1 /*
2 * Copyright (c) 2025 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 "setpermissionstatuswithpolicystub_fuzzer.h"
17
18 #include <vector>
19
20 #include "access_token.h"
21 #include "accesstoken_manager_service.h"
22 #include "fuzzer/FuzzedDataProvider.h"
23 #include "iaccess_token_manager.h"
24
25 using namespace std;
26 using namespace OHOS::Security::AccessToken;
27
28 const int CONSTANTS_NUMBER_ONE = 1;
29 const int CONSTANTS_NUMBER_TEN = 10;
30 const uint32_t MAX_PERMISSION_LIST_SIZE = 1024;
31 static const int32_t ROOT_UID = 0;
32
33 namespace OHOS {
SetPermissionStatusWithPolicyStubFuzzTest(const uint8_t * data,size_t size)34 bool SetPermissionStatusWithPolicyStubFuzzTest(const uint8_t* data, size_t size)
35 {
36 if ((data == nullptr) || (size == 0)) {
37 return false;
38 }
39
40 FuzzedDataProvider provider(data, size);
41 AccessTokenID tokenId = provider.ConsumeIntegral<AccessTokenID>();
42 uint32_t permListSize =
43 provider.ConsumeIntegralInRange<uint32_t>(CONSTANTS_NUMBER_ONE, MAX_PERMISSION_LIST_SIZE);
44 std::vector<std::string> permissionList;
45 for (size_t i = 0; i < permListSize; i++) {
46 std::string permission = provider.ConsumeRandomLengthString();
47 if (!permission.empty()) {
48 permissionList.push_back(permission);
49 }
50 }
51 uint32_t flag = static_cast<uint32_t>(TypePermissionFlag::PERMISSION_FIXED_BY_ADMIN_POLICY);
52 int32_t status = TypePermissionState::PERMISSION_DENIED;
53 MessageParcel datas;
54 if (!datas.WriteInterfaceToken(IAccessTokenManager::GetDescriptor())) {
55 return false;
56 }
57 if (!datas.WriteUint32(tokenId) || !datas.WriteStringVector(permissionList) ||
58 !datas.WriteUint32(status) || !datas.WriteInt32(flag)) {
59 return false;
60 }
61
62 uint32_t code = static_cast<uint32_t>(IAccessTokenManagerIpcCode::COMMAND_SET_PERMISSION_STATUS_WITH_POLICY);
63
64 MessageParcel reply;
65 MessageOption option;
66 if (((provider.ConsumeIntegral<int32_t>() % CONSTANTS_NUMBER_TEN) == 0)) {
67 setuid(CONSTANTS_NUMBER_TEN);
68 }
69 DelayedSingleton<AccessTokenManagerService>::GetInstance()->OnRemoteRequest(code, datas, reply, option);
70 setuid(ROOT_UID);
71 return true;
72 }
73 } // namespace OHOS
74
75 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)76 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
77 {
78 /* Run your code on data */
79 OHOS::SetPermissionStatusWithPolicyStubFuzzTest(data, size);
80 return 0;
81 }
82