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 "quickfixchecker_fuzzer.h"
17 #define private public
18 #include "quick_fix_checker.h"
19 #include "securec.h"
20
21 using namespace OHOS::AppExecFwk;
22 namespace OHOS {
23 constexpr size_t FOO_MAX_LEN = 1024;
24 constexpr size_t U32_AT_SIZE = 4;
25 constexpr size_t MESSAGE_SIZE = 4;
26 constexpr size_t DCAMERA_SHIFT_24 = 24;
27 constexpr size_t DCAMERA_SHIFT_16 = 16;
28 constexpr size_t DCAMERA_SHIFT_8 = 8;
29 const std::string BUNDLE_NAME = "com.example.bmsaccesstoken1";
30 const uint32_t QUICK_FIX_VERSION_CODE = 1;
31 const uint32_t BUNDLE_VERSION_CODE = 1;
32 const std::string QUICK_FIX_VERSION_NAME = "1.0";
33 const std::string BUNDLE_VERSION_NAME = "1.0";
34
GetU32Data(const char * ptr)35 uint32_t GetU32Data(const char* ptr)
36 {
37 return (ptr[0] << DCAMERA_SHIFT_24) | (ptr[1] << DCAMERA_SHIFT_16) | (ptr[2] << DCAMERA_SHIFT_8) | (ptr[3]);
38 }
39
CreateAppQuickFix()40 AppQuickFix CreateAppQuickFix()
41 {
42 AppqfInfo appInfo;
43 appInfo.versionCode = QUICK_FIX_VERSION_CODE;
44 appInfo.versionName = QUICK_FIX_VERSION_NAME;
45 appInfo.type = QuickFixType::PATCH;
46 HqfInfo hqfInfo;
47 hqfInfo.moduleName = "entry";
48 hqfInfo.type = QuickFixType::PATCH;
49 appInfo.hqfInfos.push_back(hqfInfo);
50 AppQuickFix appQuickFix;
51 appQuickFix.bundleName = BUNDLE_NAME;
52 appQuickFix.versionCode = BUNDLE_VERSION_CODE;
53 appQuickFix.versionName = BUNDLE_VERSION_NAME;
54 appQuickFix.deployingAppqfInfo = appInfo;
55 return appQuickFix;
56 }
57
DoSomethingInterestingWithMyAPI(const char * data,size_t size)58 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
59 {
60 QuickFixChecker quickFixChecker;
61 std::vector<std::string> bundlePaths;
62 std::vector<Security::Verify::HapVerifyResult> hapVerifyRes;
63 quickFixChecker.CheckMultipleHqfsSignInfo(bundlePaths, hapVerifyRes);
64 std::unordered_map<std::string, AppQuickFix> infos;
65 AppQuickFix appQuickFix = CreateAppQuickFix();
66 infos.emplace("appQuickFix_1", appQuickFix);
67 quickFixChecker.CheckAppQuickFixInfos(infos);
68 quickFixChecker.CheckMultiNativeSo(infos);
69 Security::Verify::ProvisionInfo provisionInfo;
70 BundleInfo bundleInfo;
71 quickFixChecker.CheckPatchWithInstalledBundle(appQuickFix, bundleInfo, provisionInfo);
72 quickFixChecker.CheckHotReloadWithInstalledBundle(appQuickFix, bundleInfo);
73 quickFixChecker.CheckSignatureInfo(bundleInfo, provisionInfo);
74 quickFixChecker.GetAppDistributionType(Security::Verify::AppDistType::APP_GALLERY);
75 quickFixChecker.CheckCommonWithInstalledBundle(appQuickFix, bundleInfo);
76 quickFixChecker.CheckModuleNameExist(bundleInfo, infos);
77 quickFixChecker.GetAppProvisionType(Security::Verify::ProvisionType::DEBUG);
78 AppqfInfo qfInfo;
79 qfInfo.cpuAbi = "arm";
80 quickFixChecker.CheckPatchNativeSoWithInstalledBundle(bundleInfo, qfInfo);
81 return true;
82 }
83 }
84
85 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)86 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
87 {
88 /* Run your code on data */
89 if (data == nullptr) {
90 return 0;
91 }
92
93 if (size < OHOS::U32_AT_SIZE) {
94 return 0;
95 }
96
97 /* Validate the length of size */
98 if (size > OHOS::FOO_MAX_LEN) {
99 return 0;
100 }
101
102 char* ch = static_cast<char*>(malloc(size + 1));
103 if (ch == nullptr) {
104 return 0;
105 }
106
107 (void)memset_s(ch, size + 1, 0x00, size + 1);
108 if (memcpy_s(ch, size, data, size) != EOK) {
109 free(ch);
110 ch = nullptr;
111 return 0;
112 }
113 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
114 free(ch);
115 ch = nullptr;
116 return 0;
117 }