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 "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 "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()
41 {
42 }
OnAcquireInfo(int32_t module,uint32_t acquireInfo,const Attributes & extraInfo)43 void OnAcquireInfo(int32_t module, uint32_t acquireInfo, const Attributes &extraInfo) override
44 {
45 return;
46 }
OnResult(int32_t result,const Attributes & extraInfo)47 void OnResult(int32_t result, const Attributes &extraInfo) override
48 {
49 return;
50 }
51 };
52
AddCredentialStubFuzzTest(const uint8_t * data,size_t size)53 bool AddCredentialStubFuzzTest(const uint8_t *data, size_t size)
54 {
55 if ((data == nullptr) || (size == 0)) {
56 return false;
57 }
58 FuzzData fuzzData(data, size);
59 int32_t userId = fuzzData.GetData<int32_t>();
60 AuthType authType = static_cast<AuthType>(fuzzData.GenerateEnmu(IAMAuthType::TYPE_END));
61 std::optional<PinSubType> pinType = {fuzzData.GenerateEnmu(PinSubType::PIN_MAX)};
62 std::vector<uint8_t> token = {fuzzData.GetData<uint8_t>()};
63 std::shared_ptr<IDMCallback> ptr = make_shared<MockIDMCallback>();
64 sptr<IIDMCallback> callback = new (std::nothrow) IDMCallbackService(userId, ptr);
65
66 MessageParcel dataTemp;
67 if (!dataTemp.WriteInterfaceToken(IAMACCOUNT_TOKEN)) {
68 return false;
69 }
70 if (!dataTemp.WriteInt32(userId)) {
71 return false;
72 }
73 if (!dataTemp.WriteInt32(authType)) {
74 return false;
75 }
76 PinSubType pin = pinType.value_or(PinSubType::PIN_MAX);
77 if (!dataTemp.WriteInt32(pin)) {
78 return false;
79 }
80 if (!dataTemp.WriteUInt8Vector(token)) {
81 return false;
82 }
83 if (!dataTemp.WriteRemoteObject(callback->AsObject())) {
84 return false;
85 }
86 MessageParcel reply;
87 MessageOption option;
88 uint32_t code = static_cast<uint32_t>(AccountIAMInterfaceCode::ADD_CREDENTIAL);
89 auto iamAccountManagerService = std::make_shared<AccountIAMService>();
90 iamAccountManagerService->OnRemoteRequest(code, dataTemp, reply, option);
91
92 return true;
93 }
94 } // namespace OHOS
95
NativeTokenGet()96 void NativeTokenGet()
97 {
98 uint64_t tokenId;
99 const char **perms = new const char *[1];
100 perms[0] = "ohos.permission.MANAGE_USER_IDM";
101 NativeTokenInfoParams infoInstance = {
102 .dcapsNum = 0,
103 .permsNum = 1,
104 .aclsNum = 0,
105 .perms = perms,
106 .acls = nullptr,
107 .aplStr = "system_core",
108 };
109 infoInstance.processName = "ADD_CREDENTIAL";
110 tokenId = GetAccessTokenId(&infoInstance);
111 SetSelfTokenID(tokenId);
112 AccessTokenKit::ReloadNativeTokenInfo();
113 delete [] perms;
114 }
115
116 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)117 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
118 {
119 NativeTokenGet();
120 return 0;
121 }
122
123 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)124 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
125 {
126 /* Run your code on data */
127 OHOS::AddCredentialStubFuzzTest(data, size);
128 return 0;
129 }
130