1 /*
2  *
3  * Copyright 2019, The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #pragma once
19 
20 #include <secure_input/evdev.h>
21 #include <secure_input/secure_input_proto.h>
22 #include <stdint.h>
23 #include <teeui/utils.h>
24 
25 #include <functional>
26 #include <memory>
27 #include <tuple>
28 
29 namespace secure_input {
30 
31 class SecureInput {
32   public:
33     using KeyEvent = DTupKeyEvent;
34 
35     using HsBeginCb = std::function<std::tuple<teeui::ResponseCode, Nonce>()>;
36     using HsFinalizeCb = std::function<teeui::ResponseCode(const Signature&, const Nonce&)>;
37     using DeliverEventCb =
38         std::function<std::tuple<teeui::ResponseCode, secure_input::InputResponse>(
39             KeyEvent, const Signature&)>;
40     using InputResultCb = std::function<void(teeui::ResponseCode)>;
41 
~SecureInput()42     virtual ~SecureInput() {}
43 
44     virtual void handleEvent(const EventDev& evdev) = 0;
45     virtual operator bool() const = 0;
46     virtual void start() = 0;
47 };
48 
49 std::shared_ptr<SecureInput> createSecureInput(SecureInput::HsBeginCb hsBeginCb,
50                                                SecureInput::HsFinalizeCb hsFinalizeCb,
51                                                SecureInput::DeliverEventCb deliverEventCb,
52                                                SecureInput::InputResultCb inputResultCb);
53 
54 }  // namespace secure_input
55