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 "cmgrantappcertificate_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(struct CmBlob) + sizeof(uint32_t) + sizeof(struct CmBlob);
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 struct CmBlob keyUri = { 0, nullptr };
35 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &keyUri)) {
36 CmFree(myData);
37 return false;
38 }
39
40 uint32_t appUid;
41 if (!GetUintFromBuffer(myData, &remainSize, &offset, &appUid)) {
42 CmFree(myData);
43 return false;
44 }
45
46 struct CmBlob authUri = { 0, nullptr };
47 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &authUri)) {
48 CmFree(myData);
49 return false;
50 }
51
52 SetATPermission();
53 (void)CmGrantAppCertificate(&keyUri, appUid, &authUri);
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