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//
// Copyright (C) 2013 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.
//
#ifndef UPDATE_ENGINE_COMMON_FAKE_HARDWARE_H_
#define UPDATE_ENGINE_COMMON_FAKE_HARDWARE_H_
#include <map>
#include <string>
#include <utility>
#include <base/time/time.h>
#include "update_engine/common/error_code.h"
#include "update_engine/common/hardware_interface.h"
#include "update_engine/common/utils.h"
namespace chromeos_update_engine {
// Implements a fake hardware interface used for testing.
class FakeHardware : public HardwareInterface {
public:
// Value used to signal that the powerwash_count file is not present. When
// this value is used in SetPowerwashCount(), GetPowerwashCount() will return
// false.
static const int kPowerwashCountNotSet = -1;
// Default value for crossystem tpm_kernver.
static const int kMinKernelKeyVersion = 3;
// Default value for crossystem tpm_fwver.
static const int kMinFirmwareKeyVersion = 13;
// Default value for crossystem kernel_max_rollforward. This value is the
// default for consumer devices and effectively means "unlimited rollforward
// is allowed", which is the same as the behavior prior to implementing
// roll forward prevention.
static const int kKernelMaxRollforward = 0xfffffffe;
// Default value for crossystem firmware_max_rollforward. This value is the
// default for consumer devices and effectively means "unlimited rollforward
// is allowed", which is the same as the behavior prior to implementing
// roll forward prevention.
static const int kFirmwareMaxRollforward = 0xfffffffe;
FakeHardware() = default;
// HardwareInterface methods.
bool IsOfficialBuild() const override { return is_official_build_; }
bool IsNormalBootMode() const override { return is_normal_boot_mode_; }
bool AreDevFeaturesEnabled() const override {
return are_dev_features_enabled_;
}
bool IsOOBEEnabled() const override { return is_oobe_enabled_; }
bool IsOOBEComplete(base::Time* out_time_of_oobe) const override {
if (out_time_of_oobe != nullptr)
*out_time_of_oobe = oobe_timestamp_;
return is_oobe_complete_;
}
std::string GetHardwareClass() const override { return hardware_class_; }
std::string GetDeviceRequisition() const override {
return device_requisition_;
}
int GetMinKernelKeyVersion() const override {
return min_kernel_key_version_;
}
int GetMinFirmwareKeyVersion() const override {
return min_firmware_key_version_;
}
int GetMaxFirmwareKeyRollforward() const override {
return firmware_max_rollforward_;
}
bool SetMaxFirmwareKeyRollforward(int firmware_max_rollforward) override {
if (GetMaxFirmwareKeyRollforward() == -1)
return false;
firmware_max_rollforward_ = firmware_max_rollforward;
return true;
}
bool SetMaxKernelKeyRollforward(int kernel_max_rollforward) override {
kernel_max_rollforward_ = kernel_max_rollforward;
return true;
}
int GetPowerwashCount() const override { return powerwash_count_; }
bool SchedulePowerwash(bool save_rollback_data) override {
powerwash_scheduled_ = true;
save_rollback_data_ = save_rollback_data;
return true;
}
bool CancelPowerwash() override {
powerwash_scheduled_ = false;
save_rollback_data_ = false;
return true;
}
bool IsPowerwashScheduled() { return powerwash_scheduled_; }
bool GetNonVolatileDirectory(base::FilePath* path) const override {
return false;
}
bool GetPowerwashSafeDirectory(base::FilePath* path) const override {
return false;
}
int64_t GetBuildTimestamp() const override { return build_timestamp_; }
bool AllowDowngrade() const override { return false; }
bool GetFirstActiveOmahaPingSent() const override {
return first_active_omaha_ping_sent_;
}
bool SetFirstActiveOmahaPingSent() override {
first_active_omaha_ping_sent_ = true;
return true;
}
// Setters
void SetIsOfficialBuild(bool is_official_build) {
is_official_build_ = is_official_build;
}
void SetIsNormalBootMode(bool is_normal_boot_mode) {
is_normal_boot_mode_ = is_normal_boot_mode;
}
void SetAreDevFeaturesEnabled(bool are_dev_features_enabled) {
are_dev_features_enabled_ = are_dev_features_enabled;
}
// Sets the SetIsOOBEEnabled to |is_oobe_enabled|.
void SetIsOOBEEnabled(bool is_oobe_enabled) {
is_oobe_enabled_ = is_oobe_enabled;
}
// Sets the IsOOBEComplete to True with the given timestamp.
void SetIsOOBEComplete(base::Time oobe_timestamp) {
is_oobe_complete_ = true;
oobe_timestamp_ = oobe_timestamp;
}
void UnsetIsOOBEComplete() { is_oobe_complete_ = false; }
void SetHardwareClass(const std::string& hardware_class) {
hardware_class_ = hardware_class;
}
void SetDeviceRequisition(const std::string& requisition) {
device_requisition_ = requisition;
}
void SetMinKernelKeyVersion(int min_kernel_key_version) {
min_kernel_key_version_ = min_kernel_key_version;
}
void SetMinFirmwareKeyVersion(int min_firmware_key_version) {
min_firmware_key_version_ = min_firmware_key_version;
}
void SetPowerwashCount(int powerwash_count) {
powerwash_count_ = powerwash_count;
}
void SetBuildTimestamp(int64_t build_timestamp) {
build_timestamp_ = build_timestamp;
}
void SetWarmReset(bool warm_reset) override { warm_reset_ = warm_reset; }
void SetVbmetaDigestForInactiveSlot(bool reset) override {}
// Getters to verify state.
int GetMaxKernelKeyRollforward() const { return kernel_max_rollforward_; }
bool GetIsRollbackPowerwashScheduled() const {
return powerwash_scheduled_ && save_rollback_data_;
}
std::string GetVersionForLogging(
const std::string& partition_name) const override {
return partition_timestamps_[partition_name];
}
void SetVersion(const std::string& partition_name, std::string timestamp) {
partition_timestamps_[partition_name] = std::move(timestamp);
}
ErrorCode IsPartitionUpdateValid(
const std::string& partition_name,
const std::string& new_version) const override {
const auto old_version = GetVersionForLogging(partition_name);
return utils::IsTimestampNewer(old_version, new_version);
}
const char* GetPartitionMountOptions(
const std::string& partition_name) const override {
#ifdef __ANDROID__
// TODO(b/181182967): This matches the declaration in hardware_android.cc
// but ideally shouldn't be duplicated.
return "defcontext=u:object_r:postinstall_file:s0";
#else
return "";
#endif
}
private:
bool is_official_build_{true};
bool is_normal_boot_mode_{true};
bool are_dev_features_enabled_{false};
bool is_oobe_enabled_{true};
bool is_oobe_complete_{true};
// Jan 20, 2007
base::Time oobe_timestamp_{base::Time::FromTimeT(1169280000)};
std::string hardware_class_{"Fake HWID BLAH-1234"};
std::string device_requisition_{"fake_requisition"};
int min_kernel_key_version_{kMinKernelKeyVersion};
int min_firmware_key_version_{kMinFirmwareKeyVersion};
int kernel_max_rollforward_{kKernelMaxRollforward};
int firmware_max_rollforward_{kFirmwareMaxRollforward};
int powerwash_count_{kPowerwashCountNotSet};
bool powerwash_scheduled_{false};
bool save_rollback_data_{false};
int64_t build_timestamp_{0};
bool first_active_omaha_ping_sent_{false};
bool warm_reset_{false};
mutable std::map<std::string, std::string> partition_timestamps_;
DISALLOW_COPY_AND_ASSIGN(FakeHardware);
};
} // namespace chromeos_update_engine
#endif // UPDATE_ENGINE_COMMON_FAKE_HARDWARE_H_