1 /*
2 * Copyright (c) 2023-2025 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 "setpermdialogcap_fuzzer.h"
17
18 #include <string>
19 #include <thread>
20 #include <vector>
21
22 #undef private
23 #include "access_token.h"
24 #include "accesstoken_kit.h"
25 #include "accesstoken_manager_service.h"
26 #include "fuzzer/FuzzedDataProvider.h"
27 #include "iaccess_token_manager.h"
28 #include "nativetoken_kit.h"
29 #include "securec.h"
30 #include "token_setproc.h"
31
32 using namespace std;
33 using namespace OHOS::Security::AccessToken;
34
35 namespace OHOS {
GetNativeToken()36 void GetNativeToken()
37 {
38 uint64_t tokenId;
39 const char** perms = new (std::nothrow) const char *[1];
40 if (perms == nullptr) {
41 return;
42 }
43
44 perms[0] = "ohos.permission.DISABLE_PERMISSION_DIALOG"; // 3 means the third permission
45
46 NativeTokenInfoParams infoInstance = {
47 .dcapsNum = 0,
48 .permsNum = 1,
49 .aclsNum = 0,
50 .dcaps = nullptr,
51 .perms = perms,
52 .acls = nullptr,
53 .processName = "setpermdialogcap_fuzzer",
54 .aplStr = "system_core",
55 };
56
57 tokenId = GetAccessTokenId(&infoInstance);
58 SetSelfTokenID(tokenId);
59 AccessTokenKit::ReloadNativeTokenInfo();
60 delete[] perms;
61 }
62
SetPermDialogCapFuzzTest(const uint8_t * data,size_t size)63 bool SetPermDialogCapFuzzTest(const uint8_t* data, size_t size)
64 {
65 if ((data == nullptr) || (size == 0)) {
66 return false;
67 }
68
69 FuzzedDataProvider provider(data, size);
70 HapBaseInfoParcel baseInfoParcel;
71 baseInfoParcel.hapBaseInfo.userID = provider.ConsumeIntegral<int32_t>();
72 baseInfoParcel.hapBaseInfo.bundleName = provider.ConsumeRandomLengthString();
73 baseInfoParcel.hapBaseInfo.instIndex = provider.ConsumeIntegral<int32_t>();
74
75 MessageParcel datas;
76 datas.WriteInterfaceToken(IAccessTokenManager::GetDescriptor());
77 if (!datas.WriteParcelable(&baseInfoParcel)) {
78 return false;
79 }
80 uint32_t code = static_cast<uint32_t>(IAccessTokenManagerIpcCode::COMMAND_SET_PERM_DIALOG_CAP);
81
82 MessageParcel reply;
83 MessageOption option;
84
85 DelayedSingleton<AccessTokenManagerService>::GetInstance()->OnRemoteRequest(code, datas, reply, option);
86 return true;
87 }
88 }
89
LLVMFuzzerInitialize(int * argc,char *** argv)90 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
91 {
92 OHOS::GetNativeToken();
93 return 0;
94 }
95
96 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)97 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
98 {
99 /* Run your code on data */
100 OHOS::SetPermDialogCapFuzzTest(data, size);
101 return 0;
102 }
103