diff options
Diffstat (limited to 'packages/Tethering/src/android/net/util/TetheringUtils.java')
| -rw-r--r-- | packages/Tethering/src/android/net/util/TetheringUtils.java | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/packages/Tethering/src/android/net/util/TetheringUtils.java b/packages/Tethering/src/android/net/util/TetheringUtils.java deleted file mode 100644 index 53b54f7de05d..000000000000 --- a/packages/Tethering/src/android/net/util/TetheringUtils.java +++ /dev/null @@ -1,165 +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 android.net.util; - -import android.net.TetherStatsParcel; -import android.net.TetheringRequestParcel; -import android.util.Log; - -import androidx.annotation.NonNull; - -import java.io.FileDescriptor; -import java.net.Inet6Address; -import java.net.SocketException; -import java.net.UnknownHostException; -import java.util.Arrays; -import java.util.Objects; - -/** - * The classes and the methods for tethering utilization. - * - * {@hide} - */ -public class TetheringUtils { - public static final byte[] ALL_NODES = new byte[] { - (byte) 0xff, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 - }; - - /** - * Configures a socket for receiving and sending ICMPv6 neighbor advertisments. - * @param fd the socket's {@link FileDescriptor}. - */ - public static native void setupNaSocket(FileDescriptor fd) - throws SocketException; - - /** - * Configures a socket for receiving and sending ICMPv6 neighbor solicitations. - * @param fd the socket's {@link FileDescriptor}. - */ - public static native void setupNsSocket(FileDescriptor fd) - throws SocketException; - - /** - * The object which records offload Tx/Rx forwarded bytes/packets. - * TODO: Replace the inner class ForwardedStats of class OffloadHardwareInterface with - * this class as well. - */ - public static class ForwardedStats { - public final long rxBytes; - public final long rxPackets; - public final long txBytes; - public final long txPackets; - - public ForwardedStats() { - rxBytes = 0; - rxPackets = 0; - txBytes = 0; - txPackets = 0; - } - - public ForwardedStats(long rxBytes, long txBytes) { - this.rxBytes = rxBytes; - this.rxPackets = 0; - this.txBytes = txBytes; - this.txPackets = 0; - } - - public ForwardedStats(long rxBytes, long rxPackets, long txBytes, long txPackets) { - this.rxBytes = rxBytes; - this.rxPackets = rxPackets; - this.txBytes = txBytes; - this.txPackets = txPackets; - } - - public ForwardedStats(@NonNull TetherStatsParcel tetherStats) { - rxBytes = tetherStats.rxBytes; - rxPackets = tetherStats.rxPackets; - txBytes = tetherStats.txBytes; - txPackets = tetherStats.txPackets; - } - - public ForwardedStats(@NonNull ForwardedStats other) { - rxBytes = other.rxBytes; - rxPackets = other.rxPackets; - txBytes = other.txBytes; - txPackets = other.txPackets; - } - - /** Add Tx/Rx bytes/packets and return the result as a new object. */ - @NonNull - public ForwardedStats add(@NonNull ForwardedStats other) { - return new ForwardedStats(rxBytes + other.rxBytes, rxPackets + other.rxPackets, - txBytes + other.txBytes, txPackets + other.txPackets); - } - - /** Subtract Tx/Rx bytes/packets and return the result as a new object. */ - @NonNull - public ForwardedStats subtract(@NonNull ForwardedStats other) { - // TODO: Perhaps throw an exception if any negative difference value just in case. - final long rxBytesDiff = Math.max(rxBytes - other.rxBytes, 0); - final long rxPacketsDiff = Math.max(rxPackets - other.rxPackets, 0); - final long txBytesDiff = Math.max(txBytes - other.txBytes, 0); - final long txPacketsDiff = Math.max(txPackets - other.txPackets, 0); - return new ForwardedStats(rxBytesDiff, rxPacketsDiff, txBytesDiff, txPacketsDiff); - } - - /** Returns the string representation of this object. */ - @NonNull - public String toString() { - return String.format("ForwardedStats(rxb: %d, rxp: %d, txb: %d, txp: %d)", rxBytes, - rxPackets, txBytes, txPackets); - } - } - - /** - * Configures a socket for receiving ICMPv6 router solicitations and sending advertisements. - * @param fd the socket's {@link FileDescriptor}. - * @param ifIndex the interface index. - */ - public static native void setupRaSocket(FileDescriptor fd, int ifIndex) - throws SocketException; - - /** - * Read s as an unsigned 16-bit integer. - */ - public static int uint16(short s) { - return s & 0xffff; - } - - /** Check whether two TetheringRequestParcels are the same. */ - public static boolean isTetheringRequestEquals(final TetheringRequestParcel request, - final TetheringRequestParcel otherRequest) { - if (request == otherRequest) return true; - - return request != null && otherRequest != null - && request.tetheringType == otherRequest.tetheringType - && Objects.equals(request.localIPv4Address, otherRequest.localIPv4Address) - && Objects.equals(request.staticClientAddress, otherRequest.staticClientAddress) - && request.exemptFromEntitlementCheck == otherRequest.exemptFromEntitlementCheck - && request.showProvisioningUi == otherRequest.showProvisioningUi; - } - - /** Get inet6 address for all nodes given scope ID. */ - public static Inet6Address getAllNodesForScopeId(int scopeId) { - try { - return Inet6Address.getByAddress("ff02::1", ALL_NODES, scopeId); - } catch (UnknownHostException uhe) { - Log.wtf("TetheringUtils", "Failed to construct Inet6Address from " - + Arrays.toString(ALL_NODES) + " and scopedId " + scopeId); - return null; - } - } -} |