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 "formmgrproxy_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_mgr_proxy.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 sptr<IRemoteObject> impl = nullptr;
42 FormMgrProxy formMgrProxy(impl);
43 int64_t formId = static_cast<int64_t>(GetU32Data(data));
44 Want want;
45 sptr<IRemoteObject> callerToken = nullptr;
46 FormJsInfo formInfo;
47 formMgrProxy.AddForm(formId, want, callerToken, formInfo);
48 formMgrProxy.DeleteForm(formId, callerToken);
49 bool delCache = *data % ENABLE;
50 formMgrProxy.ReleaseForm(formId, callerToken, delCache);
51 formMgrProxy.RequestForm(formId, callerToken, want);
52 std::vector<int64_t> formIds;
53 formIds.emplace_back(formId);
54 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
55 formMgrProxy.NotifyWhetherVisibleForms(formIds, callerToken, formVisibleType);
56 formMgrProxy.CastTempForm(formId, callerToken);
57 std::string stringData(data);
58 formMgrProxy.DumpStorageFormInfos(stringData);
59 std::string bundleName(data);
60 formMgrProxy.DumpFormInfoByBundleName(bundleName, stringData);
61 formMgrProxy.DumpFormInfoByFormId(formId, stringData);
62 std::string isTimingService(data);
63 formMgrProxy.DumpFormTimerByFormId(formId, isTimingService);
64 formMgrProxy.MessageEvent(formId, want, callerToken);
65 MessageParcel datas;
66 formMgrProxy.WriteInterfaceToken(datas);
67 std::string stringInfo(data);
68 formMgrProxy.GetStringInfo(IFormMgr::Message::FORM_MGR_ADD_FORM, datas, stringInfo);
69 FormInfo formInfoes;
70 std::vector<FormInfo> formInfos;
71 formInfos.emplace_back(formInfoes);
72 formMgrProxy.GetFormsInfo(IFormMgr::Message::FORM_MGR_ADD_FORM, datas, formInfos);
73 formMgrProxy.SendTransactCmd(IFormMgr::Message::FORM_MGR_ADD_FORM, datas, datas);
74 int32_t numFormsDeleted = static_cast<int32_t>(GetU32Data(data));
75 formMgrProxy.DeleteInvalidForms(formIds, callerToken, numFormsDeleted);
76 FormStateInfo stateInfo;
77 formMgrProxy.AcquireFormState(want, callerToken, stateInfo);
78 bool isVisible = *data % ENABLE;
79 formMgrProxy.NotifyFormsVisible(formIds, isVisible, callerToken);
80 bool isEnableUpdate = *data % ENABLE;
81 formMgrProxy.NotifyFormsEnableUpdate(formIds, isEnableUpdate, callerToken);
82 formMgrProxy.GetAllFormsInfo(formInfos);
83 formMgrProxy.GetFormsInfoByApp(bundleName, formInfos);
84 std::string moduleName(data);
85 formMgrProxy.GetFormsInfoByModule(bundleName, moduleName, formInfos);
86 FormInfoFilter filter;
87 formMgrProxy.GetFormsInfo(filter, formInfos);
88 formMgrProxy.StartAbility(want, callerToken);
89 std::string deviceId(data);
90 int64_t requestCode = static_cast<int64_t>(GetU32Data(data));
91 return formMgrProxy.ShareForm(formId, deviceId, callerToken, requestCode);
92 }
93 }
94
95 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)96 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
97 {
98 /* Run your code on data */
99 if (data == nullptr) {
100 return 0;
101 }
102
103 if (size < OHOS::U32_AT_SIZE) {
104 return 0;
105 }
106
107 /* Validate the length of size */
108 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
109 return 0;
110 }
111
112 char* ch = (char *)malloc(size + 1);
113 if (ch == nullptr) {
114 return 0;
115 }
116
117 (void)memset_s(ch, size + 1, 0x00, size + 1);
118 if (memcpy_s(ch, size, data, size) != EOK) {
119 free(ch);
120 ch = nullptr;
121 return 0;
122 }
123
124 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
125 free(ch);
126 ch = nullptr;
127 return 0;
128 }
129
130