1 /*
2 * Copyright (c) 2023-2024 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 "iaccount_iam.h"
29 #include "nativetoken_kit.h"
30 #include "token_setproc.h"
31
32 using namespace std;
33 using namespace OHOS::AccountSA;
34 using namespace OHOS::Security::AccessToken;
35 namespace OHOS {
36 const std::u16string IAMACCOUNT_TOKEN = u"ohos.accountfwk.IAccountIAM";
37
38 class MockIDMCallback : public OHOS::AccountSA::IDMCallback {
39 public:
~MockIDMCallback()40 virtual ~MockIDMCallback() {}
OnAcquireInfo(int32_t module,uint32_t acquireInfo,const Attributes & extraInfo)41 void OnAcquireInfo(int32_t module, uint32_t acquireInfo, const Attributes &extraInfo) override
42 {
43 return;
44 }
OnResult(int32_t result,const Attributes & extraInfo)45 void OnResult(int32_t result, const Attributes &extraInfo) override
46 {
47 return;
48 }
49 };
50
UpdateCredentialStubFuzzTest(const uint8_t * data,size_t size)51 bool UpdateCredentialStubFuzzTest(const uint8_t *data, size_t size)
52 {
53 if ((data == nullptr) || (size == 0)) {
54 return false;
55 }
56 FuzzData fuzzData(data, size);
57 int32_t userId = fuzzData.GetData<int32_t>();
58 AuthType authType = static_cast<AuthType>(fuzzData.GenerateEnmu(IAMAuthType::TYPE_END));
59 std::optional<PinSubType> pinType = {fuzzData.GenerateEnmu(PinSubType::PIN_MAX)};
60 std::vector<uint8_t> token = {fuzzData.GetData<uint8_t>()};
61 std::shared_ptr<IDMCallback> ptr = make_shared<MockIDMCallback>();
62 sptr<IIDMCallback> callback = new (std::nothrow) IDMCallbackService(userId, ptr);
63 MessageParcel dataTemp;
64 if (!dataTemp.WriteInterfaceToken(IAMACCOUNT_TOKEN)) {
65 return false;
66 }
67 if (!dataTemp.WriteInt32(userId)) {
68 return false;
69 }
70 if (!dataTemp.WriteInt32(authType)) {
71 return false;
72 }
73 PinSubType pin = pinType.value_or(PinSubType::PIN_MAX);
74 if (!dataTemp.WriteInt32(pin)) {
75 return false;
76 }
77 if (!dataTemp.WriteUInt8Vector(token)) {
78 return false;
79 }
80 if (!dataTemp.WriteRemoteObject(callback->AsObject())) {
81 return false;
82 }
83
84 MessageParcel reply;
85 MessageOption option;
86 uint32_t code = static_cast<uint32_t>(AccountIAMInterfaceCode::UPDATE_CREDENTIAL);
87 auto iamAccountManagerService = std::make_shared<AccountIAMService>();
88 iamAccountManagerService->OnRemoteRequest(code, dataTemp, reply, option);
89
90 return true;
91 }
92 } // namespace OHOS
93
NativeTokenGet()94 void NativeTokenGet()
95 {
96 uint64_t tokenId;
97 const char **perms = new const char *[1];
98 perms[0] = "ohos.permission.MANAGE_USER_IDM";
99 NativeTokenInfoParams infoInstance = {
100 .dcapsNum = 0,
101 .permsNum = 1,
102 .aclsNum = 0,
103 .perms = perms,
104 .acls = nullptr,
105 .aplStr = "system_core",
106 };
107 infoInstance.processName = "UPDATE_CREDENTIAL";
108 tokenId = GetAccessTokenId(&infoInstance);
109 SetSelfTokenID(tokenId);
110 AccessTokenKit::ReloadNativeTokenInfo();
111 delete [] perms;
112 }
113
114 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)115 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
116 {
117 NativeTokenGet();
118 return 0;
119 }
120
121 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)122 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
123 {
124 /* Run your code on data */
125 OHOS::UpdateCredentialStubFuzzTest(data, size);
126 return 0;
127 }
128