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 #include "abilitychildprocessrecord_fuzzer.h"
16
17 #define private public
18 #include "app_running_record.h"
19 #include "child_process_record.h"
20 #undef private
21 #include "child_process_request.h"
22 #include <cstddef>
23 #include <cstdint>
24 #include <iostream>
25 #include "securec.h"
26 #include "configuration.h"
27 using namespace OHOS::AppExecFwk;
28 using namespace OHOS::AAFwk;
29 namespace OHOS {
30 namespace {
31 constexpr size_t FOO_MAX_LEN = 1024;
32 constexpr size_t U32_AT_SIZE = 4;
33 constexpr int INPUT_ZERO = 0;
34 constexpr int INPUT_ONE = 1;
35 constexpr int INPUT_THREE = 3;
36 constexpr uint8_t ENABLE = 2;
37 constexpr size_t OFFSET_ZERO = 24;
38 constexpr size_t OFFSET_ONE = 16;
39 constexpr size_t OFFSET_TWO = 8;
40 }
41
42
GetU32Data(const char * ptr)43 uint32_t GetU32Data(const char* ptr)
44 {
45 // convert fuzz input data to an integer
46 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[ENABLE] << OFFSET_TWO) |
47 ptr[INPUT_THREE];
48 }
49
50
DoSomethingInterestingWithMyAPI(const char * data,size_t size)51 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
52 {
53 int32_t hostPid = static_cast<int32_t>(GetU32Data(data));
54 ChildProcessRequest request;
55 std::shared_ptr<AppRunningRecord> hostRecord;
56 ChildProcessRecord::CreateChildProcessRecord(hostPid, request, hostRecord);
57 std::string stringParam(data, size);
58 sptr<IRemoteObject> mainProcessCb;
59 int32_t childProcessCount = static_cast<int32_t>(GetU32Data(data));
60 bool isStartWithDebug = *data % ENABLE;
61 ChildProcessRecord::CreateNativeChildProcessRecord(hostPid, stringParam, hostRecord, mainProcessCb,
62 childProcessCount, isStartWithDebug);
63 std::shared_ptr<ApplicationInfo> appInfo = std::make_shared<ApplicationInfo>();
64 int32_t recordId = static_cast<int32_t>(GetU32Data(data));
65 auto appRecord = std::make_shared<AppRunningRecord>(appInfo, recordId, stringParam);
66 auto childRecord = std::make_shared<ChildProcessRecord>(hostPid, request, appRecord);
67 childRecord->SetPid(hostPid);
68 childRecord->GetPid();
69 childRecord->GetHostPid();
70 int32_t uid = static_cast<int32_t>(GetU32Data(data));
71 childRecord->SetUid(uid);
72 childRecord->GetUid();
73 childRecord->GetProcessName();
74 childRecord->GetSrcEntry();
75 childRecord->GetHostRecord();
76 sptr<IChildScheduler> scheduler;
77 childRecord->SetScheduler(scheduler);
78 sptr<AppDeathRecipient> recipient;
79 childRecord->SetDeathRecipient(recipient);
80 childRecord->RegisterDeathRecipient();
81 childRecord-> RemoveDeathRecipient();
82 childRecord-> ScheduleExitProcessSafely();
83 childRecord->isStartWithDebug();
84 childRecord-> GetChildProcessType();
85 childRecord->GetMainProcessCallback();
86 childRecord->ClearMainProcessCallback();
87 std::string entryParams(data, size);
88 childRecord->GetEntryParams();
89 childRecord->MakeProcessName(hostRecord);
90 return true;
91 }
92 }
93
94 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)95 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
96 {
97 /* Run your code on data */
98 if (data == nullptr) {
99 std::cout << "invalid data" << std::endl;
100 return 0;
101 }
102
103 /* Validate the length of size */
104 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
105 return 0;
106 }
107
108 char* ch = (char*)malloc(size + 1);
109 if (ch == nullptr) {
110 std::cout << "malloc failed." << std::endl;
111 return 0;
112 }
113
114 (void)memset_s(ch, size + 1, 0x00, size + 1);
115 if (memcpy_s(ch, size, data, size) != EOK) {
116 std::cout << "copy failed." << std::endl;
117 free(ch);
118 ch = nullptr;
119 return 0;
120 }
121
122 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
123 free(ch);
124 ch = nullptr;
125 return 0;
126 }
127
128