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//
// Copyright (C) 2020 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/binder_service_stable_android.h"
#include <memory>
#include <base/bind.h>
#include <base/logging.h>
#include <binderwrapper/binder_wrapper.h>
#include <brillo/errors/error.h>
#include <utils/String8.h>
#include "update_engine/aosp/binder_service_android_common.h"
using android::binder::Status;
using android::os::IUpdateEngineStableCallback;
using android::os::ParcelFileDescriptor;
using std::string;
using std::vector;
using update_engine::UpdateEngineStatus;
namespace chromeos_update_engine {
BinderUpdateEngineAndroidStableService::BinderUpdateEngineAndroidStableService(
ServiceDelegateAndroidInterface* service_delegate)
: service_delegate_(service_delegate) {}
void BinderUpdateEngineAndroidStableService::SendStatusUpdate(
const UpdateEngineStatus& update_engine_status) {
last_status_ = static_cast<int>(update_engine_status.status);
last_progress_ = update_engine_status.progress;
if (callback_) {
callback_->onStatusUpdate(last_status_, last_progress_);
}
}
void BinderUpdateEngineAndroidStableService::SendPayloadApplicationComplete(
ErrorCode error_code) {
if (callback_) {
callback_->onPayloadApplicationComplete(static_cast<int>(error_code));
}
}
Status BinderUpdateEngineAndroidStableService::bind(
const android::sp<IUpdateEngineStableCallback>& callback,
bool* return_value) {
// Reject binding if another callback is already bound.
if (callback_ != nullptr) {
LOG(ERROR) << "Another callback is already bound. Can't bind new callback.";
*return_value = false;
return Status::ok();
}
// See BinderUpdateEngineAndroidService::bind.
if (last_status_ != -1) {
auto status = callback->onStatusUpdate(last_status_, last_progress_);
if (!status.isOk()) {
LOG(ERROR) << "Failed to call onStatusUpdate() from callback: "
<< status.toString8();
*return_value = false;
return Status::ok();
}
}
callback_ = callback;
const android::sp<IBinder>& callback_binder =
IUpdateEngineStableCallback::asBinder(callback);
auto binder_wrapper = android::BinderWrapper::Get();
binder_wrapper->RegisterForDeathNotifications(
callback_binder,
base::Bind(base::IgnoreResult(
&BinderUpdateEngineAndroidStableService::UnbindCallback),
base::Unretained(this),
base::Unretained(callback_binder.get())));
*return_value = true;
return Status::ok();
}
Status BinderUpdateEngineAndroidStableService::unbind(
const android::sp<IUpdateEngineStableCallback>& callback,
bool* return_value) {
const android::sp<IBinder>& callback_binder =
IUpdateEngineStableCallback::asBinder(callback);
auto binder_wrapper = android::BinderWrapper::Get();
binder_wrapper->UnregisterForDeathNotifications(callback_binder);
*return_value = UnbindCallback(callback_binder.get());
return Status::ok();
}
Status BinderUpdateEngineAndroidStableService::applyPayloadFd(
const ParcelFileDescriptor& pfd,
int64_t payload_offset,
int64_t payload_size,
const vector<android::String16>& header_kv_pairs) {
vector<string> str_headers = ToVecString(header_kv_pairs);
brillo::ErrorPtr error;
if (!service_delegate_->ApplyPayload(
pfd.get(), payload_offset, payload_size, str_headers, &error)) {
return ErrorPtrToStatus(error);
}
return Status::ok();
}
bool BinderUpdateEngineAndroidStableService::UnbindCallback(
const IBinder* callback) {
if (IUpdateEngineStableCallback::asBinder(callback_).get() != callback) {
LOG(ERROR) << "Unable to unbind unknown callback.";
return false;
}
callback_ = nullptr;
return true;
}
} // namespace chromeos_update_engine
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