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
43 namespace OHOS {
44 namespace AudioStandard {
45 using namespace std;
46
47 static const uint8_t* RAW_DATA = nullptr;
48 static size_t g_dataSize = 0;
49 static size_t g_pos;
50 const size_t THRESHOLD = 10;
51 const uint8_t TESTSIZE = 2;
52 static const std::time_t AUDIO_SESSION_TIME_OUT_DURATION_TEST_S = 3;
53
54 typedef void (*TestFuncs)();
55
56 class AudioPolicyStateMonitorCallbackMocker : public AudioPolicyStateMonitorCallback {
57 public:
OnTimeOut()58 void OnTimeOut() override {}
59 };
60
61 template<class T>
GetData()62 T GetData()
63 {
64 T object {};
65 size_t objectSize = sizeof(object);
66 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
67 return object;
68 }
69 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
70 if (ret != EOK) {
71 return {};
72 }
73 g_pos += objectSize;
74 return object;
75 }
76
77 template<class T>
GetArrLength(T & arr)78 uint32_t GetArrLength(T& arr)
79 {
80 if (arr == nullptr) {
81 AUDIO_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
82 return 0;
83 }
84 return sizeof(arr) / sizeof(arr[0]);
85 }
86
UnRegisterCallbackFuzzTest()87 void UnRegisterCallbackFuzzTest()
88 {
89 const shared_ptr<AudioPolicyStateMonitor> g_audioPolicyStateMonitor =
90 DelayedSingleton<AudioPolicyStateMonitor>::GetInstance();
91 auto cb = std::make_shared<AudioPolicyStateMonitorCallbackMocker>();
92 int32_t callbackTypeCount = static_cast<int32_t>(CallbackType::REPEAT) + 1;
93 CallbackType callbackType = static_cast<CallbackType>(GetData<uint8_t>() % callbackTypeCount);
94 int32_t cbId = g_audioPolicyStateMonitor->RegisterCallback(
95 cb,
96 AUDIO_SESSION_TIME_OUT_DURATION_TEST_S,
97 callbackType);
98 g_audioPolicyStateMonitor->UnRegisterCallback(cbId);
99 }
100
FreeCbIdFuzzTest()101 void FreeCbIdFuzzTest()
102 {
103 auto audioPolicyStateMonitor = std::make_shared<AudioPolicyStateMonitor>();
104 int32_t cbId = GetData<int32_t>();
105 audioPolicyStateMonitor->FreeCbId(cbId);
106 }
107
108 TestFuncs g_testFuncs[TESTSIZE] = {
109 UnRegisterCallbackFuzzTest,
110 FreeCbIdFuzzTest,
111 };
112
FuzzTest(const uint8_t * rawData,size_t size)113 bool FuzzTest(const uint8_t* rawData, size_t size)
114 {
115 if (rawData == nullptr) {
116 return false;
117 }
118
119 // initialize data
120 RAW_DATA = rawData;
121 g_dataSize = size;
122 g_pos = 0;
123
124 uint32_t code = GetData<uint32_t>();
125 uint32_t len = GetArrLength(g_testFuncs);
126 if (len > 0) {
127 g_testFuncs[code % len]();
128 } else {
129 AUDIO_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
130 }
131
132 return true;
133 }
134 } // namespace AudioStandard
135 } // namesapce OHOS
136
137 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)138 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
139 {
140 if (size < OHOS::AudioStandard::THRESHOLD) {
141 return 0;
142 }
143
144 OHOS::AudioStandard::FuzzTest(data, size);
145 return 0;
146 }
147