| // Copyright 2014 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "syzygy/swapimport/swapimport_app.h" |
| |
| #include "base/file_util.h" |
| #include "gtest/gtest.h" |
| #include "syzygy/core/unittest_util.h" |
| #include "syzygy/pe/unittest_util.h" |
| |
| namespace swapimport { |
| |
| namespace { |
| |
| class TestSwapImportApp : public SwapImportApp { |
| public: |
| using SwapImportApp::import_name_; |
| using SwapImportApp::input_image_; |
| using SwapImportApp::output_image_; |
| using SwapImportApp::overwrite_; |
| using SwapImportApp::verbose_; |
| }; |
| |
| typedef common::Application<TestSwapImportApp> TestApp; |
| |
| class SwapImportAppTest : public testing::PELibUnitTest { |
| public: |
| typedef testing::PELibUnitTest Super; |
| |
| SwapImportAppTest() |
| : cmd_line_(base::FilePath(L"swapimport.exe")), |
| test_impl_(test_app_.implementation()) { |
| } |
| |
| void SetUp() { |
| Super::SetUp(); |
| |
| logging::SetMinLogLevel(logging::LOG_ERROR); |
| |
| // Setup the IO streams. |
| CreateTemporaryDir(&temp_dir_); |
| stdin_path_ = temp_dir_.Append(L"NUL"); |
| stdout_path_ = temp_dir_.Append(L"stdout.txt"); |
| stderr_path_ = temp_dir_.Append(L"stderr.txt"); |
| InitStreams(stdin_path_, stdout_path_, stderr_path_); |
| |
| ASSERT_NO_FATAL_FAILURE(ConfigureTestApp(&test_app_)); |
| |
| input_image_ = testing::GetOutputRelativePath(testing::kTestDllName); |
| output_image_ = temp_dir_.Append(testing::kTestDllName); |
| |
| input_image_64_ = testing::GetOutputRelativePath(testing::kTestDllName64); |
| output_image_64_ = temp_dir_.Append(testing::kTestDllName64); |
| } |
| |
| template <class PEFileType> |
| void ValidateFirstImport(const base::FilePath& image, |
| const char* import_name) { |
| PEFileType pe_file; |
| ASSERT_TRUE(pe_file.Init(image)); |
| |
| // Get the absolute address of the first import entry. |
| PEFileType::AbsoluteAddress iid_addr( |
| pe_file.nt_headers()->OptionalHeader.ImageBase + |
| pe_file.nt_headers()->OptionalHeader.DataDirectory[ |
| IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress); |
| |
| // Read the import entry. |
| IMAGE_IMPORT_DESCRIPTOR iid = {}; |
| ASSERT_TRUE(pe_file.ReadImage(iid_addr, &iid, sizeof(iid))); |
| |
| // Read the name of the import entry. |
| PEFileType::AbsoluteAddress name_addr( |
| pe_file.nt_headers()->OptionalHeader.ImageBase + iid.Name); |
| std::string name; |
| ASSERT_TRUE(pe_file.ReadImageString(name_addr, &name)); |
| ASSERT_EQ(0, base::strcasecmp(name.c_str(), import_name)); |
| } |
| |
| void ValidateImportsSwapped() { |
| ASSERT_NO_FATAL_FAILURE(ValidateFirstImport<pe::PEFile>(input_image_, |
| "export_dll.dll")); |
| ASSERT_NO_FATAL_FAILURE(ValidateFirstImport<pe::PEFile>(output_image_, |
| "kernel32.dll")); |
| } |
| |
| void ValidateImportsSwapped64() { |
| ASSERT_NO_FATAL_FAILURE(ValidateFirstImport<pe::PEFile64>(input_image_64_, |
| "user32.dll")); |
| ASSERT_NO_FATAL_FAILURE(ValidateFirstImport<pe::PEFile64>(output_image_64_, |
| "kernel32.dll")); |
| } |
| |
| // Points the application at the fixture's command-line and IO streams. |
| template<typename TestAppType> |
| void ConfigureTestApp(TestAppType* test_app) { |
| test_app->set_command_line(&cmd_line_); |
| test_app->set_in(in()); |
| test_app->set_out(out()); |
| test_app->set_err(err()); |
| } |
| |
| // Stashes the current log-level before each test instance and restores it |
| // after each test completes. |
| testing::ScopedLogLevelSaver log_level_saver; |
| |
| // @name The application under test. |
| // @{ |
| TestApp test_app_; |
| TestApp::Implementation& test_impl_; |
| base::FilePath temp_dir_; |
| base::FilePath stdin_path_; |
| base::FilePath stdout_path_; |
| base::FilePath stderr_path_; |
| // @} |
| |
| CommandLine cmd_line_; |
| base::FilePath input_image_; |
| base::FilePath output_image_; |
| base::FilePath input_image_64_; |
| base::FilePath output_image_64_; |
| }; |
| |
| } // namespace |
| |
| TEST_F(SwapImportAppTest, GetHelp) { |
| cmd_line_.AppendSwitch("help"); |
| EXPECT_FALSE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandLineFails) { |
| EXPECT_FALSE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandFailsNoInputImage) { |
| cmd_line_.AppendSwitchPath("output-image", input_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| EXPECT_FALSE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandFailsNoOutputImage) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| EXPECT_FALSE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandFailsNoImportName) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", input_image_); |
| EXPECT_FALSE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandMinimal) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", input_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| EXPECT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, ParseEmptyCommandMaximal) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", input_image_); |
| cmd_line_.AppendSwitch("overwrite"); |
| cmd_line_.AppendSwitch("verbose"); |
| cmd_line_.AppendArg("kernel32.dll"); |
| EXPECT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| } |
| |
| TEST_F(SwapImportAppTest, RunFailsInputAndOutputSame) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", input_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_NE(0, test_impl_.Run()); |
| } |
| |
| TEST_F(SwapImportAppTest, RunFailsOutputExists) { |
| base::WriteFile(output_image_, "a", 1); |
| |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_NE(0, test_impl_.Run()); |
| } |
| |
| TEST_F(SwapImportAppTest, RunFailsImportNameNotMatched) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_); |
| cmd_line_.AppendArg("nosuchimport.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_NE(0, test_impl_.Run()); |
| } |
| |
| TEST_F(SwapImportAppTest, RunSucceeds) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_EQ(0, test_impl_.Run()); |
| |
| ASSERT_NO_FATAL_FAILURE(ValidateImportsSwapped()); |
| } |
| |
| TEST_F(SwapImportAppTest, RunSucceedsOverwrite) { |
| base::WriteFile(output_image_, "a", 1); |
| |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_); |
| cmd_line_.AppendSwitch("overwrite"); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_EQ(0, test_impl_.Run()); |
| |
| ASSERT_NO_FATAL_FAILURE(ValidateImportsSwapped()); |
| } |
| |
| TEST_F(SwapImportAppTest, RunSucceeds64) { |
| cmd_line_.AppendSwitch("x64"); |
| cmd_line_.AppendSwitchPath("input-image", input_image_64_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_64_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_EQ(0, test_impl_.Run()); |
| |
| ASSERT_NO_FATAL_FAILURE(ValidateImportsSwapped64()); |
| } |
| |
| TEST_F(SwapImportAppTest, Run64On32BitBinaryFails) { |
| cmd_line_.AppendSwitch("x64"); |
| cmd_line_.AppendSwitchPath("input-image", input_image_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_NE(0, test_impl_.Run()); |
| EXPECT_FALSE(base::PathExists(output_image_)); |
| } |
| |
| TEST_F(SwapImportAppTest, Run32On64BitBinaryFails) { |
| cmd_line_.AppendSwitchPath("input-image", input_image_64_); |
| cmd_line_.AppendSwitchPath("output-image", output_image_64_); |
| cmd_line_.AppendArg("kernel32.dll"); |
| ASSERT_TRUE(test_impl_.ParseCommandLine(&cmd_line_)); |
| EXPECT_NE(0, test_impl_.Run()); |
| EXPECT_FALSE(base::PathExists(output_image_64_)); |
| } |
| |
| } // namespace swapimport |