1 /*
2 * Copyright (c) 2025-2025 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 "cmcallinggetappcertlist_fuzzer.h"
17
18 #include "cert_manager_api.h"
19 #include "cm_fuzz_test_common.h"
20 #include "cm_test_common.h"
21
22 using namespace CmFuzzTest;
23 namespace OHOS {
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)24 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
25 {
26 uint32_t minSize = sizeof(uint32_t) + sizeof(struct CredentialList);
27 uint8_t *myData = nullptr;
28 if (!CopyMyData(data, size, minSize, &myData)) {
29 return false;
30 }
31
32 uint32_t remainSize = static_cast<uint32_t>(size);
33 uint32_t offset = 0;
34
35 uint32_t credStore;
36 if (!GetUintFromBuffer(myData, &remainSize, &offset, &credStore)) {
37 CmFree(myData);
38 return false;
39 }
40
41 struct CredentialList credCertList = { 0, nullptr };
42 if (!GetUintFromBuffer(myData, &remainSize, &offset, &(credCertList.credentialCount))) {
43 CmFree(myData);
44 return false;
45 }
46 if (credCertList.credentialCount > (remainSize / sizeof(struct CredentialAbstract))) {
47 CmFree(myData);
48 return false;
49 }
50 credCertList.credentialAbstract = reinterpret_cast<struct CredentialAbstract *>(myData + offset);
51
52 CertmanagerTest::MockHapToken mockHap;
53 (void)CmCallingGetAppCertList(credStore, &credCertList);
54
55 CmFree(myData);
56 return true;
57 }
58 }
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
62 {
63 /* Run your code on data */
64 OHOS::DoSomethingInterestingWithMyAPI(data, size);
65 return 0;
66 }
67