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 FOO_MAX_LEN = 1024;
32 constexpr size_t U32_AT_SIZE = 4;
33 constexpr uint8_t ENABLE = 2;
GetU32Data(const char * ptr)34 uint32_t GetU32Data(const char* ptr)
35 {
36 // convert fuzz input data to an integer
37 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | ptr[3];
38 }
DoSomethingInterestingWithMyAPI(const char * data,size_t size)39 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
40 {
41 FormMgr formMgr;
42 int errorCode = static_cast<int>(GetU32Data(data));
43 formMgr.GetErrorMsg(errorCode);
44 int64_t formId = static_cast<int64_t>(GetU32Data(data));
45 Want want;
46 sptr<IRemoteObject> callerToken = nullptr;
47 FormJsInfo formInfo;
48 formMgr.AddForm(formId, want, callerToken, formInfo);
49 formMgr.DeleteForm(formId, callerToken);
50 bool delCache = *data % ENABLE;
51 formMgr.ReleaseForm(formId, callerToken, delCache);
52 FormProviderData formBindingData;
53 formMgr.UpdateForm(formId, formBindingData);
54 formMgr.RequestForm(formId, callerToken, want);
55 std::vector<int64_t> formIds;
56 formIds.emplace_back(formId);
57 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
58 formMgr.NotifyWhetherVisibleForms(formIds, callerToken, formVisibleType);
59 formMgr.CastTempForm(formId, callerToken);
60 std::string stringData(data);
61 formMgr.DumpStorageFormInfos(stringData);
62 std::string bundleName(data);
63 std::string formInfos(data);
64 formMgr.DumpFormInfoByBundleName(bundleName, formInfos);
65 formMgr.DumpFormInfoByFormId(formId, stringData);
66 formMgr.DumpFormTimerByFormId(formId, stringData);
67 formMgr.MessageEvent(formId, want, callerToken);
68 formMgr.RouterEvent(formId, want, callerToken);
69 int64_t nextTime = static_cast<int64_t>(GetU32Data(data));
70 formMgr.SetNextRefreshTime(formId, nextTime);
71 std::unique_ptr<FormProviderData> formBindingDatas = nullptr;
72 formMgr.RequestPublishForm(want, delCache, formBindingDatas, formId);
73 formMgr.LifecycleUpdate(formIds, callerToken, delCache);
74 formMgr.GetRecoverStatus();
75 formMgr.SetRecoverStatus(errorCode);
76 formMgr.GetErrorMessage(errorCode);
77 std::shared_ptr<FormCallbackInterface> formDeathCallback = nullptr;
78 formMgr.RegisterDeathCallback(formDeathCallback);
79 formMgr.UnRegisterDeathCallback(formDeathCallback);
80 formMgr.GetDeathRecipient();
81 formMgr.CheckIsDeathCallbackRegistered(formDeathCallback);
82 return formMgr.Reconnect();
83 }
84 }
85
86 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)87 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
88 {
89 /* Run your code on data */
90 if (data == nullptr) {
91 return 0;
92 }
93
94 if (size < OHOS::U32_AT_SIZE) {
95 return 0;
96 }
97
98 /* Validate the length of size */
99 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
100 return 0;
101 }
102
103 char* ch = static_cast<char*>(malloc(size + 1));
104 if (ch == nullptr) {
105 return 0;
106 }
107
108 (void)memset_s(ch, size + 1, 0x00, size + 1);
109 if (memcpy_s(ch, size + 1, data, size) != EOK) {
110 free(ch);
111 ch = nullptr;
112 return 0;
113 }
114
115 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
116 free(ch);
117 ch = nullptr;
118 return 0;
119 }
120
121