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Commit cf0bfd98 authored by Android Build Merger (Role)'s avatar Android Build Merger (Role) Committed by Android (Google) Code Review
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Merge "Merge "Add SystemApi utility for raw sockets." am: 91c81c13 am: 510d2f82 am: 4593e079"

parents 5ec2516b 1f763242

api/system-current.txt

+11 −0
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@@ -4238,6 +4238,17 @@ package android.net.metrics { 














}



























package android.net.util {

























  public class SocketUtils {













    method public static void bindSocketToInterface(java.io.FileDescriptor, String) throws android.system.ErrnoException;













    method public static java.net.SocketAddress makeNetlinkSocketAddress(int, int);













    method public static java.net.SocketAddress makePacketSocketAddress(short, int);













    method public static java.net.SocketAddress makePacketSocketAddress(int, byte[]);













  }

























}



























package android.net.wifi {





























  public abstract class EasyConnectStatusCallback {

































core/java/android/net/util/SocketUtils.java
0 → 100644



+74
−0




























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/*













 * Copyright (C) 2015 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 static android.system.OsConstants.SOL_SOCKET;













import static android.system.OsConstants.SO_BINDTODEVICE;



























import android.annotation.SystemApi;













import android.net.NetworkUtils;













import android.system.ErrnoException;













import android.system.NetlinkSocketAddress;













import android.system.Os;













import android.system.PacketSocketAddress;



























import java.io.FileDescriptor;













import java.net.SocketAddress;



























/**













 * Collection of utilities to interact with raw sockets.













 * @hide













 */













@SystemApi













public class SocketUtils {













    /**













     * Create a raw datagram socket that is bound to an interface.













     *













     * <p>Data sent through the socket will go directly to the underlying network, ignoring VPNs.













     */













    public static void bindSocketToInterface(FileDescriptor socket, String iface)













            throws ErrnoException {













        // SO_BINDTODEVICE actually takes a string. This works because the first member













        // of struct ifreq is a NULL-terminated interface name.













        // TODO: add a setsockoptString()













        Os.setsockoptIfreq(socket, SOL_SOCKET, SO_BINDTODEVICE, iface);













        NetworkUtils.protectFromVpn(socket);













    }



























    /**













     * Make a socket address to communicate with netlink.













     */













    public static SocketAddress makeNetlinkSocketAddress(int portId, int groupsMask) {













        return new NetlinkSocketAddress(portId, groupsMask);













    }



























    /**













     * Make a socket address to bind to packet sockets.













     */













    public static SocketAddress makePacketSocketAddress(short protocol, int ifIndex) {













        return new PacketSocketAddress(protocol, ifIndex);













    }



























    /**













     * Make a socket address to send raw packets.













     */













    public static SocketAddress makePacketSocketAddress(int ifIndex, byte[] hwAddr) {













        return new PacketSocketAddress(ifIndex, hwAddr);













    }



























    private SocketUtils() {}













}
























packages/NetworkStack/src/android/net/dhcp/DhcpServer.java



+2
−6




























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@@ -29,7 +29,6 @@ import static android.system.OsConstants.AF_INET;













import static android.system.OsConstants.IPPROTO_UDP;















import static android.system.OsConstants.SOCK_DGRAM;















import static android.system.OsConstants.SOL_SOCKET;













import static android.system.OsConstants.SO_BINDTODEVICE;















import static android.system.OsConstants.SO_BROADCAST;















import static android.system.OsConstants.SO_REUSEADDR;

























@@ -45,6 +44,7 @@ import android.net.MacAddress;













import android.net.NetworkUtils;















import android.net.TrafficStats;















import android.net.util.SharedLog;













import android.net.util.SocketUtils;















import android.os.Handler;















import android.os.HandlerThread;















import android.os.Looper;










@@ -629,14 +629,10 @@ public class DhcpServer extends IDhcpServer.Stub {













            final int oldTag = TrafficStats.getAndSetThreadStatsTag(TAG_SYSTEM_DHCP_SERVER);















            try {















                mSocket = Os.socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);













                SocketUtils.bindSocketToInterface(mSocket, mIfName);















                Os.setsockoptInt(mSocket, SOL_SOCKET, SO_REUSEADDR, 1);













                // SO_BINDTODEVICE actually takes a string. This works because the first member













                // of struct ifreq is a NULL-terminated interface name.













                // TODO: add a setsockoptString()













                Os.setsockoptIfreq(mSocket, SOL_SOCKET, SO_BINDTODEVICE, mIfName);















                Os.setsockoptInt(mSocket, SOL_SOCKET, SO_BROADCAST, 1);















                Os.bind(mSocket, Inet4Address.ANY, DHCP_SERVER);













                NetworkUtils.protectFromVpn(mSocket);































                return mSocket;















            } catch (IOException | ErrnoException e) {

































services/net/java/android/net/apf/ApfFilter.java



+3
−2




























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@@ -20,6 +20,7 @@ import static android.net.util.NetworkConstants.ICMPV6_ECHO_REQUEST_TYPE;













import static android.net.util.NetworkConstants.ICMPV6_NEIGHBOR_ADVERTISEMENT;















import static android.net.util.NetworkConstants.ICMPV6_ROUTER_ADVERTISEMENT;















import static android.net.util.NetworkConstants.ICMPV6_ROUTER_SOLICITATION;













import static android.net.util.SocketUtils.makePacketSocketAddress;















import static android.system.OsConstants.AF_PACKET;















import static android.system.OsConstants.ARPHRD_ETHER;















import static android.system.OsConstants.ETH_P_ARP;










@@ -55,7 +56,6 @@ import android.os.PowerManager;













import android.os.SystemClock;















import android.system.ErrnoException;















import android.system.Os;













import android.system.PacketSocketAddress;















import android.text.format.DateUtils;















import android.util.Log;















import android.util.Pair;









@@ -72,6 +72,7 @@ import java.io.IOException;













import java.net.Inet4Address;















import java.net.Inet6Address;















import java.net.InetAddress;













import java.net.SocketAddress;















import java.net.SocketException;















import java.net.UnknownHostException;















import java.nio.BufferUnderflowException;










@@ -472,7 +473,7 @@ public class ApfFilter {













                installNewProgramLocked();















            }















            socket = Os.socket(AF_PACKET, SOCK_RAW, ETH_P_IPV6);













            PacketSocketAddress addr = new PacketSocketAddress(













            SocketAddress addr = makePacketSocketAddress(















                    (short) ETH_P_IPV6, mInterfaceParams.index);















            Os.bind(socket, addr);















            NetworkUtils.attachRaFilter(socket, mApfCapabilities.apfPacketFormat);

































services/net/java/android/net/dhcp/DhcpClient.java



+7
−7




























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@@ -28,6 +28,7 @@ import static android.net.dhcp.DhcpPacket.DHCP_SUBNET_MASK;













import static android.net.dhcp.DhcpPacket.DHCP_VENDOR_INFO;















import static android.net.dhcp.DhcpPacket.INADDR_ANY;















import static android.net.dhcp.DhcpPacket.INADDR_BROADCAST;













import static android.net.util.SocketUtils.makePacketSocketAddress;















import static android.system.OsConstants.AF_INET;















import static android.system.OsConstants.AF_PACKET;















import static android.system.OsConstants.ETH_P_IP;









@@ -35,7 +36,6 @@ import static android.system.OsConstants.IPPROTO_UDP;













import static android.system.OsConstants.SOCK_DGRAM;















import static android.system.OsConstants.SOCK_RAW;















import static android.system.OsConstants.SOL_SOCKET;













import static android.system.OsConstants.SO_BINDTODEVICE;















import static android.system.OsConstants.SO_BROADCAST;















import static android.system.OsConstants.SO_RCVBUF;















import static android.system.OsConstants.SO_REUSEADDR;









@@ -48,11 +48,11 @@ import android.net.metrics.DhcpClientEvent;













import android.net.metrics.DhcpErrorEvent;















import android.net.metrics.IpConnectivityLog;















import android.net.util.InterfaceParams;













import android.net.util.SocketUtils;















import android.os.Message;















import android.os.SystemClock;















import android.system.ErrnoException;















import android.system.Os;













import android.system.PacketSocketAddress;















import android.util.EventLog;















import android.util.Log;















import android.util.SparseArray;









@@ -70,6 +70,7 @@ import libcore.io.IoBridge;













import java.io.FileDescriptor;















import java.io.IOException;















import java.net.Inet4Address;













import java.net.SocketAddress;















import java.net.SocketException;















import java.nio.ByteBuffer;















import java.util.Arrays;










@@ -204,7 +205,7 @@ public class DhcpClient extends StateMachine {













    private InterfaceParams mIface;















    // TODO: MacAddress-ify more of this class hierarchy.















    private byte[] mHwAddr;













    private PacketSocketAddress mInterfaceBroadcastAddr;













    private SocketAddress mInterfaceBroadcastAddr;















    private int mTransactionId;















    private long mTransactionStartMillis;















    private DhcpResults mDhcpLease;










@@ -293,7 +294,7 @@ public class DhcpClient extends StateMachine {













        }































        mHwAddr = mIface.macAddr.toByteArray();













        mInterfaceBroadcastAddr = new PacketSocketAddress(mIface.index, DhcpPacket.ETHER_BROADCAST);













        mInterfaceBroadcastAddr = makePacketSocketAddress(mIface.index, DhcpPacket.ETHER_BROADCAST);















        return true;















    }

























@@ -309,7 +310,7 @@ public class DhcpClient extends StateMachine {













    private boolean initPacketSocket() {















        try {















            mPacketSock = Os.socket(AF_PACKET, SOCK_RAW, ETH_P_IP);













            PacketSocketAddress addr = new PacketSocketAddress((short) ETH_P_IP, mIface.index);













            SocketAddress addr = makePacketSocketAddress((short) ETH_P_IP, mIface.index);















            Os.bind(mPacketSock, addr);















            NetworkUtils.attachDhcpFilter(mPacketSock);















        } catch(SocketException|ErrnoException e) {









@@ -323,12 +324,11 @@ public class DhcpClient extends StateMachine {













        final int oldTag = TrafficStats.getAndSetThreadStatsTag(TrafficStats.TAG_SYSTEM_DHCP);















        try {















            mUdpSock = Os.socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);













            SocketUtils.bindSocketToInterface(mUdpSock, mIfaceName);















            Os.setsockoptInt(mUdpSock, SOL_SOCKET, SO_REUSEADDR, 1);













            Os.setsockoptIfreq(mUdpSock, SOL_SOCKET, SO_BINDTODEVICE, mIfaceName);















            Os.setsockoptInt(mUdpSock, SOL_SOCKET, SO_BROADCAST, 1);















            Os.setsockoptInt(mUdpSock, SOL_SOCKET, SO_RCVBUF, 0);















            Os.bind(mUdpSock, Inet4Address.ANY, DhcpPacket.DHCP_CLIENT);













            NetworkUtils.protectFromVpn(mUdpSock);















        } catch(SocketException|ErrnoException e) {















            Log.e(TAG, "Error creating UDP socket", e);















            return false;