1 /*
2 * Copyright (c) 2022 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 #include "audiorender_fuzzer.h"
16 #include "hdi_service_common.h"
17 using namespace std;
18 namespace OHOS {
19 namespace Audio {
20 constexpr size_t THRESHOLD = 10;
21 constexpr int32_t OFFSET = 4;
22 struct AudioSceneDescriptor g_scene;
23 enum RenderCmdId {
24 AUDIO_RENDER_SET_SAMPLE_ATTR,
25 AUDIO_RENDER_CHECK_SCENE_CAPABILITY,
26 AUDIO_RENDER_SELECT_SCENE,
27 AUDIO_RENDER_SET_VOLUME,
28 AUDIO_RENDER_SET_GAIN,
29 AUDIO_RENDER_RENDER_FRAME,
30 AUDIO_RENDER_SET_EXTRA_PARAMS,
31 AUDIO_RENDER_REQ_MMAP_BUFFER,
32 AUDIO_RENDER_SET_CHANNEL_MODE,
33 AUDIO_RENDER_DEV_DUMP,
34 };
35
Convert2Uint32(const uint8_t * ptr)36 static uint32_t Convert2Uint32(const uint8_t *ptr)
37 {
38 if (ptr == nullptr) {
39 return 0;
40 }
41 /*
42 * Move the 0th digit 24 to the left, the first digit 16 to the left, the second digit 8 to the left,
43 * and the third digit no left
44 */
45 return (ptr[0] << 24) | (ptr[1] << 16) | (ptr[2] << 8) | (ptr[3]);
46 }
47
InitScene(const struct AudioSceneDescriptor * scene)48 static int32_t InitScene(const struct AudioSceneDescriptor *scene)
49 {
50 if (scene == nullptr) {
51 return HDF_FAILURE;
52 }
53
54 g_scene.scene = {0};
55 g_scene.desc.portId = scene->desc.portId;
56 g_scene.desc.pins = scene->desc.pins;
57 g_scene.desc.desc = NULL;
58 return HDF_SUCCESS;
59 }
60
AudioRenderReqMmapBuffer(struct IAudioRender * & render,uint8_t * & data)61 void AudioRenderReqMmapBuffer(struct IAudioRender *&render, uint8_t *&data)
62 {
63 int32_t temp = *(reinterpret_cast<int32_t *>(data));
64 struct AudioMmapBufferDescriptor desc = {
65 .memoryAddress = reinterpret_cast<int8_t *>(data),
66 .memoryAddressLen = *(reinterpret_cast<uint32_t *>(data)),
67 .memoryFd = temp,
68 .totalBufferFrames = temp,
69 .transferFrameSize = temp,
70 .isShareable = temp,
71 .offset = temp,
72 .filePath = reinterpret_cast<char *>(data),
73 };
74 render->ReqMmapBuffer(render, temp, &desc);
75 }
76
RenderFucSwitch(struct IAudioRender * & render,uint32_t cmd,const uint8_t * & rawData,size_t size)77 void RenderFucSwitch(struct IAudioRender *&render, uint32_t cmd, const uint8_t *&rawData, size_t size)
78 {
79 uint8_t *data = const_cast<uint8_t *>(rawData);
80 switch (cmd) {
81 case AUDIO_RENDER_SET_SAMPLE_ATTR:
82 render->SetSampleAttributes(render, reinterpret_cast<const struct AudioSampleAttributes *>(rawData));
83 break;
84 case AUDIO_RENDER_CHECK_SCENE_CAPABILITY: {
85 bool supported = false;
86 InitScene((const struct AudioSceneDescriptor *)(rawData));
87 render->CheckSceneCapability(render, &g_scene, &supported);
88 break;
89 }
90 case AUDIO_RENDER_SELECT_SCENE:
91 InitScene((const struct AudioSceneDescriptor *)(rawData));
92 render->SelectScene(render, &g_scene);
93 break;
94 case AUDIO_RENDER_SET_VOLUME:
95 render->SetVolume(render, *(reinterpret_cast<float *>(data)));
96 break;
97 case AUDIO_RENDER_SET_GAIN:
98 render->SetGain(render, *(reinterpret_cast<float *>(data)));
99 break;
100 case AUDIO_RENDER_RENDER_FRAME: {
101 uint64_t replyBytes = 0;
102 render->RenderFrame(render, reinterpret_cast<const int8_t *>(rawData), size, &replyBytes);
103 break;
104 }
105 case AUDIO_RENDER_SET_EXTRA_PARAMS:
106 render->SetExtraParams(render, reinterpret_cast<const char *>(rawData));
107 break;
108 case AUDIO_RENDER_REQ_MMAP_BUFFER: {
109 AudioRenderReqMmapBuffer(render, data);
110 break;
111 }
112 case AUDIO_RENDER_SET_CHANNEL_MODE:
113 render->SetChannelMode(render, *(reinterpret_cast<AudioChannelMode *>(data)));
114 break;
115 case AUDIO_RENDER_DEV_DUMP: {
116 int32_t temp = *(reinterpret_cast<uint32_t *>(data));
117 render->AudioDevDump(render, temp, temp);
118 break;
119 }
120 default:
121 return;
122 }
123 }
124
DoSomethingInterestingWithMyAPI(const uint8_t * rawData,size_t size)125 bool DoSomethingInterestingWithMyAPI(const uint8_t *rawData, size_t size)
126 {
127 if (rawData == nullptr) {
128 return false;
129 }
130 struct IAudioAdapter *adapter = nullptr;
131 struct IAudioRender *render = nullptr;
132 uint32_t cmd = Convert2Uint32(rawData);
133 uint32_t renderId = 0;
134
135 rawData = rawData + OFFSET;
136 size = size - OFFSET;
137 struct IAudioManager *manager = IAudioManagerGet(false);
138 if (manager == nullptr) {
139 return false;
140 }
141 int32_t ret = AudioCreateRender(manager, PIN_OUT_SPEAKER, ADAPTER_NAME, &adapter, &render, &renderId);
142 if (ret != HDF_SUCCESS) {
143 return false;
144 }
145 RenderFucSwitch(render, cmd, rawData, size);
146 adapter->DestroyRender(adapter, renderId);
147 manager->UnloadAdapter(manager, ADAPTER_NAME.c_str());
148 IAudioManagerRelease(manager, false);
149 return true;
150 }
151 }
152 }
153
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)154 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
155 {
156 if (size < OHOS::Audio::THRESHOLD) {
157 return 0;
158 }
159 OHOS::Audio::DoSomethingInterestingWithMyAPI(data, size);
160 return 0;
161 }