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 "delcredstub_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
DelCredStubFuzzTest(const uint8_t * data,size_t size)51 bool DelCredStubFuzzTest(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 uint64_t credentialId = fuzzData.GetData<uint64_t>();
59 std::vector<uint8_t> authToken = {fuzzData.GetData<uint8_t>()};
60 std::shared_ptr<IDMCallback> ptr = make_shared<MockIDMCallback>();
61 sptr<IIDMCallback> callback = new (std::nothrow) IDMCallbackService(userId, ptr);
62
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.WriteUint64(credentialId)) {
71 return false;
72 }
73 if (!dataTemp.WriteUInt8Vector(authToken)) {
74 return false;
75 }
76 if (!dataTemp.WriteRemoteObject(callback->AsObject())) {
77 return false;
78 }
79 MessageParcel reply;
80 MessageOption option;
81 uint32_t code = static_cast<uint32_t>(AccountIAMInterfaceCode::DEL_CRED);
82 auto iamAccountManagerService = std::make_shared<AccountIAMService>();
83 iamAccountManagerService->OnRemoteRequest(code, dataTemp, reply, option);
84
85 return true;
86 }
87 } // namespace OHOS
88
NativeTokenGet()89 void NativeTokenGet()
90 {
91 uint64_t tokenId;
92 const char **perms = new const char *[1];
93 perms[0] = "ohos.permission.MANAGE_USER_IDM";
94 NativeTokenInfoParams infoInstance = {
95 .dcapsNum = 0,
96 .permsNum = 1,
97 .aclsNum = 0,
98 .perms = perms,
99 .acls = nullptr,
100 .aplStr = "system_core",
101 };
102 infoInstance.processName = "DEL_CRED";
103 tokenId = GetAccessTokenId(&infoInstance);
104 SetSelfTokenID(tokenId);
105 AccessTokenKit::ReloadNativeTokenInfo();
106 delete [] perms;
107 }
108
109 /* Fuzzer entry point */
LLVMFuzzerInitialize(int * argc,char *** argv)110 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
111 {
112 NativeTokenGet();
113 return 0;
114 }
115
116 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)117 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
118 {
119 /* Run your code on data */
120 OHOS::DelCredStubFuzzTest(data, size);
121 return 0;
122 }
123