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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef BT_STACK_FUZZ_A2DP_CODECINFO_FUNCTIONS_H_
#define BT_STACK_FUZZ_A2DP_CODECINFO_FUNCTIONS_H_
#include <fuzzer/FuzzedDataProvider.h>
#include <vector>
#include "a2dp_codec_api.h"
#include "fuzzers/a2dp/codec/a2dpCodecHelperFunctions.h"
#include "fuzzers/a2dp/codec/a2dpCodecInfoFuzzHelpers.h"
#include "fuzzers/common/commonFuzzHelpers.h"
#include "stack/include/bt_hdr.h"
#define MAX_PACKET_SIZE 2048
/* This is a vector of lambda functions the fuzzer will pull from.
* This is done so new functions can be added to the fuzzer easily
* without requiring modifications to the main fuzzer file. This also
* allows multiple fuzzers to include this file, if functionality is needed.
*/
std::vector<std::function<void(FuzzedDataProvider*, uint8_t*)>>
a2dp_codec_info_operations = {
// A2DP_InitDefaultCodec
[](FuzzedDataProvider* fdp, uint8_t*) -> void {
// Allocate space for a new codec & add it to our tracking vector
uint8_t* codec_info = new uint8_t[AVDT_CODEC_SIZE];
a2dp_codec_info_vect.push_back(codec_info);
A2DP_InitDefaultCodec(codec_info);
},
// Delete a codec_info object
[](FuzzedDataProvider* fdp, uint8_t*) -> void {
if (a2dp_codec_info_vect.empty()) {
return;
}
// Get random vector index
size_t index = fdp->ConsumeIntegralInRange<size_t>(
0, a2dp_codec_info_vect.size() - 1);
// delete codec
delete a2dp_codec_info_vect.at(index);
// Remove from vector
a2dp_codec_info_vect.erase(a2dp_codec_info_vect.begin() + index);
},
// A2DP_GetCodecType
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetCodecType(codec_info);
},
// A2DP_IsSourceCodecValid
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsSourceCodecValid(codec_info);
},
// A2DP_IsSinkCodecValid
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsSinkCodecValid(codec_info);
},
// A2DP_IsPeerSourceCodecValid
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsPeerSourceCodecValid(codec_info);
},
// A2DP_IsPeerSinkCodecValid
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsPeerSinkCodecValid(codec_info);
},
// A2DP_IsSinkCodecSupported
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsSinkCodecSupported(codec_info);
},
// A2DP_IsPeerSourceCodecSupported
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_IsPeerSourceCodecSupported(codec_info);
},
// A2DP_UsesRtpHeader
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_UsesRtpHeader(fdp->ConsumeBool(), codec_info);
},
// A2DP_GetMediaType
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetMediaType(codec_info);
},
// A2DP_CodecName
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_CodecName(codec_info);
},
// A2DP_CodecTypeEquals
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
uint8_t* codec_info_2 =
getArbitraryVectorElement(fdp, a2dp_codec_info_vect, false);
if (codec_info_2) {
A2DP_CodecTypeEquals(codec_info, codec_info_2);
}
},
// A2DP_CodecEquals
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
uint8_t* codec_info_2 =
getArbitraryVectorElement(fdp, a2dp_codec_info_vect, false);
if (codec_info_2) {
A2DP_CodecEquals(codec_info, codec_info_2);
}
},
// A2DP_GetTrackSampleRate
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetTrackSampleRate(codec_info);
},
// A2DP_GetTrackBitsPerSample
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetTrackBitsPerSample(codec_info);
},
// A2DP_GetTrackChannelCount
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetTrackChannelCount(codec_info);
},
// A2DP_GetSinkTrackChannelType
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetSinkTrackChannelType(codec_info);
},
// A2DP_GetPacketTimestamp
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
uint32_t timestamp_retval;
size_t packet_size =
fdp->ConsumeIntegralInRange<size_t>(0, MAX_PACKET_SIZE);
std::vector<uint8_t> bytes = fdp->ConsumeBytes<uint8_t>(packet_size);
// Timestamp will fail if p_data is < 4 bytes, due to a cast & deref
// to a uint32_t*
if (bytes.size() < 4) {
return;
}
const uint8_t* p_data = bytes.data();
A2DP_GetPacketTimestamp(codec_info, p_data, ×tamp_retval);
},
// A2DP_BuildCodecHeader
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
std::shared_ptr<BT_HDR> p_buf = getArbitraryBtHdr(fdp);
if (p_buf) {
uint16_t frames_per_packet = fdp->ConsumeIntegral<uint16_t>();
A2DP_BuildCodecHeader(codec_info, p_buf.get(), frames_per_packet);
}
},
// A2DP_GetEncoderInterface
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetEncoderInterface(codec_info);
},
// A2DP_GetDecoderInterface
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetDecoderInterface(codec_info);
},
// A2DP_AdjustCodec
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_AdjustCodec(codec_info);
},
// A2DP_SourceCodecIndex
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_SourceCodecIndex(codec_info);
},
// A2DP_SinkCodecIndex
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_SinkCodecIndex(codec_info);
},
// A2DP_CodecIndexStr
[](FuzzedDataProvider* fdp, uint8_t*) -> void {
A2DP_CodecIndexStr(getArbitraryBtavCodecIndex(fdp));
},
// A2DP_InitCodecConfig
[](FuzzedDataProvider* fdp, uint8_t*) -> void {
AvdtpSepConfig cfg_retval;
A2DP_InitCodecConfig(getArbitraryBtavCodecIndex(fdp), &cfg_retval);
},
// A2DP_GetEecoderEffectiveFrameSize
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_GetEecoderEffectiveFrameSize(codec_info);
},
// A2DP_CodecInfoString
[](FuzzedDataProvider* fdp, uint8_t* codec_info) -> void {
A2DP_CodecInfoString(codec_info);
}};
#endif // BT_STACK_FUZZ_A2DP_CODECINFO_FUNCTIONS_H_
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