1/*
2**
3** Copyright 2017, 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#ifndef CONFIRMATIONUI_1_0_DEFAULT_PLATFORMSPECIFICS_H_
19#define CONFIRMATIONUI_1_0_DEFAULT_PLATFORMSPECIFICS_H_
20
21#include <stdint.h>
22#include <time.h>
23
24#include <android/hardware/confirmationui/1.0/IConfirmationResultCallback.h>
25#include <android/hardware/confirmationui/1.0/generic/GenericOperation.h>
26#include <android/hardware/confirmationui/support/confirmationui_utils.h>
27
28namespace android {
29namespace hardware {
30namespace confirmationui {
31namespace V1_0 {
32namespace implementation {
33
34struct MonotonicClockTimeStamper {
35    class TimeStamp {
36       public:
37        explicit TimeStamp(uint64_t ts) : timestamp_(ts), ok_(true) {}
38        TimeStamp() : timestamp_(0), ok_(false) {}
39        bool isOk() const { return ok_; }
40        operator const uint64_t() const { return timestamp_; }
41
42       private:
43        uint64_t timestamp_;
44        bool ok_;
45    };
46    static TimeStamp now();
47};
48
49class HMacImplementation {
50   public:
51    static support::NullOr<support::hmac_t> hmac256(
52        const support::auth_token_key_t& key,
53        std::initializer_list<support::ByteBufferProxy> buffers);
54};
55
56class MyOperation : public generic::Operation<sp<IConfirmationResultCallback>,
57                                              MonotonicClockTimeStamper, HMacImplementation> {
58   public:
59    static MyOperation& get() {
60        static MyOperation op;
61        return op;
62    }
63};
64
65}  // namespace implementation
66}  // namespace V1_0
67}  // namespace confirmationui
68}  // namespace hardware
69}  // namespace android
70
71#endif  // CONFIRMATIONUI_1_0_DEFAULT_PLATFORMSPECIFICS_H_
72