mirror of
https://github.com/openharmony/drivers_peripheral.git
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lwx1281857
935dc72ef1
Feature or Bugfix:Bugfix Binary Source:No Signed-off-by: lwx1281857 <linnanmu@h-partners.com>
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "motion_fuzzer.h"
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#include <cstddef>
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#include <cstdint>
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#include "hdf_log.h"
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#include "v1_1/motion_interface_stub.h"
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using namespace OHOS::HDI::Motion::V1_1;
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namespace OHOS {
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constexpr size_t THRESHOLD = 10;
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constexpr int32_t OFFSET = 4;
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constexpr int32_t ARRAY0 = 0;
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constexpr int32_t ARRAY1 = 1;
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constexpr int32_t ARRAY2 = 2;
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constexpr int32_t ARRAY3 = 3;
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constexpr int32_t DIGIT8 = 8;
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constexpr int32_t DIGIT16 = 16;
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constexpr int32_t DIGIT24 = 24;
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const std::u16string MOTION_INTERFACE_TOKEN = u"ohos.hdi.motion.v1_1.IMotionInterface";
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uint32_t Convert2Uint32(const uint8_t* ptr)
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{
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if (ptr == nullptr) {
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return 0;
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}
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/*
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* Move the 0th digit 24 to the left, the first digit 16 to the left, the second digit 8 to the left,
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* and the third digit no left
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*/
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return (ptr[ARRAY0] << DIGIT24) | (ptr[ARRAY1] << DIGIT16) | (ptr[ARRAY2] << DIGIT8) | (ptr[ARRAY3]);
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}
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bool DoSomethingInterestingWithMyAPI(const uint8_t* rawData, size_t size)
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{
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if (rawData == nullptr) {
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return false;
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}
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uint32_t code = Convert2Uint32(rawData);
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rawData = rawData + OFFSET;
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size = size - OFFSET;
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MessageParcel data;
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data.WriteInterfaceToken(MOTION_INTERFACE_TOKEN);
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data.WriteBuffer(rawData, size);
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data.RewindRead(0);
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MessageParcel reply;
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MessageOption option;
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sptr<OHOS::HDI::Motion::V1_1::IMotionInterface> g_motionInterface =
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OHOS::HDI::Motion::V1_1::IMotionInterface::Get(false);
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if (g_motionInterface == nullptr) {
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HDF_LOGE("%{public}s:IMotionInterface::Get() failed.", __func__);
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return false;
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}
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sptr<OHOS::HDI::Motion::V1_1::MotionInterfaceStub> motionInterface =
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new OHOS::HDI::Motion::V1_1::MotionInterfaceStub(g_motionInterface);
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if (motionInterface == nullptr) {
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HDF_LOGE("%{public}s:new MotionInterfaceStub failed.", __func__);
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return false;
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}
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motionInterface->OnRemoteRequest(code, data, reply, option);
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return true;
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}
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}
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/* Fuzzer entry point */
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
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{
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if (size < OHOS::THRESHOLD) {
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return 0;
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}
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/* Run your code on data */
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OHOS::DoSomethingInterestingWithMyAPI(data, size);
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return 0;
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}
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