Examples with FileDescriptor java.io.FileDescriptor used on opensource projects

Example 91 with FileDescriptor

use of java.io.FileDescriptor 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 92 with FileDescriptor

use of java.io.FileDescriptor in project android_frameworks_base by ResurrectionRemix.

the class LocalSocketTest method testBasic.

@SmallTest
public void testBasic() throws Exception {
    LocalServerSocket ss;
    LocalSocket ls;
    LocalSocket ls1;
    ss = new LocalServerSocket("android.net.LocalSocketTest");
    ls = new LocalSocket();
    ls.connect(new LocalSocketAddress("android.net.LocalSocketTest"));
    ls1 = ss.accept();
    // Test trivial read and write
    ls.getOutputStream().write(42);
    assertEquals(42, ls1.getInputStream().read());
    // Test getting credentials
    Credentials c = ls1.getPeerCredentials();
    MoreAsserts.assertNotEqual(0, c.getPid());
    // Test sending and receiving file descriptors
    ls.setFileDescriptorsForSend(new FileDescriptor[] { FileDescriptor.in });
    ls.getOutputStream().write(42);
    assertEquals(42, ls1.getInputStream().read());
    FileDescriptor[] out = ls1.getAncillaryFileDescriptors();
    assertEquals(1, out.length);
    // Test multible byte write and available()
    ls1.getOutputStream().write(new byte[] { 0, 1, 2, 3, 4, 5 }, 1, 5);
    assertEquals(1, ls.getInputStream().read());
    assertEquals(4, ls.getInputStream().available());
    byte[] buffer = new byte[16];
    int countRead;
    countRead = ls.getInputStream().read(buffer, 1, 15);
    assertEquals(4, countRead);
    assertEquals(2, buffer[1]);
    assertEquals(3, buffer[2]);
    assertEquals(4, buffer[3]);
    assertEquals(5, buffer[4]);
    // Try various array-out-of-bound cases
    try {
        ls.getInputStream().read(buffer, 1, 16);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    try {
        ls.getOutputStream().write(buffer, 1, 16);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    try {
        ls.getOutputStream().write(buffer, -1, 15);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    try {
        ls.getOutputStream().write(buffer, 0, -1);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    try {
        ls.getInputStream().read(buffer, -1, 15);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    try {
        ls.getInputStream().read(buffer, 0, -1);
        fail("expected exception");
    } catch (ArrayIndexOutOfBoundsException ex) {
    // excpected
    }
    // Try read of length 0
    ls.getOutputStream().write(42);
    countRead = ls1.getInputStream().read(buffer, 0, 0);
    assertEquals(0, countRead);
    assertEquals(42, ls1.getInputStream().read());
    ss.close();
    ls.close();
    try {
        ls.getOutputStream().write(42);
        fail("expected exception");
    } catch (IOException ex) {
    // Expected
    }
    try {
        ls.getInputStream().read();
        fail("expected exception");
    } catch (IOException ex) {
    // Expected
    }
    try {
        ls1.getOutputStream().write(42);
        fail("expected exception");
    } catch (IOException ex) {
    // Expected
    }
    // Try read on socket whose peer has closed
    assertEquals(-1, ls1.getInputStream().read());
    ls1.close();
}

Example 93 with FileDescriptor

use of java.io.FileDescriptor 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 94 with FileDescriptor

use of java.io.FileDescriptor in project android_frameworks_base by ResurrectionRemix.

the class AccessoryChat method openAccessory.

private void openAccessory(UsbAccessory accessory) {
    Log.d(TAG, "openAccessory: " + accessory);
    mFileDescriptor = mUsbManager.openAccessory(accessory);
    if (mFileDescriptor != null) {
        FileDescriptor fd = mFileDescriptor.getFileDescriptor();
        mInputStream = new FileInputStream(fd);
        mOutputStream = new FileOutputStream(fd);
        Thread thread = new Thread(null, this, "AccessoryChat");
        thread.start();
        Log.d(TAG, "openAccessory succeeded");
    } else {
        Log.d(TAG, "openAccessory fail");
    }
}

Example 95 with FileDescriptor

use of java.io.FileDescriptor in project android_frameworks_base by ResurrectionRemix.

the class BluetoothSocket method bindListen.

/**
     * Currently returns unix errno instead of throwing IOException,
     * so that BluetoothAdapter can check the error code for EADDRINUSE
     */
/*package*/
int bindListen() {
    int ret;
    if (mSocketState == SocketState.CLOSED)
        return EBADFD;
    IBluetooth bluetoothProxy = BluetoothAdapter.getDefaultAdapter().getBluetoothService(null);
    if (bluetoothProxy == null) {
        Log.e(TAG, "bindListen fail, reason: bluetooth is off");
        return -1;
    }
    try {
        mPfd = bluetoothProxy.createSocketChannel(mType, mServiceName, mUuid, mPort, getSecurityFlags());
    } catch (RemoteException e) {
        Log.e(TAG, Log.getStackTraceString(new Throwable()));
        return -1;
    }
    // read out port number
    try {
        synchronized (this) {
            if (DBG)
                Log.d(TAG, "bindListen(), SocketState: " + mSocketState + ", mPfd: " + mPfd);
            if (mSocketState != SocketState.INIT)
                return EBADFD;
            if (mPfd == null)
                return -1;
            FileDescriptor fd = mPfd.getFileDescriptor();
            if (DBG)
                Log.d(TAG, "bindListen(), new LocalSocket ");
            mSocket = new LocalSocket(fd);
            if (DBG)
                Log.d(TAG, "bindListen(), new LocalSocket.getInputStream() ");
            mSocketIS = mSocket.getInputStream();
            mSocketOS = mSocket.getOutputStream();
        }
        if (DBG)
            Log.d(TAG, "bindListen(), readInt mSocketIS: " + mSocketIS);
        int channel = readInt(mSocketIS);
        synchronized (this) {
            if (mSocketState == SocketState.INIT)
                mSocketState = SocketState.LISTENING;
        }
        if (DBG)
            Log.d(TAG, "channel: " + channel);
        if (mPort <= -1) {
            mPort = channel;
        }
        // else ASSERT(mPort == channel)
        ret = 0;
    } catch (IOException e) {
        if (mPfd != null) {
            try {
                mPfd.close();
            } catch (IOException e1) {
                Log.e(TAG, "bindListen, close mPfd: " + e1);
            }
            mPfd = null;
        }
        Log.e(TAG, "bindListen, fail to get port number, exception: " + e);
        return -1;
    }
    return ret;
}