1 /*
2 * Copyright (c) 2023 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 "deletetokenstub_fuzzer.h"
17
18 #include <sys/types.h>
19 #include <unistd.h>
20 #include <string>
21 #include <thread>
22 #include <vector>
23 #include "accesstoken_fuzzdata.h"
24 #undef private
25 #include "accesstoken_manager_service.h"
26 #include "i_accesstoken_manager.h"
27
28 using namespace std;
29 using namespace OHOS::Security::AccessToken;
30 const int CONSTANTS_NUMBER_TWO = 2;
31 static const int32_t ROOT_UID = 0;
32
33 namespace OHOS {
DeleteTokenStubFuzzTest(const uint8_t * data,size_t size)34 bool DeleteTokenStubFuzzTest(const uint8_t* data, size_t size)
35 {
36 if ((data == nullptr) || (size == 0)) {
37 return false;
38 }
39
40 AccessTokenFuzzData fuzzData(data, size);
41 AccessTokenID tokenId = fuzzData.GetData<AccessTokenID>();
42
43 MessageParcel datas;
44 datas.WriteInterfaceToken(IAccessTokenManager::GetDescriptor());
45 if (!datas.WriteUint32(tokenId)) {
46 return false;
47 }
48
49 uint32_t code = static_cast<uint32_t>(
50 AccessTokenInterfaceCode::TOKEN_DELETE);
51
52 MessageParcel reply;
53 MessageOption option;
54 bool enable = ((size % CONSTANTS_NUMBER_TWO) == 0);
55 if (enable) {
56 setuid(CONSTANTS_NUMBER_TWO);
57 }
58 DelayedSingleton<AccessTokenManagerService>::GetInstance()->OnRemoteRequest(code, datas, reply, option);
59 setuid(ROOT_UID);
60
61 return true;
62 }
63 } // namespace OHOS
64
65 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)66 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
67 {
68 /* Run your code on data */
69 OHOS::DeleteTokenStubFuzzTest(data, size);
70 return 0;
71 }
72