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 if (size >= sizeof(bool)) {
61 bundleInfo.allToBackup = *(reinterpret_cast<const bool*>(data));
62 }
63
64 if (size >= sizeof(int64_t)) {
65 bundleInfo.versionCode = *(reinterpret_cast<const int64_t*>(data));
66 }
67
68 if (size >= sizeof(int64_t)) {
69 bundleInfo.spaceOccupied = *(reinterpret_cast<const int64_t*>(data));
70 }
71 info.push_back(bundleInfo);
72 }
73 }
74
SvcRestoreDepsManagerFuzzTest(const uint8_t * data,size_t size)75 bool SvcRestoreDepsManagerFuzzTest(const uint8_t *data, size_t size)
76 {
77 vector<BJsonEntityCaps::BundleInfo> bundleInfos;
78 RestoreTypeEnum restoreType = RestoreTypeEnum::RESTORE_DATA_WAIT_SEND;
79 if (size >= sizeof(RestoreTypeEnum)) {
80 restoreType = *(reinterpret_cast<const RestoreTypeEnum*>(data));
81 }
82 SvcRestoreDepsManager::GetInstance().GetRestoreBundleNames(bundleInfos, restoreType);
83 GetInfo(data, size, bundleInfos);
84
85 BJsonEntityCaps::BundleInfo bundleInfo;
86 bundleInfo.name = string(reinterpret_cast<const char*>(data), size);
87 bundleInfos.push_back(bundleInfo);
88
89 SvcRestoreDepsManager::GetInstance().GetRestoreBundleNames(bundleInfos, restoreType);
90 SvcRestoreDepsManager::GetInstance().GetRestoreBundleMap();
91
92 size_t pos = size >> 1;
93 string bundleName(string(reinterpret_cast<const char*>(data), pos));
94 string fileName(string(reinterpret_cast<const char*>(data + pos), size - pos));
95 SvcRestoreDepsManager::GetInstance().AddRestoredBundles(bundleName);
96 SvcRestoreDepsManager::GetInstance().GetAllBundles();
97
98 SvcRestoreDepsManager::GetInstance().UpdateToRestoreBundleMap(bundleName, fileName);
99 SvcRestoreDepsManager::GetInstance().UpdateToRestoreBundleMap(fileName, bundleName);
100 SvcRestoreDepsManager::GetInstance().IsAllBundlesRestored();
101
102 SvcRestoreDepsManager::GetInstance().depsMap_.clear();
103 SvcRestoreDepsManager::GetInstance().allBundles_.clear();
104 SvcRestoreDepsManager::GetInstance().toRestoreBundleMap_.clear();
105 SvcRestoreDepsManager::GetInstance().restoredBundles_.clear();
106
107 return true;
108 }
109 } // namespace OHOS
110
111 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)112 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
113 {
114 /* Run your code on data */
115 if (data == nullptr) {
116 return 0;
117 }
118
119 OHOS::SvcRestoreDepsManagerFuzzTest(data, size);
120 return 0;
121 }