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 "audiocapture_fuzzer.h"
16 #include "hdi_service_common.h"
17 using namespace std;
18 namespace OHOS {
19 namespace Audio {
20 constexpr size_t THRESHOLD = 200;
21 constexpr int32_t OFFSET = 4;
22 struct AudioSceneDescriptor g_scene;
23 enum CaptureCmdId {
24 AUDIO_CAPTURE_SET_SAMPLE_ATTR,
25 AUDIO_CAPTURE_CHECK_SCENE_CAPABILITY,
26 AUDIO_CAPTURE_SELECT_SCENE,
27 AUDIO_CAPTURE_SET_VOLUME,
28 AUDIO_CAPTURE_SET_GAIN,
29 AUDIO_CAPTURE_CAPTURE_FRAME,
30 AUDIO_CAPTURE_SET_EXTRA_PARAMS,
31 AUDIO_CAPTURE_REQ_MMAP_BUFFER,
32 AUDIO_CAPTURE_DEV_DUMP,
33 };
34
Convert2Uint32(const uint8_t * ptr)35 static uint32_t Convert2Uint32(const uint8_t *ptr)
36 {
37 if (ptr == nullptr) {
38 return 0;
39 }
40 /*
41 * Move the 0th digit 24 to the left, the first digit 16 to the left, the second digit 8 to the left,
42 * and the third digit no left
43 */
44 return (ptr[BUFFER_INDEX_ZERO] << PCM_24_BIT) | (ptr[BUFFER_INDEX_ONE] << PCM_16_BIT) |
45 (ptr[BUFFER_INDEX_TWO] << PCM_8_BIT) | (ptr[BUFFER_INDEX_THREE]);
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
AudioCaptureReqMmapBuffer(struct IAudioCapture * & capture,uint8_t * & data)61 void AudioCaptureReqMmapBuffer(struct IAudioCapture *&capture, 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 capture->ReqMmapBuffer(capture, temp, &desc);
75 }
76
CaptureFucSwitch(struct IAudioCapture * & capture,uint32_t cmd,const uint8_t * & rawData)77 void CaptureFucSwitch(struct IAudioCapture *&capture, uint32_t cmd, const uint8_t *&rawData)
78 {
79 uint8_t *data = const_cast<uint8_t *>(rawData);
80 switch (cmd) {
81 case AUDIO_CAPTURE_SET_SAMPLE_ATTR:
82 capture->SetSampleAttributes(capture, reinterpret_cast<const struct AudioSampleAttributes *>(rawData));
83 break;
84 case AUDIO_CAPTURE_CHECK_SCENE_CAPABILITY: {
85 bool supported = false;
86 InitScene((const struct AudioSceneDescriptor *)(rawData));
87 capture->CheckSceneCapability(capture, &g_scene, &supported);
88 break;
89 }
90 case AUDIO_CAPTURE_SELECT_SCENE:
91 InitScene((const struct AudioSceneDescriptor *)(rawData));
92 capture->SelectScene(capture, &g_scene);
93 break;
94 case AUDIO_CAPTURE_SET_VOLUME:
95 capture->SetVolume(capture, *(reinterpret_cast<float *>(data)));
96 break;
97 case AUDIO_CAPTURE_SET_GAIN:
98 capture->SetGain(capture, *(reinterpret_cast<float *>(data)));
99 break;
100 case AUDIO_CAPTURE_CAPTURE_FRAME: {
101 uint32_t frameLen = 0;
102 uint64_t replyBytes = 0;
103 int8_t frame[BUFFER_LENTH] = {0};
104 capture->CaptureFrame(capture, frame, &frameLen, &replyBytes);
105 break;
106 }
107 case AUDIO_CAPTURE_SET_EXTRA_PARAMS:
108 capture->SetExtraParams(capture, reinterpret_cast<const char *>(rawData));
109 break;
110 case AUDIO_CAPTURE_REQ_MMAP_BUFFER: {
111 AudioCaptureReqMmapBuffer(capture, data);
112 break;
113 }
114 case AUDIO_CAPTURE_DEV_DUMP: {
115 int32_t temp = *(reinterpret_cast<int32_t *>(data));
116 capture->AudioDevDump(capture, temp, temp);
117 }
118 break;
119 default:
120 return;
121 }
122 }
123
DoSomethingInterestingWithMyAPI(const uint8_t * rawData,size_t size)124 bool DoSomethingInterestingWithMyAPI(const uint8_t *rawData, size_t size)
125 {
126 if (rawData == nullptr) {
127 return false;
128 }
129 struct IAudioAdapter *adapter = nullptr;
130 struct IAudioCapture *capture = nullptr;
131 uint32_t captureId = 0;
132 uint32_t cmd = Convert2Uint32(rawData);
133
134 rawData = rawData + OFFSET;
135 struct IAudioManager *manager = IAudioManagerGet(false);
136 if (manager == nullptr) {
137 return false;
138 }
139 int32_t ret = AudioCreateCapture(manager, PIN_IN_MIC, ADAPTER_NAME, &adapter, &capture, &captureId);
140 if (ret != HDF_SUCCESS) {
141 return false;
142 }
143 CaptureFucSwitch(capture, cmd, rawData);
144 adapter->DestroyCapture(adapter, captureId);
145 manager->UnloadAdapter(manager, ADAPTER_NAME.c_str());
146 IAudioManagerRelease(manager, false);
147 return true;
148 }
149 }
150 }
151
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)152 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
153 {
154 if (size < OHOS::Audio::THRESHOLD) {
155 return 0;
156 }
157 OHOS::Audio::DoSomethingInterestingWithMyAPI(data, size);
158 return 0;
159 }