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 "cminstallusertrustedp7bcert_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 {
24 static const uint32_t CM_BLOB_NUM = 3;
25 static const uint32_t UINT32_NUM = 2;
26
DoSomethingInterestingWithMyAPI(const uint8_t * data,size_t size)27 bool DoSomethingInterestingWithMyAPI(const uint8_t* data, size_t size)
28 {
29 uint32_t minSize = CM_BLOB_NUM * sizeof(struct CmBlob) + sizeof(uint32_t) * UINT32_NUM;
30 uint8_t *myData = nullptr;
31 if (!CopyMyData(data, size, minSize, &myData)) {
32 return false;
33 }
34
35 uint32_t remainSize = static_cast<uint32_t>(size);
36 uint32_t offset = 0;
37 struct CmBlob userCert = { 0, nullptr };
38 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &userCert)) {
39 CmFree(myData);
40 return false;
41 }
42
43 struct CmBlob certAlias = { 0, nullptr };
44 if (!GetCmBlobFromBuffer(myData, &remainSize, &offset, &certAlias)) {
45 CmFree(myData);
46 return false;
47 }
48
49 uint32_t randomUserId = 0;
50 if (!GetUintFromBuffer(myData, &remainSize, &offset, &randomUserId)) {
51 CmFree(myData);
52 return false;
53 }
54 struct CmInstallCertInfo installCertInfo = {
55 .userCert = &userCert,
56 .certAlias = &certAlias,
57 .userId = randomUserId
58 };
59
60 uint32_t certCount = 0;
61 if (!GetUintFromBuffer(myData, &remainSize, &offset, &certCount)) {
62 CmFree(myData);
63 return false;
64 }
65
66 struct CertUriList certUriList = {
67 .certCount = certCount,
68 .uriList = nullptr
69 };
70
71 CertmanagerTest::MockHapToken mockHap;
72 (void)CmInstallUserTrustedP7BCert(&installCertInfo, true, &certUriList);
73
74 CM_FREE_PTR(certUriList.uriList);
75 CmFree(myData);
76 return true;
77 }
78 }
79
80 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)81 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
82 {
83 /* Run your code on data */
84 OHOS::DoSomethingInterestingWithMyAPI(data, size);
85 return 0;
86 }
87