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 <iostream>
17 #include <cstddef>
18 #include <cstdint>
19 #include <atomic>
20 #include <thread>
21 #include "audio_policy_server.h"
22 #include "audio_policy_proxy.h"
23 #include "audio_device_info.h"
24 #include "message_parcel.h"
25 #include "accesstoken_kit.h"
26 #include "audio_routing_manager.h"
27 #include "audio_stream_manager.h"
28 #include "nativetoken_kit.h"
29 #include "token_setproc.h"
30 #include "access_token.h"
31 using namespace std;
32
33 namespace OHOS {
34 namespace AudioStandard {
35 const int32_t LIMITSIZE = 4;
36 const std::u16string FORMMGR_INTERFACE_TOKEN = u"IAudioPolicy";
37 const int32_t SYSTEM_ABILITY_ID = 3009;
38 const float FLOAT_VOLUME = 1.0f;
39 const bool RUN_ON_CREATE = false;
40 bool g_hasPermission = false;
41 bool g_hasServerInit = false;
42 static const uint8_t *RAW_DATA = nullptr;
43 static size_t g_dataSize = 0;
44 static size_t g_pos;
45 const size_t THRESHOLD = 10;
46
GetServerPtr()47 AudioPolicyServer *GetServerPtr()
48 {
49 static AudioPolicyServer server(SYSTEM_ABILITY_ID, RUN_ON_CREATE);
50 if (!g_hasServerInit) {
51 server.OnStart();
52 server.OnAddSystemAbility(AUDIO_DISTRIBUTED_SERVICE_ID, "");
53 #ifdef FEATURE_MULTIMODALINPUT_INPUT
54 server.OnAddSystemAbility(MULTIMODAL_INPUT_SERVICE_ID, "");
55 #endif
56 server.OnAddSystemAbility(BLUETOOTH_HOST_SYS_ABILITY_ID, "");
57 server.OnAddSystemAbility(POWER_MANAGER_SERVICE_ID, "");
58 server.OnAddSystemAbility(SUBSYS_ACCOUNT_SYS_ABILITY_ID_BEGIN, "");
59 server.audioPolicyService_.SetDefaultDeviceLoadFlag(true);
60 g_hasServerInit = true;
61 }
62 return &server;
63 }
64
AudioFuzzTestGetPermission()65 void AudioFuzzTestGetPermission()
66 {
67 if (!g_hasPermission) {
68 uint64_t tokenId;
69 constexpr int perNum = 10;
70 const char *perms[perNum] = {
71 "ohos.permission.MICROPHONE",
72 "ohos.permission.MANAGE_INTELLIGENT_VOICE",
73 "ohos.permission.MANAGE_AUDIO_CONFIG",
74 "ohos.permission.MICROPHONE_CONTROL",
75 "ohos.permission.MODIFY_AUDIO_SETTINGS",
76 "ohos.permission.ACCESS_NOTIFICATION_POLICY",
77 "ohos.permission.USE_BLUETOOTH",
78 "ohos.permission.CAPTURE_VOICE_DOWNLINK_AUDIO",
79 "ohos.permission.RECORD_VOICE_CALL",
80 "ohos.permission.MANAGE_SYSTEM_AUDIO_EFFECTS",
81 };
82
83 NativeTokenInfoParams infoInstance = {
84 .dcapsNum = 0,
85 .permsNum = 10,
86 .aclsNum = 0,
87 .dcaps = nullptr,
88 .perms = perms,
89 .acls = nullptr,
90 .processName = "audiofuzztest",
91 .aplStr = "system_basic",
92 };
93 tokenId = GetAccessTokenId(&infoInstance);
94 SetSelfTokenID(tokenId);
95 OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
96 g_hasPermission = true;
97 }
98 }
99
100 /*
101 * describe: get data from outside untrusted data(RAW_DATA) which size is according to sizeof(T)
102 * tips: only support basic type
103 */
104 template<class T>
GetData()105 T GetData()
106 {
107 T object {};
108 size_t objectSize = sizeof(object);
109 if (RAW_DATA == nullptr || objectSize > g_dataSize - g_pos) {
110 return object;
111 }
112 errno_t ret = memcpy_s(&object, objectSize, RAW_DATA + g_pos, objectSize);
113 if (ret != EOK) {
114 return {};
115 }
116 g_pos += objectSize;
117 return object;
118 }
119
120 template<class T>
GetArrLength(T & arr)121 uint32_t GetArrLength(T& arr)
122 {
123 if (arr == nullptr) {
124 AUDIO_INFO_LOG("%{public}s: The array length is equal to 0", __func__);
125 return 0;
126 }
127 return sizeof(arr) / sizeof(arr[0]);
128 }
129
AudioPolicyCallbackFuzzTest()130 void AudioPolicyCallbackFuzzTest()
131 {
132 auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
133 sptr<IRemoteObject> object = samgr->GetSystemAbility(AUDIO_DISTRIBUTED_SERVICE_ID);
134
135 std::shared_ptr<AudioPolicyProxy> audioPolicyProxy = std::make_shared<AudioPolicyProxy>(object);
136 if (audioPolicyProxy == nullptr) {
137 return;
138 }
139
140 uint32_t sessionID = GetData<uint32_t>();
141 uint32_t clientUid = GetData<uint32_t>();
142 int32_t zoneID = GetData<int32_t>();
143 audioPolicyProxy->SetAudioInterruptCallback(sessionID, object, clientUid, zoneID);
144 audioPolicyProxy->UnsetAudioInterruptCallback(sessionID, zoneID);
145
146 int32_t clientId = GetData<int32_t>();
147 audioPolicyProxy->SetAudioManagerInterruptCallback(clientId, object);
148 audioPolicyProxy->UnsetAudioManagerInterruptCallback(clientId);
149 audioPolicyProxy->SetQueryClientTypeCallback(object);
150 audioPolicyProxy->SetAvailableDeviceChangeCallback(clientId, MEDIA_OUTPUT_DEVICES, object);
151 audioPolicyProxy->UnsetAvailableDeviceChangeCallback(clientId, MEDIA_OUTPUT_DEVICES);
152 audioPolicyProxy->SetAudioConcurrencyCallback(sessionID, object);
153 audioPolicyProxy->UnsetAudioConcurrencyCallback(sessionID);
154 audioPolicyProxy->SetDistributedRoutingRoleCallback(object);
155 audioPolicyProxy->UnsetDistributedRoutingRoleCallback();
156 audioPolicyProxy->SetAudioDeviceRefinerCallback(object);
157 audioPolicyProxy->UnsetAudioDeviceRefinerCallback();
158 audioPolicyProxy->RegisterSpatializationStateEventListener(sessionID, STREAM_USAGE_MUSIC, object);
159 audioPolicyProxy->UnregisterSpatializationStateEventListener(sessionID);
160 }
161
AudioPolicyMicrophoneFuzzTest()162 void AudioPolicyMicrophoneFuzzTest()
163 {
164 auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
165 sptr<IRemoteObject> object = samgr->GetSystemAbility(AUDIO_DISTRIBUTED_SERVICE_ID);
166
167 std::shared_ptr<AudioPolicyProxy> audioPolicyProxy = std::make_shared<AudioPolicyProxy>(object);
168 if (audioPolicyProxy == nullptr) {
169 return;
170 }
171
172 audioPolicyProxy->SetMicrophoneMute(true);
173 audioPolicyProxy->SetMicrophoneMuteAudioConfig(true);
174 audioPolicyProxy->SetMicrophoneMutePersistent(true, PRIVACY_POLCIY_TYPE);
175 audioPolicyProxy->IsMicrophoneMuteLegacy();
176
177 int32_t sessionId = GetData<int32_t>();
178 audioPolicyProxy->GetAudioCapturerMicrophoneDescriptors(sessionId);
179 audioPolicyProxy->GetAvailableMicrophones();
180 }
181
AudioPolicyVolumeFuzzTest()182 void AudioPolicyVolumeFuzzTest()
183 {
184 auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
185 sptr<IRemoteObject> object = samgr->GetSystemAbility(AUDIO_DISTRIBUTED_SERVICE_ID);
186
187 std::shared_ptr<AudioPolicyProxy> audioPolicyProxy = std::make_shared<AudioPolicyProxy>(object);
188 if (audioPolicyProxy == nullptr) {
189 return;
190 }
191
192 int32_t volumeLevel = GetData<int32_t>();
193 int32_t volumeFlag = GetData<int32_t>();
194 audioPolicyProxy->SetSystemVolumeLevel(STREAM_MUSIC, volumeLevel, volumeFlag);
195
196 int32_t clientUid = GetData<int32_t>();
197 audioPolicyProxy->GetSystemActiveVolumeType(clientUid);
198
199 int32_t streamId = GetData<int32_t>();
200 float volume = FLOAT_VOLUME;
201 audioPolicyProxy->SetLowPowerVolume(streamId, volume);
202 audioPolicyProxy->GetLowPowerVolume(streamId);
203 audioPolicyProxy->GetSingleStreamVolume(streamId);
204 audioPolicyProxy->GetMinStreamVolume();
205 audioPolicyProxy->GetMaxStreamVolume();
206
207 std::string macAddress = "macAddress";
208 audioPolicyProxy->SetDeviceAbsVolumeSupported(macAddress, true);
209 audioPolicyProxy->IsAbsVolumeScene();
210
211 int32_t volumeSetA2dpDevice = GetData<int32_t>();
212 audioPolicyProxy->SetA2dpDeviceVolume(macAddress, volumeSetA2dpDevice, true);
213 audioPolicyProxy->DisableSafeMediaVolume();
214 }
215
216 typedef void (*TestFuncs[3])();
217
218 TestFuncs g_testFuncs = {
219 AudioPolicyCallbackFuzzTest,
220 AudioPolicyMicrophoneFuzzTest,
221 AudioPolicyVolumeFuzzTest,
222 };
223
FuzzTest(const uint8_t * rawData,size_t size)224 bool FuzzTest(const uint8_t* rawData, size_t size)
225 {
226 if (rawData == nullptr) {
227 return false;
228 }
229
230 // initialize data
231 RAW_DATA = rawData;
232 g_dataSize = size;
233 g_pos = 0;
234
235 uint32_t code = GetData<uint32_t>();
236 uint32_t len = GetArrLength(g_testFuncs);
237 if (len > 0) {
238 g_testFuncs[code % len]();
239 } else {
240 AUDIO_INFO_LOG("%{public}s: The len length is equal to 0", __func__);
241 }
242
243 return true;
244 }
245 } // namespace AudioStandard
246 } // namesapce OHOS
247
LLVMFuzzerInitialize(int * argc,char *** argv)248 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
249 {
250 OHOS::AudioStandard::AudioFuzzTestGetPermission();
251 return 0;
252 }
253
254 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)255 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
256 {
257 if (size < OHOS::AudioStandard::THRESHOLD) {
258 return 0;
259 }
260
261 OHOS::AudioStandard::FuzzTest(data, size);
262 return 0;
263 }