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