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 "abilitydebugresponseproxy_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "ability_debug_response_proxy.h"
24 #undef protected
25 #undef private
26
27 #include "ability_record.h"
28
29 using namespace OHOS::AAFwk;
30 using namespace OHOS::AppExecFwk;
31 using namespace OHOS::AbilityRuntime;
32
33 namespace OHOS {
34 namespace {
35 constexpr int INPUT_ZERO = 0;
36 constexpr int INPUT_ONE = 1;
37 constexpr int INPUT_THREE = 3;
38 constexpr size_t U32_AT_SIZE = 4;
39 constexpr uint8_t ENABLE = 2;
40 constexpr size_t OFFSET_ZERO = 24;
41 constexpr size_t OFFSET_ONE = 16;
42 constexpr size_t OFFSET_TWO = 8;
43 }
44
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[ENABLE] << OFFSET_TWO) |
49 ptr[INPUT_THREE];
50 }
51
GetFuzzAbilityToken()52 sptr<Token> GetFuzzAbilityToken()
53 {
54 sptr<Token> token = nullptr;
55 AbilityRequest abilityRequest;
56 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
57 abilityRequest.abilityInfo.name = "MainAbility";
58 abilityRequest.abilityInfo.type = AbilityType::DATA;
59 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
60 if (abilityRecord) {
61 token = abilityRecord->GetToken();
62 }
63 return token;
64 }
65
AbilityDebugResponseProxyFuzztest1(bool boolParam,std::string & stringParam,int32_t int32Param)66 void AbilityDebugResponseProxyFuzztest1(bool boolParam, std::string &stringParam, int32_t int32Param)
67 {
68 std::shared_ptr<AbilityDebugResponseProxy> proxy =
69 std::make_shared<AbilityDebugResponseProxy>(nullptr); // branch constructor
70 MessageParcel data;
71 proxy->WriteInterfaceToken(data); // branch
72 std::vector<sptr<IRemoteObject>> tokens;
73 proxy->OnAbilitysDebugStarted(tokens); // branch
74 proxy->OnAbilitysDebugStoped(tokens); // branch
75 proxy->OnAbilitysAssertDebugChange(tokens, boolParam); // branch
76 sptr<Token> token = GetFuzzAbilityToken();
77 tokens.emplace_back(token);
78 proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens no empty.
79 tokens.clear();
80 proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens empty.
81 }
82
DoSomethingInterestingWithMyAPI(const char * data,size_t size)83 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
84 {
85 bool boolParam = *data % ENABLE;
86 std::string stringParam(data, size);
87 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
88 AbilityDebugResponseProxyFuzztest1(boolParam, stringParam, int32Param);
89 return true;
90 }
91 }
92
93 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)94 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
95 {
96 /* Run your code on data */
97 if (data == nullptr) {
98 return 0;
99 }
100
101 /* Validate the length of size */
102 if (size < OHOS::U32_AT_SIZE) {
103 return 0;
104 }
105
106 char* ch = static_cast<char*>(malloc(size + 1));
107 if (ch == nullptr) {
108 std::cout << "malloc failed." << std::endl;
109 return 0;
110 }
111
112 (void)memset_s(ch, size + 1, 0x00, size + 1);
113 if (memcpy_s(ch, size, data, size) != EOK) {
114 std::cout << "copy failed." << std::endl;
115 free(ch);
116 ch = nullptr;
117 return 0;
118 }
119
120 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
121 free(ch);
122 ch = nullptr;
123 return 0;
124 }
125
126