| /* |
| * Copyright (C) 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. |
| */ |
| |
| package com.android.server.connectivity; |
| |
| import static android.net.QosCallbackException.EX_TYPE_FILTER_NONE; |
| |
| import android.annotation.NonNull; |
| import android.net.IQosCallback; |
| import android.net.Network; |
| import android.net.QosCallbackException; |
| import android.net.QosFilter; |
| import android.net.QosSession; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.telephony.data.EpsBearerQosSessionAttributes; |
| import android.util.Log; |
| |
| import java.util.Objects; |
| |
| /** |
| * Wraps callback related information and sends messages between network agent and the application. |
| * <p/> |
| * This is a satellite class of {@link com.android.server.ConnectivityService} and not meant |
| * to be used in other contexts. |
| * |
| * @hide |
| */ |
| class QosCallbackAgentConnection implements IBinder.DeathRecipient { |
| private static final String TAG = QosCallbackAgentConnection.class.getSimpleName(); |
| private static final boolean DBG = false; |
| |
| private final int mAgentCallbackId; |
| @NonNull private final QosCallbackTracker mQosCallbackTracker; |
| @NonNull private final IQosCallback mCallback; |
| @NonNull private final IBinder mBinder; |
| @NonNull private final QosFilter mFilter; |
| @NonNull private final NetworkAgentInfo mNetworkAgentInfo; |
| |
| private final int mUid; |
| |
| /** |
| * Gets the uid |
| * @return uid |
| */ |
| int getUid() { |
| return mUid; |
| } |
| |
| /** |
| * Gets the binder |
| * @return binder |
| */ |
| @NonNull |
| IBinder getBinder() { |
| return mBinder; |
| } |
| |
| /** |
| * Gets the callback id |
| * |
| * @return callback id |
| */ |
| int getAgentCallbackId() { |
| return mAgentCallbackId; |
| } |
| |
| /** |
| * Gets the network tied to the callback of this connection |
| * |
| * @return network |
| */ |
| @NonNull |
| Network getNetwork() { |
| return mFilter.getNetwork(); |
| } |
| |
| QosCallbackAgentConnection(@NonNull final QosCallbackTracker qosCallbackTracker, |
| final int agentCallbackId, |
| @NonNull final IQosCallback callback, |
| @NonNull final QosFilter filter, |
| final int uid, |
| @NonNull final NetworkAgentInfo networkAgentInfo) { |
| Objects.requireNonNull(qosCallbackTracker, "qosCallbackTracker must be non-null"); |
| Objects.requireNonNull(callback, "callback must be non-null"); |
| Objects.requireNonNull(filter, "filter must be non-null"); |
| Objects.requireNonNull(networkAgentInfo, "networkAgentInfo must be non-null"); |
| |
| mQosCallbackTracker = qosCallbackTracker; |
| mAgentCallbackId = agentCallbackId; |
| mCallback = callback; |
| mFilter = filter; |
| mUid = uid; |
| mBinder = mCallback.asBinder(); |
| mNetworkAgentInfo = networkAgentInfo; |
| } |
| |
| @Override |
| public void binderDied() { |
| logw("binderDied: binder died with callback id: " + mAgentCallbackId); |
| mQosCallbackTracker.unregisterCallback(mCallback); |
| } |
| |
| void unlinkToDeathRecipient() { |
| mBinder.unlinkToDeath(this, 0); |
| } |
| |
| // Returns false if the NetworkAgent was never notified. |
| boolean sendCmdRegisterCallback() { |
| final int exceptionType = mFilter.validate(); |
| if (exceptionType != EX_TYPE_FILTER_NONE) { |
| try { |
| if (DBG) log("sendCmdRegisterCallback: filter validation failed"); |
| mCallback.onError(exceptionType); |
| } catch (final RemoteException e) { |
| loge("sendCmdRegisterCallback:", e); |
| } |
| return false; |
| } |
| |
| try { |
| mBinder.linkToDeath(this, 0); |
| } catch (final RemoteException e) { |
| loge("failed linking to death recipient", e); |
| return false; |
| } |
| mNetworkAgentInfo.onQosFilterCallbackRegistered(mAgentCallbackId, mFilter); |
| return true; |
| } |
| |
| void sendCmdUnregisterCallback() { |
| if (DBG) log("sendCmdUnregisterCallback: unregistering"); |
| mNetworkAgentInfo.onQosCallbackUnregistered(mAgentCallbackId); |
| } |
| |
| void sendEventQosSessionAvailable(final QosSession session, |
| final EpsBearerQosSessionAttributes attributes) { |
| try { |
| if (DBG) log("sendEventQosSessionAvailable: sending..."); |
| mCallback.onQosEpsBearerSessionAvailable(session, attributes); |
| } catch (final RemoteException e) { |
| loge("sendEventQosSessionAvailable: remote exception", e); |
| } |
| } |
| |
| void sendEventQosSessionLost(@NonNull final QosSession session) { |
| try { |
| if (DBG) log("sendEventQosSessionLost: sending..."); |
| mCallback.onQosSessionLost(session); |
| } catch (final RemoteException e) { |
| loge("sendEventQosSessionLost: remote exception", e); |
| } |
| } |
| |
| void sendEventQosCallbackError(@QosCallbackException.ExceptionType final int exceptionType) { |
| try { |
| if (DBG) log("sendEventQosCallbackError: sending..."); |
| mCallback.onError(exceptionType); |
| } catch (final RemoteException e) { |
| loge("sendEventQosCallbackError: remote exception", e); |
| } |
| } |
| |
| private static void log(@NonNull final String msg) { |
| Log.d(TAG, msg); |
| } |
| |
| private static void logw(@NonNull final String msg) { |
| Log.w(TAG, msg); |
| } |
| |
| private static void loge(@NonNull final String msg, final Throwable t) { |
| Log.e(TAG, msg, t); |
| } |
| } |