| // |
| // Copyright (C) 2019 The Android Open Source Project |
| // |
| // 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 <stdlib.h> |
| #include <string.h> |
| #include <sys/mount.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <chrono> |
| #include <iostream> |
| #include <thread> |
| |
| #include <android-base/file.h> |
| #include <android-base/properties.h> |
| #include <android-base/strings.h> |
| #include <android-base/unique_fd.h> |
| #include <ext4_utils/ext4_utils.h> |
| #include <fs_mgr/file_wait.h> |
| #include <gtest/gtest.h> |
| #include <libdm/dm.h> |
| #include <libfiemap/image_manager.h> |
| |
| #include "utility.h" |
| |
| using namespace android::dm; |
| using namespace std::literals; |
| using android::base::unique_fd; |
| using android::fiemap::ImageManager; |
| using android::fiemap::IsSubdir; |
| using android::fs_mgr::BlockDeviceInfo; |
| using android::fs_mgr::PartitionOpener; |
| using android::fs_mgr::WaitForFile; |
| |
| static std::string gDataPath; |
| static std::string gDataMountPath; |
| static constexpr char kMetadataPath[] = "/metadata/gsi/test"; |
| |
| static constexpr uint64_t kTestImageSize = 1024 * 1024; |
| |
| class TestPartitionOpener final : public PartitionOpener { |
| public: |
| android::base::unique_fd Open(const std::string& partition_name, int flags) const override { |
| return PartitionOpener::Open(GetPathForBlockDeviceName(partition_name), flags); |
| } |
| bool GetInfo(const std::string& partition_name, BlockDeviceInfo* info) const override { |
| return PartitionOpener::GetInfo(GetPathForBlockDeviceName(partition_name), info); |
| } |
| std::string GetDeviceString(const std::string& partition_name) const override { |
| return PartitionOpener::GetDeviceString(GetPathForBlockDeviceName(partition_name)); |
| } |
| |
| private: |
| static std::string GetPathForBlockDeviceName(const std::string& name) { |
| if (android::base::StartsWith(name, "loop") || android::base::StartsWith(name, "dm-")) { |
| return "/dev/block/"s + name; |
| } |
| return name; |
| } |
| }; |
| |
| // This fixture is for tests against the device's native configuration. |
| class NativeTest : public ::testing::Test { |
| protected: |
| void SetUp() override { |
| manager_ = ImageManager::Open(kMetadataPath, gDataPath); |
| ASSERT_NE(manager_, nullptr); |
| |
| manager_->set_partition_opener(std::make_unique<TestPartitionOpener>()); |
| |
| const ::testing::TestInfo* tinfo = ::testing::UnitTest::GetInstance()->current_test_info(); |
| base_name_ = tinfo->name(); |
| } |
| |
| void TearDown() override { |
| manager_->UnmapImageDevice(base_name_); |
| manager_->DeleteBackingImage(base_name_); |
| } |
| |
| std::string PropertyName() { return "gsid.mapped_image." + base_name_; } |
| |
| std::unique_ptr<ImageManager> manager_; |
| std::string base_name_; |
| }; |
| |
| TEST_F(NativeTest, CreateAndMap) { |
| ASSERT_TRUE(manager_->CreateBackingImage(base_name_, kTestImageSize, false, nullptr)); |
| |
| std::string path; |
| ASSERT_TRUE(manager_->MapImageDevice(base_name_, 5s, &path)); |
| ASSERT_TRUE(manager_->IsImageMapped(base_name_)); |
| ASSERT_EQ(android::base::GetProperty(PropertyName(), ""), path); |
| |
| { |
| unique_fd fd(open(path.c_str(), O_RDWR | O_NOFOLLOW | O_CLOEXEC)); |
| ASSERT_GE(fd, 0); |
| ASSERT_EQ(get_block_device_size(fd), kTestImageSize); |
| } |
| |
| ASSERT_TRUE(manager_->UnmapImageDevice(base_name_)); |
| ASSERT_FALSE(manager_->IsImageMapped(base_name_)); |
| ASSERT_EQ(android::base::GetProperty(PropertyName(), ""), ""); |
| } |
| |
| TEST_F(NativeTest, DisableImage) { |
| ASSERT_TRUE(manager_->CreateBackingImage(base_name_, kTestImageSize, false, nullptr)); |
| ASSERT_TRUE(manager_->BackingImageExists(base_name_)); |
| ASSERT_TRUE(manager_->DisableImage(base_name_)); |
| ASSERT_TRUE(manager_->IsImageDisabled(base_name_)); |
| ASSERT_TRUE(manager_->RemoveDisabledImages()); |
| ASSERT_TRUE(!manager_->BackingImageExists(base_name_)); |
| } |
| |
| TEST_F(NativeTest, GetMappedImageDevice) { |
| ASSERT_TRUE(manager_->CreateBackingImage(base_name_, kTestImageSize, false, nullptr)); |
| |
| std::string path1, path2; |
| ASSERT_TRUE(manager_->MapImageDevice(base_name_, 5s, &path1)); |
| ASSERT_TRUE(manager_->GetMappedImageDevice(base_name_, &path2)); |
| EXPECT_EQ(path1, path2); |
| |
| ASSERT_TRUE(manager_->UnmapImageDevice(base_name_)); |
| } |
| |
| namespace { |
| |
| struct IsSubdirTestParam { |
| std::string child; |
| std::string parent; |
| bool result; |
| }; |
| |
| class IsSubdirTest : public ::testing::TestWithParam<IsSubdirTestParam> {}; |
| |
| TEST_P(IsSubdirTest, Test) { |
| const auto& param = GetParam(); |
| EXPECT_EQ(param.result, IsSubdir(param.child, param.parent)) |
| << "IsSubdir(child=\"" << param.child << "\", parent=\"" << param.parent |
| << "\") != " << (param.result ? "true" : "false"); |
| } |
| |
| std::vector<IsSubdirTestParam> IsSubdirTestValues() { |
| // clang-format off |
| std::vector<IsSubdirTestParam> base_cases{ |
| {"/foo/bar", "/foo", true}, |
| {"/foo/bar/baz", "/foo", true}, |
| {"/foo", "/foo", true}, |
| {"/foo", "/", true}, |
| {"/", "/", true}, |
| {"/foo", "/foo/bar", false}, |
| {"/foo", "/bar", false}, |
| {"/foo-bar", "/foo", false}, |
| {"/", "/foo", false}, |
| }; |
| // clang-format on |
| std::vector<IsSubdirTestParam> ret; |
| for (const auto& e : base_cases) { |
| ret.push_back(e); |
| ret.push_back({e.child + "/", e.parent, e.result}); |
| ret.push_back({e.child, e.parent + "/", e.result}); |
| ret.push_back({e.child + "/", e.parent + "/", e.result}); |
| } |
| return ret; |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(IsSubdirTest, IsSubdirTest, ::testing::ValuesIn(IsSubdirTestValues())); |
| |
| } // namespace |
| |
| bool Mkdir(const std::string& path) { |
| if (mkdir(path.c_str(), 0700) && errno != EEXIST) { |
| std::cerr << "Could not mkdir " << path << ": " << strerror(errno) << std::endl; |
| return false; |
| } |
| return true; |
| } |
| |
| int main(int argc, char** argv) { |
| ::testing::InitGoogleTest(&argc, argv); |
| |
| if (argc >= 2) { |
| gDataPath = argv[1]; |
| } else { |
| gDataPath = "/data/gsi/test"; |
| } |
| gDataMountPath = gDataPath + "/mnt"s; |
| |
| if (!Mkdir(gDataPath) || !Mkdir(kMetadataPath) || !Mkdir(gDataMountPath) || |
| !Mkdir(kMetadataPath + "/mnt"s)) { |
| return 1; |
| } |
| return RUN_ALL_TESTS(); |
| } |