Examples with SocketException java.net.SocketException used on opensource projects

Example 36 with SocketException

use of java.net.SocketException in project android_frameworks_base by ResurrectionRemix.

the class IpReachabilityMonitor method probeNeighbor.

/**
     * Make the kernel perform neighbor reachability detection (IPv4 ARP or IPv6 ND)
     * for the given IP address on the specified interface index.
     *
     * @return 0 if the request was successfully passed to the kernel; otherwise return
     *         a non-zero error code.
     */
private static int probeNeighbor(int ifIndex, InetAddress ip) {
    final String msgSnippet = "probing ip=" + ip.getHostAddress() + "%" + ifIndex;
    if (DBG) {
        Log.d(TAG, msgSnippet);
    }
    final byte[] msg = RtNetlinkNeighborMessage.newNewNeighborMessage(1, ip, StructNdMsg.NUD_PROBE, ifIndex, null);
    int errno = -OsConstants.EPROTO;
    try (NetlinkSocket nlSocket = new NetlinkSocket(OsConstants.NETLINK_ROUTE)) {
        final long IO_TIMEOUT = 300L;
        nlSocket.connectToKernel();
        nlSocket.sendMessage(msg, 0, msg.length, IO_TIMEOUT);
        final ByteBuffer bytes = nlSocket.recvMessage(IO_TIMEOUT);
        // recvMessage() guaranteed to not return null if it did not throw.
        final NetlinkMessage response = NetlinkMessage.parse(bytes);
        if (response != null && response instanceof NetlinkErrorMessage && (((NetlinkErrorMessage) response).getNlMsgError() != null)) {
            errno = ((NetlinkErrorMessage) response).getNlMsgError().error;
            if (errno != 0) {
                // TODO: consider ignoring EINVAL (-22), which appears to be
                // normal when probing a neighbor for which the kernel does
                // not already have / no longer has a link layer address.
                Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + response.toString());
            }
        } else {
            String errmsg;
            if (response == null) {
                bytes.position(0);
                errmsg = "raw bytes: " + NetlinkConstants.hexify(bytes);
            } else {
                errmsg = response.toString();
            }
            Log.e(TAG, "Error " + msgSnippet + ", errmsg=" + errmsg);
        }
    } catch (ErrnoException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -e.errno;
    } catch (InterruptedIOException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -OsConstants.ETIMEDOUT;
    } catch (SocketException e) {
        Log.e(TAG, "Error " + msgSnippet, e);
        errno = -OsConstants.EIO;
    }
    return errno;
}

Example 37 with SocketException

use of java.net.SocketException in project android_frameworks_base by ResurrectionRemix.

the class ApfFilter method maybeStartFilter.

/**
     * Attempt to start listening for RAs and, if RAs are received, generating and installing
     * filters to ignore useless RAs.
     */
@VisibleForTesting
void maybeStartFilter() {
    FileDescriptor socket;
    try {
        mHardwareAddress = mNetworkInterface.getHardwareAddress();
        synchronized (this) {
            // Install basic filters
            installNewProgramLocked();
        }
        socket = Os.socket(AF_PACKET, SOCK_RAW, ETH_P_IPV6);
        PacketSocketAddress addr = new PacketSocketAddress((short) ETH_P_IPV6, mNetworkInterface.getIndex());
        Os.bind(socket, addr);
        NetworkUtils.attachRaFilter(socket, mApfCapabilities.apfPacketFormat);
    } catch (SocketException | ErrnoException e) {
        Log.e(TAG, "Error starting filter", e);
        return;
    }
    mReceiveThread = new ReceiveThread(socket);
    mReceiveThread.start();
}

Example 38 with SocketException

use of java.net.SocketException in project android_frameworks_base by ResurrectionRemix.

the class DhcpClient method initInterface.

private boolean initInterface() {
    try {
        mIface = NetworkInterface.getByName(mIfaceName);
        mHwAddr = mIface.getHardwareAddress();
        mInterfaceBroadcastAddr = new PacketSocketAddress(mIface.getIndex(), DhcpPacket.ETHER_BROADCAST);
        return true;
    } catch (SocketException | NullPointerException e) {
        Log.e(TAG, "Can't determine ifindex or MAC address for " + mIfaceName, e);
        return false;
    }
}

Example 39 with SocketException

use of java.net.SocketException in project android_frameworks_base by ResurrectionRemix.

the class NetworkTest method testBindSocketOfInvalidFdThrows.

@SmallTest
public void testBindSocketOfInvalidFdThrows() throws Exception {
    final FileDescriptor fd = new FileDescriptor();
    assertFalse(fd.valid());
    try {
        mNetwork.bindSocket(fd);
        fail("SocketException not thrown");
    } catch (SocketException expected) {
    }
}

Example 40 with SocketException

use of java.net.SocketException in project android_frameworks_base by ResurrectionRemix.

the class NetworkTest method testBindSocketOfNonSocketFdThrows.

@SmallTest
public void testBindSocketOfNonSocketFdThrows() throws Exception {
    final File devNull = new File("/dev/null");
    assertTrue(devNull.canRead());
    final FileInputStream fis = new FileInputStream(devNull);
    assertTrue(null != fis.getFD());
    assertTrue(fis.getFD().valid());
    try {
        mNetwork.bindSocket(fis.getFD());
        fail("SocketException not thrown");
    } catch (SocketException expected) {
    }
}