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 "abilitymgrecologicalruleinterceptor_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ecological_rule_interceptor.h"
23 #undef private
24
25 #include "ability_ecological_rule_mgr_service_param.h"
26 #include "ability_record.h"
27 #include "securec.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 FOO_MAX_LEN = 1024;
39 constexpr size_t U32_AT_SIZE = 4;
40 constexpr size_t OFFSET_ZERO = 24;
41 constexpr size_t OFFSET_ONE = 16;
42 constexpr size_t OFFSET_TWO = 8;
43 constexpr uint8_t ENABLE = 2;
44 } // namespace
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) |
50 (ptr[INPUT_TWO] << OFFSET_TWO) | 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 =
61 AbilityRecord::CreateAbilityRecord(abilityRequest);
62 if (abilityRecord) {
63 token = abilityRecord->GetToken();
64 }
65 return token;
66 }
67
DoSomethingInterestingWithMyAPI(const char* data, size_t size)68 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
69 {
70 std::shared_ptr<EcologicalRuleInterceptor> executer =
71 std::make_shared<EcologicalRuleInterceptor>();
72 Want want;
73 int requestCode = static_cast<int>(GetU32Data(data));
74 int32_t userId = static_cast<int32_t>(GetU32Data(data));
75 bool isWithUI = *data % ENABLE;
76 sptr<IRemoteObject> token = GetFuzzAbilityToken();
77 auto shouldBlockFunc = []() { return false; };
78 AbilityInterceptorParam param =
79 AbilityInterceptorParam(want, requestCode, userId, isWithUI, token, shouldBlockFunc);
80 const std::shared_ptr<AppExecFwk::AbilityInfo> abilityInfo;
81 AbilityCallerInfo callerInfo;
82 int32_t bundleType = static_cast<int32_t>(GetU32Data(data));
83 executer->DoProcess(param);
84 executer->DoProcess(want, userId);
85 executer->GetEcologicalTargetInfo(want, abilityInfo, callerInfo);
86 executer->GetEcologicalCallerInfo(want, callerInfo, userId, token);
87 executer->InitErmsCallerInfo(want, abilityInfo, callerInfo, userId, token);
88 executer->GetAppTypeByBundleType(bundleType);
89 return true;
90 }
91 } // namespace OHOS
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 std::cout << "invalid data" << std::endl;
99 return 0;
100 }
101
102 /* Validate the length of size */
103 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
104 return 0;
105 }
106
107 char* ch = (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 + 1, 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 }