1 /*
2 * Copyright (c) 2024 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 "svcrestoredepsmanager_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <cstring>
21 #include "securec.h"
22
23 #include "module_ipc/svc_restore_deps_manager.h"
24
25 using namespace OHOS::FileManagement::Backup;
26 using namespace std;
27
28 namespace OHOS {
29 constexpr size_t U32_AT_SIZE = 3;
30 constexpr int SPLITE_SIZE = 5;
31 constexpr size_t REDUNDENT_SIZE = 2;
32 constexpr size_t DISTINCT_SIZE = 2;
GetInfo(const uint8_t * data,size_t size,vector<BJsonEntityCaps::BundleInfo> & info)33 void GetInfo(const uint8_t *data, size_t size, vector<BJsonEntityCaps::BundleInfo> &info)
34 {
35 size_t base = size;
36 if (size >= U32_AT_SIZE) {
37 base = (size + 1) / REDUNDENT_SIZE;
38 }
39
40 for (size_t i = 0; i < size; i++) {
41 BJsonEntityCaps::BundleInfo bundleInfo;
42 int len = size / SPLITE_SIZE;
43 int pos = 0;
44 bundleInfo.name = string(reinterpret_cast<const char*>(data + pos), len) + to_string(i % base);
45 pos += len;
46 bundleInfo.versionName = string(reinterpret_cast<const char*>(data + pos), len) + to_string(i);
47 pos += len;
48 bundleInfo.extensionName = string(reinterpret_cast<const char*>(data + pos), len) + to_string(i);
49 pos += len;
50
51 if (i % DISTINCT_SIZE == 0) {
52 bundleInfo.restoreDeps = string(reinterpret_cast<const char*>(data + pos), len) + to_string(i);
53 } else {
54 bundleInfo.restoreDeps = string(reinterpret_cast<const char*>(data + pos), len) + "," + to_string(i);
55 }
56
57 pos += len;
58 bundleInfo.supportScene = string(reinterpret_cast<const char*>(data + pos), len) + to_string(i);
59
60 pos += len;
61 if (size >= pos + sizeof(bool)) {
62 bundleInfo.allToBackup = *(reinterpret_cast<const bool*>(data + pos));
63 }
64
65 pos += sizeof(bool);
66 if (size >= pos + sizeof(int64_t)) {
67 bundleInfo.versionCode = *(reinterpret_cast<const int64_t*>(data + pos));
68 }
69
70 pos += sizeof(int64_t);
71 if (size >= pos + sizeof(int64_t)) {
72 bundleInfo.spaceOccupied = *(reinterpret_cast<const int64_t*>(data + pos));
73 }
74 info.push_back(bundleInfo);
75 }
76 }
77
SvcRestoreDepsManagerFuzzTest(const uint8_t * data,size_t size)78 bool SvcRestoreDepsManagerFuzzTest(const uint8_t *data, size_t size)
79 {
80 if (data == nullptr) {
81 return 0;
82 }
83
84 vector<BJsonEntityCaps::BundleInfo> bundleInfos;
85 RestoreTypeEnum restoreType = RestoreTypeEnum::RESTORE_DATA_WAIT_SEND;
86 if (size >= sizeof(RestoreTypeEnum)) {
87 restoreType = *(reinterpret_cast<const RestoreTypeEnum*>(data));
88 }
89 SvcRestoreDepsManager::GetInstance().GetRestoreBundleNames(bundleInfos, restoreType);
90 GetInfo(data, size, bundleInfos);
91
92 BJsonEntityCaps::BundleInfo bundleInfo;
93 bundleInfo.name = string(reinterpret_cast<const char*>(data), size);
94 bundleInfos.push_back(bundleInfo);
95
96 SvcRestoreDepsManager::GetInstance().GetRestoreBundleNames(bundleInfos, restoreType);
97 SvcRestoreDepsManager::GetInstance().GetRestoreBundleMap();
98
99 size_t pos = size >> 1;
100 string bundleName(string(reinterpret_cast<const char*>(data), pos));
101 string fileName(string(reinterpret_cast<const char*>(data + pos), size - pos));
102 SvcRestoreDepsManager::GetInstance().AddRestoredBundles(bundleName);
103 SvcRestoreDepsManager::GetInstance().GetAllBundles();
104
105 SvcRestoreDepsManager::GetInstance().UpdateToRestoreBundleMap(bundleName, fileName);
106 SvcRestoreDepsManager::GetInstance().UpdateToRestoreBundleMap(fileName, bundleName);
107 SvcRestoreDepsManager::GetInstance().IsAllBundlesRestored();
108
109 SvcRestoreDepsManager::GetInstance().depsMap_.clear();
110 SvcRestoreDepsManager::GetInstance().allBundles_.clear();
111 SvcRestoreDepsManager::GetInstance().toRestoreBundleMap_.clear();
112 SvcRestoreDepsManager::GetInstance().restoredBundles_.clear();
113
114 return true;
115 }
116 } // namespace OHOS
117
118 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)119 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
120 {
121 /* Run your code on data */
122 OHOS::SvcRestoreDepsManagerFuzzTest(data, size);
123 return 0;
124 }