1 /*
2 * Copyright (c) 2024 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 "formrendermgrinner_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_render/form_render_mgr_inner.h"
24 #undef private
25 #undef protected
26 #include "message_parcel.h"
27 #include "securec.h"
28
29 using namespace OHOS::AppExecFwk;
30
31 namespace OHOS {
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 FormRenderMgrInner formRenderMgrInner;
42 FormRecord formRecord;
43 Want want;
44 sptr<IRemoteObject> hostToken = nullptr;
45 formRenderMgrInner.RenderForm(formRecord, want, hostToken);
46 WantParams wantParams;
47 bool mergeData = *data % ENABLE;
48 FormProviderData formProviderData;
49 formRenderMgrInner.UpdateRenderingForm(formRecord, formProviderData, wantParams, mergeData);
50 int64_t formId = static_cast<int64_t>(GetU32Data(data));
51 std::string compId(data, size);
52 formRenderMgrInner.StopRenderingForm(formId, formRecord, compId);
53 std::vector<FormRecord> formRecords;
54 formRecords.emplace_back(formRecord);
55 std::string bundleName(data, size);
56 int32_t userId = static_cast<int32_t>(GetU32Data(data));
57 formRenderMgrInner.ReloadForm(std::move(formRecords), bundleName, userId);
58 formRenderMgrInner.StopRenderingFormCallback(formId, want);
59 sptr<FormRenderConnection> connection = new (std::nothrow) FormRenderConnection(formRecord, wantParams);
60 formRenderMgrInner.AddConnection(formId, connection);
61 formRenderMgrInner.RemoveConnection(formId);
62 sptr<IRemoteObject> renderRemoteObj = nullptr;
63 formRenderMgrInner.AddRenderDeathRecipient(renderRemoteObj);
64 formRenderMgrInner.RerenderAllForms();
65 sptr<IRemoteObject> host = nullptr;
66 formRenderMgrInner.CleanFormHost(host);
67 formRenderMgrInner.OnRenderingBlock(bundleName);
68 formRenderMgrInner.ReleaseRenderer(formId, formRecord, compId);
69 formRenderMgrInner.PostOnUnlockTask();
70 formRenderMgrInner.PostSetVisibleChangeTask(formId, true);
71 formRenderMgrInner.GetReRenderCount();
72 formRenderMgrInner.GetRenderRemoteObj();
73 sptr<IFormRender> remoteObject = nullptr;
74 formRenderMgrInner.SetRenderRemoteObj(remoteObject);
75 std::vector<int64_t> formIds;
76 sptr<IRemoteObject> remoteObjectOfHost = nullptr;
77 formRenderMgrInner.RecycleForms(formIds, want, remoteObjectOfHost);
78 formRenderMgrInner.RecoverForms(formIds, wantParams);
79 formRenderMgrInner.DisconnectRenderService(connection, size);
80 formRenderMgrInner.RemoveHostToken(host);
81 formRenderMgrInner.NotifyHostRenderServiceIsDead();
82 formRenderMgrInner.FillBundleInfo(want, bundleName);
83 formRenderMgrInner.CheckIfFormRecycled(formRecord, want);
84 formRenderMgrInner.GetConnectionAndRenderForm(formRecord, want);
85 sptr<IRemoteObject> renderObj = nullptr;
86 formRenderMgrInner.GetRenderObject(renderObj);
87 return true;
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 return 0;
97 }
98
99 if (size < OHOS::U32_AT_SIZE) {
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