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 size_t FOO_MAX_LEN = 1024;
36 constexpr size_t U32_AT_SIZE = 4;
37 constexpr size_t OFFSET_ZERO = 24;
38 constexpr size_t OFFSET_ONE = 16;
39 constexpr size_t OFFSET_TWO = 8;
40 }
GetU32Data(const char * ptr)41 uint32_t GetU32Data(const char* ptr)
42 {
43 // convert fuzz input data to an integer
44 return (ptr[0] << OFFSET_ZERO) | (ptr[1] << OFFSET_ONE) | (ptr[2] << OFFSET_TWO) | ptr[3];
45 }
GetFuzzAbilityToken()46 sptr<Token> GetFuzzAbilityToken()
47 {
48 sptr<Token> token = nullptr;
49
50 AbilityRequest abilityRequest;
51 abilityRequest.appInfo.bundleName = "com.example.fuzzTest";
52 abilityRequest.abilityInfo.name = "MainAbility";
53 abilityRequest.abilityInfo.type = AbilityType::PAGE;
54 std::shared_ptr<AbilityRecord> abilityRecord = AbilityRecord::CreateAbilityRecord(abilityRequest);
55 if (abilityRecord) {
56 token = abilityRecord->GetToken();
57 }
58
59 return token;
60 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)61 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
62 {
63 int pid = static_cast<int>(GetU32Data(data));
64 std::string bundleName(data, size);
65 Parcel wantParcel;
66 Want *want = nullptr;
67 if (wantParcel.WriteBuffer(data, size)) {
68 want = Want::Unmarshalling(wantParcel);
69 }
70 int32_t userId = static_cast<int32_t>(GetU32Data(data));
71 std::shared_ptr<SystemDialogScheduler> systemDialogScheduler = std::make_shared<SystemDialogScheduler>();
72 systemDialogScheduler->GetANRDialogWant(static_cast<int>(userId), pid, *want);
73 std::vector<DialogAppInfo> dialogAppInfos;
74 systemDialogScheduler->GetSelectorParams(dialogAppInfos);
75 int32_t labelId = static_cast<int32_t>(GetU32Data(data));
76 std::string appName(data, size);
77 systemDialogScheduler->GetAppNameFromResource(labelId, bundleName, userId, appName);
78 InnerMissionInfo innerMissionInfo;
79 innerMissionInfo.ToJsonStr();
80 std::string jsonStr(data, size);
81 innerMissionInfo.FromJsonStr(jsonStr);
82 std::vector<std::string> info;
83 innerMissionInfo.Dump(info);
84 nlohmann::json value;
85 std::string node(data, size);
86 JsonType jsonType = JsonType::STRING;
87 return innerMissionInfo.CheckJsonNode(value, node, jsonType);
88 }
89 }
90
91 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)92 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
93 {
94 /* Run your code on data */
95 if (data == nullptr) {
96 std::cout << "invalid data" << std::endl;
97 return 0;
98 }
99
100 /* Validate the length of size */
101 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
102 return 0;
103 }
104
105 char* ch = (char *)malloc(size + 1);
106 if (ch == nullptr) {
107 std::cout << "malloc failed." << std::endl;
108 return 0;
109 }
110
111 (void)memset_s(ch, size + 1, 0x00, size + 1);
112 if (memcpy_s(ch, size, data, size) != EOK) {
113 std::cout << "copy failed." << std::endl;
114 free(ch);
115 ch = nullptr;
116 return 0;
117 }
118
119 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
120 free(ch);
121 ch = nullptr;
122 return 0;
123 }
124
125