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 "addcredentialstub_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()
40 {
41 }
OnAcquireInfo(int32_t module,uint32_t acquireInfo,const Attributes & extraInfo)42 void OnAcquireInfo(int32_t module, uint32_t acquireInfo, const Attributes &extraInfo) override
43 {
44 return;
45 }
OnResult(int32_t result,const Attributes & extraInfo)46 void OnResult(int32_t result, const Attributes &extraInfo) override
47 {
48 return;
49 }
50 };
51
AddCredentialStubFuzzTest(const uint8_t * data,size_t size)52 bool AddCredentialStubFuzzTest(const uint8_t *data, size_t size)
53 {
54 if ((data == nullptr) || (size == 0)) {
55 return false;
56 }
57 FuzzData fuzzData(data, size);
58 int32_t userId = fuzzData.GetData<int32_t>();
59 AuthType authType = static_cast<AuthType>(fuzzData.GenerateEnmu(IAMAuthType::TYPE_END));
60 std::optional<PinSubType> pinType = {fuzzData.GenerateEnmu(PinSubType::PIN_MAX)};
61 std::vector<uint8_t> token = {fuzzData.GetData<uint8_t>()};
62 CredentialParameters credentialParameters = {
63 .authType = authType,
64 .pinType = pinType,
65 .token = token,
66 };
67 CredentialParametersIam credInfoIam;
68 credInfoIam.credentialParameters = credentialParameters;
69 std::shared_ptr<IDMCallback> ptr = make_shared<MockIDMCallback>();
70 sptr<IIDMCallback> callback = new (std::nothrow) IDMCallbackService(userId, ptr);
71
72 MessageParcel dataTemp;
73 if (!dataTemp.WriteInterfaceToken(IAMACCOUNT_TOKEN)) {
74 return false;
75 }
76 if (!dataTemp.WriteInt32(userId)) {
77 return false;
78 }
79 if (fuzzData.GenerateBool()) {
80 if (!dataTemp.WriteParcelable(&credInfoIam)) {
81 return false;
82 }
83 }
84 if (fuzzData.GenerateBool()) {
85 if (!dataTemp.WriteRemoteObject(callback->AsObject())) {
86 return false;
87 }
88 }
89 MessageParcel reply;
90 MessageOption option;
91 uint32_t code = static_cast<uint32_t>(IAccountIAMIpcCode::COMMAND_ADD_CREDENTIAL);
92 auto iamAccountManagerService = std::make_shared<AccountIAMService>();
93 iamAccountManagerService->OnRemoteRequest(code, dataTemp, reply, option);
94
95 return true;
96 }
97 } // namespace OHOS
98
NativeTokenGet()99 void NativeTokenGet()
100 {
101 uint64_t tokenId;
102 const char **perms = new const char *[1];
103 perms[0] = "ohos.permission.MANAGE_USER_IDM";
104 NativeTokenInfoParams infoInstance = {
105 .dcapsNum = 0,
106 .permsNum = 1,
107 .aclsNum = 0,
108 .perms = perms,
109 .acls = nullptr,
110 .aplStr = "system_core",
111 };
112 infoInstance.processName = "ADD_CREDENTIAL";
113 tokenId = GetAccessTokenId(&infoInstance);
114 SetSelfTokenID(tokenId);
115 AccessTokenKit::ReloadNativeTokenInfo();
116 delete [] perms;
117 }
118
119 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)120 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
121 {
122 NativeTokenGet();
123 return 0;
124 }
125
126 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)127 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
128 {
129 /* Run your code on data */
130 OHOS::AddCredentialStubFuzzTest(data, size);
131 return 0;
132 }
133