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-rw-r--r--common/framework/com/android/net/module/util/InterfaceParams.java105
1 files changed, 0 insertions, 105 deletions
diff --git a/common/framework/com/android/net/module/util/InterfaceParams.java b/common/framework/com/android/net/module/util/InterfaceParams.java
deleted file mode 100644
index 30762ebb..00000000
--- a/common/framework/com/android/net/module/util/InterfaceParams.java
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * 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.net.module.util;
-
-import android.net.MacAddress;
-import android.text.TextUtils;
-
-import java.net.NetworkInterface;
-import java.net.SocketException;
-
-
-/**
- * Encapsulate the interface parameters common to IpClient/IpServer components.
- *
- * Basically all java.net.NetworkInterface methods throw Exceptions. IpClient
- * and IpServer (sub)components need most or all of this information at some
- * point during their lifecycles, so pass only this simplified object around
- * which can be created once when IpClient/IpServer are told to start.
- *
- * @hide
- */
-public class InterfaceParams {
- public final String name;
- public final int index;
- public final boolean hasMacAddress;
- public final MacAddress macAddr;
- public final int defaultMtu;
-
- // TODO: move the below to NetworkStackConstants when this class is moved to the NetworkStack.
- private static final int ETHER_MTU = 1500;
- private static final int IPV6_MIN_MTU = 1280;
-
-
- /**
- * Return InterfaceParams corresponding with an interface name
- * @param name the interface name
- */
- public static InterfaceParams getByName(String name) {
- final NetworkInterface netif = getNetworkInterfaceByName(name);
- if (netif == null) return null;
-
- // Not all interfaces have MAC addresses, e.g. rmnet_data0.
- final MacAddress macAddr = getMacAddress(netif);
-
- try {
- return new InterfaceParams(name, netif.getIndex(), macAddr, netif.getMTU());
- } catch (IllegalArgumentException | SocketException e) {
- return null;
- }
- }
-
- public InterfaceParams(String name, int index, MacAddress macAddr) {
- this(name, index, macAddr, ETHER_MTU);
- }
-
- public InterfaceParams(String name, int index, MacAddress macAddr, int defaultMtu) {
- if (TextUtils.isEmpty(name)) {
- throw new IllegalArgumentException("impossible interface name");
- }
-
- if (index <= 0) throw new IllegalArgumentException("invalid interface index");
-
- this.name = name;
- this.index = index;
- this.hasMacAddress = (macAddr != null);
- this.macAddr = hasMacAddress ? macAddr : MacAddress.fromBytes(new byte[] {
- 0x02, 0x00, 0x00, 0x00, 0x00, 0x00 });
- this.defaultMtu = (defaultMtu > IPV6_MIN_MTU) ? defaultMtu : IPV6_MIN_MTU;
- }
-
- @Override
- public String toString() {
- return String.format("%s/%d/%s/%d", name, index, macAddr, defaultMtu);
- }
-
- private static NetworkInterface getNetworkInterfaceByName(String name) {
- try {
- return NetworkInterface.getByName(name);
- } catch (NullPointerException | SocketException e) {
- return null;
- }
- }
-
- private static MacAddress getMacAddress(NetworkInterface netif) {
- try {
- return MacAddress.fromBytes(netif.getHardwareAddress());
- } catch (IllegalArgumentException | NullPointerException | SocketException e) {
- return null;
- }
- }
-}