Add NetworkObserverRegistry to NetworkStack

The NetworkObserverRegistry will replace usage of
NetworkManagementService in the app.

Test: m, booted, WiFi working
Bug: 112869080
Change-Id: Ic7f0114d0c9361dd2408e47bb04a8dd44a908a47

1 files changed, 87 insertions, 0 deletions

diff --git a/src/com/android/server/NetworkObserver.java b/src/com/android/server/NetworkObserver.java
new file mode 100644
index 0000000..d3b40a6
--- /dev/null
+++ b/src/com/android/server/NetworkObserver.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2019 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;
+
+import android.net.LinkAddress;
+
+/**
+ * Observer for network events, to use with {@link NetworkObserverRegistry}.
+ */
+public interface NetworkObserver {
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener#onInterfaceChanged(java.lang.String, boolean)
+     */
+    default void onInterfaceChanged(String ifName, boolean up) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener#onInterfaceRemoved(String)
+     */
+    default void onInterfaceRemoved(String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onInterfaceAddressUpdated(String, String, int, int)
+     */
+    default void onInterfaceAddressUpdated(LinkAddress address, String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onInterfaceAddressRemoved(String, String, int, int)
+     */
+    default void onInterfaceAddressRemoved(LinkAddress address, String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener#onInterfaceLinkStateChanged(String, boolean)
+     */
+    default void onInterfaceLinkStateChanged(String ifName, boolean up) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener#onInterfaceAdded(String)
+     */
+    default void onInterfaceAdded(String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onInterfaceClassActivityChanged(boolean, int, long, int)
+     */
+    default void onInterfaceClassActivityChanged(
+            boolean isActive, int label, long timestamp, int uid) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener#onQuotaLimitReached(String, String)
+     */
+    default void onQuotaLimitReached(String alertName, String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onInterfaceDnsServerInfo(String, long, String[])
+     */
+    default void onInterfaceDnsServerInfo(String ifName, long lifetime, String[] servers) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onRouteChanged(boolean, String, String, String)
+     */
+    default void onRouteUpdated(String route, String gateway, String ifName) {}
+
+    /**
+     * @see android.net.INetdUnsolicitedEventListener
+     *          #onRouteChanged(boolean, String, String, String)
+     */
+    default void onRouteRemoved(String route, String gateway, String ifName) {}
+}