How to use

sendPacket

method

in

libcore.net.RawSocket

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}

/**
 * Writes a raw packet to the desired interface.  A L2 header will
 * be added which includes the specified destination address, our
 * source MAC, and the specified protocol type.  The caller is responsible
 * for computing correct IP-header and payload checksums.
 */
public int write(byte[] destMac, byte[] packet, int offset, int byteCount) {
  if (destMac == null) {
    throw new NullPointerException("destMac == null");
  }
  if (packet == null) {
    throw new NullPointerException("packet == null");
  }
  Arrays.checkOffsetAndCount(packet.length, offset, byteCount);
  if (destMac.length != 6) {
    throw new IllegalArgumentException("MAC length must be 6: "
      + destMac.length);
  }
  return sendPacket(fd, mInterfaceName, mProtocolType, destMac, packet,
    offset, byteCount);
}