Python socket.IPV6_JOIN_GROUP Examples
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code examples of socket.IPV6_JOIN_GROUP().
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Example #1
Source File: multicast_checks.py From rift-python with Apache License 2.0 | 6 votes |
def _create_ipv6_sockets(loopback_enabled): # Open a multicast send socket, with IP_MULTICAST_LOOP enabled or disabled as requested. intf_name = find_ethernet_interface() intf_index = socket.if_nametoindex(intf_name) mcast_address = "ff02::abcd:99" port = 30000 group = (mcast_address, port) txsock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP) txsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) txsock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, intf_index) if loopback_enabled: txsock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, 1) else: txsock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, 0) txsock.connect(group) # Open a multicast receive socket and join the group rxsock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP) req = struct.pack("=16si", socket.inet_pton(socket.AF_INET6, mcast_address), intf_index) if platform.system() == "Darwin": rxsock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, req) else: rxsock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_ADD_MEMBERSHIP, req) rxsock.bind(("::", port)) return (txsock, rxsock)
Example #2
Source File: services.py From maas with GNU Affero General Public License v3.0 | 6 votes |
def join_ipv6_beacon_group(sock, ifindex): """Joins the MAAS IPv6 multicast group using the specified UDP socket. :param sock: An opened IPv6 UDP socket. :param ifindex: The interface index that should join the multicast group. """ # XXX mpontillo 2017-06-21: Twisted doesn't support IPv6 here yet. # It would be nice to do this: # transport.joinGroup(BEACON_IPV6_MULTICAST) ipv6_join_sockopt_args = socket.inet_pton( socket.AF_INET6, BEACON_IPV6_MULTICAST ) + struct.pack("I", ifindex) try: sock.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, ipv6_join_sockopt_args ) except OSError: # Do this on a best-effort basis. We might get an "Address already in # use" error if the group is already joined, or (for whatever reason) # it is not possible to join a multicast group using this interface. pass
Example #3
Source File: minusconf.py From scoop with GNU Lesser General Public License v3.0 | 5 votes |
def _multicast_join_group(sock, family, addr): group_bin = _inet_pton(family, addr) if family == socket.AF_INET: # IPv4 mreq = group_bin + struct.pack('=I', socket.INADDR_ANY) sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) elif family == socket.AF_INET6: # IPv6 mreq = group_bin + struct.pack('@I', 0) sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq) else: raise ValueError('Unsupported protocol family ' + family)
Example #4
Source File: recipe-442490.py From code with MIT License | 5 votes |
def ipv6Multicast(host='::1', maddr=maddr): haddr = socket.getaddrinfo(host, maddr[1], socket.AF_INET6, socket.SOCK_DGRAM)[0][-1] maddr = socket.getaddrinfo(maddr[0], maddr[1], socket.AF_INET6, socket.SOCK_DGRAM)[0][-1] sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) if hasattr(socket, "SO_REUSEPORT"): sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1) sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, 1) sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, 5) ifn = haddr[3] or if_nametoindex('lo0') ifn = struct.pack("I", ifn) sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, ifn) group = socket.inet_pton(socket.AF_INET6, maddr[0]) + ifn sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, group) sock.bind(haddr) sock.setblocking(False) return sock, maddr #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #~ Main #~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Example #5
Source File: wsdd.py From wsdd with MIT License | 5 votes |
def init_v6(self): idx = socket.if_nametoindex(self.interface.name) self.multicast_address = (WSD_MCAST_GRP_V6, WSD_UDP_PORT, 0x575C, idx) # v6: member_request = { multicast_addr, intf_idx } mreq = ( socket.inet_pton(self.family, WSD_MCAST_GRP_V6) + struct.pack('@I', idx)) self.recv_socket.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq) self.recv_socket.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 1) # bind to network interface, i.e. scope and handle OS differences, # see Stevens: Unix Network Programming, Section 21.6, last paragraph try: self.recv_socket.bind((WSD_MCAST_GRP_V6, WSD_UDP_PORT, 0, idx)) except OSError: self.recv_socket.bind(('::', 0, 0, idx)) self.send_socket.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, 0) self.send_socket.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, args.hoplimit) self.send_socket.setsockopt( socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, idx) self.transport_address = '[{0}]'.format(self.address) self.listen_address = (self.address, WSD_HTTP_PORT, 0, idx)
Example #6
Source File: mcast.py From odoo13-x64 with GNU General Public License v3.0 | 5 votes |
def receiver(group): # Look up multicast group address in name server and find out IP version addrinfo = socket.getaddrinfo(group, None)[0] # Create a socket s = socket.socket(addrinfo[0], socket.SOCK_DGRAM) # Allow multiple copies of this program on one machine # (not strictly needed) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # Bind it to the port s.bind(('', MYPORT)) group_bin = socket.inet_pton(addrinfo[0], addrinfo[4][0]) # Join group if addrinfo[0] == socket.AF_INET: # IPv4 mreq = group_bin + struct.pack('=I', socket.INADDR_ANY) s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) else: mreq = group_bin + struct.pack('@I', 0) s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq) # Loop, printing any data we receive while True: data, sender = s.recvfrom(1500) while data[-1:] == '\0': data = data[:-1] # Strip trailing \0's print(str(sender) + ' ' + repr(data))
Example #7
Source File: mcast.py From android_universal with MIT License | 5 votes |
def receiver(group): # Look up multicast group address in name server and find out IP version addrinfo = socket.getaddrinfo(group, None)[0] # Create a socket s = socket.socket(addrinfo[0], socket.SOCK_DGRAM) # Allow multiple copies of this program on one machine # (not strictly needed) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # Bind it to the port s.bind(('', MYPORT)) group_bin = socket.inet_pton(addrinfo[0], addrinfo[4][0]) # Join group if addrinfo[0] == socket.AF_INET: # IPv4 mreq = group_bin + struct.pack('=I', socket.INADDR_ANY) s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) else: mreq = group_bin + struct.pack('@I', 0) s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq) # Loop, printing any data we receive while True: data, sender = s.recvfrom(1500) while data[-1:] == '\0': data = data[:-1] # Strip trailing \0's print(str(sender) + ' ' + repr(data))
Example #8
Source File: udp_rx_handler.py From rift-python with Apache License 2.0 | 4 votes |
def create_socket_ipv6_rx_mcast(self): if self._interface_index is None: self.warning("Could not create IPv6 multicast receive socket: " "unknown interface index") return None try: sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP) except (IOError, OSError) as err: self.warning("Could not create IPv6 UDP socket: %s", err) return None self.enable_addr_and_port_reuse(sock) try: scoped_ipv6_multicast_address = ( str(self._multicast_address) + '%' + self._interface_name) sockaddr = socket.getaddrinfo(scoped_ipv6_multicast_address, self._local_port, socket.AF_INET6, socket.SOCK_DGRAM)[0][4] sock.bind(sockaddr) except (IOError, OSError) as err: self.warning("Could not bind IPv6 UDP socket to address %s port %d: %s", self._multicast_address, self._local_port, err) return None try: # pylint:disable=no-member req = struct.pack("=16si", socket.inet_pton(socket.AF_INET6, self._multicast_address), self._interface_index) if MACOS: sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, req) else: sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_ADD_MEMBERSHIP, req) except (IOError, OSError) as err: self.warning("Could not join IPv6 group %s for interface index %s: %s", self._multicast_address, self._interface_index, err) return None if not MACOS: try: # pylint:disable=no-member sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_RECVPKTINFO, 1) except (IOError, OSError) as err: # Warn, but keep going; this socket option is not supported on macOS self.warning("Could not set IPV6_RECVPKTINFO socket option: %s", err) try: sock.setblocking(0) except (IOError, OSError) as err: self.warning("Could set multicast receive IPv6 UDP to non-blocking mode: %s", err) return None return sock
Example #9
Source File: Multicast.py From p2ptv-pi with MIT License | 4 votes |
def _joinMulticast(self, addr, port, sock): import struct for res in socket.getaddrinfo(addr, port, socket.AF_UNSPEC, socket.SOCK_DGRAM): af, socktype, proto, canonname, sa = res break if af == socket.AF_INET6: num_colons = addr.count(':') new_colons = ':' for i in range(num_colons, 8): new_colons = '%s0:' % new_colons addr = addr.replace('::', new_colons) addr_pack = '' for l in addr.split(':'): word = int(l, 16) addr_pack = addr_pack + struct.pack('!H', word) interfaces = [] for i in range(1, 32): try: mreq = addr_pack + struct.pack('l', i) sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq) ok = True self.log.debug('Joined IPv6 multicast on interface %d' % i) interfaces.append(i) except Exception as e: pass if len(interfaces) == 0: self.log.fatal('Could not join on any interface') raise Exception('Could not join multicast on any interface') return interfaces if af == socket.AF_INET: addr_pack = '' grpaddr = 0 bytes = map(int, string.split(addr, '.')) for byte in bytes: grpaddr = grpaddr << 8 | byte ifaddr = socket.INADDR_ANY mreq = struct.pack('ll', socket.htonl(grpaddr), socket.htonl(ifaddr)) try: self.sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) except Exception as e: self.log.exception('Exception joining IPv4 multicast') return []