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
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
AudioRenderReqMmapBuffer(struct IAudioRender * & render,uint8_t * & data)48 void AudioRenderReqMmapBuffer(struct IAudioRender *&render, uint8_t *&data)
49 {
50 int32_t temp = *(reinterpret_cast<int32_t *>(data));
51 struct AudioMmapBufferDescripter desc = {
52 .memoryAddress = reinterpret_cast<int8_t *>(data),
53 .memoryAddressLen = *(reinterpret_cast<uint32_t *>(data)),
54 .memoryFd = temp,
55 .totalBufferFrames = temp,
56 .transferFrameSize = temp,
57 .isShareable = temp,
58 .offset = temp,
59 .filePath = reinterpret_cast<char *>(data),
60 };
61 render->ReqMmapBuffer(render, temp, &desc);
62 }
63
RenderFucSwitch(struct IAudioRender * & render,uint32_t cmd,const uint8_t * & rawData,size_t size)64 void RenderFucSwitch(struct IAudioRender *&render, uint32_t cmd, const uint8_t *&rawData, size_t size)
65 {
66 uint8_t *data = const_cast<uint8_t *>(rawData);
67 switch (cmd) {
68 case AUDIO_RENDER_SET_SAMPLE_ATTR:
69 render->SetSampleAttributes(render, reinterpret_cast<const struct AudioSampleAttributes *>(rawData));
70 break;
71 case AUDIO_RENDER_CHECK_SCENE_CAPABILITY: {
72 bool supported = false;
73 render->CheckSceneCapability(render, reinterpret_cast<const struct AudioSceneDescriptor *>(rawData),
74 &supported);
75 break;
76 }
77 case AUDIO_RENDER_SELECT_SCENE:
78 render->SelectScene(render, reinterpret_cast<const struct AudioSceneDescriptor *>(rawData));
79 break;
80 case AUDIO_RENDER_SET_VOLUME:
81 render->SetVolume(render, *(reinterpret_cast<float *>(data)));
82 break;
83 case AUDIO_RENDER_SET_GAIN:
84 render->SetGain(render, *(reinterpret_cast<float *>(data)));
85 break;
86 case AUDIO_RENDER_RENDER_FRAME: {
87 uint64_t replyBytes = 0;
88 render->RenderFrame(render, reinterpret_cast<const int8_t *>(rawData), size, &replyBytes);
89 break;
90 }
91 case AUDIO_RENDER_SET_EXTRA_PARAMS:
92 render->SetExtraParams(render, reinterpret_cast<const char *>(rawData));
93 break;
94 case AUDIO_RENDER_REQ_MMAP_BUFFER: {
95 AudioRenderReqMmapBuffer(render, data);
96 break;
97 }
98 case AUDIO_RENDER_SET_CHANNEL_MODE:
99 render->SetChannelMode(render, *(reinterpret_cast<AudioChannelMode *>(data)));
100 break;
101 case AUDIO_RENDER_DEV_DUMP: {
102 int32_t temp = *(reinterpret_cast<uint32_t *>(data));
103 render->AudioDevDump(render, temp, temp);
104 break;
105 }
106 default:
107 return;
108 }
109 }
110
DoSomethingInterestingWithMyAPI(const uint8_t * rawData,size_t size)111 bool DoSomethingInterestingWithMyAPI(const uint8_t *rawData, size_t size)
112 {
113 if (rawData == nullptr) {
114 return false;
115 }
116 struct IAudioAdapter *adapter = nullptr;
117 struct IAudioRender *render = nullptr;
118 uint32_t cmd = Convert2Uint32(rawData);
119 rawData = rawData + OFFSET;
120 size = size - OFFSET;
121 struct IAudioManager *manager = IAudioManagerGet(true);
122 if (manager == nullptr) {
123 return false;
124 }
125 int32_t ret = AudioCreateRender(manager, PIN_OUT_SPEAKER, ADAPTER_NAME, &adapter, &render);
126 if (ret != HDF_SUCCESS) {
127 return false;
128 }
129 RenderFucSwitch(render, cmd, rawData, size);
130 adapter->DestroyRender(adapter, nullptr);
131 manager->UnloadAdapter(manager, ADAPTER_NAME.c_str());
132 IAudioManagerRelease(manager, true);
133 return true;
134 }
135 }
136 }
137
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::Audio::THRESHOLD) {
141 return 0;
142 }
143 OHOS::Audio::DoSomethingInterestingWithMyAPI(data, size);
144 return 0;
145 }