1 /*
2 * Copyright (c) 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 "sethapwithfgreminderstub_fuzzer.h"
17
18 #include <string>
19 #include <thread>
20 #include <vector>
21
22 #include "accesstoken_fuzzdata.h"
23 #undef private
24 #include "accesstoken_kit.h"
25 #include "i_privacy_manager.h"
26 #include "privacy_manager_service.h"
27 #include "nativetoken_kit.h"
28 #include "token_setproc.h"
29
30 using namespace std;
31 using namespace OHOS::Security::AccessToken;
32 const int CONSTANTS_NUMBER_TWO = 2;
33 static const int32_t ROOT_UID = 0;
34
35 namespace OHOS {
36 const uint8_t *g_baseFuzzData = nullptr;
37 size_t g_baseFuzzSize = 0;
38 size_t g_baseFuzzPos = 0;
GetNativeToken()39 void GetNativeToken()
40 {
41 uint64_t tokenId;
42 const char **perms = new const char *[1];
43 perms[0] = "ohos.permission.SET_FOREGROUND_HAP_REMINDER"; // 3 means the third permission
44
45 NativeTokenInfoParams infoInstance = {
46 .dcapsNum = 0,
47 .permsNum = 1,
48 .aclsNum = 0,
49 .dcaps = nullptr,
50 .perms = perms,
51 .acls = nullptr,
52 .processName = "sethapwithfgreminderstub_fuzzer_test",
53 .aplStr = "system_core",
54 };
55
56 tokenId = GetAccessTokenId(&infoInstance);
57 SetSelfTokenID(tokenId);
58 AccessTokenKit::ReloadNativeTokenInfo();
59 delete[] perms;
60 }
61
SetHapWithFGReminderStubFuzzTest(const uint8_t* data, size_t size)62 bool SetHapWithFGReminderStubFuzzTest(const uint8_t* data, size_t size)
63 {
64 if ((data == nullptr) || (size == 0)) {
65 return false;
66 }
67 GetNativeToken();
68 AccessTokenFuzzData fuzzData(data, size);
69
70 if (size > sizeof(uint32_t) + sizeof(bool)) {
71 uint32_t tokenId = fuzzData.GetData<uint32_t>();
72 bool isAllowed = fuzzData.GenerateRandomBool();
73
74 MessageParcel datas;
75 datas.WriteInterfaceToken(IPrivacyManager::GetDescriptor());
76 if (!datas.WriteUint32(tokenId)) {
77 return false;
78 }
79 if (!datas.WriteBool(isAllowed)) {
80 return false;
81 }
82
83 uint32_t code = static_cast<uint32_t>(
84 PrivacyInterfaceCode::SET_HAP_WITH_FOREGROUND_REMINDER);
85
86 MessageParcel reply;
87 MessageOption option;
88 bool enable = ((size % CONSTANTS_NUMBER_TWO) == 0);
89 if (enable) {
90 setuid(CONSTANTS_NUMBER_TWO);
91 }
92 DelayedSingleton<PrivacyManagerService>::GetInstance()->OnRemoteRequest(code, datas, reply, option);
93 setuid(ROOT_UID);
94 }
95 return true;
96 }
97 } // namespace OHOS
98
99 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)100 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
101 {
102 /* Run your code on data */
103 OHOS::SetHapWithFGReminderStubFuzzTest(data, size);
104 return 0;
105 }
106