1 /*
2 * Copyright (c) 2025 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 <iostream>
17 #include <cstddef>
18 #include <cstdint>
19 #include <cstring>
20 #include "audio_info.h"
21 #include "audio_policy_server.h"
22 #include "audio_policy_service.h"
23 #include "audio_device_info.h"
24 #include "audio_utils.h"
25 #include "accesstoken_kit.h"
26 #include "nativetoken_kit.h"
27 #include "token_setproc.h"
28 #include "access_token.h"
29 #include "audio_channel_blend.h"
30 #include "volume_ramp.h"
31 #include "audio_speed.h"
32
33 #include "audio_policy_utils.h"
34 #include "audio_stream_descriptor.h"
35 #include "audio_limiter_manager.h"
36 #include "dfx_msg_manager.h"
37
38 #include "audio_source_clock.h"
39 #include "capturer_clock_manager.h"
40 #include "hpae_policy_manager.h"
41 #include "audio_policy_state_monitor.h"
42 #include "audio_device_info.h"
43 #include "audio_server.h"
44 #include "audio_effect_volume.h"
45 #include "futex_tool.h"
46 #include "format_converter.h"
47 #include "audio_dump_pcm.h"
48 #include "audio_dump_pcm_private.h"
49 #include "audio_zone_service.h"
50 #include "audio_xml_parser.h"
51
52 namespace OHOS {
53 namespace AudioStandard {
54 using namespace std;
55
56 static const uint8_t* RAW_DATA = nullptr;
57 static size_t g_dataSize = 0;
58 static size_t g_pos;
59 const size_t THRESHOLD = 10;
60 const uint8_t TESTSIZE = 3;
61
62 typedef void (*TestFuncs)();
63
64 template<class T>
GetData()65 T GetData()
66 {
67 T object {};
68 size_t objectSize = sizeof(object);
69 if (g_dataSize < g_pos) {
70 return object;
71 }
72 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
73 return object;
74 }
75 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
76 if (ret != EOK) {
77 return {};
78 }
79 g_pos += objectSize;
80 return object;
81 }
82
83 template<class T>
GetArrLength(T & arr)84 uint32_t GetArrLength(T& arr)
85 {
86 if (arr == nullptr) {
87 AUDIO_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
88 return 0;
89 }
90 return sizeof(arr) / sizeof(arr[0]);
91 }
92
HasPropFuzzTest()93 void HasPropFuzzTest()
94 {
95 shared_ptr<AudioXmlNode> ptr = AudioXmlNode::Create();
96 if (ptr == nullptr) {
97 return;
98 }
99 ptr->HasProp("abc");
100 }
101
GetContentFuzzTest()102 void GetContentFuzzTest()
103 {
104 shared_ptr<AudioXmlNode> ptr = AudioXmlNode::Create();
105 if (ptr == nullptr) {
106 return;
107 }
108 std::string result = "abc";
109 ptr->GetContent(result);
110 }
111
OperatorFuzzTest()112 void OperatorFuzzTest()
113 {
114 shared_ptr<AudioXmlNode> ptr1 = AudioXmlNode::Create();
115 shared_ptr<AudioXmlNode> ptr2 = ptr1;
116 }
117
118 TestFuncs g_testFuncs[TESTSIZE] = {
119 HasPropFuzzTest,
120 GetContentFuzzTest,
121 OperatorFuzzTest,
122 };
123
FuzzTest(const uint8_t * rawData,size_t size)124 void FuzzTest(const uint8_t* rawData, size_t size)
125 {
126 if (rawData == nullptr) {
127 return;
128 }
129
130 // initialize data
131 RAW_DATA = rawData;
132 g_dataSize = size;
133 g_pos = 0;
134
135 uint32_t code = GetData<uint32_t>();
136 uint32_t len = GetArrLength(g_testFuncs);
137 if (len > 0) {
138 g_testFuncs[code % len]();
139 } else {
140 AUDIO_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
141 }
142
143 return;
144 }
145 } // namespace AudioStandard
146 } // namesapce OHOS
147
148 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)149 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
150 {
151 if (size < OHOS::AudioStandard::THRESHOLD) {
152 return 0;
153 }
154
155 OHOS::AudioStandard::FuzzTest(data, size);
156 return 0;
157 }
158