1 /*
2 * Copyright (c) 2023-2025 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 "updatecredentialstub_fuzzer.h"
17
18 #include <string>
19 #include <vector>
20 #include "access_token.h"
21 #include "access_token_error.h"
22 #include "accesstoken_kit.h"
23 #include "account_iam_callback_service.h"
24 #include "account_iam_client.h"
25 #include "account_iam_service.h"
26 #include "account_log_wrapper.h"
27 #include "fuzz_data.h"
28 #include "nativetoken_kit.h"
29 #include "token_setproc.h"
30
31 using namespace std;
32 using namespace OHOS::AccountSA;
33 using namespace OHOS::Security::AccessToken;
34 namespace OHOS {
35 const std::u16string IAMACCOUNT_TOKEN = u"ohos.accountfwk.IAccountIAM";
36
37 class MockIDMCallback : public OHOS::AccountSA::IDMCallback {
38 public:
~MockIDMCallback()39 virtual ~MockIDMCallback() {}
OnAcquireInfo(int32_t module,uint32_t acquireInfo,const Attributes & extraInfo)40 void OnAcquireInfo(int32_t module, uint32_t acquireInfo, const Attributes &extraInfo) override
41 {
42 return;
43 }
OnResult(int32_t result,const Attributes & extraInfo)44 void OnResult(int32_t result, const Attributes &extraInfo) override
45 {
46 return;
47 }
48 };
49
UpdateCredentialStubFuzzTest(const uint8_t * data,size_t size)50 bool UpdateCredentialStubFuzzTest(const uint8_t *data, size_t size)
51 {
52 if ((data == nullptr) || (size == 0)) {
53 return false;
54 }
55 FuzzData fuzzData(data, size);
56 int32_t userId = fuzzData.GetData<int32_t>();
57 AuthType authType = static_cast<AuthType>(fuzzData.GenerateEnmu(IAMAuthType::TYPE_END));
58 std::optional<PinSubType> pinType = {fuzzData.GenerateEnmu(PinSubType::PIN_MAX)};
59 std::vector<uint8_t> token = {fuzzData.GetData<uint8_t>()};
60 CredentialParameters credentialParameters = {
61 .authType = authType,
62 .pinType = pinType,
63 .token = token,
64 };
65 CredentialParametersIam credInfoIam;
66 credInfoIam.credentialParameters = credentialParameters;
67 std::shared_ptr<IDMCallback> ptr = make_shared<MockIDMCallback>();
68 sptr<IIDMCallback> callback = new (std::nothrow) IDMCallbackService(userId, ptr);
69 MessageParcel dataTemp;
70 if (!dataTemp.WriteInterfaceToken(IAMACCOUNT_TOKEN)) {
71 return false;
72 }
73 if (!dataTemp.WriteInt32(userId)) {
74 return false;
75 }
76 if (fuzzData.GenerateBool()) {
77 if (!dataTemp.WriteParcelable(&credInfoIam)) {
78 return false;
79 }
80 }
81 if (fuzzData.GenerateBool()) {
82 if (!dataTemp.WriteRemoteObject(callback->AsObject())) {
83 return false;
84 }
85 }
86
87 MessageParcel reply;
88 MessageOption option;
89 uint32_t code = static_cast<uint32_t>(IAccountIAMIpcCode::COMMAND_UPDATE_CREDENTIAL);
90 auto iamAccountManagerService = std::make_shared<AccountIAMService>();
91 iamAccountManagerService->OnRemoteRequest(code, dataTemp, reply, option);
92
93 return true;
94 }
95 } // namespace OHOS
96
NativeTokenGet()97 void NativeTokenGet()
98 {
99 uint64_t tokenId;
100 const char **perms = new const char *[1];
101 perms[0] = "ohos.permission.MANAGE_USER_IDM";
102 NativeTokenInfoParams infoInstance = {
103 .dcapsNum = 0,
104 .permsNum = 1,
105 .aclsNum = 0,
106 .perms = perms,
107 .acls = nullptr,
108 .aplStr = "system_core",
109 };
110 infoInstance.processName = "UPDATE_CREDENTIAL";
111 tokenId = GetAccessTokenId(&infoInstance);
112 SetSelfTokenID(tokenId);
113 AccessTokenKit::ReloadNativeTokenInfo();
114 delete [] perms;
115 }
116
117 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)118 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
119 {
120 NativeTokenGet();
121 return 0;
122 }
123
124 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)125 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
126 {
127 /* Run your code on data */
128 OHOS::UpdateCredentialStubFuzzTest(data, size);
129 return 0;
130 }
131