def get_socketconfig_from_ip(self, ip, port, protocol):
"""
Returns a SocketConfig object for the given ip, port, protocol
:param ip: IP address belonging to an existing interface
:param port: port numer
:param protocol: protocol type
:type protocol: socket.SOCK_STREAM or socket.SOCK_DGRAM
:return: SocketConfig
"""
sc = SocketConfig()
sc.bind_port = int(port)
if isinstance(ip, (ipaddress.IPv4Address, ipaddress.IPv6Address)):
sc.bind_addr = ip
else:
sc.bind_addr = ipaddress.ip_address(ip)
sc.bind_family = sc.bind_addr.version
if isinstance(protocol, str):
if protocol.lower() == 'tcp':
sc.bind_protocol = socket.SOCK_STREAM
elif protocol.lower() == 'udp':
sc.bind_protocol = socket.SOCK_DGRAM
else:
raise Exception('Unknown protocol definition %s' % protocol)
elif isinstance(protocol, int):
sc.bind_protocol = protocol
else:
raise Exception('Unknown protocol definition %s' % protocol)
sc.bind_iface = self.ip_name_lookup[sc.bind_addr]
sc.bind_iface_idx = self.interfaces[sc.bind_iface].ifindex
return sc
def get_client_socketconfig(self, ifname, protocol, ipversion = None, reuse_address = False, reuse_port= False):
if ifname not in self.interfaces:
raise Exception('Could not find ifname %s!' % ifname)
scl = []
try:
iv = []
if ipversion is None:
iv.append(4)
iv.append(6)
elif isinstance(ipversion, str):
if int(ipversion) in [4,6]:
iv.append(int(ipversion))
else:
raise Exception()
elif isinstance(ipversion, int):
if ipversion in [4,6]:
iv.append(ipversion)
else:
raise Exception()
elif isinstance(ipversion, list):
iv = ipversion
except Exception as e:
raise Exception('Unknown IP version %s' % repr(ipversion))
for version in iv:
for lookup_ifname, ver in self.name_ip_lookup:
if ifname != lookup_ifname:
continue
if ver != version:
break
for address in self.name_ip_lookup[(lookup_ifname, ver)]:
sc = SocketConfig()
sc.bind_port = 0
sc.bind_addr = address
sc.bind_family = sc.bind_addr.version
if isinstance(protocol, str):
if protocol.lower() == 'tcp':
sc.bind_protocol = socket.SOCK_STREAM
elif protocol.lower() == 'udp':
sc.bind_protocol = socket.SOCK_DGRAM
else:
raise Exception('Unknown protocol definition %s' % protocol)
elif isinstance(protocol, int):
sc.bind_protocol = protocol
else:
raise Exception('Unknown protocol definition %s' % protocol)
sc.bind_iface = ifname
sc.bind_iface_idx = self.interfaces[sc.bind_iface].ifindex
sc.is_server = False
sc.reuse_address = reuse_address
sc.reuse_port = reuse_port
scl.append(sc)
return scl
def get_sc(self, ifname, address, port, protocol, server):
sc = SocketConfig()
sc.bind_port = int(port)
sc.bind_addr = address
sc.bind_family = sc.bind_addr.version
sc.bind_protocol = self.get_protocol(protocol)
sc.bind_iface = ifname
sc.bind_iface_idx = self.interfaces[sc.bind_iface].ifindex
sc.is_server = server
return sc
def get_socketconfig(self, ifname, port, protocol, ipversion = None):
"""
Returns a list of socketconfig objects to create server.
:param ifname: Interface name
:type ifname: str
:param port: Port number
:type port: int
:param protocol: Protocol type
:type protocol: str or int or socket.SOCK_STREAM/socket.SOCK_DGRAM
:param ipversion: IP address version
:return: list of SocketConfig
"""
if ifname not in self.interfaces:
raise Exception('Could not find ifname %s!' % ifname)
scl = []
try:
iv = []
if ipversion is None:
iv.append(4)
iv.append(6)
elif isinstance(ipversion, str):
if int(ipversion) in [4,6]:
iv.append(int(ipversion))
else:
raise Exception()
elif isinstance(ipversion, int):
if ipversion in [4,6]:
iv.append(ipversion)
else:
raise Exception()
elif isinstance(ipversion, list):
iv = ipversion
except Exception as e:
raise Exception('Unknown IP version %s' % repr(ipversion))
for version in iv:
for lookup_ifname, ver in self.name_ip_lookup:
if ifname != lookup_ifname:
continue
if ver != version:
break
for address in self.name_ip_lookup[(lookup_ifname, ver)]:
sc = SocketConfig()
sc.bind_port = int(port)
sc.bind_addr = address
sc.bind_family = sc.bind_addr.version
if isinstance(protocol, str):
if protocol.lower() == 'tcp':
sc.bind_protocol = socket.SOCK_STREAM
elif protocol.lower() == 'udp':
sc.bind_protocol = socket.SOCK_DGRAM
else:
raise Exception('Unknown protocol definition %s' % protocol)
elif isinstance(protocol, int):
sc.bind_protocol = protocol
else:
raise Exception('Unknown protocol definition %s' % protocol)
sc.bind_iface = ifname
sc.bind_iface_idx = self.interfaces[sc.bind_iface].ifindex
sc.is_server = True
scl.append(sc)
return scl