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 FOO_MAX_LEN = 1024;
39 constexpr size_t U32_AT_SIZE = 4;
40 constexpr uint8_t ENABLE = 2;
41 constexpr size_t OFFSET_ZERO = 24;
42 constexpr size_t OFFSET_ONE = 16;
43 constexpr size_t OFFSET_TWO = 8;
44 }
45
GetU32Data(const char * ptr)46 uint32_t GetU32Data(const char* ptr)
47 {
48 // convert fuzz input data to an integer
49 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
50 ptr[INPUT_THREE];
51 }
52
GetFuzzAbilityToken()53 sptr<Token> GetFuzzAbilityToken()
54 {
55 sptr<Token> token = nullptr;
56 AbilityRequest abilityRequest;
57 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
58 abilityRequest.abilityInfo.name = "MainAbility";
59 abilityRequest.abilityInfo.type = AbilityType::DATA;
60 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
61 if (abilityRecord) {
62 token = abilityRecord->GetToken();
63 }
64 return token;
65 }
66
AbilityDebugResponseProxyFuzztest1(bool boolParam,std::string & stringParam,int32_t int32Param)67 void AbilityDebugResponseProxyFuzztest1(bool boolParam, std::string &stringParam, int32_t int32Param)
68 {
69 std::shared_ptr<AbilityDebugResponseProxy> proxy =
70 std::make_shared<AbilityDebugResponseProxy>(nullptr); // branch constructor
71 MessageParcel data;
72 proxy->WriteInterfaceToken(data); // branch
73 std::vector<sptr<IRemoteObject>> tokens;
74 proxy->OnAbilitysDebugStarted(tokens); // branch
75 proxy->OnAbilitysDebugStoped(tokens); // branch
76 proxy->OnAbilitysAssertDebugChange(tokens, boolParam); // branch
77 sptr<Token> token = GetFuzzAbilityToken();
78 tokens.emplace_back(token);
79 proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens no empty.
80 tokens.clear();
81 proxy->SendRequest(static_cast<IAbilityDebugResponse::Message>(int32Param), tokens); // branch tokens empty.
82 }
83
DoSomethingInterestingWithMyAPI(const char * data,size_t size)84 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
85 {
86 bool boolParam = *data % ENABLE;
87 std::string stringParam(data, size);
88 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
89 AbilityDebugResponseProxyFuzztest1(boolParam, stringParam, int32Param);
90 return true;
91 }
92 }
93
94 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)95 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
96 {
97 /* Run your code on data */
98 if (data == nullptr) {
99 return 0;
100 }
101
102 /* Validate the length of size */
103 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
104 return 0;
105 }
106
107 char* ch = static_cast<char*>(malloc(size + 1));
108 if (ch == nullptr) {
109 std::cout << "malloc failed." << std::endl;
110 return 0;
111 }
112
113 (void)memset_s(ch, size + 1, 0x00, size + 1);
114 if (memcpy_s(ch, size, data, size) != EOK) {
115 std::cout << "copy failed." << std::endl;
116 free(ch);
117 ch = nullptr;
118 return 0;
119 }
120
121 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
122 free(ch);
123 ch = nullptr;
124 return 0;
125 }
126
127