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 "formmgradapterthree_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_mgr_adapter.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 FormMgrAdapter formMgrAdapter;
42 int64_t matchedFormId = static_cast<int64_t>(GetU32Data(data));
43 FormRecord formRecord;
44 std::map<std::string, std::vector<int64_t>> eventMaps;
45 std::string bundleName(data, size);
46 std::vector<int64_t> matchedFormIds;
47 matchedFormIds.emplace_back(matchedFormId);
48 eventMaps.emplace(bundleName, matchedFormIds);
49 formMgrAdapter.CreateHandleEventMap(matchedFormId, formRecord, eventMaps);
50 sptr<IRemoteObject> callerToken = nullptr;
51 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
52 formMgrAdapter.UpdateProviderInfoToHost(matchedFormId, callerToken, formVisibleType, formRecord);
53 std::vector<int64_t> formIds;
54 formIds.emplace_back(matchedFormId);
55 int32_t numFormsDeleted = static_cast<int32_t>(GetU32Data(data));
56 formMgrAdapter.DeleteInvalidForms(formIds, callerToken, numFormsDeleted);
57 std::string abilityName(data, size);
58 Want want;
59 std::string provider(data, size);
60 formMgrAdapter.AcquireFormStateCheck(bundleName, abilityName, want, provider);
61 FormStateInfo stateInfo;
62 formMgrAdapter.AcquireFormState(want, callerToken, stateInfo);
63 bool isVisible = *data % ENABLE;
64 formMgrAdapter.NotifyFormsVisible(formIds, isVisible, callerToken);
65 bool isEnableUpdate = *data % ENABLE;
66 formMgrAdapter.NotifyFormsEnableUpdate(formIds, isEnableUpdate, callerToken);
67 FormInfo formInfo;
68 std::vector<FormInfo> formInfos;
69 formInfos.emplace_back(formInfo);
70 formMgrAdapter.GetFormsInfoByApp(bundleName, formInfos);
71 std::string moduleName(data, size);
72 formMgrAdapter.GetFormsInfoByModule(bundleName, moduleName, formInfos);
73 return true;
74 }
75 }
76
77 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)78 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
79 {
80 /* Run your code on data */
81 if (data == nullptr) {
82 return 0;
83 }
84
85 if (size < OHOS::U32_AT_SIZE) {
86 return 0;
87 }
88
89 /* Validate the length of size */
90 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
91 return 0;
92 }
93
94 char* ch = (char *)malloc(size + 1);
95 if (ch == nullptr) {
96 return 0;
97 }
98
99 (void)memset_s(ch, size + 1, 0x00, size + 1);
100 if (memcpy_s(ch, size, data, size) != EOK) {
101 free(ch);
102 ch = nullptr;
103 return 0;
104 }
105
106 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
107 free(ch);
108 ch = nullptr;
109 return 0;
110 }
111
112