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 "abilityinterfacesappmgrnativechildnotifystub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "native_child_notify_stub.h"
24 #include "native_child_notify_interface.h"
25 #undef protected
26 #undef private
27
28 #include "securec.h"
29 #include "parcel.h"
30 #include "ability_record.h"
31
32 using namespace OHOS::AAFwk;
33 using namespace OHOS::AppExecFwk;
34
35 namespace OHOS {
36 namespace {
37 constexpr int INPUT_ZERO = 0;
38 constexpr int INPUT_ONE = 1;
39 constexpr int INPUT_TWO = 2;
40 constexpr int INPUT_THREE = 3;
41 constexpr size_t U32_AT_SIZE = 4;
42 constexpr size_t OFFSET_ZERO = 24;
43 constexpr size_t OFFSET_ONE = 16;
44 constexpr size_t OFFSET_TWO = 8;
45 constexpr uint8_t ENABLE = 2;
46 }
47 const std::u16string NATIVE_CHILD_NOTIFY_TOKEN = u"ohos.appexecfwk.NativeChildNotify";
GetU32Data(const char * ptr)48 uint32_t GetU32Data(const char* ptr)
49 {
50 // convert fuzz input data to an integer
51 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
52 ptr[INPUT_THREE];
53 }
54
55 class NativeChildNotifyStubFUZZ : public NativeChildNotifyStub {
56 public:
NativeChildNotifyStubFUZZ()57 explicit NativeChildNotifyStubFUZZ() {};
~NativeChildNotifyStubFUZZ()58 virtual ~ NativeChildNotifyStubFUZZ() {};
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)59 int OnRemoteRequest(
60 uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option) override{ return 0; };
OnNativeChildStarted(const sptr<IRemoteObject> & nativeChild)61 void OnNativeChildStarted(const sptr<IRemoteObject> &nativeChild) override{};
OnError(int32_t errCode)62 void OnError(int32_t errCode) override{};
63 };
64
GetFuzzAbilityToken()65 sptr<Token> GetFuzzAbilityToken()
66 {
67 sptr<Token> token = nullptr;
68 AbilityRequest abilityRequest;
69 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
70 abilityRequest.abilityInfo.name = "MainAbility";
71 abilityRequest.abilityInfo.type = AbilityType::DATA;
72 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
73 if (abilityRecord) {
74 token = abilityRecord->GetToken();
75 }
76 return token;
77 }
78
DoSomethingInterestingWithMyAPI(const char * data,size_t size)79 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
80 {
81 uint32_t code = static_cast<uint32_t>(INativeChildNotify::IPC_ID_ON_NATIVE_CHILD_STARTED);
82 MessageParcel parcel;
83 parcel.WriteInterfaceToken(NATIVE_CHILD_NOTIFY_TOKEN);
84 parcel.WriteBuffer(data, size);
85 parcel.RewindRead(0);
86 MessageParcel reply;
87 MessageOption option;
88 std::shared_ptr<NativeChildNotifyStubFUZZ> abms = std::make_shared<NativeChildNotifyStubFUZZ>();
89 abms->OnRemoteRequest(code, parcel, reply, option);
90 code = static_cast<uint32_t>(INativeChildNotify::IPC_ID_ON_ERROR);
91 abms->OnRemoteRequest(code, parcel, reply, option);
92 return true;
93 }
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 if (data == nullptr) {
101 std::cout << "invalid data" << std::endl;
102 return 0;
103 }
104
105 /* Validate the length of size */
106 if (size < OHOS::U32_AT_SIZE) {
107 return 0;
108 }
109
110 char* ch = static_cast<char*>(malloc(size + 1));
111 if (ch == nullptr) {
112 std::cout << "malloc failed." << std::endl;
113 return 0;
114 }
115
116 (void)memset_s(ch, size + 1, 0x00, size + 1);
117 if (memcpy_s(ch, size + 1, data, size) != EOK) {
118 std::cout << "copy failed." << std::endl;
119 free(ch);
120 ch = nullptr;
121 return 0;
122 }
123
124 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
125 free(ch);
126 ch = nullptr;
127 return 0;
128 }
129
130