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