1 /*
2 * Copyright (c) 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 "dm_auth_attest_common_fuzzer.h"
17
18 #include <fuzzer/FuzzedDataProvider.h>
19
20 #include "dm_auth_attest_common.h"
21
22 namespace OHOS {
23 namespace DistributedHardware {
24
DmAuthAttestCommonFuzzTest(const uint8_t * data,size_t size)25 void DmAuthAttestCommonFuzzTest(const uint8_t* data, size_t size)
26 {
27 if ((data == nullptr) || (size == 0)) {
28 return;
29 }
30 FuzzedDataProvider fdp(data, size);
31 DmCertChain* chain = new DmCertChain;
32 chain->cert = new DmBlob[1];
33 chain->certCount = 1;
34 int32_t maxLen = 65535;
35 chain->cert[0].size = size;
36 if (size > 0 && size <= maxLen) {
37 chain->cert[0].data = new uint8_t[size];
38 *chain->cert[0].data = fdp.ConsumeIntegral<uint8_t>();
39 }
40 std::string str_value = fdp.ConsumeRandomLengthString();
41 JsonItemObject jsonItem;
42 jsonItem.PushBack(str_value);
43 AuthAttestCommon::GetInstance().SerializeDmCertChain(nullptr);
44 AuthAttestCommon::GetInstance().SerializeDmCertChain(chain);
45 AuthAttestCommon::GetInstance().FreeDmCertChain(*chain);
46 }
47 }
48 }
49
50 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)51 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
52 {
53 /* Run your code on data */
54 OHOS::DistributedHardware::DmAuthAttestCommonFuzzTest(data, size);
55 return 0;
56 }
57