ERROR) << "connect() error"; | |
| 203 return kInvalidSocket; | |
| 204 } | |
| 205 return sock; | |
| 206 } | |
| 207 | |
| 208 scoped_ptr<base::Thread> CreateAndRunServerThread() { | |
| 209 base::Thread::Options options; | |
| 210 options.message_loop_type = base::MessageLoop::TYPE_IO; | |
| 211 scoped_ptr<base::Thread> thread(new base::Thread("socketio_test")); | |
| 212 thread->StartWithOptions(options); | |
| 213 thread->message_loop()->PostTask( | |
| 214 FROM_HERE, | |
| 215 base::Bind(&UnixDomainSocketTestHelper::CreateAndListen, | |
| 216 base::Unretained(this))); | |
| 217 return thread.Pass(); | |
| 218 } | |
| 219 | |
| 220 const base::FilePath file_path_; | |
| 221 const bool allow_user_; | |
| 222 scoped_refptr<EventManager> event_manager_; | |
| 223 scoped_ptr<TestListenSocketDelegate> socket_delegate_; | |
| 224 scoped_ptr<UnixDomainSocket> socket_; | |
| 225 }; | |
| 226 | |
| 227 class UnixDomainSocketTest : public UnixDomainSocketTestHelper { | |
| 228 protected: | |
| 229 UnixDomainSocketTest() | |
| 230 : UnixDomainSocketTestHelper(MakeSocketPath(), true /* allow user */) {} | |
| 231 }; | |
| 232 | |
| 233 class UnixDomainSocketTestWithInvalidPath : public UnixDomainSocketTestHelper { | |
| 234 protected: | |
| 235 UnixDomainSocketTestWithInvalidPath() | |
| 236 : UnixDomainSocketTestHelper(kInvalidSocketPath, true) {} | |
| 237 }; | |
| 238 | |
| 239 class UnixDomainSocketTestWithForbiddenUser | |
| 240 : public UnixDomainSocketTestHelper { | |
| 241 protected: | |
| 242 UnixDomainSocketTestWithForbiddenUser() | |
| 243 : UnixDomainSocketTestHelper(MakeSocketPath(), false /* forbid user */) {} | |
| 244 }; | |
| 245 | |
| 246 TEST_F(UnixDomainSocketTest, CreateAndListen) { | |
| 247 CreateAndListen(); | |
| 248 EXPECT_FALSE(socket_.get() == NULL); | |
| 249 } | |
| 250 | |
| 251 TEST_F(UnixDomainSocketTestWithInvalidPath, CreateAndListenWithInvalidPath) { | |
| 252 CreateAndListen(); | |
| 253 EXPECT_TRUE(socket_.get() == NULL); | |
| 254 } | |
| 255 | |
| 256 #ifdef SOCKET_ABSTRACT_NAMESPACE_SUPPORTED | |
| 257 // Test with an invalid path to make sure that the socket is not backed by a | |
| 258 // file. | |
| 259 TEST_F(UnixDomainSocketTestWithInvalidPath, | |
| 260 CreateAndListenWithAbstractNamespace) { | |
| 261 socket_ = UnixDomainSocket::CreateAndListenWithAbstractNamespace( | |
| 262 file_path_.value(), "", socket_delegate_.get(), MakeAuthCallback()); | |
| 263 EXPECT_FALSE(socket_.get() == NULL); | |
| 264 } | |
| 265 | |
| 266 TEST_F(UnixDomainSocketTest, TestFallbackName) { | |
| 267 scoped_ptr<UnixDomainSocket> existing_socket = | |
| 268 UnixDomainSocket::CreateAndListenWithAbstractNamespace( | |
| 269 file_path_.value(), "", socket_delegate_.get(), MakeAuthCallback()); | |
| 270 EXPECT_FALSE(existing_socket.get() == NULL); | |
| 271 // First, try to bind socket with the same name with no fallback name. | |
| 272 socket_ = | |
| 273 UnixDomainSocket::CreateAndListenWithAbstractNamespace( | |
| 274 file_path_.value(), "", socket_delegate_.get(), MakeAuthCallback()); | |
| 275 EXPECT_TRUE(socket_.get() == NULL); | |
| 276 // Now with a fallback name. | |
| 277 const char kFallbackSocketName[] = "unix_domain_socket_for_testing_2"; | |
| 278 socket_ = UnixDomainSocket::CreateAndListenWithAbstractNamespace( | |
| 279 file_path_.value(), | |
| 280 MakeSocketPath(kFallbackSocketName), | |
| 281 socket_delegate_.get(), | |
| 282 MakeAuthCallback()); | |
| 283 EXPECT_FALSE(socket_.get() == NULL); | |
| 284 } | |
| 285 #endif | |
| 286 | |
| 287 TEST_F(UnixDomainSocketTest, TestWithClient) { | |
| 288 const scoped_ptr<base::Thread> server_thread = CreateAndRunServerThread(); | |
| 289 EventType event = event_manager_->WaitForEvent(); | |
| 290 ASSERT_EQ(EVENT_LISTEN, event); | |
| 291 | |
| 292 // Create the client socket. | |
| 293 const SocketDescriptor sock = CreateClientSocket(); | |
| 294 ASSERT_NE(kInvalidSocket, sock); | |
| 295 event = event_manager_->WaitForEvent(); | |
| 296 ASSERT_EQ(EVENT_AUTH_GRANTED, event); | |
| 297 event = event_manager_->WaitForEvent(); | |
| 298 ASSERT_EQ(EVENT_ACCEPT, event); | |
| 299 | |
| 300 // Send a message from the client to the server. | |
| 301 ssize_t ret = HANDLE_EINTR(send(sock, kMsg, sizeof(kMsg), 0)); | |
| 302 ASSERT_NE(-1, ret); | |
| 303 ASSERT_EQ(sizeof(kMsg), static_cast<size_t>(ret)); | |
| 304 event = event_manager_->WaitForEvent(); | |
| 305 ASSERT_EQ(EVENT_READ, event); | |
| 306 ASSERT_EQ(kMsg, socket_delegate_->ReceivedData()); | |
| 307 | |
| 308 // Close the client socket. | |
| 309 ret = IGNORE_EINTR(close(sock)); | |
| 310 event = event_manager_->WaitForEvent(); | |
| 311 ASSERT_EQ(EVENT_CLOSE, event); | |
| 312 } | |
| 313 | |
| 314 TEST_F(UnixDomainSocketTestWithForbiddenUser, TestWithForbiddenUser) { | |
| 315 const scoped_ptr<base::Thread> server_thread = CreateAndRunServerThread(); | |
| 316 EventType event = event_manager_->WaitForEvent(); | |
| 317 ASSERT_EQ(EVENT_LISTEN, event); | |
| 318 const SocketDescriptor sock = CreateClientSocket(); | |
| 319 ASSERT_NE(kInvalidSocket, sock); | |
| 320 | |
| 321 event = event_manager_->WaitForEvent(); | |
| 322 ASSERT_EQ(EVENT_AUTH_DENIED, event); | |
| 323 | |
| 324 // Wait until the file descriptor is closed by the server. | |
| 325 struct pollfd poll_fd; | |
| 326 poll_fd.fd = sock; | |
| 327 poll_fd.events = POLLIN; | |
| 328 poll(&poll_fd, 1, -1 /* rely on GTest for timeout handling */); | |
| 329 | |
| 330 // Send() must fail. | |
| 331 ssize_t ret = HANDLE_EINTR(send(sock, kMsg, sizeof(kMsg), 0)); | |
| 332 ASSERT_EQ(-1, ret); | |
| 333 ASSERT_EQ(EPIPE, errno); | |
| 334 ASSERT_FALSE(event_manager_->HasPendingEvent()); | |
| 335 } | |
| 336 | |
| 337 } // namespace | |
| 338 } // namespace net | |
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Chromium Code Reviews
Issue 376323002:
Refactor unix domain socket. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master