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 "abilitydebugdeal_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ability_debug_deal.h"
23 #undef private
24 #include "ability_record.h"
25 #include "ability_debug_response_stub.h"
26 #include "securec.h"
27
28 using namespace OHOS::AAFwk;
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
32 namespace {
33 constexpr int INPUT_ZERO = 0;
34 constexpr int INPUT_ONE = 1;
35 constexpr int INPUT_THREE = 3;
36 constexpr uint8_t ENABLE = 2;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr size_t OFFSET_ZERO = 24;
39 constexpr size_t OFFSET_ONE = 16;
40 constexpr size_t OFFSET_TWO = 8;
41 }
42
GetU32Data(const char * ptr)43 uint32_t GetU32Data(const char* ptr)
44 {
45 // convert fuzz input data to an integer
46 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
47 ptr[INPUT_THREE];
48 }
49
GetFuzzAbilityRecord()50 std::shared_ptr<AbilityRecord> GetFuzzAbilityRecord()
51 {
52 sptr<Token> token = nullptr;
53 AbilityRequest abilityRequest;
54 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
55 abilityRequest.abilityInfo.name = "MainAbility";
56 abilityRequest.abilityInfo.type = AbilityType::DATA;
57 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
58 if (!abilityRecord) {
59 return nullptr;
60 }
61 return abilityRecord;
62 }
63
GetFuzzAbilityToken()64 sptr<Token> GetFuzzAbilityToken()
65 {
66 sptr<Token> token = nullptr;
67 std::shared_ptr<AbilityRecord> abilityRecord = GetFuzzAbilityRecord();
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 bool boolParam = *data % ENABLE;
77 sptr<IRemoteObject> token = GetFuzzAbilityToken();
78 std::vector<sptr<IRemoteObject>> tokens;
79 std::weak_ptr<AbilityDebugDeal> deal;
80 auto abilityDebugDeal = std::make_shared<AbilityDebugDeal>();
81 abilityDebugDeal->OnAbilitysDebugStarted(tokens);
82 abilityDebugDeal->OnAbilitysDebugStoped(tokens);
83 abilityDebugDeal->OnAbilitysAssertDebugChange(tokens, boolParam);
84 abilityDebugDeal->RegisterAbilityDebugResponse();
85
86 auto abilityDebugResponse = std::make_shared<AbilityDebugResponse>(deal);
87 abilityDebugResponse->OnAbilitysDebugStarted(tokens);
88 abilityDebugResponse->OnAbilitysDebugStoped(tokens);
89 abilityDebugResponse->OnAbilitysAssertDebugChange(tokens, boolParam);
90
91 return true;
92 }
93 }
94
95 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)96 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
97 {
98 /* Run your code on data */
99 if (data == nullptr) {
100 std::cout << "invalid data" << std::endl;
101 return 0;
102 }
103
104 /* Validate the length of size */
105 if (size < OHOS::U32_AT_SIZE) {
106 return 0;
107 }
108
109 char* ch = static_cast<char*>(malloc(size + 1));
110 if (ch == nullptr) {
111 std::cout << "malloc failed." << std::endl;
112 return 0;
113 }
114
115 (void)memset_s(ch, size + 1, 0x00, size + 1);
116 if (memcpy_s(ch, size + 1, data, size) != EOK) {
117 std::cout << "copy failed." << std::endl;
118 free(ch);
119 ch = nullptr;
120 return 0;
121 }
122
123 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
124 free(ch);
125 ch = nullptr;
126 return 0;
127 }
128
129