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 "formmgradapter_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 formId = static_cast<int64_t>(GetU32Data(data));
43 Want want;
44 sptr<IRemoteObject> callerToken = nullptr;
45 FormJsInfo formInfo;
46 formMgrAdapter.AddForm(formId, want, callerToken, formInfo);
47 formMgrAdapter.DeleteForm(formId, callerToken);
48 bool delCache = *data % ENABLE;
49 formMgrAdapter.ReleaseForm(formId, callerToken, delCache);
50 formMgrAdapter.HandleReleaseForm(formId, callerToken);
51 formMgrAdapter.HandleDeleteForm(formId, callerToken);
52 formMgrAdapter.HandleDeleteTempForm(formId, callerToken);
53 FormRecord dbRecord;
54 int uid = static_cast<int>(GetU32Data(data));
55 formMgrAdapter.HandleDeleteFormCache(dbRecord, uid, formId);
56 std::string bundleName(data, size);
57 FormProviderData formProviderData;
58 formMgrAdapter.UpdateForm(formId, uid, formProviderData);
59 formMgrAdapter.RequestForm(formId, callerToken, want);
60 std::vector<int64_t> formIds;
61 formIds.emplace_back(formId);
62 int32_t formVisibleType = static_cast<int32_t>(GetU32Data(data));
63 formMgrAdapter.NotifyWhetherVisibleForms(formIds, callerToken, formVisibleType);
64 formMgrAdapter.CastTempForm(formId, callerToken);
65 formMgrAdapter.HandleCastTempForm(formId, dbRecord);
66 FormItemInfo formConfigInfo;
67 formMgrAdapter.GetFormConfigInfo(want, formConfigInfo);
68 WantParams wantParams;
69 formMgrAdapter.AllotFormById(formConfigInfo, callerToken, wantParams, formInfo);
70 return true;
71 }
72 }
73
74 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)75 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
76 {
77 /* Run your code on data */
78 if (data == nullptr) {
79 return 0;
80 }
81
82 if (size < OHOS::U32_AT_SIZE) {
83 return 0;
84 }
85
86 /* Validate the length of size */
87 if (size == 0 || size > OHOS::FOO_MAX_LEN) {
88 return 0;
89 }
90
91 char* ch = static_cast<char*>(malloc(size + 1));
92 if (ch == nullptr) {
93 return 0;
94 }
95
96 (void)memset_s(ch, size + 1, 0x00, size + 1);
97 if (memcpy_s(ch, size + 1, data, size) != EOK) {
98 free(ch);
99 ch = nullptr;
100 return 0;
101 }
102
103 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
104 free(ch);
105 ch = nullptr;
106 return 0;
107 }
108
109