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 "hitrace_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <string>
21 #include <iostream>
22 #include <vector>
23
24 #include "hitrace_fuzztest_common.h"
25
26 namespace OHOS {
27 namespace HiviewDFX {
28 namespace Hitrace {
HitraceCommonTest(const uint8_t* data, size_t size)29 void HitraceCommonTest(const uint8_t* data, size_t size)
30 {
31 int bufferSz = 0;
32 uint32_t duration = 0;
33 uint64_t traceTags = 0;
34 if (size < sizeof(bufferSz) + sizeof(duration) + sizeof(traceTags)) {
35 return;
36 }
37 StreamToValueInfo(data, bufferSz);
38 bufferSz += 256; // 256 : min trace buffer size
39 StreamToValueInfo(data, duration);
40 StreamToValueInfo(data, traceTags);
41 duration = duration > 10 ? 10 : duration; // 10 : max duration
42 std::string hitraceCmd = "hitrace -b " + std::to_string(bufferSz) + " -t " + std::to_string(duration);
43 std::string hitraceTags = " sched freq binder idle disk";
44 GenerateTagStr(traceTags, hitraceTags);
45 std::string outputCmd = " -o /data/local/tmp/HitraceCommonTest_fuzz.ftrace";
46 std::cout << hitraceCmd << hitraceTags << outputCmd << std::endl;
47 system((hitraceCmd + hitraceTags + outputCmd).c_str());
48 }
49
HitraceRecordTest(const uint8_t* data, size_t size)50 void HitraceRecordTest(const uint8_t* data, size_t size)
51 {
52 int bufferSz = 0;
53 bool isRaw = false;
54 int recordCmdRand = 0;
55 uint64_t traceTags = 0;
56 if (size < sizeof(bufferSz) + sizeof(isRaw) + sizeof(recordCmdRand) + sizeof(traceTags)) {
57 return;
58 }
59 StreamToValueInfo(data, bufferSz);
60 bufferSz += 256; // 256 : min trace buffer size
61 StreamToValueInfo(data, isRaw);
62 StreamToValueInfo(data, recordCmdRand);
63 StreamToValueInfo(data, traceTags);
64 const std::vector<std::string> recordCmdList = {
65 "hitrace --trace_begin",
66 "hitrace --trace_dump",
67 "hitrace --trace_finish",
68 "hitrace --trace_finish_nodump"
69 };
70 std::string hitraceBuffer = " -b " + std::to_string(bufferSz);
71 std::string hitraceTags = " sched freq binder idle disk";
72 GenerateTagStr(traceTags, hitraceTags);
73 std::string outputCmd = " -o /data/local/tmp/HitraceCommonTest_fuzz.ftrace";
74 std::string testCmd = recordCmdList[recordCmdRand % recordCmdList.size()] + hitraceBuffer + hitraceTags + outputCmd;
75 std::cout << testCmd << std::endl;
76 system(testCmd.c_str());
77 }
78
HitracesSnapshotTest(const uint8_t* data, size_t size)79 void HitracesSnapshotTest(const uint8_t* data, size_t size)
80 {
81 int snapshotCmdRand = 0;
82 if (size < sizeof(snapshotCmdRand)) {
83 return;
84 }
85 StreamToValueInfo(data, snapshotCmdRand);
86 const std::vector<std::string> snapshotCmdList = {
87 "hitrace --start_bgsrv",
88 "hitrace --dump_bgsrv",
89 "hitrace --stop_bgsrv"
90 };
91 system(snapshotCmdList[snapshotCmdRand % snapshotCmdList.size()].c_str());
92 }
93 } // namespace Hitrace
94 } // namespace HiviewDFX
95 } // namespace OHOS
96
97 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)98 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
99 {
100 if (data == nullptr || size == 0) {
101 return 0;
102 }
103
104 /* Run your code on data */
105 OHOS::HiviewDFX::Hitrace::HitraceCommonTest(data, size);
106 OHOS::HiviewDFX::Hitrace::HitraceRecordTest(data, size);
107 OHOS::HiviewDFX::Hitrace::HitracesSnapshotTest(data, size);
108 return 0;
109 }
110