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_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 Want want;
43 formMgrAdapter.RequestPublishFormToHost(want);
44 bool withFormBindingData = *data % ENABLE;
45 std::unique_ptr<FormProviderData> formBindingData = nullptr;
46 int64_t formId = static_cast<int64_t>(GetU32Data(data));
47 formMgrAdapter.RequestPublishForm(want, withFormBindingData, formBindingData, formId);
48 Want formProviderWant;
49 formMgrAdapter.CheckAddRequestPublishForm(want, formProviderWant);
50 FormItemInfo formItemInfo;
51 sptr<IRemoteObject> callerToken = nullptr;
52 FormJsInfo formJsInfo;
53 formMgrAdapter.AddRequestPublishForm(formItemInfo, want, callerToken, formJsInfo);
54 int64_t nextTime = static_cast<int64_t>(GetU32Data(data));
55 int32_t userId = static_cast<int32_t>(GetU32Data(data));
56 formMgrAdapter.SetNextRefreshTimeLocked(formId, nextTime, userId);
57 std::string bundleName(data, size);
58 formMgrAdapter.IsUpdateValid(formId, bundleName);
59 std::vector<int64_t> formIDs;
60 formIDs.emplace_back(formId);
61 formMgrAdapter.EnableUpdateForm(formIDs, callerToken);
62 formMgrAdapter.DisableUpdateForm(formIDs, callerToken);
63 formMgrAdapter.MessageEvent(formId, want, callerToken);
64 bool flag = *data % ENABLE;
65 bool isOnlyEnableUpdate = *data % ENABLE;
66 formMgrAdapter.HandleUpdateFormFlag(formIDs, callerToken, flag, isOnlyEnableUpdate);
67 FormRecord record;
68 formMgrAdapter.IsFormCached(record);
69 return true;
70 }
71 }
72
73 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)74 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
75 {
76 /* Run your code on data */
77 if (data == nullptr) {
78 return 0;
79 }
80
81 if (size < OHOS::U32_AT_SIZE) {
82 return 0;
83 }
84
85 /* Validate the length of size */
86 if (size > OHOS::FOO_MAX_LEN) {
87 return 0;
88 }
89
90 char* ch = reinterpret_cast<char *>(malloc(size + 1));
91 if (ch == nullptr) {
92 return 0;
93 }
94
95 (void)memset_s(ch, size + 1, 0x00, size + 1);
96 if (memcpy_s(ch, size + 1, data, size) != EOK) {
97 free(ch);
98 ch = nullptr;
99 return 0;
100 }
101
102 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
103 free(ch);
104 ch = nullptr;
105 return 0;
106 }
107
108