1 /*
2 * Copyright (c) 2022 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 "abilitymgrrest_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "ability_interceptor.h"
23 #include "implicit_start_processor.h"
24 #include "system_dialog_scheduler.h"
25 #undef private
26 #include "inner_mission_info.h"
27 #include "parcel.h"
28 #include "securec.h"
29
30 using namespace OHOS::AAFwk;
31 using namespace OHOS::AppExecFwk;
32
33 namespace OHOS {
34 namespace {
35 constexpr int INPUT_ZERO = 0;
36 constexpr int INPUT_ONE = 1;
37 constexpr int INPUT_TWO = 2;
38 constexpr int INPUT_THREE = 3;
39 constexpr size_t FOO_MAX_LEN = 1024;
40 constexpr size_t U32_AT_SIZE = 4;
41 constexpr size_t OFFSET_ZERO = 24;
42 constexpr size_t OFFSET_ONE = 16;
43 constexpr size_t OFFSET_TWO = 8;
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[INPUT_TWO] << OFFSET_TWO) |
49 ptr[INPUT_THREE];
50 }
GetFuzzAbilityToken()51 sptr<Token> GetFuzzAbilityToken()
52 {
53 sptr<Token> token = nullptr;
54
55 AbilityRequest abilityRequest;
56 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
57 abilityRequest.abilityInfo.name = "MainAbility";
58 abilityRequest.abilityInfo.type = AbilityType::PAGE;
59 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
60 if (abilityRecord) {
61 token = abilityRecord->GetToken();
62 }
63
64 return token;
65 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)66 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
67 {
68 int pid = static_cast<int>(GetU32Data(data));
69 std::string bundleName(data, size);
70 Parcel wantParcel;
71 Want* want = nullptr;
72 if (wantParcel.WriteBuffer(data, size)) {
73 want = Want::Unmarshalling(wantParcel);
74 }
75 int32_t userId = static_cast<int32_t>(GetU32Data(data));
76 std::shared_ptr<SystemDialogScheduler> systemDialogScheduler = std::make_shared<SystemDialogScheduler>();
77 systemDialogScheduler->GetANRDialogWant(static_cast<int>(userId), pid, *want);
78 std::vector<DialogAppInfo> dialogAppInfos;
79 systemDialogScheduler->GetSelectorParams(dialogAppInfos);
80 int32_t labelId = static_cast<int32_t>(GetU32Data(data));
81 std::string appName(data, size);
82 systemDialogScheduler->GetAppNameFromResource(labelId, bundleName, userId, appName);
83 InnerMissionInfo innerMissionInfo;
84 innerMissionInfo.ToJsonStr();
85 std::string jsonStr(data, size);
86 innerMissionInfo.FromJsonStr(jsonStr);
87 std::vector<std::string> info;
88 innerMissionInfo.Dump(info);
89 nlohmann::json value;
90 std::string node(data, size);
91 JsonType jsonType = JsonType::STRING;
92 return innerMissionInfo.CheckJsonNode(value, node, jsonType);
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 std::cout << "invalid data" << std::endl;
102 return 0;
103 }
104
105 /* Validate the length of size */
106 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
107 return 0;
108 }
109
110 char* ch = (char*)malloc(size + 1);
111 if (ch == nullptr) {
112 std::cout << "malloc failed." << std::endl;
113 return 0;
114 }
115
116 (void)memset_s(ch, size + 1, 0x00, size + 1);
117 if (memcpy_s(ch, size, data, size) != EOK) {
118 std::cout << "copy failed." << std::endl;
119 free(ch);
120 ch = nullptr;
121 return 0;
122 }
123
124 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
125 free(ch);
126 ch = nullptr;
127 return 0;
128 }
129
130