1 /*
2 * Copyright (c) 2022-2025 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
16 #include "componentloader_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "component_loader.h"
22 #include "constants.h"
23 #include "distributed_hardware_errno.h"
24 #include "distributed_hardware_log.h"
25
26 namespace OHOS {
27 namespace DistributedHardware {
28 namespace {
29 const uint32_t DH_TYPE_SIZE = 10;
30 const DHType dhTypeFuzz[DH_TYPE_SIZE] = {
31 DHType::CAMERA, DHType::AUDIO, DHType::SCREEN, DHType::VIRMODEM_AUDIO,
32 DHType::INPUT, DHType::A2D, DHType::GPS, DHType::HFP
33 };
34 }
35
ComponentManagerFuzzTest(const uint8_t * data,size_t size)36 void ComponentManagerFuzzTest(const uint8_t* data, size_t size)
37 {
38 if ((data == nullptr) || (size == 0)) {
39 return;
40 }
41
42 ComponentLoader::GetInstance().Init();
43 DHType dhType = dhTypeFuzz[data[0] % DH_TYPE_SIZE];
44
45 IHardwareHandler *hardwareHandlerPtr = nullptr;
46 ComponentLoader::GetInstance().GetHardwareHandler(dhType, hardwareHandlerPtr);
47 IDistributedHardwareSource *sourcePtr = nullptr;
48 ComponentLoader::GetInstance().GetSource(dhType, sourcePtr);
49 IDistributedHardwareSink *sinkPtr = nullptr;
50 ComponentLoader::GetInstance().GetSink(dhType, sinkPtr);
51
52 ComponentLoader::GetInstance().ReleaseHardwareHandler(dhType);
53 ComponentLoader::GetInstance().ReleaseSource(dhType);
54 ComponentLoader::GetInstance().ReleaseSink(dhType);
55
56 ComponentLoader::GetInstance().GetHardwareHandler(dhType);
57 ComponentLoader::GetInstance().GetSource(dhType);
58 ComponentLoader::GetInstance().GetSink(dhType);
59 }
60 }
61 }
62
63 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)64 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
65 {
66 /* Run your code on data */
67 OHOS::DistributedHardware::ComponentManagerFuzzTest(data, size);
68 return 0;
69 }
70
71