1 /*
2 * Copyright (c) 2021-2022 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 /* This files contains faultlog fuzzer test modules. */
17
18 #include "faultloggerd_fuzzer.h"
19
20 #include <cstddef>
21 #include <cstdint>
22 #include <iostream>
23 #include "dfx_dump_catcher.h"
24 #include "securec.h"
25
26 using namespace OHOS::HiviewDFX;
27 using namespace std;
28
29 static const int PID_SIZE = 4;
30 static const int RAND_BUF_LIMIT = 9;
31
32 namespace OHOS {
DumpStackTraceTest(const uint8_t * data,size_t size)33 bool DumpStackTraceTest(const uint8_t* data, size_t size)
34 {
35 if (size < RAND_BUF_LIMIT) {
36 return true;
37 }
38 shared_ptr<DfxDumpCatcher> catcher = make_shared<DfxDumpCatcher>();
39 string msg;
40 int pid[1];
41 int tid[1];
42 errno_t err = memcpy_s(pid, sizeof(pid), data, PID_SIZE);
43 if (err != EOK) {
44 cout << "DumpStackTraceTest :: memcpy_s pid failed" << endl;
45 }
46 data += PID_SIZE;
47 err = memcpy_s(tid, sizeof(tid), data, PID_SIZE);
48 if (err != EOK) {
49 cout << "DumpStackTraceTest :: memcpy_s tid failed" << endl;
50 }
51 data += PID_SIZE;
52 char invalidOption = *data;
53 cout << "pid = " << pid[0] << " tid = " << tid[0] << " invalidOpt = " << invalidOption << endl;
54
55 if (catcher->DumpCatch(pid[0], tid[0], msg)) {
56 cout << msg << endl;
57 } else {
58 cout << "DumpStackTraceTest :: dumpcatch failed." << endl;
59 }
60
61 string processdumpCmd = "dumpcatcher -p " + to_string(pid[0]) + " -t " + to_string(tid[0]);
62 system(processdumpCmd.c_str());
63
64 string processdumpInvalidCmd = "dumpcatcher -" + to_string(invalidOption) + " -p " +
65 to_string(pid[0]) + " -t " + to_string(tid[0]);
66 system(processdumpInvalidCmd.c_str());
67
68 return true;
69 }
70 } // namespace OHOS
71
72 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)73 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
74 {
75 /* Run your code on data */
76 OHOS::DumpStackTraceTest(data, size);
77 return 0;
78 }
79