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 #define private public
16 #include <cstddef>
17 #include <cstdint>
18
19 #include "securec.h"
20 #include "bundle_clone_installer.h"
21 #include "bundle_installer.h"
22 #include "bundle_constants.h"
23 #include "bundle_mgr_service.h"
24 #include "bundlecloneinstaller_fuzzer.h"
25
26 using namespace OHOS::AppExecFwk;
27 using OHOS::DelayedSingleton;
28
29 namespace OHOS {
30 namespace {
31 constexpr int INPUT_ZERO = 0;
32 constexpr int INPUT_ONE = 1;
33 constexpr int INPUT_TWO = 2;
34 constexpr int INPUT_THREE = 3;
35 constexpr size_t FOO_MAX_LEN = 1024;
36 constexpr size_t U32_AT_SIZE = 4;
37 constexpr size_t OFFSET_ZERO = 24;
38 constexpr size_t OFFSET_ONE = 16;
39 constexpr size_t OFFSET_TWO = 8;
40 constexpr int32_t UID = 3024;
41 }
42
SetBundleDataMgr()43 void SetBundleDataMgr()
44 {
45 DelayedSingleton<BundleMgrService>::GetInstance()->dataMgr_ = std::make_shared<AppExecFwk::BundleDataMgr>();
46 }
47
GetU32Data(const char * ptr)48 uint32_t GetU32Data(const char* ptr)
49 {
50 // convert fuzz input data to an integer
51 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
52 ptr[INPUT_THREE];
53 }
54
DoSomethingInterestingWithMyAPI(const char * data,size_t size)55 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
56 {
57 BundleCloneInstaller bundleCloneInstall;
58
59 std::string bundleName(data, size);
60 InnerBundleInfo info;
61 int32_t userId = static_cast<int32_t>(GetU32Data(data));
62 int32_t appIndex = static_cast<int32_t>(GetU32Data(data));
63
64 SetBundleDataMgr();
65 bundleCloneInstall.InstallCloneApp(bundleName, userId, appIndex);
66 bundleCloneInstall.UninstallCloneApp(bundleName, userId, appIndex);
67 bundleCloneInstall.UninstallAllCloneApps(bundleName, userId);
68
69 bundleCloneInstall.ProcessCloneBundleInstall(bundleName, userId, appIndex);
70 bundleCloneInstall.ProcessCloneBundleUninstall(bundleName, userId, appIndex);
71 bundleCloneInstall.ResetInstallProperties();
72
73 bundleCloneInstall.CreateCloneDataDir(info, userId, UID, appIndex);
74 bundleCloneInstall.RemoveCloneDataDir(bundleName, userId, appIndex);
75 bundleCloneInstall.GetDataMgr();
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 /* Validate the length of size */
89 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
90 return 0;
91 }
92
93 char* ch = (char *)malloc(size + 1);
94 if (ch == nullptr) {
95 std::cout << "malloc failed." << std::endl;
96 return 0;
97 }
98
99 (void)memset_s(ch, size + 1, 0x00, size + 1);
100 if (memcpy_s(ch, size + 1, data, size) != EOK) {
101 std::cout << "copy failed." << std::endl;
102 free(ch);
103 ch = nullptr;
104 return 0;
105 }
106
107 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
108 free(ch);
109 ch = nullptr;
110 return 0;
111 }