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 "formmgr_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_mgr.h"
24 #undef private
25 #undef protected
26 #include "securec.h"
27
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 constexpr size_t U32_AT_SIZE = 4;
32 constexpr uint8_t ENABLE = 2;
GetU32Data(const char * ptr)33 uint32_t GetU32Data(const char* ptr)
34 {
35 // convert fuzz input data to an integer
36 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
37 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)38 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
39 {
40 FormMgr formMgr;
41 int errorCode = static_cast<int>(GetU32Data(data));
42 formMgr.GetErrorMsg(errorCode);
43 int64_t formId = static_cast<int64_t>(GetU32Data(data));
44 Want want;
45 sptr<IRemoteObject> callerToken = nullptr;
46 FormJsInfo formInfo;
47 formMgr.AddForm(formId, want, callerToken, formInfo);
48 formMgr.DeleteForm(formId, callerToken);
49 bool delCache = *data % ENABLE;
50 formMgr.ReleaseForm(formId, callerToken, delCache);
51 FormProviderData formBindingData;
52 formMgr.UpdateForm(formId, formBindingData);
53 formMgr.RequestForm(formId, callerToken, want);
54 std::vector<int64_t> formIds;
55 formIds.emplace_back(formId);
56 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
57 formMgr.NotifyWhetherVisibleForms(formIds, callerToken, formVisibleType);
58 formMgr.CastTempForm(formId, callerToken);
59 std::string stringData(data);
60 formMgr.DumpStorageFormInfos(stringData);
61 std::string bundleName(data);
62 std::string formInfos(data);
63 formMgr.DumpFormInfoByBundleName(bundleName, formInfos);
64 formMgr.DumpFormInfoByFormId(formId, stringData);
65 formMgr.DumpFormTimerByFormId(formId, stringData);
66 formMgr.MessageEvent(formId, want, callerToken);
67 formMgr.RouterEvent(formId, want, callerToken);
68 int64_t nextTime = static_cast<int64_t>(GetU32Data(data));
69 formMgr.SetNextRefreshTime(formId, nextTime);
70 std::unique_ptr<FormProviderData> formBindingDatas = nullptr;
71 formMgr.RequestPublishForm(want, delCache, formBindingDatas, formId);
72 formMgr.LifecycleUpdate(formIds, callerToken, delCache);
73 formMgr.GetRecoverStatus();
74 formMgr.SetRecoverStatus(errorCode);
75 formMgr.GetErrorMessage(errorCode);
76 std::shared_ptr<FormCallbackInterface> formDeathCallback = nullptr;
77 formMgr.RegisterDeathCallback(formDeathCallback);
78 formMgr.UnRegisterDeathCallback(formDeathCallback);
79 formMgr.GetDeathRecipient();
80 formMgr.CheckIsDeathCallbackRegistered(formDeathCallback);
81 return formMgr.Reconnect();
82 }
83 }
84
85 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)86 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
87 {
88 /* Run your code on data */
89 if (data == nullptr) {
90 return 0;
91 }
92
93 if (size < OHOS::U32_AT_SIZE) {
94 return 0;
95 }
96
97 char* ch = static_cast<char*>(malloc(size + 1));
98 if (ch == nullptr) {
99 return 0;
100 }
101
102 (void)memset_s(ch, size + 1, 0x00, size + 1);
103 if (memcpy_s(ch, size + 1, data, size) != EOK) {
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