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 "formmgradaptertwo_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_mgr/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 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 FormMgrAdapter formMgrAdapter;
41 Want want;
42 formMgrAdapter.RequestPublishFormToHost(want);
43 bool withFormBindingData = *data % ENABLE;
44 std::unique_ptr<FormProviderData> formBindingData = nullptr;
45 int64_t formId = static_cast<int64_t>(GetU32Data(data));
46 formMgrAdapter.RequestPublishForm(want, withFormBindingData, formBindingData, formId);
47 Want formProviderWant;
48 formMgrAdapter.CheckAddRequestPublishForm(want, formProviderWant);
49 FormItemInfo formItemInfo;
50 sptr<IRemoteObject> callerToken = nullptr;
51 FormJsInfo formJsInfo;
52 formMgrAdapter.AddRequestPublishForm(formItemInfo, want, callerToken, formJsInfo);
53 std::string bundleName(data, size);
54 formMgrAdapter.IsUpdateValid(formId, bundleName);
55 std::vector<int64_t> formIDs;
56 formIDs.emplace_back(formId);
57 formMgrAdapter.EnableUpdateForm(formIDs, callerToken);
58 formMgrAdapter.DisableUpdateForm(formIDs, callerToken);
59 formMgrAdapter.MessageEvent(formId, want, callerToken);
60 bool flag = *data % ENABLE;
61 bool isOnlyEnableUpdate = *data % ENABLE;
62 formMgrAdapter.HandleUpdateFormFlag(formIDs, callerToken, flag, isOnlyEnableUpdate);
63 FormRecord record;
64 formMgrAdapter.IsFormCached(record);
65 return true;
66 }
67 }
68
69 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)70 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
71 {
72 /* Run your code on data */
73 if (data == nullptr) {
74 return 0;
75 }
76
77 if (size < OHOS::U32_AT_SIZE) {
78 return 0;
79 }
80
81 char* ch = reinterpret_cast<char *>(malloc(size + 1));
82 if (ch == nullptr) {
83 return 0;
84 }
85
86 (void)memset_s(ch, size + 1, 0x00, size + 1);
87 if (memcpy_s(ch, size + 1, data, size) != EOK) {
88 free(ch);
89 ch = nullptr;
90 return 0;
91 }
92
93 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
94 free(ch);
95 ch = nullptr;
96 return 0;
97 }
98
99