14a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh/* 24a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * Copyright (C) 2010 The Android Open Source Project 34a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * Copyright (C) 2012-2016, The Linux Foundation. All rights reserved. 44a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * 54a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * Not a Contribution, Apache license notifications and license are 64a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * retained for attribution purposes only. 74a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 84a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * Licensed under the Apache License, Version 2.0 (the "License"); 94a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * you may not use this file except in compliance with the License. 104a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * You may obtain a copy of the License at 114a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * 124a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * http://www.apache.org/licenses/LICENSE-2.0 134a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * 144a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * Unless required by applicable law or agreed to in writing, software 154a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * distributed under the License is distributed on an "AS IS" BASIS, 164a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 174a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * See the License for the specific language governing permissions and 184a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh * limitations under the License. 194a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh */ 204a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 214a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <fcntl.h> 224a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <stdint.h> 234a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <sys/types.h> 244a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <binder/Parcel.h> 254a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <binder/IBinder.h> 264a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <binder/IInterface.h> 274a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <binder/IPCThreadState.h> 284a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <utils/Errors.h> 294a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <private/android_filesystem_config.h> 304a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#include <IQService.h> 314a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 324a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh#define QSERVICE_DEBUG 0 334a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 344a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhusing namespace android; 354a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhusing namespace qClient; 364a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 374a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh// --------------------------------------------------------------------------- 384a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 394a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhnamespace qService { 404a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 414a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhclass BpQService : public BpInterface<IQService> 424a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh{ 434a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhpublic: 444a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh BpQService(const sp<IBinder>& impl) 454a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh : BpInterface<IQService>(impl) {} 464a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 474a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh virtual void connect(const sp<IQClient>& client) { 484a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGD_IF(QSERVICE_DEBUG, "%s: connect HWC client", __FUNCTION__); 494a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh Parcel data, reply; 504a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.writeInterfaceToken(IQService::getInterfaceDescriptor()); 514a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.writeStrongBinder(IInterface::asBinder(client)); 524a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh remote()->transact(CONNECT_HWC_CLIENT, data, &reply); 534a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 544a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 554a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh virtual void connect(const sp<IQHDMIClient>& client) { 564a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGD_IF(QSERVICE_DEBUG, "%s: connect HDMI client", __FUNCTION__); 574a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh Parcel data, reply; 584a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.writeInterfaceToken(IQService::getInterfaceDescriptor()); 594a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.writeStrongBinder(IInterface::asBinder(client)); 604a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh remote()->transact(CONNECT_HDMI_CLIENT, data, &reply); 614a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 624a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 634a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 644a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh virtual android::status_t dispatch(uint32_t command, const Parcel* inParcel, 654a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh Parcel* outParcel) { 664a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGD_IF(QSERVICE_DEBUG, "%s: dispatch in:%p", __FUNCTION__, inParcel); 674a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh status_t err = (status_t) android::FAILED_TRANSACTION; 684a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh Parcel data; 694a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh Parcel *reply = outParcel; 704a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.writeInterfaceToken(IQService::getInterfaceDescriptor()); 714a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh if (inParcel && inParcel->dataSize() > 0) 724a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh data.appendFrom(inParcel, 0, inParcel->dataSize()); 734a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh err = remote()->transact(command, data, reply); 744a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return err; 754a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 764a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh}; 774a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 784a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain VongsouvanhIMPLEMENT_META_INTERFACE(QService, "android.display.IQService"); 794a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 804a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh// ---------------------------------------------------------------------- 814a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 824a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanhstatus_t BnQService::onTransact( 834a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 844a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh{ 854a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGD_IF(QSERVICE_DEBUG, "%s: code: %d", __FUNCTION__, code); 864a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh // IPC should be from certain processes only 874a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh IPCThreadState* ipc = IPCThreadState::self(); 884a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh const int callerPid = ipc->getCallingPid(); 894a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh const int callerUid = ipc->getCallingUid(); 904a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 914a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh const bool permission = (callerUid == AID_MEDIA || 924a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_GRAPHICS || 934a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_ROOT || 944a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_CAMERASERVER || 954a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_AUDIO || 964a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_SYSTEM || 974a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerUid == AID_MEDIA_CODEC); 984a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 994a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh if (code == CONNECT_HWC_CLIENT) { 1004a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh CHECK_INTERFACE(IQService, data, reply); 1014a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh if(callerUid != AID_GRAPHICS) { 1024a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGE("display.qservice CONNECT_HWC_CLIENT access denied: pid=%d uid=%d", 1034a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerPid, callerUid); 1044a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return PERMISSION_DENIED; 1054a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 1064a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh sp<IQClient> client = 1074a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh interface_cast<IQClient>(data.readStrongBinder()); 1084a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh connect(client); 1094a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return NO_ERROR; 1104a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } else if(code == CONNECT_HDMI_CLIENT) { 1114a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh CHECK_INTERFACE(IQService, data, reply); 1124a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh if(callerUid != AID_SYSTEM && callerUid != AID_ROOT) { 1134a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGE("display.qservice CONNECT_HDMI_CLIENT access denied: pid=%d uid=%d", 1144a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh callerPid, callerUid); 1154a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return PERMISSION_DENIED; 1164a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 1174a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh sp<IQHDMIClient> client = 1184a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh interface_cast<IQHDMIClient>(data.readStrongBinder()); 1194a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh connect(client); 1204a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return NO_ERROR; 1214a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } else if (code > COMMAND_LIST_START && code < COMMAND_LIST_END) { 1224a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh if(!permission) { 1234a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh ALOGE("display.qservice access denied: command=%d pid=%d uid=%d", 1244a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh code, callerPid, callerUid); 1254a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return PERMISSION_DENIED; 1264a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 1274a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh CHECK_INTERFACE(IQService, data, reply); 1284a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh dispatch(code, &data, reply); 1294a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return NO_ERROR; 1304a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } else { 1314a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh return BBinder::onTransact(code, data, reply, flags); 1324a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh } 1334a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh} 1344a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh 1354a1efd0680d2e9b61739e1eaeffd89174d6d2605Alain Vongsouvanh}; // namespace qService 136