1 /*
2 * Copyright (c) 2022-2023 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 "cmgetappcertlist_fuzzer.h"
17
18 #include "cert_manager_api.h"
19 #include "cm_fuzz_test_common.h"
20
21 using namespace CmFuzzTest;
22 namespace OHOS {
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)23 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
24 {
25 uint32_t minSize = sizeof(uint32_t) + sizeof(struct CredentialList);
26 uint8_t *myData = nullptr;
27 if (!CopyMyData(data, size, minSize, &myData)) {
28 return false;
29 }
30
31 uint32_t remainSize = static_cast<uint32_t>(size);
32 uint32_t offset = 0;
33
34 uint32_t credStore;
35 if (!GetUintFromBuffer(myData, &remainSize, &offset, &credStore)) {
36 CmFree(myData);
37 return false;
38 }
39
40 struct CredentialList credCertList = { 0, nullptr };
41 if (!GetUintFromBuffer(myData, &remainSize, &offset, &(credCertList.credentialCount))) {
42 CmFree(myData);
43 return false;
44 }
45 if (credCertList.credentialCount > (remainSize / sizeof(struct CredentialAbstract))) {
46 CmFree(myData);
47 return false;
48 }
49 credCertList.credentialAbstract = reinterpret_cast<struct CredentialAbstract *>(myData + offset);
50
51 SetATPermission();
52 (void)CmGetAppCertList(credStore, &credCertList);
53
54 CmFree(myData);
55 return true;
56 }
57 }
58
59 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)60 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
61 {
62 /* Run your code on data */
63 OHOS::DoSomethingInterestingWithMyAPI(data, size);
64 return 0;
65 }
66