blob: 88a9c17692cb912d78230eae71ac56dee7c4c2e8 [file] [log] [blame]
//
// Copyright (C) 2015 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 "update_engine/aosp/boot_control_android.h"
#include <memory>
#include <utility>
#include <vector>
#include <android/hardware/boot/1.2/IBootControl.h>
#include <base/bind.h>
#include <base/logging.h>
#include <bootloader_message/bootloader_message.h>
#include <brillo/message_loops/message_loop.h>
#include "update_engine/aosp/dynamic_partition_control_android.h"
#include "update_engine/common/utils.h"
using std::string;
using android::hardware::Return;
using android::hardware::boot::V1_0::BoolResult;
using android::hardware::boot::V1_0::CommandResult;
using android::hardware::boot::V1_0::IBootControl;
using Slot = chromeos_update_engine::BootControlInterface::Slot;
namespace {
auto StoreResultCallback(CommandResult* dest) {
return [dest](const CommandResult& result) { *dest = result; };
}
} // namespace
namespace chromeos_update_engine {
namespace boot_control {
// Factory defined in boot_control.h.
std::unique_ptr<BootControlInterface> CreateBootControl() {
auto boot_control = std::make_unique<BootControlAndroid>();
if (!boot_control->Init()) {
return nullptr;
}
return std::move(boot_control);
}
} // namespace boot_control
bool BootControlAndroid::Init() {
module_ = IBootControl::getService();
if (module_ == nullptr) {
LOG(ERROR) << "Error getting bootctrl HIDL module.";
return false;
}
LOG(INFO) << "Loaded boot control hidl hal.";
dynamic_control_ =
std::make_unique<DynamicPartitionControlAndroid>(GetCurrentSlot());
return true;
}
unsigned int BootControlAndroid::GetNumSlots() const {
return module_->getNumberSlots();
}
BootControlInterface::Slot BootControlAndroid::GetCurrentSlot() const {
return module_->getCurrentSlot();
}
bool BootControlAndroid::GetPartitionDevice(const std::string& partition_name,
BootControlInterface::Slot slot,
bool not_in_payload,
std::string* device,
bool* is_dynamic) const {
return dynamic_control_->GetPartitionDevice(partition_name,
slot,
GetCurrentSlot(),
not_in_payload,
device,
is_dynamic);
}
bool BootControlAndroid::GetPartitionDevice(const string& partition_name,
BootControlInterface::Slot slot,
string* device) const {
return GetPartitionDevice(
partition_name, slot, false /* not_in_payload */, device, nullptr);
}
bool BootControlAndroid::IsSlotBootable(Slot slot) const {
Return<BoolResult> ret = module_->isSlotBootable(slot);
if (!ret.isOk()) {
LOG(ERROR) << "Unable to determine if slot " << SlotName(slot)
<< " is bootable: " << ret.description();
return false;
}
if (ret == BoolResult::INVALID_SLOT) {
LOG(ERROR) << "Invalid slot: " << SlotName(slot);
return false;
}
return ret == BoolResult::TRUE;
}
bool BootControlAndroid::MarkSlotUnbootable(Slot slot) {
CommandResult result;
auto ret = module_->setSlotAsUnbootable(slot, StoreResultCallback(&result));
if (!ret.isOk()) {
LOG(ERROR) << "Unable to call MarkSlotUnbootable for slot "
<< SlotName(slot) << ": " << ret.description();
return false;
}
if (!result.success) {
LOG(ERROR) << "Unable to mark slot " << SlotName(slot)
<< " as unbootable: " << result.errMsg.c_str();
}
return result.success;
}
bool BootControlAndroid::SetActiveBootSlot(Slot slot) {
CommandResult result;
auto ret = module_->setActiveBootSlot(slot, StoreResultCallback(&result));
if (!ret.isOk()) {
LOG(ERROR) << "Unable to call SetActiveBootSlot for slot " << SlotName(slot)
<< ": " << ret.description();
return false;
}
if (!result.success) {
LOG(ERROR) << "Unable to set the active slot to slot " << SlotName(slot)
<< ": " << result.errMsg.c_str();
}
return result.success;
}
bool BootControlAndroid::MarkBootSuccessfulAsync(
base::Callback<void(bool)> callback) {
CommandResult result;
auto ret = module_->markBootSuccessful(StoreResultCallback(&result));
if (!ret.isOk()) {
LOG(ERROR) << "Unable to call MarkBootSuccessful: " << ret.description();
return false;
}
if (!result.success) {
LOG(ERROR) << "Unable to mark boot successful: " << result.errMsg.c_str();
}
return brillo::MessageLoop::current()->PostTask(
FROM_HERE, base::Bind(callback, result.success)) !=
brillo::MessageLoop::kTaskIdNull;
}
bool BootControlAndroid::IsSlotMarkedSuccessful(
BootControlInterface::Slot slot) const {
Return<BoolResult> ret = module_->isSlotMarkedSuccessful(slot);
CommandResult result;
if (!ret.isOk()) {
LOG(ERROR) << "Unable to determine if slot " << SlotName(slot)
<< " is marked successful: " << ret.description();
return false;
}
if (ret == BoolResult::INVALID_SLOT) {
LOG(ERROR) << "Invalid slot: " << SlotName(slot);
return false;
}
return ret == BoolResult::TRUE;
}
Slot BootControlAndroid::GetActiveBootSlot() {
namespace V1_2 = android::hardware::boot::V1_2;
using android::sp;
sp<V1_2::IBootControl> v1_2_module = V1_2::IBootControl::castFrom(module_);
if (v1_2_module != nullptr) {
return v1_2_module->getActiveBootSlot();
}
LOG(WARNING) << "BootControl module version is lower than 1.2, "
<< __FUNCTION__ << " failed";
return kInvalidSlot;
}
DynamicPartitionControlInterface*
BootControlAndroid::GetDynamicPartitionControl() {
return dynamic_control_.get();
}
std::optional<PartitionDevice> BootControlAndroid::GetPartitionDevice(
const std::string& partition_name,
uint32_t slot,
uint32_t current_slot,
bool not_in_payload) const {
return dynamic_control_->GetPartitionDevice(
partition_name, slot, current_slot, not_in_payload);
}
} // namespace chromeos_update_engine