/*
* Copyright (C) 2018 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 <cstdio> // fclose
#include <fstream>
#include <memory>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include "TestHelpers.h"
#include "android-base/macros.h"
#include "androidfw/ApkAssets.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "idmap2/BinaryStreamVisitor.h"
#include "idmap2/CommandLineOptions.h"
#include "idmap2/Idmap.h"
using ::testing::IsNull;
using ::testing::NotNull;
namespace android::idmap2 {
TEST(IdmapTests, TestCanonicalIdmapPathFor) {
ASSERT_EQ(Idmap::CanonicalIdmapPathFor("/foo", "/vendor/overlay/bar.apk"),
"/foo/vendor@overlay@bar.apk@idmap");
}
TEST(IdmapTests, CreateIdmapHeaderFromBinaryStream) {
std::string raw(reinterpret_cast<const char*>(idmap_raw_data), idmap_raw_data_len);
std::istringstream stream(raw);
std::unique_ptr<const IdmapHeader> header = IdmapHeader::FromBinaryStream(stream);
ASSERT_THAT(header, NotNull());
ASSERT_EQ(header->GetMagic(), 0x504d4449U);
ASSERT_EQ(header->GetVersion(), 0x01U);
ASSERT_EQ(header->GetTargetCrc(), 0x1234U);
ASSERT_EQ(header->GetOverlayCrc(), 0x5678U);
ASSERT_EQ(header->GetTargetPath().to_string(), "target.apk");
ASSERT_EQ(header->GetOverlayPath().to_string(), "overlay.apk");
}
TEST(IdmapTests, FailToCreateIdmapHeaderFromBinaryStreamIfPathTooLong) {
std::string raw(reinterpret_cast<const char*>(idmap_raw_data), idmap_raw_data_len);
// overwrite the target path string, including the terminating null, with '.'
for (size_t i = 0x10; i < 0x110; i++) {
raw[i] = '.';
}
std::istringstream stream(raw);
std::unique_ptr<const IdmapHeader> header = IdmapHeader::FromBinaryStream(stream);
ASSERT_THAT(header, IsNull());
}
TEST(IdmapTests, CreateIdmapDataHeaderFromBinaryStream) {
const size_t offset = 0x210;
std::string raw(reinterpret_cast<const char*>(idmap_raw_data + offset),
idmap_raw_data_len - offset);
std::istringstream stream(raw);
std::unique_ptr<const IdmapData::Header> header = IdmapData::Header::FromBinaryStream(stream);
ASSERT_THAT(header, NotNull());
ASSERT_EQ(header->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(header->GetTypeCount(), 2U);
}
TEST(IdmapTests, CreateIdmapDataResourceTypeFromBinaryStream) {
const size_t offset = 0x214;
std::string raw(reinterpret_cast<const char*>(idmap_raw_data + offset),
idmap_raw_data_len - offset);
std::istringstream stream(raw);
std::unique_ptr<const IdmapData::TypeEntry> data = IdmapData::TypeEntry::FromBinaryStream(stream);
ASSERT_THAT(data, NotNull());
ASSERT_EQ(data->GetTargetTypeId(), 0x02U);
ASSERT_EQ(data->GetOverlayTypeId(), 0x02U);
ASSERT_EQ(data->GetEntryCount(), 1U);
ASSERT_EQ(data->GetEntryOffset(), 0U);
ASSERT_EQ(data->GetEntry(0), 0U);
}
TEST(IdmapTests, CreateIdmapDataFromBinaryStream) {
const size_t offset = 0x210;
std::string raw(reinterpret_cast<const char*>(idmap_raw_data + offset),
idmap_raw_data_len - offset);
std::istringstream stream(raw);
std::unique_ptr<const IdmapData> data = IdmapData::FromBinaryStream(stream);
ASSERT_THAT(data, NotNull());
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 2U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 2U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetEntryCount(), 1U);
ASSERT_EQ(types[0]->GetEntryOffset(), 0U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetTargetTypeId(), 0x03U);
ASSERT_EQ(types[1]->GetOverlayTypeId(), 0x03U);
ASSERT_EQ(types[1]->GetEntryCount(), 3U);
ASSERT_EQ(types[1]->GetEntryOffset(), 3U);
ASSERT_EQ(types[1]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetEntry(1), kNoEntry);
ASSERT_EQ(types[1]->GetEntry(2), 0x0001U);
}
TEST(IdmapTests, CreateIdmapFromBinaryStream) {
std::string raw(reinterpret_cast<const char*>(idmap_raw_data), idmap_raw_data_len);
std::istringstream stream(raw);
auto result = Idmap::FromBinaryStream(stream);
ASSERT_TRUE(result);
const auto idmap = std::move(*result);
ASSERT_THAT(idmap->GetHeader(), NotNull());
ASSERT_EQ(idmap->GetHeader()->GetMagic(), 0x504d4449U);
ASSERT_EQ(idmap->GetHeader()->GetVersion(), 0x01U);
ASSERT_EQ(idmap->GetHeader()->GetTargetCrc(), 0x1234U);
ASSERT_EQ(idmap->GetHeader()->GetOverlayCrc(), 0x5678U);
ASSERT_EQ(idmap->GetHeader()->GetTargetPath().to_string(), "target.apk");
ASSERT_EQ(idmap->GetHeader()->GetOverlayPath().to_string(), "overlay.apk");
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 2U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 2U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetEntryCount(), 1U);
ASSERT_EQ(types[0]->GetEntryOffset(), 0U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetTargetTypeId(), 0x03U);
ASSERT_EQ(types[1]->GetOverlayTypeId(), 0x03U);
ASSERT_EQ(types[1]->GetEntryCount(), 3U);
ASSERT_EQ(types[1]->GetEntryOffset(), 3U);
ASSERT_EQ(types[1]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetEntry(1), kNoEntry);
ASSERT_EQ(types[1]->GetEntry(2), 0x0001U);
}
TEST(IdmapTests, GracefullyFailToCreateIdmapFromCorruptBinaryStream) {
std::string raw(reinterpret_cast<const char*>(idmap_raw_data),
10); // data too small
std::istringstream stream(raw);
const auto result = Idmap::FromBinaryStream(stream);
ASSERT_FALSE(result);
}
void CreateIdmap(const StringPiece& target_apk_path, const StringPiece& overlay_apk_path,
const PolicyBitmask& fulfilled_policies, bool enforce_overlayable,
std::unique_ptr<const Idmap>* out_idmap) {
std::unique_ptr<const ApkAssets> target_apk = ApkAssets::Load(target_apk_path.to_string());
ASSERT_THAT(target_apk, NotNull());
std::unique_ptr<const ApkAssets> overlay_apk = ApkAssets::Load(overlay_apk_path.to_string());
ASSERT_THAT(overlay_apk, NotNull());
auto result =
Idmap::FromApkAssets(target_apk_path.to_string(), *target_apk, overlay_apk_path.to_string(),
*overlay_apk, fulfilled_policies, enforce_overlayable);
*out_idmap = result ? std::move(*result) : nullptr;
}
TEST(IdmapTests, CreateIdmapFromApkAssets) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target.apk";
std::string overlay_apk_path = GetTestDataPath() + "/overlay/overlay.apk";
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap->GetHeader(), NotNull());
ASSERT_EQ(idmap->GetHeader()->GetMagic(), 0x504d4449U);
ASSERT_EQ(idmap->GetHeader()->GetVersion(), 0x01U);
ASSERT_EQ(idmap->GetHeader()->GetTargetCrc(), 0x76a20829);
ASSERT_EQ(idmap->GetHeader()->GetOverlayCrc(), 0x8635c2ed);
ASSERT_EQ(idmap->GetHeader()->GetTargetPath().to_string(), target_apk_path);
ASSERT_EQ(idmap->GetHeader()->GetOverlayPath(), overlay_apk_path);
ASSERT_EQ(idmap->GetHeader()->GetOverlayPath(), overlay_apk_path);
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 2U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 2U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 1U);
ASSERT_EQ(types[0]->GetEntryOffset(), 0U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[1]->GetOverlayTypeId(), 0x02U);
ASSERT_EQ(types[1]->GetEntryCount(), 4U);
ASSERT_EQ(types[1]->GetEntryOffset(), 12U);
ASSERT_EQ(types[1]->GetEntry(0), 0x0000U);
ASSERT_EQ(types[1]->GetEntry(1), kNoEntry);
ASSERT_EQ(types[1]->GetEntry(2), 0x0001U);
ASSERT_EQ(types[1]->GetEntry(3), 0x0002U);
}
// Overlays should abide by all overlayable restrictions if enforcement of overlayable is enabled.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsPolicySystemPublic) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target.apk";
std::string overlay_apk_path = GetTestDataPath() + "/system-overlay/system-overlay.apk";
CreateIdmap(target_apk_path, overlay_apk_path,
PolicyFlags::POLICY_SYSTEM_PARTITION | PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 1U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 1U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 4U);
ASSERT_EQ(types[0]->GetEntryOffset(), 8U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U); // string/policy_public
ASSERT_EQ(types[0]->GetEntry(1), kNoEntry); // string/policy_signature
ASSERT_EQ(types[0]->GetEntry(2), 0x0001U); // string/policy_system
ASSERT_EQ(types[0]->GetEntry(3), 0x0002U); // string/policy_system_vendor
}
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsPolicySignature) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target.apk";
std::string overlay_apk_path = GetTestDataPath() + "/signature-overlay/signature-overlay.apk";
CreateIdmap(target_apk_path, overlay_apk_path,
PolicyFlags::POLICY_PUBLIC | PolicyFlags::POLICY_SIGNATURE,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 1U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 1U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 1U);
ASSERT_EQ(types[0]->GetEntryOffset(), 9U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U); // string/policy_signature
}
// Overlays should abide by all overlayable restrictions if enforcement of overlayable is enabled.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsPolicySystemPublicInvalid) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target.apk";
std::string overlay_apk_path =
GetTestDataPath() + "/system-overlay-invalid/system-overlay-invalid.apk";
CreateIdmap(target_apk_path, overlay_apk_path,
PolicyFlags::POLICY_SYSTEM_PARTITION | PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 1U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 1U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 4U);
ASSERT_EQ(types[0]->GetEntryOffset(), 8U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0005U); // string/policy_public
ASSERT_EQ(types[0]->GetEntry(1), kNoEntry); // string/policy_signature
ASSERT_EQ(types[0]->GetEntry(2), 0x0007U); // string/policy_system
ASSERT_EQ(types[0]->GetEntry(3), 0x0008U); // string/policy_system_vendor
}
// Overlays should ignore all overlayable restrictions if enforcement of overlayable is disabled.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsPolicySystemPublicInvalidIgnoreOverlayable) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target.apk";
std::string overlay_apk_path =
GetTestDataPath() + "/system-overlay-invalid/system-overlay-invalid.apk";
CreateIdmap(target_apk_path, overlay_apk_path,
PolicyFlags::POLICY_SYSTEM_PARTITION | PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ false, &idmap);
ASSERT_THAT(idmap, NotNull());
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 1U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 1U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 9U);
ASSERT_EQ(types[0]->GetEntryOffset(), 3U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U); // string/not_overlayable
ASSERT_EQ(types[0]->GetEntry(1), 0x0001U); // string/policy_odm
ASSERT_EQ(types[0]->GetEntry(2), 0x0002U); // string/policy_oem
ASSERT_EQ(types[0]->GetEntry(3), 0x0003U); // string/other
ASSERT_EQ(types[0]->GetEntry(4), 0x0004U); // string/policy_product
ASSERT_EQ(types[0]->GetEntry(5), 0x0005U); // string/policy_public
ASSERT_EQ(types[0]->GetEntry(6), 0x0006U); // string/policy_signature
ASSERT_EQ(types[0]->GetEntry(7), 0x0007U); // string/policy_system
ASSERT_EQ(types[0]->GetEntry(8), 0x0008U); // string/policy_system_vendor
}
// Overlays that do not specify a target <overlayable> can overlay resources defined as overlayable.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsNoDefinedOverlayableAndNoTargetName) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target-no-overlayable.apk";
std::string overlay_apk_path = GetTestDataPath() + "/overlay/overlay-no-name.apk";
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ false, &idmap);
ASSERT_THAT(idmap, NotNull());
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 2U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 2U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 1U);
ASSERT_EQ(types[0]->GetEntryOffset(), 0U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U); // string/int1
ASSERT_EQ(types[1]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[1]->GetOverlayTypeId(), 0x02U);
ASSERT_EQ(types[1]->GetEntryCount(), 4U);
ASSERT_EQ(types[1]->GetEntryOffset(), 12U);
ASSERT_EQ(types[1]->GetEntry(0), 0x0000U); // string/str1
ASSERT_EQ(types[1]->GetEntry(1), kNoEntry); // string/str2
ASSERT_EQ(types[1]->GetEntry(2), 0x0001U); // string/str3
ASSERT_EQ(types[1]->GetEntry(3), 0x0002U); // string/str4
}
// Overlays that are not pre-installed and are not signed with the same signature as the target
// cannot overlay packages that have not defined overlayable resources.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsDefaultPoliciesPublicFail) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target-no-overlayable.apk";
std::string overlay_apk_path = GetTestDataPath() + "/overlay/overlay-no-name.apk";
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, IsNull());
}
// Overlays that are pre-installed or are signed with the same signature as the target can overlay
// packages that have not defined overlayable resources.
TEST(IdmapOverlayableTests, CreateIdmapFromApkAssetsDefaultPolicies) {
std::unique_ptr<const Idmap> idmap;
std::string target_apk_path = GetTestDataPath() + "/target/target-no-overlayable.apk";
std::string overlay_apk_path =
GetTestDataPath() + "/system-overlay-invalid/system-overlay-invalid.apk";
auto CheckEntries = [&]() -> void {
const std::vector<std::unique_ptr<const IdmapData>>& dataBlocks = idmap->GetData();
ASSERT_EQ(dataBlocks.size(), 1U);
const std::unique_ptr<const IdmapData>& data = dataBlocks[0];
ASSERT_EQ(data->GetHeader()->GetTargetPackageId(), 0x7fU);
ASSERT_EQ(data->GetHeader()->GetTypeCount(), 1U);
const std::vector<std::unique_ptr<const IdmapData::TypeEntry>>& types = data->GetTypeEntries();
ASSERT_EQ(types.size(), 1U);
ASSERT_EQ(types[0]->GetTargetTypeId(), 0x02U);
ASSERT_EQ(types[0]->GetOverlayTypeId(), 0x01U);
ASSERT_EQ(types[0]->GetEntryCount(), 9U);
ASSERT_EQ(types[0]->GetEntryOffset(), 3U);
ASSERT_EQ(types[0]->GetEntry(0), 0x0000U); // string/not_overlayable
ASSERT_EQ(types[0]->GetEntry(1), 0x0001U); // string/policy_odm
ASSERT_EQ(types[0]->GetEntry(2), 0x0002U); // string/policy_oem
ASSERT_EQ(types[0]->GetEntry(3), 0x0003U); // string/other
ASSERT_EQ(types[0]->GetEntry(4), 0x0004U); // string/policy_product
ASSERT_EQ(types[0]->GetEntry(5), 0x0005U); // string/policy_public
ASSERT_EQ(types[0]->GetEntry(6), 0x0006U); // string/policy_signature
ASSERT_EQ(types[0]->GetEntry(7), 0x0007U); // string/policy_system
ASSERT_EQ(types[0]->GetEntry(8), 0x0008U); // string/policy_system_vendor
};
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_SIGNATURE,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_PRODUCT_PARTITION,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_SYSTEM_PARTITION,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_VENDOR_PARTITION,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_ODM_PARTITION,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
CreateIdmap(target_apk_path, overlay_apk_path, PolicyFlags::POLICY_OEM_PARTITION,
/* enforce_overlayable */ true, &idmap);
ASSERT_THAT(idmap, NotNull());
CheckEntries();
}
TEST(IdmapTests, FailToCreateIdmapFromApkAssetsIfPathTooLong) {
std::string target_apk_path(GetTestDataPath());
for (int i = 0; i < 32; i++) {
target_apk_path += "/target/../";
}
target_apk_path += "/target/target.apk";
ASSERT_GT(target_apk_path.size(), kIdmapStringLength);
std::unique_ptr<const ApkAssets> target_apk = ApkAssets::Load(target_apk_path);
ASSERT_THAT(target_apk, NotNull());
const std::string overlay_apk_path(GetTestDataPath() + "/overlay/overlay.apk");
std::unique_ptr<const ApkAssets> overlay_apk = ApkAssets::Load(overlay_apk_path);
ASSERT_THAT(overlay_apk, NotNull());
const auto result =
Idmap::FromApkAssets(target_apk_path, *target_apk, overlay_apk_path, *overlay_apk,
PolicyFlags::POLICY_PUBLIC, /* enforce_overlayable */ true);
ASSERT_FALSE(result);
}
TEST(IdmapTests, IdmapHeaderIsUpToDate) {
fclose(stderr); // silence expected warnings from libandroidfw
const std::string target_apk_path(GetTestDataPath() + "/target/target.apk");
std::unique_ptr<const ApkAssets> target_apk = ApkAssets::Load(target_apk_path);
ASSERT_THAT(target_apk, NotNull());
const std::string overlay_apk_path(GetTestDataPath() + "/overlay/overlay.apk");
std::unique_ptr<const ApkAssets> overlay_apk = ApkAssets::Load(overlay_apk_path);
ASSERT_THAT(overlay_apk, NotNull());
auto result = Idmap::FromApkAssets(target_apk_path, *target_apk, overlay_apk_path, *overlay_apk,
PolicyFlags::POLICY_PUBLIC,
/* enforce_overlayable */ true);
ASSERT_TRUE(result);
const auto idmap = std::move(*result);
std::stringstream stream;
BinaryStreamVisitor visitor(stream);
idmap->accept(&visitor);
std::unique_ptr<const IdmapHeader> header = IdmapHeader::FromBinaryStream(stream);
ASSERT_THAT(header, NotNull());
ASSERT_TRUE(header->IsUpToDate());
// magic: bytes (0x0, 0x03)
std::string bad_magic_string(stream.str());
bad_magic_string[0x0] = '.';
bad_magic_string[0x1] = '.';
bad_magic_string[0x2] = '.';
bad_magic_string[0x3] = '.';
std::stringstream bad_magic_stream(bad_magic_string);
std::unique_ptr<const IdmapHeader> bad_magic_header =
IdmapHeader::FromBinaryStream(bad_magic_stream);
ASSERT_THAT(bad_magic_header, NotNull());
ASSERT_NE(header->GetMagic(), bad_magic_header->GetMagic());
ASSERT_FALSE(bad_magic_header->IsUpToDate());
// version: bytes (0x4, 0x07)
std::string bad_version_string(stream.str());
bad_version_string[0x4] = '.';
bad_version_string[0x5] = '.';
bad_version_string[0x6] = '.';
bad_version_string[0x7] = '.';
std::stringstream bad_version_stream(bad_version_string);
std::unique_ptr<const IdmapHeader> bad_version_header =
IdmapHeader::FromBinaryStream(bad_version_stream);
ASSERT_THAT(bad_version_header, NotNull());
ASSERT_NE(header->GetVersion(), bad_version_header->GetVersion());
ASSERT_FALSE(bad_version_header->IsUpToDate());
// target crc: bytes (0x8, 0xb)
std::string bad_target_crc_string(stream.str());
bad_target_crc_string[0x8] = '.';
bad_target_crc_string[0x9] = '.';
bad_target_crc_string[0xa] = '.';
bad_target_crc_string[0xb] = '.';
std::stringstream bad_target_crc_stream(bad_target_crc_string);
std::unique_ptr<const IdmapHeader> bad_target_crc_header =
IdmapHeader::FromBinaryStream(bad_target_crc_stream);
ASSERT_THAT(bad_target_crc_header, NotNull());
ASSERT_NE(header->GetTargetCrc(), bad_target_crc_header->GetTargetCrc());
ASSERT_FALSE(bad_target_crc_header->IsUpToDate());
// overlay crc: bytes (0xc, 0xf)
std::string bad_overlay_crc_string(stream.str());
bad_overlay_crc_string[0xc] = '.';
bad_overlay_crc_string[0xd] = '.';
bad_overlay_crc_string[0xe] = '.';
bad_overlay_crc_string[0xf] = '.';
std::stringstream bad_overlay_crc_stream(bad_overlay_crc_string);
std::unique_ptr<const IdmapHeader> bad_overlay_crc_header =
IdmapHeader::FromBinaryStream(bad_overlay_crc_stream);
ASSERT_THAT(bad_overlay_crc_header, NotNull());
ASSERT_NE(header->GetOverlayCrc(), bad_overlay_crc_header->GetOverlayCrc());
ASSERT_FALSE(bad_overlay_crc_header->IsUpToDate());
// target path: bytes (0x10, 0x10f)
std::string bad_target_path_string(stream.str());
bad_target_path_string[0x10] = '\0';
std::stringstream bad_target_path_stream(bad_target_path_string);
std::unique_ptr<const IdmapHeader> bad_target_path_header =
IdmapHeader::FromBinaryStream(bad_target_path_stream);
ASSERT_THAT(bad_target_path_header, NotNull());
ASSERT_NE(header->GetTargetPath(), bad_target_path_header->GetTargetPath());
ASSERT_FALSE(bad_target_path_header->IsUpToDate());
// overlay path: bytes (0x110, 0x20f)
std::string bad_overlay_path_string(stream.str());
bad_overlay_path_string[0x110] = '\0';
std::stringstream bad_overlay_path_stream(bad_overlay_path_string);
std::unique_ptr<const IdmapHeader> bad_overlay_path_header =
IdmapHeader::FromBinaryStream(bad_overlay_path_stream);
ASSERT_THAT(bad_overlay_path_header, NotNull());
ASSERT_NE(header->GetOverlayPath(), bad_overlay_path_header->GetOverlayPath());
ASSERT_FALSE(bad_overlay_path_header->IsUpToDate());
}
class TestVisitor : public Visitor {
public:
explicit TestVisitor(std::ostream& stream) : stream_(stream) {
}
void visit(const Idmap& idmap ATTRIBUTE_UNUSED) override {
stream_ << "TestVisitor::visit(Idmap)" << std::endl;
}
void visit(const IdmapHeader& idmap ATTRIBUTE_UNUSED) override {
stream_ << "TestVisitor::visit(IdmapHeader)" << std::endl;
}
void visit(const IdmapData& idmap ATTRIBUTE_UNUSED) override {
stream_ << "TestVisitor::visit(IdmapData)" << std::endl;
}
void visit(const IdmapData::Header& idmap ATTRIBUTE_UNUSED) override {
stream_ << "TestVisitor::visit(IdmapData::Header)" << std::endl;
}
void visit(const IdmapData::TypeEntry& idmap ATTRIBUTE_UNUSED) override {
stream_ << "TestVisitor::visit(IdmapData::TypeEntry)" << std::endl;
}
private:
std::ostream& stream_;
};
TEST(IdmapTests, TestVisitor) {
std::string raw(reinterpret_cast<const char*>(idmap_raw_data), idmap_raw_data_len);
std::istringstream stream(raw);
const auto idmap = Idmap::FromBinaryStream(stream);
ASSERT_TRUE(idmap);
std::stringstream test_stream;
TestVisitor visitor(test_stream);
(*idmap)->accept(&visitor);
ASSERT_EQ(test_stream.str(),
"TestVisitor::visit(Idmap)\n"
"TestVisitor::visit(IdmapHeader)\n"
"TestVisitor::visit(IdmapData)\n"
"TestVisitor::visit(IdmapData::Header)\n"
"TestVisitor::visit(IdmapData::TypeEntry)\n"
"TestVisitor::visit(IdmapData::TypeEntry)\n");
}
} // namespace android::idmap2