Examples with LocalSocket android.net.LocalSocket used on opensource projects

Example 46 with LocalSocket

use of android.net.LocalSocket in project android_frameworks_base by crdroidandroid.

the class NativeDaemonConnector method listenToSocket.

private void listenToSocket() throws IOException {
    LocalSocket socket = null;
    try {
        socket = new LocalSocket();
        LocalSocketAddress address = determineSocketAddress();
        socket.connect(address);
        InputStream inputStream = socket.getInputStream();
        synchronized (mDaemonLock) {
            mOutputStream = socket.getOutputStream();
        }
        mCallbacks.onDaemonConnected();
        FileDescriptor[] fdList = null;
        byte[] buffer = new byte[BUFFER_SIZE];
        int start = 0;
        while (true) {
            int count = inputStream.read(buffer, start, BUFFER_SIZE - start);
            if (count < 0) {
                loge("got " + count + " reading with start = " + start);
                break;
            }
            fdList = socket.getAncillaryFileDescriptors();
            // Add our starting point to the count and reset the start.
            count += start;
            start = 0;
            for (int i = 0; i < count; i++) {
                if (buffer[i] == 0) {
                    // Note - do not log this raw message since it may contain
                    // sensitive data
                    final String rawEvent = new String(buffer, start, i - start, StandardCharsets.UTF_8);
                    boolean releaseWl = false;
                    try {
                        final NativeDaemonEvent event = NativeDaemonEvent.parseRawEvent(rawEvent, fdList);
                        log("RCV <- {" + event + "}");
                        if (event.isClassUnsolicited()) {
                            // TODO: migrate to sending NativeDaemonEvent instances
                            if (mCallbacks.onCheckHoldWakeLock(event.getCode()) && mWakeLock != null) {
                                mWakeLock.acquire();
                                releaseWl = true;
                            }
                            Message msg = mCallbackHandler.obtainMessage(event.getCode(), uptimeMillisInt(), 0, event.getRawEvent());
                            if (mCallbackHandler.sendMessage(msg)) {
                                releaseWl = false;
                            }
                        } else {
                            mResponseQueue.add(event.getCmdNumber(), event);
                        }
                    } catch (IllegalArgumentException e) {
                        log("Problem parsing message " + e);
                    } finally {
                        if (releaseWl) {
                            mWakeLock.release();
                        }
                    }
                    start = i + 1;
                }
            }
            if (start == 0) {
                log("RCV incomplete");
            }
            // buffer and read again.
            if (start != count) {
                final int remaining = BUFFER_SIZE - start;
                System.arraycopy(buffer, start, buffer, 0, remaining);
                start = remaining;
            } else {
                start = 0;
            }
        }
    } catch (IOException ex) {
        loge("Communications error: " + ex);
        throw ex;
    } finally {
        synchronized (mDaemonLock) {
            if (mOutputStream != null) {
                try {
                    loge("closing stream for " + mSocket);
                    mOutputStream.close();
                } catch (IOException e) {
                    loge("Failed closing output stream: " + e);
                }
                mOutputStream = null;
            }
        }
        try {
            if (socket != null) {
                socket.close();
            }
        } catch (IOException ex) {
            loge("Failed closing socket: " + ex);
        }
    }
}

Example 47 with LocalSocket

use of android.net.LocalSocket in project android_frameworks_base by crdroidandroid.

the class ProcessList method openLmkdSocket.

private static boolean openLmkdSocket() {
    try {
        sLmkdSocket = new LocalSocket(LocalSocket.SOCKET_SEQPACKET);
        sLmkdSocket.connect(new LocalSocketAddress("lmkd", LocalSocketAddress.Namespace.RESERVED));
        sLmkdOutputStream = sLmkdSocket.getOutputStream();
    } catch (IOException ex) {
        Slog.w(TAG, "lowmemorykiller daemon socket open failed");
        sLmkdSocket = null;
        return false;
    }
    return true;
}

Example 48 with LocalSocket

use of android.net.LocalSocket in project android_frameworks_base by crdroidandroid.

the class BluetoothSocket method connect.

/**
     * Attempt to connect to a remote device.
     * <p>This method will block until a connection is made or the connection
     * fails. If this method returns without an exception then this socket
     * is now connected.
     * <p>Creating new connections to
     * remote Bluetooth devices should not be attempted while device discovery
     * is in progress. Device discovery is a heavyweight procedure on the
     * Bluetooth adapter and will significantly slow a device connection.
     * Use {@link BluetoothAdapter#cancelDiscovery()} to cancel an ongoing
     * discovery. Discovery is not managed by the Activity,
     * but is run as a system service, so an application should always call
     * {@link BluetoothAdapter#cancelDiscovery()} even if it
     * did not directly request a discovery, just to be sure.
     * <p>{@link #close} can be used to abort this call from another thread.
     * @throws IOException on error, for example connection failure
     */
public void connect() throws IOException {
    if (mDevice == null)
        throw new IOException("Connect is called on null device");
    try {
        if (mSocketState == SocketState.CLOSED)
            throw new IOException("socket closed");
        IBluetooth bluetoothProxy = BluetoothAdapter.getDefaultAdapter().getBluetoothService(null);
        if (bluetoothProxy == null)
            throw new IOException("Bluetooth is off");
        mPfd = bluetoothProxy.connectSocket(mDevice, mType, mUuid, mPort, getSecurityFlags());
        synchronized (this) {
            if (DBG)
                Log.d(TAG, "connect(), SocketState: " + mSocketState + ", mPfd: " + mPfd);
            if (mSocketState == SocketState.CLOSED)
                throw new IOException("socket closed");
            if (mPfd == null)
                throw new IOException("bt socket connect failed");
            FileDescriptor fd = mPfd.getFileDescriptor();
            mSocket = new LocalSocket(fd);
            mSocketIS = mSocket.getInputStream();
            mSocketOS = mSocket.getOutputStream();
        }
        int channel = readInt(mSocketIS);
        if (channel <= 0)
            throw new IOException("bt socket connect failed");
        mPort = channel;
        waitSocketSignal(mSocketIS);
        synchronized (this) {
            if (mSocketState == SocketState.CLOSED)
                throw new IOException("bt socket closed");
            mSocketState = SocketState.CONNECTED;
        }
    } catch (RemoteException e) {
        Log.e(TAG, Log.getStackTraceString(new Throwable()));
        throw new IOException("unable to send RPC: " + e.getMessage());
    }
}

Example 49 with LocalSocket

use of android.net.LocalSocket in project android_frameworks_base by crdroidandroid.

the class InstallerConnection method connect.

private boolean connect() {
    if (mSocket != null) {
        return true;
    }
    Slog.i(TAG, "connecting...");
    try {
        mSocket = new LocalSocket();
        LocalSocketAddress address = new LocalSocketAddress("installd", LocalSocketAddress.Namespace.RESERVED);
        mSocket.connect(address);
        mIn = mSocket.getInputStream();
        mOut = mSocket.getOutputStream();
    } catch (IOException ex) {
        disconnect();
        return false;
    }
    return true;
}

Example 50 with LocalSocket

use of android.net.LocalSocket in project android_frameworks_base by crdroidandroid.

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();
}