1 /*
2 * Copyright (c) 2023 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 <cstddef>
17 #include <cstdint>
18 #include <string>
19 #include <vector>
20 #include "faultlogger.h"
21 #include "faultlogger_service_ohos.h"
22 #include "faultlogger_service_fuzzer.h"
23 #include "hiview_platform.h"
24 #include "securec.h"
25 namespace OHOS {
InitHiviewContext()26 static void InitHiviewContext()
27 {
28 HiviewDFX::HiviewPlatform &platform = HiviewDFX::HiviewPlatform::GetInstance();
29 platform.InitEnvironment("/data/test/test_faultlogger_data/hiview_platform_config");
30 }
31
CreateFaultloggerInstance()32 std::shared_ptr<HiviewDFX::Faultlogger> CreateFaultloggerInstance()
33 {
34 static std::unique_ptr<HiviewDFX::HiviewPlatform> platform = std::make_unique<HiviewDFX::HiviewPlatform>();
35 auto plugin = std::make_shared<HiviewDFX::Faultlogger>();
36 plugin->SetName("Faultlogger");
37 plugin->SetHandle(nullptr);
38 plugin->SetHiviewContext(platform.get());
39 plugin->OnLoad();
40 return plugin;
41 }
42
FuzzServiceInterfaceDump(const uint8_t * data,size_t size)43 void FuzzServiceInterfaceDump(const uint8_t* data, size_t size)
44 {
45 InitHiviewContext();
46
47 auto service = CreateFaultloggerInstance();
48 HiviewDFX::FaultloggerServiceOhos serviceOhos;
49 HiviewDFX::FaultloggerServiceOhos::StartService(service.get());
50 if (HiviewDFX::FaultloggerServiceOhos::GetOrSetFaultlogger(nullptr) != service.get()) {
51 printf("FaultloggerServiceOhos start service error.\n");
52 }
53
54 int32_t fd = static_cast<int32_t>(*data);
55 std::vector<std::u16string> args;
56 constexpr int maxLen = 20;
57 char16_t arg[maxLen] = {0};
58 errno_t err = strncpy_s(reinterpret_cast<char*>(arg), sizeof(arg), reinterpret_cast<const char*>(data), size);
59 if (err != EOK) {
60 std::cout << "strncpy_s arg failed" << std::endl;
61 return;
62 }
63 args.push_back(arg);
64
65 (void)serviceOhos.Dump(fd, args);
66 }
67
FuzzServiceInterfaceQuerySelfFaultLog(const uint8_t * data,size_t size)68 void FuzzServiceInterfaceQuerySelfFaultLog(const uint8_t* data, size_t size)
69 {
70 InitHiviewContext();
71
72 auto service = CreateFaultloggerInstance();
73 HiviewDFX::FaultloggerServiceOhos serviceOhos;
74 HiviewDFX::FaultloggerServiceOhos::StartService(service.get());
75 if (HiviewDFX::FaultloggerServiceOhos::GetOrSetFaultlogger(nullptr) != service.get()) {
76 printf("FaultloggerServiceOhos start service error.\n");
77 }
78 int32_t faultType = static_cast<int32_t>(*data);
79 int32_t maxNum = static_cast<int32_t>(*data);
80 (void)serviceOhos.QuerySelfFaultLog(faultType, maxNum);
81 }
82
FuzzFaultloggerServiceInterface(const uint8_t * data,size_t size)83 void FuzzFaultloggerServiceInterface(const uint8_t* data, size_t size)
84 {
85 FuzzServiceInterfaceDump(data, size);
86 FuzzServiceInterfaceQuerySelfFaultLog(data, size);
87 }
88 }
89
90 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)91 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
92 {
93 OHOS::FuzzFaultloggerServiceInterface(data, size);
94 return 0;
95 }
96