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 "abilityinterfacesappmgrrenderstateobserverstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "render_state_observer_stub.h"
23 #undef private
24
25 #include "securec.h"
26 #include "parcel.h"
27 #include "ability_record.h"
28
29 using namespace OHOS::AAFwk;
30 using namespace OHOS::AppExecFwk;
31
32 namespace OHOS {
33 namespace {
34 constexpr int INPUT_ZERO = 0;
35 constexpr int INPUT_ONE = 1;
36 constexpr int INPUT_TWO = 2;
37 constexpr int INPUT_THREE = 3;
38 constexpr size_t U32_AT_SIZE = 4;
39 constexpr size_t OFFSET_ZERO = 24;
40 constexpr size_t OFFSET_ONE = 16;
41 constexpr size_t OFFSET_TWO = 8;
42 constexpr uint8_t ENABLE = 2;
43 }
44 const std::u16string IR_ENDER_STATE_OBSERVER_TOKEN = u"ohos.appexecfwk.IRenderStateObserver";
GetU32Data(const char * ptr)45 uint32_t GetU32Data(const char* ptr)
46 {
47 // convert fuzz input data to an integer
48 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
49 ptr[INPUT_THREE];
50 }
51 class RenderStateObserverStubFUZZ : public RenderStateObserverStub {
52 public:
RenderStateObserverStubFUZZ()53 explicit RenderStateObserverStubFUZZ() {};
~RenderStateObserverStubFUZZ()54 virtual ~ RenderStateObserverStubFUZZ() {};
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)55 int OnRemoteRequest(
56 uint32_t code, MessageParcel &data, MessageParcel &reply, MessageOption &option) override{ return 0; };
OnRenderStateChanged(const RenderStateData & renderStateData)57 void OnRenderStateChanged(const RenderStateData &renderStateData) override{};
58 };
59
GetFuzzAbilityToken()60 sptr<Token> GetFuzzAbilityToken()
61 {
62 sptr<Token> token = nullptr;
63 AbilityRequest abilityRequest;
64 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
65 abilityRequest.abilityInfo.name = "MainAbility";
66 abilityRequest.abilityInfo.type = AbilityType::DATA;
67 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
68 if (abilityRecord) {
69 token = abilityRecord->GetToken();
70 }
71 return token;
72 }
73
DoSomethingInterestingWithMyAPI(const char * data,size_t size)74 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
75 {
76 uint32_t code = static_cast<uint32_t>(IRenderStateObserver::ON_RENDER_STATE_CHANGED);
77 MessageParcel parcel;
78 parcel.WriteInterfaceToken(IR_ENDER_STATE_OBSERVER_TOKEN);
79 parcel.WriteBuffer(data, size);
80 parcel.RewindRead(0);
81 MessageParcel reply;
82 MessageOption option;
83 std::shared_ptr<RenderStateObserverStub> abms = std::make_shared<RenderStateObserverStubFUZZ>();
84 abms->OnRemoteRequest(code, parcel, reply, option);
85 return true;
86 }
87 }
88
89 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)90 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
91 {
92 /* Run your code on data */
93 if (data == nullptr) {
94 std::cout << "invalid data" << std::endl;
95 return 0;
96 }
97
98 /* Validate the length of size */
99 if (size < OHOS::U32_AT_SIZE) {
100 return 0;
101 }
102
103 char* ch = static_cast<char*>(malloc(size + 1));
104 if (ch == nullptr) {
105 std::cout << "malloc failed." << std::endl;
106 return 0;
107 }
108
109 (void)memset_s(ch, size + 1, 0x00, size + 1);
110 if (memcpy_s(ch, size + 1, data, size) != EOK) {
111 std::cout << "copy failed." << std::endl;
112 free(ch);
113 ch = nullptr;
114 return 0;
115 }
116
117 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
118 free(ch);
119 ch = nullptr;
120 return 0;
121 }
122
123