1 /*
2 * Copyright (C) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #ifndef LOG_TAG
16 #define LOG_TAG "bt_ipc_parcel_gatt_character"
17 #endif
18
19 #include "securec.h"
20 #include "bluetooth_bt_uuid.h"
21 #include "bluetooth_gatt_characteristic_parcel.h"
22 #include "bluetooth_gatt_descriptor_parcel.h"
23 #include "bluetooth_log.h"
24
25 namespace OHOS {
26 namespace Bluetooth {
27 const uint32_t GATT_CHARACTERISTIC_PARCEL_SIZE_MAX = 0x400;
Marshalling(Parcel & parcel) const28 bool BluetoothGattCharacteristic::Marshalling(Parcel &parcel) const
29 {
30 if (!parcel.WriteUint16(handle_)) {
31 return false;
32 }
33 if (!parcel.WriteUint16(endHandle_)) {
34 return false;
35 }
36 if (!parcel.WriteUint16(valueHandle_)) {
37 return false;
38 }
39 if (!parcel.WriteInt32(properties_)) {
40 return false;
41 }
42 if (!parcel.WriteInt32(permissions_)) {
43 return false;
44 }
45 if (!parcel.WriteUint32(length_)) {
46 return false;
47 }
48 for (size_t i = 0; i < length_; i++) {
49 if (!parcel.WriteUint8(value_[i])) {
50 return false;
51 }
52 }
53 BluetoothUuid uuid(uuid_);
54 if (!parcel.WriteParcelable(&uuid)) {
55 return false;
56 }
57 uint32_t size = descriptors_.size();
58 if (!parcel.WriteUint32(size)) {
59 return false;
60 }
61 for (auto &des : descriptors_) {
62 BluetoothGattDescriptor descriptor = BluetoothGattDescriptor(des);
63 if (!parcel.WriteParcelable(&descriptor)) {
64 return false;
65 }
66 }
67 return true;
68 }
69
Unmarshalling(Parcel & parcel)70 BluetoothGattCharacteristic *BluetoothGattCharacteristic::Unmarshalling(Parcel &parcel)
71 {
72 BluetoothGattCharacteristic *characteristic = new BluetoothGattCharacteristic();
73 if (characteristic != nullptr && !characteristic->ReadFromParcel(parcel)) {
74 delete characteristic;
75 characteristic = nullptr;
76 }
77 return characteristic;
78 }
79
WriteToParcel(Parcel & parcel)80 bool BluetoothGattCharacteristic::WriteToParcel(Parcel &parcel)
81 {
82 return Marshalling(parcel);
83 }
84
IsReadParcelDataSuccess(Parcel & parcel)85 bool BluetoothGattCharacteristic::IsReadParcelDataSuccess(Parcel &parcel)
86 {
87 if (!parcel.ReadUint16(handle_)) {
88 return false;
89 }
90 if (!parcel.ReadUint16(endHandle_)) {
91 return false;
92 }
93 if (!parcel.ReadUint16(valueHandle_)) {
94 return false;
95 }
96 if (!parcel.ReadInt32(properties_)) {
97 return false;
98 }
99 if (!parcel.ReadInt32(permissions_)) {
100 return false;
101 }
102 return true;
103 }
104
ReadFromParcel(Parcel & parcel)105 bool BluetoothGattCharacteristic::ReadFromParcel(Parcel &parcel)
106 {
107 if (!IsReadParcelDataSuccess(parcel)) {
108 HILOGE("read parcel data error");
109 return false;
110 }
111 uint32_t length = 0;
112 if (!parcel.ReadUint32(length) || length > GATT_CHARACTERISTIC_PARCEL_SIZE_MAX) {
113 HILOGE("read parcel length error, len=0x%{public}x", length);
114 return false;
115 }
116 length_ = length;
117 if (length > 0) {
118 uint8_t value[length_];
119 for (size_t i = 0; i < length_; i++) {
120 if (!parcel.ReadUint8(value[i])) {
121 return false;
122 }
123 }
124 value_ = std::make_unique<uint8_t[]>(length);
125 if (memcpy_s(value_.get(), length, value, length_) != EOK) {
126 HILOGE("BluetoothGattCharacteristic::ReadFromParcel error");
127 return false;
128 }
129 }
130 std::shared_ptr<BluetoothUuid> uuid(parcel.ReadParcelable<BluetoothUuid>());
131 if (!uuid) {
132 return false;
133 }
134 uuid_ = bluetooth::Uuid(*uuid);
135 uint32_t size;
136 if (!parcel.ReadUint32(size) || size > GATT_CHARACTERISTIC_PARCEL_SIZE_MAX) {
137 HILOGE("read parcel size error, size=0x%{public}x", size);
138 return false;
139 }
140 for (size_t i = 0; i < size; i++) {
141 std::shared_ptr<BluetoothGattDescriptor> descriptor(parcel.ReadParcelable<BluetoothGattDescriptor>());
142 if (!descriptor) {
143 return false;
144 }
145 descriptors_.push_back(*descriptor);
146 }
147 return true;
148 }
149 } // namespace Bluetooth
150 } // namespace OHOS
151