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 "abilitymgrrdbparserutil_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "rdb/parser_util.h"
23 #include "config_policy_utils.h"
24 #undef private
25
26 #include "securec.h"
27 #include "ability_record.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 U32_AT_SIZE = 4;
39 constexpr size_t OFFSET_ZERO = 24;
40 constexpr size_t OFFSET_ONE = 16;
41 constexpr size_t OFFSET_TWO = 8;
42 constexpr uint8_t ENABLE = 2;
43 }
GetU32Data(const char * ptr)44 uint32_t GetU32Data(const char* ptr)
45 {
46 // convert fuzz input data to an integer
47 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
48 ptr[INPUT_THREE];
49 }
50
GetFuzzAbilityToken()51 sptr<Token> GetFuzzAbilityToken()
52 {
53 sptr<Token> token = nullptr;
54 AbilityRequest abilityRequest;
55 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
56 abilityRequest.abilityInfo.name = "MainAbility";
57 abilityRequest.abilityInfo.type = AbilityType::DATA;
58 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
59 if (abilityRecord) {
60 token = abilityRecord->GetToken();
61 }
62 return token;
63 }
64
DoSomethingInterestingWithMyAPI(const char * data,size_t size)65 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
66 {
67 AbilityRuntime::ParserUtil &instance = AbilityRuntime::ParserUtil::GetInstance();
68 std::vector<std::tuple<std::string, std::string, std::string>> list;
69 instance.GetResidentProcessRawData(list);
70 std::string jsonStr(data, size);
71 instance.ParsePreInstallAbilityConfig(jsonStr, list);
72 std::vector<std::string> rootDirList;
73 instance.GetPreInstallRootDirList(rootDirList);
74 nlohmann::json jsonBuf;
75 instance.ReadFileIntoJson(jsonStr, jsonBuf);
76 instance.FilterInfoFromJson(jsonBuf, list);
77 return true;
78 }
79 }
80
81 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)82 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
83 {
84 /* Run your code on data */
85 if (data == nullptr) {
86 std::cout << "invalid data" << std::endl;
87 return 0;
88 }
89
90 /* Validate the length of size */
91 if (size < OHOS::U32_AT_SIZE) {
92 return 0;
93 }
94
95 char* ch = static_cast<char*>(malloc(size + 1));
96 if (ch == nullptr) {
97 std::cout << "malloc failed." << std::endl;
98 return 0;
99 }
100
101 (void)memset_s(ch, size + 1, 0x00, size + 1);
102 if (memcpy_s(ch, size + 1, data, size) != EOK) {
103 std::cout << "copy failed." << std::endl;
104 free(ch);
105 ch = nullptr;
106 return 0;
107 }
108
109 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
110 free(ch);
111 ch = nullptr;
112 return 0;
113 }
114
115