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 "cminstallappcert_fuzzer.h"
17
18 #include "cert_manager_api.h"
19 #include "cm_fuzz_test_common.h"
20
21 using namespace CmFuzzTest;
22 namespace OHOS {
23 static const uint32_t CMBLOB_PARAM_COUNT = 4;
24
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)25 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
26 {
27 uint32_t minSize = sizeof(struct CmBlob) * CMBLOB_PARAM_COUNT+ sizeof(uint32_t);
28 uint8_t *myData = nullptr;
29 if (!CopyMyData(data, size, minSize, &myData)) {
30 return false;
31 }
32
33 uint32_t remainSize = static_cast<uint32_t>(size);
34 uint32_t offset = 0;
35
36 struct CmBlob appCert = { 0, nullptr };
37 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &appCert)) {
38 CmFree(myData);
39 return false;
40 }
41
42 struct CmBlob appCertPwd = { 0, nullptr };
43 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &appCertPwd)) {
44 CmFree(myData);
45 return false;
46 }
47
48 struct CmBlob certAlias = { 0, nullptr };
49 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &certAlias)) {
50 CmFree(myData);
51 return false;
52 }
53
54 uint32_t store;
55 if (!GetUintFromBuffer(myData, &remainSize, &offset, &store)) {
56 CmFree(myData);
57 return false;
58 }
59
60 struct CmBlob keyUri = { 0, nullptr };
61 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &keyUri)) {
62 CmFree(myData);
63 return false;
64 }
65
66 SetATPermission();
67 (void)CmInstallAppCert(&appCert, &appCertPwd, &certAlias, store, &keyUri);
68
69 CmFree(myData);
70 return true;
71 }
72 }
73
74 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)75 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
76 {
77 /* Run your code on data */
78 OHOS::DoSomethingInterestingWithMyAPI(data, size);
79 return 0;
80 }
81