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 "formdatamgrfour_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "form_data_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 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 FormDataMgr formDataMgr;
41 int32_t userId = static_cast<int32_t>(GetU32Data(data));
42 int64_t formId = static_cast<int64_t>(GetU32Data(data));
43 std::vector<int64_t> removedFormIds;
44 removedFormIds.emplace_back(formId);
45 formDataMgr.DeleteFormsByUserId(userId, removedFormIds);
46 formDataMgr.ClearFormRecords();
47 int32_t callingUid = static_cast<int32_t>(GetU32Data(data));
48 std::set<int64_t> matchedFormIds;
49 matchedFormIds.insert(formId);
50 std::string bundleName(data, size);
51 std::string abilityName(data, size);
52 FormIdKey formIdKey(bundleName, abilityName);
53 std::map<FormIdKey, std::set<int64_t>> noHostTempFormsMap;
54 noHostTempFormsMap.emplace(formIdKey, matchedFormIds);
55 std::map<int64_t, bool> foundFormsMap;
56 bool flag = *data % ENABLE;
57 foundFormsMap.emplace(formId, flag);
58 formDataMgr.GetNoHostInvalidTempForms(userId, callingUid, matchedFormIds, noHostTempFormsMap, foundFormsMap);
59 formDataMgr.BatchDeleteNoHostTempForms(callingUid, noHostTempFormsMap, foundFormsMap);
60 formDataMgr.DeleteInvalidTempForms(userId, callingUid, matchedFormIds, foundFormsMap);
61 formDataMgr.DeleteInvalidPublishForms(userId, bundleName, matchedFormIds);
62 formDataMgr.ClearHostDataByInvalidForms(callingUid, foundFormsMap);
63 Want want;
64 std::unique_ptr<FormProviderData> formProviderData = nullptr;
65 formDataMgr.AddRequestPublishFormInfo(formId, want, formProviderData);
66 formDataMgr.RemoveRequestPublishFormInfo(formId);
67 formDataMgr.IsRequestPublishForm(formId);
68 formDataMgr.GetRequestPublishFormInfo(formId, want, formProviderData);
69 FormRecord record;
70 BundlePackInfo bundlePackInfo;
71 AbilityFormInfo abilityFormInfo;
72 formDataMgr.GetPackageForm(record, bundlePackInfo, abilityFormInfo);
73 formDataMgr.IsSameForm(record, abilityFormInfo);
74 bool isNeedFreeInstall = *data % ENABLE;
75 formDataMgr.SetRecordNeedFreeInstall(formId, isNeedFreeInstall);
76 return true;
77 }
78 }
79
80 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)81 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
82 {
83 /* Run your code on data */
84 if (data == nullptr) {
85 return 0;
86 }
87
88 if (size < OHOS::U32_AT_SIZE) {
89 return 0;
90 }
91
92 char* ch = static_cast<char*>(malloc(size + 1));
93 if (ch == nullptr) {
94 return 0;
95 }
96
97 (void)memset_s(ch, size + 1, 0x00, size + 1);
98 if (memcpy_s(ch, size + 1, data, size) != EOK) {
99 free(ch);
100 ch = nullptr;
101 return 0;
102 }
103
104 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
105 free(ch);
106 ch = nullptr;
107 return 0;
108 }
109
110