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
37 namespace OHOS {
38 namespace AudioStandard {
39 using namespace std;
40
41 static const uint8_t* RAW_DATA = nullptr;
42 static size_t g_dataSize = 0;
43 static size_t g_pos;
44 const size_t THRESHOLD = 10;
45 const uint8_t TESTSIZE = 5;
46 const int32_t NUM_2 = 2;
47 const int32_t TEST_MAX_REQUEST = 7680;
48
49 typedef void (*TestFuncs)();
50
51 template<class T>
GetData()52 T GetData()
53 {
54 T object {};
55 size_t objectSize = sizeof(object);
56 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
57 return object;
58 }
59 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
60 if (ret != EOK) {
61 return {};
62 }
63 g_pos += objectSize;
64 return object;
65 }
66
67 template<class T>
GetArrLength(T & arr)68 uint32_t GetArrLength(T& arr)
69 {
70 if (arr == nullptr) {
71 AUDIO_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
72 return 0;
73 }
74 return sizeof(arr) / sizeof(arr[0]);
75 }
76
SetLimiterConfigFuzzTest()77 void SetLimiterConfigFuzzTest()
78 {
79 AudioLmtManager *limiterManager = AudioLmtManager::GetInstance();
80 int32_t sinkIndex = GetData<uint32_t>();
81 limiterManager->CreateLimiter(sinkIndex);
82 int32_t audioChannel = static_cast<int32_t>(AudioChannel::CHANNEL_16) + 1;
83 int32_t channels = static_cast<AudioChannel>(GetData<uint8_t>() % audioChannel);
84 limiterManager->SetLimiterConfig(sinkIndex, TEST_MAX_REQUEST, SAMPLE_F32LE, SAMPLE_RATE_48000, channels);
85 }
86
ProcessLimiterFuzzTest()87 void ProcessLimiterFuzzTest()
88 {
89 AudioLmtManager *limiterManager = AudioLmtManager::GetInstance();
90 int32_t sinkIndex = GetData<uint32_t>();
91 limiterManager->CreateLimiter(sinkIndex);
92 limiterManager->SetLimiterConfig(sinkIndex, TEST_MAX_REQUEST, SAMPLE_F32LE, SAMPLE_RATE_48000, STEREO);
93 int32_t frameLen = TEST_MAX_REQUEST / SAMPLE_F32LE;
94 std::vector<float> inBufferVector(frameLen, 0);
95 std::vector<float> outBufferVector(frameLen, 0);
96 float *inBuffer = inBufferVector.data();
97 float *outBuffer = outBufferVector.data();
98 int32_t frameLength = GetData<uint32_t>() % NUM_2 == 0 ? frameLen : 0;
99 limiterManager->ProcessLimiter(sinkIndex, frameLength, inBuffer, outBuffer);
100 }
101
ReleaseLimiterFuzzTest()102 void ReleaseLimiterFuzzTest()
103 {
104 AudioLmtManager *limiterManager = AudioLmtManager::GetInstance();
105 int32_t sinkIndex = GetData<uint32_t>();
106 limiterManager->CreateLimiter(sinkIndex);
107 limiterManager->ReleaseLimiter(sinkIndex);
108 limiterManager->ReleaseLimiter(sinkIndex);
109 }
110
GetLatencyFuzzTest()111 void GetLatencyFuzzTest()
112 {
113 AudioLmtManager *limiterManager = AudioLmtManager::GetInstance();
114 int32_t sinkIndex = GetData<uint32_t>();
115 limiterManager->CreateLimiter(sinkIndex);
116 limiterManager->SetLimiterConfig(sinkIndex, TEST_MAX_REQUEST, SAMPLE_F32LE, SAMPLE_RATE_48000, STEREO);
117 limiterManager->GetLatency(sinkIndex);
118 }
119
CreateLimiterFuzzTest()120 void CreateLimiterFuzzTest()
121 {
122 AudioLmtManager *limiterManager = AudioLmtManager::GetInstance();
123 int32_t sinkIndex = GetData<int32_t>();
124 limiterManager->CreateLimiter(sinkIndex);
125 limiterManager->CreateLimiter(sinkIndex);
126 }
127
128 TestFuncs g_testFuncs[TESTSIZE] = {
129 SetLimiterConfigFuzzTest,
130 ProcessLimiterFuzzTest,
131 ReleaseLimiterFuzzTest,
132 GetLatencyFuzzTest,
133 CreateLimiterFuzzTest,
134 };
135
FuzzTest(const uint8_t * rawData,size_t size)136 bool FuzzTest(const uint8_t* rawData, size_t size)
137 {
138 if (rawData == nullptr) {
139 return false;
140 }
141
142 // initialize data
143 RAW_DATA = rawData;
144 g_dataSize = size;
145 g_pos = 0;
146
147 uint32_t code = GetData<uint32_t>();
148 uint32_t len = GetArrLength(g_testFuncs);
149 if (len > 0) {
150 g_testFuncs[code % len]();
151 } else {
152 AUDIO_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
153 }
154
155 return true;
156 }
157 } // namespace AudioStandard
158 } // namesapce OHOS
159
160 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)161 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
162 {
163 if (size < OHOS::AudioStandard::THRESHOLD) {
164 return 0;
165 }
166
167 OHOS::AudioStandard::FuzzTest(data, size);
168 return 0;
169 }
170