Python socket.SO_BROADCAST Examples

def __init__(self, address='0.0.0.0', broadcast='255.255.255.255'):
        # Prepare a socket
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        sock.bind((address, 0))

        self._socket = sock

        self._listener = ListenerThread(sock, self._handle_packet)
        self._listener.start()

        self._packet_handlers = {}

        self._current_handler_id = 0

        self._broadcast = broadcast 

def send_packet(secret):
    try:
        broadcast_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        broadcast_socket.bind(('', 0))
        broadcast_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    except Exception as err:
        print "[!] Error creating broadcast socket: %s" % err
        sys.exit(ERROR)
    
    data = "nukemyluks_" + secret
    try:
        broadcast_socket.sendto(data, ('<broadcast>', DEFAULT_PORT))
        
    except Exception as err:
        print "[!] Error sending packet: %s" % err
        sys.exit(ERROR) 

def discover(self, name):
        sock = socket.socket(self.sock_family, socket.SOCK_DGRAM)

        try:
            if self.bcast:
                sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, True)
            data = brine.dump(("RPYC", "QUERY", (name,)))
            sock.sendto(data, (self.ip, self.port))
            sock.settimeout(self.timeout)

            try:
                data, _ = sock.recvfrom(MAX_DGRAM_SIZE)
            except (socket.error, socket.timeout):
                servers = ()
            else:
                servers = brine.load(data)
        finally:
            sock.close()
        return servers 

def addListener(self, addr, port, service):
        if self.isBroadcast(addr):
            self.etherAddrs[addr] = self.broadcastIpToMac(addr)
        elif self.isMulticast(addr):
            self.etherAddrs[addr] = self.multicastIpToMac(addr)
        else:
            # unicast -- we don't know yet which IP we'll want to send to
            self.etherAddrs[addr] = None

        # Set up the receiving socket and corresponding IP and interface information.
        # One receiving socket is required per multicast address.
        rx = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_UDP)
        rx.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        for interface in self.interfaces:
            (ifname, mac, ip, netmask) = self.getInterface(interface)

            # Add this interface to the receiving socket's list.
            if self.isBroadcast(addr):
                rx.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
            elif self.isMulticast(addr):
                packedAddress = struct.pack('4s4s', socket.inet_aton(addr), socket.inet_aton(ip))
                rx.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, packedAddress)

            # Generate a transmitter socket. Each interface
            # requires its own transmitting socket.
            if interface not in self.noTransmitInterfaces:
                tx = socket.socket(socket.AF_PACKET, socket.SOCK_RAW)
                tx.bind((ifname, 0))

                self.transmitters.append({'relay': {'addr': addr, 'port': port}, 'interface': ifname, 'addr': ip, 'mac': mac, 'netmask': netmask, 'socket': tx, 'service': service})

        rx.bind((addr, port))
        self.receivers.append(rx) 

def start(self, host, port, ssl):
        """Start the discovery process and broadcast the given information."""
        self._logger.debug("Starting clients discovery")
        self._info = "%s %d %s" % (host, port, ssl)
        # Create a datagram socket capable of broadcasting
        self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        self._socket.settimeout(0)  # No timeout
        self._socket.setblocking(0)  # No blocking

        self._read_notifier = QSocketNotifier(
            self._socket.fileno(), QSocketNotifier.Read, self
        )
        self._read_notifier.activated.connect(self._notify_read)
        self._read_notifier.setEnabled(True)
        self._started = True
        self._timer.start()
        self._send_request() 

def __init__(self, device, baud=None, input=True, broadcast=False, source_system=255, source_component=0, use_native=mavutil.default_native):
        self._logger = logging.getLogger(__name__)
        a = device.split(':')
        if len(a) != 2:
            self._logger.critical("UDP ports must be specified as host:port")
            sys.exit(1)
        self.port = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self.udp_server = input
        self.broadcast = False
        self.addresses = set()
        if input:
            self.port.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
            self.port.bind((a[0], int(a[1])))
        else:
            self.destination_addr = (a[0], int(a[1]))
            if broadcast:
                self.port.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
                self.broadcast = True
        mavutil.set_close_on_exec(self.port.fileno())
        self.port.setblocking(False)
        mavutil.mavfile.__init__(self, self.port.fileno(), device, source_system=source_system, source_component=source_component, input=input, use_native=use_native) 

def __init__(self, host, mac, timeout=10):
    self.host = host
    self.mac = mac
    self.timeout = timeout
    self.count = random.randrange(0xffff)
    self.key = bytearray([0x09, 0x76, 0x28, 0x34, 0x3f, 0xe9, 0x9e, 0x23, 0x76, 0x5c, 0x15, 0x13, 0xac, 0xcf, 0x8b, 0x02])
    self.iv = bytearray([0x56, 0x2e, 0x17, 0x99, 0x6d, 0x09, 0x3d, 0x28, 0xdd, 0xb3, 0xba, 0x69, 0x5a, 0x2e, 0x6f, 0x58])
    self.id = bytearray([0, 0, 0, 0])
    self.cs = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    self.cs.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    self.cs.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    self.cs.bind(('',0))
    self.type = "Unknown"
    self.lock = threading.Lock()

    if 'pyaes' in sys.modules:
        self.encrypt = self.encrypt_pyaes
        self.decrypt = self.decrypt_pyaes
    else:
        self.encrypt = self.encrypt_pycrypto
        self.decrypt = self.decrypt_pycrypto 

def _setup_connection(self, dstaddr, timeout=None):
        port = randint(10000, 60000)
        af, socktype, proto, _canonname, _sa = socket.getaddrinfo(dstaddr, port, socket.AF_INET, socket.SOCK_DGRAM)[0]
        s = socket.socket(af, socktype, proto)
        has_bind = 1
        for _i in range(0, 10):
            # We try to bind to a port for 10 tries
            try:
                s.bind((INADDR_ANY, randint(10000, 60000)))
                s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
                has_bind = 1
            except socket.error:
                pass
        if not has_bind:
            raise NetBIOSError, ('Cannot bind to a good UDP port', ERRCLASS_OS, errno.EAGAIN)
        self.__sock = s 

def __init__(self, own_id, is_client=True):
        self.address = get_ownip()
        self.broadcast = '255.255.255.255'
        self.port = settings.discovery_port
        self.own_id = own_id
        self.mask = IS_CLIENT if is_client else IS_SERVER

        # Create UDP socket
        self.handle = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)

        # Ask operating system to let us do broadcasts from socket
        self.handle.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        if hasattr(socket, 'SO_REUSEPORT'):
            self.handle.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
        else:
            self.handle.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        # Bind UDP socket to local port so we can receive pings
        self.handle.bind(('', self.port)) 

def __init__(self, mac):
        self.session_bytes_sent = 0
        self.session_bytes_recv = 0
        self.source_mac = b"\xff\xff\xff\xff\xff\xff" # put mac of your pc if mikrotik is not responding
        self.dest_mac = mac
        
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        self.sock.bind(('', 0))

        self.buffer = []
        self.work = True
        self.connected = False
        self.rm = threading.Thread(target=self.__recv_manager__)
        self.rm.start()

        self.__send_init__() 

def test_beacon_already_running():
    #
    # NB this one has to run without the beacon fixture
    #
    # Bind a socket on a random port before attempting
    # to start a beacon on that same port.
    #
    port = random.choice(nw0.config.DYNAMIC_PORTS)
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
    s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    s.bind(("", port))
    try:
        assert nw0.discovery._beacon is None
        nw0.discovery._start_beacon(port=port)
        assert nw0.discovery._beacon is nw0.discovery._remote_beacon
    finally:
        s.close()
        #
        # Make sure any future beacon use assumes it's not
        # already running.
        #
        nw0.discovery._stop_beacon() 

def run(self):
        UDP_IP = "0.0.0.0"
        UDP_PORT = 5108

        sock = socket.socket(socket.AF_INET, # Internet
                             socket.SOCK_DGRAM) # UDP
        sock.bind((UDP_IP, UDP_PORT))

        while (True):
            data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes

            spl = data.split("::")
            if (spl[0] == "0"):
                print "received discovery broadcast"
                s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
                s.bind(('', 0))
                s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
                uuid = str(configmanager.uuid)
                pairport = str(configmanager.port)
                hostname = socket.gethostname()
                data = uuid+"::"+hostname+"::"+pairport
                s.sendto(data, (addr[0], UDP_PORT)) 

def run(self):
        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        port = str(ui.local_port_stream)
        print(ui.local_ip_stream, '-----ip--', ui.local_port_stream)
        msg = 'this is kawaii-player At: port={} https={} pc_to_pc_casting={} msg={}'.format(
            port, ui.https_media_server, ui.pc_to_pc_casting, ui.broadcast_message)
        msg = bytes(msg , 'utf-8')
        if ui.https_media_server:
            https_val = 'https'
        else:
            https_val = 'http'
        subnet_mask = ui.local_ip_stream.rsplit('.', 1)[0] + '.255'
        notify_msg = '{0}://{1}:{2} started broadcasting. Now Clients can Discover it'.format(
            https_val, ui.local_ip_stream, ui.local_port_stream)
        send_notification(notify_msg)
        print(subnet_mask)
        while ui.broadcast_server:
            s.sendto(msg, (subnet_mask,12345))
            time.sleep(1)
        send_notification('Broadcasting Stopped') 

def wake_on_lan(mac_address):
    if len(mac_address) == 12:
        pass
    elif len(mac_address) == 12 + 5:
        sep = mac_address[2]
        mac_address = mac_address.replace(sep, '')
    else:
        raise ValueError('Wrong MAC Address format!')  # (EN) Incorrect MAC format!

    data = ''.join(['FFFFFFFFFFFF', mac_address * 20])
    send_data = ''

    for i in range(0, len(data), 2):
        send_data = ''.join([send_data, struct.pack('B', int(data[i: i + 2], 16))])

    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    s.sendto(send_data, ('<broadcast>', 7)) 

def discover(match="", timeout=2):
	s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
	s.sendto(ssdpre, (ssdpsrc["ip_address"], ssdpsrc["port"]))
	s.settimeout(timeout)
	responses = []
	print ""
	try:
		while True:
			response = s.recv(1000)
			if match in response:
				print response
				responses.append(response)
	except:
		pass
	return responses 

def reboot(timeout=2):
	s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
	s.sendto(exptpack1, (ssdpsrc["ip_address"], ssdpsrc["port"]))
	s.settimeout(timeout)
	s.settimeout(timeout)
	trg = raw_input("\nTarget: ")
	tpg = int(input("Port: "))
	for i in range(4):
		sys.stdout.write("\rSending Reboot Payload" + "." * i)
		time.sleep(0.05)
	print ""
	s.sendto(exptpack1, (trg, tpg))
	try:
		s.connect((str(tpg), int(tpg)))
		time.sleep(0.1)
		s.send(u"`REBOOT`")
		s.close()
		time.sleep(1)
		s.connect((str(tpg), int(tpg)))
	except:
		print "UPnP Device Rebooted"
	s.close() 

def __init__(self):
		super().__init__(databaseSchema=self.DATABASE)

		self._devices = dict()
		self._broadcastRoom = ''
		self._broadcastFlag = threading.Event()

		self._broadcastPort = None
		self._broadcastTimer = None

		self._flashThread = None

		self._listenPort = None

		self._broadcastSocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
		self._broadcastSocket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
		self._broadcastSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

		self._listenSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		self._listenSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
		self._listenSocket.settimeout(2) 

def wake_on_lan(macaddress):
    """Power on remote computers using Wake On LAN."""
    # Handle MACs with or without separators.
    if len(macaddress) == 12:
        pass
    elif len(macaddress) == 12 + 5:
        sep = macaddress[2]
        macaddress = macaddress.replace(sep, '')
    else:
        raise ValueError('Incorrect MAC address format')

    print("Sending magic packet to", macaddress)
    packet = bytes.fromhex(''.join(['FFFFFFFFFFFF', macaddress * 20]))

    # Broadcast it to the LAN.
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    for brd in get_broadcast_list():
        sock.sendto(packet, (brd, 9)) 

def discover(self, name):
        sock = socket.socket(self.sock_family, socket.SOCK_DGRAM)

        try:
            if self.bcast:
                sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, True)
            data = brine.dump(("RPYC", "QUERY", (name,)))
            sock.sendto(data, (self.ip, self.port))
            sock.settimeout(self.timeout)

            try:
                data, _ = sock.recvfrom(MAX_DGRAM_SIZE)
            except (socket.error, socket.timeout):
                servers = ()
            else:
                servers = brine.load(data)
        finally:
            sock.close()
        return servers 

def _setup_connection(self, dstaddr, timeout=None):
        port = randint(10000, 60000)
        af, socktype, proto, _canonname, _sa = socket.getaddrinfo(dstaddr, port, socket.AF_INET, socket.SOCK_DGRAM)[0]
        s = socket.socket(af, socktype, proto)
        has_bind = 1
        for _i in range(0, 10):
            # We try to bind to a port for 10 tries
            try:
                s.bind((INADDR_ANY, randint(10000, 60000)))
                s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
                has_bind = 1
            except socket.error:
                pass
        if not has_bind:
            raise NetBIOSError, ('Cannot bind to a good UDP port', ERRCLASS_OS, errno.EAGAIN)
        self.__sock = s 

def setup(ssid, password, security_mode):
  # Security mode options are (0 - none, 1 = WEP, 2 = WPA1, 3 = WPA2, 4 = WPA1/2)
  payload = bytearray(0x88)
  payload[0x26] = 0x14  # This seems to always be set to 14
  # Add the SSID to the payload
  ssid_start = 68
  ssid_length = 0
  for letter in ssid:
    payload[(ssid_start + ssid_length)] = ord(letter)
    ssid_length += 1
  # Add the WiFi password to the payload
  pass_start = 100
  pass_length = 0
  for letter in password:
    payload[(pass_start + pass_length)] = ord(letter)
    pass_length += 1

  payload[0x84] = ssid_length  # Character length of SSID
  payload[0x85] = pass_length  # Character length of password
  payload[0x86] = security_mode  # Type of encryption (00 - none, 01 = WEP, 02 = WPA1, 03 = WPA2, 04 = WPA1/2)

  checksum = 0xbeaf
  for i in range(len(payload)):
    checksum += payload[i]
    checksum = checksum & 0xffff

  payload[0x20] = checksum & 0xff  # Checksum 1 position
  payload[0x21] = checksum >> 8  # Checksum 2 position

  sock = socket.socket(socket.AF_INET,  # Internet
                       socket.SOCK_DGRAM)  # UDP
  sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
  sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
  sock.sendto(payload, ('255.255.255.255', 80)) 

def setBroadcastAllowed(self, enabled):
        """
        Set whether this port may broadcast. This is disabled by default.

        @param enabled: Whether the port may broadcast.
        @type enabled: L{bool}
        """
        self.socket.setsockopt(
            socket.SOL_SOCKET, socket.SO_BROADCAST, enabled) 

def send_magic_packet(*macs, **kwargs):
    """
    Wakes the computer with the given mac address if wake on lan is
    enabled on that host.

    Keyword arguments:
    :arguments macs: One or more macaddresses of machines to wake.
    :key ip_address: the ip address of the host to send the magic packet
                     to (default "255.255.255.255")
    :key port: the port of the host to send the magic packet to
               (default 9)

    """
    packets = []
    ip = kwargs.pop('ip_address', BROADCAST_IP)
    port = kwargs.pop('port', DEFAULT_PORT)
    for k in kwargs:
        raise TypeError('send_magic_packet() got an unexpected keyword ' 'argument {!r}'.format(k))

    for mac in macs:
        packet = create_magic_packet(mac)
        packets.append(packet)

    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
    sock.connect((ip, port))
    for packet in packets:
        sock.send(packet)
    sock.close() 

def register(self, aliases, port, interface = ""):
        self.logger.info("registering on %s:%s", self.ip, self.port)
        sock = socket.socket(self.sock_family, socket.SOCK_DGRAM)
        sock.bind((interface, 0))
        try:
            if self.bcast:
                sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, True)
            data = brine.dump(("RPYC", "REGISTER", (aliases, port)))
            sock.sendto(data, (self.ip, self.port))
    
            tmax = time.time() + self.timeout
            while time.time() < tmax:
                sock.settimeout(tmax - time.time())
                try:
                    data, address = sock.recvfrom(MAX_DGRAM_SIZE)
                    rip, rport = address[:2]
                except socket.timeout:
                    self.logger.warn("no registry acknowledged")
                    return False
                if rport != self.port:
                    continue
                try:
                    reply = brine.load(data)
                except Exception:
                    continue
                if reply == "OK":
                    self.logger.info("registry %s:%s acknowledged", rip, rport)
                    return True
            else:
                self.logger.warn("no registry acknowledged")
                return False
        finally:
            sock.close() 

def setBroadcastAllowed(self, enabled):
        """
        Set whether this port may broadcast. This is disabled by default.

        @param enabled: Whether the port may broadcast.
        @type enabled: L{bool}
        """
        self.socket.setsockopt(
            socket.SOL_SOCKET, socket.SO_BROADCAST, enabled) 

def getBroadcastAllowed(self):
        """
        Checks if broadcast is currently allowed on this port.

        @return: Whether this port may broadcast.
        @rtype: L{bool}
        """
        return operator.truth(
            self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST)) 

def run(self):
        # thanks to python-miio https://github.com/rytilahti/python-miio
        try:
            timeout = int(self.args["timeout"])
        except:
            timeout = 5
        addrs = [] # To avoid duplicates
        if str(self.args["rhost"]) != "None":
            addr = self.args["rhost"]
        else:
            addr = '255.255.255.255'

        print("Sending packets...")
        helobytes = bytes.fromhex('21310020ffffffffffffffffffffffffffffffffffffffffffffffffffffffff')

        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        s.settimeout(timeout)
        s.sendto(helobytes, (addr, 54321))

        while True:
            try:
                data, addr = s.recvfrom(1024)
                token = ""
                try:
                    #TODO
                    token = str(data[16:]).replace("b'","").replace("'","").replace("\\x","")
                except:
                    token = ""
    
                if addr[0] not in addrs:
                    print_info(f"Xiaomi Device >> {addr[0]} - Token({token})")
                    addrs.append(addr[0])
            except socket.timeout:
                print_ok("Discovery done")
                break  
            except Exception as ex:
                print_error(f"Error while reading discover results: {ex}")
                break 

def unregister(self, port):
        self.logger.info("unregistering from %s:%s", self.ip, self.port)
        sock = socket.socket(self.sock_family, socket.SOCK_DGRAM)
        try:
            if self.bcast:
                sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, True)
            data = brine.dump(("RPYC", "UNREGISTER", (port,)))
            sock.sendto(data, (self.ip, self.port))
        finally:
            sock.close() 

def broadcast_panic():
  msg = correct_hash
  s = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )
  s.setsockopt( socket.SOL_SOCKET, socket.SO_BROADCAST, 1 )
  s.sendto(msg, ("<broadcast>", 29899 ) )
  s.close() 

def getBroadcastAllowed(self):
        """
        Checks if broadcast is currently allowed on this port.

        @return: Whether this port may broadcast.
        @rtype: L{bool}
        """
        return operator.truth(
            self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST))