1 /*
2 * Copyright (C) 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "Weaver.h"
18 #include <array>
19
20 namespace aidl {
21 namespace android {
22 namespace hardware {
23 namespace weaver {
24
25 struct Slotinfo {
26 int slot_id;
27 std::vector<uint8_t> key;
28 std::vector<uint8_t> value;
29 };
30
31 std::array<struct Slotinfo, 16> slot_array;
32 // Methods from ::android::hardware::weaver::IWeaver follow.
33
getConfig(WeaverConfig * out_config)34 ::ndk::ScopedAStatus Weaver::getConfig(WeaverConfig* out_config) {
35 *out_config = {16, 16, 16};
36 return ::ndk::ScopedAStatus::ok();
37 }
38
read(int32_t in_slotId,const std::vector<uint8_t> & in_key,WeaverReadResponse * out_response)39 ::ndk::ScopedAStatus Weaver::read(int32_t in_slotId, const std::vector<uint8_t>& in_key, WeaverReadResponse* out_response) {
40 using ::aidl::android::hardware::weaver::WeaverReadStatus;
41
42 if (in_slotId > 15 || in_key.size() > 16) {
43 *out_response = {0, {}, WeaverReadStatus::FAILED};
44 return ndk::ScopedAStatus::ok();
45 }
46
47 if (slot_array[in_slotId].key != in_key) {
48 *out_response = {0, {}, WeaverReadStatus::INCORRECT_KEY};
49 return ndk::ScopedAStatus::ok();
50 }
51
52 *out_response = {0, slot_array[in_slotId].value, WeaverReadStatus::OK};
53
54 return ::ndk::ScopedAStatus::ok();
55 }
56
write(int32_t in_slotId,const std::vector<uint8_t> & in_key,const std::vector<uint8_t> & in_value)57 ::ndk::ScopedAStatus Weaver::write(int32_t in_slotId, const std::vector<uint8_t>& in_key, const std::vector<uint8_t>& in_value) {
58
59 if (in_slotId > 15 || in_key.size() > 16 || in_value.size() > 16)
60 return ::ndk::ScopedAStatus::fromStatus(STATUS_FAILED_TRANSACTION);
61
62 slot_array[in_slotId].key = in_key;
63 slot_array[in_slotId].value = in_value;
64
65 return ::ndk::ScopedAStatus::ok();
66 }
67
68 } //namespace weaver
69 } //namespace hardware
70 } //namespace android
71 } //namespace aidl
72