1 // Copyright 2014 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 "net/socket/unix_domain_server_socket_posix.h" 6 7 #include <vector> 8 9 #include "base/bind.h" 10 #include "base/files/file_path.h" 11 #include "base/files/scoped_temp_dir.h" 12 #include "base/memory/scoped_ptr.h" 13 #include "base/run_loop.h" 14 #include "base/stl_util.h" 15 #include "net/base/io_buffer.h" 16 #include "net/base/net_errors.h" 17 #include "net/base/test_completion_callback.h" 18 #include "net/socket/unix_domain_client_socket_posix.h" 19 #include "testing/gtest/include/gtest/gtest.h" 20 21 namespace net { 22 namespace { 23 24 const char kSocketFilename[] = "socket_for_testing"; 25 const char kInvalidSocketPath[] = "/invalid/path"; 26 27 bool UserCanConnectCallback(bool allow_user, 28 const UnixDomainServerSocket::Credentials& credentials) { 29 // Here peers are running in same process. 30 #if defined(OS_LINUX) || defined(OS_ANDROID) 31 EXPECT_EQ(getpid(), credentials.process_id); 32 #endif 33 EXPECT_EQ(getuid(), credentials.user_id); 34 EXPECT_EQ(getgid(), credentials.group_id); 35 return allow_user; 36 } 37 38 UnixDomainServerSocket::AuthCallback CreateAuthCallback(bool allow_user) { 39 return base::Bind(&UserCanConnectCallback, allow_user); 40 } 41 42 class UnixDomainServerSocketTest : public testing::Test { 43 protected: 44 UnixDomainServerSocketTest() { 45 EXPECT_TRUE(temp_dir_.CreateUniqueTempDir()); 46 socket_path_ = temp_dir_.path().Append(kSocketFilename).value(); 47 } 48 49 base::ScopedTempDir temp_dir_; 50 std::string socket_path_; 51 }; 52 53 TEST_F(UnixDomainServerSocketTest, ListenWithInvalidPath) { 54 const bool kUseAbstractNamespace = false; 55 UnixDomainServerSocket server_socket(CreateAuthCallback(true), 56 kUseAbstractNamespace); 57 EXPECT_EQ(ERR_FILE_NOT_FOUND, 58 server_socket.ListenWithAddressAndPort(kInvalidSocketPath, 0, 1)); 59 } 60 61 TEST_F(UnixDomainServerSocketTest, ListenWithInvalidPathWithAbstractNamespace) { 62 const bool kUseAbstractNamespace = true; 63 UnixDomainServerSocket server_socket(CreateAuthCallback(true), 64 kUseAbstractNamespace); 65 #if defined(OS_ANDROID) || defined(OS_LINUX) 66 EXPECT_EQ(OK, 67 server_socket.ListenWithAddressAndPort(kInvalidSocketPath, 0, 1)); 68 #else 69 EXPECT_EQ(ERR_ADDRESS_INVALID, 70 server_socket.ListenWithAddressAndPort(kInvalidSocketPath, 0, 1)); 71 #endif 72 } 73 74 TEST_F(UnixDomainServerSocketTest, ListenAgainAfterFailureWithInvalidPath) { 75 const bool kUseAbstractNamespace = false; 76 UnixDomainServerSocket server_socket(CreateAuthCallback(true), 77 kUseAbstractNamespace); 78 EXPECT_EQ(ERR_FILE_NOT_FOUND, 79 server_socket.ListenWithAddressAndPort(kInvalidSocketPath, 0, 1)); 80 EXPECT_EQ(OK, server_socket.ListenWithAddressAndPort(socket_path_, 0, 1)); 81 } 82 83 TEST_F(UnixDomainServerSocketTest, AcceptWithForbiddenUser) { 84 const bool kUseAbstractNamespace = false; 85 86 UnixDomainServerSocket server_socket(CreateAuthCallback(false), 87 kUseAbstractNamespace); 88 EXPECT_EQ(OK, server_socket.ListenWithAddressAndPort(socket_path_, 0, 1)); 89 90 scoped_ptr<StreamSocket> accepted_socket; 91 TestCompletionCallback accept_callback; 92 EXPECT_EQ(ERR_IO_PENDING, 93 server_socket.Accept(&accepted_socket, accept_callback.callback())); 94 EXPECT_FALSE(accepted_socket); 95 96 UnixDomainClientSocket client_socket(socket_path_, kUseAbstractNamespace); 97 EXPECT_FALSE(client_socket.IsConnected()); 98 99 // Connect() will return OK before the server rejects the connection. 100 TestCompletionCallback connect_callback; 101 int rv = connect_callback.GetResult( 102 client_socket.Connect(connect_callback.callback())); 103 ASSERT_EQ(OK, rv); 104 105 // Try to read from the socket. 106 const int read_buffer_size = 10; 107 scoped_refptr<IOBuffer> read_buffer(new IOBuffer(read_buffer_size)); 108 TestCompletionCallback read_callback; 109 rv = read_callback.GetResult(client_socket.Read( 110 read_buffer.get(), read_buffer_size, read_callback.callback())); 111 112 // The server should have disconnected gracefully, without sending any data. 113 ASSERT_EQ(0, rv); 114 EXPECT_FALSE(client_socket.IsConnected()); 115 116 // The server socket should not have called |accept_callback| or modified 117 // |accepted_socket|. 118 EXPECT_FALSE(accept_callback.have_result()); 119 EXPECT_FALSE(accepted_socket); 120 } 121 122 // Normal cases including read/write are tested by UnixDomainClientSocketTest. 123 124 } // namespace 125 } // namespace net 126