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 "startabilityutils_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "start_ability_utils.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
StartAbilityUtilsFuzztest1(bool boolParam,std::string & stringParam,int32_t int32Param)66 void StartAbilityUtilsFuzztest1(bool boolParam, std::string &stringParam, int32_t int32Param)
67 {
68 Want want;
69 sptr<Token> callerToken = GetFuzzAbilityToken();
70 StartAbilityUtils::GetAppIndex(want, callerToken, int32Param);
71 AppExecFwk::ApplicationInfo appInfo;
72 StartAbilityUtils::GetApplicationInfo(stringParam, int32Param, appInfo);
73 AppExecFwk::AbilityInfo abilityInfo;
74 StartAbilityUtils::GetCallerAbilityInfo(nullptr, abilityInfo);
75 StartAbilityUtils::GetCallerAbilityInfo(callerToken, abilityInfo);
76 StartAbilityUtils::CheckAppProvisionMode(want, int32Param);
77 std::shared_ptr<StartAbilityInfoWrap> startAbilityInfoWrap =
78 std::make_shared<StartAbilityInfoWrap>(want, int32Param, int32Param, callerToken, boolParam);
79 StartAbilityInfo::CreateStartAbilityInfo(want, int32Param, int32Param, nullptr);
80 StartAbilityInfo::CreateCallerAbilityInfo(nullptr);
81 StartAbilityInfo::CreateCallerAbilityInfo(callerToken);
82 StartAbilityUtils::CheckAppProvisionMode(stringParam, int32Param);
83 StartAbilityUtils::GetCloneAppIndexes(stringParam, int32Param);
84 }
85
DoSomethingInterestingWithMyAPI(const char * data,size_t size)86 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
87 {
88 bool boolParam = *data % ENABLE;
89 std::string stringParam(data, size);
90 int32_t int32Param = static_cast<int32_t>(GetU32Data(data));
91 StartAbilityUtilsFuzztest1(boolParam, stringParam, int32Param);
92 return true;
93 }
94 }
95
96 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)97 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
98 {
99 /* Run your code on data */
100 if (data == nullptr) {
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, 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