def is_local_destination(self, mapping_socket):
destination_is_local = False
if mapping_socket.destination_ip is not None and mapping_socket.family == "AF_INET":
for nic in self.nics:
if NetworkInterfaceCard.ip_is_in_subnet(mapping_socket.destination_ip,
nic.ipv4_subnet_addr, nic.ipv4_subnet_mask):
destination_is_local = True
break
elif mapping_socket.destination_ip is not None and mapping_socket.family == "AF_INET6":
destination_ipv4 = MapSocket.ipv6_2_ipv4(mapping_socket.destination_ip)
if destination_ipv4 != mapping_socket.destination_ip:
for nic in self.nics:
if NetworkInterfaceCard.ip_is_in_subnet(destination_ipv4,
nic.ipv4_subnet_addr, nic.ipv4_subnet_mask):
destination_is_local = True
break
else:
#TODO: check is ipv6 in subnet ?
for nic in self.nics:
if nic.ipv6_address is not None and mapping_socket.destination_ip == nic.ipv6_address:
destination_is_local = True
break
elif NetworkInterfaceCard.ip_is_in_subnet(mapping_socket.destination_ip,
nic.ipv4_subnet_addr, nic.ipv4_subnet_mask):
destination_is_local = True
break
elif mapping_socket.family == "AF_UNIX":
destination_is_local = True
return destination_is_local
