net/socket/unix_domain_server_socket_posix_unittest.cc

   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