Python socket.IPPROTO_ICMP Examples

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def init_func(self, creator_fd):
        self.__creator_fd = creator_fd
        self.__sent = []

        family = socket.AF_INET

        s = socket.socket(family, socket.SOCK_RAW, socket.IPPROTO_UDP | socket.IPPROTO_ICMP | socket.IPPROTO_UDP | 136)
        s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
        s.setblocking(0)

        self.__socket = s
        self.set_fileno(s.fileno())
        self.register(self.fileno)
        self.add_evt_read(self.fileno)

        return self.fileno 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def _open_icmp_socket(family):
        """
        Opens a socket suitable for sending/receiving ICMP echo
        requests/responses.

        """
        try:
            proto = socket.IPPROTO_ICMP if family == socket.AF_INET \
                    else _IPPROTO_ICMPV6

            return socket.socket(family, socket.SOCK_RAW, proto)

        except socket.error as e:
            if e.errno == 1:
                raise MultiPingError("Root privileges required for sending "
                                     "ICMP")
            # Re-raise any other error
            raise 

def ipv4_parseable(ip_header_data):
    """Return True if an IPv4 packet we could parse."""
    # TODO: python library parsers are fragile
    # Perform sanity checking on the header to limit exposure of the parser
    ipv4_header = struct.unpack('!BBHHHBBH4s4s', ip_header_data[:IPV4_HEADER_SIZE])
    header_size = (ipv4_header[0] & 0xf) * 32 / 8
    if header_size < IPV4_HEADER_SIZE:
        return False
    flags = ipv4_header[4] >> 12
    # MF bit set
    if flags & 0x2:
        return False
    # fragment - discard
    ip_off = ipv4_header[4] & 0xfff
    if ip_off:
        return False
    # not a protocol conservatively known to parse
    protocol = ipv4_header[6]
    if protocol not in (socket.IPPROTO_ICMP, socket.IPPROTO_UDP, socket.IPPROTO_TCP):
        return False
    return True 

def echo_reply(vid, eth_src, eth_dst, src_ip, dst_ip, data):
    """Return an ICMP echo reply packet.

    Args:
        vid (int or None): VLAN VID to use (or None).
        eth_src (str): Ethernet source address.
        eth_dst (str): destination Ethernet MAC address.
        src_ip (ipaddress.IPv4Address): source IPv4 address.
        dst_ip (ipaddress.IPv4Address): destination IPv4 address.
    Returns:
        ryu.lib.packet.icmp: serialized ICMP echo reply packet.
    """
    pkt = build_pkt_header(vid, eth_src, eth_dst, valve_of.ether.ETH_TYPE_IP)
    ipv4_pkt = ipv4.ipv4(
        dst=dst_ip, src=src_ip, proto=valve_of.inet.IPPROTO_ICMP)
    pkt.add_protocol(ipv4_pkt)
    icmp_pkt = icmp.icmp(
        type_=icmp.ICMP_ECHO_REPLY, code=icmp.ICMP_ECHO_REPLY_CODE,
        data=data)
    pkt.add_protocol(icmp_pkt)
    pkt.serialize()
    return pkt 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def ping(dest_addr: str, timeout: int = 4, unit: str = "s", src_addr: str = None, ttl: int = 64, seq: int = 0, size: int = 56, interface: str = None) -> float or None:
    """
    Send one ping to destination address with the given timeout.

    Args:
        dest_addr: The destination address, can be an IP address or a domain name. Ex. "192.168.1.1"/"example.com"
        timeout: Time to wait for a response, in seconds. Default is 4s, same as Windows CMD. (default 4)
        unit: The unit of returned value. "s" for seconds, "ms" for milliseconds. (default "s")
        src_addr: WINDOWS ONLY. The IP address to ping from. This is for multiple network interfaces. Ex. "192.168.1.20". (default None)
        interface: LINUX ONLY. The gateway network interface to ping from. Ex. "wlan0". (default None)
        ttl: The Time-To-Live of the outgoing packet. Default is 64, same as in Linux and macOS. (default 64)
        seq: ICMP packet sequence, usually increases from 0 in the same process. (default 0)
        size: The ICMP packet payload size in bytes. If the input of this is less than the bytes of a double format (usually 8), the size of ICMP packet payload is 8 bytes to hold a time. The max should be the router_MTU(Usually 1480) - IP_Header(20) - ICMP_Header(8). Default is 56, same as in macOS. (default 56)

    Returns:
        The delay in seconds/milliseconds or None on timeout.

    Raises:
        PingError: Any PingError will raise again if `ping3.EXCEPTIONS` is True.
    """
    with socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP) as sock:
        sock.setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
        if interface:
            sock.setsockopt(socket.SOL_SOCKET, SOCKET_SO_BINDTODEVICE, interface.encode())  # packets will be sent from specified interface.
            _debug("Socket Interface Binded:", interface)
        if src_addr:
            sock.bind((src_addr, 0))  # only packets send to src_addr are received.
            _debug("Socket Source Address Binded:", src_addr)
        thread_id = threading.get_native_id() if hasattr(threading, 'get_native_id') else threading.currentThread().ident  # threading.get_native_id() is supported >= python3.8.
        process_id = os.getpid()  # If ping() run under different process, thread_id may be identical.
        icmp_id = zlib.crc32("{}{}".format(process_id, thread_id).encode()) & 0xffff  # to avoid icmp_id collision.
        try:
            send_one_ping(sock=sock, dest_addr=dest_addr, icmp_id=icmp_id, seq=seq, size=size)
            delay = receive_one_ping(sock=sock, icmp_id=icmp_id, seq=seq, timeout=timeout)  # in seconds
        except errors.HostUnknown as e:  # Unsolved
            _debug(e)
            _raise(e)
            return False
        except errors.PingError as e:
            _debug(e)
            _raise(e)
            return None
        if delay is None:
            return None
        if unit == "ms":
            delay *= 1000  # in milliseconds
    return delay 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def tcp_trace(ip, port, tr_tout, output, collect):
	status = {'end': False}
	rx = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
	rx.setblocking(0)
	rx.settimeout(tr_tout)
	rx.bind(('', 0))

	print('\n' + R + 'HOPS'.ljust(7) + 'IP'.ljust(17) + 'HOST' + W + '\n')

	for ttl in range(1,31):
		t = threading.Thread(target=tcp_send(ip, port, ttl, rx, status, tr_tout, output, collect), daemon=True)
		t = t.start()

		if status['end'] == True:
			break
	rx.close() 

def answers(self, other):
        if not isinstance(other, IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ((self.proto == socket.IPPROTO_ICMP) and
            (isinstance(self.payload, ICMP)) and
                (self.payload.type in [3, 4, 5, 11, 12])):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ((conf.checkIPaddr and (self.src != other.dst)) or
                    (self.proto != other.proto)):
                return 0
            return self.payload.answers(other.payload) 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def answers(self, other):
        if not isinstance(other,IP):
            return 0
        if conf.checkIPaddr and (self.dst != other.src):
            return 0
        if ( (self.proto == socket.IPPROTO_ICMP) and
             (isinstance(self.payload, ICMP)) and
             (self.payload.type in [3,4,5,11,12]) ):
            # ICMP error message
            return self.payload.payload.answers(other)

        else:
            if ( (conf.checkIPaddr and (self.src != other.dst)) or
                 (self.proto != other.proto) ):
                return 0
            return self.payload.answers(other.payload) 

def testBadSockTypeProtoCombination(self):
        for socktype, proto in [
            (socket.SOCK_STREAM, socket.IPPROTO_UDP),
            (socket.SOCK_STREAM, socket.IPPROTO_ICMP),
            (socket.SOCK_DGRAM,  socket.IPPROTO_TCP),
            (socket.SOCK_DGRAM,  socket.IPPROTO_FRAGMENT),
            ]:
            try:
                results = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socktype, proto)
                self.failUnless(len(results) == 0, "getaddrinfo with bad socktype/proto combo should not have returned results")
            except Exception, x:
                self.fail("getaddrinfo with bad socktype/proto combo should not have raised exception") 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def createInternetSocket(self):
        s = socket.socket(
            socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)

        s.setblocking(0)

        fd = s.fileno()

        # Set close-on-exec

        flags = fcntl.fcntl(fd, fcntl.F_GETFD)
        flags = flags | fcntl.FD_CLOEXEC
        fcntl.fcntl(fd, fcntl.F_SETFD, flags)

        return s 

def testNoSockTypeWithProto(self):
        for expect_results, proto in [
            (True,  socket.IPPROTO_UDP),
            (False, socket.IPPROTO_ICMP),
            (True,  socket.IPPROTO_TCP),
            (False, socket.IPPROTO_FRAGMENT),
            ]:
            try:
                results = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, 0, proto)
                if expect_results:
                    self.failUnless(len(results) > 0, "getaddrinfo with no socktype and supported proto combo should have returned results")
                else:
                    self.failUnless(len(results) == 0, "getaddrinfo with no socktype and unsupported proto combo should not have returned results")
            except Exception, x:
                self.fail("getaddrinfo with no socktype (un)supported proto combo should not have raised exception") 

def hashret(self):
        if ((self.proto == socket.IPPROTO_ICMP)
            and (isinstance(self.payload, ICMP))
                and (self.payload.type in [3, 4, 5, 11, 12])):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src), inet_aton(self.dst)) + struct.pack("B", self.proto) + self.payload.hashret()
            else:
                return struct.pack("B", self.proto) + self.payload.hashret() 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def testBadSockTypeProtoCombination(self):
        for socktype, proto in [
            (socket.SOCK_STREAM, socket.IPPROTO_UDP),
            (socket.SOCK_STREAM, socket.IPPROTO_ICMP),
            (socket.SOCK_DGRAM,  socket.IPPROTO_TCP),
            (socket.SOCK_DGRAM,  socket.IPPROTO_FRAGMENT),
            ]:
            try:
                results = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socktype, proto)
                self.failUnless(len(results) == 0, "getaddrinfo with bad socktype/proto combo should not have returned results")
            except Exception, x:
                self.fail("getaddrinfo with bad socktype/proto combo should not have raised exception") 

def testNoSockTypeWithProto(self):
        for expect_results, proto in [
            (True,  socket.IPPROTO_UDP),
            (False, socket.IPPROTO_ICMP),
            (True,  socket.IPPROTO_TCP),
            (False, socket.IPPROTO_FRAGMENT),
            ]:
            try:
                results = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, 0, proto)
                if expect_results:
                    self.failUnless(len(results) > 0, "getaddrinfo with no socktype and supported proto combo should have returned results")
                else:
                    self.failUnless(len(results) == 0, "getaddrinfo with no socktype and unsupported proto combo should not have returned results")
            except Exception, x:
                self.fail("getaddrinfo with no socktype (un)supported proto combo should not have raised exception") 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def hashret(self):
        if ( (self.proto == socket.IPPROTO_ICMP)
             and (isinstance(self.payload, ICMP))
             and (self.payload.type in [3,4,5,11,12]) ):
            return self.payload.payload.hashret()
        else:
            if conf.checkIPsrc and conf.checkIPaddr:
                return strxor(inet_aton(self.src),inet_aton(self.dst))+struct.pack("B",self.proto)+self.payload.hashret()
            else:
                return struct.pack("B", self.proto)+self.payload.hashret() 

def main(argv):
    global BIND

    if len(argv) < 3:
        print('Usage: ./udp-scan.py <bind-ip> <target-subnet>')
        sys.exit(1)

    bindAddr = sys.argv[1]
    subnet = sys.argv[2]

    sockProto = None
    if os.name == 'nt':
        sockProto = socket.IPPROTO_IP
    else:
        sockProto = socket.IPPROTO_ICMP

    sniffer = socket.socket(socket.AF_INET, socket.SOCK_RAW, sockProto)
    if DEBUG: print('[.] Binding on {}:0'.format(bindAddr))
    sniffer.bind((bindAddr, 0))

    # Include IP headers in the capture
    sniffer.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)

    # In Windows, set up promiscous mode.
    if os.name == 'nt':
        try:
            sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_ON)
        except socket.error, e:
            print('[!] Could not set promiscous mode ON: "{}"'.format(str(e)))

    # Sending thread 

def serve(self):
		server_socket = None
		self.serverorclient = 1

		try:
			common.internal_print("Starting module: {0} on {1}".format(self.get_module_name(), self.config.get("Global", "serverbind")))
		
			server_socket = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
			if (self.os_type == common.OS_WINDOWS) or (self.os_type == common.OS_MACOSX):
				common.internal_print("This module can be run in client mode only on this operating system.", -1)

				self.cleanup()
				return

			self.comms_socket = server_socket
			self.authenticated = False

			self.communication_initialization()
			self.communication(False) 
			
		except KeyboardInterrupt:

				self.cleanup()
				return

		self.cleanup()

		return