platform_system_core/trusty/confirmationui/TrustyConfirmationUI.h
Tri Vo abd86f8f98 trusty: Export ConfirmationUI helper classes
And fix namespaces.

Bug: 174402999
Test: m
Change-Id: I54dcc92d8c153d0fa2b10b2679a9a871699de8b1
2021-02-23 11:31:35 -08:00

104 lines
3.6 KiB
C++

/*
* Copyright 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.
*/
#ifndef ANDROID_HARDWARE_CONFIRMATIONUI_V1_0_TRUSTY_CONFIRMATIONUI_H
#define ANDROID_HARDWARE_CONFIRMATIONUI_V1_0_TRUSTY_CONFIRMATIONUI_H
#include <android/hardware/confirmationui/1.0/IConfirmationUI.h>
#include <android/hardware/keymaster/4.0/types.h>
#include <hidl/Status.h>
#include <atomic>
#include <condition_variable>
#include <memory>
#include <mutex>
#include <teeui/generic_messages.h>
#include <thread>
#include "TrustyApp.h"
namespace android {
namespace hardware {
namespace confirmationui {
namespace V1_0 {
namespace implementation {
using ::android::sp;
using ::android::hardware::hidl_array;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::trusty::confirmationui::TrustyApp;
class TrustyConfirmationUI : public IConfirmationUI {
public:
TrustyConfirmationUI();
virtual ~TrustyConfirmationUI();
// Methods from ::android::hardware::confirmationui::V1_0::IConfirmationUI
// follow.
Return<ResponseCode> promptUserConfirmation(const sp<IConfirmationResultCallback>& resultCB,
const hidl_string& promptText,
const hidl_vec<uint8_t>& extraData,
const hidl_string& locale,
const hidl_vec<UIOption>& uiOptions) override;
Return<ResponseCode> deliverSecureInputEvent(
const ::android::hardware::keymaster::V4_0::HardwareAuthToken& secureInputToken) override;
Return<void> abort() override;
private:
std::weak_ptr<TrustyApp> app_;
std::thread callback_thread_;
enum class ListenerState : uint32_t {
None,
Starting,
SetupDone,
Interactive,
Terminating,
};
/*
* listener_state is protected by listener_state_lock. It makes transitions between phases
* of the confirmation operation atomic.
* (See TrustyConfirmationUI.cpp#promptUserConfirmation_ for details about operation phases)
*/
ListenerState listener_state_;
/*
* abort_called_ is also protected by listener_state_lock_ and indicates that the HAL user
* called abort.
*/
bool abort_called_;
std::mutex listener_state_lock_;
std::condition_variable listener_state_condv_;
ResponseCode prompt_result_;
bool secureInputDelivered_;
std::tuple<teeui::ResponseCode, teeui::MsgVector<uint8_t>, teeui::MsgVector<uint8_t>>
promptUserConfirmation_(const teeui::MsgString& promptText,
const teeui::MsgVector<uint8_t>& extraData,
const teeui::MsgString& locale,
const teeui::MsgVector<teeui::UIOption>& uiOptions);
};
} // namespace implementation
} // namespace V1_0
} // namespace confirmationui
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_CONFIRMATIONUI_V1_0_TRUSTY_CONFIRMATIONUI_H